Manejo de cárie radicular: um guia para o dentista brasileiro baseado na tradução e adaptação cultural do consenso internacional/ORCA E EFCD / Management of root caries: a guide for the Brazilian dentist based on the translation and cultural adaptation of the international consensus/ORCA and EFCD

Objetivo: A cárie radicular é um problema da Odontologia moderna, porém é notável a falta de diretrizes sobre o seu manejo. Objetivamos elaborar e adaptar um guia a partir da tradução das recomendações do consenso in-ternacional European Organization for Caries Research (ORCA) e European Federation of Conservative Dentistry (EFCD) para as tomadas de decisão clínica na intervenção do processo de cárie na pessoa idosa, com foco na cárie radicular. Materiais e métodos: O protocolo de tradução das recomendações do consenso internacional consistiu nas etapas: (1) tradução inicial, (2) síntese da tradução, (3) retradução, (4) revisão por comitê de especialistas, com adaptação cultural. A partir da tradução, foi desenvolvido um guia com diretrizes para tratamento de cárie radicular no Brasil. Resultados: Para prevenção de novas lesões é recomendada a escovação diária com dentifrício >1.500ppm/F. Dentifrícios com 5.000ppm/F ou vernizes (>20.000ppm/F) podem ser indicados para paralisar lesões radiculares ativas e para prevenção em pessoas idosas com alta suscetibilidade à cárie radicular, e o Diamino Fluoreto de Prata (>30%) para paralisar lesões ativas. Intervenções invasi-vas diretas são indicadas dependendo da situação clínica. Discussão: Nota-se uma falta de interesse em estudos primários sobre tratamentos para cárie radicular, criando assim uma lacuna em relação ao seu manejo, que reflete no nível de evidência detectado pelo consenso. Conclusão: Guias clíni-cos são importantes para reduzir a lacuna entre a pesquisa e a prática clínica. Essa tradução para o português facilitará o acesso dos dentistas bra-sileiros em relação a evidência consolidada até o momento para o manejo de cárie radicular.

Aim: Root caries are a problem in modern dentistry, but the lack of guidelines regarding their management is notable. We aim to develop and adapt a guide based on the translation of the recommendations of the international consensus as outlined by the European Organization for Caries Research (ORCA) and the European Federation of Conservative Dentistry (EFCD) for clinical decision-making in the intervention of the caries process in the elderly, with a focus on root caries. Materials and methods: The protocol for translating the recommendations of the international consensus consisted of the following steps: (1) initial translation, (2) synthesis of the translation, (3) back-translation, (4) review by an expert committee with cultural adaptation. Based on the translation, a guide was developed with guidelines for the treatment of root caries in Brazil. Results: To prevent new lesions, daily brushing with toothpaste >1,500ppm/F is recommended. Toothpaste with 5,000ppm/F or varnishes (>20,000ppm/F) may be recommended to paralyze active root lesions and for prevention in elderly people with high susceptibility to root caries, and Silver Diamine Fluoride (>30%) to paralyze active lesions. Direct invasive interventions are indicated depending on the clinical situation. Discussion: There is a lack of interest in primary studies on treatments for root caries, thus creating a gap in relation to its management, which is reflected by the level of evidence detected in the consensus. Conclusion: Clinical guidelines are important to reduce the gap between research and clinical practice. This translation into Portuguese will facilitate access by Brazilian dentists to the consolidated evidence gathered to date for the management of root caries.

Análise in vitro da capacidade de soluções contendo fluoreto e/ou trimetafosfato na remineralização da dentina e na inibição da atividade de metaloproteinases da matriz dentinária / In vitro analysis of the capacity of solutions containing fluoride and/or trimetaphosphate in the remineralization of dentin and in the inhibition of the activity of dentin matrix metalloproteinases

Objetivo: O objetivo deste estudo foi investigar o potencial anti-proteolítico contra MMP-2 e MMP-9 e a capacidade de induzir a remineralização da dentina, através de soluções contendo diferentes concentrações de TMP (na sua forma cíclica), diferentes concentrações de F e associação TMP/F. Métodos: Blocos de dentina radicular (6mmx4mmx2mm, n = 130) foram selecionados e divididos aleatoriamente em 13 grupos/soluções experimentais (n = 10): 1) Placebo (sem F/TMP); 2) 0,3% TMP hidrolisado; 3) 1% TMP hidrolisado; 4) 3% TMP hidrolisado; 5) 0,3% TMP; 6) 1% TMP; 7) 3% TMP; 8) 250 ppm F; 9 500 ppm F; 10) 1100 ppm F; 11) 250 ppm F associado a 0,3% TMP; 12) 500 ppm F associado a 1% TMP e 13) 1100 ppm F associado a 3% TMP. A avaliação do potencial anti-proteolítico das soluções experimentais contra as metaloproteinases da matriz dentinária (- 2 e -9) foi realizado por meio da análise zimográfica. Para as análises mecânicas, três áreas foram determinadas para cada espécime: 1- controle (sem tratamento); 2- desmineralizado (cárie artificial); 3- tratado (desmineralizado e submetido a ciclagem de pH por 7 dias, e tratado por 1 min com as soluções experimentais). Os espécimes de dentina foram analisados quanto à porcentagem de recuperação de dureza superficial (%SHR), em dureza transversal (%CSHR) e por microtomografia computadorizada (IMC). Para os dados de dureza e Micro-CT, os resultados foram analisados por ANOVA de medidas repetidas seguida do teste de Student-Newman-Keuls (p <0,05). Resultados: A análise zimográfica mostrou que 1100 ppm F + 3% de TMP promoveu inibição completa da atividade gelatinolítica (MMP-2; MMP-9). Os grupos com TMP não hidrolisados apresentaram efeito remineralizador (% SHR e % CSHR) superior aos grupos hidrolisados. O grupo 1100F + TMP promoveu a maior %SHR e %CSHR entre todos os grupos (p <0,001), sendo respectivamente 15,4 e 10,5%, superior ao grupo 1100F. Os grupos contendo 1100F e 1100F + 3%TMP apresentaram maior concentração mineral. Conclusão: Com base nos resultados, 3% TMP atua como um agente antiproteolítico contra metaloproteinases da matriz dentinária. Além disso, quando suplementado com 1100F, 3% TMP potencializa a remineralização, aumentando significativamente as propriedades mecânicas da dentina tratada. Os tratamentos com TMP não hidrolisado e associado ao F maior que as soluções fluoretadas sem o TMP. Significância clínica: Dessa forma, uma potencial estratégia preventiva e terapêutica pode ser considerada na clínica odontológica, principalmente na terapia da cárie radicular, como também para método preventivo de lesões iniciais de cárie dentinária ou no pré-tratamento da dentina, utilizando-os como agentes cross-linker em procedimentos restauradores(AU)

Objective: The aim of this study was to investigate the anti-proteolytic potential against MMP-2 and MMP-9 and the ability to induce dentin remineralization, through solutions containing different concentrations of TMP (in its cyclic form), different concentrations of F and TMP / F association. Methods: Root dentin blocks (6mmx4mmx2mm, n = 130) were selected and randomly divided into 13 groups / experimental solutions (n = 10): 1) Placebo (without F / TMP); 2) 0.3% hydrolyzed TMP; 3) 1% hydrolyzed TMP; 4) 3% hydrolyzed TMP; 5) 0.3% TMP; 6) 1% TMP; 7) 3% TMP; 8) 250 ppm F; 9,500 ppm F; 10) 1100 ppm F; 11) 250 ppm F associated with 0.3% TMP; 12) 500 ppm F associated with 1% TMP and 13) 1100 ppm F associated with 3% TMP. The evaluation of the antiproteolytic potential of experimental solutions against dentin matrix metalloproteinases (- 2 and -9) was carried out by means of zymographic analysis. For mechanical analysis, three areas were determined for each specimen: 1- control (without treatment); 2- demineralized (artificial caries); 3- treated (demineralized and subjected to pH cycling for 7 days, and treated for 1 min with the experimental solutions). The dentin specimens were analyzed for the percentage of recovery of superficial hardness (% SHR), in crosssectional hardness (% CSHR) and by computed microtomography (∆IMC). For the hardness and Micro-CT data, the results were analyzed by repeated measures ANOVA followed by the Student-Newman-Keuls test (p <0.05). Results: The zymographic analysis showed that 1100 ppm F + 3% TMP promoted complete inhibition of gelatinolytic activity (MMP-2; MMP-9). The groups with non-hydrolyzed TMP showed a remineralizing effect (% SHR and % CSHR) superior to the hydrolyzed groups. The 1100F + TMP group promoted the highest % SHR and % CSHR among all groups (p <0.001), being 15.4 and 10.5%, respectively, higher than the 1100F group. The groups containing 1100F and 1100F + 3% TMP showed higher mineral concentration. Conclusion: Based on the results, 3% TMP acts as an antiproteolytic agent against dentinal matrix metalloproteinases. In addition, when supplemented with 1100F, 3% TMP enhances remineralization, significantly increasing the mechanical properties of the treated dentin. Treatments with non-hydrolyzed TMP and associated with F greater than fluoridated solutions without TMP. Clinical significance: Thus, a potential preventive and therapeutic strategy can be considered in the dental clinic, mainly in the treatment of root caries, as well as for the preventive method of initial lesions of dental caries or in the pretreatment of dentin, using them as agents cross-linker in restorative procedures(AU)

Bacterial analysis of biofilms from tooth root surfaces presenting different caries activity / Análise bacteriológica de biofilmes de superfícies dentárias radiculares apresentando diferentes estágios de atividade de cárie

This study evaluated the numbers and determined the proportion of mutans streptococci and Lactobacillus spp., which are possible relevant cariogenic organisms, in biofilms recovered from lesions at root surfaces with active caries lesions (ARC), inactive caries lesions, and sound root surfaces (SRS). Samples were cultured in MSB agar for mutans streptococci counts, Rogosa agar for Lactobacillus spp. counts, and brain-heart infusion agar for total viable anaerobic counts. After incubation, the number of colony-forming units (CFUs) was determined and compared between groups by the Mann-Whitney U test with a significance level set at 95%. The proportion of counts of mutans streptococci and Lactobacillus spp. in the total viable microorganisms was also analyzed by Chi-square test. Ninety samples (30 from each surface) from 37 patients were cultured and analyzed. The CFU was similar between mutans streptococci and Lactobacillus spp.These species were present in at least half of the samples and no difference was found in the frequency of isolation of these species. Only 6 samples showed a proportion of more than 10% of mutans streptococci; 4 of the samples were from ARC. Most (93%) SRS samples did not contain viable Lactobacillus spp. The data indicate the low counts of mutans streptococci and Lactobacillus spp. in root sur-faces, regardless of the activity of caries lesions.

O estudo analisou contagens e proporções de mutans strep-tococci e Lactobacillus spp., que podem ser microorganismos importantes em lesões de cárie radicular com diferentes atividades. Biofilmes foram coletados em três locais: ARC ­ superfície radicular com lesão ativa de cárie; IRC ­ superfícies radiculares com lesão inativa de cárie; SRS ­ superfícies de raizes hígidas. As amostras foram cultivadas em agar MSB para contagens de mutans streptococci; agar Rogosa para Lactobacillus spp., e agar BHI para contagens de microrganis-mos viáveis anaeróbicos totais. Após a incubação, o número de unidades formadoras de colônias (UFCs) foi determinado e comparado entre os grupos pelo teste de Mann-Whitney U test. O nível de significância foi estabelecido em 95%. A pro-porção de contagem de mutans streptococci e Lactobacillusspp. no total de microrganismos viáveis também foi analisado através do teste de qui-quadrado. Um total de 90 amostras de 37 pacientes foram cultivadas e analisadas: 30 amostras de ARC, 30 de IRC e 30 de SRS. Números de UFC foram seme-lhantes entre os grupos para ambos, mutans streptococci e Lactobacillus spp. Estas espécies estavam presentes em pelo menos metade de todas as amostras e nenhuma diferença foi encontrada na frequência de isolamento dessas espécies dentro dos grupos. Apenas 6 amostras apresentaram mais de 10% de mutans streptococci e 4 foram de ARC. Em relação aos Lactobacillus spp., 93% das amostras não apresentaram proporção dessas bactérias nas SRS. Mutans streptococci e Lactobacillus spp. estão presentes em baixa proporção nas superfícies radiculares, independentemente da atividade das lesões de cárie.

The role of Candida albicans in root caries biofilms: an RNA-seq analysis

Abstract Objective This study sought to analyze the gene expression of Candida albicans in sound root surface and root caries lesions, exploring its role in root caries pathogenesis. Methodology The differential gene expression of C. albicans and the specific genes related to cariogenic traits were studied in association with samples of biofilm collected from exposed sound root surface (SRS, n=10) and from biofilm and carious dentin of active root carious lesions (RC, n=9). The total microbial RNA was extracted, and the cDNA libraries were prepared and sequenced on the Illumina Hi-Seq2500. Unique reads were mapped to 163 oral microbial reference genomes including two chromosomes of C. albicans SC5314 (14,217 genes). The putative presence of C. albicans was estimated (sum of reads/total number of genes≥1) in each sample. Count data were normalized (using the DESeq method package) to analyze differential gene expression (using the DESeq2R package) applying the Benjamini-Hochberg correction (FDR<0.05). Results Two genes (CaO19.610, FDR=0.009; CaO19.2506, FDR=0.018) were up-regulated on SRS, and their functions are related to biofilm formation. Seven genes ( UTP20 , FDR=0.018; ITR1 , FDR=0.036; DHN6 , FDR=0.046; CaO19.7197 , FDR=0.046; CaO19.7838 , FDR=0.046; STT4 , FDR=0.046; GUT1 , FDR=0.046) were up-regulated on RC and their functions are related to metabolic activity, sugar transport, stress tolerance, invasion and pH regulation. The use of alternative carbon sources, including lactate, and the ability to form hypha may be a unique trait of C. albicans influencing biofilm virulence. Conclusions C. albicans is metabolically active in SRS and RC biofilm, with different roles in health and disease.

Dental tooth decay profile in an institutionalized elder population of Northern Portugal / Perfil de cárie dentária numa população idosa institucionalizada do Norte de Portugal

Objectives: the purpose of this study was to assess the dental tooth decay profile of an elderly population from Northern Portugal. Material and Methods: this is a descriptive, cross-sectional study where a questionnaire, intended to assess the institutionalized elders oral health condition, was applied with the purpose of quantifying certain oral conditions. Tooth decay was assessed using the DMFT Index for the crown's tooth and the individual radicular caries index (RCIi) for the root's condition assessment. Univariate analysis and multivariable logistical regressions were performed (p < 0.05) using the IBM© SPSS© Statistics vs.19.0. Results: three hundred and seventy-two elderly participants were assessed with an average age of 78.8 years, of which 260 were women (69.9%). Of the sample 30.4% had no literacy and 18.3% were dependent on their daily oral hygiene care, 30.9% (95%CI:26.2%-35.6%) were edentulous and 84.9% (95%CI:81.3%-88.5%) had less than 20 teeth. The average number of teeth was 8.9 (± 8.7) and the DMFT was 25.6 (± 7.3). The RCIi for men was 44.3% (± 30.4%) and 39.4% (± 31.2%) for women. Using multivariate logistical regression model the outcome RCIi≥20% was shown to be significantly and positively associated with the use of removable partial dentures (metal partial dentures: OR = 5.348 (95% CI: 1.176-24,329; p = 0.030) as well as with daily tooth brushing (no toothbrushing: OR = 2.802 (95% CI: 1.445-5.433); p = 0.002). Conclusion: the prevalence of tooth decay in this elder institutionalized population of Northern Portugal is high, mostly due to bad oral hygiene habits associated to the use of metal removable partial dentures. Institutionalized elderly need protocols tailored to their oral health needs and integrated efforts in the institutions are needed to effectively answer the demands related to the elderly cognitive and motor skills (ageing deterioration) decline of physiological functions.(AU)

Objetivos: O objetivo deste estudo foi avaliar o perfil de cárie dentária numa população idosa do norte de Portugal. Material e Métodos: Trata-se de um estudo descritivo, transversal, onde foi aplicado um questionário destinado a avaliar a condição de saúde oral dos idosos institucionalizados, com o objetivo de quantificar determinadas condições orais. A cárie dentária foi avaliada usando o índice CPOD para a coroa do dente e o índice de cárie radicular individual (IRCi) para a avaliação da condição da raiz. Foi realizada análise univariada e regressão logística multivariável (p <0,05) usando o IBM© SPSS© Statistics vs.19.0. Resultados: avaliaram-se 372 idosos, com idade média de 78,8 anos, dos quais 260 eram mulheres (69,9%). Da amostra, 30,4% não tinham escolaridade e 18,3% dependiam de outros para realizar os seus cuidados diários de higiene oral; 30,9% (IC95%: 26,2%-35,6%) eram desdentados e 84,9% (IC95%: 81,3%-88,5%) tinham menos de 20 dentes. O número médio de dentes foi de 8,9 (± 8,7) e o CPOD foi de 25,6 (± 7,3). O ICRi para o género masculino foi de 44,3% (± 30,4%) e de 39,4% (± 31,2%) para o feminino. Usando o modelo de regressão logística multivariada, o resultado ICRi≥20% mostrou-se significativa e positivamente associado ao uso de próteses parciais removíveis (próteses parciais esqueléticas: OR= 5,348 (IC95%: 1,176-24,329; p = 0,030), bem como com escovagem diária (sem escovagem: OR= 2,802 (IC95%: 1,445-5,433); p = 0,002). Conclusão: a prevalência de cárie dentária nesta população idosa institucionalizada do Norte de Portugal é alta, principalmente devido à má higiene oral e hábitos associados ao uso de próteses parciais removíveis esqueléticas. Idosos institucionalizados precisam de protocolos adaptados às suas necessidades de saúde oral e esforços integrados nas instituições para atender efetivamente às necessidades relacionadas com o declínio das funções fisiológicas do idoso, cognitivas e motoras (deterioração do envelhecimento). (AU)

Gene expression profile of Scardovia spp. in the metatranscriptome of root caries

Abstract A few investigations of caries biofilms have identified Scardovia spp.; however, little is known about its involvement in caries pathogenesis. The purpose of this study was to assess the gene expression profile of Scardovia spp. in root caries, and compare it with other microorganisms. Clinical samples from active root caries lesions were collected. Microbial mRNA was isolated and cDNA sequenced. The function and composition of the Scardovia were investigated using two methods: a) de novo assembly of the read data and mapping to contigs, and b) reads mapping to reference genomes. Pearson correlation was performed (p < 0.05). Proportion of Scardovia inopinata and Scardovia wiggsiae sequences ranged from 0-6% in the root caries metatranscriptome. There was a positive correlation between the transcriptome of Lactobacillus spp. and Scardovia spp. (r = 0.70; p = 0.03), as well as with other Bifidobacteriaceae (r = 0.91; p = 0.0006). Genes that code for fructose 6-phosphate phosphoketolase (the key enzyme for "Bifid shunt"), as well as ABC transporters and glycosyl-hydrolases were highly expressed. In conclusion, "Bifid shunt" and starch metabolism are involved in carbohydrate metabolism of S. inopinata and S. wiggsiae in root caries. There is a positive correlation between the metabolism abundance of Lactobacillus spp., Bifidobacteriaceae members, and Scardovia in root caries.

Uso de plasma rico en fibrina comparado con colágeno en el tratamiento de recesión gingival utilizando la técnica estenopéica. Ensayo clínico aleatorizado / Use of fibrin-rich plasma compared to collagen in the treatment of gingival recession using the stenopic technique. Randomized clinical trial

La recesión gingival (RG) es un problema de salud bucodental frecuente que aumenta con la edad, predispone a hipersensibilidad dentaria, caries radicular, inflamación gingival y efectos antiestéticos. El objetivo de este ensayo clínico aleatorizado fue evaluar comparativamente el efecto clínico del recubrimiento radicular utilizando la técnica estenopéica Pinhole con colágeno y la técnica estenopéica Pinhole modificada al incorporarle plasma rico en fibrina (PRF). Veintiséis participantes sistémicamente sanos, con diagnóstico de RG grado I de Miller, fueron reclutados y seguidos por 6 meses después de la cirugía. Los parámetros clínicos registrados fueron nivel de inserción clínica (NIC), RG y banda de encía queratinizada. Los participantes fueron asignados aleatoriamente a un grupo en quienes se utilizó PRF con 14 participantes, tratando 36 piezas dentales, y otro grupo en quienes se utilizó membrana de colágeno con 12 participantes, tratando 35 piezas dentales. Los resultados muestran un logro de ganancia en el NIC en ambos grupos, (M = 45.24 %, DE = 17.37 %) en el grupo PRF y (M = 47.37 %, DE = 15.67 %) en el grupo colágeno, diferencia que no fue significativa (p = .59). En ambos grupos existió un aumento significativo en la banda de encía queratinizada (p < .01). El uso de PRF como material de relleno al realizar la técnica estenopéica genera resultados similares al ser comparado con la técnica convencional que utiliza colágeno. Al presentar un menor costo el PRF aumenta las posibilidades que más personas tengan acceso al tratamiento.

Gingival recession (GR) is a frequent oral health disease that increases with age and may increase risk of dental hypersensitivity, root decay, gingival inflammation and aesthetic problems. The aim of this randomized clinical trial was to compare clinical parameters of dental root coverage using Pinhole technique with collagen and modi¬fied Pinhole technique using platelet-rich fibrin (PRF). Twenty-six participants, systemically healthy, with Miller class I GR diagnosis, were recruited and measured at baseline and after 6 months follow-up. Clinical parameters measured included clinical attachment level (ICL), GR and keratinized gingival width (KGW). All participants were randomly assigned to a group using PRF, with 14 participants and 36 teeth treated, and other group using collagen, with 12 participants and 35 teeth treated. Both PRF group and collagen group gained ICL, (M = 45.24 %, SD = 17.37 %) in PRF group and (M = 47.37 %, SD = 15.67 %) in collagen group, with no statistically significant difference (p = .59). Both groups gained KGW (p < .01). Use of PRF as filled material by using Pinhole technique resulted in similar clinical improvements compare to collagen as filled material. Considering that PRF is cheaper than collagen, it increases chances that people can have access to treatment.

Surgical extrusion of a maxillary premolar after orthodontic extrusion: a retrospective study

OBJECTIVES: Crown-root fracture and cervical caries in maxillary premolars constitute a challenge in cases of subgingival placement of restoration margins. Surgical extrusion has been practiced successfully in permanent anterior teeth. The aim of the present retrospective study was to assess the clinical outcome of surgical extrusion after orthodontic extrusion in maxillary premolars. MATERIALS AND METHODS: Twenty-one single, tapered root maxillary premolars with subgingival crown-root fracture or caries were included. Presurgical orthodontic extrusion was performed on all teeth to prevent root resorption. Extent of extrusion and rotation was determined based on crown/root ratio. The postoperative splinting period was 7 to 14 days. Clinical and radiographic examination was performed at an interval of 1, 2, and 3 months. RESULTS: After the mean follow-up of 41.9±15.2 months, failure was observed as increased mobility in 3 of 21 cases. No significant difference was observed in the outcome of surgical extrusion based on tooth type, age, sex, 180° rotation, or time for extraction. Furthermore, marginal bone loss was not observed. CONCLUSION: Surgical extrusion of maxillary premolars can be a possible therapeutic option in cases of subgingival crown-root fracture.

Dentifrício com fluoreto de amina na prevenção de cárie dentária: uma revisão da literatura / Amine fluoride dentifrice in dental caries prevention: a literature review

Objetivos: Dentifrícios com fluoreto de amina têm sido propostos como uma alternativa superior a outros fluoretos devido à sua estrutura molecular. Assim, o objetivo dessa revisão foi descrever o mecanismo de ação dos dentifrícios contendo fluoreto de amina, assim como seu papel dentro dos processos de remineralização e a avaliação da sua eficácia clinica na prevenção da cárie dentária. Material e métodos: Dois investigadores pesquisaram de forma independente as bases de dados eletrônicas MEDLINE e EMBASE, sem restrição de data. Foram incluídos apenas estudos in vitro, in situ ou ensaios clínicos controlados. Após a leitura dos textos, foi feita a extração de dados. A avaliação do risco de viés dos ensaios clínicos foi realizada pelos mesmos investigadores. Resultados: Estudos in vitro e in situ mostraram que AmF reduziu a desmineralização e promoveu remineralização, sendo que em alguns estudos a remineralização foi maior no grupo que utilizou AmF. Quatro ensaios clínicos incluídos nessa revisão sugerem que existe alguma evidência de superioridade de dentifrícios com fluoreto de amina em relação a redução de incremento de cárie, comparados com os grupos controle. Conclusão: Existe evidência que dentifrícios contendo fluoreto de amina agem no processo de cárie dentária diminuindo a desmineralização, promovendo a remineralização e reduzindo a formação de lesões cavitadas (AU)

Objective: Amine fluoride dentifrices have been proposed as asuperior alternative to other fluorides because of its molecular structure. Thus, the aim of this review was to describe the mechanism of action of toothpastes containing amino fluorides, its effect in the remineralisation process and the evaluation of its clinical efficacy in the prevention of dental caries. Material and methods: A research in MEDLINE and EMBASE was conducted independently by two researchers with no date restriction. In vitro, in situ or randomized controlled trials were included. After text reading data extraction was conducted. Risk of bias assessment was performed for the randomized trials. Results: In vitro and in situ studies observed that AmF reduced demineralization and increased remineralization. In some studies, AmF promoted greater remineralization than the other treatments. Four randomized trials included in this review suggest that there is some evidence of superiority of the amine fluoride dentifrices in the reduction of caries increment, when compared to control groups. Conclusion: There is evidence that suggest that toothpastes containing amino fluoride have an impact on the process of dental caries, reducing demineralization, promoting remineralisation and reducing the formation of carious lesions.(AU)

Panoramic radiography can be an effective diagnostic tool adjunctive to oral examinations in the national health checkup program

PURPOSE: We investigated correlations between the findings of oral examinations and panoramic radiography in order to determine the efficacy of using panoramic radiographs in screening examinations. METHODS: This study included patients who visited dental clinics at National Health Insurance Service (NHIS) Ilsan Hospital for checkups during 2009–2015 and underwent panoramic radiographic examinations within 1 year prior to the oral examinations. Among the 48,006 patients who received checkups, 1,091 were included in this study. The data were evaluated using the Cohen kappa and interrater agreement coefficients. Accuracy, sensitivity, and specificity were calculated using data from the panoramic radiographs as true positive diagnoses. RESULTS: The interrater agreement coefficient for occlusal caries was 28.8%, and the Cohen kappa coefficient was 0.043 between the oral and panoramic radiographic examinations. Root caries and subgingival calculus were only found on the radiographs, while gingival inflammation was found only by the oral examinations. The oral examinations had a specificity for detecting occlusal dental caries of 100%, while their sensitivity for proximal dental caries and supragingival calculus was extremely low (14.0% and 18.3%, respectively) compared to the panoramic radiographic examinations. The oral examinations showed a relatively low sensitivity of 66.2% and a specificity of 43.7% in detecting tooth loss compared with panoramic radiography. CONCLUSIONS: Panoramic radiography can provide information that is difficult to obtain in oral examinations, such as root caries, furcation involvement, and subgingival calculus, which are factors that can directly affect the survival rate of teeth. It therefore seems reasonable and necessary to add panoramic radiography to large-scale health checkup programs such as that provided by the NHIS.

Lesões cervicais em área estética com exposição dos canais radiculares: o papel de uma abordagem multidisciplinar / Cervical lesions in the aesthetic zone with exposure of radicular canals: the role of a multidisciplinary approach

Introdução: algumas situações clínicas não se apresentam como ideais para o tratamento restaurador adequado e o profissional deve encontrar formas alternativas de acesso adequado à margem gengival. Objetivo: apresentar um caso de lesões cervicais com exposição vestibular de canais radiculares no qual a interação entre Endodontia, Odontologia Restauradora e Periodontia foi fundamental para seu sucesso. Relato de caso: o paciente apresentou lesões de cárie cervical subgengivais, com exposição dos canais radiculares dos dentes anteriores. O tratamento inicial foi realizado por meio de uma adaptação do isolamento com lençol de borracha. Após instrumentação, foi introduzida nos canais guta-percha recoberta com vaselina, para auxiliar na restauração temporária da superfície vestibular. O tratamento endodôntico e periodontal foi concluído posteriormente e os dentes foram restaurados durante a cirurgia periodontal, com resina composta. Conclusões: deve-se sempre considerar o planejamento multidisciplinar no tratamento de casos atípicos, bem como adaptar procedimentos convencionais para a abordagem de casos complexos, visando o restabelecimento da saúde, estética e função do paciente.

Caries de superficies radiculares: etiología, diagnóstico y manejo clínico / Root caries lesions: etiology, diagnosis and clinical managment

Como todas las lesiones de caries, la caries de superficies radiculares (CSR) refleja un cambio tisular continuo. Es esencial diagnosticar los síntomas antes que esas lesiones lleguen a estar cavitadas. Por la misma razón, y para poder decidir entre modalidades invasivas y no-invasivas, deberá ser perfectamente comprendida la dinámica de la formación de la lesión cariosa. Este artículo revisa la etiología, los criterios de diagnóstico y los factores de riesgo en caries de superficies radiculares, y también discute la prevención y la terapéutica, haciendo un especial énfasis en procedimientos de remineralización y en un enfoque no-invasivo de este problema.

As all caries lesions, root caries reflect a continuous tissue change. It is essential to diagnose symptoms before these lesions become cavitated. For the same reason, and in order to be able to decide between invasive and non-invasive modalities, the dynamics of the formation of the carious lesion must be perfectly understood. This paper reviews the etiology, diagnostic criteria and risk factors for root surface caries, and also discusses prevention and therapeutics, with a special emphasis on remineralization procedures and a non-invasive approach to this problem.

Approach to the most prevalent oral disorders among the elderly: an integrative review focusing on primary health care / Abordagem das afecções bucais mais prevalentes em idosos: uma revisão integrativa com foco na atenção primária

Abstract Objective: an integrative review of the treatment of oral candidiasis, root caries and xerostomia among the elderly population, focusing on Primary Health Care, was carried out. Method: scientific articles were collected from the MEDLINE/PUBMED database using the keywords "Geriatric dentistry" and "Oral health", crossed with corresponding descriptors, together with specific terms for the pathologies studied, and with "the clinical trial" filter activated. The abstracts of the articles were read by three researchers. Result: oral candidiasis: six randomized clinical trials and one quasi-experimental design study, on the treatment of prosthetic stomatitis by medication and/or the disinfection of dentures by different techniques, were identified; root caries: three randomized clinical trials were included, which tested the use of mouthwash with chlorhexidine solution and oral hygiene instruction associated or otherwise with other drugs; and xerostomia: two articles were analyzed using various medications, and the functional massage of the salivary glands and associated muscles. Conclusion: The results demonstrate a variety of treatment options for the studied clinical situations, although these should be adapted to the characteristics of the services and the population, as standard treatment in Primary Health Care has not been established. Strategies based on soft technologies, such as health education, seem to provide good results. The present study provides additional knowledge for health professionals in search of more resolutive and qualified dental care for the elderly in primary health care. AU

Resumo Objetivo: revisão integrativa sobre o tratamento de candidíase bucal, cárie radicular e xerostomia com foco na Atenção Primária à Saúde, na população idosa. Método: busca de artigos na base de dados MEDLINE/PUBMED sobre as alterações citadas, com os descritores "Geriatric dentistry", "Oral health", cruzados com descritores correspondentes às três patologias, ativado o filtro "Clinical trial", como também termos específicos para as situações clínicas estudadas. Foram excluídos os estudos que não possuíam o escopo da Atenção Primária ou da odontogeriatria. Resultado: candidíase bucal: foram analisados seis ensaios-clínicos randomizados e um quase-experimento sobre o tratamento da estomatite protética por medicamentos e/ou pela desinfecção das próteses por diferentes técnicas; cárie radicular: três ensaios clínicos randomizados foram incluídos, os quais testaram o uso de bochechos com solução de clorexidina e instrução de higiene bucal associada ou não a outros fármacos; e xerostomia: foram analisados dois artigos que utilizaram diversos fármacos e a massagem funcional de glândulas salivares e músculos associados. Conclusão: Os resultados demonstram variadas opções de tratamento para as situações clinicas destacadas devendo ser adequadas as características dos serviços e da população atendida, tendo em vista que não foi estabelecido um tratamento padrão a ser utilizado na Atenção Primária à Saúde. Estratégias com foco em tecnologias leves, tais como a educação em saúde, parecem prover bons resultados. Todavia, o estudo agrega conhecimento aos profissionais de saúde na busca de um atendimento odontológico cada vez mais resolutivo e qualificado para o idoso na atenção primária à saúde. AU

Association between Root Caries and Depressive Symptoms among Elders in Carlos Barbosa, RS, Brazil

Abstract The aim of this study was to evaluate the association between depressive symptoms and root caries among independent-living older persons. All community-dwelling older adults (not hospitalized and not bedridden) living in Carlos Barbosa, RS, Brazil, were invited to participate, and 785 completed the study protocol (standardized questionnaire assessing socio-demographic information and health behavior, Geriatric Depression Scale [GDS] - brief version, and oral examination [DMFT-Root index, Visible Plaque Index and stimulated salivary flow]). Out of them, 390 participants with at least one natural tooth were included in the present analysis. The outcome of interest was the ratio between the number of decayed roots and the number of roots at risk. The association between independent variables (depression and socioeconomic aspects) and the outcome was assessed using negative binomial regression models. Results: The final, fully adjusted model revealed that age (β=0.03, p=0.001), female sex (β=-0.23, p=0.08), living in a rural area (β=0.25, p=0.008), tooth brushing frequency (β=0.43, p=0.025) and stimulated salivary flow (β=-0.012, p<0.0001) were significantly associated with the presence of root caries. In addition, the interaction between male sex and the presence of depression symptoms (β=-0.99, p=0.012) was also independently and significantly associated with root caries. The interaction between male sex and depression symptoms was associated with root caries, suggesting that psychological mechanisms may be involved indirectly in the development of root caries in older adults.

Resumo O objetivo deste estudo foi avaliar a associação entre sintomas depressivos e cáries radiculares entre idosos independentes. Todos os idosos moradores da comunidade (não hospitalizados e não acamados) residentes em Carlos Barbosa, RS, foram convidados a participar, e 785 completaram o protocolo do estudo (questionário padronizado de avaliação sociodemográfica e comportamento de saúde, Escala de Depressão Geriátrica [GDS ] - versão resumida e exame oral [Índice de CPOD-Raiz, índice de placa visível e fluxo salivar estimulado]). Destes, 390 participantes com pelo menos um dente natural foram incluídos na presente análise. O desfecho foi a razão entre o número de raízes em decomposição e o número de raízes em risco. A associação entre variáveis independentes (depressão e aspectos socioeconômicos) e o desfecho foram avaliados utilizando modelos de regressão binomial negativa. O modelo final totalmente ajustado revelou que a idade (b=0,03, p=0,001), sexo feminino (b=-0,23, p=0,08), vivendo em área rural (b=0,25, p=0,008), frequência de escovação (b=0,43, p=0,025) e o fluxo salivar estimulado (b=-0,012, p<0,0001) foram significativamente associados à presença de cárie radicular. Além disso, a interação entre sexo masculino e a presença de sintomas de depressão (b=-0,99, p=0,012) também foi independente e significativamente associada com cáries radiculares. A interação entre sexo masculino e sintomas de depressão foi associada com cárie radicular, sugerindo que mecanismos psicológicos podem estar envolvidos indiretamente no desenvolvimento de cáries radiculares em adultos mais velhos.

In vitro and in situ evaluation of the effects of high-fluoride and arginine-based toothpastes to control root caries / Avaliação in vitro e in situ do efeito de dentifrícios fluoretados de alta concentração de fluoreto e a base de arginina no controle da cárie radicular

The focus of our studies has been the root substrate dentin, once root caries prevalence has been reported as increasing in part due to people living longer and maintaining their natural teeth into old age. Furthermore, this condition is highly prevalent in patients undergoing head-and-neck radiotherapy (HNR). To better understand the effect of different toothpastes in sound and non-irradiated root dentin, this research was developed in 3 parts with specific objectives, involving both in nonirradiated and irradiated substrates. In study 1, high-F toothpaste (5,000 µg F/g) associated or not with f tri-calcium phosphate (f TCP) were compared in vitro with conventional one (1,450 µg F/g) to control bovine root caries development. The study 2 was conducted to evaluate if the in vitro performance would be similar in a closer clinical situation. An in situ design was performed and the effect of high-F toothpaste combined or not with f TCP comparing to 1,450 µg F/g combined or not with argininebased toothpastes in reducing the net demineralization of sound root dentin and on the remineralization in initial artificial caries lesions was verified. In study 3, the effects of radiation exposure on human root dentin composition, structure and mechanical properties were evaluated. In the first study, our findings highlight the importance of using high-F toothpastes to prevent root caries development. In the second one, the results showed great performance of high-F toothpastes and arginine-based toothpastes, in clinical situations. The results of study 3 showed that radiation exposure changed the composition and structure of human root dentin, which may detrimentally affect its mechanical properties. Overall, the studies suggest that at high-risk population, such as elderly people and patients undergoing HNR, it is important to develop protocols to minimize damages caused by carious lesions, inhibiting the net demineralization of root caries. The current results can clarify the effects of radiation on root dentin to help further studies in this area. We also could observe that conventional toothpaste is not as effective as high-F toothpastes to prevent this condition, in non-irradiated root dentin. This knowledge is of special interest to determine the quality of life of high-risk population to dental caries presenting available tools that can be of at-home use with beneficial effects on demineralization protection and reversion.(AU)

O foco de nossos estudos tem sido o substrato dentinário radicular, uma vez que há relatos do aumento da prevalência de cárie radicular, devido principalmente ao aumento da expectativa de vida da população e a manutenção dos dentes naturais nos idosos. Além disso, essa condição é altamente prevalente em pacientes submetidos à radioterapia de cabeça e pescoço (RCP). Para melhor entendimento do efeito de diferentes dentifrícios em dentina radicular não-irradiada e irradiada, essa pesquisa foi desenvolvida em 3 partes, com objetivos específicos. No estudo 1, dentifrícios de alta concentração de F (5000 µg F/g) associado ou não com tri cálcio fosfato (f TCP) foram comparados in vitro com dentifrícios convencionais (1450 µg F/g) no controle do desenvolvimento de cárie radicular bovina. O estudo 2 foi conduzido para avaliar se os resultados do in vitro seria o mesmo diante de uma situação mais próxima da clínica. Um desenho in situ foi realizado e o efeito de dentifrício de alta concentração de F combinado ou não com f TCP e comparado com dentifrícios convencionais 1450 µg F/g combinado ou não com dentifrícios a base de arginina na redução da desmineralização de dentina radicular hígida e na remineralização de lesões cariosas previamente desenvolvidas foi avaliado. No estudo 3, os efeitos da exposição da dentina humana à radiação na sua composição, estrutura e propriedades mecânicas foram avaliados. No primeiro estudo, os resultados destacam a importância do uso de dentifrícios de alta concentração de F para prevenir o desenvolvimento de cárie radicular. No segundo, os resultados mostraram boa performance clínica dos dentifrícios de alta concentração de F e a base de arginina. O estudo 3 mostrou que a exposição à radiação altera a composição e estrutura da dentina radicular humana. De modo geral, os estudos sugerem que em população de alto risco, como os idosos e pacientes submetidos à RCP, é importante desenvolver protocolos para minimizar danos causados pelas lesões de cárie, inibindo a desmineralização líquida da cárie radicular. Os presentes resultados podem clarificar os efeitos da radiação na dentina radicular e ajudar em estudos posteriores nessa área. Também é possível observar que dentifrícios convencionais não são tão efetivos como os de alta concentração para prevenir essa condição, em dentina radicular não irradiada. Tal conhecimento é de especial interesse para garantir a qualidade de vida da população de alto risco à cárie, apresentando ferramentas disponíveis que podem ser usadas em casa com efeito benéfico na proteção da desmineralização.(AU)

Flujo salival y caries radicular en adultos mayores autovalentes / Salivary flow and root caries in the elderly living in the community

Introducción Pese al aparente rol de la saliva como protector de la caries radicular, pocos estudios han estudiado la asociación con el flujo salival. Objetivo El propósito de este estudio fue determinar si un menor flujo salival se relaciona con un aumento en la prevalencia y actividad de la caries radicular en personas mayores autovalentes. Materiales y métodos Se aplicó una encuesta sociodemográfica y se solicitó una muestra de flujo salival no estimulado y estimulado a 332 personas mayores autovalentes. Mediante un examen clínico se obtuvo la presencia y actividad de la caries radicular utilizando los criterios ICDAS y los de Ekstrand, respectivamente. Se calculó el root caries index (RCI) y el porcentaje de caries radiculares activas (% CRA). Los datos fueron analizados con el test t de Student, Anova y Kruskal Wallis, con un nivel de significación de 0,05. Resultados El flujo salival fue menor en mujeres y disminuyó con el aumento de la cantidad de fármacos y enfermedades sistémicas (p < 0,05). Ni el RCI ni el % CRA mostraron diferencias significativas en relación con el flujo salival no estimulado, pese a que ambos fueron levemente mayores en sujetos con un flujo salival estimulado normal (p < 0,05). Conclusión El flujo salival no parece asociarse numéricamente con una mayor presencia o actividad de caries radicular en adultos mayores autovalentes.

Introduction Although the role of saliva in the protection against root caries has been widely controversial, few studies have examined the association with salivary flow. Objective To determine if a decreased salivary flow is related to increased prevalence and activity of root caries in the elderly living in the community. Materials and methods A cross-sectional study was conducted on 332 elderly participants. Subjects were interviewed, completed a sociodemographic questionnaire, were orally examined, and donated a sample from unstimulated and stimulated salivary flow. Clinical examinations were carried out to assess prevalence and activity of root caries using ICDAS criteria. The Root Caries Index (RCI) and percentage of Active Root Caries (ARC) were calculated. Data were analysed using the Student t test, ANOVA and Kruskal Wallis, with a significance level of .05. Results Salivary flow was significantly lower in women and in subjects with high drug consumption and systemic diseases (P < .05). Although neither RCI nor the percentage of ARC differed in relation to unstimulated salivary flow, they were slightly higher in people with normal stimulated salivary flow (P < .05). Conclusion Salivary flow does not appear to be numerically associated with the prevalence or the activity of root caries in independent older adults.

Cárie radicular: um problema odontológico crescente e de impacto / Root caries: an increasing and striking dental problem

A cárie radicular é um problema crescente em termos epidemiológicos. Essa situação está vinculada ao envelhecimento das populações, que, a partir dos esforços preventivos da odontologia, têm chegado à terceira idade com dentes. Em períodos anteriores, os idosos apresentavam grandes perdas dentária, o que mudou substancialmente na contemporaneidade. Assim, os dentes ficam mais tempo expostos à cavidade bucal, com as eventuais consequências dessa exposição, entre as quais se inclui a doença periodontal, que tem aumentado como envelhecimento da população. Isso implica que os indivíduos mais velhos também tenham recessões gengivais, com exposição radicular, o que deixa a superfície da raiz vulnerável aos processos de cárie. Aliado a isso, o processo de envelhecimento saudável da população vem acompanhado de suas naturais consequências, assim como do incremento da prescrição medicamentosa, que, muitas vezes, está associada à redução de fluxo salivar. Tendo em vista também a maior suscetibilidade das superfícies radiculares ao desafio ácido da dieta, o consumo de carboidratos assume papel primordial no processo etiopatogênico da cárie. Por isso é importante que a odontologia esteja preparada para atuar de forma preventiva e terapêutica em relação à cárie radicular. O objetivo desta coluna é fazer uma reflexão sobre o manejo clínico da cárie radicular, para que possa não ter impactos negativos para os indivíduos e populações, que incluem perdas dentárias e de trabalhos restauradores anteriores, assim como da capacidade mastigatória e da qualidade de vida relacionada à saúde bucal...

Root caries is a growing epidemiologic problem in dental health. This condition is associated to aging of populations which, due to preventive efforts of the dental profession is getting older with teeth. In other times, elderly people presented high scores of tooth loss and this has been significantly changed contemporarily. As a consequence, teeth are exposed to the oral cavity for longer periods. Eventually, consequences such as periodontal diseases are observed, and have increased with aging of the population. Gingival recession, and exposure of the root surfaces are also observed in elderly, making roots more vulnerable to caries process. Additionally, even a healthy aging process if the population is accompanied by natural consequences, notwithstan-ding the use of medical prescriptions which, frequently, is associated to reduced salivary flow rates. Also taking into consideration the higher susceptibility of root surfaces to the acid challenge from the diet, the consumption of carbohydrate assumes a core role in the etiopathogenesis of the carious process. Therefore, it is important for the dental profession to be prepared to act both preventive as well as therapeutically in relation to root caries. The aim of this paper is to discuss the clinical management of root caries, in order to decrease potential negative effects for individuals and populations, including tooth loss, loss of existing restorations, as well as decrease of masticatory capacity and life quality...

Rehabilitación oral mediante implantes dentales en paciente con síndrome de Sjõgren / Oral rehabilitation with dental implants in patients with Sjõgren's syndrome

El Síndrome de Sjögren (SS) es una patología autoinmune caracterizada por un proceso crónico inflamatorio de las glándulas exocrinas, cuya manifestación fenotípica es la queratoconjuntivitis seca y la xerostomía, lo que trae consigo el desarrollo de caries, enfermedad periodontal e infecciones bacterianas y fúngicas. Estos pacientes presentan alto riesgo cariogénico, siendo de gran interés y preocupación en la práctica odontológica, donde el tratamiento es principalmente sintomático. El caso a presentar es de una paciente de 65 años de edad diagnosticada con SS hace 8 años; la cual presenta múltiples caries y restos radiculares en dientes mandibulares y maxilares, a la cual se indican exámenes radiográficos y médicos, se realizan exodoncias múltiples en sector inferior y en el mismo acto quirúrgico se instalan cinco implantes, se esperan tres meses para permitir la oseointegración para posteriormente rehabilitar con una prótesis sobre implantes tipo ad-modum en palafito y en el sector superior se rehabilitará con resinas compuestas previo encerado diagnóstico y prueba de Mock-up para llegar al plano oclusal y así recuperar funcionalidad y estética

Sjõgren's syndrome (SS) is an autoimmune disease characterized by a chronic inflammatory process of the exocrine glands, whose phenotypic expression is keratoconjunctivitis sicca and xerostomia, which entails the development of caries, periodontal disease and bacterial and fungal infections. These patients are at high risk cariogenic, being of great interest and concern in dental practice, where treatment is mainly symptomatic. The present case is a patient of 65 years of age diagnosed with SS 8 years; which has multiple cavities and root fragments in mandibular teeth and jaws, which radiographic examinations anddoctors indicated, multiple extractions are performed in lower sector and in the same operation five implants are installed, three months are expected to allow osseointegration to further rehabilitate a prosthesis implantsad modum type on stilts and in the upper section will be rehabilitated with wax composites prior diagnosisand test mock up to reach the occlusal plane and recover functionality and aesthetics...

Clinical outcome of root caries restorations using ART and rotary techniques in institutionalized elders

Abstract The aim of this study was to compare the clinical performance of root caries restorations after a six-month period using two methods, a conventional technique with rotary instruments and an atraumatic restorative technique (ART), in an institutionalized elderly population in the city of Bogotá, Colombia. Root caries represents a multifactorial, progressive, chronic lesion with softened, irregular and darkened tissue involving the radicular surface; it is highly prevalent in the elderly, especially in those who are physically or cognitively impaired. A quasi-experimental, double-blind, longitudinal study was carried out after cluster randomization of the sample. Two different experienced dentists, previously trained, performed the restorations using each technique. After six months, two new investigators performed a blind evaluation of the condition of the restorations. The results showed a significantly higher rate of success (92.9%) using the conventional technique (p < 0.03). However, we concluded that ART may have been the preferred technique in the study population because 81% of those restorations survived or were successful during the observation period.