Long-term effect of firing protocols on surface roughness and flexural strength of lithium disilicate glass-ceramic

Abstract This study evaluated the effect of different firing protocols on the surface roughness and flexural strength of CAD/CAM lithium disilicate glass-ceramic (LD) after aging methods. Forty-two LD bars of 16 x 4 x 2 mm (IPS e-max CAD, Ivoclar) were randomly separated into two groups according to firing protocols: Single firing-Staining, glazing, and crystallization in a single step; Multiple firings-Crystallization+First staining+Firing+Second staining+Firing+Glazing+Firing. After protocols, initial surface roughness readings were taken (Surfcorder SE1700, Kosakalab). Samples were then randomly separated into three groups (n=7) according to the aging methods they were submitted: Thermomechanical cycling (TMC, ER System, Erios, 1,200,000 cycles, 0.3 MPa, 2 Hz and 5°C/37°C/55°C, 30 s swell time); Simulated toothbrushing (STB, Pepsodent, MAVTEC, 73,000 cycles), and Control (no aging). Final surface roughness readings were done, and samples were submitted to a three-point bending test (OM100, Odeme Dental Research) and fractographic analysis by scanning electron microscopy (EVO-MA10, ZEISS). Data were analyzed (2-way ANOVA, (α=.05). There was no difference (p>.05) in the flexural strength between the firing protocols, regardless of the aging method. STB decreased the flexural strength of samples submitted to multiple firings, different from control (p<.05). Without aging (Control), before TMC, and after STB, LD had lower surface roughness when submitted to multiple firings than to single firing (p<.05). The firing protocols did not affect the flexural strength or the surface roughness of the lithium disilicate glass-ceramic, even after aging. However, toothbrushing negatively affected the flexural strength and smoothed the surface of the ceramic submitted to multiple firings.

Resumo Este estudo avaliou o efeito de diferentes protocolos de queima na rugosidade de superfície e resistência à flexão de uma cerâmica vítrea de dissilicato de lítio (DL) para CAD/CAM, após métodos de envelhecimento. Quarenta e dois barras de DL (IPS e-max CAD, Ivoclar) de 16 x 4 x 2 mm foram separadas aleatoriamente em dois grupos de acordo com os protocolos de queima: Single firing-Pigmentação, glazeamento e cristalização em única etapa. Multiple firings-Cristalização+Primeira camada do pigmento+Queima+Segunda camada do pigmento+Queima+Glazeamento+Queima. Após os protocolos, foram realizadas leituras iniciais de rugosidade de superfície (Surfcorder SE1700, Kosakalab). As amostras foram então separadas aleatoriamente em três grupos (n=7) segundo o método de envelhecimento a que foram submetidas: Ciclagem termomecânica (CTM, Sistema ER, Erios, 1.200.000 ciclos, 0.3 MPa, 2 Hz e 5°C/37°C/55°C, 30 s de imersão), Escovação simulada (ES, Pepsodent, MAVTEC, 73.000 ciclos) e Controle (sem envelhecimento). Leituras finais de rugosidade foram realizadas, e as amostras foram submetidas ao ensaio de resistência à flexão em três pontos (OM100, Odeme Dental Research) e à análise fractográfica por microscopia eletrônica de varredura (EVO-MA10, ZEISS). Os dados foram analisados (ANOVA de dois fatores, (α=.05). Não houve diferença (p>.05) na resistência à flexão entre os protocolos de queima, independente do envelhecimento. ES diminuiu a resistência à flexão das amostras submetidas a multiple firings, diferente do controle (p<.05). Sem envelhecimento (Controle), antes da CTM e após ES, LD apresentou menor rugosidade de superfície quando submetido a multiple firings do que a single firing (p<.05). Os protocolos de queima não afetaram a resistência à flexão nem a rugosidade de superfície da cerâmica vítrea de dissilicato de lítio, mesmo após envelhecimento. No entanto, a escovação afetou negativamente a resistência à flexão e poliu a superfície da cerâmica submetida a multiple firings.

Patrón inflamatorio de las vías aéreas en pacientes fumadores con enfermedad pulmonar obstructiva crónica / Inflammatory pattern of the airways in COPD smokers

Introducción: La enfermedad pulmonar obstructiva crónica cursa con un patrón inflamatorio en la vía aérea que incluye neutrófilos, macrófagos, linfocitos, los cuales se pueden obtener mediante un cepillado bronquial citológico. Objetivos: Identificar patrón inflamatorio según células inflamatorias presentes en la vía aérea, mediante el cepillado bronquial citológico e índice tabáquico de paquetes/año en pacientes con enfermedad pulmonar obstructiva crónica. Métodos: Se realizó un estudio descriptivo transversal en pacientes con enfermedad pulmonar obstructiva crónica, que concurrieron al Hospital Neumológico Benéfico-Jurídico, en el período comprendido de junio de 2018 a junio de 2019, con indicación para la realización de fibrobroncoscopía con cepillado bronquial. Resultados: El 53,1 por ciento de los pacientes corresponden al sexo masculino. Un 46,1 por ciento presentó un índice tabáquico de paquetes/año entre 21-40. Predominaron las criptas y estrías como hallazgos broncoscópicos con un 51 por ciento y 40,8 por ciento respectivamente en pacientes con índice paquetes/año mayor que 40. De los pacientes con índice paquetes/año mayor de 40 (13 para un 26,5 por ciento) presentaron hiperplasia de células basales. El 46,9 por ciento de los pacientes presentaron un patrón inflamatorio neutrofílica. Conclusiones: Se identificaron a los pacientes con EPOC que presentaron patrón inflamatorio neutrofílica en la vía aérea y elevado índice tabáquico y desde el punto de vista broncoscópico tienen varios hallazgos que sugieren cronicidad(AU)

Introduction: Chronic obstructive pulmonary disease presents with an inflammatory pattern in the airway that includes neutrophils, macrophages, and lymphocytes, which can be obtained by cytological bronchial brushing. Objectives: To identify inflammatory pattern according to inflammatory cells present in the airway, through cytological bronchial brushing and smoking rate of packs/year in patients with chronic obstructive pulmonary disease. Methods: A cross-sectional descriptive study was carried out in patients with chronic obstructive pulmonary disease, who attended Benefico-Jurídico Pneumological Hospital, from June 2018 to June 2019, with an indication for fiberoptic bronchoscopy with bronchial brushing. Results: 53.1percent of the patients correspond to the male sex. 46.1percent ad a smoking rate of packs/year between 21-40. Crypts and striae predominated as bronchoscopic findings with 51percent and 40.8percent respectively in patients with a pack/year index greater than 40. Patients with a pack/year index greater than 40 (13 for 26.5percent) showed basal cell hyperplasia. 46.9percent of the patients had a neutrophilic inflammatory pattern. Conclusions: Patients with COPD who had a neutrophilic inflammatory pattern in the airway and high smoking index were identified, and from the bronchoscopic point of view they have several findings that suggest chronicity(AU)

Effectiveness of “Oral Health Care for Children with Autism Spectrum Disorder Module” in Improving Tooth-Brushing Practice among Children with Autism Spectrum Disorder in Hospital Universiti Sains Malaysia

@#Introduction: Autism spectrum disorder (ASD) is associated with behavioural problems which may affect children’s oral health statuses. Caregivers have crucial roles in caring for these children’s oral health. Thus, this study is aimed to evaluate the effectiveness of the Oral Health Care for Children with ASD (OHASD) Module in improving caregivers’ tooth-brushing difficulties in children ASD. Methods: Quasi-experimental study on caregivers of children with ASD aged 7 to 12 years who were registered at the Psychiatry Clinic Hospital Universiti Sains Malaysia (USM), Kelantan. The sociodemographic data obtained, and behavioural problems were assessed. Tooth-brushing difficulties were evaluated at pre- and six months post-intervention using OHASD Module. Data were analysed using IBM SPSS 26.0. Results: A total of 32 Malay children with ASD including their caregivers participated in this study. Caregivers were mostly mothers (78.1%) and children were mostly boys (84.4%), with mean age (SD) of 39.1 (4.19) and 8.8 (1.52) years respectively. Parent-reported questionnaire using the Modified Checklist for Autism in Toddlers (M-CHAT) showed 65.6% of children were highly sensitive to noises, 53.1% sometimes stared at nothing or wandered without purpose and 59.4% were unable to imitate caregivers’ faces. Significant differences between pre- and post-intervention for items; children who liked to close their mouths, turn their heads in different directions, did not understand the purpose of tooth-brushing (P<0.05). Conclusion: OHASD Module is useful in assisting caregivers in practising daily tooth-brushing of children with ASD.

Relación de la condición bucal y el desarrollo psicomotor en niños de 6 y 7 años / Relationship between oral condition and psychomotor development in children aged 6 and 7 years

Introducción: La salud oral es un problema actual en la sociedad, las medidas preventivas como técnicas de cepillado deben de ser acorde a la destreza motriz. Objetivo: Evaluar la relación entre las condiciones bucales y el desarrollo psicomotor en los niños de 6 y 7 años. Métodos: La muestra estuvo conformada por 30 niños en el rango de edad de 6 y 7 años, que acuden al colegio "Manuel Bonilla" (Lima, Perú). Estuvo dividida por 2 grupos, a los cuales se les enseñó dos técnicas de cepillado: técnica de Bass modificada y técnica de Fones. Se obtuvieron valores de condiciones bucales, según los niveles de índice gingival, índice de higiene y el nivel de severidad. Por otro lado, se adquirieron los niveles de psicomotricidad, evaluados mediante el test de Bruininks-Oseretsky. El análisis de los datos estadísticos se ejecutó con el programa SPSS y R. Resultados: Un grupo de 29 niños se incorporaron en la muestra y fueron analizados un total de 631 dientes. Los resultados demostraron una asociación positiva con un solo rango (índice de sangrado gingival) de condiciones bucales y aspectos psicomotores de niños entre 6 y 7 años. Adicionalmente, se encontró una asociación positiva entre la técnica de cepillado Bass Modifica y condiciones bucales óptimas. Conclusiones: Los resultados actuales sugieren una asociación marginal entre las variables estudiadas, que puede ser potencialmente más significativa con una ampliación sobre el número de muestra. A medida que el ser humano va desarrollando nuevas habilidades motoras, debería de tener un mejor dominio sobre las necesidades básicas de salud como la ponderación de una buena higiene bucal. Por lo tanto, es necesario recomendar técnicas de cepillado de acuerdo al nivel de desarrollo psicomotor del niño(AU)

Introduction: Oral health is a current problem in society; preventive measures such as brushing techniques must be according to motor skills. Objective: Evaluate the relationship between oral conditions and psychomotor development in children aged 6 and 7 years. Methods: The sample consisted of 30 children in the age range of 6 and 7 years, who attend "Manuel Bonilla" school (Lima, Peru). It was divided by 2 groups, which were taught two brushing techniques: Bass-modified technique and Fones technique. There were obtained values of oral conditions, according to the levels of gingival index, hygiene index and the level of severity. On the other hand, the levels of psychomotricity were acquired, evaluated by the Bruininks-Oseretsky test. The analysis of the statistical data was executed with the SPSS and R program. Results: A group of 29 children were incorporated into the sample and a total of 631 teeth were analyzed. The results demonstrated a positive association with a single range (gingival bleeding index) of oral conditions and psychomotor aspects of children between 6 and 7 years. Additionally, a positive association was found between the Bass Modifica brushing technique and optimal oral conditions. Conclusions: The current results suggest a marginal association between the variables studied, which may be potentially more significant with an increase in the sample number. As humans develop new motor skills, they should have a better command of basic health needs such as weighing good oral hygiene. Therefore, it is necessary to recommend brushing techniques according to the level of psychomotor development of the child(AU)

Dental anxiety and its influencing factors among pregnant women in Shanghai / 口腔疾病防治

Objective @#To investigate the incidence of dental anxiety in pregnant women and its influencing factors. @*Methods @# A total of 2 638 pregnant women in Shanghai were included in this study. Data on demographic and social factors, oral health behaviors and the number of teeth were collected. Participants completed the modified dental anxiety scale (MDAS), and an MDAS score greater than 12 was defined as a dental anxiety disorder. An electronic data capture system (EDC) was used to establish a database, and SPSS 22.0 was used to analyze the degree of anxiety and its influencing factors.@*Results@# A total of 2 638 valid questionnaires were received. The incidence of dental anxiety in pregnant women was 34.9%. The results of a univariate analysis showed that the prevalence of dental anxiety in pregnant women (P<0.001) and MDAS score decreased (P<0.05) with increasing age, annual family income, educational level, frequency of cleaning, frequency of brushing and number of teeth. Conversely, the prevalence of dental anxiety in pregnant women (P<0.05) and MDAS score increased (P<0.05) as the number of pregnancies and gingival bleeding increased. Logistic analysis showed that education level “college” (P = 0.003) and “bachelor and above” (P<0.001), frequency of dental cleaning “semiannually or annually” (P = 0.021) and “biennial” (P<0.001), and frequency of brushing “twice a day” (P<0.001) were significantly associated with dental anxiety in pregnant women and were protective factors (OR<1). The frequency of gingival bleeding “Sometimes”(P<0.001) and the number of teeth “≤ 27” (P<0.001) were also significant risk factors for dental anxiety in pregnant women (OR>1).The results of a negative binomial regression analysis of MDAS showed that the frequency of dental cleaning and the number of teeth were significantly associated with dental anxiety. The frequency of dental cleaning "semiannually or annually" (P<0.001) was a protective factor (OR<1) for pregnant women's dental anxiety. The number of teeth ≤27 (P<0.001) was a risk factor (OR>1) for dental anxiety in pregnant women.@*Conclusion@#Educational level, teeth cleaning frequency, teeth brushing frequency, gingival bleeding, and the number of teeth influence dental anxiety in pregnant women. To effectively reduce the prevalence of dental anxiety, dentists should attach great importance to it in clinical practice and enhance pregnant women's awareness of oral hygiene maintenance by disseminating relevant health care knowledge.

Agentes e métodos de descontaminação das escovas dentais - Uma revisão sistemática / Decontamination agents and methods of toothbrushes - A systematic review

Objetivo: Realizar uma revisão sistemática para avaliar os principais agentes e métodos de descontaminação das escovas dentais contra vírus, bactérias e fungos encontrados na literatura. Métodos: Foi realizada uma busca nas bases de dados LILACS® (Literatura científica e técnica da América Latina e Caribe/BVS ­ Biblioteca Virtual em Saúde), MEDLINE® (Medical Literature Analysis and Retrieval System Online / PubMed)®, EMBASE® (Elsevier), em agosto de 2020. Como critério de inclusão, foram selecionados artigos publicados entre os anos de 2010 e 2020, nos idiomas português, inglês e espanhol, estudos de ensaios clínicos controlados randomizados, ensaios clínicos não randomizados e estudos in vitro, que avaliaram diferentes agentes e métodos de descontaminação das escovas dentais. Resultados: Foram recuperados um total de 2523 artigos, sendo qualificados para o estudo um total de 6 artigos "in vivo" e 4 "in vitro". O agente de descontaminação mais estudado e eficaz foi a clorexidina 0,12% (em forma de imersão ou spray), seguida pelo hipoclorito de sódio 1% e 2,5% (imersão), vinagre branco 50% (imersão), solução de cloreto de cetilpiridínio (imersão ou spray), micro-ondas e máquina de lavar-louças. Conclusão: Considerando as evidências de qualidade encontradas, a clorexidina 0,12% constitui o agente mais estudado e eficaz, seguido pelo hipoclorito de sódio 1 % e cloreto de cetilpiridínio, utilizados em forma de spray ou imersão, constituem soluções eficazes, de fácil acesso, que podem ser utilizadas pela população para descontaminação das escovas dentais.

Aim: To carry out a systematic review of articles found in the literature in order to evaluate the main agents and methods for decontaminating toothbrushes against viruses, bacteria, and fungi. Methods: A search was performed in LILACS® (Scientific and Technical Literature of Latin America and the Caribbean/VHL ­ Virtual Health Library), MEDLINE® (Medical Literature Analysis and Retrieval System Online /PubMed)®, and EMBASE® databases (Elsevier), in August 2020. As inclusion criteria, articles published between 2010 and 2020, in Portuguese, English, and Spanish, studies of randomized controlled clinical trials, non-randomized clinical trials, and in vitro studies were selected, which evaluated different agents and methods for decontaminating toothbrushes. Results: A total of 2,523 articles were retrieved, with a total of 6 in vivo and 4 in vitro articles deemed to be eligible for the study. The most studied and effective decontamination agent was 0.12% chlorhexidine (in immersion or spray form), followed by 1% and 2.5% sodium hypochlorite (immersion), 50% white vinegar (immersion), solution of cetylpyridinium chloride (dip or spray), microwave, and dishwasher. Conclusion: Considering the quality evidence found, 0.12% chlorhexidine is the most studied and effective agent, followed by 1% sodium hypochlorite and cetylpyridinium chloride, used in spray or immersion form; these are effective, easily accessible solutions that can be used by the population to decontaminate toothbrushes.

Hygiène bucco-dentaire des militaires des unités d'élites des forces de défense et de sécurité du Mali / Oral hygiene of the military of the elite units of the defense and security forces of Mali

Introduction: L'hygiène orale représente l'ensemble des mesures prises pour garder la cavité́ orale propre et saine en maintenant les surfaces dentaires dépourvues de plaque et de tartre. L'objectif de cette étude était d'évaluer l'hygiène buccodentaire des Unités d'Élites des forces de défense et de sécurité du Mali. Méthodologie : Il s'agissait d'une étude transversale descriptive qui s'est déroulée du 01 Septembre 2020 au 30 Aout 2021 dans le service d'Odontologie de l'Infirmerie Hôpital de Bamako (IHB). La population d'étude était constituée de militaires en service dans les différentes Unités d'Élites des corps d'Armée du Mali venus en consultation dans le service d'Odontologie et par d'autres Unités dans leur Quartier Général (QG) compte tenu de leur confidentialité. Résultats : Dans cette étude, la tranche d'âge 30 ­ 39 ans était la plus représentée avec 49,2%. Les sous-officiers étaient les plus représentés avec 55,0%. Parmi les Unités d'Élites, la CIR représentait 34,8%. Pour le brossage des dents, 85,9% se brossaient les dents. Par rapport au nombre de brossage par jour, 54,7% se brossaient les dents 1 fois par jour. Tandis que 48,1% se brossaient les dents avec une brosse de type Medium. Pour le saignement après le brossage, 42,6% avaient un saignement après le brossage. Conclusion: Cette étude a montré que les militaires avaient une connaissance sur l'hygiène buccodentaire car ils se brossaient majoritairement 1 à 2 fois par jour. Toutefois, beaucoup de militaires présentaient un saignement après brossage. Devant cette situation, une nouvelle orientation de la politique de santé bucco-dentaire basée sur l'odontologie préventive s'impose afin d'améliorer la santé et la qualité́ de vie de ces militaires

Introduction: Oral hygiene represents all the measures taken to keep the oral cavity clean and healthy by keeping the dental surfaces free of plaque and tartar. The objective of this study was to evaluate the oral hygiene of elite units of the defense and security forces of Mali. Methodology: This was a descriptive cross-sectional study that took place from September 01, 2020, to August 30, 2021, in the odontology department of Bamako Military Hospital. The study population involved soldiers of various Elite Units of the Armed Forces of Mali who came for consultation in the odontology service. Results: In this study, the 30-39 age group was the most represented with 49.2%. NCOs were the most represented with 55.0%. Among Elite Units, the CIR accounted for 34.8%. For tooth brushing, 85.9% brushed their teeth. Regarding the number of brushings per day, 54.7% brushed their teeth once a day. While 48.1% brushed their teeth with a medium brush. For bleeding after brushing, 42.6% had bleeding after brushing. Conclusion: This study showed that the military had knowledge of oral hygiene because they brushed mostly 1 to 2 times a day. However, many soldiers had bleeding after brushing. Faced with this situation, a new orientation of the oral health policy based on preventive odontology is necessary in order to improve the health and quality of life of these soldiers

La higiene bucal en pacientes con tratamiento de Ortodoncia / Oral hygiene in patients with orthodontic treatment

RESUMEN Fundamento: Los pacientes con tratamiento de ortodoncia presentan alteraciones por la acumulación de placa que provoca los aparatos, lo que requiere de mayor control de la higiene bucal. Objetivo: Profundizar en los criterios actuales sobre la higiene bucal en pacientes con tratamiento de ortodoncia para mantener su salud bucal. Desarrollo: Se realizó una búsqueda bibliográfica en las bases de datos biomédicas: PubMed, Cochrane, Scopus, Ebsco, Cumed y Lilacs. De 86 artículos científicos se seleccionaron los 39 de mayor actualización. Se constataron las particularidades de la higiene bucal durante el tratamiento con aparatos fijos de ortodoncia, la existencia del Índice de placa de ortodoncia como índice ajustado para estos pacientes, los procedimientos para el control de la placa bacteriana, la relación entre el uso de aparatos y el pH salival, así como la importancia de la educación para la salud para aumentar la motivación de los pacientes hacia la higiene bucal. Conclusiones: La higiene bucal es el factor más importante en el mantenimiento de la salud periodontal y la prevención de caries dental durante el tratamiento de ortodoncia. Se requiere de la orientación por parte de los profesionales para motivar a los pacientes mediante la promoción y prevención de salud bucal.

ABSTRACT Background: Patients with orthodontic treatment present alterations due to the plaque addition caused by the appliances, which requires greater control of oral hygiene. Objective: To delve into the current criteria on oral hygiene in patients with orthodontic treatment to maintain their oral health. Development: A bibliographic search was conducted in biomedical databases: PubMed, Cochrane, Scopus, Ebsco, Cumed and Lilacs. Out of 86 scientific articles, the 39 most updated were selected. The accuracies of oral hygiene during the treatment with fixed orthodontic appliances, the existence of the Orthodontic Plaque Index as an adjusted index for these patients, the procedures for bacterial plaque control, the relationship between the use of appliances and salivary pH, as well as the importance of health education to increase patients' motivation towards oral hygiene were ascertained. Conclusions: Oral hygiene is the most important factor to preserve periodontal health and prevent dental caries during orthodontic treatment. Guidance by professionals is required to motivate patients through oral health promotion and prevention.

La higiene oral y los efectos de la terapia periodontal mecánica / Oral hygiene and effects of mechanical periodontal therapy

Introducción: Las enfermedades periodontales junto con la caries dental son las patologías más frecuentes que afectan los dientes y tejidos circundantes. El principal agente etiológico es el acúmulo de biopelícula dental bacteriana ya sea en las fosas y fisuras de los dientes como en el surco gingival. Objetivo: La presente revisión narrativa tuvo por objetivo sintetizar los resultados de la terapia mecánica sobre la higiene oral al ser indicadas en pacientes con diagnóstico de periodontitis. Material y Métodos: Se realizó un estudio descriptivo que se basó en una revisión crítica de las publicaciones relacionadas a la terapia periodontal mecánica en las bases de datos: Scopus, SciELO (Scientific Electronic Library Online), MEDLINE (Pubmed), ScienceDirect así como el buscador Google académico. En cada base de datos se realizó una búsqueda libre de la información con un límite de 10 años de antigüedad de las fuentes de información para analizar tanto fuentes antiguas como actuales. Resultados: De una búsqueda inicial de 678 artículos se incluyeron 52 estudios que compararon técnicas de higiene oral, así como revisiones sistemáticas que sintetizaron el efecto de la terapia mecánica periodontal. Conclusiones: El tratamiento periodontal debe ser considerado la terapia inicial para la periodontitis, debe incluir instrucción en técnicas de higiene para el control de la biopelícula dental y el debridamiento mecánico de las zonas afectadas. No se ha demostrado que una técnica de cepillado manual específica sea superior a otras, por tanto, se debería aplicar aquella que mejor pueda manejar el paciente. No se encontró evidencia que demuestre que el uso del hilo dental disminuya eficientemente los índices de biopelícula dental y parámetros gingivales debido a la dificultad por parte del paciente para emplear adecuadamente la técnica(AU)

Introduction: Periodontal diseases together with dental caries are the most frequent pathologies affecting the teeth and surrounding tissues. The main etiological agent is the accumulation of bacterial dental biofilm in the pits and fissures of the teeth and the gingival sulcus. Objective: The present narrative review aimed to synthesize the results of mechanical therapy on oral hygiene when it is indicated in patients with the diagnosis of periodontitis. Material and methods: A descriptive study was conducted. It was based on a critical review of some articles related to mechanical periodontal therapy published in databases such as Scopus, SciELO (Scientific Electronic Library Online), PubMed/ MEDLINE and ScienceDirect. Google search engine was also used. A free search for information was carried out in each database. An age limit of 10 years was established for the analysis of both old and current sources. Results: The initial search included 678 articles. Of these, 52 studies that compared oral hygiene techniques as well as systematic reviews that synthesized the effect of mechanical periodontal therapy were included. Conclusions: Periodontal treatment should be considered as the initial therapy for the treatment of periodontitis. It should include oral hygiene instructions for the control of dental biofilm and mechanical debridement of the affected areas. A specific manual brushing technique has not been proven to bebetter than others; therefore, the one that can best be performed by the patient should be used. There was no proven evidence that effective flossing reduces dental biofilm indexes and gingival parameters due to the patient difficulty to adequately perform the technique(AU)

The effectiveness of apple, sugar-free chewing gum, Rolly Brush® and tooth brushing in the reduction of plaque index: Crossover randomized clinical trial

Background: The implementation of the self-cleaning practice is of fundamental importance for the maintenance of oral health and to remove the human dental biofilm which is considered the main etiological factor for the development of caries and periodontal diseases. Objective: This study aimed to evaluate the use of chewing gum, Rolly Brush® and apples as forms of mechanical control and removal of the dental biofilm in the absence of brushing. Materials and Methods: Eighteen volunteers were submitted to plaque index evaluation after a period of 24 hours of no oral hygiene. Then, they would use one of the methods: chewing gum, Rolly Brush®, apple or tooth brushing, chosen by a draw, for one minute, and then, plaque index was evaluated again. This stage was repeated until all participants were submitted to all selected methods, in periods of 24 hours each. Results: Dental brushing was more effective when compared to each of the other methods applied and there was a statistically significant reduction of dental plaque index after apllying all methods of cleaning in all groups. Conclusion: Chewing gum, Rolly Brush® and apple may be used as auxiliary to dental brushing or when such method is impossible to be performed. Clinicaltrials.gov: number of protocol NCT 03.601.585.

Fundamento: A implementação da prática de autolimpeza é de fundamental importância para a manutenção da saúde bucal e remoção do biofilme dental humano que é considerado o principal fator etiológico para o desenvolvimento de cáries e doenças periodontais. Objetivo: Este estudo teve como objetivo avaliar a utilização de goma de mascar, Rolly Brush® e maçã como formas de controle mecânico e remoção do biofilme dental na ausência de escovação. Materiais e Métodos: Dezoito voluntários foram submetidos à avaliação do índice de placa após um período de 24 horas sem higiene bucal. Em seguida, utilizariam um dos métodos: goma de mascar, Rolly Brush®, ingerir uma maçã e escovar os dentes, escolhida por sorteio, por um minuto, e então, o índice de placa era novamente avaliado. Essa etapa foi repetida até que todos os participantes fossem submetidos a todos os métodos selecionados, em períodos de 24 horas cada. Resultados: A escovação dentária foi mais eficaz quando comparada a cada um dos outros métodos aplicados e houve redução estatisticamente significativa do índice de placa dentária após a aplicação do método de limpeza em todos os grupos. Conclusão: Goma de mascar, Rolly Brush® e maçã podem ser utilizados como auxiliares da escovação dentária ou quando tal método for impossível de ser realizado. Clinicaltrials.gov: Número do protocolo NCT 03.601.585.

The primary investigation and experiment of a community-based family dentist model for children aged 1-3 years old in Wuhan / 口腔疾病防治

Objective @#To explore the effect of a community family doctor model on caries management for children aged 1 to 3 years in Wuhan, and to provide basis for community prevention and control of children’s caries.@*Methods@#Using stratified randomization and paired sampling, 1 000 children aged 1 to 3 years were selected from the core community of the Wuhan Donghu High-tech Zone. The trial group was followed up 4 times a year at home or in the clinic, and the control group was followed up only at the baseline and the endpoint (2 years later). Caries and caries status were examined at baseline and 2 years later, and brushing behavior was investigated by questionnaire. @* Results @#The prevalence/dmft in the test group and control group after two years were 15.8%/1.41 and 46.6%/3.25, respectively, and the difference was statistically significant. The frequency with which parents helped their children to brush in the test group improved significantly compared to that of the control group.@* Conclusion @#For children aged 1 to 3 years, the dental family doctor model of caries prevention is economical and effective, and its application and promotion are recommended.

Combination of toothbrushing and chlorhexidine compared with exclusive use of chlorhexidine to reduce the risk of ventilator-associated pneumonia: A systematic review with meta-analysis

This study aimed to compare the effectiveness of 0.12% chlorhexidine alone and 0.12% chlorhexidine in combination with toothbrushing to prevent ventilator-associated pneumonia (VAP) in mechanically ventilated patients. The Embase, Latin American and Caribbean Health Science Literature, PubMed, Scientific Electronic Library Online, Scopus, LIVIVO, Web of Science, Cochrane Library, OpenThesis, and Open Access Thesis and Dissertations databases were used. Only randomized controlled trials without restrictions on the year or language of publication were included. Two reviewers assessed the risk of bias using the Joanna Briggs Institute Critical Appraisal Tool. A meta-analysis using a random-effects model estimated the combined relative risk (RR). The Grading of Recommendations, Assessment, Development and Evaluations approach was used to assess the certainty of the evidence. Initially, 2,337 studies were identified, of which 4 were considered in the systematic review and 3 in the meta-analysis (total sample: 796 patients). The studies were published between 2009 and 2017. All eligible studies had a low risk of bias. The meta-analysis revealed that the risk of VAP was 24% lower in patients receiving chlorhexidine combined with toothbrushing than in those receiving chlorhexidine alone (RR: 0.76; 95% confidence interval: 0.55-1.06), with moderate certainty of evidence and without statistical significance. In conclusion, considering the limitations of this study, a standard protocol for the prevention of VAP is not yet recommended. More studies with larger sample sizes are needed to draw strong conclusions. However, considering that toothbrushing is a simple intervention, it should be a common practice in mechanically ventilated patients, especially among patients with coronavirus disease.

Eficacia del uso de un enjuague con aceites esenciales para el control del biofilm dental / Efficacy of the use of a rinse with essential oils for the control of dental biofilm

Introducción: Se ha documentado que, para tener mejores resultados en el control del biofilm oral, es necesario el uso de controles químicos, antes o después del cepillado dental. Entre éstos, encontramos los enjuagues de aceites esenciales. Objetivo: Determinar la actividad del enjuague con aceites esenciales antes o después del cepillado, en el control del biofilm dental. Material y métodos: El estudio se realizó con 27 voluntarios. Los participantes fueron seleccionados y agrupados. El grupo 1 fue el control, que empleó su técnica de cepillado habitual y dos grupos experimentales que, además del cepillado con dentífrico, usaron un enjuague de aceites esenciales durante ocho días, ya sea antes (grupo 2) o después del cepillado dental (grupo 3). La cuantificación del número de superficies teñidas en los tres grupos, tanto el estado inicial como posterior al uso de los enjuagues, se hizo con el índice de O'Leary y un revelador de placa tritonal, el cual permitió la observación del biofilm de forma clínica, así como su grado de patogenicidad. Resultados y conclusión: El análisis estadístico estableció que no existe diferencia significativa entre no usar y usar el enjuague con aceites esenciales antes o después del cepillado (AU)

Introduction: It has been documented that, to have better results in the control of oral biofilm, it is necessary to use chemical control, before or after tooth brushing. Among these, we find the essential oil rinses. Objective: To determine the activity of the rinse with essential oils before or after brushing, in the control of the dental biofilm. Material and methods: The study was conducted with 27 volunteers. The participants were selected and grouped. Group 1 was the control, which used its usual brushing technique and two experimental groups that, in addition to brushing with toothpaste, used a mouthwash of essential oils, for eight days, either before (group 2) or after tooth brushing (group number 3). For the quantification of the number of stained surfaces in the three groups, to record both the initial and subsequent state of the use of the rinses, it was done with the O'Leary index and a tritonal developer, which allowed the observation of the biofilm of clinical form, as well as its degree of pathogenicity. Results and conclusion: The statistical analysis established that there is no significant difference between not using and using the rinse with essential oils before or after brushing (AU)

Eficacia en la remoción del biofilme dental con diferentes aditamentos durante la profilaxis dental en pacientes pediátricos / Effectiveness of dental biofilm removal with different accessories during dental prophylaxis in pediatric patients

Resumen En odontología pediátrica un procedimiento sencillo y que es eficaz para introducir al niño al ambiente del consultorio dental es la profilaxis dental, y a la vez es indispensable para la remoción del biofilme dental a escala profesional. Se analizaron tres de los aditamentos más utilizados, la copa de hule, el cepillo para profilaxis convencional y el microcepillo ICB, este último para reforzar superficies oclusales con el objetivo de conocer cuál presenta una mayor efectividad en la remoción, se utilizó el cepillo dental convencional como control. Como resultado se observó que el cepillo para profilaxis es el aditamento de mayor eficacia en la remoción del biofilm dental en todas las superficies, con un porcentaje de remoción total de 70,57% con diferencia estadísticamente significativa respecto a los demás aditamentos.

Abstract In pediatric dentistry, a simple procedure that is effective to introduce the child to the environment of the dental office is dental prophylaxis, at the same time it is indispensable for the removal of the dental biofilm at a professional level. Three of the most frequently used additives, the rubber cup, the conventional prophylaxis brush and the ICB microbrush were analyzed, the latter to reinforce occlusal surfaces in order to know which one has a greater effectiveness in the removal, the conventional toothbrush as control. As a result, the prophylaxis brush is the most effective additive in the removal of dental biofilm on all surfaces, with a total removal percentage of 70.57%, with a statistically significant difference with respect to the other accessories.

Resumo Em odontologia pediátrica é um procedimento simples que é eficaz para introduzir a criança para o ambiente de escritório dental é profilaxia dentária, embora seja essencial para a remoção do biofilme dental profissionalmente. Três dos adjuvantes mais vulgarmente utilizados foram analisados, a taça de borracha, o convencional profilaxia e ICB microbrush última escova de reforçar superfícies de oclusão, a fim de saber qual tem uma remoção mais eficaz, a escova de dentes convencional é utilizada como controlo. A profilaxia escova resultante é a remoção mais eficaz de biofilme em todas as superfícies, com uma percentagem de remoção total de 70,57%, com diferen estatisticamente significativa relativamente aos outros adjuntos.

A Comparative Study of Bronchial Washing and Brushing, with Bronchial Biopsy

Lung cancer is the most common cancer around the world and is associated with significant mortality. Smoking is the most important risk factor. Screening and early diagnosis has significant role in initiating treatment and reducing mortality rates. Also, definite histological subtyping is mandatory for newer therapeutic strategies. Over the past decades, screening for lung cancer has evolved with the advent of bronchoscopy and cytological evaluation. Even though various biomarkers of lung cancer are in study, cytological evaluation of bronchial brushing and washing has become a useful and cost-effective screening method for lung cancer and is widely used all around the world.METHODSIt was a comparative cross-sectional study conducted in the Department of Pathology, Government Medical College, Thrissur, from 1-1-2017 to 30-6-2018. Bronchial washing and brushing specimens received along with biopsy, which are suspicious for bronchogenic carcinoma were included in the study. Sample size was 82. Cytological smears are stained with Giemsa staining and Papanicolaou’s staining. Biopsy specimens are stained with haematoxylin and eosin staining after processing.RESULTSMajority of patients were in the age group of 60 – 79 years (75.6%), and mean age was 64.14 years. Cigarette smoking was seen in 55 patients (67.1%). Out of the 82 cases, 46 cases (56%) were squamous cell carcinoma, 14 cases (17%) were adenocarcinoma, 15 cases (18.3%) were non-small cell carcinoma- NOS, 7 cases (8.6%) were small cell carcinoma. Positivity rates for malignancy with brushing was 52.4%, washing 19.5% and combined 54.9%. Bronchial brushing had a sensitivity of 19.6% in squamous cell carcinoma, 28.6% in adenocarcinoma, 26.7% in non-small cell carcinoma (NSCLC)-NOS, 28.6% in small cell carcinoma (SCLC). Compared to bronchial brushing, the sensitivity of bronchial washing was lower and combination of washing with brushing yielded no additive effects except in adenocarcinoma cases.CONCLUSIONSAmong routinely employed cytological techniques in our centre for a diagnosis of bronchogenic carcinoma, bronchial brushing has higher sensitivity and specificity than bronchial washing. Even though the combination of both cytological techniques yielded not much difference in sensitivity and specificity than brushing alone, usefulness of bronchial washing was evident in adenocarcinomas. Therefore, bronchial brushing, washing and biopsy should be done in the evaluation of suspicious bronchogenic carcinoma and major importance in the processing, evaluation and analysis of brushing will be useful in better cytological diagnosis.

Accuracy of endocervical cytological tests in diagnosing preinvasive lesions of the cervical canal in patients with type 3 transformation zone: a retrospective observational study

ABSTRACT BACKGROUND: Cervical cancer screening in Brazil is done using Pap smears. Women who are most likely to have a preinvasive lesion or cervical cancer are immediately referred for colposcopy. OBJECTIVE: The aim of this study was to evaluate the diagnostic performance of endocervical cytological tests in diagnosing preinvasive cervical lesions in women with initial high-grade squamous intraepithelial lesions (HSIL), or atypical squamous cells in which high-grade lesions could not be ruled out (ASC-H), or atypical glandular cells (AGC), and whose colposcopy did not show any abnormalities, with no fully visible transformation zone (types 2 and 3). DESIGN AND SETTING: Retrospective observational study conducted in Rio de Janeiro, Brazil. METHODS: Data from women who came to the cervical pathology outpatient clinic between January 2012 and April 2017 were analyzed. The results from endocervical cytological tests were compared with the final diagnosis, which was obtained through examination of a surgical specimen or, among women who did not undergo an excisional procedure, after cytological and colposcopic follow-up for two years. RESULTS: We included 78 women. The sensitivity of endocervical cytological tests was 72.7%; specificity 98.5%; positive and negative predictive values 88.9% and 95.6%, respectively; and positive and negative likelihood ratios 48.7 and 0.28. CONCLUSION: Endocervical cytological tests are simple, inexpensive and noninvasive, and form a reliable method for determining management among patients with HSIL, ASC-H and AGC cytological findings and negative colposcopic findings without visualization of the squamocolumnar junction.

Knowledge, attitude and practice on oral hygiene among primary school children in an urban area of Kancheepuram district, Tamil Nadu

Background: Oral health is fundamental to general health and well-being. To organize community oriented oral health promotion programs, systematic analysis of oral health is mandatory which includes information on oral health knowledge, attitude and practice (KAP). The study was done with the aim to assess the KAP on oral hygiene among primary school children in an urban area of Kancheepuram district, Tamil Nadu.Methods: A sample of 250 primary school children in the age group of 8-10 at Anakaputhur, an urban field practice area of Sree Balaji Medical College and Hospital, Kancheepuram district was chosen by multi-stage sampling technique.Data on oral hygiene was collected by using a pre-tested semi-structured questionnaire by personal interview method. The data obtained was subjected to statistical analysis using SPSS version 22.Results: Among the study participants, 65.6% of children had good knowledge on oral hygiene with only 33.6% of children with positive attitude and 10.8% of children had good practice of oral hygiene. Around 96 % of the children knew that they should brush their teeth twice daily, 92% of the children knew that having sweets/fizzy drinks causes oral health problems and 96% of the children think that maintaining healthy teeth is an individual responsibility.Conclusions: Health education services at school regarding oral hygiene practices targeting the children, teachers and the parents have to be conducted at regular intervals to empower them on the benefits of the same.

A KAP study of oral health status among adults in a rural area of Jammu District

Background: Oral health is an integral part of general health and well being. It is important to know about the factors which having a bearing on oral health so that preventive measures can be taken. A research activity was planned to assess the oral health status and oral health practices of people in a rural community of Jammu region as very little is known about the knowledge and oral health practices of adults residing in this area.Methods: A cross sectional study for a period of four months was conducted in a village Tanda of R.S.Pura block of Jammu district. 324 adults above the age of 20 years (145 males and 179 females) were interviewed face to face with the help of a questionnaire consisting of questions from WHO technique of self assessment of oral health along with some more questions exploring the knowledge, attitude and local oral health practices.Results: The overall results showed adequate knowledge but poor attitude regarding oral health. Out of 324 subjects studied, 41.7% paid dental visits on having pain in teeth, gums or mouth and only 3.0% visited dentist routinely. 85.6 % of participants reported using brush and toothpaste but only 24.0% of all respondents brushed twice a day and only 16.7% of the respondents changed their tooth brush within three months.Conclusions: Oral health awareness, by promoting community based programs should be undertaken at periodic intervals for better oral health and hygiene.

Multidisciplinary Management of Desquamative Gingivitis with Periodontal Disease

@#Desquamative gingivitis (DG) is a manifestation of a number of mucocutanenous disorders, one of it being oral lichen planus (OLP). OLP is an autoimmune disease. The aetiology for this condition is unknown, but there are few factors associated with its occurrence, for example alcohol drinking, smoking, allergic reaction to certain medications or restorative material. DG lesions increase the long-term risk for plaque-induced periodontal disease. At the same time, dental plaque and calculus cause gingival OLP resulting in the erosive disease. This report presents the management of a case of oral lichen planus associated with desquamative gingivitis with periodontitis. The expertise involved are from the oral medicine, periodontic and prosthodontic clinics. The uniqueness of the case management was the introduction of single tufted brush, Tepe® compact tuft toothbrush, to perform “solo brushing technique”. It was able to remove plaque effectively and did not cause irritation to the gingivae. Patients presenting with mucocutaneous disorders which exarcebates other oral conditions requires multidisciplinary management. Proper treatment planning will significantly improve their oral health related quality of life.

Comparação da eficácia da escova interproximal manual e irrigador bucal tipo waterflosser na higiene periimplantar em pacientes reabilitados com prótese total fixa sobre implantes: ensaio clínico randomizado controlado cruzado / Comparison of oral irrigator and interproximal brush in peri-implant oral hygiene in implant-fixed full-arch mandibular prosthesis: randomized controlled crossover clinical trial

Dificuldades na higienização de próteses fixas implanto-suportadas é uma queixa frequente dos pacientes. Embora a higiene bucal seja primordial para a manutenção em longo prazo, não há consenso na literatura com relação à eficácia de protocolos de higienização em implantes dentários e as melhores abordagens ainda estão por ser estabelecidas. Assim, o objetivo do presente estudo foi avaliar e comparar a eficácia de 2 protocolos de higienização, irrigador bucal e escova interproximal, como adjuvantes à escovação convencional na limpeza peri-implantar entre indivíduos reabilitados com prótese total implanto-suportadas. Para tal, um ensaio clínico randomizado controlado cruzado foi realizado com 21 indivíduos. No momento da seleção, cada participante foi aleatoriamente designado para um dos grupos do estudo: 1) grupo IB = escova interproximal + escova convencional ou 2) grupo IO = irrigador oral + escova convencional. Após 60 dias sob o protocolo de tratamento inicial, e transcorridos um período de washout de 30 dias, todos os participantes mudaram seus respectivos protocolos de higiene bucal. Os desfechos presença de placa bacteriana peri-implantar (PPi) e sangramento à sondagem (SSi) foram coletados no baseline, 7, 14, 30 e 60 dias após o início de cada tratamento. A análise estatística incluiu comparações intra e intergrupos através do teste de Friedman. Além disso, uma regressão logística de efeitos mistos foi usada para determinar as variáveis preditoras associadas aos desfechos do estudo. Ambos os grupos apresentaram melhorias no controle de PPi e SSi, embora as reduções tenham sido maiores no grupo IO, em todos os tempos de avaliação. As melhorias no controle de PPi e SSi após o período de monitoramento de 60 dias foram, respectivamente, cerca de 36% e 33% maiores no grupo IO. Escovação interproximal e sítios linguais foram associados com a ocorrência de PPi e SSi nos modelos logísticos finais de efeitos mistos. Os achados do presente estudo suportam a recomendação do irrigador bucal como adjuvante a escovação convencional na higiene peri-implantar em indivíduos reabilitados com prótese total inferior implanto-suportada (ensaiosclinicos.gov.br #RBR-62hsp9).

Comparison of oral irrigator and interproximal brush in peri-implant oral hygiene in implant-fixed full-arch mandibular prosthesis: randomized controlled crossover clinical trial. Great difficulties in oral hygiene of implant-fixed prostheses are a common complaint of patients. Although oral hygiene is paramount for long-lasting healthy and functional prosthetic rehabilitations, there is no literature consensus with respect to the efficacy of self-performed oral hygiene protocols around dental implants and the best approaches are yet to be established. Therefore, the aim of the present study was to evaluate and compare the efficacy of oral irrigator and interproximal brush as adjuvant to conventional brushing in peri-implant oral hygiene among individuals rehabilitated with implant-fixed full-arch mandibular prosthesis. A randomized controlled crossover clinical trial was conducted with 21 individuals. At the enrollment, each participant was randomly assigned to one of the study groups: 1) IB group = interproximal brush + conventional brush ou 2) OI group = oral irrigator + conventional brush. After 60 days under the initially treatment and a 30-day washout period, all participants changed their respective oral hygiene protocol. Peri- implant dental plaque (PiDP) and bleeding on probing (BOPi) were collected at baseline, 7, 14, 30 and 60 days after the beginning of each treatment. Statistical analysis included intra-and intergroup comparisons through the Friedman test. Mixed-effects logistic regression was used to determine the effects of predictors associated to study outcomes. Both groups presented improvements in PiDP and BOPi control, although reductions were greater in the OI group, at all examination times. Improvements in PiDP and BOPi after the 60-day monitoring period were, respectively, around 36% and 33% greater in the OI group. Interproximal brushing and lingual sites were associated with PiDP and BOPi in the mixed effects final models. Findings support the recommendation of oral irrigator as adjuvant to conventional brushing in the peri-implant oral hygiene in implant-fixed full-arch rehabilitated individuals (ensaiosclinicos.gov.br #RBR-62hsp9).