Impacts of pandemic covid-19 on dental urgencies in primary health care: an ecological study / Impactos da pandemia da covid-19 nos atendimentos a urgências odontológicas na atenção primária à saúde: um estudo ecológico

INTRODUCTION: After the onset of the Covid-19 pandemic, oral health care in Primary Health Care (PHC) services in Brazil focused on emergency care. OBJECTIVE: To evaluate the impact of the Covid-19 pandemic on the number of emergency dental visits in PHC in Brazil. METHODS: This was an analytical and ecological study with data from the Health Information System for Primary Care referring to the number of attendances performed from March to December 2018 to 2020 in PHC services throughout Brazil for toothache, abscess, and dentoalveolar trauma. Differences between the monthly medians of the number of attendances before the pandemic (April to December 2018 and 2019) and during (April to December 2020) were analyzed using the independent-samples Mann-Whitney U test considering the interquartile ranges (IQR). RESULTS: Approximately 14 million cases were analyzed, with almost one-third of them occurring during the pandemic. There was a reduction in the median of the monthly number of emergency department visits in Brazil (-16.5%; p<0.031). Attendances for toothache reduced from a monthly median of 448,802.0 to 377,941.5 (IQR before [IQRa]: 416,291.7-506,150.5; IQR during [IQRd]: 310,251.0-454,206.5), dentoalveolar abscess attendances reduced from 34,929.0 to 27,705.5 (IQRa: 30,215.0-37,870.5; IQRd: 22,216.0-30,048.2) and to dentoalveolar trauma from 16,330.5 to 10,975.0 (IQRa: 14,800.0-18,472.7; IQRd: 8,111.2-13,527.5). CONCLUSION: Significant reductions were observed in the performance of emergency dental procedures in PHC during the COVID-19 pandemic.

INTRODUÇÃO: Após a instalação da pandemia da Covid-19, a atenção em saúde bucal nos serviços de Atenção Primária à Saúde (APS) no Brasil se concentrou nos atendimentos de urgência. OBJETIVO: Avaliar o impacto da pandemia da COVID-19 no número de atendimentos a urgências odontológicas na APS no Brasil. MÉTODOS: Trata-se de um estudo analítico e ecológico com dados do Sistema de Informação em Saúde para a Atenção Básica referentes ao número de atendimentos realizados de março a dezembro de 2018 a 2020 nos serviços de APS de todo o Brasil para dor de dente, abscesso e traumatismo dentoalveolares. Diferenças entre as medianas do número de atendimentos mensais antes da pandemia (abril a dezembro de 2018 e 2019) e durante (abril a dezembro de 2020) foram analisadas usando o teste não paramétrico de Mann-Whitney U para amostras independentes considerando os intervalos interquartílicos (IIQ). RESULTADOS: Foram analisados aproximadamente 14 milhões de atendimentos, sendo quase um terço deles ocorridos durante a pandemia. Houve redução na mediana do número mensal de atendimentos a urgências no Brasil (-16,5%; p<0,031). Atendimentos a dor de dente reduziram de uma mediana mensal de 448.802,0 para 377.941,5 (IIQ antes [IIQa]: 416.291,7-506.150,5; IIQ durante [IIQd]: 310.251,0-454.206,5), atendimentos de abscesso dentoalveolar reduziram de 34.929,0 para 27.705,5 (IIQa: 30.215,0-37.870,5; IIQd: 22.216,0-30.048,2) e a traumatismos dentoalveolares de 16.330,5 para 10.975,0 (IIQa: 14.800,0-18.472,7; IIQd: 8.111,2-13.527,5). CONCLUSÃO: Foram observadas reduções significativas na realização de procedimentos odontológicos de urgência na APS durante a pandemia de COVID-19.

Abordagem multidisciplinar no tratamento de incisivo lateral com fratura oblíqua e lesão periapical: relato de caso clínico / Multidisciplinary approach in the treatment of lateral incisor with oblique fracture and periapical injury: clinical case report

Casos de fraturas dentárias oblíquas muitas vezes possuem um prognóstico desfavorável, geralmente com indicação da extração do elemento dental. O presente artigo visou relatar o tratamento do caso clínico de um paciente do sexo masculino, 12 anos, que compareceu à Unidade de Saúde Bucal do Hospital Universitário de Brasília com encaminhamento de extração do dente 12, apresentando fratura oblíqua que se estendia subgengivalmente na face vestibular. O trauma havia ocorrido há três anos e o paciente havia sido submetido a diversas intervenções endodônticas, apresentando no momento da consulta inicial por nossa equipe uma lesão periapical extensa. Após a realização da anamnese, exame clínico e radiográfico, foi adotada uma abordagem multidisciplinar conservadora com a manutenção do dente e a realização da enucleação da lesão periapical por meio de intervenção cirúrgica e posterior reabilitação. Em uma mesma sessão, foi realizada a obturação do conduto com cone de guta percha e cimento sealer 26 e a cirurgia parendodôntica juntamente com a apicoplastia. Uma semana após a intervenção cirúrgica foi realizada restauração classe IV com resina composta baseada no enceramento dos modelos de diagnóstico montados em articulador. Com base em uma avaliação criteriosa e multidisciplinar, foi possível adotar uma abordagem conservadora no caso em questão, com a manutenção e reabilitação de um dente permanente em um paciente jovem, evitando a indicação de exodontia(AU)

Cases of oblique dental fractures often have an unfavorable prognosis, usually with the indication of extraction of the dental element. The present article aimed to report the treatment of the clinical case of a 12-year-old male patient, who attended the Oral Health Unit of the Hospital Universitário de Brasília with a referral for extraction of tooth 7, presenting an oblique fracture that extended subgingivally on the labial surface. The trauma had occurred three years ago and the patient had undergone several endodontic interventions, presenting an extensive periapical lesion at the time of the initial consultation by our team. After anamnesis, clinical and radiographic examination, a conservative multidisciplinar approach was adopted with the maintenance of the tooth and the enucleation of the periapical lesion through surgical intervention and subsequente rehabilitation. In the same session, the conduit was filled with gutta-percha cone and sealer cement 26 and parendodontic surgery was performed together with apicoplasty. One week after the surgical intervention, class IV restoration was performed with composite resin based on the waxing of the diagnostic models mounted on an articulator. Based on a careful and multidisciplinary evaluation, it was possible to adopt a conservative approach in the case in question, with the maintenance and rehabilitation of a permanent tooth in a young patient, avoiding the indication of extraction(AU)

Absceso dentoalveolar agudo en escolares de Tuinucú / Acute dentoalveolar abscess in pupils from Tuinucú

RESUMEN Fundamento: Los abscesos dentoalveolares agudos constituyen causa frecuente de las visitas de los niños a la consulta estomatológica. Objetivo: Identificar los dientes afectados por absceso dentoalveolar agudo y sus factores de riesgo en escolares de en la Escuela Primaria Melanio Hernández de Tuinucú. Metodología: Se realizó un estudio descriptivo, transversal en la Escuela Primaria de Tuinucú en el período comprendido entre septiembre de 2020 y abril de 2021. Se seleccionaron 30 escolares de 2do grado con absceso dentoalveolar agudo. Se utilizaron métodos del nivel teórico, empírico y estadístico. Se estudiaron las variables: sexo, diente afectado y factores de riesgos del absceso dentoalveolar agudo. Resultados: El 53.3 % de los escolares presentó absceso dentoalveolar agudo en los primeros molares temporales y el 43.3 % en los segundos. El 97 % tiene desconocimiento del absceso alveolar agudo y el 70 % estuvo afectado por caries dental. Conclusiones: Los primeros y segundos molares temporales fueron los dientes con mayor afectación por absceso alveolar agudo, sobre todo los inferiores, con predominio de la caries dental y el desconocimiento sobre el absceso dentoalveolar agudo como principales factores de riesgo.

ABSTRACT Background: Acute dentoalveolar abscesses are a frequent cause for children to visit the dentist. Objective: To identify the teeth affected by acute dentoalveolar abscess and their risk factors in pupils at the Melanio Hernández Elementary School in Tuinucú. Methodology: A descriptive, cross-sectional study was conducted at the Primary School in Tuinucú from September 2020 to April 2021. 30 2nd grade pupils with acute dentoalveolar abscess were selected. Methods of the theoretical, empirical and statistical level were used. The variables studied were: sex, affected tooth and risk factors for acute dentoalveolar abscess. Results: 53.3 % of pupils presented acute dentoalveolar abscess in the first primary molars and 43.3 % in the second. 97 % are unconscious of the acute alveolar abscess and 70 % were affected by dental caries. Conclusions: The first and second primary molars were the teeth mostly affected by acute alveolar abscess, especially those lower part, with prevalence of dental caries and lack of knowledge about acute dentoalveolar abscess as the main risk factors.

Fibrina rica en plaquetas aplicada en conjunto con biomodificación alveolar en la regeneración ósea guiada. Reporte de caso / Platelet rich fibrin applied in conjunction with alveolar biomodification in guided bone regeneration. Case report

Resumen Debido a los diferentes problemas existentes a la hora de realizar procedimientos implantológicos por la calidad del remanente óseo y el estado de los tejidos periodontales en la zona a rehabilitar, existen opciones de regeneración ósea inducida que muestran tasas de éxito considerablemente favorables al ser empleadas en casos donde es necesario una regeneración ósea extensa capaz de soportar un implante dental. El objetivo del presente estudio es describir el éxito en la regeneración ósea por medio de alternativas combinadas de fibrina rica en plaquetas y modificación biológica con tetraciclina. Reporte del caso clínico: paciente femenina de 67 años que consulta por inflamación, supuración y dolor en la zona antero-superior. Es diagnosticada como absceso periapical crónico, se hace cirugía de extracción de órganos dentales, posterior a eso se hace descontaminación y adaptación de los alveolos con tetraciclina para realizar la regeneración ósea guiada con fibrina rica en plaquetas, hueso tipo Lumina Bone Porous y Lumina Coat, luego se espera el proceso de evolución para colocación de implantes dentales. El éxito obtenido con el uso de fibrina rica en plaquetas y la biomodificacion ósea como coadyuvante en la desinfección de la zona a tratar, logró mostrar resultados altamente favorables en el proceso de regeneración ósea guiada.

Abstract As the different problems that exist when carrying out implant procedures due to the quality of the bone remnant and the state of the existing periodontal tissues in the area to be rehabilitated, there are induced bone regeneration options that show considerably favorable success rates as they are used in cases where extensive bone regeneration is necessary to support a dental implant. The objective of the present study is to describe the success in bone regeneration using combined alternatives of platelet-rich fibrin and biological modification with tetracycline. Report of the clinical case: 67-year-old female patient consulted for inflammation and suppuration and pain in the upper antero-superior area, she was diagnosed as chronic periapical abscess, dental organ extraction surgery was performed, after that decontamination and adaptation of the alveoli was performed with tetracycline to perform guided bone regeneration with platelet-rich fibrin, Coat membrane and Lumina bone criteria, then wait for the evolution process to place dental implants. The success obtained with the use of FRP and bone biomodification as an adjuvant in the disinfection of the area to be treated achieved to show highly favorable results in the guided bone regeneration process.

IL-17 E SUA RELAÇÃO COM AS LESÕES PERIRRADICULARES: REVISÃO DE LITERATURA / IL-17 AND ITS RELATIONSHIP TO PERIRRADICULAR INJURIES: LITERATURE REVIEW

A lesão perirradicular consiste em uma doença inflamatória de origem microbiana causada pelo desenvolvimento da infecção no sistema de canais radiculares. Citocinas pró-inflamatórias e imunoregulatórias são fundamentais para o desenvolvimento dessas lesões. No entanto, pouco se sabe sobre como e em que momento elas atuam nas diferentes fases de desenvolvimento da lesão. A presença de bactérias e seus subprodutos metabólicos evocam reações imunológicas do hospedeiro, como a chegada de diferentes células do sistema de defesa aos tecidos periapicais, bem como produção de mediadores inflamatórios. Diversos estudos vêm sendo realizados para identificar os mediadores envolvidos na atividade de reabsorção óssea, permitindo uma melhor compreensão sobre a etiopatogenia das periacopatias. Além disso, investigações prévias sugerem que os linfócitos T CD4+ são as célulasinflamatórias predominantes que se infiltram na patogênese das lesões periapicais e desempenham um papel importante no curso da doença. Células Th17, que compreendem uma subpopulação da T CD4+, cujo produto principal é a interleucina IL-17. A IL-17 é uma citocina pró-inflamatória que exerce efeitos potentes em diferentes tipos celulares da imunidade inata e é considerada uma ponte molecular entre o sistema imunológico inato e adaptativo. Ela também é responsável pelo início e propagação da inflamação, apresentando um papel importante na ligação da ativação da célula T para mobilização e ativação de neutrófilos. Neste contexto, a presente revisão da literatura discutiu o papel da IL-17 na formação e manutenção de lesões perirradiculares.

The periapical lesion is an inflammatory disease of microbial origin caused by infection development in the root canal system. Pro-inflammatory and immunoregulatory cytokines are essential for the development of these lesions. However, little is known about how and when they act in the different stages of injury development. The presence of bacteria and their metabolic products evoke host immune reactions, such as the arrival of different cells of the defense system in periapical tissues, as well as the production of inflammatory mediators. Several studies have been carried out to identify the mediators involved in bone resorption activity, allowing a better understanding of the etiopathogenesis of periapicopathies. In addition, previous investigations suggest that CD4 + T lymphocytes are the predominant inflammatory cells that infiltrate the pathogenesis of periapical lesions and play an important role in the course of the disease. Th17 cells, which comprise a subpopulation of CD4 + T, whose main product is interleukin IL-17. IL-17 is a pro-inflammatory cytokine that has potent effects on different cell types of innate immunity and is considered a molecular bridge between the innate and adaptive immune systems. It is also responsible for the onset and spread of inflammation, playing an important role in linking T cell activation to neutrophil mobilization and activation. In this context, the present literature review discussed the role of IL-17 in the formation and maintenance of periradicular lesions.

Uso do instrumento Reciproc Blue associado à terapia fotodinâmica: relato de caso / Use of the Reciproc Blue instrument associated with photodynamic therapy: case report

Introdução: A presença de microrganismos é considerada a principal causa de insucesso da terapia endodôntica. Além disso, a anatomia interna dos dentes também representa um grande desafio para os endodontistas. Desse modo, lançar mão da tecnologia reduz tempo clínico e aumenta a chance de sucesso da terapia endodôntica. Objetivo: O objetivo do presente estudo foi relatar um caso clínico com a utilização de instrumentação mecanizada e o sistema Reci- proc Blue associados à terapia fotodinâmica. Descrição: Paciente do sexo feminino, melanoderma, compareceu à clínica escola de uma faculdade de Odontologia apresentando duas fístulas intrabucais ativas na região de fundo de vestíbulo próxima aos ápices dos dentes #12 e #22. Após os exames clínicos, radiográficos, testes de sensibilidade e rastreamento de fístulas, estabeleceu-se o diagnóstico de necrose pulpar, sugestível de abscesso apical crônico dos incisivos laterais superiores. Resultados: O tratamento endodôntico dos dois elementos dentários foi realizado em sessão única, utilizando o instrumento Reciproc Blue em movimento reciprocante associado à terapia fotodinâmica. Após 30 dias da conclusão dos tratamentos endodônticos e restauradores, os dentes apresentavam-se assintomáticos e com cicatrização das fístulas intrabucais. Conclusão: O uso do sistema Reciproc Blue associado à terapia fotodinâmica foi eficaz. Constatou-se o sucesso clínico e radiográfico da terapêutica aplicada, verificando-se o restabelecimento da região periapical, com regressão da lesão radiograficamente e ausência de sinais clínicos e sintomas de infecção do canal radicular. O acompanhamento por tempo prolongado é necessário para se avaliar o total reparo da lesão periapical (AU).

Introduction: The presence of microorganisms is considered the main cause of endodontic therapy failure. In addition, an internal anatomy also poses a major challenge for endodontists. In this way, avail a series of quick techniques and increase the chance of success. The reason of this study was to relate clinical cases, root canal treatment, using mechanized instrumentation with the system Reciproc Blue instrument, associated with photodynamic therapy. Case report: A female genetic patient, brown skin, presented at the school clinic of a dental school, with a major complaint of "blistering on the gum." At the clinical examination, the target dates are inside the mouth active in the selection bottom region near the apexes of the elements 12 and 22. Through clinical, radiographic, sensitivity and screening tests of fistulae, diagnosis and diagnosis of pulp necrosis, suggestive of chronic apex abscess of the incisors. Results: Endodontic treatment of the two dental elements was performed in a single session using the Reciproc Blue instrument in a reciprocating motion associated with photodynamic therapy. After 30 days of completion of endodontic and restorative treatments, one patient returned for evaluation and clinical follow-up. The new asymptomatic presentation and with a healing of the intrabucal fistulas. Conclusion: The system Reciproc Blue associated with photo-dynamic therapy was effective. It was verified the clinical and radiographic success of apicality, confirming the reestablishment of the apex region with regression of the radiographic lesion and the absence of clinical signs and signs of infection of the root canal. The patient is with the clinician and radiographic studies (AU).

Chronic inflammatory periapical diseases: a Brazilian multicenter study of 10, 381 cases and literature review

Abstract The aim of this study was to investigate the epidemiological and clinical characteristics of chronic inflammatory periapical diseases in different regions of Brazil and to compare with data from the literature. A multicenter study was carried out in four Brazilian referral centers in oral diagnosis. Histopathological records were reviewed, and all cases diagnosed microscopically as periapical granuloma, radicular cyst, and periapical abscess were included. Demographic and clinical data were collected. Descriptive statistics and Pearson's chi-square test were performed. A total of 10,381 cases of chronic inflammatory periapical diseases were found (13.8% of 74,931 archived specimens) over a period of 65 years. Radicular cysts were the most common lesion (59.9%). Women (56.1%) with a mean age of 37.01 years old (range 13 to 100 ± 14.42) and people of white skin color (59.2%) were the most affected individuals by chronic inflammatory periapical diseases. The lesions were generally asymptomatic (28.1%), located in the maxilla (60.1%), and posterior region (49.8%). The radicular cysts were larger when compared to periapical granulomas (p < 0.001). The disagreement between the clinical and histopathological diagnoses was higher when the final diagnosis was a periapical granuloma (p < 0.001). Chronic inflammatory periapical diseases continue to be common lesions affecting mainly adults. This should be a consequence of the burden of untreated caries in permanent teeth. Women are more affected and radicular cyst was the most common lesion.

Primer premolar inferior con dos conductos y doble trayecto fistuloso: caso clínico / First lower premolar with two canals and double fistulous path: a clinical case

El tratamiento endodóntico del primer premolar inferior, cuando presenta varios conductos o varias raíces puede ser un gran desafío. En el presente trabajo se describe un caso clínico de un paciente de sexo masculino de 60 años de edad que concurre al Servicio de Guardia de la Facultad de Odontología de la Universidad de Buenos Aires (FOUBA). Al examen clínico y radiográfico se descubre la presencia de dos trayectos fistulosos que corresponden a la misma pieza dentaria con diagnóstico de absceso alveolar crónico. Concluimos que el operador debe realizar un minucioso diagnóstico, y analizar y conocer las diferentes configuraciones anatómicas para tratarlas adecuadamente, aumentando así las probabilidades de éxito del tratamiento (AU)

Endodontic treatment of the first lower premolar when it has multiple ducts or multiple roots can be a challenge. This paper describes a clinical case of a 60-year-old male patient who attends the on-call service of the School of Dentistry of the University of Buenos Aires (FOUBA). Upon clinical and radiographic examination, the presence of two sinusal tracts that corresponded to the same dental piece with a diagnosis of chronic alveolar abscess was discovered. We conclude that the operator must carry out a thorough diagnosis and analyze and understand the different anatomical configurations in order to properly treat them, thus increasing the probability of treatment success (AU)

Prevalência de dor odontogênica em um serviço de pronto-atendimento odontológico público do Sul do Brasil / Prevalence of odontogenic pain in a public dental urgency service in Southern Brazil

Objetivo: Identificar as principais causas de dor odontogênica que levam à busca pelo atendimento no Serviço de Pronto Atendimento Odontológico (SPAO) da Faculdade de Odontologia da Universidade de Passo Fundo (UPF), que funciona junto ao Hospital São Vicente de Paulo e está ligado ao Sistema Único de Saúde (SUS). Métodos: Realizou-se um estudo epidemiológico transversal e retrospectivo, baseado em dados de prontuários odontológicos de pacientes atendidos entre novembro de 2016 e outubro de 2017. Os dados foram analisados buscando-se a prevalência das diversas origens de dor odontogênica dos pacientes atendidos no período: pulpar (pulpite reversível, pulpite irreversível, necrose); periapical (pericementite, abscesso periapical); ou periodontal (periodontite, abscesso periodontal). Além disso, foi catalogada a conduta realizada durante os atendimentos de urgência. Resultados: Ao todo, foram analisados 1.275 prontuários. Desses, 868 pacientes (68,1%) apresentavam dor ao atendimento. Dos pacientes que relataram dor, 62,3% apresentavam dor odontogênica pulpar; 11,1%, dor periapical; e 12,2%, dor periodontal. A conduta mais adotada para tratamento da dor foi a terapia com analgésicos e/ou antibióticos (21,0% dos casos), seguida por acessos endodônticos (18,7%) e exodontias (17,9%). Conclusão: No serviço de pronto atendimento analisado, prevaleceram os casos de dor de origem pulpar. Os resultados obtidos contribuem para o desenvolvimento de estratégias de controle da dor odontogênica, bem como para a melhoria dos protocolos clínicos adotados na faculdade em questão (AU).

Objective: To identify the main causes of odontogenic pain that lead to people search for care in the Urgency Service of the School of Dentistry of University, Passo Fundo/RS/Brazil (SPAOH), localized in the Hospital São Vicente de Paulo. Methodology: A cross-sectional and retrospective study, carried out between the period from November 1, 2016 to October 31, 2017, when data from dental care records were collected and tabulated. The data were analyzed looking for the prevalence of several causes of odontogenic pain, with pulp origin (reversible, irreversible pulpitis, necrosis); periapical (pericementitis, abscess); periodontal (periodontitis); and others, in addition to the conduct performed in attendance. Results: A total of 1,275 dental records were analyzed, involving 868 patients, of which 68.1% reported the presence of pulp (62.3%), periapical (11.1%) and periodontal (12.2%) odontogenic pains. Analgesic or antibiotic therapies were the most common approaches, totaling 21.0% of cases, followed by endodontic accesses (18.7%) and extractions (17.9%). Conclusion: In the studied dental urgency service, cases of pulp pain prevail. The results obtained contribute to the development of strategies to control odontogenic pain, as well as to the improvement of clinical protocols (AU).

Ex Vivo Evaluation of a Restoration Protocol for Teeth with Simulated Incomplete Rhizogenesis / Evaluación ex vivo de un protocolo de restauración para dientes con rizogénesis incompleta simulada

Abstract: The use of phosphate buffered saline (PBS) as an intracanal medication triggers a biomineralization process within mineral trioxide aggregate (MTA) apical plugs during the apexification process in teeth with incomplete rhizogenesis. However, no consensus is available in the literature regarding a restorative protocol for this type of treatment. Thus, the objective of this study was to use scanning electron microscopy (SEM) to evaluate the processes of biomineralization and adhesion in a restorative protocol for teeth with simulated incomplete rhizogenesis. Methodology: Root sections with a thickness of 2mm and cavities with a diameter of 2mm were used. The sections were randomly prepared and filled with the following materials: Group 1 (n=12), ProRoot MTA; and Group 2 (n=12): MTA Exp. Subsequently, the samples were immersed in PBS for 35 days. Every 5 days, the PBS was replaced, and the precipitates were collected, dried, and weighed. Two samples from each group were analyzed by SEM. Moreover, 24 single-rooted teeth were standardized, incomplete rhizogenesis was simulated, and 5-mm-long apical plugs were created with Pro Root MTA. As an intracanal medication, PBS was used for different periods of time: Group 1:48 h; Group 2:7 days; and Group 3:15 days. Then, fiberglass posts were cemented with the REBILDA® Post System. The samples were prepared and analyzed by SEM. Results: ProRoot MTA and MTA Exp effectively promoted the formation of carbonated apatite precipitates and biomineralization with dentin. ProRoot MTA yielded more carbonated apatite precipitates compared to MTA Exp (p=0.0536). The use of PBS as an intracanal medication for 7 and 15 days promoted intratubular mineralization (MIT), and treatment for 15 days was more effective (p < 0.05). The REBILDA® Post System effectively promoted the microimbrication of the adhesive system and the formation of resinous tags with lateral adhesive branches. Conclusion: Apexification with MTA associated with the use of PBS as an intracanal medication for 15 days, in addition to the use of the REBILDA® Post System, seems to be a feasible restorative protocol.

Resumen: El uso de solución salina tamponada con fosfato (PBS) como medicamento intracanal desencadena un proceso de biomineralización en los plugs apicales con agregado de trióxido mineral (MTA) durante el proceso de apexificación en dientes con rizogénesis incompleta. Sin embargo, no hay consenso disponible en la literatura sobre un protocolo restaurador para este tipo de tratamiento. Por lo tanto, el objetivo de este estudio fue utilizar microscopía electrónica de barrido (MEB) para evaluar los procesos de biomineralización y adhesión en un protocolo restaurador para dientes con rizogénesis incompleta simulada. Metodología: Se utilizaron secciones de raíz con un espesor de 2mm y se realizaron cavidades con un diámetro de 2 mm. Las cavidades en las secciones se obturaron con: Grupo 1 (n=12), ProRoot MTA; y Grupo 2 (n=12): MTA Exp. Posteriormente, las muestras se sumergieron en PBS durante 35 días. Cada 5 días, se reemplazó el PBS y se recogieron los precipitados, se secaron y pesaron. Dos muestras de cada grupo fueron analizadas por MEB. Además, se estandarizaron 24 dientes de raíz única, se simuló la rizogénesis incompleta y se crearon tapones apicales de 5mm de longitud con Pro Root MTA. Como medicamento intracanal, se utilizó PBS durante diferentes períodos de tiempo: Grupo 1:48 h; Grupo 2:7 días; y Grupo 3:15 días. Posteriormente, los postes de fibra de vidrio se cementaron con el sistema de postes REBILDA®. Las muestras fueron preparadas y analizadas por MEB. Resultados: ProRoot MTA y MTA Exp promovieron efectivamente la formación de precipitados de apatita carbonatada y la biomineralización con dentina. ProRoot MTA produjo más precipitados de apatita carbonatada en comparación con MTA Exp (p=0.0536). El uso de PBS como medicamento intracanal durante 7 y 15 días promovió la mineralización intratubular (MIT), siendo el tratamiento durante 15 días más efectivo (p <0.05). El sistema de postes REBILDA® promovió efectivamente la microimbricación del sistema adhesivo y la formación de tags resinosos. Conclusión: La apexificación con MTA asociada con el uso de PBS como medicación intracanal durante 15 días, además del uso del sistema de postes REBILDA®, parece ser un protocolo factible y eficaz en este tipo de tratamientos.

Abscesos cervicofaciales de origen odontógeno: ¿cuándo y cómo debemos drenarlos? / 6 EFFICACY OF PERCUTANEOUS TREATMENT AND SURGICAL DRAINAGE IN DENTAL ABSCESSES

ANTECEDENTES: La afectación de los espacios cervicales como resultado de focos infecciosos cervicofaciales son eventos infrecuentes, pero potencialmente mortales. La causa más frecuente de infecciones profundas del cuello son el resultado de la infección odontogénica (IO). Estas afectan a individuos de todas las edades y pueden presentar distintos grados de severidad. Son diagnosticadas con examen físico, estudios por imágenes, Ecografía o Tomografía Computada (TC). Debe realizarse siempre el drenaje quirúrgico de forma clásica o percutánea según el caso de las colecciones en forma precoz. OBJETIVO: Analizar la eficacia clínica del tratamiento percutáneo y el drenaje quirúrgico en abscesos odontogenos MATERIALES Y MÉTODOS: Se llevo a cabo un trabajo transversal de enero de 2015 a diciembre de 2019. Se realizo revisión de historias clínicas en la sección de Cirugía de Cabeza y Cuello de nuestro Hospital de todos los pacientes que requirieron internación y fueron sometidos a drenaje quirúrgico y/o percutáneo por la presencia de absceso cervical de origen odontogeno. RESULTADOS: Fueron analizados 174 pacientes. Edad promedio 36 +/- 2 años. Solo al 37% se les realizo drenaje quirúrgico abierto. Al resto se realizó punciones percutáneas en forma seriada. El 25 % presento algún signo de compromiso de vía aérea (escala de severidad 3), y solo 2 pacientes con mediastinitis que requirieron drenaje urgente. Se realizo la exodoncia a todas los pacientes durante la internación. DISCUSION: Las infecciones cervicofaciales representan un tipo de infección potencialmente fatal si no se inicia rápidamente un tratamiento eficaz. La causa principal son IO que se manifiestan como flemones o abscesos. Las caries dentales suelen ser el origen. Debe establecerse la terapéutica antibiótica empírica en forma precoz y corticoides con bajas dosis cuando hay edema y/o trismus. A estos pacientes se les realiza tratamiento antibiótico (ampicilina sulbactam), acompañado de tratamiento quirúrgico (drenaje percutáneo o drenaje quirúrgico). La complicación más temida, es la progresión de la infección al mediastino (mediastinitis descendente) y / o Angina de Ludwig. CONCLUSIONES: No está protocolizado a quienes se les debe realizar tratamiento quirúrgico o tratamiento percutáneo. El drenaje quirúrgico abierto parece ser la primera opción frente al compromiso de vía aérea o colecciones no pasibles de drenaje percutáneo. Para el resto de los pacientes, que son la mayoría, las punciones percutáneas guidas con ecografía y en forma seriada son la mejor opción

Background: The involvement of cervical spaces as a result of cervical infectious focuses are rare but life-threatening events. The most common cause of deep neck infections is the result of dental infection (DI). These affect individuals of all ages and may have varying degrees of severity. They are diagnosed with physical examination, imaging, ultrasound or computed tomography (CT). Surgical drainage should always be performed in a classic or percutaneous method early. Objective: To analyze the clinical efficacy of percutaneous treatment and surgical drainage in dental abscess Materials and methods: Cross-sectional study was carried out from January 2015 to December 2019. Medical records were reviewed in the Head and Neck Surgery Section of our Hospital of all patients who required hospitalization and were subjected to surgical and/or percutaneous drainage due to the presence of cervical abscess of dental origin. Results: 174 patients were analyzed. Average age was 36 +/- 2 years old. Only 37% were performed open surgical drainage. The rest of them were percutaneous drainage. 25% showed any signs of airway engagement (severity scale 3). Only 2 patients had mediastinitis who required urgent drainage. Exodontics was performed on all patients during hospitalization Discussion: Cervical infections represent a potentially fatal type of infection if effective treatment is not initiated quickly. The main cause is DI that manifest as phlegmons or abscesses. Tooth decay is usually the source. Empirical antibiotic therapy should be established early and low-dose corticosteroids should be established when there is edema and/or trismus. These patients are treated with antibiotics (ampicillin sulbactam), accompanied by surgical treatment (percutaneous drainage or surgical drainage). The most feared complication is the progression of infection to the mediastinum (descending mediastinitis) and/or Ludwig's Angina. Conclusions: Surgical or percutaneous treatment are not protocolized. Open surgical drainage seems to be the first choice over airway compromise or non-passable collections of percutaneous drainage. For the rest of the patients, who are the majority, guided percutaneous drainage with ultrasound and serial form are the best option

Abscesso dentoalveolar crônico em paciente pediátrico com drenagem rara / Absceso dentoalveolar crónico en paciente pediátrico con drenaje raro / Chronic dentoalveolar abscess in a pediatric patient with rare drainage

RESUMO Introdução: As infecções do complexo maxillomandibular são corriqueiras na odontologia, podendo ser um quadro facilmente revertido, a depender da habilidade do profissional de diagnosticar e tratar precocemente, bem como da imunocompetência do paciente. Seu fator etiológico na grande maioria das vezes é de origem dentária, possuindo microbiota mista com presença de Streptococos e Peptostreptococos. Estas bactérias estão associadas ao processo de necrose pulpar e formação de abscesso dentoalveolar. Quando este quadro se desenvolve a partir dos molares inferiores, a disseminação ocorre normalmente pelo espaço vestíbulo bucal. No entanto, há casos que evadem o padrão, podendo um molar disseminar através dos espaços mastigador, mandibular, submandibular, sublingual e submentoniano. Objetivo: Relatar um caso de infecção odontogênica do dente 36, com disseminação atípica para o espaço submandibular em paciente pediátrico. Relato de caso clínico: Paciente do sexo feminino, 8 anos de idade, constou em seu histórico odonto-médico, junto a sua genitora, episódio de internamento para diagnóstico e tratamento da infecção em face. O diagnóstico de celulite foi determinado e a origem dentária descartada. Iniciou antibióticoterapia e após regressão teve alta. Após 9 meses apresentou reagudização do processo com disseminação para região submandibular. Através da história da doença atual, exame físico e radiográfico foi definido o diagnóstico de abscesso dentoalveolar crônico com disseminação e drenagem para o espaço submandibular, optando-se pela exodontia e antibióticoterapia. Conclusões: Faz-se importante o diagnóstico e tratamento precoce, afim de evitar a progressão para complicações mais severas, como a mediastinite e fasciíte necrosante(AU)

RESUMEN Introducción: Las infecciones del complejo maxilo-mandibular son comunes en la odontología, pudiendo ser un cuadro fácilmente revertido, que depende de la habilidad del profesional de diagnosticar y tratar precozmente, así como de la inmunocompetencia del paciente. Su factor etiológico en la gran mayoría de las veces es de origen dental, con microbiota mixta y presencia de Streptococos y Peptostreptococos. Estas bacterias están asociadas al proceso de necrosis pulpar y formación de absceso dentoalveolar. Cuando este cuadro se desarrolla a partir de los molares inferiores, la diseminación ocurre normalmente por el espacio vestíbulo bucal. Sin embargo, hay casos que evaden el estándar, pudiendo un molar diseminar a través de los espacios masticador, mandibular, submandibular, sublingual y submentoniano. Objetivo: Describir un caso de infección odontogénica proveniente de necrosis pulpar del diente 36, con diseminación atípica para el espacio submandibular en paciente pediátrico. Caso clínico: Paciente de sexo femenino, de 8 años, constó en su historia médica-dental, episodio de internamiento para diagnóstico y tratamiento de la infección en el rostro. Se determinó el diagnóstico de celulitis y tuvo el origen dental descartado. Se inició antibioticoterapia y se dio alta hospitalaria. Después de 9 meses presentó exacerbación del proceso con diseminación para región submandibular. A través de la historia de la enfermedad actual, examen físico y radiográfico se definió el diagnóstico de absceso dentoalveolar crónico con diseminación y drenaje para el espacio submandibular, y entonces fue posible optar por la exodoncia y antibioticoterapia. Conclusiones: Se hace importante el diagnóstico y tratamiento precoz, a fin de evitar la progresión para complicaciones más severas, como la mediastinitis y fasciitis necrosante(AU)

ABSTRACT Introduction: Infections of the maxillomandibular complex are common in dentistry and may be easily reversed, depending on the professional's ability to diagnose and treat promptly, as well as the patient's immunocompetence. In most cases their etiology is dental, i.e. a mixed microbiota with presence of Streptococci and Peptostreptococci. These bacteria are associated to the process of pulp necrosis and dentoalveolar abscess formation. When this condition develops from the lower molars, dissemination usually occurs through the buccal vestibular space. However, there are cases that do not follow this pattern, allowing a molar to spread through the buccal, mandibular, submandibular, sublingual and submental spaces. Objective: Report a case of odontogenic infection from pulp necrosis of the lower first molar (36) ​​with atypical dissemination to the submandibular space in a pediatric patient. Clinical case: Female 8-year-old patient with an episode of hospitalization for diagnosis and treatment of a facial infection, according to her medical / dental record. The infection was diagnosed as cellulitis and dental origin was discarded. Antibiotic therapy was started and the patient was discharged. After 9 months, the infection underwent a process of exacerbation with dissemination to the submandibular region. Analysis of the antecedents of the current condition, alongside physical and radiographic examination, led to the diagnosis of chronic dentoalveolar abscess with dissemination and drainage to the submandibular space, and the consequent indication of dental extraction and antibiotic therapy. Conclusions: Early diagnosis and treatment are vital to avoid progression to severer complications such as mediastinitis and necrotizing fasciitis(AU)

Uso do ultrassom na otimização do tratamento endodôntico: relato de caso / Use of ultrasonics to optimize endodontic treatment: case report

Objetivo: o objetivo do presente relato de caso foi demonstrar o emprego do ultrassom em diversas etapas do tratamento endodôntico de um segundo molar inferior com anatomia em forma de C, possibilitando um aumento na previsibilidade no tratamento em dentes com complexidades anatômicas. Relato de caso: paciente do sexo masculino, relatou sensibilidade dolorosa no lado direito inferior da face. O exame clínico mostrou ausência de vitalidade pulpar, e o exame radiográfico detectou a presença de lesão cariosa no dente #47, lesão periapical e uma anatomia em forma de C. Assim, o tratamento de escolha foi a necropulpectomia. Após abertura coronária, foi realizado o refinamento da câmara pulpar e das embocaduras dos canais, com ponta de ultrassom. O preparo biomecânico foi realizado com instrumento Reciproc 25.08 e Mtwo 40.04, sendo a agitação final do hipoclorito de sódio e do EDTA realizada com a ponta ultrassônica Irrisonic. A medicação intracanal empregada foi a pasta de hidróxido de cálcio. Após 15 dias, a medicação foi removida por meio de irrigação ultrassônica passiva, e os canais foram secos com pontas de papel absorvente esterilizadas. A obturação dos canais foi realizada com o cimento AH Plus, o qual foi inserido com espiral de Lentulo #40 e, em seguida, agitado por 1 minuto com ultrassom. Então, a técnica de obturação híbrida de Tagger foi realizada. Conclusão: o controle radiográfico após 1 ano e 8 meses mostrou o reparo total da lesão periapical, demonstrando que uso o ultrassom nas diversas etapas da terapia endodôntica pode contribuir para uma maior previsibilidade do tratamento (AU).

The aim of this case report was to describe the use of ultrasonic in several endodontics steps during root canal treatment of second C-shaped mandibular molar, favoring more predictable outcome of endodontic treatment of teeth with complex anatomy. A male patient reported painful symptoms on the right and lower side of the face. Clinical examination revealed absence of pulp vitality of tooth 47 and the radiographic examination showed carious lesion, apical periodontitis and C-shaped anatomy. Therefore, the necropulpectomy treatment was selected. After the coronal access, an ultrasonic tip was used to remove the irregularities of the pulp chamber. The root canal preparation was performed using Reciproc 25.08 and Mtwo 40.04 and a final passive ultrasonic irrigation of the sodium hypochlorite and EDTA was performed with Irrisonic tip. Calcium hydroxide paste was used as intracanal dressing, which was introduced by Lentulo #40 and ultrasonic agitated. After 15 days, a passive ultrasonic irrigation was performed to remove the intracanal dressing and the canals were dried with sterilized paper points. The root filling was performed with AH Plus sealer, which was introduced by Lentulo #40 in a electric motor at 350 rpm and ultrasonic agitated during 1 minute. Then, the hybrid Tagger technique was performed to root canal filling. The radiographic examination showed the suitable isthmus and lateral canals filling. After 1 year and 8 months, the radiographic examination revealed complete apical healing, showing that the use of ultrasonic in several steps of endodontic treatment can favor a more predictable outcomes (AU).

Desafios da abordagem interdisciplinar de indivíduo cardiopata grave com abcesso odontogênico agudo / Challenges of the interdisciplinary approach in an individual with severe heart disease and acute dental abcess

Os indivíduos sistemicamente comprometidos e com múltiplas comorbidades são um desafio para a abordagem cirúrgica. Pacientes com flutter atrial fazem uso de anticoagulantes para diminuir o risco de eventos tromboembólicos, porém há maior risco de hemorragia durante procedimentos cirúrgicos. As infecções de origem odontogênica podem ter disseminação hematogênica e agravar ainda mais o quadro clínico geral do indivíduo. A abordagem cirúrgica deve sempre visar à segurança e à qualidade de vida do paciente, levando em consideração os riscos e benefícios do procedimento e o preparo do profissional frente a possíveis acidentes e complicações, haja vista o risco de mortalidade perioperatória. O presente caso relata o desafio de estabelecer plano de tratamento e conduta diante de infecção odontogênica em indivíduo cardiopata grave polimedicado ASA IV com histórico de doença renal crônica sob hemodiálise, hipertensão arterial sistêmica, diabetes mellitus, anemia, insuficiência coronariana, flutter atrial, aterosclerose e pé diabético. Para o procedimento sob anestesia geral, foi instituída a terapia de ponte prévia, utilização de medidas hemostáticas locais e antibioticoterapia pré e pós-operatória. A atuação interdisciplinar mostrou-se essencial para estabelecer critérios de segurança e decidir o melhor momento para a atuação cirúrgica

Systemically compromised individuals with multiple comorbidities represent a challenge in terms of the surgical approach. Patients with atrial flutter take anticoagulants to reduce the risk of thromboembolic events, but there is a greater risk of hemorrhaging during surgical procedures. Infections of odontogenic origin may involve hematogenous dissemination and further aggravate the patient's overall clinical condition. The surgical approach should always target the patient's safety and quality of life, considering the risks and benefits of the procedure and the professional's preparedness to cope with possible accidents and complications, given the risk of perioperative mortality. This is a case report of the challenge of establishing a treatment plan and course of action for dental infection in an ASA IV polymedicated patient with a history of chronic kidney disease undergoing hemodialysis, systemic arterial hypertension, diabetes mellitus, anemia, coronary insufficiency, atrial flutter, atherosclerosis and diabetic foot. Prior bridge therapy, use of local hemostatic measures, and pre- and postoperative antibiotic therapy were instituted for the procedure to be carried out under general anesthesia. Interdisciplinary action has proved to be essential for establishing safety criteria and deciding on the best time for surgical intervention

Guided endodontics: a case report of maxillary lateral incisors with multiple dens invaginatus

Navigation of the main root canal and dealing with a dens invaginatus (DI) is a challenging task in clinical practice. Recently, the guided endodontics technique has become an alternative method for accessing root canals, surgical cavities, and calcified root canals without causing iatrogenic damage to tissue. In this case report, the use of the guided endodontics technique for two maxillary lateral incisors with multiple DIs is described. A 16-year-old female patient was referred with the chief complaint of pain and discoloured upper front teeth. Based on clinical and radiographic findings, a diagnosis of pulp necrosis and chronic periapical abscess associated with double DI (Oehler's type II) was established for the upper left lateral maxillary incisor (tooth #22). Root canal treatment and the sealing of double DI with mineral trioxide aggregate was planned for tooth #22. For tooth #12 (Oehler's type II), preventive sealing of the DI was planned. Minimally invasive access to the double DI and the main root canal of tooth #22, and to the DI of tooth #12, was achieved using the guided endodontics technique. This technique can be a valuable tool because it reduces chair-time and, more importantly, the risk of iatrogenic damage to the tooth structure.

Relación entre la enfermedad Periodontal y enfermedad cardiovascular. La necesidad de un protocolo de manejo / Relationship between Periodontal disease and cardiovascular disease. The need for a management protocol

Resumen La enfermedad periodontal y la enfermedad cardiovascular son dos de las enfermedades más prevalentes en la población mundial. Son ambas enfermedades de alto impacto en la salud pública. La enfermedad periodontal se define como una inflamación crónica de los tejidos que dan soporte a los dientes causada por bacterias bacilos gram negativos y espiro quetas que se generan en biofilms alrededor de los dientes. La prevalencia de la periodontitis severa va desde el 1% en pacientes entre 20 y 29 años hasta de 39% en pacientes mayores de 65 años. La presencia de microorganismos genera una respuesta inflamatoria local y sistémica. La producción de reactantes de fase aguda y mediadores proinflamatorios aumenta el riesgo de inflamación en las placas ateroescleróticas haciéndolas propensas a ruptura. Existe además lo po sibilidad de la entrada de bacterias al torrente sanguíneo, dichas bacteremias se han relacionado con la posibilidad de endocarditis infecciosa. Estudios epidemiológicos han demostrado un aumento del riesgo de enfermedad cardiovascular en pacientes con enfermedad periodontal activa, independientemente de otros factores de riesgo que comparten ambas patologías. El riesgo relativo varía entre diferentes autores y trabajos realizados pero está cercano al 19% como lo demos tró Wei-Dong en su metanalisis. El efecto de la periodontitis se ha evidenciado en otros aspectos del espectro clínico de la enfermedad cardiovascular como lo son la alteración de la actividad insulínica, glicogénesis hepática y alteración de la microflora intestinal que lleva a procesos de inflamación sistémica y cambios metabólicos. Por estas razones es aconsejable realizar una revisión exhaustiva de la condición dental de los pacientes en riesgo de enfermedad cardiovascular. En aquellos con datos de enfermedad activa se aconseja la extracción y reparación de piezas dentales. El uso de clorhexidina es aconsejable como parte del tratamiento de la enfermedad así como la prevención de la misma en pacientes de riesgo o que vayan a ser sometidos a procedimientos quirúrgicos. En casos especiales se aconseja profilaxis antibiótica para prevenir la endocarditis infecciosa.

Abstract Relationship between Periodontal disease and cardiovascular disease. The need for a management protocol Periodontal disease and cardiovascular disease are two of the most prevalent diseases in the world population. Both diseases have high impact on public health. Periodontal disease is defined as a chronic inflammation of the tissues that support the teeth caused by gram-negative bacilli bacteria and spirochetes that are generated in biofilms around the teeth. The prevalence of severe periodontitis ranges from 1% in patients between 20 and 29 years old to 39% in patients older than 65 years. The presence of microorganisms generates a local and systemic inflammatory response. The production of acute phase reactants and proinflammatory mediators increases the risk of inflammation in atherosclerotic plaques making them prone to rupture. There is also the possibility of entrance of bacteria into the bloodstream and bacteremias have been linked to the possibility of infective endocarditis. Epidemiological studies have shown an increased risk of cardiovascular disease in patients with active periodontal disease, independently of other risk factors that share both pathologies. The relative risk varies between different authors and works performed but is close to 19% as demonstrated by Wei-Dong in his meta-analysis. The effect of periodontitis has been evidenced in other aspects of the clinical spectrum of cardiovascular disease such as the alteration of insulin activity, hepatic glycogenesis and alteration of the intestinal microflora that leads to processes of systemic inflammation and metabolic changes. For these reasons it is advisable to carry out a comprehensive review of the dental condition of patients at risk for cardiovascular disease. In those with active disease data suggest it is appropriate to remove and repair dental pieces. The use of chlorhexidine is advisable as part of the treatment of the periodontal disease as well as the prevention in patients at risk or who will undergo surgical procedures. In special cases antibiotic prophylaxis is recommended to prevent infective endocarditis.

Non-surgical endodontic retreatment in periapical abscess: A case report

@#Endodontic failure affects the teeth and surrounding tissues. This is a case of a 62-year-old female with a chief complaint of pain and swelling occurring frequently in the upper left teeth for 6 months. The tooth was treated a year ago. Nonsurgical endodontic retreatment was carried out and observed for 4 months. The size of the lesion reduced significantly during the healing evaluation. This case report aimed to show the management of a non-surgery endodontic retreatment in periapical abscess using a rotary instrument.

Common pitfall of plastic surgeon for diagnosing cutaneous odontogenic sinus

Dental origins are a common cause of facial cutaneous sinus tracts. However, it can be easily overlooked or misdiagnosed if not suspected by a surgeon who is not familiar with dental origins. Cutaneous odontogenic sinuses are typically nodulocystic lesions with discharge and are most frequently located on the chin or jaw. This article presents two cases of unusual cutaneous odontogenic sinus presentations, as deep dimpling at the middle of the cheek. The patients were undergone surgical excision of sinus tract and dimpling immediate before and after treatment of causal teeth and the lesions resolved without recurrence. Surgeons should consider dental origins of facial dimpling lesions with discharge and provide appropriate treatment.