RESUMO Objetivo: O objetivo do presente estudo é avaliar a ocorrência de defeitos dentinários na superfície apical após instrumentação rotatória em diferentes comprimentos de trabalho com o instrumento Trunatomy Prime, com ou sem o uso de lima glide path. Métodos: Vinte pré-molares inferiores humanos unirradiculares foram selecionados e divididos em 2 grupos experimentais (n=10). Grupo GTP (Glide Path + Trunatomy Prime), grupo TP (Trunatomy Prime). Resultados: Para verificar a concordância entre os examinadores, foi realizado o teste Kappa. Posteriormente, os resultados foram submetidos ao teste de normalidade de Shapiro-Wilk. A amostra apresentou comportamento anormal e foi submetida ao teste não paramétrico de Mann Whitney com nível de significância de 5%. Não foi encontrada diferença significativa entre os grupos. Conclusão: Conclui-se que não houve relação causal com a formação de defeitos dentinários com e sem o uso de instrumentos de glide path em diferentes limites de instrumentação com instrumentos do sistema Trunatomy. Objetivo Prime Métodos prémolares pré molares n=10. n10 n n=10 . 10 (n=10) Glide , Prime) Prime. Resultados examinadores Kappa Posteriormente ShapiroWilk. ShapiroWilk Shapiro Wilk. Wilk Shapiro-Wilk 5 5% Conclusão Concluise Conclui se n1 n=1 1 (n=10 n= (n=1 (n= (n

ABSTRACT Objective: The aim of the present study is to evaluate the occurrence of dentinal defects on the apical surface after rotary instrumentation at different working lengths with Trunatomy Prime system, with or without the use of a glide path file. Methods: Twenty human single-rooted mandibular premolars were selected and divided into 2 experimental groups (n=10). GTP group (Glide Path + Trunatomy Prime), the TP group (Trunatomy Prime). Results: To check the agreement between the examiners, the Kappa test was performed. Subsequently, the results were subjected to the Shapiro-Wilk normality test. The sample showed abnormal behavior and were subjected to the non-parametric Mann Whitney test with a significance level of 5%. No significant difference was found between the groups. Conclusion: It is concluded that there was no causal relationship with the formation of dentin defects with and without the use of glide path files at different limits of instrumentation with Trunatomy files. Objective system file Methods singlerooted single rooted n=10. n10 n n=10 . 10 (n=10) Glide Prime, , Prime) Prime. Results examiners performed Subsequently ShapiroWilk Shapiro Wilk nonparametric non parametric 5 5% Conclusion n1 n=1 1 (n=10 n= (n=1 (n= (n

Resumo estudo teve como objetivo investigar a relação entre doença sinusal e patologia perirradicular nos dentes posteriores superiores por meio de tomografia computadorizada de feixe cônico. As imagens posteriores da maxila de 395 dentes foram examinadas para patologia perirradicular, o seio maxilar para doença sinusal e a proximidade entre o ápice da raiz e o osso cortical do seio maxilar. Os dados foram submetidos ao teste de normalidade de Kolmogorov-Smirnov, teste de Kruskal-Wallis, teste qui-quadrado com correção de Bonferroni e análise de regressão logística. Foi assumido um nível de significância de 5%.nCerca de 46,6% dos dentes apresentavam patologia periapical envolvida com sinusopatia (46,6%). Dentre eles, o espessamento da mucosa sinusal > 3mm é o achado mais comum (59,3%). Não houve diferença entre os tipos de sinusopatias e as variáveis estudadas (p >0,05). Lesões periapicais nas raízes palatinas tiveram 2,17 vezes mais probabilidade de desenvolver doença sinusal do que outras raízes (p < 0,05). As mulheres tiveram 2,04 vezes menos probabilidade do que os homens de desenvolver sinusite (p<0,05). A distância ápice-chão e a presença ou ausência de tratamento endodôntico não foram significativamente associadas à sinusite. A patologia periapical pode estar relacionada a uma doença sinusal. cônico 39 KolmogorovSmirnov, KolmogorovSmirnov Kolmogorov Smirnov, Smirnov Kolmogorov-Smirnov KruskalWallis, KruskalWallis Kruskal Wallis, Wallis Kruskal-Wallis quiquadrado qui quadrado logística 5nCerca nCerca 5 466 46 6 46,6 46,6%. . (46,6%) eles mm 59,3%. 593 59,3% 59 3 (59,3%) p >0,05. 005 >0,05 0 05 >0,05) 217 2 17 2,1 0,05. 0,05 0,05) 204 04 2,0 p<0,05. p005 p<0,05 (p<0,05) ápicechão chão 4 46, (46,6% 59,3 (59,3% 00 >0,0 21 1 2, 0,0 20 p00 p<0,0 (p<0,05 (46,6 59, (59,3 >0, 0, p0 p<0, (p<0,0 (46, (59, >0 p<0 (p<0, (46 (59 p< (p<0 (4 (5 (p< (

Abstract This study aimed to investigate the association between maxillary sinus reactions and periradicular pathology in maxillary posterior teeth using cone-beam computed tomography. The maxillary posterior images of 395 teeth were examined for the presence of periradicular pathology, and the maxillary sinus disease. The proximity between the root apex and the cortical bone of the maxillary sinus using the linear measurement (mm) tool was used (RadiAnt, DICOM viewer, Poznan, Poland). The frequency found from maxillary sinus assessment was subjected to the Kolmogorov-Smirnov normality test, the Kruskal-Wallis test, the chi-square test with Bonferroni correction and a logistic regression analysis. A significance level of 5% was assumed. About 46.6% of the teeth showed a periapical pathology associated with an inflammatory reaction of the maxillary sinus. Among them, thickening of the maxillary sinus mucosa > 3 mm is the most common finding (59.3%). There was no difference between the types of maxillary sinus reactions and the variables studied (p >0.05). Periapical lesions on palatal roots were 2.17 times more likely to develop an inflammatory reaction than other roots (p < 0.05). Women were 2.04 times less likely to develop maxillary changes than men (p < 0.05). The distance between apex and floor and the presence or absence of endodontic treatment were not significantly associated with sinusitis. Periapical pathology could be related to maxillary inflammatory reaction of the sinus. conebeam cone beam tomography 39 disease (mm RadiAnt, RadiAnt (RadiAnt viewer Poznan Poland. Poland . Poland) KolmogorovSmirnov Kolmogorov Smirnov KruskalWallis Kruskal Wallis chisquare chi square analysis 5 assumed 466 46 6 46.6 them 59.3%. 593 59.3% 59 (59.3%) p >0.05. 005 >0.05 0 05 >0.05) 217 2 17 2.1 0.05. 0.05 0.05) 204 04 2.0 sinusitis 4 46. 59.3 (59.3% 00 >0.0 21 1 2. 0.0 20 59. (59.3 >0. 0. (59. >0 (59 (5 (

ABSTRACT La barodontalgia no es una patología en sí misma, sino un síntoma de un problema oral subclínico que, si bien es poco frecuente, puede afectar a pacientes sometidos a cambios en la presión atmosférica y afectar la seguridad de los vuelos. Este artículo pretende analizar las características clínicas de las patologías relacionadas con la etiología de la barodontalgia, así como los diagnósticos diferenciales, los tratamientos y la prevención. Se presenta el caso de un agente de la fuerza aérea brasileña que acudió a la Clínica Dental de la Fuerza Aérea Santos-Dumont reportando dolor en el maxilar anterior durante un vuelo. Se realizó un tratamiento de endodoncia seguido de cirugía perirradicular, con el fin de sellar rápidamente la lesión del hueso y evitar nuevos casos de barodontalgia. Este trabajo describe un procedimiento acertado para una lesión perirradicular resuelta por tratamiento quirúrgico para evitar nuevos casos de barodontalgia durante los vuelos. Además, destaca la importancia de profundizar en el conocimiento sobre este evento y la necesidad de llevar a cabo no solo una evaluación bucodental periódica de los miembros de las tripulaciones, además de ofrecerles tratamientos definitivos, con el fin de prevenir los accidentes aéreos.

ABSTRACT Barodontalgia is not a pathology but a symptom of a subclinical oral problem that, although rare, may affect patients subjected to atmospheric pressure changes and have an influence on flights. This paper aims to discuss the clinical characteristics of pathologies related to the etiology of barodontalgia, as well as differential diagnoses, treatments, and prevention. This paper reports a case of a Brazilian air force officer who went to the Santos Dumont Air Force Dental Clinic reporting pain in the anterior maxillary during a flight. An endodontic treatment followed by periradicular surgery was performed, in order to quickly seal the bone lesion and to avoid new cases of barodontalgia. This work demonstrated a successful approach of a periradicular lesion solved by surgical treatment in order to avoid new cases of barodontalgia during flights. In addition, this paper highlights the importance of deepening knowledge on this event and the need for periodic oral and dental assessment, as well as conclusive treatment in aircrew members in order to prevent aircraft accidents.

Abstract: Chemomechanical preparation is intended to clean, disinfect, and shape the root canal. This step is of utmost importance during treatment of infected teeth with apical periodontitis, because treatment outcome depends on how effectively the clinician eliminates bacteria, their products, and necrotic tissue that would serve as substrate for bacterial regrowth. Nonetheless, curvatures and complex internal anatomical variations of the root canal system can pose a high degree of difficulty in reaching these goals. In infected teeth, bacteria may persist not only in difficult-to-reach areas such as isthmuses, ramifications, dentinal tubules, and recesses from C-shaped or oval/flattened canals, but also in areas of the main canal wall that remain untouched by instruments. If bacteria withstand chemomechanical procedures, there is an augmented risk for post-treatment apical periodontitis. This article discloses the reasons why some areas remain unprepared by instruments and discusses strategies to circumvent this issue and enhance infection control during endodontic treatment/retreatment of teeth with apical periodontitis.

RESUMO Objetivo: Determinar a prevalência e a severidade da cárie dentária, ausências dentárias e restaurações pelo índice CPOD, tão bem como a eficiência dos programas de saúde bucal de pacientes com deficiência intelectual, com idades de 11 a 38 anos, que frequentavam a Associação de Pais e Amigos das Crianças Excepcionais-APAE Passo Fundo, Sul do Brasil. Métodos: A prevalência da cárie dentária foi avaliada pelo índice CPOD em 109 pacientes. A média e o desvio-padrão foram avaliados pela ANOVA unidirecional com nível de significância de 5%. Resultados: 47 dos estudantes avaliados eram do sexo feminino, e 62 do masculino, apresentando deficiência mental moderada, síndrome de Down, paralisia cerebral e epilepsia. A média do CPO-D foi de 3.93 para as idades de 11-14 anos, 3.47 para 15-19 anos, 4.74 para 20-30 anos e 5.68 para os pacientes com 31-40 anos. Não houve diferenças significativas entre o índice de CPOD, gênero e deficiência intelectual. Conclusão: Os pacientes apresentaram higiene bucal aceitável dentro das suas limitações, sugerindo que o programa de prevenção e tratamento odontológico desenvolvido no APAE-PF/RS poderia ser utilizado como modelo de atenção à saúde para pacientes com deficiência intelectual em outras instituições e outras cidades.

ABSTRACT Objective: This study was conducted to determine the prevalence and severity of dental caries, missing and restored teeth (DMFT) and the efficiency of oral health programs for patients with intellectual disabilities, from age 11 to 38, who attended at the Association of Exceptional Children’s Parents and Friends (APAE) in Passo Fundo, southern Brazil. Methods: The prevalence of dental caries was assessed by DMFT in 109 patients. The mean and standard deviation were evaluated by One-way ANOVA with 5% significance level. Results: 47 of the evaluated students were female and 62 male, with moderate mental disability, Down syndrome, cerebral paralysis and epilepsy. The DMFT average was 3.93 for 11-14 years, 3.47 for 15-19 years, 4.74 for 20-30 years and 5.68 for the group 31-40 years. There were no significant differences among the DMFT index, gender and intellectual disability for the groups. Conclusion: Patients had acceptable oral hygiene within their limitations, suggesting that prevention and dental care program developed in APAE-PF/RS could be used as a model for health care for patients with intellectual disabilities in other institutions and other cities.

Resumo Introdução O preparo cervical é uma etapa importante da instrumentação do sistema de canais, mas pode levar ao alargamento excessivo ou rasgo da raiz. Objetivo Avaliar, em tomografia computadorizada cone beam, da espessura remanescente de dentina cervical da raiz mesial de molares inferiores, após o preparo com diferentes técnicas: Gates-Glidden (ordem crescente); Gates-Glidden (ordem decrescente); LA Axxess e Easy Pro-Design. Material e método Foram selecionadas 40 raízes mesiais de molares inferiores, que foram escaneadas em tomógrafo cone beam antes e após o preparo. Das imagens tomográficas foram obtidos cinco cortes com intervalo de 1 mm a partir da furca e, então, mensurada a variação da espessura entre o canal radicular até a porção externa da raiz em software de análise. Resultado Avaliação dos diferentes níveis demonstraram ausência de significância dentro do mesmo grupo para o grupo das Gates-Glidden. Por outro lado, foi notada diferença para LA Axxess (p=0,002) e para Easy Pro-Design (p=0,005). Na avaliação entre os grupos, foi observada diferença em todos os níveis, sobretudo, para Gates-Glidden na ordem crescente (ANOVA e Tukey). Conclusão Considerando as limitações desse estudo, concluiu-se que o protocolo que apresentou maior desgaste da área de perigo cervical foi o da Gates-Glidden em ordem crescente, sendo que os demais grupos foram equivalentes (p>0,05).

Abstract Introduction Cervical preflaring is an important step of the canal system instrumentation, but can lead to excessive enlargement or root perforation. Objective Evaluate the remaining dentin thickness in the mandibular molars of mesial roots using cone beam computed tomography: Gates-Glidden (crown-down); Gates-Glidden (step-back); LA Axxess and Easy Pro-Design. Material and method Were selected 40 lower molars mesial roots, which were scanned in a cone beam CT scanner before and after preparation. Were obtained five sections of the CT images with an interval of 1 mm from the furcation, and measured the thickness variation between the root canal to the root external portion in analysis software. Result The evaluation of the different levels showed no significance within the same group for the Gates-Glidden group. On the other hand, were observed difference for LA Axxess (p=0.002) and Easy Pro-Design (p=0.005). In the intergroup analysis, were observed difference in all levels, especially for Gates-Glidden in the ascendant order (ANOVA and Tukey). Conclusion Within the limitations of these study, is possible to conclude that the protocol with greater wear in the cervical risk area was the Gates-Glidden in step-back sequence, as the other groups were equivalent (p>0.05).