RESUMO Objetivo: Este trabalho analisou a influência da ativação ultrassônica de soluções irrigadoras na penetração do cimento obturador em canais laterais. Métodos: Cinquenta molares superiores (raiz palatina) foram distribuídos aleatoriamente em 5 grupos experimentais (n=10): Grupo 1 (EDTA 17% + agitação manual por 5 minutos), Grupo 2 (EDTA 17% + ativação ultrassônica por 15 segundos), Grupo 3 (NaOCl 1% + ativação ultrassônica por 15 segundos), Grupo 4 (EDTA 17% + ativação ultrassônica por 15 segundos e NaOCl 1% + ativação ultrassônica por 15 segundos) e Grupo 5 (controle negativo). Os canais laterais foram confeccionados nos terços médio e apical. A obturação ocorreu em sessão única e foram realizadas análises radiográficas e microscópicas para avaliar o grau de penetração do cimento obturador. Os dados foram analisados pelos testes de Mann-Whitney e Wilcoxon. Resultados: A análise radiográfica do terço apical e médio mostrou que os Grupos 2 e 4 apresentaram melhor penetração do cimento obturador. Já na análise microscópica, o Grupo 4 apresentou resultados superiores em relação aos demais grupos em ambos os terços. No terço apical, as análises radiográfica e microscópica exibiram diferenças significativas nas comparações entre o Grupo 4 com os Grupos 5 (p = 0,019) e 3 (p = 0,023) e entre o Grupo 5 com os Grupos 2 (p = 0,012), 3 (p = 0,038) e 4 (p = 0,019), respectivamente. Conclusão: Conclui-se que a ativação ultrassônica da solução irrigadora NaOCl 1% + EDTA 17% proporciona maior penetração do cimento endodôntico em canais laterais.

ABSTRACT Objective: This study analyzed the influence of the irrigating solutions ultrasonic activation on the obturator cement penetration into lateral root canals. Methods: Fifty maxillary molars (palatine root) were randomly assigned to 5 experimental groups (Group 1 (EDTA 17% + manual agitation for 5 minutes), Group 2 (EDTA 17% + ultrasonic activation for 15 seconds), Group 3 (NaOCl 1% + Ultrasonic activation for 15 seconds), Group 4 (EDTA 17% + ultrasonic activation for 15 seconds and NaOCl 1% + ultrasonic activation for 15 seconds) and Group 5 (negative control). The lateral root canals were made in the apical and middle third. The obturation occurred in a single session. The radiographic and microscopic analyzes were performed to evaluate the sealant cement penetration degree. Data were analyzed by the Mann-Whitney and Wilcoxon tests. Results: Apical and middle third radiographic analysis showed that Groups 2 and 4 presented better penetration of the sealant cement. In the microscopic analysis, Group 4 presented superior results in relation to the other groups in both thirds. In the apical third, radiographic and microscopic analyzes showed significant differences in the comparisons between Group 4 and Groups 5 (p = 0.019) and 3 (p = 0.023) and between Group 5 and Groups 2 (p = 0.012), 3 (P = 0.038) and 4 (p = 0.019), respectively. Conclusion: It was concluded that the ultrasonic activation of the NaOCl 1% + EDTA 17% irrigation solution provides greater penetration of the endodontic cement in lateral root canals.

AIM: To verify the orofacial and dental complex in individuals affected by leprosy concerning lesions, prevalence of dental caries and biofilm storage. METHODS: This study was performed on 56 patients with leprosy: 28 under treatment and 28 treated for the disease. A clinical form was prepared to include demographic and leprosy data. The prevalence of caries was analyzed using the decayed, missing, filled teeth (DMFT) index and oral hygiene was evaluated using the Plaque Control Record. The statistical significance was measured by chi-square and Student's t-test. RESULTS: The mean age was 56.4 years, and there was predominance of males. The treatment group had more women (Pearson ÷2=12.47, p=0.0004) and younger patients (Pearson ÷2=9.688, p=0.0079) than the healed group. As much as 30.4% of patients had orofacial complaints related to the disease. The most often observed variations of normality as racial melanin pigmentation (67.8%) and lingual varices (32.1%), and lesions such as atrophy of the anterior nasal spine (25%), inflammatory papillary hyperplasia (17.8%), and collapse of the nasal bridge (14.3%). There were no specific oral lesions among leprosy patients. The mean DMFT was 20.8 and the Plaque Control Record was 70.2%. The treated group had higher DMFT than the treatment group (Student's t p=0.003). CONCLUSIONS: The oral health status of individuals with leprosy is poor, with high levels of plaque and DMFT. No oral lesions associated with the disease were seen.