Objective: To evaluate incidence and intensity of postoperative pain in patients treated in the Residency Program in Endodontics at the State University of Maringá. The influence of factors inherent to the patient and treatment on preoperative pain was also the focus of our study. Material and Methods: 99 patients participated in this study and underwent non-surgical endodontic treatment. Initially, palpation, vertical and horizontal percussion were performed on the tooth to be treated. After the root canals filling, patients received a printed Numerical Rating Scale and were instructed to record the level of pain in the postoperative periods of 24, 48 and 72 hours. For each postoperative period, the patient recorded the values. A descriptive analysis of the data and a model of generalized estimation equations were performed to verify the relationship between the variables and postoperative pain, at a significance level of 5%. Results: During the follow-up period, the pain rates found were low represented by 16%, 11% and 7% in the periods of 24, 48, and 72h, respectively. In addition, the rates significantly decreased after 72h. Only one case of flare-up was recorded. Presence of pain on palpation, use of reciprocating file and use of 2.5% sodium hypochlorite influenced the results (p<0.05), increasing the changes of post-operative pain by 3.36, 0.4 and 0.2 times, respectively. Conclusion: Incidence and intensity of postoperative pain monitored in the residency program reduced significantly after 72 hours. Postoperative pain was associated with pain on palpation, use of reciprocating files and irrigation with 2.5% hypochlorite.

Introdução: A terapia fotodinâmica (TFD) se apresenta como uma técnica complementar ao tratamento endodôntico potencializando a desinfecção dos canais radiculares. Objetivo: O objetivo deste trabalho foi buscar estudos que utilizem a TFD como coadjuvante à terapia endodôntica e expor quais são mais recorrentes e propiciam melhores resultados na descontaminação, sugerindo um protocolo para o tratamento endodôntico. Método: O trabalho fundamentou-se em uma pesquisa realizada por meio de levantamento da literatura, mediante a consulta de artigos científicos nas bases de dados (PubMed, LILACS, e Scielo), e para a inclusão dos mesmos na revisão foram utilizados os critérios: artigos em inglês, originais e relevantes, pesquisas clínicas e laboratoriais, em dentes permanentes humanos e que relatassem o uso da terapia fotodinâmica como um tratamento coadjuvante à desinfecção dos canais. Resultados: Após a busca e exclusão pela leitura de títulos e resumos, teve-se 47 artigos, e após a leitura destes na íntegra, utilizando-se os critérios de exclusão, 14 foram utilizados para a revisão. As variáveis diferem nos estudos, no entanto, alguns parâmetros da TFD persistem nas pesquisas, apresentando bons resultados na redução das infecções endodônticas. O protocolo sugerido nesta revisão foi o uso do corante azul de metileno (15 e 25 µg/ml); tempo pré-irradiação de 5 minutos; laser diodo (660 nm) e potência de 100 mW; uso de fibra óptica e tempo de irradiação de 5 minutos. Conclusão: O uso da TFD proporciona uma redução bacteriana significativa associado ao preparo químico-mecânico, mostrando a possibilidade de aplicação deste protocolo que apresentou os melhores resultados.

Objective: To identify the epidemiological profile of accidents with biological material occurring in the dental clinic of a university in the southern region of the country. Methods: This is a descriptive, cross-sectional, retrospective study, which analyzed the reports of the Epidemiological Surveillance (SINAN) that occurred between March 2013 and December 2016. We analyzed the demographic variables and data related to the notification of accidents with biological material in the SINAN file, such as: age, sex, race, occupation (student, teacher, oral health technician, residents), time and place of occurrence of the accident, agent causing the perforation, total or partial use of PPE (personal protective equipment) at the time of accident, contact with organic material, contact agent and up-to-date vaccination against hepatitis B and treatment withdrawal. The data obtained were analyzed in EpiInfo Software. Statistical analysis included descriptive and inferential analysis, with significance level of p?0.05 and confidence interval (CI) of 95%. Results: In total there were 55 reports of accidents with piercing-cutting materials, of which 12 were men (21.82%) and 43 were women (78.18%). The mean age of the sample population was 24.2 (± 6.3) years. Regarding the occupation, 80% (n = 44) were undergraduate students, 12.72% were residents, 5.45%, teachers and 1.82%, oral health technicians. The majority (61.8%) were perforated during the dental procedure, 21.82% during material washing and 16.36% during surgery, but 20% claimed that they did not use any personal protective equipment. Regarding the organic material, there was a high prevalence of contact with blood, 70.9%, the needle was the main agent (n = 26; 47.3%). Still, 3.7% stated that they were not vaccinated against hepatitis B. In the bivariate analysis, the site of the accident was associated with the use of personal protective equipment (p = 0.01). Conclusion: The results showed that the number of incidents is high and can be attributed to several factors, such as lack of experience of students and the non-use of personal protective equipment. As a result, it is necessary to establish a permanent education program focused on education and accident prevention strategies to minimize these problems.

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