Evaluation of Bond Strength and Fracture Load of Teeth With Flared Root Canals Restored With Prefabricated, Anatomical, and Computer-aided Design and Computer-aided Manufacturing Fiber Posts.

PURPOSE: This study compared the use of anatomical glass fiber posts using bulk-fill composite resin with computer-aided design and computer-aided manufacturing (CAD/CAM) milled glass fiber post in oversized root canals, through bond strength (BS) and fracture resistance (FR) tests (fracture load). METHODS AND MATERIALS: A total of 48 mandibular premolars were selected, half of them had their crowns removed at the cemento-enamel junction (CEJ) and the other half were sectioned 2 mm above the CEJ. Subsequently, teeth were endodontically treated. After 1 week, the standard preparation of the canals was carried out, and the roots were divided into three groups (n=16), according to the use of different restorative techniques (control: prefabricated glass fiber post [PFP], direct anatomical glass fiber post [AFP], and CAD/CAM milled glass fiber post [MFP]). After luting procedures using Single Bond Universal and RelyX Ultimate (3M ESPE), for eight teeth in each group, six specimens were obtained (two slices from each root third: cervical, middle, and apical). For the remaining eight roots of each group, standardized preparations for metal-free crowns, milling of 5 mol% yttria-stabilized tetragonal zirconia polycrystalline, cementation of the crowns, and periodontal ligament simulation were performed. Then, for each group, the BS was evaluated through the push-out test, and the FR was evaluated in compression. The data obtained from BS were submitted to two-way analysis of variance (ANOVA; group vs root region) and Tukey (α=0.05) and from FR to one-way ANOVA (group) and Tukey (α=0.05). RESULTS: For the BS test, the MFP group was statistically superior to the PFP group in all root regions and was statistically superior to the AFP group only in the cervical region, being statistically similar in the middle and apical root regions. For the FR test, the MFP group was statistically superior to the PFP and AFP groups. CONCLUSION: The milled fiber post technique can be a legitimate alternative in the restoration of weakened roots with flared root canals.

Relato de vivência: Dia Rosa / Reporting experience: Pink Day

O Programa de Educação pelo Trabalho para a Saúde (PET-Saúde) faz parte das estratégias do Programa Nacional da Reorientação da Formação Profissional em Saúde (PRO-Saúde). Com a participação da Universidade Estadual de Ponta Grossa (UEPG), Estado do Paraná, o PRO-PETSaúde é um programa que visa consolidar a integração ensino-serviço-comunidade para fortalecer as estratégias do Sistema Único de Saúde. Este artigo é um relato de vivência de dois grupos PET-Saúde, apresentado por quatro petianas do curso de Odontologia da UEPG, que atuaram na Unidade de Saúde Silas Sallen. O relato faz menção ao Dia Rosa: um evento realizado no mês de agosto para a saúde e cuidado da mulher, com o objetivo principal de demonstrar a importância do exame preventivo do câncer de colo do útero. Além deste exame, o trabalho multiprofissional do PET-Saúde UEPG proporcionou a execução de atendimentos odontológicos, solicitação de mamografias e orientações sobre o auto-exame das mamas, higiene e auto-exame da boca. Mesmo diante de dificuldades, com a distribuição das atividades entre todos os integrantes do grupo e com a ajuda da Unidade de Saúde, juntamente a de patrocinadores, o evento se consolidou proporcionando uma experiência profissional valiosa com o conhecimento adquirido ainda durante a graduação (AU).

The Education Program through Health Work (PET-Health) is part of the strategies of the National Program of Reorientation of Health Professional Training (Pro-Health). With the participation of the State University of Ponta Grossa (UEPG) the PRO-PET-Health is a program that aims to consolidate the integration of teaching and community - service strategies for the purpose to strengthen the Unified Health System (SUS). This article is a reported experience of two groups PET-Health, presented by four students of Odontology UEPG, who worked at the Health Unit Silas Sallen. The report makes mention of Pink Day: an event held in August for the women`s health and care, the main objective was to demonstrate the importance of uterine cervical cancer preventive exam. Besides this exam, the multidisciplinary work of PET-Health UEPG provided the execution of dental care, request of mammograms and request guidance on self-breast exam, on selfmouth exam and on hygiene. Even face of difficulties, with the distribution of activities between all group members with the help of the Health Unit, along with sponsors, the event has established itself by providing valuable professional experience with knowledge gained during undergraduate studies (AU).