Implementing magnification during pre-clinical training: Effects on procedure quality and working posture

Autor(es)

Pazos, Julia Margato ; Wajngarten, Danielle ; Dovigo, Livia Nordi ; Garcia, Patricia Petromilli Nordi Sasso

• Tipo de documento: Artigo Científico
• Fonte: EUROPEAN JOURNAL OF DENTAL EDUCATION; v. 24, n. 3, p. 8-pg., 2020-05-02.

Resumo

Objective The objective of this study was to evaluate the effects of magnification on the quality of two pre-clinical procedures, class I cavity preparations and composite resin restorations, and to evaluate the working posture. Methods This was an experimental laboratory study. The response variables were the quality of cavity preparations and Class I restorations as well as the working posture adopted during the execution of these procedures. The independent variables were the magnification system under four levels (unaided visualisation, the use of a simple loupe, the use of a Galilean loupe and the use of a Keplerian loupe) and the artificial teeth treated. Class I cavity preparations and restorations (N = 320) were performed using standardised procedures, and the quality achieved was evaluated using pre-established criteria. Working posture was recorded using digital video cameras and was evaluated using the Compliance Assessment of Dental Ergonomic Posture Requirements (CADEP). A two-factor analysis of variance (ANOVA) and multiple comparison test were performed (alpha = 0.05). Results The quality of cavity preparation did not differ significantly amongst the different magnification systems (P = 0.082). Galilean and Keplerian systems had a positive impact on restoration quality only for the left mandibular first molar (P = 0.04). Higher posture scores were observed when Galilean and Keplerian loupes (P = 0.01) were used, regardless of the tooth being treated. Conclusion The use of Galilean and Keplerian magnification lenses did not affect the quality of the pre-clinical procedures performed whilst improved the scores of ergonomic posture. (AU)

• Processo FAPESP: 15/24269-4 - Efeito da magnificação na postura de trabalho em Odontologia
• Beneficiário: Patrícia Petromilli Nordi Sasso Garcia
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 15/21469-2 - Efeito da magnificação na postura ergonômica de trabalho durante a execução de procedimentos pré-clínicos
• Beneficiário: Júlia Margato Pazos
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica