| Full text | |
| Author(s): |
Pazos, Julia Margato
;
Wajngarten, Danielle
;
Dovigo, Livia Nordi
;
Garcia, Patricia Petromilli Nordi Sasso
Total Authors: 4
|
| Document type: | Journal article |
| Source: | EUROPEAN JOURNAL OF DENTAL EDUCATION; v. 24, n. 3, p. 8-pg., 2020-05-02. |
| Abstract | |
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) | |
| FAPESP's process: | 15/24269-4 - Magnification effect on work posture in Dentistry |
| Grantee: | Patrícia Petromilli Nordi Sasso Garcia |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 15/21469-2 - Effect of magnification lenses on ergonomic working posture during performing procedures preclinicals |
| Grantee: | Júlia Margato Pazos |
| Support Opportunities: | Scholarships in Brazil - Scientific Initiation |