RESEARCH ARTICLE


Effect of Repeated Simulated Disinfections by Microwave Energy on the Complete Denture Base Adaptation



Rafael L.X. Consani1, *, Rose Y Iwasaki2, Marcelo F Mesquita3, Wilson B Mendes4, Simonides Consani5
1 Department of Prosthodontics and Periodontics, Piracicaba Dentistry School, State University of Campinas, Piraci-caba, SP, Brazil
2 Under Graduate Student, Piracicaba Dentistry School, State University of Campinas, Piracicaba, SP, Brazil
3 Department of Prosthodontics and Periodontics, Piracicaba Dentistry School, State University of Campinas, Piracicaba, SP, Brazil
4 Department of Clinics, Dentistry School of the Itauna University, Itauna, MG, Brazil and
5 Department of Restorative Dentistry, Piracicaba Dentistry School, State University of Campinas, Piracicaba, SP, Brazil


Article Metrics

CrossRef Citations:
0
Total Statistics:

Full-Text HTML Views: 2394
Abstract HTML Views: 1188
PDF Downloads: 255
Total Views/Downloads: 3837
Unique Statistics:

Full-Text HTML Views: 683
Abstract HTML Views: 666
PDF Downloads: 181
Total Views/Downloads: 1530



© Consani et al.; Licensee Bentham Open.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.5/), which permits unrestrictive use, distribution, and reproduction in any medium, provided the original work is properly cited.

* Address correspondence to this author at the Faculdade de Odontologia de Piracicaba, UNICAMP, Av. Limeira, 901, 13414-903 - Piracicaba, SP, Brazil; E-mail: rconsani@fop.unicamp.br


Abstract

This study evaluated the effect of repeated microwave disinfections on the adaptation of the maxillar denture base using 2 different flask closure methods. Twenty stone cast-wax base sets were prepared for flasking by traditional cramp or RS system methods. Five bases for each method were submitted to 5 repeated simulated disinfections in a microwave oven with 650W for 3 minutes. Control bases were not disinfected. Three transverse cuts were made through each stone cast-resin base set, corresponding to canine, first molar, and posterior region. Measurements were made using an optical micrometer at 5 points for each cut to determine base adaptation: left and right marginal limits of the flanges, left and right ridge crests, and midline. Results for base adaptation performed by the flask closure methods were: traditional cramp (non-disinfected = 0.21 ± 0.05mm and disinfected = 0.22 ± 0.05mm), and RS system (non-disinfected = 0.16 ± 0.05 and disinfected = 0.17 ± 0.04mm). Collected data were submitted to ANOVA and Tukey test (α=.05). Repeated simulated disinfections by microwave energy did not cause deleterious effect on the base adaptation, when the traditional cramp and RS system flask closure methods were compared.

Key Words: Denture base, adaptation, microwave disinfection, flask closure.