Influence of operating microscope in the sealing of cervical perforations.

Autor:	Schmidt BS; Department of Conservative Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil., Zaccara IM; Department of Conservative Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil., Reis Só MV; Department of Conservative Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil., Kuga MC; Department of Restorative Dentistry, Araraquara Dental School, UNESP - Paulista State University, Araraquara, Brazil., Palma-Dibb RG; Department of Restorative Dentistry, Ribeirão Preto Dental School, USP - São Paulo University, Ribeirão Preto, São Paulo, Brazil., Kopper PM; Department of Conservative Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
Jazyk:	angličtina
Zdroj:	Journal of conservative dentistry : JCD [J Conserv Dent] 2016 Mar-Apr; Vol. 19 (2), pp. 152-6.
DOI:	10.4103/0972-0707.178695
Abstrakt:	Context: Accidental root canal perforations are among the main complications of endodontic treatment. Aim: This study evaluated the influence of operating microscope (OM) in the marginal adaptation of mineral trioxide aggregate (MTA) (Angelus(®)) and glass ionomer (Vitremer) inserted into cervical perforations. Materials and Methods: Perforations were made in the cervical third of the buccal wall of the root canal in mandibular incisors. Next, the teeth were divided into four groups (N = 10): MG - MTA without OM; VG - Vitremer without OM; MOMG - MTA with OM; VOMG - Vitremer with OM. The perforations were sealed according to the group and the teeth were prepared for analysis by confocal laser scanning microscope. Images of perforation region (1,024×) were made and the gap presented by the materials was measured using the Image J program. LEXT OLS4100 three dimensional (3D) measuring laser microscope measured the volumetric misfit. Data of gap were analyzed by Kruskal-Wallis and Dunn's tests. Analysis of variance (ANOVA) and Tukey's tests compared the volumetric misfits. Results: The results showed lower volume and gap in the interface dentin/material in VOMG compared to the other groups (P < 0.05). Conclusion: The use of OM improved the quality of cervical perforations sealed with Vitremer, being indicated in clinical situations of iatrogenic cervical perforations.
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu