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VOLUME 16 , ISSUE 6 ( June, 2015 ) > List of Articles

RESEARCH ARTICLE

Nd:Yag Laser to obtain Irregularities on the Inner Surface of Porcelain

Mateus Rodrigues Tonetto, Edson Alves de Campos, Matheus Coelho Bandéca, Betina Grehs Porto, Thiago Soares Porto, Monica Barros da Silva, Sizenando de Toledo Porto-Neto, Welingtom Dinelli

Citation Information : Tonetto MR, de Campos EA, Bandéca MC, Porto BG, Porto TS, da Silva MB, de Toledo Porto-Neto S, Dinelli W. Nd:Yag Laser to obtain Irregularities on the Inner Surface of Porcelain. J Contemp Dent Pract 2015; 16 (6):451-457.

DOI: 10.5005/jp-journals-10024-1705

Published Online: 01-11-2015

Copyright Statement:  Copyright © 2015; The Author(s).


Abstract

Aim

The aim of this study was to evaluate the inner surface of two ceramic systems: IPS Empress II (Ivoclar Vivadent, Germany) and In-Ceram Alumina (Vita Zahnfabrick, Germany) submitted to surface treatments, especially by Nd:YAG laser.

Materials and methods

Fifty samples were prepared in pellet form for each ceramic system according to manufacturers’ specifications. The samples were stored at room temperature and then be subjected to surface treatment: without treatment (T0) (control), hydrofluoric acid-etched (T1), hydrofluoric acidetched associated with the airborne particle-abraded (T2); CoJet system (T3), Nd:YAG laser (T4). The data were performed the statistical analysis by ANOVA and Tukey's test (p < 0.001).

Results

The group control (T0) of the ceramics, the analysis showed the lowest roughness values; for the System Alumina In-Ceram, treatment with hydrofluoric acid (T1), associated with hydrofluoric acid and airborne particle-abraded (T2) and Nd:YAG laser (T4), had no statistically significant difference, whereas for the IPS Empress System II treatment with hydrofluoric acid (T1) and hydrofluoric acid associated with airborne particle-abraded (T2), had no statistically significant difference between the system and also CoJet (T3) and hydrofluoric acid associated with the airborne particle-abraded (T2). Photomicrographs of scanning electron microscopy showed different characteristics to the treatments for each ceramic system.

Conclusion

The IPS Empress II had the appearance of favoring the retention when treated with hydrofluoric acid, as well as its association with the airborne particle-abraded. Uncertainty in Alumina, treatment with hydrofluoric acid associated with the airborne particle-abraded and CoJet system and provided a surface with irregularities. With respect to the laser further studies should be performed for parameters that are ideal for your application.

Clinical relevance

The ceramic restorations are attractive due of their excellent esthetics and the ability to stay for long periods. However, the retention of ceramic requires further study.

How to cite this article

Porto TS, Porto BG, de Campos EA, de Toledo Porto-Neto S, da Silva MB, Bhandi SH, Tonetto MR, Dinelli W, Bandeca MC. Nd:Yag Laser to obtain Irregularities on the Inner Surface of Porcelain. J Contemp Dent Pract 2015;16(6):451-457.

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