Research Article
Volume 19 Issue 2 - 2020
Assessment of Color Stability and Surface Roughness of Esthetic Restorative Materials
Salah A Yousief1,2, Khaled Abdulrahman Abdullah Alshehri3, Maram Hameed Alharbi3, Ali Abdulrahman Ali Alshehri3, Mubarak Abdullah Algothmi3, Mohammed KA Tabash3, Mahmoud NM Allabban4, Ahmed M Elmarakby5,6*, Renad Eid Aljohani7 and Abeer Saleh Alanazi8
1Associate Professor, Department of Restorative Dental Sciences, AlFarabi Private College for Dentistry and Nursing, Jeddah, Kingdom of Saudi Arabia Saudi Arabia
2Assistant Professor in Fixed Prosthodontic Department, Faculty of Dental Medicine, Al-Azhar University, Assiute Branch, Egypt
3Prosthodontist at Al-Bandar Clinic Taif, Saudi Arabia
4Lecturer in Restorative Dental Science, AlFarabi Private College for Dentistry and Nursing, Jeddah, Kingdom of Saudi Arabia
5Assistant Professor at Restorative Dental Science, AlFarabi Colleges for Dentistry and Nursing, Riyadh, Kingdom of Saudi Arabia
6Lecturer of Operative Dentistry, Faculty of Dental Medicine, Al-Azhar University, Assiute Branch, Egypt
7General Practitioner Dentist, Saudi Arabia
8General Practitioner Dentist in Prince Mansour Military Hospital, Saudi Arabia
*Corresponding Author: Ahmed M Elmarakby, Assistant Professor at Restorative Dental Science, AlFarabi Colleges for Dentistry and Nursing, Riyadh, Kingdom of Saudi Arabia and Lecturer of Operative Dentistry, Faculty of Dental Medicine, Al-Azhar University, Assiute Branch, Egypt.
Received: December 19, 2019; Published: January 24, 2020




Abstract

Background: Recently composite inlays, onlays, veneers and crowns can be constructed by CAD/CAM techniques using prefabricated composite resin blocks manufactured under controlled conditions.

Objectives: This study was carried out aiming to shed the light on the effects of different oral media on the surface roughness and color changes of two esthetic restorations.

Materials and Methods: In this study a total of thirty disc samples were machine milled by the aid of CAD/CAM system. The samples were divided according to the material of construction into two main groups. Each group was composed of 15 samples as follows: Group I: constructed from milled composite resin blocks. Group II: constructed from milled feldspathic porcelain blocks. All sample groups were then immersed in 20ml of artificial saliva for 24 hours to be baseline assessment. Each group was further subdivided into three subgroups each of five samples according to the type of immersion media. The samples of subgroup (1) were immersed in the acid media for 12 days. For subgroup (2) the samples were immersed in topical fluoride agent for 6 hours. While for subgroup (3) the samples were immersed in the mouth wash for 12 hours. All immersion times were equivalent to consumption of the materials of immersion media for one year by the patient.

Results: Composite samples that immersed in mouth wash showed statistically significant higher Ra value compared to the ceramic samples that immersed in the mouth wash which showed statistically significant lower Ra value. Spectrophotometer measurements of all the groups and subgroups revealed statically significant higher mean ΔE values for ceramic groups than the composite resin groups. All changes in the color were clinically acceptable except for ceramic samples that immersed in acid media.

Conclusion: Clinically unacceptable color change (ΔE) was encountered with ceramic samples immersed in acid media while the color change (ΔE) of the remaining groups was acceptable for both materials.

Keywords: CAD/CAM System; Surface Roughness; Color Stability; Esthetic Restorative Materials

References

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Citation: Ahmed M Elmarakby., et al. “Assessment of Color Stability and Surface Roughness of Esthetic Restorative Materials”. EC Dental Science 19.2 (2020): 01-10.

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