Effect of In-Office Bleaching Techniques and Topical Fluoride Application on Color and Surface Roughness of Two Types of Dental Ceramics (In-Vitro Study)
Dawood, L., Soliman, F., Abo El-Farag, S. (2020). Effect of In-Office Bleaching Techniques and Topical Fluoride Application on Color and Surface Roughness of Two Types of Dental Ceramics (In-Vitro Study). EKB Journal Management System, 66(Issue 2 - April (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics)), 1243-1251. doi: 10.21608/edj.2020.26509.1084
Lamia Dawood; Fatma Mohammad Soliman; Shaimaa Ahmed Abo El-Farag. "Effect of In-Office Bleaching Techniques and Topical Fluoride Application on Color and Surface Roughness of Two Types of Dental Ceramics (In-Vitro Study)". EKB Journal Management System, 66, Issue 2 - April (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics), 2020, 1243-1251. doi: 10.21608/edj.2020.26509.1084
Dawood, L., Soliman, F., Abo El-Farag, S. (2020). 'Effect of In-Office Bleaching Techniques and Topical Fluoride Application on Color and Surface Roughness of Two Types of Dental Ceramics (In-Vitro Study)', EKB Journal Management System, 66(Issue 2 - April (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics)), pp. 1243-1251. doi: 10.21608/edj.2020.26509.1084
Dawood, L., Soliman, F., Abo El-Farag, S. Effect of In-Office Bleaching Techniques and Topical Fluoride Application on Color and Surface Roughness of Two Types of Dental Ceramics (In-Vitro Study). EKB Journal Management System, 2020; 66(Issue 2 - April (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics)): 1243-1251. doi: 10.21608/edj.2020.26509.1084

Effect of In-Office Bleaching Techniques and Topical Fluoride Application on Color and Surface Roughness of Two Types of Dental Ceramics (In-Vitro Study)

Egyptian Dental Journal
Article 13, Volume 66, Issue 2 - April (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics), April 2020, Page 1243-1251  XML PDF (1.35 MB)
Document Type: Original Article
DOI: 10.21608/edj.2020.26509.1084
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Authors
Lamia Dawood email orcid 1; Fatma Mohammad Soliman2; Shaimaa Ahmed Abo El-Faragorcid 3
1Fixed Prosthodontics Dept., Faculty of Dentistry, Mansoura University, Mansoura, Egypt
2Fixed Prosthodontics Dept, faculty of Dentistry, Mansura University, Mansoura, Egypt.
3Fixed Prosthodontics Dept., Faculty of Dentistry, Mansoura University,Mansoura, Egypt
Abstract
Objective: This in-Vitro study was to assess the effect of 2 bleaching techniques & topical Fl application on color & Ra of 2 types of CAD/CAM ceramics.
Materials&methods:40 discs of 2 CAD/CAM ceramics were used IPS e.max(E)&Suprinity(S). Baseline measurements for color & Ra were taken using spectrophotometer &AFM. The specimens were divided into 2subgroups according to the bleaching agent used Zoom(Z) & Opalescence Boost 40%(O). 2 measurements of color & Ra were done: immediately after bleaching (I)& after 1week from the last bleaching session(D). Specimens were exposed to APF application & final measurements of color & Ra values were done. Results: Bleaching had a statistically significant effect on mean ∆E of all groups. No significant difference on mean ∆E of the 2ceramic materials. O showed higher statistically significant difference in ∆E than Z. S showed higher statistically significant difference in ∆E than E. Ceramic type & bleaching agents had a statistically significant effect on mean Ra. In I, SZ showed the highest mean Ra value while in D&F,EO showed the highest mean Ra. After F, Ra of ceramic materials demonstrated higher values than bleaching only. There was a +ve correlation between ∆E&Ra. Conclusions: The influence of in-office bleaching agents on color was material dependent. The changes in color & Ra were time dependent. Fl application following bleaching of ceramic materials showed higher color & Ra changes than bleaching only in groups. Recommendation: The ceramic restoration should be protected before bleaching&/or Fl application to avoid esthetic deterioration.
Keywords
CAD/CAM dental ceramic; bleaching agents; color stability; surface roughness; Acidulated Phosphate Fluoride
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