Evaluation of the whitening and remineralization effects of a mixture of amorphous calcium phosphate, hydroxyapatite and tetrasodium pyrophosphate on bovine enamel.
10.11149/jkaoh.2016.40.2.92
- Author:
Young Eun LEE
1
;
Dong Ok PARK
;
Yun Sook JUNG
;
Keun Bae SONG
Author Information
1. Department of Dental Hygiene, Daegu Health College, Daegu, Korea.
- Publication Type:Original Article
- Keywords:
Amorphous calcium phosphate;
Hydroxyapatite;
Remineralization;
Tetrasodium pyrophosphate;
Whitening
- MeSH:
Calcium*;
Dental Enamel*;
Dentistry;
Durapatite*;
Fluorescence;
Microscopy, Confocal;
Microscopy, Electron, Scanning;
Water
- From:Journal of Korean Academy of Oral Health
2016;40(2):92-99
- CountryRepublic of Korea
- Language:English
-
Abstract:
OBJECTIVES: The purpose of the present study was to evaluate the whitening effect, morphological and structural changes, and remineralization of the enamel induced by 3 combined agents: amorphous calcium phosphate (ACP), hydroxyapatite (HA), and tetrasodium pyrophosphate (TSP). METHODS: The study was performed on 90 bovine enamel slabs, which were divided into the 6 groups: negative control-distilled water (Group 1); positive control-opalescence F (Group 2); 10% mixed agent (Group 3); 25% mixed agent (Group 4); 50% mixed agent (Group 5); and 100% mixed agent (Group 6). Changes in the shade of the enamel slabs were evaluated using Shade Eye-NCC. Morphological changes were assessed by scanning electron microscopy (SEM) and confocal laser scanning microscopy (CLSM) was used to determine the remineralizing effect of the three agents on enamel slabs. RESULTS: The change in shade of the enamel (ad*) was noted to increase significantly with increase in whitening frequency in all groups. The value of Δn* was significantly greater in all groups except for the negative control group (P<0.001). SEM revealed that the control group, Group 5, and Group 6 had similar morphologies. The fluorescence lesion areas in the 4 mixture-treated group were significantly smaller than those in the positive control group (P<0.001). CONCLUSIONS: These results showed that the mixture of ACP, HA, and TSP was highly effective for bovine enamel whitening and acted by inducing the remineralization of enamel. CLINICAL SIGNIFICANCE: We evaluated the applicability of a new mixture containing ACP, HA, and TSP. This mixture would be highly useful in aesthetic dentistry because of its whitening efficiency, which does not compromise the enamel's integrity.
