The Effect of Potassium Nitrate and Silica Dentifrice in the Surface of Dentin
|
Accession number;03A0361500
|
| Title;The Effect of Potassium Nitrate and Silica Dentifrice in the Surface of Dentin |
| Author;
ENOMOTO KEIKO
(School of Dentistry at Tokyo, Nippon Dental Univ., JPN)
KAMOI HISAHIRO
(School of Dentistry at Tokyo, Nippon Dental Univ., JPN)
ARAI TAKAKO
(School of Dentistry at Tokyo, Nippon Dental Univ., JPN)
WASAKI YOSHIKO
(School of Dentistry at Tokyo, Nippon Dental Univ., JPN)
OGURA KIICHIRO
(School of Dentistry at Tokyo, Nippon Dental Univ., JPN)
KAMOI KYUICHI
(School of Dentistry at Tokyo, Nippon Dental Univ., JPN)
|
Journal Title;Japanese Journal of Conservative Dentistry
|
Journal Code:Y0096A
|
ISSN:0387-2343
|
|
VOL.46;NO.2;PAGE.240-247(2003)
|
| Figure&Table&Reference;FIG.5, TBL.1, REF.37 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;In recent years, the hypersensitivity inhibiting effect of dentifrice containing potassium nitrate has been debated as a treatment for dentine hypersensitivity. In the present research, the changes in the dentine surface when using dentifrice containing potassium nitrate have been examined and compared. Standardized dentine blocks prepared using freshly extracted human teeth were used as research specimens. The dentine blocks were classified into three groups: group C (untreated group), group S (blocks coated with dentifrice containing potassium nitrate), and group N (blocks coated with dentifrice potassium nitrate containing silica as a polishing agent). The constituents of the dentifrice of groups S and N were analyzed using EPMA and the constituents of the dentine surface of each group were point analyzed. The dentine surface of each group was examined using SEM. The roughness of the surface of the dentine of each group was measured using Surfcom 2 B. The results were as follows. 1. The active ingredient in the dentifrice was calcium in the S group and silica in the N group. Potassium was found in the point analysis of the dentine cortex components in the S and N groups. 2. Measurement of the surface coarseness demonstrated that the coarseness increased in the following order: group C < group S < group N. 3. Examination of the dentine surface revealed adhesion of a crystalline foreign substance to the dentinal tubule openings and closure of the dentinal tubules in the group S. In the group N, there was significant accumulation of a crystalline foreign substance throughout the entire dentine surface as well as complete blockage of the dentinal tubules. The results suggest that potassium nitrate dentifrice containing silica as a polishing agent on the dentine surface may be effective for the treatment of dentine hypersensitivity. (author abst.) |
|
|
|
Related Articles;
|
|
