Chlorhexidine varnish가 법랑질의 탈회예방에 미치는 영향 = THE PREVENTIVE EFFECT OF CHLORHEXIDINE VARNISH ON ENAMEL DEMINERALIZATION

다국어 초록 (Multilingual Abstract)

The intention of this study was to investigate the preventive effect of chlorhexidine varnish on enamel demineralization. The sample consisted of 57 first premolars scheduled to be extracted for orthodontic purposes. The control group (N=10) was left untreated and the experimental groups were worn with specially designed stainless steel orthodotic bands on premolar for plaque accumulation. The group(N=9) was worn band only, the group 2 (N=19) was applied with chlorhexidine varnish for one time, and the group 3(N=19)was applied with chlorhexidine varnish for 3 times once a week. After 4 weeks of experimental periods, every specimenwere examined by SEM and Vickers hardness test to evaluate and compare the degree of enamel decalcification.
The results were as follows:
1. Although SEM revealed various degree of enamel demineralization in every experimental groups, the group 1 showed more severe demineralizations than the group 2and 3.
2. The mean Vickers Hardness Numbers measured in this study seemed to reveal that there was a statistically significant difference between the control goup and the group 1 (p<0.05), and also a significant defference between the group 1 and the group 2,3(p<0.05).
And there was no significant difference between the group 2 and the group 3 (P>0.05).
3. The results of VHN did not deemed to show a statistically significant difference between maxillary premolar and mandibular premolar in both group 2 and group 3 (p>0.05).