이장재 도포 방법에 따른 표백제의 치경부 누출에 대한 연구
The study on the leakage of bleaching agents through cervical area according to the basing method
김성철, 윤태철, 조전,
소속 상세정보
김성철 ( ) - 연세대학교
윤태철 ( ) - 연세대학교
조전 ( ) - 연세대학교
KMID : 0362319950200010250
Abstract
Bases have been used in order to prevent the leakage of bleachingagents through dentinal tubules in bleached teeth.
But the proximal surfaces where the actual resorption takes place have not been protected.
The purpose of this study was to compare the conventional basing method with the basing of the labial and two proximal surfaces to the cementoenamel junction.
@ES The bases were placed after conventional root canal treatment.
@EN Group I : 2mm thickness bases were placed to the level of labial cementoenamel junction line.
Group II : 2mm thickness bases were placed to the level of all c-e J lines including cervical area.
After placement of sodium perborate and 30% hydrogen peroxide mixtureinto the teeth, the changes of pH were measured.
@ES The results were as follows.
@EN 1. Group II showed smaller leakage of bleaching agents and was statistically significant difference compared to Group I.(p<0.05)
2. Group I showed no statistically significant difference compared to the control group. (p>0.05)
3. There were no significant among the upper and lower teeth groups in each group and between the groups.(p>0.05)
According to the above results, it was considered that basing of thelabial and proximal surfaces to the cementoenamel junction can reduce the leakage of bleaching agents during bleaching procedure of pulplessteeth.
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