Journal of the Korean Academy of Pediatric Dentistry 2005;32(3):472-480.
Published online August 31, 2005.
A STUDY ON THE EFFECTIVE PENETRATION OF ETCHING AGENT IN OCCLUSAL PIT & FISSURE
Seong-Ryong Lee, Sang-Ho Lee, Chang-Seop Lee, Nan-Young Lee
Department of Pediatric Dentistry, College of Dentistry, Chosun University 
교합면 소와 열구에서 산부식 제재의 효과적인 침투 방법에 대한 연구
이성룡, 이상호, 이창섭, 이난영
조선대학교 치과대학 소아치과학교실
Correspondence:  Sang-Ho Lee,  Tel: 062-220-3860, Email: shclee@chosun.ac.kr
Abstract
The purpose of this study was to investigate the effective penetration methods of acid etching agents in the pit and fissures on the occlusal surface. Extracted maxillary first and second premolars were divided into 4 groups : to Group I only acid etching agent was applied, to Group II ultrasonic scaler as well as acid etching agent were applied, to Group III after fissurotomy acid etching agent was applied, and to Group IV after fissurotomy the same process performed with Group II. The comparison between the 4 groups by the use of scanning electron microscope showed the results as follows : 1. Comparing each groups with regard to the penetration rate(%) of acid etching agents, Group III and Group IV showed improved penetration rate(%) compared with Group I. Group II made no significant different results from Group I, but had somewhat better penetration rate(%). 2. Comparing each groups with regard to the penetration rate(%) of acid etching agents according to regions within fissures, Group III and Group IV showed more improved penetration rate than Group I in the mesial pit and distal pit. However, no significant difference between each groups was showed in the middle fissure.
Key Words: Acid etching agents, Pit and fissures, Penetration rate


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