Journal of the Korean Academy of Pediatric Dentistry 1999;26(2):437-445.
Published online May 31, 1999.
RELATIONSHIP BETWEEN LASER DOPPLER FLOWMETER OUTPUT AND STAGE OF ROOT DEVELOPMENT
 
치근 발육정도와 Laser Doppler Flowmeter 측정치의 상호 관련성
서완종, 김현정, 김영진, 남순현
경북대학교 치과대학 소아치과학 교실
Abstract
The purpose of this study was to evaluate the changes of laser doppler flowmeter output associated with stage of root development. Laser Doppler Flowmeter was done in 40 elementary students aged between 7 and 8 years and in 20 adults aged between 23 and 24 years. Among 40 elementary students, 20 had apical foramens with 1~2mm diameters and another 20 had ones with larger diameters than 2mm. The LDF values were analyzed with ANOVA and paired t-test. The results were as follows. 1. Immature root apecies group had a higher tendency than mature root apecies group in LDF values, but there was no statistical significance (p>0.05). 2. There was no statistical significance in LDF values comparing groups with immature root apecies (p>0.05). 3. There were no significant differences between right and left central incisors in LDF values (p>0.05).
Key Words: Laser Doppler flowmeter, pulp vitality test, immature root, open apex, pulp blood flow


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