S-Space College of Dentistry/School of Dentistry (치과대학/치의학대학원) Dept. of Dentistry (치의학과) Journal Papers (저널논문_치의학과)
미세 물 흐름 측정장치의 개발과 상아세관액의 수력학에의 응용
DEVELOPMENT OF NANO-FLUID MOVEMENT MEASURING DEVICE AND ITS APPLICATION TO HYDRODYNAMIC ANALYSIS OF DENTINAL FLUID
- 이인복; 김민호; 김선영; 장주혜; 조병훈; 손호현; 백승호
- Issue Date
- 33:2, 2008
- Dentinal tubule; Water conductance; Dentin hypersensitivity; Oxalate; Self etching adhesive; Hydrodynamics
- This study was aimed to develop an instrument for real-time measurement of fluid conductance and to investigate the hydrodynamics of dentinal fluid. The instrument consisted of three parts; (1) a glass capillary and a photo sensor for detection of fluid movement, (2) a servo-motor, a lead screw and a ball nut for tracking of fluid movement, (3) a rotary encoder and software for data processing. To observe the blocking effect of dentinal fluid movement, oxalate gel and self-etch adhesive agent were used. BisBlock (Bisco) and Clearfil SE Bond (Kuraray) were applied to the occlusal dentin surface of extracted human teeth. Using this new device, the fluid movement was measured and compared between before and after each agent was applied. The instrument was able to measure dentinal fluid movement with a high resolution (0.196 nL) and the flow occurred with a rate of 0.84 to 15.2 nL/s before treatment. After BisBlock or Clearfil SE Bond was used, the fluid movement was decreased by 39.8 to 89.6%.