The effect of three kind of desensitizer in closing of dental tubules
WANG Yan-li
LI Ding-xin
LIU Ai-bin
Abstract：AIM:To observe the sealing effect and durability of the 3M P90 adhesive systems on dentin tu-bule. METHODS:87 fresh isolated molars were selected to set up detin sensitive models and radomly divided into 3 experimental groups(n=24) and 1 control group(n=15). The samples in the experimental groups were trated with 3M P90 adhesive system, Green OrTM and Gluma desensitizer respectively by inunction on the surface of the teeth, those in the control group were treated with equal volume of distilled water. The infiltration depth of desensitizer was examined by SEM. The closure of dentin tubules was observed by SEM before and after thermal cycling treatment and tooth brushing experiment. And hole blocking rate of dentin blocks was measured. RESULTS: The penetration depth (μm)of 3M P90, Green OrTM and Gluma desensitizer was 60~100, 20~30 and 60~100 respectively; the blocking rate(%)was 100, 87. 88 and 77. 53 respectively (P<0. 05);after thermal cycling and tooth brushing experiment the blocking rate(%)was 100,55. 56 and 43. 77(P<0. 05)respectively. CONCLUSION:3MP 90 adhesive system is more effective than Green OrTM and Gluma desensitizer in sealing dentinal tubule.
Keywords：3M P90 system adhesiveGreen OrTMGluma desensitizerdentinhypersensitivity
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 487-491 )