Durability of adhesion between 4-META/MMA-TBB resin and cementum.
4-META/MMA-TBB resin has shown good biocompatibility and remarkable adhesion to dentin. It seems to be suitable for use in periodontal tissues for retrograde root sealing and treatment of vertically fractured roots. For an adhesive resin to be useful clinically, it must bond not only to the dentin but also to the cementum. The purpose of this study was to evaluate the long-term adhesion durability of 4-META/MMA-TBB resin to cementum kept in water at 37 degrees C. Bovine root cementum and dentin surfaces were treated with 10-3 solution before 4-META/MMA-TBB resin was applied on treated surfaces. The micro-tensile bond strength (microTBS) decreased during the first two months; dye leakage value increased during the first four months and stabilized thereafter. No significant differences in adhesion durability were recognized between the dentin and cementum.
Tanaka
Yuko
Y
Department of Oral Health Science, Hokkaido University Graduate School of Dental Medicine, Sapporo, Japan. yuuko@den.hokudai.ac.jp
Sugaya
Tsutomu
T
Kawanami
Masamitsu
M
D000818:Animals; D001896:Boron Compounds; D002417:Cattle; D001840:Dental Bonding; D003739:Dental Cementum; D003763:Dental Leakage / Q000517:prevention & control; D003799:Dental Stress Analysis; D003804:Dentin; D017220:Dentin-Bonding Agents; D008422:Materials Testing; D008689:Methacrylates; D008768:Methylmethacrylates; D019279:Resin Cements; D013718:Tensile Strength
C476988:4-methacryloxyethyltrimellitic acid-methylmethacrylate-tributylborane; D001896:Boron Compounds; D017220:Dentin-Bonding Agents; D008689:Methacrylates; D008768:Methylmethacrylates; D019279:Resin Cements; C049495:Super-bond