Dentin bond strength of a new adhesive system containing calcium phosphate experimentally developed for direct pulp capping.
The purpose of this study was to evaluate the microtensile bond strength (microTBS) to human dentin of an experimental bonding agent containing calcium phosphates experimentally developed for direct pulp capping. Different concentrations of four types of calcium phosphates were added to an experimental bonding monomer, and six experimental bonding agents were thus prepared. Clearfil SE Bond/Bond was used as the control. Flat dentin surfaces of human molars were assigned to the experimental adhesive systems and the control. After Clearfil SE Bond/Primer was applied to the dentin surface, each experimental bonding agent was applied and photopolymerized, and then a resin composite paste was placed and photopolymerized. The specimens were subjected to microTBS testing. Results revealed that there were no significant differences among the microTBS values of the experimental bonding agents and the control. In other words, the calcium phosphate-containing experimental adhesives did not adversely affect the microTBS to dentin.
Shinkai
Koichi
K
Department of Operative Dentistry, School of Life Dentistry at Niigata, The Nippon Dental University, Niigata 951-8580, Japan. shinkaik@ngt.ndu.ac.jp
Taira
Yoshihisa
Y
Suzuki
Masaya
M
Kato
Chikage
C
Ebihara
Takashi
T
Wakaki
Suguru
S
Seki
Hideaki
H
Shirono
Manabu
M
Ogisu
Takahito
T
Yamauchi
Junichi
J
Suzuki
Shiro
S
Katoh
Yoshiroh
Y
D000268:Adhesiveness; D002130:Calcium Phosphates / Q000737:chemistry*; D003188:Composite Resins / Q000737:chemistry; D001840:Dental Bonding; D003785:Dental Pulp Capping; D003804:Dentin / Q000648:ultrastructure*; D017220:Dentin-Bonding Agents / Q000737:chemistry*; D017886:Durapatite / Q000737:chemistry; D006801:Humans; D008422:Materials Testing; D008689:Methacrylates / Q000737:chemistry; D008855:Microscopy, Electron, Scanning; D011109:Polymethacrylic Acids / Q000737:chemistry; D019279:Resin Cements / Q000737:chemistry; D013314:Stress, Mechanical; D013499:Surface Properties; D013718:Tensile Strength
D002130:Calcium Phosphates; C112828:Clearfil AP-X; C501417:Clearfil Flow FX; C438313:Clearfil SE Bond; D003188:Composite Resins; D017220:Dentin-Bonding Agents; D008689:Methacrylates; D011109:Polymethacrylic Acids; D019279:Resin Cements; C541508:clearfil majesty; C022045:octacalcium phosphate; C021767:whitlockite; D017886:Durapatite; C020243:calcium phosphate; C494366:calcium phosphate, dibasic, dihydrate