[Effect of the pH value of acid-salt pretreating solution system on dentin-bonding strength].
OBJECTIVE
In order to investigate the mechanism of dentin bond promoted by acid-salt pretreating solution system (APSS).


METHODS
The tensile bonding strength (TBS) of 4-META/MMA-TBB resin to the dentin, which was treated by acid and retreated by APSS with different pH value, was tested.


RESULTS
The TBS of dentin rose gradually from 10.41 MPa to 15.73 MPa with the decreasing of the pH value of APSS. The metallic salt solution containing acid or not, apparently affected the TBS of dentin.


CONCLUSIONS
This study showed that the form of metallic ion in APSS correlated with the TBS of dentin.
Xu
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P
Oral Department, Haikou People's Hospital, Haikou 570208.
Wang
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T
Xu
H
H
D000180:Acrylic Resins / Q000494:pharmacology*; D000268:Adhesiveness; D003804:Dentin / Q000737:chemistry*; D017220:Dentin-Bonding Agents / Q000494:pharmacology*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D013718:Tensile Strength
D000180:Acrylic Resins; D017220:Dentin-Bonding Agents; C031172:4-META resin