不同类型钛酸酯偶联剂对氧化锆陶瓷与树脂初期粘接强度的影响

Abstract

Abstract: Objective To evaluate the effect of different types of titanate coupling agents (KR-TTS,KR-12,KR-38S) applied alone or in combination with phosphate ester monomer (MDP or PENTA)on bond strength between resin composites and dental zirconia ceramics. Methods 130 pieces of ceramic plates were sandblasted and randomly divided into 13 groups based on the surface treatment to be applied: group Kt,,K1,K3, the self-formulated primers contain only one type of titanate coupling agent; group H-M, the self-formulated primers, combining with the phosphate ester monomer (MDP or PENTA) respectively, contain the titanate coupling agent; the positive control groups including the MDP (group M), PENTA (group P) self-formulated primers and commercialization MDP-containing primer Z-Prime Plus (group Z); the ceramic plates in the negative control group (group C0) received no further surface treatment. Then producted adhesive specimens and after bath in water for 24h, shear bond strength(SBS)and modes of failure were determined. Results The shear bond strength of each type of titanate coupling agent, whether used alone or combined with phosphate ester monomer(MDP or PENTA), were lower than that of the phosphate ester monomer MDP or PENTA and Z-Prime Plus(P <0.05). Simultaneously, the shear bonding strength of partial groups applying titanate coupling agents were even lower than that of the sandblasted group. Conclusion Application of titanate coupling agent negatively affected bonding between zirconia and resin.

Key words: zirconia, titanate coupling agent, phosphate ester monomer, adhesion, surface treatment

CLC Number:

R783.1

References

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Bonding to zirconia ceramics: The effect of different types of titanate coupling agents

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