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SHEAR BOND STRENGTHS BETWEEN ABRASION-RESISTANT DENTURE TEETH AND COMPOSITE RESINS 의치용 레진치와 수복용 복합레진 간의 결합강도에 관한 연구
Mee-Lee Kim, Chang-Mo Jeong, Young-Chan Jeon, Jang-Seop Lim
김미리, 정창모, 전영찬, 임장섭

This study investigated the shear bond strengths between abrasion-resistant denture teeth and
composite resins according to surface treatments.
Denture teeth for this study were Trubyte IPN teeth(Dentsply Inc., USA) with interpenetrating
polymer network and Endura Posterio(Shofu Inc., Japan) of composite resin teeth, and restora-
tive composite resins were Clearfil FII (Kuraray, Japan) of the self-cured composite resin and Z100(3M
Dental Product, USA) of the light-cured composite resin. Five different surface treatments were
evaluated: (1) 50μ m Al2O3 sandblasting; (2) #100 carbide paper; (3) chloroform; (4) retentive
holes; and (5) no treatment.
After surface treatments, denture teeth were examined by scanning electron microscopy(SEM),
and the maximum shear bond strengths between abrasion-resistant denture teeth and composite
resins were measured using Instron.
The results were as follows;
1. IPN teeth treated with sandblasting had the highest shear bond strength, and Endura treat-
ed with sandblasting and carbide paper had significantly greater shear bond strength than
with any other surface treatment.
2. Regardless of composite resins, the shear bond strength on Endura was greater than on IPN
teeth.
3. Regardless of denture teeth, the shear bond strength of Clearfil FII was greater than of Z100.
4. In appearance of SEM, IPN teeth treated with sandblasting showed generalized roughness
on the all of surface, however, carbide paper treatment resulted in partly rough. Endura treat-
ed with sandblasting and carbide paper showed similar surface characteristics. Wetting den-
ture teeth surface with chloroform removed the debris and created a particle-free and smooth
surface.

* Keywords: Abrasion-resistant teeth, Composite resin, Denture teeth, Surface treatment

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