구강회복응용과학지 (Journal of Dental Rehabilitation and Applied Science)
- 제18권3호
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- Pages.205-215
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- 2002
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- 2384-4353(pISSN)
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- 2384-4272(eISSN)
Ceromer crown의 교합면 두께에 따른 압축 파절 강도의 비교
The compressive fracture strength of ceromer crown by the difference of occlusal thickness
- Kim, Jee-Yeon (Department of Prosthodontics, College of Dentistry Chonnam National University) ;
- Park, Ha-Ok (Department of Prosthodontics, College of Dentistry Chonnam National University) ;
- Yang, Hong-So (Department of Prosthodontics, College of Dentistry Chonnam National University)
- 발행 : 2002.09.30
초록
This study investigated the compressive fracture strength of Targis ceromer crown by the difference of occlusal thickness on a maxillary first premolar. Control group was a castable IPS-Empress all-ceramic crown with occlusal thickness of 1.5 mm constructed by layered technique. Experimental groups were Targis crowns having different occlusal thicknesses of 1.0 mm, 1.5 mm, 2.0 mm, 2.5 mm, respectively. The classification of Targis group is T10, T15, T20, T25 and T15N (for no-thermocycling and occlusal thickness of 1.5mm). Ten samples were tested per each group. Except occlusal thickness, all dimension of metal die is same with axial inclination of