지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록· 키워드
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The purpose of this study in vitro investigation was to compare the marginal and internal fit of Ni-Cr alloy metal ceramic crown before and afterporcelain veneering. Furthermore, this study evaluated whether the influence of the porcelain firing on the precision of fit of dental prostheses. Themaxillary right incisor was selected as an abutment for experiments. Ten working models were prepared. Ni-Cr alloy cores appropriate for eachabutment were prepared by lost wax technique. The marginal area and four internal areas of the crowns were measured at two stages: beforeveneering process and after upper porcelain firing. Silicone replica techniques were used. The data were statistically analyzed with the paired t-test(α=0.05). Mean±SD marginal and internal gap were 67.1±23.3 μm for the nickle chrome alloy core group and 74.4±21.9 μm for the metalceramic crown group. There were statistically significant differences in all investigated areas (p＜0.05). Within the limitations of this study, none ofthe Ni-Cr alloy metal crown values measured after porcelain firing process exceeded 120 μm, which is the clinically acceptable threshold.
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등록된 정보가 없습니다.
참고문헌 (23)
참고문헌 신청
Abbate MF / 1989 / Comparison of the marginal fit of various ceramic crown systems / J Prosthet Dent 61 : 527 ~ 531
Anusavice KJ / 1987 / Effect of incompatibility stress on the fit of metal-ceramic crowns / J Dent Res 66 : 1341 ~ 1345
Assif D / 1987 / The flow of zinc phosphate cement under a full coverage restoration and its effect on marginal adaptation according to the location of cement application /
Azer SS / 2006 / Effect of esthetic core shades on the final color of IPS Empress all-ceramic crown / J Prosthet Dent 96 : 397 ~ 401
Balkaya MC / 2005 / Influence of firing cycles on the margin distortion of 3 all-ceramic crown systems / J Prosthet Dent 93 : 346 ~ 355
Anusavice KJ / 1987 / Effect of incompatibility stress on the fit of metal-ceramic crowns / J Dent Res 66 : 1341 ~ 1345
Assif D / 1987 / The flow of zinc phosphate cement under a full coverage restoration and its effect on marginal adaptation according to the location of cement application /
Azer SS / 2006 / Effect of esthetic core shades on the final color of IPS Empress all-ceramic crown / J Prosthet Dent 96 : 397 ~ 401
Balkaya MC / 2005 / Influence of firing cycles on the margin distortion of 3 all-ceramic crown systems / J Prosthet Dent 93 : 346 ~ 355
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