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首页> 外文期刊>The Journal of Prosthetic Dentistry >Effect of different finish line preparations on the marginal and internal adaptation of cobalt-chromium metal alloy copings fabricated by using CAD-CAM technology: A systematic review and meta-analysis
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Effect of different finish line preparations on the marginal and internal adaptation of cobalt-chromium metal alloy copings fabricated by using CAD-CAM technology: A systematic review and meta-analysis

机译：Effect of different finish line preparations on the marginal and internal adaptation of cobalt-chromium metal alloy copings fabricated by using CAD-CAM technology: A systematic review and meta-analysis

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摘要

? 2021 Editorial Council for the Journal of Prosthetic DentistryStatement of problem: The marginal and internal adaptation of a fixed dental prosthesis depends on a variety of factors, finish line designs being one of them. A clear consensus as to which finish line design can provide a better marginal and internal adaptation with respect to cobalt-chromium metal alloy copings fabricated by using computer-aided design and computer-aided manufacturing (CAD-CAM) technology is lacking. Purpose: The purpose of this systematic review and meta-analysis was to evaluate the effect of different finish line preparations on the marginal and internal adaptation of cobalt-chromium metal alloy copings fabricated by using CAD-CAM technology. Material and methods: Electronic (PubMed, Cochrane, EBSCOhost, and Google Scholar) and manual searches were conducted for articles published from January 2010 to December 2020 to identify relevant studies evaluating the effect of different finish line preparations (chamfer, deep chamfer, shoulder, rounded shoulder) on the marginal and internal adaptation of cobalt-chromium metal alloy copings fabricated by using CAD-CAM technology. Results: A total of 573 articles were obtained via electronic search, and 10 articles were obtained through manual search, of which 24 in vitro studies were selected after title, abstract, and full-text screening and were included for both qualitative and quantitative analyses. The marginal adaptation was evaluated under the parameters of marginal gap, absolute marginal discrepancy, and vertical marginal discrepancy, whereas internal adaptation was evaluated under the parameters of internal gap, cervical discrepancy, axial discrepancy, and occlusal discrepancy. The methods of CAD-CAM fabrication (direct metal laser sintering, hard milling, and soft milling) were considered under the subgroup analysis. Conclusions: An overall better marginal and internal adaptation was observed with shoulder and rounded shoulder finish line designs when CAD-CAM methods were used for coping fabrication. Marginal and internal adaptation in chamfer and deep chamfer finish line designs showed better results with soft milling and direct metal laser sintering methods, whereas shoulder finish line showed better results with hard milling.

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  • 来源
    《The Journal of Prosthetic Dentistry》 |2022年第5期|716-728.e6|共13页
  • 作者

    Shah N.; Badwaik P.; Sheth V.H.Bhatnagar V.Bhanushali N.Patil P.;

  • 作者单位

    Professor and Head of Department Department of Prosthodontics and Crown & Bridge T.P.C.T.’s Terna;

    Professor Department of Prosthodontics and Crown & Bridge T.P.C.T.’s Terna Dental College;

    Post-Graduate student Department of Prosthodontics and Crown & Bridge T.P.C.T.’s Terna DentalReader Department of Prosthodontics and Crown & Bridge T.P.C.T.’s Terna Dental CollegeReader Department of Public Health Dentistry T.P.C.T.’s Terna Dental CollegeLecturer Department of Prosthodontics and Crown & Bridge T.P.C.T.’s Terna Dental College;

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  • 正文语种 英语
  • 中图分类 口腔科学;
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