Prosthetic treatment planning on the basis of scientific evidence

Summary  The objective of this report is to summarize the results on survival and complication rates of different designs of fixed dental prostheses (FDP) published in a series of systematic reviews. Moreover, the various parameters for survival and risk assessment are to be used in attempt to perform treatment planning on the basis of scientific evidence. Three electronic searches complemented by manual searching were conducted to identify prospective and retrospective cohort studies on FDP and implant-supported single crowns (SC) with a mean follow-up time of at least 5 years. Patients had to have been examined clinically at the follow-up visit. Failure and complication rates were analyzed using random-effects Poisson regression models to obtain summary estimates of 5- and 10-year survival proportions. Meta-analysis of the studies included indicated an estimated 5-year survival of conventional tooth-supported FDP of 93·8%, cantilever FDP of 91·4%, solely implant-supported FDP of 95·2%, combined tooth-implant-supported FDP of 95·5% and implant-supported SC of 94·5% as well as resin-bonded bridges 87·7%. Moreover, after 10 years of function the estimated survival decreased to 89·2% for conventional FDP, to 80·3% for cantilever FDP, to 86·7% for implant-supported FDP, to 77·8% for combined tooth-implant-supported FDP, to 89·4% for implant-supported SC and to 65% for resin-bonded bridges. When planning prosthetic rehabilitations, conventional end-abutment tooth-supported FDP, solely implant-supported FDP or implant-supported SC should be the first treatment option. Only as a second option, because of reasons such as financial aspects patient-centered preferences or anatomical structures cantilever tooth-supported FDP, combined tooth-implant-supported FDP or resin-bonded bridges should be chosen.     

激光焊点对金瓷界面结合的影响

目的:通过激光焊点对金瓷界面结合的影响分析与临床评价,探讨激光点焊技术在固定修复中的应用价值。方法:用Herapuls激光点焊机对200例存在缺陷的冠桥行点焊修补,再行烤瓷修复。结果:200例不同材料、不同缺陷原因的问题冠桥,经分类点焊修补调整后,均取得满意的修复效果。经1a随访,无焊接点处崩瓷、断裂。结论:激光点焊对金瓷界面修复无直接影响,此技术可以解决冠桥制作中的常见问题。     

Disulfide-Depleted Selenoconopeptides: Simplified Oxidative Folding of Cysteine-Rich Peptides

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Intermembrane bridges within membrane organelles revealed by quick-freeze deep-etch electron microscopy

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Chemical synthesis and receptor binding of catfish somatostatin: a disulfide‐bridged β‐d‐Galp‐(1→3)‐α‐d‐GalpNAc O‐glycopeptide*

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守土尽责,致敬新冠肺炎疫情防控一线的放射工作者

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A Combined Experimental-Numerical Framework for Assessing the Load-Bearing Capacity of Existing PC Bridge Decks Accounting for Corrosion of Prestressing Strands

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Dental visits, teeth remaining, and prosthetic appliances in a Norwegian urban population

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