排序方式: 共有77条查询结果,搜索用时 234 毫秒
61.
62.
P. Schweizer A. Flach R. Bähr und H. -J. Kolb 《Langenbeck's archives of surgery / Deutsche Gesellschaft fur Chirurgie》1976,342(1):613
Zusammenfassung Beim kompletten Gallengangsverschluß wird Galle in der hepatischen Lymphe an der Leberpforte aus der Leber abgeleitet. Die Methode der lympho-digestiven Galleableitung nützt dieses Prinzip. Leberpforte und Lig. hepatoduodenale werden deserosiert und mit einem deserosierten Jejunumsegment verbunden. Danach anastomieren die Lymphwege beider Strukturen. In der Darmwand kann Galle ins Darmlumen transportiert werden. Operationsmethode und klinische Ergebnisse werden demonstriert. 相似文献
63.
64.
65.
66.
67.
68.
69.
70.
Stéfani Becker Rodrigues Patrícia Franken Roger Keller Celeste Vicente Castelo Branco Leitune Fabrício Mezzomo Collares 《Journal of prosthodontic research》2019,63(4):389-395
PurposeThis systematic review and meta-analysis aimed to evaluate the difference in longevity of tooth-supported ceramic prostheses designed by conventional and computer-aided design/computer-aided manufacturing (CAD/CAM) techniques.Study selectionTwo reviewers searched the Web of Science, PubMed, SCOPUS and LILACS databases between 1966 and October 2017. Clinical studies that compared the survival rate of CAD/CAM against conventional restorations were included.ResultsEleven randomized controlled trials and three prospective studies were included, n = 14. Three types of tooth-supported restorations were searched in the included studies: single crown, multiple-unit and partial ceramic crown. The follow-up of patients in the studies ranged from 24 to 84 months. A total of 1209 restorations had been placed in 957 patients in the included trials, and failures were analyzed by type and material restoration. From a total of 72 restoration failures, the CAD/CAM system resulted in a 1.84 (IC95%: 1.28–2.63) higher risk than conventional manufacturing of ceramic restoration. Nevertheless, when drop-outs were included as a failure risk, the CAD/CAM system resulted in a risk of 1.32 (IC95%: 1.10–1.58). Multilevel analysis of tooth-supported ceramic restorations, considering drop-outs as successes, resulted in rates of 1.48 and 2.62 failures per 100 restoration-years for the controls and CAD/CAM groups, respectively. Considering drop-outs as failures, we found rates of 4.23 and 5.88 failures per 100 restoration-years for the controls and CAD/CAM groups, respectively.ConclusionsThe meta-analysis results suggest that the longevity of a tooth-supported ceramic prostheses made by CAD/CAM manufacturing is lower than that of crowns mad by the conventional technique. 相似文献