title: [A study of restoration of seriously damaged posterior teeth by cast metal prostheses].
abstract: A total of 38 seriously damaged posterior teeth were restored by cast metal prostheses, including onlays (with pulp chamber retainer and radicular retainer), cast dowelcore, two-piece dowel-core or cast dowel crown. As followed up for 6-48 months, 37 prostheses remained firm and sound, with perfect periphery seal, no secondary caries and pathological changes of peridontium were observed, The clinical consummate rate was 97%, The occlusal force of the restored teeth measured in 14 cases was 13.6-30.2 kg, which can satisfy the needs of masticatory function. The selection of retainers should be in accordance with the position and degree of crown damage of the posterior teeth. The key links guaranteeing smooth insertion and perfect periphery seal of cast metal prostheses were also pointed out.
authors.affiliation: School of stomatology, Beijing Medical University.
authors.forename: N Y
authors.initials: NY
authors.lastname: Li
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002858:Chromium Alloys; D003442:Crowns; D003735:Dental Casting Technique; D003793:Dental Restoration, Permanent; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged
chemical_list: D002858:Chromium Alloys