title: A preliminary study on the short-term efficacy of chairside computer-aided design/computer-assisted manufacturing- generated posterior lithium disilicate crowns.
abstract: The purpose of this preliminary study was to evaluate the clinical performance of chairside-generated crowns over a preliminary time period of 24 months. Forty-one posterior crowns made of a machinable lithium disilicate ceramic for full-contour crowns were inserted in 34 patients using a chairside computer-aided design/computer-assisted manufacturing technique. The crowns were evaluated at baseline and after 6, 12, and 24 months according to modified United States Public Health Service criteria. After 2 years, all reexamined crowns (n = 39) were in situ; one abutment exhibited secondary caries and two abutments received root canal treatment. Within the limited observation period, the crowns revealed clinically satisfying results.
authors.affiliation: Department of Prosthodontics and Dental Materials, Medical Faculty, RWTH Aachen University, Germany. sreich@ukaachen.de
authors.forename: Sven
authors.initials: S
authors.lastname: Reich
authors.forename: Sören
authors.initials: S
authors.lastname: Fischer
authors.forename: Bernhard
authors.initials: B
authors.lastname: Sobotta
authors.forename: Horst-Uwe
authors.initials: HU
authors.lastname: Klapper
authors.forename: Stephan
authors.initials: S
authors.lastname: Gozdowski
mesh_terms: D000328:Adult; D000368:Aged; D001641:Bicuspid; D002484:Cementation / Q000379:methods; D003188:Composite Resins / Q000737:chemistry; D017076:Computer-Aided Design; D003442:Crowns; D000044:Dental Abutments; D003722:Dental Alloys / Q000737:chemistry; D003731:Dental Caries / Q000209:etiology; D003764:Dental Materials / Q000737:chemistry; D003776:Dental Porcelain / Q000737:chemistry*; D017267:Dental Prosthesis Design; D019232:Dental Restoration Failure; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D008963:Molar; D019095:Point-of-Care Systems; D011176:Post and Core Technique; D011446:Prospective Studies; D019279:Resin Cements / Q000737:chemistry; D012390:Root Canal Therapy; D016896:Treatment Outcome
chemical_list: D003188:Composite Resins; D003722:Dental Alloys; D003764:Dental Materials; C520133:IPS e.max CAD LT; D019279:Resin Cements; C493120:lithia disilicate; C502351:multilink adhesive system; D003776:Dental Porcelain