Prospective clinical split-mouth study of pressed and CAD/CAM all-ceramic partial-coverage restorations: 7-year results.
The aim of this prospective clinical split-mouth study was to investigate the longterm performance of pressed and computer-aided design/computer-assisted manufacture (CAD/CAM) all-ceramic partial-coverage restorations (PCRs). Twentyfive patients were restored with 40 lithium disilicate pressed PCRs (IPS e.max-Press, Ivoclar Vivadent) and 40 leucite-reinforced glass-ceramic CAD/CAM PCRs (ProCAD, Ivoclar Vivadent). All restorations were placed in vital first or second molars. The 7-year Kaplan-Meier survival rate was 100% for pressed PCRs and 97% for CAD/ CAM PCRs. Both systems showed significant deterioration over time in all modified United States Public Health Service criteria. Increased surface roughness and impaired color match were significantly more prevalent with pressed PCRs. Based on the 7-year data, both all-ceramic systems can be considered reliable treatment options for posterior PCRs.
Department of Prosthodontics, Albert-Ludwigs-University, Freiburg, Germany. petra.guess@uniklinik-freiburg.de
Petra C
PC
Guess
Christian F
CF
Selz
Yann-Niclas
YN
Steinhart
Susanne
S
Stampf
Joerg R
JR
Strub
D000538:Aluminum Silicates / Q000737:chemistry; D002516:Ceramics / Q000737:chemistry; D003116:Color; D017076:Computer-Aided Design; D018772:Dental Marginal Adaptation; D003776:Dental Porcelain / Q000737:chemistry*; D017267:Dental Prosthesis Design; D019232:Dental Restoration Failure; D003801:Dental Veneers; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008963:Molar / Q000473:pathology; D011446:Prospective Studies; D013499:Surface Properties; D019246:Tooth Preparation / Q000379:methods; D016896:Treatment Outcome
D000538:Aluminum Silicates; C508050:IPS e.max Press; C454801:ProCAD Ceramic; C493120:lithia disilicate; D003776:Dental Porcelain; C078519:leucite; C023506:Glass ceramics