title: Titanium- and zirconia-based implant-supported fixed dental prostheses. A randomized, prospective clinical pilot study.
abstract: The aim of this study was to compare porcelain-veneered implant-supported FDPs based on zirconium dioxide and titanium respectively. Sixteen patients received 18 implant-supported partial fixed dental prostheses (FDPs); 8 titanium-based and 10 zirconia-based. The FDPs were randomized between the two material groups. Follow-up of the patients was performed at 3 months and thereafter once a year. An assessment protocol based on the California Dental Association (CDA) quality assessment system was used. Results: All patients were seen at follow-up. The mean time of clinical service at follow-up was 15,2 months (range 12-24 months). All restorations were in place and all patients were satisfied with the treatment. No technical complications were noted in either group. Minor biological complications, in the form of plaque and/or mucositis, not affecting the survival of the restorations were noted for six of the titanium-based restorations and two of the zirconia-based restorations. The difference between the two material groups was not statistically significant. The outcomes of both materials were comparable. Short term data from this study suggests that porcelain-veneered implant-supported partial FDPs based on zirconia and titanium are satisfactory and equal treatment options. This conclusion is however preliminary as it is based on a small number of patients and short-term follow-up. Long-term follow-up of larger groups of patients is needed before more definite conclusions can be made.
authors.affiliation: Prosthodontic Specialist Centre, Public Dental Health Service, 60115 Norrköping, Sweden.
authors.forename: Marcus
authors.initials: M
authors.lastname: Borg
authors.forename: Per
authors.initials: P
authors.lastname: Vult von Steyern
authors.forename: Christel
authors.initials: C
authors.lastname: Larsson
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015921:Dental Implants; D003764:Dental Materials / Q000737:chemistry / Q000494:pharmacology*; D003776:Dental Porcelain; D019094:Dental Prosthesis, Implant-Supported / Q000295:instrumentation; D003801:Dental Veneers; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017060:Patient Satisfaction; D010865:Pilot Projects; D014025:Titanium / Q000494:pharmacology*; D016896:Treatment Outcome; D055815:Young Adult; D015040:Zirconium / Q000494:pharmacology*
chemical_list: D015921:Dental Implants; D003764:Dental Materials; D003776:Dental Porcelain; D015040:Zirconium; D014025:Titanium; C028541:zirconium oxide