Retrospective clinical review of dental implants placed in a university training program.
Many dental schools offer implant clinical training at the pre- and postdoctoral levels, but little has been published on the clinical outcomes of implants placed in those programs. A post-entry chart review was conducted of all Branemark and Taper-Lock implants placed in a university clinic by faculty-student teams. Case information was gathered on data reporting forms and entered into a computer spreadsheet program. Survival rates were calculated as percentages. Cumulative implant survival was 96% for all 303 implants placed. Eight of the 12 implants that failed were placed by 2 operators, only 1 of whom was in the early stages of implant training. Branemark implant survival was 94.9% (n = 198) at 36 months; failures occurred between stage 2 and 3 months (n = 8) in mandibles and after 12 months (n = 2) in maxillae. Taper-Lock implant survival was 98.1% (n = 105) at 24 months; no mandibular failures occurred, but maxillary failures occurred before stage 2 (n = 1) and after 12 months of loading (n = 1). Taper-Lock implants exhibited a slightly higher (3.2%) cumulative survival rate at 24 months compared to Branemark implants. Differences in the numbers of implants placed (105 vs 198) and follow-up times (24 months vs 36 months) may have skewed the comparative results of Taper-Lock and Branemark implants, respectively, in this study. Implant survival for both systems was similar at 24 months of follow-up, and clinician experience did not appear to be an influencing variable on implant survival.
Oral Implant Center, Department of Prosthodontics, Hebrew University-Hadassah School of Dental Medicine, Jerusalem, Israel.
David
D
Kohavi
Gilad
G
Azran
Lior
L
Shapira
Nardy
N
Casap
D000293:Adolescent; D000328:Adult; D000368:Aged; D000044:Dental Abutments; D003758:Dental Implantation, Endosseous; D015921:Dental Implants; D019094:Dental Prosthesis, Implant-Supported; D019232:Dental Restoration Failure; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008334:Mandible / Q000601:surgery; D008437:Maxilla / Q000601:surgery; D008875:Middle Aged; D016348:Osseointegration; D012189:Retrospective Studies; D012575:Schools, Dental; D013515:Surgery, Oral / Q000193:education; D016019:Survival Analysis; D013997:Time Factors; D016474:Weight-Bearing
D015921:Dental Implants