Using 45S5 bioglass cones as endosseous ridge maintenance implants to prevent alveolar ridge resorption: a 5-year evaluation.
Bioglass cones acting as space fillers after removal of tooth roots delay the resorption of alveolar ridges. In 1987, 242 implants in 29 patients with a mean postimplantation interval of 19.9 months were reported by the authors. Bioglass cones had been fitted snugly at least 2 mm below the alveolar crest, and dentures were placed no sooner than 6 weeks following tooth removal; 2.9% had been lost and 3.7% developed dehiscences. The present report on 168 implants in 20 recalled patients (mean postimplantation interval of 63.2 months) revealed a loss of 14.3% of the implants and 7.7% of the implants requiring recontouring. Literature indicates highest survival rates for implants in the anterior mandible; however, the present data demonstrate a statistically significant retention rate in the anterior maxilla. With this high rate of Bioglass cone retention (85.7%) after 5 years, their placement into fresh sockets to maintain the alveolar ridge is recommended.
Stanley
H R
HR
Department of Oral Diagnostic Sciences, University of Florida, College of Dentistry, Gainesville 32610, USA.
Hall
M B
MB
Clark
A E
AE
King
C J
CJ
Hench
L L
LL
Berte
J J
JJ
D000328:Adult; D000368:Aged; D016301:Alveolar Bone Loss / Q000209:etiology / Q000517:prevention & control*; D002516:Ceramics; D003824:Denture, Complete; D003832:Denture, Partial, Removable; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D019736:Prostheses and Implants; D016019:Survival Analysis; D014081:Tooth Extraction / Q000009:adverse effects / Q000379:methods*; D016896:Treatment Outcome
C022107:Bioglass