Dental implants placed in extraction sites implanted with bioactive glass: human histology and clinical outcome.

摘要: Purpose To evaluate the clinical outcome of implants placed into sites grafted with bioactive glass. Materials and methods Seventeen consecutively treated patients were referred to a private specialist surgical practice for repair dentoalveolar defects, and/or ridge maintenance at site extraction sockets, prior implantation. Bioactive glass available in 1 2 forms was utilized as an alloplastic grafting material. Bone cores trephined out time implantation processed examined tissue response under light microscope. Implant mobility, marginal bone levels, soft health all evaluated over 2- 3-year follow-up period determine treatment success. Results A total 40 Astra Tech dental placed. The overall success rate end study 88.6% that function mean 29.2 months (22 24 months). One patient 5 successful died 18 after functional loading. At cumulative 90%. Another who diagnosed cancer large bowel lost 3 implants. If this excluded from data, increases 96.8%. Mean loss measured 0.5 mm mesially 0.4 distally maximum 36 months. Human histology demonstrated connective seen exist without any inflammatory response, up 6 Increasing evidence formation direct relation material beyond frame. Discussion need augment defects necessitates use autogenous or substitute may be avoid additional morbidity donor procedure risk cross infection. has been proposed viable substitute. current draws attention long healing required achieve even small amount new incorporation graft, histologically. However, high osseointegration continued medium-term these would indicate does not prohibit osseointegration. it is likely initial integration will have derived those areas contact native bone. Conclusion Implants survive years glass, when such grafts appear only slowly conduct growth.