ISSN:1056-6163    

出版商:OVID    

年代:1997

数据来源: OVID

摘要:

A study involving the immediate loading of Brånemark implants in the edentulous mandibles of 10 patients is reported. The design involved the immediate loading of four widely distributed implants with a transitional fixed implant-supported prosthesis at first-stage surgery, avoiding the need for a removable prosthesis. A sufficient number of additional implants are allowed to heal in the conventional manner to provide sufficient support for a definitive fixed prosthesis even if all of the immediately loaded implants fail. Preliminary results have been favorable, with all patients functioning with a fixed implant prosthesis from the day of first-stage surgery. (Implant Dent 1997;6:83–88)

ISSN:1056-6163    

出版商:OVID    

年代:1997

数据来源: OVID

摘要:

The height of the available bone between the alveolar ridge and the sinus is often insufficient for placing endosseous implants in the posterior maxilla. Subantral augmentation after sinus elevation can be performed using bone-grafting materials such as autogenous bone, allografts, and alloplasts. The properties and performance of a recently developed resorbable bioactive glass (BioGran) were investigated with regard to bioactivity and bone-forming capability. The bioactive glass was grafted into the sinus cavities of 25 patients and biopsies were taken after 7 months. The samples were examined by conventional histologic techniques, elemental composition and distribution assayed by an electron probe microanalyzer, and comparative biomechanical data for BioGran and bone tissue gathered. Histologic and biomechanical examination indicated bone formation in all cases, with biomechanical properties of the regenerated bone close to those of bone tissue. The results of this study suggest that BioGran exhibits osteoconductive properties and efficacy as an alloplastic bone-grafting material. (Implant Dent 1997;6:93–101)

ISSN:1056-6163    

出版商:OVID    

年代:1997

数据来源: OVID

摘要:

A 55-year-old woman developed chronic infections of the maxillary sinuses with osteomyelitis resulting in extensive bone destruction and atrophy from a failed subperiosteal implant. After surgical removal of the subperiosteal implant, extensive debridement of the maxilla, and long-term antibiotic therapy, maxillary reconstruction was initiated. A Le Fort I osteotomy and downgraft was performed, and a posterior iliac bone graft was harvested and grafted to reconstruct the severely atrophic maxilla. In a later surgical procedure, maxillary and mandibular implants were placed. Implant-retained overdentures were fabricated to restore function and esthetics. (Implant Dent 1997;6:105–108)

ISSN:1056-6163    

出版商:OVID    

年代:1997

数据来源: OVID

摘要:

A two-site clinical study of hydroxyapatite-coated cylindrical titanium alloy implants was undertaken to evaluate their efficacy. Observations were recorded before surgery, at first-stage surgery, at second-stage surgery, at loading, and at quarterly postrestoration prophylactic examinations and annual comprehensive patient visits. Implant failure criteria included mobility, peri-implant radiolucency, fracture, exfoliation, removal for any reason, and patient reported pain on palpation. Soft tissue indices were monitored as part of the study. Postrestoration implant performance was analyzed using life table methodology. From the 316 implants restored in 154 patients, 11 implants in 8 patients failed before prosthetic attachment, for a surgical success rate of 96.4 percent. Four implants failed during an observation period extending up to 85 months after completion of prosthetic treatment. The Cutler-Ederer life table success rate after 6 years was 97.8 percent. No significant adverse events were reported during the observation period. Results of this investigation suggest that hydroxyapatite-coated cylindrical titanium alloy implants are an effective treatment modality. (Implant Dent 1997; 6:111–115)

ISSN:1056-6163    

出版商:OVID    

年代:1997

数据来源: OVID

摘要:

Access and visualization in the implant-abutment area are often compromised. Tissue impingement and lack of abutment position verification may result in inaccurate fit. (Implant Dent 1997;6:117–118)

ISSN:1056-6163    

出版商:OVID    

年代:1997

数据来源: OVID

摘要:

Organized by the Thai Dental Implant Society and Chulalongkorn UniversityCo-sponsored by the Dental Association of Thailand, Chulalongkorn University Faculty of Dentistry, Mahidol University Faculty of Dentistry, Chiangmai University Faculty of Dentistry, Prince of Songkla University Faculty of Dentistry, Khonkaen University Faculty of Dentistry, Srinakarinwirot University Faculty of Dentistry, Thammasat University Faculty of Dentistry, Dental Institute, Chulalongkorn University Dental Alumni Association, International Congress of Oral Implantologists, and the Asian Oral Implant Institute

ISSN:1056-6163    

出版商:OVID    

年代:1997

数据来源: OVID

ISSN:1056-6163    

出版商:OVID    

年代:1997

数据来源: OVID

ISSN:1056-6163    

出版商:OVID    

年代:1997

数据来源: OVID

ISSN:1056-6163    

出版商:OVID    

年代:1997

数据来源: OVID