Journal article
Clinical Success of Dental Implants Placed in Posterior Mandible Augmented With Interpositional Block Graft: 3-Year Results From a Prospective Cohort Clinical Study.
- Marconcini S Researcher, Department of Surgical, Medical, Molecular and Critical Area Pathology, University of Pisa, Pisa, Italy. Electronic address: simosurg@gmail.com.
- Covani U Director, Tuscan Dental Institute, Versilia General Hospital, Lido di Camaiore; Full Professor, Department of Surgical, Medical, Molecular and Critical Area Pathology, University of Pisa, Pisa, Italy.
- Giammarinaro E Fellow Researcher, Tuscan Dental Institute, Versilia General Hospital, Lido di Camaiore, Italy.
- Velasco-Ortega E Full Professor, Universidad de Sevilla, Seville, Spain.
- De Santis D Researcher, Department of Surgery and Translational Medicine, University of Florence, Florence, Italy.
- Alfonsi F Professor, Department of Surgical Sciences, Dental and Maxillofacial Department, University of Verona, Verona, Italy.
- Barone A Chairman and Professor, Unit of Oral Surgery and Implantology, Department of Oral and Maxillofacial Surgery, Geneva University Hospital, University of Geneva, Geneva, Switzerland.
- 2019-02-05
Published in:
- Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons. - 2019
Alveolar Ridge Augmentation
Animals
Bone Substitutes
Dental Implantation, Endosseous
Dental Implants
Dental Prosthesis Design
Dental Prosthesis, Implant-Supported
Dental Restoration Failure
Horses
Humans
Mandible
Prospective Studies
Treatment Outcome
English
PURPOSE
The purpose of the present cohort study was to investigate the 3-year efficacy and clinical performance of implant-supported rehabilitations in posterior mandibles augmented with the sandwich osteotomy technique.
MATERIALS AND METHODS
Twenty-three partially edentulous patients who developed atrophy of the posterior mandible (residual ridge height, 3 to 7 mm) were treated (32 surgical sites) with vertical bone augmentation using interpositional equine cancellous bone blocks and porcine corticocancellous bone particulate. All implants were placed 4 months after augmentation and were loaded with fixed dental prostheses. One side per patient was selected and followed for 3 years, and the patient was the unit of analysis. Linear radiographic vertical bone gain and peri-implant marginal bone loss were assessed; secondary outcomes-complication rates after surgery, prosthesis and implant failure rates, width of keratinized mucosa, and patient satisfaction-were evaluated.
RESULTS
All patients reported postoperative paresthesia that resolved over a period of 2 months after the augmentation procedure. The mean vertical bone gain was 5.6 mm after 4 months. Ninety-one dental implants were positioned into the augmented areas. The global 3-year survival rate was 95.5%. The mean peri-implant marginal bone loss around implants was 1.06 ± 0.37 mm 3 years after loading, whereas the width of keratinized mucosa had an overall increase of 0.39 ± 0.36 mm.
CONCLUSION
The results of the present 3-year study suggested high success rates for implants placed in areas augmented with the osteotomy sandwich technique. This surgical approach could be helpful in the presence of a low residual vertical height in the posterior mandible before implant placement.
The purpose of the present cohort study was to investigate the 3-year efficacy and clinical performance of implant-supported rehabilitations in posterior mandibles augmented with the sandwich osteotomy technique.
MATERIALS AND METHODS
Twenty-three partially edentulous patients who developed atrophy of the posterior mandible (residual ridge height, 3 to 7 mm) were treated (32 surgical sites) with vertical bone augmentation using interpositional equine cancellous bone blocks and porcine corticocancellous bone particulate. All implants were placed 4 months after augmentation and were loaded with fixed dental prostheses. One side per patient was selected and followed for 3 years, and the patient was the unit of analysis. Linear radiographic vertical bone gain and peri-implant marginal bone loss were assessed; secondary outcomes-complication rates after surgery, prosthesis and implant failure rates, width of keratinized mucosa, and patient satisfaction-were evaluated.
RESULTS
All patients reported postoperative paresthesia that resolved over a period of 2 months after the augmentation procedure. The mean vertical bone gain was 5.6 mm after 4 months. Ninety-one dental implants were positioned into the augmented areas. The global 3-year survival rate was 95.5%. The mean peri-implant marginal bone loss around implants was 1.06 ± 0.37 mm 3 years after loading, whereas the width of keratinized mucosa had an overall increase of 0.39 ± 0.36 mm.
CONCLUSION
The results of the present 3-year study suggested high success rates for implants placed in areas augmented with the osteotomy sandwich technique. This surgical approach could be helpful in the presence of a low residual vertical height in the posterior mandible before implant placement.
- Language
-
- English
- Open access status
- closed
- Identifiers
-
- DOI 10.1016/j.joms.2018.09.031
- PMID 30712534
- Persistent URL
- https://sonar.ch/global/documents/46792
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