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Tissue-Engineered Polymer-Based Periosteal Bone Grafts for Maxillary Sinus Augmentation: Five-Year Clinical Results

Identifieur interne : 001C55 ( Main/Exploration ); précédent : 001C54; suivant : 001C56

Tissue-Engineered Polymer-Based Periosteal Bone Grafts for Maxillary Sinus Augmentation: Five-Year Clinical Results

Auteurs : Wolfram Trautvetter [Allemagne] ; Christian Kaps [Allemagne] ; Rainer Schmelzeisen [Allemagne] ; Sebastian Sauerbier [Allemagne] ; Michael Sittinger [Allemagne]

Source :

Journal of oral and maxillofacial surgery [ 0278-2391 ] ; 2011.

RBID : Pascal:11-0499666

Descripteurs français

Pascal (Inist)
- Chirurgie, Polymère, Sinus maxillaire, Stomatologie, Traitement, Greffe osseuse.
Wicri :
- topic : Chirurgie, Polymère.

English descriptors

KwdEn :
- Bone graft, Maxillary sinus, Polymer, Stomatology, Surgery, Treatment.

Abstract

Purpose: Augmentation of the maxillary sinus with allogenic or alloplastic materials, as well as autologous bone grafts, has inherent disadvantages. Therefore, the aim of our study was to evaluate the long-term clinical repair effect of autologous periosteal bone grafts on atrophic maxillary bone. Patients and Methods: In the present retrospective cohort study, augmentation of the edentulous atrophic posterior maxilla was performed using autologous tissue-engineered periosteal bone grafts based on bioresorbable polymer scaffolds and, in a 1-step procedure, simultaneous insertion of dental implants. The clinical evaluation of 10 patients was performed by radiologic assessment of bone formation, with a follow-up of 5 years. Bone formation was further documented by measuring the bone height and by histologic examination. Results: Excellent clinical and radiologic results were achieved as early as 4 months after transplantation of the periosteal bone grafts. The bone height remained significantly (P < .05) greater (median 14.2 mm) than the preoperative atrophic bone (median 6.9 mm) during the 5-year observation period. Histologically, the bone biopsy specimens of 2 patients obtained after 6 months showed trabecular bone with osteocytes and active osteoblasts. No signs of bone resorption, formation of connective tissue, or necrosis were seen. Conclusion: Our results suggest that the transplantation of autologous periosteal bone grafts and implantation of dental implants in a 1-step procedure is a reliable procedure that leads to bone formation in the edentulous posterior maxilla, remaining stable in the long term for a period of at least 5 years.

Affiliations:

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Le document en format XML

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<front><div type="abstract" xml:lang="en">Purpose: Augmentation of the maxillary sinus with allogenic or alloplastic materials, as well as autologous bone grafts, has inherent disadvantages. Therefore, the aim of our study was to evaluate the long-term clinical repair effect of autologous periosteal bone grafts on atrophic maxillary bone. Patients and Methods: In the present retrospective cohort study, augmentation of the edentulous atrophic posterior maxilla was performed using autologous tissue-engineered periosteal bone grafts based on bioresorbable polymer scaffolds and, in a 1-step procedure, simultaneous insertion of dental implants. The clinical evaluation of 10 patients was performed by radiologic assessment of bone formation, with a follow-up of 5 years. Bone formation was further documented by measuring the bone height and by histologic examination. Results: Excellent clinical and radiologic results were achieved as early as 4 months after transplantation of the periosteal bone grafts. The bone height remained significantly (P < .05) greater (median 14.2 mm) than the preoperative atrophic bone (median 6.9 mm) during the 5-year observation period. Histologically, the bone biopsy specimens of 2 patients obtained after 6 months showed trabecular bone with osteocytes and active osteoblasts. No signs of bone resorption, formation of connective tissue, or necrosis were seen. Conclusion: Our results suggest that the transplantation of autologous periosteal bone grafts and implantation of dental implants in a 1-step procedure is a reliable procedure that leads to bone formation in the edentulous posterior maxilla, remaining stable in the long term for a period of at least 5 years.</div>
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Tissue-Engineered Polymer-Based Periosteal Bone Grafts for Maxillary Sinus Augmentation: Five-Year Clinical Results

Tissue-Engineered Polymer-Based Periosteal Bone Grafts for Maxillary Sinus Augmentation: Five-Year Clinical Results

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Descripteurs français

English descriptors

Abstract

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