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ITALIAN JOURNAL OF MAXILLOFACIAL SURGERY
Rivista di Chirurgia Maxillo-Facciale
Official Journal of the Italian Society of Maxillofacial Surgery
Italian Journal of Maxillofacial Surgery 2011 December;22(3):169-79
Autologous bone grafts used for alveolar ridge augmentations: types, surgical techniques and complications
Arduin L. 1, Cenzi R. 2, Carinci F. 3
1 Maxillofacial Surgery, University of Ferrara, Ferrara, Italy;
2 Maxillofacial Surgery, Civil Hospital, Rovigo, Italy;
3 Maxillofacial Surgery, University of Ferrara, Ferrara, Italy
AIM: Several options are available to restore severely atrophied alveolar crests. Aim of the present study was to evaluate the complications over time of autologous bone grafts
METHODS: Fifty-four mandible and one hundred and forty two maxillae were grafted with autologous bones. Bone grafts were collected from calvaria, iliac crest and mandibular symphysis. Grafts were inserted by means 130 inlay, 79 onlay and 81 veneer surgical techniques. Complications were recorded as intra-operative, perioperative, postoperative (early and late) and then analyzed separately. Data were processed by using two statistical methods: Kaplan Meier algorithm and Cox regression algorithm.
RESULTS: Univariate analysis (Kaplan-Meier algorithm) demonstrated that collagen membranes used to cover grafts and multiple grafts facilitate late complications onset. Multivariate analysis (Cox regression) showed a statistically significant effect due only to resorbable membranes (P=0.010).
CONCLUSION: Calvaria, iliac crest and mandibles symphysial bones are reliable materials to restore alveolar ridges. Complications have low incidence and collagen membrane used to cover grafts do not prevent late complications.