Le Fort I osteotomy and calvarial bone grafting for dental implants

Application of Cranial Bone Grafts for Reconstruction of Maxillofacial Deformities

“…CBGs have been utilized in reconstruction of the mandible (7), maxilla (8,9), orbital fl oor (10,11), orbital roof (12), malar region (13), and as a strut for nasal reconstruction (14). In craniofacial surgery, the CBG can be used to reconstruct advancement gaps resulting from Lefort I, II, and III procedures.…”

Le Fort I Osteotomy with Bone Grafts in Preprosthetic Surgery: Technical Note

“…5 Available donor sites for obtaining interpositional grafts are either the cranial vault or iliac crest. 2,3,6 Though the grafts are placed in a stable position, they are susceptible to mobilization during the repositioning and fixation of maxillary plates and screws. This continuous movement of the grafts involves an increasement of the operation time, a more difficult surgical technique, and insufficient graft stability.…”

“…It allows the placement of osseointegrated implants and correction of facial height discrepancy simultaneously. [1][2][3] Although this technique has a satisfactory success rate, Breine and Brånemark in 1980 exposed nine negative factors affecting the survival of bone grafts 4 : (1) insufficient flap integrity during graft transferring; (2) prolonged operating time;(3) requirement of graft handling and shaping; (4) insufficient graft stability ending in severe resorption; (5) high bone density within the graft at the recipient site; (6) premature loading; (7) inadequate healing time after tooth extraction; (8) oversized grafts; (9) inadequate healing time after graft transfer. The previously listed factors should be put into consideration Le Fort I osteotomy with inlay grafts for a better success rate.…”

“…It allows the placement of osseointegrated implants and correction of facial height discrepancy simultaneously. [1][2][3] Although this technique has a satisfactory success rate, Breine and Brånemark in 1980 exposed nine negative factors affecting the survival of bone grafts 4 : (1) insufficient flap integrity during graft transferring; (2) prolonged operating time;…”

Ingénierie du tissu osseux oro-maxillofacial par combinaison de biomatériaux, cellules souches, thérapie génique

“…Les techniques actuelles de réparation privilégient l'apport de tissu osseux autologue, sous forme de greffes osseuses non vascularisées [1,2] ou de lambeaux libres micro-anastomosés [3], car l'utilisation de ces greffons autologues permet de réduire les phénomènes de rejet immunitaire. Ces techniques permettent ainsi l'apport conjoint d'un support (ou matrice) et de cellules osseuses, fonctionnelles et actives, ainsi qu'une éventuelle suppléance vasculaire en fonction de la technique chirurgicale et du volume greffé.…”