Onlay Bone Grafting Medical Assignment Help

Onlay Bone Grafting

autogenous rib was first described by Terry, Albright, and Baker.U Maxillary onlay bone grafttng is indicated primarily when severe resorption of the maxillary alveolus is seen that results in the absence of a clinical alveolar ridge and loss of adequate palatal vault fmlll.22 Maxillary onlay grafting currently -is usually accomplrshed using corticocancellous blocks of iliac crest bone.- The blocks can he secured to the maxilla with small screws, eliminating mobility and decreasing resorption (Fig. 13-34). Cancellous bone is then packed around the grafts to improve contour. Implants can be placed at the time of grafting in some cases, but placement is.

FJG. 13-33-cont'd E, Preoperative radioqraph. F,Postoperative clinical photograph. (Split-thickness skin-grafting procedure has been done after HA augmentation to improve vestibular depth.) G, Postoperative radiograph demonstrating improvement in height of alveolar ridge area.

FJG. 13-33-cont’d E, Preoperative radioqraph. F,Postoperative clinical photograph. (Split-thickness
skin-grafting procedure has been done after HA augmentation to improve vestibular depth.)
G, Postoperative radiograph demonstrating improvement in height of alveolar ridge area.

FIG. 13-34 Iliac crest onlay bone reconstruction of maxilla. A, Diagram of atrophic maxilla. B, Clinical photograph. C, Three seqrnents of bo~e are secured in place. Small defects are filled with cancellous bone. 0, Clinical photograph.

FIG. 13-34 Iliac crest onlay bone reconstruction of maxilla. A, Diagram of atrophic maxilla. B, Clinical
photograph. C, Three seqrnents of bo~e are secured in place. Small defects are filled with cancellous
bone. 0, Clinical photograph.

 

 

 

 

 

 

 

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