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Autogenous Bone Block graft from Mandibular symphysis used for Augmentation of Alveolar ridge defect due to Facial Trauma: a Case report


Swati Bharadwaj, BDS, MDS – MDS- Oral and Maxillofacial Surgery

Uday Londhe, BDS, MDS – MDS- Oral and Maxillofacial Surgery


Purpose of the Study: The increased awareness of dental implants, has created more and more patients presenting to dental practitioners requesting for fixed teeth replacement solutions to their dilemmas. But for patients with dentoalveolar trauma, rehabilitation becomes difficult, especially when involving front teeth. Facial fracture with tooth avulsion is a complex injury that affects multiple tissues, and very few treatment options offer stable and long-term outcomes.

Methods: Here we report a case of reconstruction of anterior alveolar ridge defect in a 28 years old male after he suffered a Unilateral Lefort I fracture in a road traffic accident. The patient was operated for Open reduction and internal fixation under General Anesthesia. The fractured maxillary segment was fixed by miniplates and screws followed by removal of the avulsed 21, 22 and 23 teeth and associated fractured comminuted bone fragments. After an adequate healing period, an autogenous bone block was harvested from the chin, to augment bone for subsequent prosthetic rehabilitation of the missing 21,22 and 23 teeth alveolar region with an osseointegrated implant. After 6-months, two dental implants were placed w.r.t 21 and 23 region followed by a delayed screw-retained implant supported metal-ceramic prosthesis (FP3) fabrication.

Results: The prosthetic rehabilitation was successful, and after a follow-up period of 2 years, the achieved result was stable.

Conclusion: When the morphology of the bone does not allow proper placement, there are various bone augmentation procedures which aids in reconstruction of the residual alveolar ridge. In cases of bone defects due to fracture, mandibular symphysis can act as a safe, effective and an excellent source of autogenous bone for augmentation allowing a subsequent placement of a dental implant supporting a prosthetic restoration.

Articles: 1. K Harshakumar, Neenu Mary Varghese, R Ravichandran, S. Lylajam. "Alveolar Ridge Augmentation using Autogenous Block Bone Grafts Harvested From Mandibular Ramus to Facilitate Implant Placement: A Case Report". Int J Sci Stud. 2014;2(1):46-50. 2. Kahn A1, Shlomi B, Levy Y, Better H, Chaushu G.The use of autogenous block graft for augmentation of the atrophic alveolar ridge.Refuat Hapeh Vehashinayim. Jul 2003;20(3):54-64, 102.

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