Donor-site morbidity after chin bone harvesting

Key Points

• An investigation of morbidity experienced by patients following chin graft procedures for augmentation of maxilla or mandible.

• When treatment options are being discussed with a patient, it is important for the GDP and specialist to fully inform the patient of the possible morbidities that can be experienced at the donor site.

• This paper will inform GDPs and specialists who may be considering referral of patients for such treatment.

Abstract

Aim The aim of this prospective study was to evaluate the morbidity at the donor site following harvest of chin bone for intra-oral augmentation.

Method The morbidity experienced by 27 consecutive patients who had undergone chin bone harvesting to augment intra-oral sites prior to implant placement at the Department of Oral and Maxillofacial Surgery, University Dental Hospital of Manchester was evaluated at one week, one, three and 12 months post-operatively.

Results Nine (33%) patients suffered post-operative morbidity. One patient experienced paraesthesia of the chin and lower lip and a further patient, paraesthesia of the gingivae immediately post-operatively. Both patients had full recovery when reviewed at three months. Two patients experienced pain at the graft site for up to three months post-operatively. Five (18.5%) patients experienced woodiness/numbness of the lower anterior teeth at the first post-operative visit and at 12 months, two patients continued to have no sensitivity in the lower anterior incisor teeth. None of the patients reported altered contour or change in profile of the chin area. Twenty-three (85.2%) patients had successful grafts with placement of implants thereafter.

Conclusion It is important for GDPs and specialists to make patients aware of the possible morbidities following harvest of bone from the chin.

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