Jawbone cavitation (BC) is not uncommon and is considered to be related to some cases of unexpected implant displacement into deep jawbone space. Here, a series of cases with BC is described, in which the lesions were accidentally found and successfully treated by bone grafting and dental implantation.
Thirty-four partially edentulous patients who were found to have BC during dental implant surgeries were included in this study. Alloplast bone substitute (β–tricalcium phosphate) grafting with immediate or staged locking-taper implant placement was performed. Bone filling and implants on BC were followed up to 36 months, and they were evaluated clinically and radiographically to verify treatment outcome.
A total of 41 BCs were found at premolar and molar regions, which involved one or more teeth breadth. Nearly most of the lesions occurred in the mandible (95.1%, 39/41). Histologically, they were compatible with focal osteoporotic marrow defects. Fifty-two locking-taper implants and final restorations were delivered on 38 BCs. One implant failed due to loss of integration. The overall cumulative 3-year implant survival rate was 98.1%.
By carefully examining and managing the surgical bed, the current treatment modality was shown to yield a satisfactory outcome for restoration of edentulous ridge with underneath BC.
*Attending Surgeon and Assistant Professor, Oral and Maxillofacial Surgery, Department of Stomatology, Taipei Veterans General Hospital and School of Dentistry; and National Yang-Ming University, Taipei, Taiwan. Research Fellow, Department of Oral and Maxillofacial Surgery, Massachusetts General Hospital and Harvard School of Dental Medicine, Boston, MA.
†Faculty, Dental Implant Unit and Research Department, Faculty of Dentistry, University of Cartagena, Cartagena, Colombia.
‡Oral and Maxillofacial Surgeon, Good Samaritan Medical Center, Brockton Oral and Maxillofacial Surgery, Inc., Brockton, MA.
Reprint requests and correspondence to: Sung-Kiang Chuang, DMD, MD, DMSc, P.O. Box 67376, Chestnut Hill Station, Chestnut Hill, MA 02467, Phone: +1-617-527-4981, E-mail: email@example.com