| Affiliation: | 1.Department of Oral Maxillofacial Surgery, Key Laboratory of Oral Clinical Medicine,The Affiliated Hospital of Qingdao University,Qingdao,China;2.Department of Implantology,The Affiliated Hospital of Qingdao University,Qingdao,China;3.Department of Stomatology,The Affiliated Hospital of Qingdao University,Qingdao,China;4.Department of Oral Maxillofacial Surgery, Stomatological Hospital, College of Medicine,Xi’an Jiaotong University,Xi’an,China |
| Abstract: | ObjectivesBone quality comprises bone mineral density and trabecular microstructure. The aim of this study was to explore the effectiveness of cone-beam computed tomography (CBCT) in evaluating bone quality of large odontogenic cystic lesions after decompression using CBCT and BoneJ software, and to determine whether secondary definitive surgery can be guided using CBCT data.MethodsTwenty-seven patients with large odontogenic cystic lesions treated by decompression were evaluated by CBCT. Medical history and perioperative details were analyzed.ResultsThe (Delta)CT values for all patients with cystic lesions decreased after decompression, with no differences for age, sex, and histology (p?>?0.05). Bone volume fraction and trabecular number of new cancellous bone (0.012%, 0.17/mm3) were lower than those of normal cancellous bone (0.189%, 0.47/mm3) (p?p?p?=?0.746). The (Delta)CT values of five patients with favorable osteogenesis were ??72, ?86, ??86, ?47, and ??55, those of three patients with moderate osteogenesis were ??107, ?120, and ??71, and those of two patients with poor osteogenesis were ??165 and ??127 during secondary definitive surgery.ConclusionsCBCT is considered beneficial for evaluating bone quality of large odontogenic cystic lesions after decompression, while providing potentially useful information for referral to secondary definitive surgery. |
