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1.
Dent Traumatol ; 33(1): 27-31, 2017 Feb.
Article in English | MEDLINE | ID: mdl-27397743

ABSTRACT

BACKGROUND/AIM: The mandibular angle fracture occasionally widens at the lower border after surgery using a single miniplate. However, the effects of an interfragmentary gap have not been fully investigated. The aim of this study was to determine the effects of gaps caused by mandibular angle fracture surgery using a single superior border miniplate technique. MATERIAL AND METHODS: In this prospective study, the interfragmentary gap was measured by panoramic radiography and cone-beam computed tomography (CBCT) postoperatively. The width of the gap measured by panoramic radiography and CBCT scans was compared. The patients were divided into two groups based on the gap width (more or less than 1.5 mm). In CBCT scans, bucco-lingual displacement of the proximal segment was evaluated. Clinical results and complication rates were investigated according to the gap and displacement. The findings were statistically analyzed. RESULTS: Thirty-two patients were included in the study. The mean interfragmentary gap widths were 1.56 ± 0.83 mm by panoramic radiography and 2.12 ± 0.87 mm by CBCT scans. CBCT measured a gap width of approximately 0.5 mm wider than panoramic radiography (P = 0.001). Twenty-two patients (68.8%) had an interfragmentary gap width of >1.5 mm, and ten patients (31.2%) had a gap width of <1.5 mm. All patients had favorable occlusion at the last clinical examination. There were no statistically significant differences in intermaxillary fixation periods and complication rates (P > 0.05). One patient in the wider gap group experienced pain in the temporomandibular joint when opening the mouth. Six patients (18.8%) had lingual displacement of the proximal fragment. Displacement did not significantly influence the complication rate (P > 0.05). CONCLUSION: The presence of an interfragmentary gap after mandibular angle fracture surgery did not affect the clinical outcome.


Subject(s)
Mandibular Fractures/diagnostic imaging , Adolescent , Adult , Cone-Beam Computed Tomography , Female , Fracture Fixation, Internal/methods , Humans , Male , Mandibular Fractures/surgery , Middle Aged , Prospective Studies , Radiography, Panoramic
2.
Maxillofac Plast Reconstr Surg ; 37(1): 26, 2015 Dec.
Article in English | MEDLINE | ID: mdl-26339584

ABSTRACT

We experienced a patient of subcondylar fracture who had a squared contour of the lower face with prominent angle of the mandible and masseter hypertrophy. Our patient was increasingly seeking esthetic improvement of the lower third of the face. But she did not want multi-stage operations. Thus, we decided and performed a one-stage mandibular angle ostectomy with fracture management. We have a stable and esthetic result simultaneously despite fractures of the fixation plates during follow-up period, so report a case.

3.
J Korean Assoc Oral Maxillofac Surg ; 39(2): 94-9, 2013 Apr.
Article in English | MEDLINE | ID: mdl-24471025

ABSTRACT

Focal osteoporotic bone marrow defect (FOBMD) is a radiolucent area corresponding to the presence of hematopoietic tissue rarely found in the jaws. FOBMD is most commonly located in the mandibular edentulous posterior area of a middle-aged female. From November 2011 to November 2012, we experienced three cases involving removal of implants that had accidentally fallen into the FOBMD area. All patients happened to be female, with a mean age of 54 years (range: 51-60 years). One case involved hypoesthesia of the lower lip and chin, while two cases healed without any complication. Displacement of an implant into the FOBMD area is an unusual event, which occurs rarely during placement of a dental fixture. The purpose of this study was to report on three cases of FOBMD and to provide a review of related literature.

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