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Year : 2018  |  Volume : 15  |  Issue : 1  |  Page : 44-51

Long-term clinical and radiographic stability of anterior maxillary setback using biodegradable Inion plates for osteosynthesis

Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Tanta University, Tanta, Egypt

Correspondence Address:
Mohammad A Elshall
Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Tanta University, Tanta
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/tdj.tdj_58_17

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Purpose The aim of this study was to evaluate the long-term stability of the anterior maxillary setback after anterior maxillary osteotomies and osteosynthesis using Inion biodegradable bone plates in patients with maxillary protrusion. Patients and methods Eight patients suffering from maxillary protrusion indicated and planned for anterior maxillary setback included in this study. Inion biodegradable bone-plate and screw system was used for immobilization of the anterior maxillary osteotomy. Evaluation was done both clinically and radiographically over 5 years period for detection of postsurgical stability criteria. Radiographically, panoramic and lateral cephalograph radiographs had been taken immediately, then 3 and 6 months, 1 year and 5 years postoperatively to evaluate the radiographic stability of the measurements. Results Patients' ages ranged from 18 to 32 years, with a mean of 24 years. Six (75%) patients were females and two (25%) were males. The clinical and esthetic improvement of patients during the follow-up periods that extended to 5 years were compatible with the cephalometric changes as the tipped-out upper incisors were corrected, the upper lip protrusion was greatly improved, the nasolabial angles were increased and the interincisal angles were also increased. A very minimal insignificant change was noted, and the esthetic and functional improvement were maintained throughout the follow-up periods. Conclusion The used biodegradable bone plates and screws in this study were proved to be very effective in maintaining long-term stability of the repositioned osteotomized anterior maxillary segment without reported postoperative complications.

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