Hourglass mandibular anatomic variant incidence and treatment considerations for all-on-four implant therapy: report of 10 cases.
| Autor: | Butura CC; ClearChoice Dental Implant Center, Phoenix, AZ, USA., Galindo DF, Cottam J, Adams M, Jensen O |
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| Jazyk: | angličtina |
| Zdroj: | Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons [J Oral Maxillofac Surg] 2011 Aug; Vol. 69 (8), pp. 2135-43. |
| DOI: | 10.1016/j.joms.2011.02.070 |
| Abstrakt: | Purpose: The purpose of this study was to determine the incidence and treatment of hour glass variant mandibles for All On Four implant placement. Materials and Methods: Cone beam CAT scans were analyzed for 719 patients to determine the incidence of alveolar constriction in the mandible. Ten patients with alveolar constriction were treated over a 2-year period and retrospectively studied after 1 year in function. Results: Of 719 mandibles studied, 28 have "hour glass" variants identified for an incidence of 3.89%. Treatment of these cases were variously done including the use of guided bone regeneration, the use of long implants, bone reduction, and angulation strategies. Conclusions: The hour glass mandibular finding is a developmental or genetic variant that poses a significant anatomic difficulty for dental implant surgery for All On Four immediate function. (Copyright © 2011 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.) |
| Databáze: | MEDLINE |
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