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UĞURLU, FAYSAL

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Author: ACAR, ZEYNEP AHÜ ×

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    [Surgically assisted rapid maxillary expansion. An evaluation of different surgical techniques and their effect on maxillary dentoskeletal complex based on cone-beam computed tomography. Preliminary report]. [Expansion maxillaire rapide assistée chirurgicalement. Évaluation de différentes techniques chirurgicales et de leur effet sur le complexe dento-squelettique maxillaire par tomographie volumique à faisceau conique (CBCT). Rapport préliminaire.]
    (2014) UĞURLU, FAYSAL; Sygouros A., Motro M., Ugurlu F., Acar A.
    To evaluate and compare the dentoskeletal effects associated with surgically assisted rapid maxillary expansion (SARME) performed with (+) and without (-) pterygomaxillary disjunction (PD), utilizing cone beam computed tomography (CBCT). A retrospective study of 9 patients (1 male, 8 females, mean age 18.9 years) undergoing SARME who were divided into two groups. In group (-PD) the surgical technique followed involved bilateral LeFort I type of osteotomy plus midline osteotomy. In group (+PD) same protocol was followed and pterygoid disjunction was performed additionally. Three-dimensional CBCT scans were obtained preoperatively and 3-6 month postretention. A Hyrax type acrylic bonded expander was used. MIMICS 14.0 (Materialise Europe, Belgium) software was used to evaluate transverse expansion at skeletal, dentoalveolar and dental level. Additionally dental inclinations, alveolar bending and the pattern of expansion sagittally were assessed. Wilcoxon's and Mann Whitney U tests were used for comparisons. All linear transverse measurements at dental and dentoalveolar level were found to have a statistically significant increase (P < 0.05) in both treatment groups. No statistically significant differences were found between the two groups as well as within groups on skeletal level (except of the anterior expansion of maxilla between piriform rims bilaterally). In -PD group significant buccal tipping of the 1(st) premolar was observed as well as increased buccal bending of the alveolar crest. This study confirms that SARME is an effective treatment of maxillary transverse deficiency. CBCT is an adequate tool to assess dentoskeletal treatment effects. © EDP Sciences, SFODF, 2014.
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    Surgically assisted rapid maxillary expansion: Cone-beam computed tomography evaluation of different surgical techniques and their effects on the maxillary dentoskeletal complex
    (MOSBY-ELSEVIER, 2014) UĞURLU, FAYSAL; Sygouros, Antonios; Motro, Melih; Ugurlu, Faysal; Acar, Ahu
    Introduction: The aims of this study were to evaluate and compare skeletal, dentoalveolar, dental, and periodontal changes in surgically assisted rapid maxillary expansion (SARME) patients with and without pterygomaxillary disjunction. Methods: The records of 20 patients who underwent SARME in the clinics of the dental school at Marmara University in Turkey were collected and divided into 2 groups of 10 patients each, according to the surgical protocol followed. Cone-beam computed tomography images before the operation and 3 to 6 months after the end of active expansion were analyzed by 20 linear and 7 angular measurements. The reliability of the 3-dimensional analysis was investigated. Results: All transversal measurements in the dentoalveolar and dental levels increased after expansion in both the SARME with pterygomaxillary disjunction and the SARME without pterygomaxillary disjunction groups with no significant differences between them. In the SARME without pterygomaxillary disjunction group, more pronounced buccal alveolar bending and buccal tipping of the posterior teeth were found, but the difference did not reach statistical significance. SARME reduces buccal alveolar width in the premolar region significantly when pterygoid disjunction is not performed. Conclusions: SARME with or without pterygomaxillary disjunction is an effective technique to treat maxillary transverse deficiency in adolescent and adult patients. Pterygomaxillary disjunction is advised in periodontally compromised patients. Cone-beam computed tomography scanning is a reliable method for studying the dentoskeletal effects of SARME.