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World Journal of Plastic Surgery، جلد ۱۰، شماره ۱، صفحات ۸-۱۴
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عنوان انگلیسی The Effect of Bimaxillary Orthognathic Surgery on Nasalance, Articulation Errors, and Speech Intelligibility in Skeletal Class III Deformity Patients
چکیده انگلیسی مقاله BACKGROUND We aimed to detect the changes in nasalance, articulation errors, and speech intelligibility after bimaxillary orthognathic surgery in skeletal class III pa-tients. METHODS This double-blinded before and after quasi-experimental study was conducted in the Department of Maxillofacial Surgery, Qaem Hospital, Mashhad, Iran from Mar 2019 to Apr 2020. The main intervention was maxillary advance-ment with LeFort I osteotomy and mandibular setback surgery with bilateral sagittal split osteotomy (BSSO). The nasalance score, speech intelligibility, and articulation errors were evaluated one week preoperatively (T0), 1 and 6 months (T1, T2) postoperatively by a speech therapist. The significance level was set at 0.05 using SPSS 21. RESULTS Eleven women (55%) and 9 men (45%) with a mean age of 31.95 ± 4.72 yr were enrolled. The mean maxillomandibular discrepancy was 6.15 ± 1.53 mm. The mean scores of nasalance for the oral, nasal, and oral-nasal sentences were significantly improved postoperatively (P< 0.001). Pre-operative articulation errors of consonants /r/, /z/, /s/ and /sh/ were corrected following the surgery. The percentage of speech intelligibility was significantly increased over time (P< 0.001). CONCLUSION The patients might show a normal articulation pattern and a modified nasalance feature, following maxillary advancement plus mandibular setback surgery.
کلیدواژه‌های انگلیسی مقاله Bimaxillary, Orthognathic surgery, Nasalance, Articulation
نویسندگان مقاله | Hamide Ghaemi
1. Department of Speech Therapy, School of Paramedical Sciences, Mashhad University of Medical Sci-ences, Mashhad, Iran.


| Erfan Emrani
Student Research Committee, Facul-ty of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran


| Ali Labafchi
Student Research Committee, Facul-ty of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran


| Khashyar Famili
3. Department of Oral and Maxillofa-cial Surgery, Mashhad Dental School, Mashhad University of Med-ical Science, Mashhad, Iran.


| Haleh Hashemzadeh
Department of Orthodontics, Tehran Dental School, Tehran University of Medical Science, Tehran, Iran


| Sahand Samieirad
Oral and maxillofacial diseases re-search center, Mashhad University of Medical Sciences, Mashhad, Iran
نشانی اینترنتی http://wjps.ir/browse.php?a_code=A-10-466-17&slc_lang=en&sid=1
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