Hümeyra TERCANLI ALKIŞ, Osman Murat BİLGE

RETROSPECTIVE EVALUATION OF MANDIBULAR ASYMMETRY WITH PANORAMIC RADIOGRAPHY IN ANGLE MALOCCLUSION SAMPLES

Objective The purpose of this study was to investigate the effect of different types of occlusion on mandibular asymmetry by using panoramic radiography in various anatomical points.Materials and Methods This retrospective study included 100 patients whose panoramic images and malocclusions were registered in a patient database. Asymmetry indices were evaluated according to the Habets asymmetry index formula using linear and angular measurements of images. The effects of malocclusions, age and gender on the asymmetry indices were investigated and ˂0.05 p value was considered significant Results Of the total 100 patients 51 (51%) were female and 49 (49%) were male. Associations were found between gender and the right corpus length, right and left gonial angle values, and between malocclusion and the right condylar height and right and left corpus length.Conclusion Although values of some parameters varied with gender and malocclusion, there was no statistically significant relationship found between age, gender and malocclusion and asymmetry index values for any parameter.

ANGLE MALOKLÜZYON ÖRNEKLERİNDE PANORAMİK RADYOGRAFİ İLE MANDİBULAR ASİMETRİNİN RETROSPEKTİF OLARAK DEĞERLENDİRİLMESİ

Amaç Bu çalışmanın amacı çeşitli anatomik noktalarda panoramik radyografi ile farklı oklüzyon tiplerinin mandibular asimetri üzerine etkisini araştırmaktır. Gereç ve Yöntem Bu retrospektif çalışmaya, panoramik görüntü ve malokluzyonları hasta veri tabanına kayıtlı 100 hastayı dahil edilmiştir. Asimetri indeksleri, doğrusal ve açısal ölçümler kullanılarak Habets asimetri indeksi formülüne göre değerlendirildi. Malokluzyonlar, yaş ve cinsiyetin asimetri indeksi üzerinde etkisi istatistiksel olarak araştırıldı ve ˂0.05 p değeri anlamlı kabul edildi. Bulgular 100 hastanın 51’ i (51%) kadın, 49’u (49%) erkekti. Cinsiyet ile sağ korpus uzunluğu, sağ ve sol gonial açı değerleri arasında, malokluzyon ile sağ kondil yüksekliği ile sağ ve sol korpus uzunluğu arasında ilişki tespit edildi. Sonuç Bazı parametrelerin değerleri cinsiyet ve maloklüzyon ile değişmekle birlikte, herhangi bir parametre için yaş, cinsiyet ve maloklüzyon ile asimetri indeksi değerleri arasında istatistiksel olarak anlamlı bir ilişki bulunmamıştır.

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1. Silvestrini-Biavati F, Ugolini A, Laffi N, Canevello C, Silvestrini-Biavati A. Early diagnostic evaluation of mandibular symmetry using orthopantomogram. Indian J Dent Res 2014; 25: 154-159.

2. Kasimoglu Y, Tuna EB, Rahimi B, Marsan G, Gencay K. Condylar asymmetry in different occlusion types. Cranio 2015; 33: 1014.

3. Sezgin OS, Celenk P, Arici S. Mandibular asymmetry in different occlusion patterns. Angle Orthod 2007; 77: 803-807.

4. Agrawal A, Bagga Kumar D, Agrawal P, Bhutani Kumar R. An evaluation of panoramic radiograph to assess mandibular assymmetry as compared to posteroanterior cephalogram. APOS Trends in Orthodontics 2015; 5: 197-201.

5. Almasan OC, Baciut M, Hedesiu M, Bran S, Almasan H, Baciut G. Posteroanterior cephalometric changes in subjects with temporomandibular joint disorders. Dentomaxillofac Radiol 2013; 42: 20120039.

6. Habets LL, Bezuur JN, Naeiji M, Hansson TL. The Orthopantomogram, an aid in diagnosis of temporomandibular joint problems. II. The vertical symmetry. J Oral Rehabil 1988; 15: 465-471.

7. Uysal T, Sisman Y, Kurt G, Ramoglu SI. Condylar and ramal vertical asymmetry in unilateral and bilateral posterior crossbite patients and a normal occlusion sample. Am J Orthod Dentofacial Orthop 2009; 136: 37-43.

8. Vitral RW, Telles Cde S. Computed tomography evaluation of temporomandibular joint alterations in class II Division 1 subdivision patients: condylar symmetry. Am J Orthod Dentofacial Orthop 2002; 121: 369-375.

9. Huang M, Hu Y, Yu J, Sun J, Ming Y, Zheng L. Cone-beam computed tomographic evaluation of the temporomandibular joint and dental characteristics of patients with Class II subdivision malocclusion and asymmetry. Korean J Orthod 2017; 47: 277-288.

10. Akın M, Ileri Z, Polat O, Başçiftçi FA. Evaluation of mandibular asymmetry in class II subdivision malocclusion Selcuk Dental Journal 2015; 2: 43-50.

11. Kurt G, Uysal T, Sisman Y, Ramoglu SI. Mandibular asymmetry in Class II subdivision malocclusion. Angle Orthod 2008; 78: 32-37.

12. Kjellberg H, Ekestubbe A, Kiliaridis S, Thilander B. Condylar height on panoramic radiographs. A methodologic study with a clinical application. Acta Odontol Scand 1994; 52: 43-50.

13. Habets LL, Bezuur JN, van Ooij CP, Hansson TL. The orthopantomogram, an aid in diagnosis of temporomandibular joint problems. I. The factor of vertical magnification. J Oral Rehabil 1987; 14: 475-480.

14. Kilic N, Kiki A, Oktay H. Condylar asymmetry in unilateral posterior crossbite patients. Am J Orthod Dentofacial Orthop 2008; 133: 382-387.

15. Kiki A, Kilic N, Oktay H. Condylar asymmetry in bilateral posterior crossbite patients. Angle Orthod 2007; 77: 77-81.

16. Al Taki A, Ahmed MH, Ghani HA, Al Kaddah F. Impact of different malocclusion types on the vertical mandibular asymmetry in young adult sample. Eur J Dent 2015; 9: 373-377.

17. Miller VJ, Bodner L. Condylar asymmetry measurements in patients with an Angle’s Class III malocclusion. J Oral Rehabil 1997; 24: 247-249.

18. Ramirez-Yanez GO, Stewart A, Franken E, Campos K. Prevalence of mandibular asymmetries in growing patients. Eur J Orthod 2011; 33: 236-242.