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The presence probability of mandibular lingla and antilingula - 03/04/20

Doi : 10.1016/j.jormas.2020.03.014 
S.-Y. Hsiao a, K.-J. Hsu b, c, S.-W. Liang b, Y.-C. Tseng b, d, , C.-M. Chen b, e,
a Department of dentistry for child and special needs, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan 
b Graduate institute of dental sciences, College of dental medicine, Kaohsiung medical university, Kaohsiung, Taiwan 
c Department of Dentistry, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan 
d Department of Orthodontics, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan 
e Department of Oral and Maxillofacial Surgery, Kaohsiung Medical University, Kaohsiung, Taiwan 

Corresponding authors. Graduate Institute of Dental Sciences, College of Dental Medicine, Kaohsiung Medical, University No. 100, Shih-Chuan 1st Road, Kaohsiung, Taiwan.Graduate Institute of Dental Sciences, College of Dental Medicine, Kaohsiung Medical, University No. 100Shih-Chuan 1st RoadKaohsiungTaiwan
Sous presse. Épreuves corrigées par l'auteur. Disponible en ligne depuis le vendredi 03 avril 2020

Abstract

Purpose

The lingula and antilingula are crucial surgical landmarks for mandibular setback surgery. The purpose of study was to investigate the correlation of presence probability between lingual and antilingula.

Materials and methods

A total of 180 cone-beam computed tomography sides were collected from 90 patients. The probability of absence of the lingula and antilingula was recorded with respect to the gender, mandible (unilateral and bilateral), and skeletal patterns (Class I, II, III); in addition, the correlations between these variables were analysed.

Results

Of the 180 sides, 9 sides showed the absence of the lingula (5%) and 34 sides showed the absence of the antilingula (18.9%). Pearson's test revealed that the presence of the lingula and antilingula differed nonsignificantly with respect to gender and skeletal patterns, respectively. The bilateral presence of the lingula was observed in 16 sides (91.1%), and that of the antilingula was observed in 122 sides (67.8%). Pearson's test verified a significant correlation between the presence of the left and right lingula (P<0.05). By contrast, gender and skeletal patterns were nonsignificantly correlated with the presence of the lingula and antilingula. The presence of the lingula was also nonsignificantly correlated with that of the antilingula.

Conclusion

Gender and skeletal patterns were nonsignificantly correlated with the presence of the lingula and antilingula, respectively. The presence of the lingula was also nonsignificantly correlated with that of the antilingula. Consequently, lingula and antilingula cannot serve as the absolute standards for mandibular setback surgery.

Le texte complet de cet article est disponible en PDF.

Keywords : Lingula, Antilingula, Mandibular foramen, Presence probability, SSRO, IVRO


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