[닫기]
잠시만 기다려 주세요. 로딩중입니다.

Application of the foramina of the trigeminal nerve as landmarks for analysis of craniofacial morphology

Korean Journal of Orthodontics 2019년 49권 5호 p.326 ~ 337
 ( Lim Ba-Da ) - Gangneung-Wonju National University College of Dentistry Department of Orthodontics

최동순 ( Choi Dong-Soon ) - Gangneung-Wonju National University College of Dentistry Department of Orthodontics
 ( Jang In-San ) - Gangneung-Wonju National University College of Dentistry Department of Orthodontics
차봉근 ( Cha Bong-Kuen ) - Gangneung-Wonju National University College of Dentistry Department of Orthodontics

Abstract


Objective: The objective of this study was to develop new parameters based on the foramina of the trigeminal nerve and to compare them with the conventional cephalometric parameters in different facial skeletal types.

Methods: Cone-beam computed tomography (CBCT) scans and cephalograms from 147 adult patients (57 males and 90 females; mean age, 26.1 years) were categorized as Class I (1o < ANB < 3o), Class II (ANB > 5o), and Class III (ANB < ?1o). Seven foramina in the craniofacial area?foramen rotundum (Rot), foramen ovale (Ov), infraorbital foramen, greater palatine foramen, incisive foramen (IF), mandibular foramen (MDF), and mental foramen (MTF)?were identified in the CBCT images. Various linear, angular, and ratio parameters were compared between the groups by using the foramina, and the relationship between the new parameters and the conventional cephalometric parameters was assessed.

Results: The distances between the foramina in the cranial base did not differ among the three groups. However, the Rot-IF length was shorter in female Class III patients, while the Ov-MTF length, MDF-MTF length, and Ov-MDF length were shorter in Class II patients than in Class III patients of both sexes. The MDF-MTF/FH plane angle was larger in Class II patients than in Class III patients of both sexes. Most parameters showed moderate to high correlations, but the Ov-MDF-MTF angle showed a relatively low correlation with the gonial angle.

Conclusions: The foramina of the trigeminal nerve can be used to supplement assessments based on the conventional skeletal landmarks on CBCT images.

키워드

Computed tomography; Anatomy; Foramen; Trigeminal nerve
원문 및 링크아웃 정보
   
등재저널 정보