Relationship of Skeletal Class of Malocclusion with Radiomorphometric Indices of Mandible in Short-Face Patients
Journal of Dental School,
Vol. 41 No. 1 (2023),
21 November 2023
,
Page 23-28
https://doi.org/10.22037/jds.v41i1.42598
Abstract
Objectives This study aimed to assess the relationship of skeletal class of malocclusion with some radiomorphometric indices of the mandible in short-face patients.
Methods This cross-sectional study was conducted on 179 short-face patients between 17 to 30 years who sought orthodontic treatment during 2013 to 2020. The gonial and antegonial angles, and type and depth of antegonial notch were assessed bilaterally on traced panoramic radiographs. The correlation between radiomorphometric indices and class of malocclusion was analyzed using One-way ANOVA and Independent T-test by SPSS version 25 (alpha=0.05).
Results The mean size of gonial angle was significantly different among the three classes of malocclusion (P<0.001), and the largest gonial angle was recorded in class III, and the smallest in class I patients. The mean size of antegonial angle and antegonial depth were not significantly different among the three classes of malocclusion (P=0.487). The difference in the mean size of gonial and antegonial angles was not significant between males and females (P=0.119, and P=0.176, respectively). However, the mean antegonial depth in males was significantly greater than that in females (P<0.001). Type I antegonial notch was more common in females than males at both sides. Age had no significant correlation with gonial angle, antegonial angle, or antegonial notch depth (P=0.422, P=0.737, P=0.392, respectively).
Conclusion Facial growth pattern in short-face patients can be predicted with antegonial angle. Also there is significant correlation between skeletal class of malocclusion and the size of gonial angle.
- “Dental Occlusion”
- “Face”
- “Radiology”
- “Malocclusion”
How to Cite
References
Slagsvold O, Pedersen K. Gonial angle distortion in lateral head films: a methodologic study. Am J Orthod. 1977;71(5):554-64.
Alhaija ES. Panoramic radiographs: determination of mandibular steepness. J Clin Pediatr Dent. 2005; 29(2):165-6.
Mangla R, Singh N, Dua V, Padmanabhan P, Khanna M. Evaluation of mandibular morphology in different facial types. Contemp Clin Dent. 2011;2(3):200-6.
Bjork A. Variations in the growth pattern of the human mandible: longitudinal radiographic study by the implant method. J Dent Res. 1963;42(1):400-11.
MacIntosh RB. Experience with the sagittal osteotomy of the mandibular ramus: a 13-year review. J Maxillofac Surg. 1981; 9(3):151-65.
Porwolik M, Porwolik K, Domagała ZA, Woźniak S, Dąbrowski P, Kacała R, et al. Typology of the antegonial notch in the human mandible. Folia Morphol (Warsz). 2015;74(3): 365-71.
Jarabak, J. R., Fizzel, J. A. Technique and treatment with light-wire edgewise appliances,. Edition:2th Ed. Mosby, Saint Louis, 1972. Vol. 1 & 2.
Jacobson A. The "wits" appraisal of jaw disharmony. Am J Orthod. 1975;67(2):125-38.
Salem OH, Al-Sehaibany F, Preston CB. Aspects of mandibular morphology, with specific reference to the antegonial notch and the curve of spee. J Clin Pediatr Dent. 2003;27(3):261-5.
Tayebi A, Tofangchiha M, Fard MA, Gosili A. The relationship of mandibular radiomorphometric indices to skeletal age, chronological age and skeletal malocclusion type. J Clin Exp Dent. 2017;9(8):e970-5.
Moreno I, Sánchez T, Ardizone I, Aneiros F, Celemin A. Electromyographic comparisons between clenching, swallowing and chewing in jaw muscles with varying occlusal parameters. Med Oral Patol Oral Cir Bucal. 2008;13(3):E207-13.
Ingervall B, Minder C. Correlation between maximum bite force and facial morphology in children. Angle Orthod. 1997; 415-22;discussion 423-4.
Atef M, Sobhy A, Khalid A, Ismail M. Role of three dimensional computed tomography in age estimation from mandible of a sample of libyan population in tripoli. Zagazig J. Forensic Med.& Toxicology. 2021;19(2):13-30.
Behl AB, Grewal S, Bajaj K, Baweja PS, Kaur G, Kataria P. Mandibular ramus and gonial angle—identification tool in age estimation and sex determination: a digital panoramic radiographic study in north Indian population. J Indian Acad Oral Med Radiol. 2020;32(1):31-6.
Tafakhori Z, Mostafazadeh G, & Fathollahi MS. A study on the association of mandible anatomy with age and gender in panoramic radiography of patients referred to Rafsanjan dental school clinic. J Dent Medicine (Tehran). 2017;29(4):253-61.
Mostafa RA, El-Ashiry M K, Farid MM. Effect of age, sex, and dental status on mental and panoramic mandibular indices of the mandible: a retrospective study. Egypt J Oral Maxillofac Surg. 2011;2(1):22-6.
Gupta S, Dhingra PS, Chatha, S. A study of comparison and correlation between antegonial notch depth, symphysis morphology, and ramus morphology among different growth patterns in angle's class II division 1 malocclusion. Indian J Dent Sci. 2018;10(1):21-5.
Singer CP, Mamandras AH, Hunter WS. The depth of the mandibular antegonial notch as an indicator of mandibular growth potential. Am J Orthod Dentofacial Orthop. 1987;91(2): 117-24.
Mangla R, Singh N, Dua V, Padmanabhan P, Khanna M. Evaluation of mandibular morphology in different facial types. Contemp Clin Dent. 2011;2(3):200-6
Bhardwaj D, Kumar JS, Mohan V. Radiographic evaluation of mandible to predict the gender and age. J Clin Diagn Res. 2014;8(10):ZC66-9.
- Abstract Viewed: 173 times
- PDF Downloaded: 71 times