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An investigation into the relationship between the cranial base angle and malocclusion in gujarati population.

Journal Name:

  • Indian Journal of Basic & Applied Medical Research

Publication Year:

  • 2014
Author Name
Abstract (2. Language): 
Introduction: Malocclusions with skeletal discrepancies can be caused by abnormal forms, sizes and positions of the cranial base, maxilla and mandible. Aim of the present study was to assess the influence of cranial base angle on maxilla, mandible, maxillomandibular relationship and to compare and correlate the cranial base angle with size and position of maxilla and mandible; to evaluate the norms for cranial base angle in Gujarati population. Material and Methods: The present study was conducted at the Department of Orthodontics,Government Dental College and Hospital,Ahmedabad. 160 Lateral Cephalograms were obtained with age between 15 -20 years.The sample was divided into 4 groups.Each group (Class I, Class II Div 1, Class II Div 2 and Class III) contained 40 subjects, 20 males and 20 females. Results Whencomparing CRANIAL BASE ANGLE( NSAr, NSBa )in Class I control group with Class II Div 1and Class II Div 2 shows that the CRANIAL BASE ANGLE significantly increased in Class II Div 1 and Class II Div 2.Cranial base angleissignificantly decreased in Class III compared to that found in Class I group. Conclusion: The jaw relation tends to change from class III to class II, with progressive flattening of the cranial base and vice –versa. Angle SNA has a significant negative correlation with cranial base angle. The mandibular position is influenced to a greater extent by the cranial base angle rather than maxillary position. Statistically significant difference was observed in Cd-ANS, Ar-ANS, Ar-Pog, Cd-Pog depicting that maxillary and mandibular length is greater in gujarati males as compared to females.
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