ABSTRACT

Background: Cone beam computed tomography is the most effective device for assessing the link between articular eminence and dental arch shape. It provides accurate information on these variables. Objectives: The present investigation utilised cone beam computed tomography imaging to assess the correlation between the morphology of the articular eminence and the form of the dental arch in patients exhibiting class I, II, and III skeletal relationships. Information on the articular eminence and the morphology of the dental arch can be collected using cone beam computed tomography. This imaging technique is regarded the most effective method for evaluating any correlation between these variables. Materials and Methods: This prospective study was undertaken at the Baquba teaching hospital in Diyala city from December 2021 to June 2023. A total of 200 patients, comprising an equal number of males and females, participated in this study. The age range of the participants was between 18 and 50 years. These individuals got cone beam computed tomography imaging as a component of their medical care. The data collected in these instances has been utilised to carry out the inquiry continuously. This study obtained approval from both the Iraqi Ministry of Health and the scientific committee of the University of Diyala College of Medicine in Baquba city to use the case in question. Results: Comparison of Different Angles (A, B, C) between different arch shapes in right and left Side, no significant differences were found in Angle A, Angle B, or Angle C between different dental arch classes (p-values > .05). Comparison of articular eminence height between different arch shapes, no significant differences were found in articular eminence height between different dental arch classes (p=.872), additionally, our study found no significant difference between the inclination of the articular eminence and the various skeletal relationships of dental arches. Furthermore, our study revealed that the most common shape of dental arches was ovoid, followed by square and tapering arches. Similarly, no significant difference was found between the shape of the articular eminence and the different forms of dental arches (ovoid, square, and tapered). Conclusion: A thorough comprehension of the complex connections between the angle of the dental arch and the slope of the articular eminence was achieved by meticulously analysing various angles on both the left and right sides. Despite identifying several associations, the study ultimately determined that none of these relationships achieved statistical significance. The study broadened its focus to encompass the intricate correlation between the width and height of the articular eminence in relation to different arch shapes. The study discovered limited and irregular connections between the maxillary and mandibular arches, which have an oval, tapering, and square shape. The study aimed to detect distinctive patterns in the anatomy of the articular eminence in individuals with class I, II, or III occlusion. The findings indicated that there were negligible differences in the height or angles of AE (alveolar bone crest) among different dental arch types and classes.