Introduction:Gonial angle is an important parameter of the craniofacial complex giving an indication about the vertical parameters and symmetry of the facial skeleton. Both orthopantomogram (OPG) and lateral cephalograms can be used for the measurement of gonial angle. Because of the superimpositions seen on lateral cephalograms, reliable measurement of the gonial angle becomes difficult. The aim of the present study is to check the possible application and reliability of OPG for gonial angle determination by clarifying whether there is any significant difference between the determination of gonial angle from OPG and cephalogram.Materials and Methods:Gonial angle measurements were made on lateral cephalograms and orthopantomograms of 98 patients - 44 males (mean age 25.9 years) and 54 females (mean age 21.3 years), and compared using Statistical Package for Social Sciences.Results:One-way analysis of variance demonstrated no significant differences between the values of gonial angles determined by lateral cephalogram and panoramic radiography. Pearson correlation showed a high correlation between cephalometric and OPG gonial angle value.Conclusion:Panoramic radiography can be used to determine the gonial angle as accurately as a lateral cephalogram. For determination of the gonial angle, an OPG may be a better choice than a lateral cephalogram as there are no interferences due to superimposed images of anatomical structures as in a lateral cephalogram. Thus, the present study substantiates the possibility of enhancing the clinical versatility of the panoramic radiograph, which is an indispensable tool for dental diagnosis.

Aims and Objectives:Transmigration is a rare phenomenon seen almost exclusively in the mandibular canines. The aim of the present study is to review transmigration phenomenon.Materials and Methods:Appropriate guidelines for a systematic review were followed. The time period selected for the present systematic review was 2001–2016. The studies were selected from various electronic databases on the basis of their title, study, design, keywords, and abstracts. A total of 150 citations were searched initially, and after proper screening, 59 relevant articles were included. Additional data was obtained by searching journals and reference lists.Results:The literature search shows that transmigration is more frequent in the mandible than maxilla. The etiology of the condition is obscure; however, multiple factors have been attributed to the condition. They are more readily recognized now with the advent of panoramic radiographs. Transmigration is a rare anomaly causing varied manifestations and requires an interdisciplinary approach for management.Conclusion:Early diagnosis of impacted canines is mandatory for timely treatment to ensure facial harmony and improved function.

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IntroductionThe knowledge of the nature and magnitude of growth and development of human face is important for sound diagnosis and treatment of dentofacial disharmonies. The depth of antegonial notch and morphology of mandible are important indicators of growth pattern. Objective The purpose of this study was to evaluate the antegonial notch depth, mandibular symphysis morphology, and symphysis inclination in various facial types categorized into the normo-, hypo-, and hyperdivergent groups using various parameters. Materials and Methods Pretreatment lateral cephalograms of 45 adult patients with age group between 16 and 30 years were taken. The antegonial notch depth, symphysis height, symphysis depth, ratio (height of symphysis/depth of symphysis), angulation of symphysis, and inclination of symphysis to mandibular plane were analyzed statistically. Result It was found that the mandible with the hyperdivergent growth pattern was associated with an increased antegonial notch depth, increased symphysis height, reduced symphysis depth, large ratio, small symphysis angle, and large inclination angle of the symphysis. Conclusion The results for the antegonial notch depth, symphysis height, symphysis depth, and ratio of symphysis height to symphysis depth were statistically significant whereas the angulation of the symphysis and inclination of the symphysis did not show statistically significant results. AbstractKeywords ► hypodivergent ► hyperdivergent ► antegonial notch ► mandibular morphology Dent J Adv Stud 2018;6:80-88

Introduction Palatal rugae or plica palatine are the finger prints of the oral cavity and the arch length varies between males and females. These two parameters constitute an integral part of the anthropometric studies in the realms of dentistry as well as forensic odontology. The aim of this study was to assess whether any relationship existed between the upper arch length and the rugae pattern and whether these two parameters showed any gender differentiation. Materials and Methods The sample consisted of upper and lower study models of 60 subjects (30 males and 30 females). Arch lengths were measured using a brass wire and rugae were traced on the dental casts and assessed by applying the Thomas and Kotze classification (1983). The data collected was subjected to statistical analysis. Results The results showed that the maxillary and mandibular arch length dimensions were higher in males than in females; however, the differences were found to be statistically insignificant. The assessment of rugae pattern showed that the male subjects had a higher number of rugae. The differences in rugae pattern distribution for male and female subjects were found to be statistically significant. Conclusion The palatal rugae pattern and maxillary arch length can be used as an additional method in differentiating gender between human population groups.