Browsing by Author "Gupta, Sanjay P"
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Publication Association of ABO Blood Groups with Craniofacial Morphology among Orthodontic Patients in Selected Private Clinics of Kathmandu(Institute of Medicine, 2019) Gupta, Sanjay PABSTRACT Introduction The craniofacial morphology and blood groups both are related to genetic components, hence it can be hypothesized that blood groups have an association with craniofacial morphology. Some studies showed the relationship whereas others could not find any relationship in different population. The aim of this study was to find out the relationship between ABO blood groups and craniofacial morphology among orthodontic patients of Kathmandu district. Methods In this cross sectional analytical study, 385 participants (age range from 13-45 years) were selected among the orthodontic patients who came for orthodontic treatment in private orthodontic clinics. After obtaining written consent, all the patient’s demographic information were recorded and lateral cephalograms were obtained from the patient’s record. Blood group of all the participants was recorded. Results Among 385 participants, 162 (42.07%) were male while 223 (57.93%) were female and the mean age was 16.31±4.38 years. Twenty cephalometric parameters depicting craniofacial morphology were digitally analyzed using lateral cephalograms. The prevalence of blood group O patients was highest (32.20%) followed by blood group B (30.64%), blood group A (29.88%) and blood group AB (7.28%). Statistical analysis with ANOVA revealed nine out of twenty cephalometric parameters were statistically significant among different blood groups (p<0.05). Tukey post hoc test was done to find out the difference among the groups. Conclusion The evaluation of relationship between blood group and craniofacial morphology revealed that blood groups have association with some craniofacial parameters. This suggests, there may be some genetic influence of ABO blood group on craniofacial morphology. Keywords: ABO blood groups, association, craniofacial morphology, orthodontic patientsPublication Palatal Rugae as an Indicator of Sexual Dimorphism(Institute of Medicine, 2021) Dahal, Samarika; Baral, Radha; Gupta, Sanjay P; Dahal, Sirjana; Sharma, RinuABSTRACT Introduction: Palatoscopy or palate rugoscopy has been studied over the years to identify its unique characteristics to utilize for the human identification process. The unique anatomical location of the palatal rugae provides stability which along with the uniqueness of the palatal rugae pattern can contribute in human identification. Despite its simplicity and reliability, the palatal rugae is unexplored in the Nepalese population. The objective of the present study is to identify the rugae pattern and assess its sexual dimorphism. Methods: This was a cross-sectional analytical study conducted in Tribhuvan University Dental Teaching Hospital (TUDTH). The characteristics of palatal rugae based upon number, length, shape, and unification were analyzed on 100 dental casts. The rugae patterns were marked with a black color graphite pencil under adequate illumination. The length of the rugae was measured with the help of a digital vernier caliper and brass wire. The independent sample T-test and Mann Whitney U tests were used to assess the sexual dimorphism. Results: The predominant type of rugae according to the size in both males and females was primary rugae. According to the shape of the rugae, the predominant type of rugae was wavy followed by curved, straight, diverging, converging, and circular in both the sexes. However, no significant difference was seen in the rugae pattern in males and females. Conclusion: Based on the findings of the present study, the use of palatal rugae for sex determination is not recommended. Keywords: Human identification, palatal rugae, sexual dimorphism