Dominance of Carrying Angle in Right-hand among Dental Students of a Teaching Hospital: A Descriptive Cross-sectional Study.

Introduction: Carrying angle is an acute angle formed between extended arm and forearm when palm is directed forward. This angle is formed due to the angulation of the articulating surfaces of the humerus with the forearm. The angle is greater in dominant hand than in non-dominant hand in both males and females. Thus, this study aims to measure the carrying angle and find the prevalence of dominance of the carrying angle in the right-hand among dental students. Methods: A descriptive cross-sectional study was conducted among 138 students with the age ranging from 18-23 years in a teaching hospital. Ethical clearance was taken from Institutional Review Committee (Reference number: 28/021) of a tertiary dental college and teaching hospital. Convenience sampling was done. Carrying angle was measured in right and left-hands of students with the help of a goniometer. Statistical Package for the Social Sciences version 20.0 was used for data analysis. Point estimate at 95% Confidence Interval was calculated along with frequency and percentage for binary data. Results: Among 138 students, the dominance of carrying angle in right-hand was found in 107 (77.53%) (70.56-84.49 at 95% Confidence Interval). Prevalence of greater value of carrying angle in right-hand was found in 71 (78.88% ) female and 36 (75%) male students. Conclusions: The prevalence of dominance of the carrying angle in the right-hand among dental students was lower than the other studies done in similar settings. Keywords: elbow; hand; humerus.

Type A Cubital Venous Pattern among Students of a Dental College: A Descriptive Cross-sectional Study.

INTRODUCTION: Superficial veins in cubital fossa vary frequently in their anatomical pattern. The knowledge of variation of the cubital venous pattern is very essential for medical professionals for venous access during different medical procedures. This study aims to find the prevalence of Type A cubital venous pattern among students of a dental college. METHODS: This descriptive cross-sectional study was conducted among 133 dental students of age 18 to 25 years in the department of anatomy of a dental college from November 2020 to February 2021. This study was conducted after obtaining ethical clearance from the Institutional Review Committee. Convenience sampling used and data was analyzed using Statistical Package for Social Sciences version 20. Point estimate at 95% Confidence Interval was calculated along with frequency and proportion for binary data. RESULTS: Out of 133 dental students, Type A cubital venous pattern was found in 96 (72.18%) (64.56-79.79 at 95% Confidence Interval). Type A cubital venous pattern was seen in the left arm in 116 (43.61%) and in the right arm of 76 (28.57%) students. This pattern was noticed in 30 (22.55%) male and 103 (77.44%) female students respectively. CONCLUSIONS: This study showed higher Type A cubital venous pattern among dental students than other international studies.

Mean Nasal Index of Dental Students of A Dental College in Nepal.

INTRODUCTION: Human nose is one of the important anthropometric parameters for identification of sex and ethnicity of an individual of an unknown identity. The nasal index holds a great value in anthropological studies, because it is one of the anthropometric indices acknowledged in nasal surgery as well as management. The study aims to find the mean nasal index and the nose type of dental students of Kantipur Dental College of Nepal. METHODS: This descriptive cross-sectional study was conducted among 140 dental students in the Department of Anatomy, Kantipur Dental College Teaching Hospital and Research Center, Basundhara, Kathmandu. The studied population belongs to dental students of Kantipur Dental College and Research Centre. The nasal parameters include nasal height, nasal width which was measured using Digital Vernier Caliper and the nose was classified in three different types based on the value of nasal index. RESULTS: The mean nasal index of total population was 81.34±14.88 mm with confidence interval range of 78.85 and 83.83 mm. Mesorrhine type of nose was found to be most common among the total population. Mean nasal index in male is 84.49±12.46 mm and in female is 80.66±15.32 mm. CONCLUSIONS: This study concludes that the mean values of nasal index of the students fall under mesorrhine type of nose.

Prevalence of Leptoprosopic type of Face among Dental Students.

INTRODUCTION: Facial index is useful for anatomists, forensic scientists and plastic surgeons during treatment of congenital and traumatic deformities, identification of individuals in medico-legal cases and identifying craniofacial deformities and they help us in distinguishing one person from another. Very few researchers from Nepal have worked on these facial features with respect to population and environment. The study aims to find the prevalence of leptoprosopic type of face among dental students of Kantipur Dental College, Kathmandu, Nepal. METHODS: The descriptive cross-sectional study was conducted among 173 dental students of age group 17-25 years in the Department of Anatomy, Kantipur Dental College Teaching Hospital and Research Center, Basundhara, Kathmandu from September to December 2018. Ethical clearance was obtained from Institutional Review Committee of the institution and convenience sampling was done. The facial parameters include facial height, facial width which was measured using Digital Vernier Caliper and Sliding Caliper respectively. The face was classified into three different types based on the value of facial index, according to Bannister Classification. Data was analyzed using SPSS 20. RESULTS: Prevalence of leptoprosopic type of face was 70 (40.46%) [40.39-40.53 at 95%CI]. Among these, 37 (21.39%) were males and 33 (19.07%) were females. Leptoprosopic was most common which was followed by hyperleptoprosopic in 64 (36.99%), mesoprosopic in 26 (15.03%), euryprosopic in 12 (6.94%) and hypereuryprosopic facial types in 1 (0.58%). All three facial parameters including facial height, facial width and facial index were greater in male than in female. CONCLUSIONS: This study concludes that the leptoprosopic face was most common followed by hyperleptoprosopic, mesoprosopic, europrosopic and hypereuroprosopic type of face.

Estimation of Body Height from Head Length among Dental Students of a Dental College.

INTRODUCTION: Body height is an important measure of physical identity. Height exhibits a dimensional relationship with various parts of the body. This relationship helps to calculate height from dismembered and mutilated body parts in forensic examinations. As the cranial dimensions are more reliable and precise means of predicting the stature, this study was undertaken to find the relation between head length and height and to derive a regression formula for the estimation of height from head length among dental students. METHODS: This descriptive cross-sectional study was conducted among 150 dental students of age group 18-21 years in the Department of Anatomy, Kantipur Dental College Teaching Hospital and Research Center, Basundhara, Kathmandu. The head length was measured with the help of spreading caliper. Height was measured with the help of a standard height measuring instrument. The head length and the height of the students were measured in centimeters. Data obtained were analyzed to find the correlation between head length and height and to derive a regression equation for the estimation of height. RESULTS: A significant positive correlation was observed between head length and height (r=0.734, P<0.001). The regression equation for body height and head length including both sexes and all age groups of dental students was found to be y=12.9+8.45x where x is head length and y is body height. CONCLUSIONS: It was observed in the present study that there was a significant positive correlation between height and head length in all the age groups indicating that head length is a reliable indicator in estimation of height.