Introduction: Sagittal jaw relationship is an important parameter for orthodontic treatment planning. Angular and linear measurements both have been proposed and used in orthodontic cephalometrics to assess the sagittal jaw relationships. However, angular measurement has been questioned over the years for its reliability as a result of changes in facial height, jaw inclination and the variable positions of Nasion. So, the objective of our study was to assess the linear anteroposterior jaw relation in a sample of Nepali population using occlusal (Wits appraisal) and palatal planes as reference lines.Methods: A descriptive cross-sectional study was conducted using the lateral cephalogram of 101 individuals visiting the Department of Orthodontics, Kantipur Dental College, Kathmandu, Nepal. Individuals with Class I skeletal relation were selected using convenience sampling method. Radiographs were standardised and traced. Occlusal and palatal planes were drawn that were bisected by the perpendicular lines from Point A and Point B. The linear distances between the intersections were measured to determine sagittal jaw relations.Results: In Nepali individuals with normal ANB angle (3.05°±2.511°), the sagittal jaw relation with reference to occlusal (Wits appraisal) and palatal planes were found to be 0.203±3.343mm and 3.574±4.074mm respectively.Conclusions: Various methods has been proposed and used to assess the sagittal jaw relation and each method has its own strength and limitations. So, it is well advised to use additional cephalometric analysis whenever possible before arriving at any diagnosis and treatment plans. Keywords: ANB angle; Nepal; palatal plane; Wits appraisal.

Introduction: Periodontitis is chronic disease leading to tooth loss. Oral hygiene practices combined with regular dental examinations keep oral cavity disease free and maintain periodontal health. The primary objective was to find out the prevalence of periodontal disease of patients measured by the Simplified Oral Hygiene Index and Community Periodontal Index. Methods: This descriptive cross-sectional study was conducted in department of Periodontics of a tertiary care dental hospital from April to June 2019 after obtaining ethical clearance and informed consent. Participants were recruited by convenience sampling and 183 sample size was calculated. Proforma included demographics, Simplified Oral Hygiene Index, Community Periodontal Index, body mass index, and smoking status. Data were entered in Statistical Package for Social Sciences version 23 and descriptive statistics were presented as frequency, percentage, mean, and standard deviation. Results: Prevalence of periodontal disease corresponding to loss of attachment 1, 2, 3, and 4 was found to in 104 (56.83%) participants. Simplified Oral Hygiene Index score was 1.67±0.89 with “fair” status in majority 114 (62.30%). Gingivitis (Community Periodontal Index 1, 2) was seen in 136 (74.32%). The mean age was 36.37±14.43 years of which 92 (50.27%) were female but smoking was more in males. Conclusions: This study suggests deteriorating periodontal health related to age, sex, oral hygiene, smoking, and BMI. As updated information on oral and periodontal health in Nepal is limited, this assessment would help the national policy makers on oral health intervention measures to prevent periodontitis and develop future programs to improve oral health.

Introduction: The American Board of Orthodontics objectively quantifies the complexity of malocclusion before orthodontic treatment. This study aims to assess the complexity of cases as measured by ABO discrepancy index (DI) in the patients under treatment by the orthodontics residents of Kantipur Dental College (KDC). Additional objectives were to 1) Ascertain DI relative to sex, age and race/ethnicity, and 2) Differential analysis of the components of the DI. Materials & Method: DI was determined for 220 consecutive cases started by orthodontic residents of KDC in a three-year graduate orthodontics program from 2014-2018. The DI was scored and compared with the patient’s sex and age. Result: The DI is not statistically significant to age, sex and race/ ethnicity. The mean DI score (± SD) was 18.65 (±10.521). Differential analysis of the components of the DI showed that the highest scores were for cephalometric measures, followed by overjet, crowding, occlusion, and the lowest scores were for lingual posterior crossbite. Conclusion: The DI was a relatively reliable index for measuring malocclusion severity. It is independent of patient’s age and race/ethnicity but is dependent on sex. Area of possible future improvements includes malocclusion sub-categories (Class II div. 1 and 2), and scores for bony and soft tissue impactions.