Effects of Face Masks on Pulse Rate and Blood Pressure Components During Stairs Climbing.

BACKGROUND: The use of face masks has been associated with physiological changes in body. This study aims to know the changes in pulse rate and blood pressure components after wearing face masks during stairs climbing. METHODS: An experimental study was conducted among 60 apparently healthy young adults between 18-35 years of age. The pulse rate and blood pressure of the participants were recorded during rest at ground floor and after climbing the stairs till 5th floor at brisk and regular pace without wearing the face masks. The uniform KN95 masks were distributed and proper coverage of nose, mouth and chin were ensured. After 5 minutes interval, the pulse rate and blood pressure were recorded again at rest in ground floor and after climbing stairs with use of KN95 masks. RESULTS: At rest, the difference in mean pulse rate was statistically significant after wearing masks in participants between 21-25 years of age (86.46±14.59 bpm, p=0.014). After climbing the stairs, the mean pulse rate (131.16±18.48 bpm), mean systolic blood pressure (137.67±16.13 mmHg) and mean rate pressure product (182.87±41.70) were higher in participants (age group: 26-30 years) wearing masks and the difference was statistically significant (p=0.001; 0.013; 0.001respectively). During stairs climbing, the change in mean systolic blood pressure (32.66±16.73 mmHg), mean pulse pressure (43.77±24.64 mmHg) and mean rate pressure product (96.58±37.23) were higher in participants (age group: 26-30 years) and the difference was statistically significant (p=0.036; 0.047 and 0.009 respectively). CONCLUSIONS: The changes in systolic blood pressure, pulse pressure and rate pressure product are found to increase after wearing face masks during stairs climbing. It can be suggestive of increase workload to the heart by wearing face masks in addition to climbing the stairs.

Assessment of Palatal Plane and Occlusal Plane for Determining Anteroposterior Jaw Relation.

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.

Substance Abuse among Students in a Dental School.

INTRODUCTION: Substance abuse has become a burning issue among the medical and dental students. Dental students, who later transform into dentists, have a significant role in substance abuse cessation. Thus the study was undertaken to quantify substance abuse among dental students of Kantipur Dental College. METHODS: A descriptive cross-sectional study was conducted using pretested self-administered questionnaire among undergraduate and post graduate students of Kantipur Dental College. Convenience sampling was done and sample size was calculated. RESULTS: Study revealed 166 (74.10%) as never smokers, 3 (1.30%) as former smokers and 55 (24.60%) as current smokers. Similarly 97 (43.3%) students never used alcoholic drink, 95 (42.41%) consumed alcohol monthly, 29 (12.95%) consumed alcohol 2-4 times a month and 3 (1.34%) consumed alcohol 2-3 times a week. A total of 78 (35%) students used cannabis. CONCLUSIONS: Substantial numbers of students were indulged in deleterious habits of smoking, tobacco and cannabis intake. Students need to be properly counselled to discourage substance abuse and create a healthy society.

Dentists in Nepal: A Situation Analysis.

BACKGROUND: Human resource data is essential for planning and implementation of health care delivery system. However, very few information is available on dental health human resource in the country. The aim of study was to assess the number of dentists in the country and to explore their distribution according to demographic and professional characteristics. METHODS: A census was performed during July 2015 to July 2016 about the Nepali dentists. The study assessed demographic and professional characteristics of dentists including age, gender, ethnicity, education attainment, university, country/year of graduation, and work place using data collection sheet by trained data collectors. For those not accessible for direct contact, the information was obtained through secondary data. Data entry was done in CSPro software application and was analyzed in SPSS 20. RESULTS: The total number of registered Nepali dentists was 1803 with 419 specialists until June 2015. The male to female ratio was 1:1.46. Among all; 1318 (73%) were present in the country, 1047 (58%) were professionally active, and 1366 (76%) were below the age of 35 years. Among the professionals; 831 (79%) were employed in private sector and 601 (57%) worked in Kathmandu valley. CONCLUSIONS: The dentist-population ratio is decreasing exponentially in capital and major cities of Nepal however it remains very high in rural areas. Compared to other provinces,Province 6 and Province 7 lack service of dentists.