The objective of this study is to compare knowledge attitude and practice of hand hygiene including alcohol
hand rub use among dentist groups who had different number of years in current practice by gathering the data
from 149 returned questionnaires. In each category, the average scores were compared among 3 groups of dentistswho had been in practice for 0-10 years, 11-20 years and 21-30 years. The results were found that no statistical
significant differences in the average total scores among groups in knowledge attitude and practice category (p<0.05).
However, the 21-30-year group had significantly lower average score than the 11-20-year group in hand hygiene
practice category (p<0.05) and the 0-10 year group had significantly lower average score than other groups in alcohol
hand rub attitude category (p<0.05). In summary, number of years in practice has no significant effect on average
total scores among groups in knowledge attitude and practice category. However, dentist who has been working
for longer time tends to achieve less score in hand hygiene practice while dentist who has been working for shorter
time tends to achieve less score in alcohol hand rub attitude.