Level of Knowledge about “Spit don’t rinse” Brushing Technique and The Affective Factors among Dental Patients in Faculty of Medicine Vajira Hospital, Navamindradhiraj University
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Abstract
Objective: survey the level of knowledge about “spit don’t rinse” brushing technique and study factors
affecting the level of knowledge of “spit don’t rinse” brushing technique of dental patients in Faculty of
Medicine Vajira Hospital, Navamindradhiraj University.
Methods: The cross-sectional survey of 385 dental patients in Faculty of Medicine Vajira Hospital,
Navamindradhiraj. The level of knowledge of “spit don’t rinse” brushing technique and factors were collected
using an online questionnaire created by the researchers. Frequency, percentage, mean and standard deviation
were calculated and compared the level of knowledge about “spit don’t rinse” brushing technique among the
different groups by using Chi-squared test statistics. Multiple logistic regression analysis statistics were used
to analyze relationship between factors and the level of knowledge about “spit don’t rinse” brushing technique.
Results: Overall mean knowledge score of 5.3 ± 2.73. The results showed that 76.6% of dental patients had
low level of knowledge about “spit don’t rinse” brushing technique. Comparisons made between different sex,
age, education, occupation and the experience learning brushing technique “spit don’t rinse” were statistically
significant in level of knowledge. After the multiple logistic regression analysis, the following factors were
moderate/high level of knowledge about “spit don’t rinse” brushing technique: higher bachelor education level
(Adjusted OR = 8.87, 95%CI: 1.66 - 46.40, p-value = 0.011) and the experience learning about “spit don’t rinse”
brushing technique (Adjusted OR = 3.56, 95%CI: 1.22 - 10.37, p-value = 0.020).
Conclusion: The dental patients in Faculty of Medicine Vajira Hospital, Navamindradhiraj University
do not understand and follow the correct procedures of “spit don’t rinse” brushing technique. Dental
practitioners should be able to provide “spit don’t rinse” brushing technique knowledge effectively to
prevent dental caries and promote oral health, which will reduce the prevalence of dental caries in Bangkok.
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