Abstract:
Background: Dental fluorosis (DF) is a condition that causes discolorations in the teeth enamel
seen in some areas in Sri Lanka. DF is characterized as an abnormality in the formation of the
enamel structure due to over-exposure to high quantities of fluoride.
Objectives: To assess the knowledge level of DF and associated factors among school children in
Dimbulagala Educational Zone
Methods: A total of 273 children (12-14 years) were enrolled from three randomly selected
schools in Dimbulagala Zone. A descriptive cross-sectional study was conducted using a self
administered pre-tested questionnaire. The knowledge level on DF was measured using 11
questions regarding the causes, signs, treatments, and preventive methods of the condition. Data
were analyzed using SPSS version 25.0 and Chi-square test was used to find the associations.
Results: The majority (53.48%, n=146) were female and most of the children (97.8%, n=267)
lived in rural areas. The majority (96%), n=262) had inadequate knowledge and only 4% (n=11)
had moderately adequate knowledge about DF. Out of all, 67.4% (n=184) were not aware of DF
and 77.3% (n=211) were not aware that DF has no cure. Majority of them (56.4%, n=154) were
not aware that water source could cause DF. There was a statistically significant association
between living area (p=0.001) and knowledge level. There was no association between knowledge
level about DF and grade (p=0.294), school (p=0.515), division (p=515), parents’ occupation
(p=0.886), monthly income (p=0.643) and gender (p=0.643). The knowledge on DF was
comparatively higher among students in urban areas compared to those in rural areas.
Conclusion: The majority of students had inadequate knowledge about DF. Therefore, it is
important to initiate awareness programs to enhance children’s knowledge on DF.
