METHODS: This study involved life-long residents aged 12 years-old in fluoridated and non-fluoridated areas in Malaysia (n=595). The survey was carried out in 16 public schools by a calibrated examiner, using ICDAS-II criteria. A questionnaire on socio-demographic and oral hygiene practices was self-administered by parents/guardians. Data were analysed using Mann-Whitney U tests and logistic regression.
RESULTS: The overall response rate was 74.4%. Caries prevalence at the dentine level or at the dentine and enamel level was significantly (p⟨0.001) higher among children in the non-fluoridated area (D₁₋₆MFT⟩0 = 82.4%, D₄₋₆MFT⟩0 = 53.5%) than in the fluoridated area (D₁₋₆MFT⟩0 = 68.7%, D₄₋₆MFT⟩0 = 25.5%). Considering only the decayed component of the index, no significant differences were observed between the two areas when the detection threshold was set at enamel caries (D₁₋₃) (p=0.506). However, when the detection criteria were elevated to the level of caries into dentine (D₄₋₆) there were clear differences between the fluoridated and non-fluoridated areas (p=0.006). Exposure to fluoridated water proved a significant predictor for lower caries prevalence in the statistical model. Children whose father and mother had a low monthly income had a significantly higher dentine caries prevalence.
CONCLUSION: Results confirmed existing evidence of the benefit of water fluoridation in caries prevention. Detection criteria set at caries into dentine shows clear differences between fluoridated and non-fluoridated areas. Exposure to fluoridated water and socio-economic status were associated with caries prevalence.
METHODS: A questionnaire survey was conducted to assess self-reported dental injuries and knowledge of their management. An intraoral examination was performed using the decayed, missing, and filled teeth (DMFT) index following the World Health Organization guidelines.
RESULTS: A total of 61 para-athletes (men = 90.16%, n = 55; women = 9.84%, n = 6) from different sports categories with different disabilities randomly participated in this study. The incidence of self-reported dental injuries was 18.0% (n = 11), with the most common injury being crown tooth fracture (72.7%) and lip laceration (63.6%). However, the majority of the athletes (70.5%, n = 43) did nothing after experiencing dental trauma, and 82.0% (n = 50) were unaware of the immediate management of dental trauma. Based on the intraoral examination, only 9.8% (n = 6) of the athletes had perfectly sound teeth. The mean total DMFT index was 3.49 ± 2.371, while the mean DMFT index for decayed, missing, and filled teeth was 1.28 ± 1.293, 0.74 ± 0.705, and 1.48 ± 1.120, respectively. The mean DMFT index for decayed, missing, and filled teeth and total DMFT index significantly differed among the types of disabilities (P .05).
CONCLUSION: The most commonly reported injuries among para-athletes are crown tooth fractures and lip lacerations. The total DMFT index among para-athletes is moderate, emphasising the need for improvements.