ABSTRACT
Objective@# To explore the trajectory of the development of permanent caries in 12- to 16-year-old students in Liuyang and to provide a reference for the prevention and management of caries.@*Methods@#Primary and secondary school students who were registered within the Liuyang jurisdiction were screened for caries from September to November by the Liuyang Center for Disease Control and Prevention. A total of 7 297 students between the ages of 12 and 16 years with complete permanent dentition caries monitoring records and traceable deciduous dentition caries monitoring records were selected from 2013 to 2019, and a zero-inflated negative binomial-latent class growth model (ZINB-LCGM) was established to describe the trajectory of the development of individual caries using the decayed missing filled teeth (DMFT) indicators. @*Results@# DMFT of 12- to 16-year-old students in Liuyang were mainly decayed teeth (DT), with the majority occurring in the first permanent molar. According to the ZINB-LCGM model, the students were classified into three latent categories, "slow growth pattern" (28.55%), "rapid growth pattern" (6.59%), and "stable pattern" (64.86%), which followed different nonlinear caries growth trajectories. Females with deciduous teeth caries were more likely to have trajectories showing a “rapid growth pattern” and a “slow growth pattern”. There were significant differences in the trajectories between men and women, as well as between those with and without primary dentition caries. @*Conclusion @# The trajectory of the development of caries in 12-16-year-old students shows heterogeneity in terms of different developmental patterns of latent categories, suggesting that females with deciduous dental caries should receive more attention.
ABSTRACT
Objective·To compare the caries prevalence, unmet restoration needs and sealant prevalence between Shanghai 12-year-old native and migrant students from 2013 to 2015. Methods·From 2013 to 2015, a random cluster sample of 12-year-old native and migrant students was selected from each district in Shanghai. World Health Organization (WHO) indices were used to assess decayed-missing-filled teeth of permanent dentition (DMFT). The prevalence of caries and sealants, caries filling rate, unmet dental restoration needs and the value of DMFT were analyzed using the Mann-Whitney U test and chi-squared test. Results·A total of 2500 students were examined from 2013 to 2015, among which 36.8％ were migrants. There was no significant difference in caries prevalence and DMFT value between native and migrant students from 2013 to 2015. Sealant prevalence of migrants was significantly lower than that of natives in 2013 (0.8％ vs 6.6％) and 2015 (3.0％ vs 9.9％). Unmet restoration needs of migrants were significantly higher than those of natives in 2015 (60.5％ vs 46.4％). Conclusion·There was no significant difference in caries prevalence between 12-year-old native and migrant students in Shanghai from 2013 to 2015. But there were lower sealants and higher unmet restoration needs in 12-year-old migrant students than their native counterparts, even though free public dental health services were available to both groups.
ABSTRACT
Background: Oral health is an integral part of general health and psychiatric disorders lead them to change their life style and lose concern for general and oral health. In view of this, the study was planned to compare the oral health status in different types of in-patient psychiatric patients. Objective of current study was to study the oral health status in schizophrenia and bipolar affective disorders institutionalized in psychiatric hospital. Methods: 50 Psychiatric patient (43 patients suffering from schizophrenia, 7 patients of bipolar affective disorder,) and 50 unrelated healthy volunteers were taken in the study. Dental examinations were done in both groups to measure the following indices of oral health: decayed, missing, and filled teeth index (DMFT) for caries; simplified oral hygiene index (OHI-S) for oral hygiene status; and tooth wear index for the wear of teeth. For comparison analyses t test was used. Results: Mean age of the study group was 37.74 years. Mean decayed missing filled teeth index (DMFT) score for study group and control population was 8.52 ± 4.36 vs. 4.72 ± 2.74 vs. 1.81 ± 1.00 (P ≤0.0001). The mean simplified oral hygiene index (OHI-S) for study group was 3.87±1.21, while that of control was (p≤0.0001).The mean Tooth wear index (TWI) score for study group was found to be 1.62 ± 0.75 and for control group was 1.08±0.48 (P ≤0.0001). Conclusion: Oral health status is affected in psychiatric patients and improving the oral health in psychiatric patients can go long way in improving the quality and management of these patients.
ABSTRACT
There are many factors that cause caries. This cross sectional study is to describe the relationship of oral hygience, dietary intake with caries experience among UKM students. A total of 93 subjects (19 - 24 years old) participated in the study. A food record for 3 days was used to assess fluoride ingestion from diet. Fluoride Ion Selective Electrode was used to analyse fluoride content in foods and beverages consumed. Foods frequency questionaires (ffq) were used to assess frequency of sugary foods intake and calcium ingestion. Oral health questionaire was used to assess the oral hygience status. DMFT (Decayed, Missing, Filled teeth) index was used to describe the rate and accumulation of caries in permanent teeth. Results showed only 20.4% of subjects were caries free. The mean DMFT score was 3.80. The mean score for filled component was the highest (1.88), followed by decayed component (1.64) and missing component (0.27). The mean of fluoride and calcium ingestion per day were 2.13± + 0.96 mg and 454.79 + 208.9 mg respectively. Mean daily frequency of sugary food comsumption was 2 times. The range of fluoride content in foods and beverages were 0.04 to 25.64 ppm and 0.03 to 0.72 ppm respectively. There were no significant relationship between fluoride, calcium ingestion and frequency of sugary foods intake with caries experience. There was a statistically significant relationship between oral hygience practices and caries experience. (p < 0.05).