Dental Caries Prevalence and Experience (ICDAS II Criteria) of 5-, 12- and 15-Year-Old Children and Adolescents with an Immigrant Background in Greece, Compared with the Host Population: A Cross-Sectional Study

Oral health inequalities in immigrant populations worldwide: a scoping review of dental caries and periodontal disease prevalence

BACKGROUND

Inequalities in immigrants' oral health are often masked in population-level data. Therefore, this paper was planned to assess the prevalence data on oral health diseases, namely dental caries, and periodontitis, among immigrants worldwide.

METHODS

Following a systematic search in Scopus, Embase, and PubMed for studies published between 2011 and 2023, 1342 records were identified. Following title and abstract screening, 76 studies remained for full-text eligibility-screening based on predefined inclusion criteria. Thirty-two studies were included in the review.

RESULTS

Dental caries figures were higher in immigrant populations compared to the local population, regardless of host countries, age, gender, or nationality. In children, the overall mean and standard deviation (SD) for decayed, missing, and filled teeth in the primary dentition (d3mft) was 3.63(2.47), and for D3MFT (permanent dentition), it was 1.7(1.2). Upon comparing overall mean caries counts in children and adults with their control groups in the included studies, untreated dental caries (D3T and d3t) constituted the dominant share of caries experience (D3MFT and d3mft) in immigrant children. For the local population, the highest proportion of caries experience was attributed to filled teeth (FT and ft). Dentin caries prevalence among immigrants ranged from 22% to 88.7% in the primary dentition and 5.6% to 90.9% in the permanent dentition. Gingivitis ranged from 5.1% to 100%. Oral health varied greatly between studies. Regarding oral health accessibility, 52% to 88% of immigrant children had never been to a dentist, suggesting a very limited level of accessibility to dental health services.

CONCLUSION

It is imperative to develop interventions and policies that have been customized to address the oral health disparities experienced by immigrant populations. Additionally, host countries should actively implement measures aimed at enhancing the accessibility of oral health care services for these individuals. The utilization of available data is crucial in establishing a hierarchy of objectives aimed at enhancing the oral health of immigrant populations.

TRIAL REGISTRATION

The Scoping review protocol was registered at OSF Registries with registration number ( https://doi.org/10.17605/OSF.IO/MYXS4 ).

Impact of the COVID-19 lockdown on the oral health status of paediatric dental patients in Greece

BACKGROUND

Limited evidence regarding the post-COVID-19 dental status of paediatric patients is available, with most studies assessing only children's oral health habits.

AIM

To evaluate the effect of the COVID-19 lockdown on the oral health of paediatric dental patients in Greece.

DESIGN

This was a retrospective cohort study that included a questionnaire on children's oral health behavior and a clinical examination assessing dental caries and dental treatment needs using the International Caries Detection and Assessment System criteria, dmft/DMFT, and Treatment Need Index. The Wilcoxon signed-rank test was used for a statistical comparison between questionnaire and clinical data before, during, and after the lockdown.

RESULTS

A total of 102 children with a median age of 9 years were recruited from the current cohort of patients that had their last dental examination 6 months prior to the lockdown. Results from the questionnaire showed decreased brushing frequency with increased eating frequency and sugar consumption during the lockdown period (p < .001). Moreover, 16.5% had to visit the dentist for urgent care during the lockdown, 13.6% experienced dental pain, and 51.5% did not experience any dental emergencies. Clinical examination, after the lockdown, recorded significantly increased mean dmft/DMFT scores by 0.63 units in the primary dentition (p = .01) and 0.52 units in the permanent teeth (p = .002). Significantly higher treatment needs, with more carious lesions requiring extensive treatment after the lockdown, were recorded (p < .001).

CONCLUSION

The COVID-19 lockdown negatively affected children's oral health behavior: caries prevalence increased and more complex dental treatments were required.

What Do Mothers (or Caregivers) Know about Their Children’s Oral Hygiene? An Update of the Current Evidence

Tooth decay remains one of the most common diseases in children, although it is a preventable injury and despite significant advances that has been made in terms of attention and care for oral hygiene. Several studies have shown the association between prevalence of tooth decay in children and parents’ incorrect oral care habits, with a low educational level and a low socioeconomic background. The question that arises concerns the actual oral hygiene knowledge of mothers, fathers, family members or caregivers of young patients; therefore, the aim of this review is to investigate the genesis of gaps in the topic. A literature search was conducted through the Scopus and PubMed search engine and ended in May 2022; only studies from the past 20 years were included. Current evidence suggests that parents and caregivers still have little knowledge about their children’s oral health: there is not enough awareness about the importance of preventing oral diseases, due to poor attention to good oral hygiene but also lack of information from health professionals and institutions. In the future, all the professionals involved in the pregnant woman’s care should increase parents’ knowledge, solve their doubts, collect and compare data in order to design effective intervention programs.

Caries prevalence of the first permanent molar and associated factors among second-grade students in Xiangyun of Yunnan, China: A cross-sectional study

PURPOSE

This study aimed to explore the caries prevalence of the first permanent molar (FPM) and the associated factors among second-grade students in Xiangyun of Yunnan, China.

MATERIALS AND METHODS

A cross-sectional survey was conducted in Xiangcheng Town, Xiangyun County, China, from September to November 2020. The methodology recommended by WHO was used for the dental examination. All the parents were required to complete a questionnaire to collect information on children's family background, dietary habits, oral health behaviors and parental oral health-related knowledge. The tests of significance used were the chi-square test. The association between dental caries prevalence and its associated factors was investigated using logistic regression analysis. Statistical significance was set at P < 0.05.

RESULTS

Data of 1,295 second graders consisting of 665 males and 630 females were analyzed. The caries prevalence of FPM was 47.6%, and the mean DMFT was 1.11 ± 1.394 in this sample. Among all the children with caries, the filling rate is meager, 2.6%. There were statistically significant differences in the caries prevalence of FPM among age groups. No significant difference existed between the sexes. Logistic regression analysis showed that the most significantly associated factors were: consuming desserts at least once a day, no fluoride varnish application experience, worse parental perception of children's oral health status, and incorrect parental knowledge of whether decayed primary teeth need treatment.

CONCLUSION

Caries prevalence of FPM among second-grade schoolchildren in Xiangyun was considerably higher than the average prevalence nationwide in China. As China aims to reduce dental caries to <25% of 12-year-old children in 2030, the local government of remote regions like Xiangyun needs to do much more to achieve this goal. Results of this study could provide a framework for ongoing and future public oral health programs and policy planning in Xiangyun, with particular attention to early preventive and therapeutic measures.