History of dental caries in Inuit populations: genetic implications and 'distance effect'

Dental caries is considered the third most important scourge in the world. In North America, Inuit populations are the population the most severely affected by dental caries. It is often assumed that this situation can be explained by a combination of factors classical for Indigenous populations: remoteness (geographical distance), low economic status and low health literacy (cultural distance). Using a bibliographic approach, we tested this hypothesis of the "distance effect" by exploring the caries prevalence in other Indigenous populations living in high-income countries. Next, we tested whether the high prevalence of caries is due to population-specific characteristics by tracking caries prevalence over the past few centuries. In result, we showed that while other Indigenous populations are more impacted by caries than the general populations, the Inuit populations present the highest prevalence. Paradoxically, we showed also that past Inuit populations were almost immune to caries before 1950. These two elements suggest that the prevalence of caries observed presently is a recent maladaptation and that beyond the effect of cultural and geographical distance, specific biocultural factors have to be investigated.

Is caries prevalence site-specific in cleft lip and palate patients? A systematic review and meta-analysis

Background

Previous systematic reviews indicate that there is an increased prevalence of caries in cleft patients in comparison to their healthy control group. To date, the prevalence of caries between unilateral cleft lip and palate (UCLP) and bilateral cleft lip and palate (BCLP) has not been quantitatively evaluated. This review aims to include published studies that examined caries prevalence in patients with UCLP and BCLP to find out whether a quantitative difference exists in caries experience among them.

Materials and Methods

Medline/PubMed, Scopus, and EBSCOhost databases were searched from inception to November 2021. The protocol was registered with PROSPERO registration no. CRD2021292425. Prevalence-based studies that evaluated caries experience using the decayed-missing-filled teeth (DMFT) index in the permanent dentition or dmft in case of primary dentition in patients with UCLP or BCLP were included in the analysis with the outcome given in mean and standard deviation. Meta-analysis was performed using a random effect model through a forest plot. An adapted version of the Newcastle-Ottawa Scale for cross-sectional studies was modified to assess the quality of included studies.

Results

Three studies were included in the review. The difference in caries prevalence was statistically significant in the permanent and primary dentition which were evaluated using DMFT and dmft scores with P = 0.01 and P = 0.03, respectively. Forest plot values were obtained for permanent dentition (DMFT) and primary dentition (dmft), 0.57 (95% confidence interval [CI]: 1.03-0.11) and 0.36 (95% CI: 0.69-0.03), respectively. The result of the meta-analysis indicates that patients with BCLP have higher caries prevalence.

Conclusion

The outcome of the study indicates a higher occurrence of caries in patients with BCLP than UCLP in both permanent and primary dentition.

Carious status and socio-behavioral risk factors among 12 year-old children in South-Central region in Romania

BACKGROUND

Regular screenings at children population level are necessary in order to assess communities' need for education, prevention, as well as early detection and intervention programs The study aims to assess dental caries experience and oral health-related behaviors among Romania children from the South and Central region.

METHODS

The cross-sectional study conducted in 2019-2020 is part of the national survey "Romanian Oral Health Survey", under the endorsement of the World Health Organization (WHO). The stratified, randomized and representative sample included 98 children of 12 years of age. The assessment included a clinical examination, using International Caries Detection and Assessment System (ICDAS) and the Oral Health Questionnaire for Children recommended by the World Health Organization.

RESULTS

Results revealed that the frequency of caries-free children among 12 year-olds was 36.7% and the mean DMFT was 2.89. Regarding the oral health-related habits, 38.8% of children brushed twice daily; the consumption of sugary foods multiple times per day has been frequently met and 11.2% at the age of 12 never visited the dental office.

CONCLUSIONS

The findings revealed that caries prevalence was high and behaviors negatively influence oral health. The presented data are of utmost importance for Romanian policy makers to promote oral health education among children, to support consistent preventive oral health campaigns and to stimulate dental attendance, irrespective of children' living areas or gender.

Comparative evaluation of caries prevalence among group of Egyptian adolescents using DMFS and ICDASII methods: a cross-sectional study

BACKGROUND

Limited data is available regarding the prevalence of dental caries as a chronic disease among adolescents using different caries assessment indices. The aim of this study was to compare and describe the prevalence of dental caries among group of Egyptian students using two caries assessment indices; DMFS and ICDAS II.

METHODS

This descriptive, cross-sectional epidemiological study included 2760 public secondary school students with age range from 15 to 18 years with permanent dentition and good general health. Presence of; retained teeth, congenital or developmental anomalies in the permanent dentition, orthodontic treatments, systematic conditions, smoking and general health problems were considered the exclusion criteria in this study. Participants were selected randomly from 8 public secondary schools in the Great Cairo, Egypt. The examination was achieved by 6 trained and previously calibrated examiners using sets of diagnostic mirrors, compressed air, a WHO probe and cotton rolls. DMFS index and ICDAS II system were used as caries detection methods. In DMFS index; the number of decayed (D), missing (M) and filled (F) surfaces was recorded, while in the ICDAS II index, the assessment of both cavitated and non-cavitated carious, missed and filled teeth with restorations /sealants was recorded. The examiners performed the oral examination using both scoring systems in an alternating manner. The collected data were explored for normality using Kolmogorov-Smirnov and Shapiro-Wilk tests. Chi square test was used to analyze the frequencies.

RESULTS

There was a statistical significant difference between the DMFS and ICDAS II methods results regarding the recorded number of caries affected teeth and cavitated teeth surfaces. The prevalence of dental caries among the investigated secondary school students was (69.56%) and (78.29%) for DMFS and ICDAS II, respectively.

CONCLUSIONS

The prevalence of dental caries among Egyptian adolescent is high. ICDAS scoring system revealed higher caries prevalence values than DMFS method. ICDAS method is the best choice for the preventive goals, while DMFS is sufficient for clinical purposes.

Associations of PART1 and DEFB1 polymorphisms with Dental Caries in twelve-year-old children in Southern China: a cross-sectional study

OBJECTIVE

The aim of this study was to assess associations of PART1 rs27565 and DEFB1 rs11362 polymorphisms with the prevalence of dental caries in twelve-year-old children in Nandan County, Guangxi, China.

METHODS

A total of 1,061 children were included in this cross-sectional study and divided into two groups based on the Decayed, Missing and Filled teeth (DMFT) index: caries-free children (DMFT score = 0) and children with caries (DMFT score ≥ 1). Demographic characteristics, oral hygiene behaviour and dietary habits were collected through household records and questionnaires. Genomic DNA was extracted from buccal cells, and PART1 rs27565 and DEFB1 rs11362 polymorphisms were genotyped using a custom-designed 48-Plex single nucleotide polymorphism-scan kit.

RESULTS

Carriers of the PART1 rs27565 C allele (odds ratio [OR] = 1.338, 95% confidence interval (CI) = 1.015-1.764, P value = 0.039) and carriers of the DEFB1 rs11362 T allele (OR = 1.364, 95% CI = 1.056-1.762, P value = 0.017) had a higher risk of caries. Carriers of the PART1 rs27565 TC or CC genotype who ate sugary food more than once a week had a 1.6-fold higher risk of caries than TT carriers who ate sugary food at most once a week (OR = 1.579, 95% CI = 1.032-2.414, P value = 0.035). Carriers of the DEFB1 rs11362 CT or TT genotype who ate sugary food more than once a week had a 2.1-fold higher risk of caries than CC carriers who ate sugary food at most once a week (OR = 2.057, 95% CI = 1.438-2.940, P value < 0.001).

CONCLUSION

PART1 rs27565 and DEFB1 rs11362 polymorphisms were associated with caries in 12-year-old children in Nandan County, Guangxi, China. Carriers of the PART1 rs27565 TC or CC genotype and the DEFB1 rs11362 CT or TT genotype who ate sugary food more than once a week had a high probability of having caries.

Dental caries at enamel and dentine level among European adolescents - a systematic review and meta-analysis

BACKGROUND

In contrast with the last century, caries epidemiology has begun integrating enamel caries into determinations of caries prevalence and experience. The objective of the present systematic review and meta-analysis was to assess the caries status including estimations of enamel caries, of European adolescents.

METHOD

Four databases (Medline Ovid, Embase, CINAHL, and SweMed+) were systematically searched from 1 January 2000 through 20 September 2021 for peer-reviewed publications on caries prevalence and caries experience in 12-19-year-olds; that also included evaluations of enamel lesions. Summary estimates were calculated using random effect model.

RESULTS

Overall, 30 publications were selected for the systematic review covering 25 observational studies. Not all studies could be used in the meta-analyses. Caries prevalence was 77% (n = 22 studies). Highest prevalence was reported in the age groups 16-19 years, and in studies where caries examinations were done before 2010. The overall mean DMFT score was 5.93 (n = 14 studies) and it was significantly lower among Scandinavian adolescents than among other European adolescents (4.43 vs. 8.89). The proportion of enamel caries (n = 7 studies) was 50%, and highest in the lowest age group (12-15 years). Results from the present systematic review reflected the caries distribution to be skewed at individual-, tooth- and surface levels; at tooth and surface level, also changed according to age.

CONCLUSIONS

Although studies in which the caries examinations had been done in 2010 or later documented a reduction in caries prevalence, caries during adolescence still constitutes a burden. Thus, the potential for preventing development of more severe caries lesions, as seen in the substantial volume of enamel caries during early adolescence, should be fully exploited. For this to happen, enamel caries should be a part of epidemiological reporting in national registers.

Prevalence of dental caries in the permanent dentition amongst 12-year-olds in Africa: a systematic review and meta-analysis

BACKGROUND

Dental caries (DC) is highly prevalent condition affecting mostly young children. There has been no systematic review done on the prevalence of DC amongst 12-year -olds in Africa. Although some African countries have reported a decrease in DC prevalence, others have shown an increase and it is essential to measure current trends in order to identify strategies and programmes that could assist in reducing DC in Africa. The aim of this systematic review was to determine the prevalence of DC (condition) amongst the permanent dentition of 12-year-old children (population) in Africa (context).

METHODS

A systematic review and meta-analysis was performed. Peer reviewed cross-sectional articles from January 2000 until December 2021 was searched and this included the following databases: Pubmed (Medline); SCOPUS; CINAHL (via EBSCOhost); Academic Search Complete (via EBSCOhost); Dentistry and Oral Sciences Sources (via EBSCOhost); and Science Direct. The search was last updated on the 10th January 2022. Joanna Briggs Institute critical appraisal tools were used to assess risk of bias. Prevalence figures were stratified by Urban/Rural status, country and time using a random-effects model. All studies performed on children 12-year-olds on the African continent were included. The prevalence of DC and the DMFT scores were the primary and secondary outcome measures, respectively. Only articles consisting of 12-year-old children who reside in Africa were included in this study. The systematic review was registered with Prospero CRD42021293666.

RESULTS

18,080 participants were included in this review. A total of thirty studies were included in the review. The pooled effect size of dental caries severity was 1.09 (CI 0.91-1.27) and the overall prevalence was 36% (CI 29.4-41.7%). Eritrea (78%) had the highest prevalence of DC while Zambia had the lowest (11%); Eritrea also had the highest DMFT score (2.5) with Sudan having the lowest score (0.49). Urban cities had the highest DMFT score (1.32, CI 0.97-1.68), compared to rural cities (1.13, CI 0.86-1.4) and there was an increasing trend in DC prevalence over time from 28% (CI 23-34%) in 2000 to 2005 to 57% (CI 43-72%) in studies conducted after 2015. The risk of bias was very low where majority of the studies scored more than 50% in the JBI critical appraisal tool.

CONCLUSIONS

There was a wide discrepancy in the DC prevalence and scores across the different countries, settings (rural versus urban) and there was an increase in the prevalence over time. This review was self-funded.

[Oral health in persons with disability in Germany-an overview of the literature]

Zur Frage der Mundgesundheit bei Menschen mit Behinderung in Deutschland wurde die letzte Übersichtsarbeit im Jahr 2012 veröffentlicht. Dafür konnten lediglich 3 Feldstudien zur Kariesprävalenz bei Kindern, Jugendlichen oder Erwachsenen mit Behinderung identifiziert werden, die zwischen den Jahren 2000 und 2012 publiziert worden waren. Das Ziel der vorliegenden Übersichtsarbeit ist es, einen Überblick zum aktuellen Stand der Daten zur Mundgesundheit bei Menschen mit Behinderung in Deutschland zu geben und auf die Konsequenzen aufmerksam zu machen, die sich daraus ergeben. Es wurden sämtliche Publikationen und Abstracts eingeschlossen, die zwischen dem 01.01.2000 und dem 31.01.2021 publiziert bzw. zur Publikation angenommen worden waren.

In Deutschland wurden im eingeschlossenen Zeitraum 6 regionale Studien und 1 überregionale Studie bei Kindern und Jugendlichen mit Behinderung sowie 3 regionale Studien und 1 überregionale Studie bei Erwachsenen mit Behinderung in 4 Bundesländern durchgeführt. Darin wurde die Karieserfahrung mithilfe des dmft- bzw. DMFT-Index bestimmt. Es zeigte sich, dass Kinder mit Behinderung im Grundschulalter im Mittel eine deutlich höhere Karieserfahrung hatten als Kinder ohne Behinderung. Im Jugendalter trifft dies nur für Personen mit geistiger Behinderung zu. Bei Erwachsenen mit geistiger Behinderung wirkte sich die höhere Karieserfahrung so aus, dass insgesamt mehr Zähne extrahiert wurden als in der Allgemeinbevölkerung.

Daraus wird die Schlussfolgerung gezogen, dass die zahnärztliche und präventive Betreuung von Personen mit Behinderung weiter intensiviert werden muss. Dies kann u. a. durch die Berücksichtigung der zahnmedizinischen Versorgung von Menschen mit Behinderung in der Approbationsordnung Zahnmedizin und in den Curricula für das Fach Zahnmedizin an den einzelnen Universitätsstandorten erreicht werden.

Caries Prevalence and Severity for 12-Year-Old Children in Latvia

Objectives

To study caries prevalence/severity in 12-year-old children in Latvia and potential risk indicators.

Methods

A cross-sectional oral-health national survey of 12-year-old children was conducted in 2016. A nationally representative stratified-cluster probabilistic sample of 2,138 pupils in 92 schools was selected. Children were examined by seven calibrated examiners (kappa inter-examiner, intra-examiner scores of 0.71–0.77, 0.81–0.97, respectively) at school. Enamel-non-cavitated decay (D₁), enamel cavitation (D₃), dentine cavitation (D₅), missing (M) or filled (F) status at the tooth (T)/surface (S) levels were evaluated, and decayed, missing, and filled (DMF) index scores for severity, along with the Significant Caries Index (SiC), were calculated. An associated caries factor questionnaire was completed by participants.

Results

The prevalence of caries was 98.5% for D₁MFT, 79.7% for D₃MFT, and 71.9% for D₅MFT. The means (standard deviations) for severity were 9.2 (5.3) for D₁MFT, 3.3 (3.0) for D₃MFT, and 2.4 (2.4) for D₅MFT, and 5.6 (2.1) for the SiC. Indicators associated with a lower risk of caries (D5MFT) were irregular dental visits (prevalence odds ratio POR = 0.45, 95% confidence interval (CI): 0.36, 0.56) and irregular use of mouthwashes (POR = 0.73, 95% CI: 0.60, 0.89).

Conclusions

We found a high caries prevalence and severity in 12 year-old children in Latvia. Although the WHO target for 2010 (D₅MFT ≤ 3) is met, the values for caries prevalence (D₅MFT > 0 = 71.9%) and severity (D₅MFT = 2.5) in 12-year-old Latvian children are higher than the European averages (D₅MFT > 0 = 52%, D₅MFT = 1.1).

Trends at the national level in a period of a decade

PURPOSE

To study the caries status of 5, 12 and 15-year-old Greek children, assess how disease parameters are related to socio-demographic indicators and identify relevant trends at the national level.

METHODS

A stratified cluster sample of 3702 children in total was randomly selected and examined clinically for caries (ICDAS II criteria). Caries experience was outlined by adapting ICDAS_0-6 criteria to the d/D component of the WHO dmf/DMF index configuration. Percentages (%) of caries experience-free children, of children with initial caries (ICDAS_1-2), and the mean d_1-2t/D_1-2T, d_3-6mft/D_3-6MFT and d_3-6mfs/D_3-6MFS indices were calculated. The probability of presenting with d_1-2t/D_1-2T ≥ 1 was assessed by binary logistic regression analysis, whereas negative binomial regression models examined the effect of socio-demographic parameters on d_3-6mfs/D_3-6MFS indices (level of significance: p ≤ 0.05).

RESULTS

60.1%, 48.1%, and 34.7% of the 5, 12, and 15-year-old children, respectively, had no caries experience at the defect level (d_3-6mft/D_3-6MFT = 0). Initial lesions (ICDAS_1-2) were detected in 17.7%, 19.3% and 17.4% of the 5, 12 and 15-year-olds, accordingly. Mean d_1-2t/D_1-2T was 0.93, 1.70, and 2.51, whereas mean d_3-6mft/D_3-6MFT was 1.48, 1.61, and 2.46 for the 5, 12, and 15-year-olds, respectively. Children with higher educated parents and 15-year-old urban residents exhibited significantly less caries experience at the defect level. Initial caries lesions presented a significantly higher probability of being detected in urban-residing 5- and 15-year-olds, while no consistent trend could be identified for parental education level. Caries prevalence and experience levels declined for all age groups in ten years.

CONCLUSION

Although the dental health of Greek children has improved disparities remain, calling for organised primary and secondary preventive interventions.

Caries prevalence in 6- to 10-year-old German schoolchildren with and without disability

BACKGROUND

Both nationally and internationally, there is a lack of data on the caries experience of schoolchildren with disability, especially for children aged 6 to 10 years.

AIM

To compare the caries experience of 6- to 10-year-old schoolchildren with disability attending special needs schools (SpS) with children without disability attending primary schools (PS) in two study periods five years apart.

MATERIALS AND METHODS

The caries prevalence and severity in schoolchildren aged 6 to 10 years attending PS or SpS was determined according to WHO standards for the school years 2010/2011 and 2015/2016, and the results were compared.

RESULTS

Data for 6805 schoolchildren were available. In both examination periods the caries prevalence in the deciduous teeth of 6- to 10-year-old children attending SpS was significantly higher than in children attending PS. The mean dmft values for children attending SpS were also significantly higher (2.11 in both years) than for those attending PS (1.48 and 1.77, respectively).

CONCLUSIONS

The dental health of schoolchildren with disability was worse than that of schoolchildren without disability. To improve this situation, caries prevention efforts in day care centers and schools should be intensified for children with disability.

Prevalence and Correlation of Dental Caries with its Specific Risk Factors in 5-15-year-old School-going Children in Urban Population of Ghaziabad

Dental caries is a rapidly emerging oral health problem amid the children with differing prevalence rate in different states of India. The data available from Ghaziabad city regarding dental caries are scarce; therefore, the study was conducted in 5–15-year school-going children in urban population of Ghaziabad.

The frequency of enamel and dentin caries lesions among elderly Norwegians

Aim: To describe the distribution of enamel-, dentin-, root- and secondary caries within an elderly population in Northern-Norway.Material and methods: A study population (n = 1 173) was divided into age groups: 65-69 (seniors), 70-74 (young elderly), 75-79 (elderly) and 80-94 (old elderly). Seven examiners registered presence, location and severity of caries lesions on x-rays and intra-oral photos. Severity of approximal, occlusal, secondary and root caries was graded (D_1-2: into enamel; D_3-5: into dentin, root caries)_, and decayed missing filled surfaces/teeth (DMFS/DMFT) were calculated. T-test, ANOVA and a Bonferroni correction were used.Results: The seniors had more primary caries (DS_1-5) compared to the oldest age groups, while the old elderly had significantly more secondary caries than the other groups (p < .05). Of those ≥65 years 13.8% were affected with root caries, 21% among the oldest. About 48% of the old elderly had one or more surfaces with untreated caries lesions into dentin, while for the other groups the number was 35% (p < 0.05).Conclusion: Individuals seem to maintain good oral health up to at least 80 years of age. Those older than 80 years have more root caries needing more intensified caries-controlling measures and a higher prevalence of untreated dentin lesions often in need of operative treatment.

Evaluation of Inter-pair Differences in Caries among South Indian Monozygotic Twins: A Cross-sectional Study

Introduction

Assessment of difference in caries prevalence among twins may help determine the character and the extent of the influence exercised by the environment, as a complement of the genetic constitution.

Aim

To investigate the inter-pair differences in caries prevalence among South Indian monozygotic twins in relation to birth weight, birth order, and gender. Possible correlation among other attributes such as breastfeeding, socioeconomic status, oral habits, frequency of brushing, and sweet intake were also assessed.

Materials and methods

A sample of 40 monozygotic children between the age group of 6 and 12 was selected. The parents were asked to complete the questionnaire and report with their children. Then dental examinations were carried out and the prevalence of dental caries among the twins were assessed.

Results

Among the total samples, 61.5% exhibited caries. Lower birth weight twins showed an increased chance of caries (72.22%), compared to higher birth weight twins (68.18%). Second of the twins had an increased risk of dental caries (70%) compared to the first (60%). 90% of the male twins and 45% of the female twins had caries. The association between dental caries and other variables were also assessed; those who were exclusively breastfed had an increased risk (70%) of caries. Evaluation of socioeconomic status and caries revealed a risk of for the high (65%), middle (62.5%), and lower groups (58.33%). Children without oral habits showed a higher prevalence (73.3%) of caries when compared to those without any habits (50%). It was noticed that the brushing frequency is not related to the severity of caries. The strongest association was noticed between excessive sweet liking and prevalence of dental caries.

Conclusion

The study revealed difference in caries prevalence among monozygotic twins in relation to birth weight, birth order, and gender. It was found that variations in caries prevalence existed with other attributes also.

How to cite this article

Zarina R, Kuriakose S, et al. Evaluation of Inter-pair Differences in Caries among South Indian Monozygotic Twins: A Cross-sectional Study. Int J Clin Pediatr Dent 2019;12(4):318–324.

A cross-sectional study to assess the prevalence of early childhood caries and associated risk factors in preschool children in district Mandi, Himachal Pradesh

AIM

The aim of this cross-sectional study is to investigate the prevalence and related risk factors of early childhood caries (ECC) in preschool children of district Mandi, Himachal Pradesh, India.

MATERIALS AND METHODS

A total sample of 2859 children aged between 2 and 6 years were selected from various parts of district Mandi. The status of dental caries and decayed missing and filled teeth (DMFT) score was recorded.

RESULTS

ECC increased significantly with age. Boys had significantly higher caries prevalence and mean DMFT score as compared to girls. Children who belonged to low socioeconomic group showed higher caries prevalence and mean DMFT score. Children aged 3-6 years who brushed their teeth twice daily had the least prevalence of dental caries as well as DMFT score when compared to children with one time and no brushing.

CONCLUSION

The early identification of poor oral hygiene and improper feeding habits should be considered in preventive health promotion in low socioeconomic communities of district Mandi, Himachal Pradesh.

Caries Trends in the Primary Dentition of 6- to 7-Year-old Schoolchildren in Germany from 1994 to 2016: Results from the German National Oral Health Surveys in Children

Long-term nationally representative caries data in the primary dentition are rare, but nonetheless central to assess needs in caries prevention and treatment. This study evaluated the prevalence and trends of caries levels in the primary dentition of 6- to 7-year-olds in Germany as a whole and its federal states individually. In 2016, employing a randomized cluster selection, 6- to 7-year-old first graders were included in the National German Oral Health Survey performed regularly since 1994/95. Children were examined by 482 calibrated dentists in all 17 German regions using the WHO criteria for the decayed, missing, and filled teeth (dmft) including the assessment of initial carious lesions (it). In total, 151,555 6- to 7-year-olds were examined. Caries prevalence in the primary dentition dropped from 65% in 1994 to 44% in 2016, while the mean caries experience dropped from 2.89 to 1.73 dmft (dt = 0.74, mt = 0.19, ft = 0.80). When initial lesions were included, the mean caries experience increased to idmft = 2.12 (it = 0.38). In 2016, 49.7% of the examined 6- to 7-year-olds were caries-free including initial lesions. The Care Index at the tooth level was 57.5%, and the Significant Caries Index was 4.84 dmft. Depending on the German region, the mean dmft varied considerably, ranging from 1.37 to 2.31. In conclusion, despite the overall caries decline in 6- to 7-year-olds in Germany, only minor caries reductions were observed over the last decade, with a still existing high proportion of untreated dental decay. This calls for more effective preventive and restorative efforts with focus on the primary dentition in Germany.

Diet and lifestyle habits associated with caries in deciduous teeth among 3- to 5-year-old preschool children in Jiangxi province, China

Background

The purpose of this study was to investigate the status of caries in deciduous teeth and the effect of diet and lifestyle habits on dental caries among 3- to 5-year-old preschool children in Jiangxi Province, China.

Methods

In total, 2880 cases involving preschool children were selected by stratified cluster sampling. The dental examination methods and criteria followed the WHO guidelines. SPSS 19.0 was used for the statistical analysis. Chi square tests were used to compare the caries prevalence among children with different social characteristics. Non-parametric tests were used to compare the decayed, missing and filled teeth (dmft) index values. Univariate and multivariate regression analyses were used to study the effect of diet and lifestyle habits on dental caries.

Results

The caries prevalence among the 2880 cases of 3- to 5-year-old preschool children in Jiangxi Province, China was 49.13%. There was no gender difference in this rate (P > 0.05). The caries prevalence increased with age (P < 0.05). The prevalence of caries in the rural areas was higher than that in the urban areas (P < 0.05). The deciduous central incisors and deciduous molars had a higher caries prevalence than the other deciduous teeth. According to the multivariate logistic regression analysis, the caries risk increased with living in a rural area, exclusive breastfeeding, greater frequency of daily snacking, high frequency of snacking before sleep and beginning to brush teeth at a late age; the caries risk decreased when parents helped their children brush their teeth.

Conclusion

The caries prevalence among 3- to 5-year-old preschool children in Jiangxi was lower than the level throughout the country and lower than the rate in other developing countries. The children’s diet and lifestyle habits were closely related to dental caries. Parents and children should be more aware of oral health, and parents should help their children develop healthy lifestyle behaviours.

Oral Health Status among Children with Cerebral Palsy in Dubai, United Arab Emirates

Objectives:

The purpose of this study was to assess the oral health status of children with cerebral palsy (CP) in Dubai, United Arab Emirates (UAE).

Materials and Methods:

Eighty-four CP and 125 healthy children were recruited from special needs centers and private/public schools in Dubai. A dental examination for decayed-missing-filled teeth in primary dentition (dmft)/Decayed-Missing-Filled teeth in permanent dentition (DMFT) indices, simplified oral hygiene index, calculus index (CI), and oral debris index was conducted. In addition, assessments of occlusal, dentofacial, soft tissue anomalies and erosion were conducted. Statistical analysis was conducted using SPSS for Windows, version 20.0 (SPSS Inc., Chicago, IL, USA).

Results:

DMFT/dmft scores were comparable in both groups. CI was significantly higher among children with CP. CP patients had a significantly higher proportion of anterior open bite, anterior spacing, Class II molar Angle malocclusion, trauma, high-arched palate, tongue thrust, lymphadenopathy, angular cheilitis, macroglossia, drooling, and erosion as compared to controls.

Conclusions:

The study highlighted peculiar characteristics and needs for the CP patients in Dubai, UAE.

Risk factors and prevalence of dental fluorosis and dental caries in school children of North India

The aim of the study was to assess the prevalence of dental fluorosis, dental caries, and associated risk factors in the school children of district Fatehgarh Sahib, Punjab, India, using a cross-sectional study design. Oral health status of children aged between 8 and 15 years was assessed using World Health Organization (WHO) 2013 criteria. Dental fluorosis was assessed using Dean's index, and dental caries were recorded using decayed, missing, filled/decayed, extracted, filled (DMF/def) indices. Four hundred school children were examined, of which 207 were in the 8-11-year-old group and 193 were in the 12-15-year-old group. The overall prevalence of dental fluorosis was 4.1%, which might be linked to a high concentration of fluoride in drinking water at certain locations of rural Punjab. The prevalence of dental caries was 36.5% with a mean DMF score of 0.3 and def score of 0.6. Risk factors for dental caries include oral hygiene behavior and sugar consumption patterns. The study highlights the need to increase awareness about the oral health and hygiene among the school children in India.

Study of Caries Prevalence among Miswak and Non-Miswak Users: A Prospective Study

INTRODUCTION

Various types of oral hygiene measures have been practiced by different populations around the world, as there is difference in the oral hygiene products including toothpicks and toothpowders. Miswak or tooth cleaning stick, for mechanical tooth cleaning, can be traced back at least to pre-Islamic times. Currently, many of the world populations still use chewing sticks as the single method for tooth brushing. The present study was done to study the incidence and prevalence of caries among Miswak and non-Miswak users.

MATERIALS AND METHODS

The study was done consisting of 120 cases and 120 control group (60 boys and 60 girls in each group) from the secondary school. The materials used were light, explorer, mirror, gloves, upper and lower teeth models, Miswak, and common toothbrush. After the recording of the primary data, Miswak was given to case group and the students were trained to use it on the teeth models. After 2 years, the examination of the teeth was done using the same method as before start of the study and by the same investigators. All the data were recorded, tabulated, and analyzed with the help of Statistical Package for the Social Sciences (SPSS) statistics version 17 using Student's t-test.

RESULTS

From the 240 participants, only 211 had continued the study for the total period of time. Out of these, 111 were from the study group and 100 from the control group. On comparison of the decayed-missing-filled (DMF) index scores of the study and control groups, before and after completion of the study, had also shown that the caries index was increased and the difference was found to be statistically significant.

CONCLUSION

From the study, it can be concluded that the study group using Miswak had less number of caries incidence than the control group of non-Miswak.

CLINICAL SIGNIFICANCE

Miswak can be used as teeth cleaning aid in day-to-day life as it can reduce the caries incidence.

Dental health evaluation of children in kosovo

OBJECTIVES

The aim of this study was to assess caries prevalence of preschool and school children in Kosovo.

METHODS

The assessment, which was carried out between 2002 and 2005, included measurements of early childhood caries, deft and DMFT.

RESULTS

In total, 1,237 preschool and 2,556 school children were examined. The mean deft of preschool children was 5.9, and the mean DMFT of school children aged 12 was 5.8. The caries prevalence for 2- to 6-year-old preschool children was 91.2%, and the prevalence for 7- to 14-year-old school children was 94.4%. The prevalence of early childhood caries was 17.6%, with a mean deft of 10.6.

CONCLUSIONS

All data assessed showed the very poor oral health status of children in Kosovo. Interviews with children and teachers indicated poor knowledge regarding oral health. Significant measures must be taken to improve this situation.

Dental treatment needs of permanent first molars in mashhad schoolchildren

Background and aims

In spite of their enormous importance, permanent first molars might be affected by caries in children in developing countries. The aim of this study was to evaluate the treatment needs of first permanent molars in a group of schoolchildren in Mashhad.

Materials and methods

This cross-sectional descriptive study was carried out on 700, 7-9 year-old students in primary schools in Mashhad. The schools were randomly selected from each district. Treatment needs and DMFT of first perma-nent molars were calculated. Data was analyzed using ANOVA, Chi-Square and t-test.

Results

A total of 95.3% of the children required dental treatment. Fissure sealant application and filling were the treat-ments most required in all age groups. The mean DMFT of first permanent molars was 1.31±1.4. It was significantly higher in girls than boys (P=0.040).

Conclusion

Great treatment needs and caries prevalence in permanent first molars in Mashhad schoolchildren show that dental caries is still a serious problem in the children of our society; therefore, education of parents and teachers is necessary for promoting children's oral health.