Prevalence pattern of dental caries in the primary dentition among school children

Dental Caries on Deciduous Molars among Children Visiting Dental Outpatient Department of a Tertiary Care Centre

Introduction

Dental caries is one of the most common, yet preventable childhood diseases. The aetiology of dental caries lies in the interplay between host, microorganism, substrate, and time. Risk factors for dental caries include physical, biological, environmental, behavioural, and lifestyle-related factors such as high numbers of cariogenic bacteria, inadequate salivary flow, insufficient fluoride exposure, poor oral hygiene, inappropriate methods of feeding infants, and poverty. The aim of the study was to find out the prevalence of dental caries on deciduous molars among children visiting dental Outpatient Department of a tertiary care centre.

Methods

This descriptive cross-sectional study was conducted on children who visited the dental outpatient department of Kathmandu University School of Medical Sciences, Dhulikhel Hospital from 15 June 2023 to 30 July 2023. Ethical approval was taken from the Institutional Review Committee of the same institute. A convenience sampling method was used. The point estimate was calculated at a 95% Confidence Interval.

Results

The prevalence of dental caries on deciduous molars in children was 252 (93.33%)(90.35-96.30, 95% Confidence Interval). One-third of the children had visited dental clinics for the first time. Lack of topical fluoride application was seen in the majority of the children.

Conclusions

The prevalence of dental caries on deciduous molars among pediatric patients was found to be higher than in other studies done in similar settings.

Keywords

children; dental caries; molars; prevalence.

Retrospective analysis of ferric sulfate and sodium hypochlorite pulpotomy procedures in primary molars

Background

Pulpotomy is a vital pulp treatment procedure frequently used in primary molars to preserve pulp vitality and function until tooth exfoliation. There is currently no pulp medicament with all the features of the ideal pulpotomy material. The present study compared the radiographic success of sodium hypochlorite with ferric sulfate (FS) when used for pulpotomy in primary molars.

Methods

A retrospective analysis was performed to evaluate the success rates of primary molars pulpotomized using sodium hypochlorite or FS according to radiographic findings. Healthy 4‒10-year-old children who had pulpotomy procedures on primary molars between 2018 and 2021 at the pediatric dental clinic and had a control radiograph at least 12 months later were enrolled in the study. The chi-squared test was used to determine the differences in success between these two materials.

Results

A total of 142 teeth, including 85 (59.9%) first primary molars and 57 (40.1%) second primary molars, in 98 healthy children were evaluated. The mean follow-up period of the teeth included in the study was 585.1±249.4 days. Radiographic success rates for NaOCl and FS groups were 73.8% and 71.0%, respectively, with no statistically significant difference (P>0.05). Internal root resorption (IRR) was the most common cause of radiographic failure in both groups.

Conclusion

Radiographic success rates of both materials were similar, and using these materials in primary molar pulpotomy procedures can be recommended in clinical practice.

Comparative Evaluation of Myristica fragrans Essential Oil-Zinc Oxide Mixture with Zinc Oxide Eugenol in Root Canal Filling of Primary Teeth: An In Vivo Study

Background

This is a preliminary investigation to assess the efficacy of Myristica fragrans (M. fragrans) as pulpectomy obturation material.

Objective

To assess the clinical and radiographic efficacy of M. fragrans as pulpectomy obturating material and compare it with zinc oxide eugenol, the gold standard in the obturation of primary teeth.

Materials and methods

This is a triple-blind, randomized, and controlled clinical trial performed on children aged between 4-8 years with primary molars requiring pulpotomy. A total of 50 teeth were randomly assigned into two groups-group I received M. fragrans with zinc oxide eugenol, and group II zinc oxide eugenol. Teeth were then filled with glass ionomer cement and were restored using stainless steel crowns. Clinical and radiographic evaluation was done by a blinded calibrated evaluator at 3, 6, and 12-month follow-up periods. The data obtained were subjected to statistical analysis.

Results

Clinical and radiographic success in both groups was 100% throughout the follow-up period. Extruded material in the M. fragrans group showed resorption during the follow-up period.

Conclusion

Myristica fragrans (M. fragrans) can be suggested as a pulpectomy obturating material for primary teeth. However, further clinical studies with long-term follow-ups are needed to give more affirmative results.

How to cite this article

Setty JV, Srinivasan I, Sathiesh RT. Comparative Evaluation of Myristica fragrans Essential Oil-Zinc Oxide Mixture with Zinc Oxide Eugenol in Root Canal filling of Primary Teeth: An In Vivo Study. Int J Clin Pediatr Dent 2023;16(2):237-243.

Tooth Type Enhanced Transformer for Children Caries Diagnosis on Dental Panoramic Radiographs

The objective of this study was to introduce a novel deep learning technique for more accurate children caries diagnosis on dental panoramic radiographs. Specifically, a swin transformer is introduced, which is compared with the state-of-the-art convolutional neural network (CNN) methods that are widely used for caries diagnosis. A tooth type enhanced swin transformer is further proposed by considering the differences among canine, molar and incisor. Modeling the above differences in swin transformer, the proposed method was expected to mine domain knowledge for more accurate caries diagnosis. To test the proposed method, a children panoramic radiograph database was built and labeled with a total of 6028 teeth. Swin transformer shows better diagnosis performance compared with typical CNN methods, which indicates the usefulness of this new technique for children caries diagnosis on panoramic radiographs. Furthermore, the proposed tooth type enhanced swin transformer outperforms the naive swin transformer with the accuracy, precision, recall, F1 and area-under-the-curve being 0.8557, 0.8832, 0.8317, 0.8567 and 0.9223, respectively. This indicates that the transformer model can be further improved with a consideration of domain knowledge instead of a copy of previous transformer models designed for natural images. Finally, we compare the proposed tooth type enhanced swin transformer with two attending doctors. The proposed method shows higher caries diagnosis accuracy for the first and second primary molars, which may assist dentists in caries diagnosis.

Silver Diamine Fluoride (SDF) Efficacy in Arresting Cavitated Caries Lesions in Primary Molars: A Systematic Review and Metanalysis

A systematic review and meta-analysis were carried out to evaluate the efficacy of silver diamine fluoride (SDF) in controlling caries progression in cavitated primary molars. A search for randomized and non-randomized trials with follow-up > 6 months was performed using PubMed, Scopus and Embase. The Cochrane risk of bias tools were used for the quality assessment. The success rate and odds ratios were chosen to calculate the effect size for the meta-analysis. A total of 792 papers were identified and 9 were selected. A high variability regarding SDF application protocol was found; otherwise, caries arrest was always recorded using visual/tactile methods. Two studies were judged at low risk of bias, six at moderate risk and one at high risk. Data from five studies were aggregated for meta-analysis. Heterogeneity was found moderate (I2 = 35.69%, p = 0.18). SDF application was found to be overall effective (fixed effect model) in arresting caries progression (ES = 0.35, p < 0.01). In a total of 622 arrested lesions, out of 1205 considered, the caries arrest rate was 51.62% ± 27.40% (Confidence = 1.55) using SDF ≥ 38% applied annually or biannually. In conclusion, when applied to active cavitated caries lesions in primary molars, SDF appears to be effective in arresting dental caries progression, especially if applied biannually.

Prevalence of Early Childhood Caries among the 3–5-year-old Children in Jeddah, Saudi Arabia

Introduction

Dental caries is a significant dental public health issue and it is the world's most common oral health condition among children. In the Kingdom, the prevalence and severity of early childhood caries has been rising.

Aim

The aim of the study is to establish the prevalence of early childhood caries among children aged 3-5 years in Jeddah as well as the associated risk factor of visiting a dentist.

Methodology

The research is based on a cross-sectional observational design. Children from both private and public schools were randomly selected from schools in all of Jeddah's regions until a sufficient sample size was attained. For the diagnosis of early childhood caries, the American Academy of Pediatric Dentistry criteria were used.

Results

In Jeddah, the prevalence of early childhood caries is 57% among children aged 3-5 years.

Conclusion

Caries in young children is a public health issue. There should be an increased emphasis to the parents that the child should visit the dentist by 12 months of age as recommended by many professional organizations. Regular dental appointments would then help to lessen the caries burden on children at an early age. The Four A's treatment regimen is recommended to aid in the prevention and early detection of early childhood caries.

How to cite this article

Vanka S, Vanka A, Wali O, et al. Prevalence of Early Childhood Caries among the 3-5-year-old Children in Jeddah, Saudi Arabia. Int J Clin Pediatr Dent 2022;15(S-2):S197-S200.

Impact of non-restorative cavity control on proximal carious lesions of anterior primary teeth on the tooth survival and patient-centered outcomes (CEPECO 2): study protocol for a non-inferiority randomized clinical trial

Background

Studies have questioned the necessity of restoring cavitated carious lesion on primary teeth, once the control of biofilm is the most important factor to arrest these lesions. This randomized clinical trial aimed to compare the survival of teeth treated with a non-restorative cavity control (NRCC) compared to resin composite restorations (RCR) on proximal carious lesion in anterior primary teeth, as well as the impact of these treatments on patient-centered outcomes.

Methods

A randomized clinical trial with two parallels arms (1:1) will be conducted. Children between 3 and 6 years old will be selected from the Center of Clinic Research of Pediatric Dentistry of Ibirapuera University (UNIB), a dental trailer (FOUSP) located on Educational Complex Professor Carlos Osmarinho de Lima, the Pediatric Dentistry Clinic of Santa Cecília University and from the Pediatric Dentistry Clinic of University Center UNINOVAFAPI. One hundred and forty-eight teeth will be randomly distributed in two experimental groups: (1) Selective removal of carious tissue and RCR; or (2) NRCC through cavity enlargement using a metallic sandpaper. The primary outcome will be tooth survival after 6, 12, 18 and 24 months. The duration and the cost of dental treatments will be considered for the estimation of the cost-effectiveness of the evaluated treatments. The discomfort reported by the participants will be measured after each treatment using the FIS scale. The participants’ satisfaction and perception of the parents/legal guardians will be evaluated through questionnaires. For the primary outcome, Kaplan–Meier’s survival and Long-Rank test will be used for comparison between the two groups. All the variables will be modeled by Cox regression with shared fragility. Significance will be considered at 5%.

Discussion

The NRCC could be an option to manage carious lesions on proximal surfaces of primary teeth, and the approach could be well accepted by the children and parents/legal guardians.

Trial registration Clinicaltrials.gov registration: NCT03785730, Registered on December 18th 2018, first participant recruited 30/04/2019, https://clinicaltrials.gov/ct2/show/NCT03785730.

Ethics Reference No: 91569118.8.0000.5597.

Trial Sponsor: Universidade Ibirapuera.

The Trial was prospectively registered.

Tooth-Level Analysis of Dental Caries in Primary Dentition in Myanmar Children

In developing countries, the prevalence of dental caries in children remains high, which means that implementing a simple and convenient classification is critical. The classification needs to be evidence-based and needs to reflect tooth-level information. In this study, the prevalence of dental caries in the primary dentition of 352 Myanmar school children at the ages of 5, 6, and 7 was analyzed at the tooth level to clarify the underlying data structure of the patterns of dental caries in the population. Ninety-three percent of subjects had caries in primary dentition and the mean number of decayed teeth in primary dentition was 7.54 ± 4.82. Based on the item response theory analysis, mixed-effect modeling, and Bayesian network analysis, we proposed the following classification: Group 1: No dental caries; Group 2: Dental caries in molar teeth or dental caries in maxillary anterior teeth; Group 3: Dental caries in both molar and maxillary anterior teeth; Group 4: Dental carries in mandibular anterior teeth. Dental caries (dmft) in the groups was different between groups. The results of characteristics of tooth-level information and classification presented in this study may be a useful instrument for the analysis of the data of dental caries prevalence in primary dentition.

Dental caries prevalence among 5- to 15-year-old children from SEAR countries of WHO: A systematic review and meta-analysis

Objectives

The aim of this review was to estimate the prevalence of dental caries in children 5-15 years of age in the countries of the South-East Asia Region (SEAR) of World Health Organization (WHO) and to describe the different caries indices used in these population-based studies.

Materials and Methods

A systematic search was carried out in two databases from 1^st January 2005 to 31^st May 2015. Studies were included if they met the predetermined eligibility criteria. Quality assessment was done with eight-item checklist. Meta-analysis was done for 5, 12, 15, and 6-15 years age group using software STATA version 12.

Results

The search strategy yielded 265 unique articles of which 36 met the inclusion criteria included for the review. Data were available for only three SEAR countries. The quality of the majority of the studies ranged from moderate to high. Heterogeneity between the studies was high (I² > 98%). Variation in dental caries prevalence was found among different ages and among different SEAR countries. The most commonly used index for measuring dental caries was the dentition status of the 1997 WHO criteria.

Conclusion

Dental caries continues to be a prominent oral health problem among children in the SEAR countries with huge variation in the prevalence across ages and countries. This review results can be used to update the "WHO Oral Health Country/Area Profile Program" for dental caries among children for SEAR.

Assessment of mother's ability in caries diagnosis, utilizing the smartphone photographic method

BACKGROUND

Smartphone is proved to be reliable in teledentistry model. The aim of the study was to assess the mother's ability in caries diagnosis, utilizing the smartphone-based photographic method.

HYPOTHESIS

Mothers have the ability for caries diagnosis utilizing the smartphone photographic method.

METHODS

A cohort of 100 mothers was given health education regarding dental caries diagnosis. Then, their children from the preschools were screened by the dentist for dental caries using visual examination, followed by clicking intraoral photographs using Motorola 3G phone. The photographs were sent through WhatsApp to respective mothers, and they were asked to diagnose their child's dental status. Accuracy and reliability measures of mother's diagnosis were estimated by calculating the sensitivity, specificity, predictive values, and kappa value.

RESULTS

The calculated value for sensitivity was 88.3%, specificity was 98.3%, positive predictive value was 92%, negative predictive value was 97%, and accuracy was 96%. There was a strong agreement between mother's and dentist's diagnosis (kappa value of 0.87).

CONCLUSION

Following the dental health education, it can be concluded that mothers are in a better position to diagnose their child's dental status through smartphone-based photographs.

Maternal anxiety, social status, and dental caries formation in children: a cross-sectional study

Objective

We sought to evaluate the association of maternal anxiety and social status with caries formation in children.

Methods

Participants comprised 258 pairs of children and their mothers. We collected information regarding age, sex, birth order of children, and mothers’ education and marital status using a questionnaire. The Spielberger Trait Anxiety Inventory was used to determine maternal trait anxiety levels. The children underwent oral examination. Total values for decayed, missing, filled, and total permanent/primary teeth (DMFT/dmft) were evaluated according to standards of the World Health Organization.

Results

No significant relationship was found between the mother's anxiety level and DMFT/dmft scores in their children. A negative correlation was observed between the child’s age and dental caries in children. The sex of the child, mother's education level, and marital status of the mother showed a weak negative correlation with the number of dental caries observed in their children.

Conclusion

Although social, economic, and environmental factors might contribute substantially to the development of dental caries, we failed to demonstrate a clear relationship between maternal anxiety and social status and dental caries in children. We can therefore conclude that biological factors are decisive in the formation of dental caries among children.

Prevalence of dental caries, oral health awareness and treatment-seeking behavior of elderly population in rural Maharashtra

Background and Objective

There have been numerous studies of oral health status of school children and young population; however, similar studies in elderly population in India are lacking. With advances in medical science and consequent increase in life expectancy, elderly population is on the rise and is a subject of growing concern for public health policy. Hence, an attempt was made to study factors influencing decayed, missing, and filled teeth (DMFT) index, oral health awareness, and dental treatment-seeking behavior of elderly population.

Methods

A cross-sectional community-based survey was conducted between September 2014 and December 2014 in villages in rural Maharashtra. Sociodemographic and health-related information were collected from 352 participants 60 years of age and above in 10 villages.

Results

Prevalence of dental caries was 76.4% in a study population with median DMFT score of 12 with interquartile range of 7-22. The majority of the participants cleaned their teeth with fingers using charcoal and mishri. Only 17.2% participants used toothbrush. About 39% participants had experienced dental pain, of which majority did not visit dentist. The median DMFT index who used toothbrush and toothpaste was significantly less when compared with participants who did not use tooth brush and tooth paste. The majority of the participants had one or more missing teeth, but only 2.2% were using dentures.

Conclusion

There is an urgent need for comprehensive oral health educational programs, and accessible and affordable oral health services to be provided to rural community.

Primary Canine and Molar Relationships in Centric Occlusion in 3- to 6-year-old Children: A Cross-sectional Survey

Introduction

The occlusal relationship of primary dentition plays a vital role in predicting malocclusion in permanent dentition because primary dentition is the stepping stone for permanent dentition.

Aim

The aim of the study was to assess the occlusal relationships between the primary canine and the primary molar in the primary dentition in centric occlusion and also spacing in primary dentition among a group of 3- to 6-year-old children.

Materials and methods

The survey was based on examination of the primary dentition of 100 school children aged 3–6 years from Chennai, Tamil Nadu, India. The examination was done using pen light and mouth mirror. The occlusal assessment was done only on children who are healthy and free from extensive caries. The primary molar relationship and the canine relationship were assessed using Foster and Hamilton criteria with the teeth in centric occlusion.

Results

The study showed that, out of 100 school children, the molar relationship 56% had mesial step followed by 36% with flush terminal relationship and 8% with distal step relationship and out of 100 children, the canine relationship 61% of children had class III relationship followed by 27% class I relationship and 12% class II relationship. And around 54% had spacing out of which, maximum spacing was found only in the upper anteriors.

Conclusion

The survey concluded showing that the mesial step primary relationship was more common among 5- to 6-year-old children followed by flush terminal relationship and distal step relationship. The class III primary canine relationship was more common followed by classes I and II. Spacing was found more common in upper anteriors.

How to cite this article

Kumar D, Gurunathan D. Primary Canine and Molar Relationships in Centric Occlusion in 3 to 6-year-old Children: A Cross-sectional Survey. Int J Clin Pediatr Dent 2019;12(3):201–204.

Prevalence of Early Childhood Caries in India - A Systematic Review

Early Childhood Caries (ECC) is a serious public health problem in developed as well as developing nations, with high prevalence among children around the world. This systematic review of the national literature was undertaken to document the prevalence of Early Childhood Caries. Studies evaluating the prevalence of Early Childhood Caries (ECC) in the Indian population were investigated. The method under evaluation was the use of a caries experience index to calculate the prevalence of ECC. An extensive literature search was done in the following databases: PubMed, IndMED and Cochrane upto June 2016. A modified version of the Newcastle-Ottawa Scale for cross-sectional studies was used for assessment of the quality of the studies. A systematic literature search yielded 503 publications from the various databases searched. Based on the inclusion and exclusion criteria, the final number of included studies were 54. Among the included studies, 19 studies were carried out in the state of Karnataka. Analysis of all the included studies revealed the overall prevalence of ECC in India to be 49.6%. Andhra Pradesh was found to have the highest prevalence of ECC at 63%, and the lowest prevalence was reported in Sikkim (41.92%). This review has reported a high prevalence of ECC in India. None of the states reported prevalence below 40%. The government should identify ECC as a national priority which requires significant attention.

Orofacial Manifestations of Leukemic Children on Treatment: A Descriptive Study

Aim

To study the prevalence of orofacial manifestations in leukemic children undergoing treatment and to correlate these manifestations with various stages of chemotherapy.

Materials and methods

A prospective noninvasive study comprising 43 acute lymphocytic leukemic pediatric patients at various stages of therapy. They were examined on day of their each blood examination, and lesions were recorded on a self-designed pro forma. A total of 133 observations were recorded by a single observer. The treatment was divided into the phase of induction, consolidation, maintenance, and relapse.

Results

The data were analyzed using Statistical Package for the Social Sciences (SPSS) version 10.1. There were 24 males and 19 females in this study, aged between 3 and 13 years. The common oral lesions seen were dental caries, lymphadenopathy (86.04%), pallor (65.11%), ulcers (13.95%), mucositis (16.27%), gingival enlargement, hemorrhages (20.93%), candidiasis, herpes simplex virus (HSV) infection, xerostomia (44.18%), paresthesia, and tooth mobility. Herpes simplex virus infection was seen only during induction and consolidation phases. Ulcers were seen during all phases of therapy.

Clinical significance

Orofacial manifestations may be seen as the first sign of leukemia and a dentist may play a significant role in the diagnosis of the disease per se. This study highlights not only about commonly occurring lesions but also their variation during various phases of therapy. To the best of our knowledge, no study has such an extensive reporting of orofacial manifestations of acute lymphocytic leukemia (ALL) patients under treatment.

How to cite this article: Aggarwal A, Pai KM. Orofacial Manifestations of Leukemic Children on Treatment: A Descriptive Study. Int J Clin Pediatr Dent 2018;11(3):193-198.

Dental Caries Scenario Among 5, 12 and 15-Year-old Children in India- A Retrospective Analysis

OBJECTIVES

Dental caries is the most prevalent dental disease and children are one of the most affected groups. Thus, the present study was conducted to assess the average dental caries prevalence across different WHO index age groups (5, 12 & 15 years) for the past fifteen years.

MATERIALS AND METHODS

Literature search was performed electronically in various search engines like google scholar, PubMed, Copernicus, etc. using Dental caries and India as MeSH terms. Articles from the past 15 years reporting on dental caries prevalence and experience in India were searched and this online searching strategy collected and listed 781 articles. After evaluating their titles and abstracts, only 30 articles fulfilled the inclusion and exclusion criteria & were finally selected for complete review and data collection. Five articles which were hand searched were also included. Pooled estimates were calculated for different index age groups and different regions (Northern and Southern) separately with a confidence interval of 95% both for prevalence and experience of dental caries.

RESULTS

The pooled prevalence of dental caries was found to be highest in 15 year olds followed by 5 and 12 years (62.02%, 48.11% & 43.34% respectively). Weighted mean was also found to be highest for 15 years, followed by 5 and 12 years (2.56±6.508, 2.49±7.78, 1.48±3.292 respectively). Pooled prevalence and weighted mean for the Northernern India region was found to be more in all the index age groups as compared to the Southernern India region.

CONCLUSION

More than 40% of the children in India have shown dental caries in both primary and permanent teeth in the past 15 years. Also, Northernern region was found to be more affected by dental caries than Southern region. Since children are seen as the future of the nation, this data could be helpful in the planning of oral health care services by the concerned authorities in the community.

Dental caries and their treatment needs in 3-5 year old preschool children in a rural district of India

Background:

Dental problems in the preschool children are neglected by their parents as the deciduous teeth are going to shed off, and hence considered to be of no importance and more of economic burden if attended to them.

Aims:

This study was to determine the caries prevalence in preschool children (3-5-year-old) of rural Moradabad district, to analyze the specific pattern of dental caries experience in this population and to assess the treatment needs among them.

Material and Methods:

Children within the age group of 3-5 years attending Anganwadi centers of rural Moradabad district were included in the study. Caries diagnosis was based on decayed, extracted, filled surface (defs) and the treatment needs were recorded using World Health Organization (WHO) oral health assessment form 1997.

Results:

Out of 1,500 children examined, 48.7% males and 52.6% females did not require any treatment. The mean decayed, extracted, filled teeth (deft) value was found to be significantly high in 5-year-old participants when compared to 3-year-old participants (P < 0.01). Majority of the children required one surface filling followed by two surface fillings, caries arresting sealant care, extraction, crown bridge element, pulp care, and space maintainer.

Conclusion:

The most common pattern was pit and fissure, then maxillary anterior pattern, posterior proximal pattern, and posterior buccal lingual smooth surface pattern. The mean deft value was higher in males as compared to females. There is a greater need for oral health education among parents and teachers.

Prevalence of dental caries and treatment needs in children in coastal areas of West Bengal

Objective:

This study was carried out to measure the caries prevalence and treatment needs in school children of 6-14 year old residing in coastal areas of West Bengal.

Materials and Methods:

A total of 1764 children of 6-14 years age group, studying in different primary and high schools of the coastal areas were examined using World Health Organization criteria (1997) to record the prevalence of dental caries. The treatment needs were also calculated according to that given criteria.

Statistical Analysis:

The results were subjected to statistical analysis using the Chi-square test and unpaired ‘t’ test.

Results:

Dental caries were founded low in the studied population. The overall all caries prevalence in the permanent dentition was 28.06%, in boys it was 25.39% and in girls it was 30.86%. Therefore caries prevalence in female was higher and which was statistically highly significant (P < 0.05). The most frequently required treatment was one surface filling followed by other treatments irrespective of sex and age group.

Discussion:

The presence of sea foods containing high fluoride and least availability of refined carbohydrate in the diet may be the reason of lower prevalence.

Conclusion:

child oral health is always a matter of concern for a developing country so further research is required to explore actual causes.

Cariogenic potential of milk and infant formulas: a systematic review

AIM

To assess the cariogenic potential of cow's milk, human milk and infant formulas in comparison to sucrose in animal models.

METHODS

Electronic search of the following databases were undertaken: PubMed-MEDLINE, MeSH and ingentaconnect. In addition, the reference lists of all eligible studies were searched. Characteristics such as animal species were used; comparisons and outcomes measured were analysed.

RESULTS

The search yielded a total of 13 articles of which six studies met the inclusion criteria and seven were excluded. All the six included studies used rat models for assessing the cariogenic potential of the test groups. Cow's milk was compared with sucrose in all of the six studies, reporting cow's milk to be less cariogenic than sucrose. Two studies compared human milk to sucrose and reported human milk to be less cariogenic than sucrose, but more than that of cow's milk. Although infant formulas were compared with sucrose in four studies, their cariogenic potential was a matter of some ambiguity.

CONCLUSION

The evidence suggests that cow's milk and human milk are less cariogenic than sucrose, with cow's milk being the least cariogenic. The cariogenic potential of infant formulas varied across the studies, with some being as cariogenic as sucrose.

Prevalence and factors related to dental caries among pre-school children of Saddar town, Karachi, Pakistan: a cross-sectional study

BACKGROUND

Dental caries is highly prevalent and a significant public health problem among children throughout the world. Epidemiological data regarding prevalence of dental caries amongst Pakistani pre-school children is very limited. The objective of this study is to determine the frequency of dental caries among pre-school children of Saddar Town, Karachi, Pakistan and the factors related to caries.

METHODS

A cross-sectional study of 1000 preschool children was conducted in Saddar town, Karachi. Two-stage cluster sampling was used to select the sample. At first stage, eight clusters were selected randomly from total 11 clusters. In second stage, from the eight selected clusters, preschools were identified and children between 3- to 6-years age group were assessed for dental caries.

RESULTS

Caries prevalence was 51% with a mean dmft score being 2.08 (±2.97) of which decayed teeth constituted 1.95. The mean dmft of males was 2.3 (±3.08) and of females was 1.90 (±2.90). The mean dmft of 3, 4, 5 and 6-year olds was 1.65, 2.11, 2.16 and 3.11 respectively. A significant association was found between dental caries and following variables: age group of 4-years (p-value < 0.029, RR = 1.248, 95% Bias corrected CI 0.029-0.437) and 5-years (p-value < 0.009, RR = 1.545, 95% Bias corrected CI 0.047-0.739), presence of dental plaque (p-value < 0.003, RR = 0.744, 95% Bias corrected CI (-0.433)-(-0.169)), poor oral hygiene (p-value < 0.000, RR = 0.661, 95% Bias corrected CI (-0.532)-(-0.284)), as well as consumption of non-sweetened milk (p-value < 0.049, RR = 1.232, 95% Bias corrected CI 0.061-0.367).

CONCLUSION

Half of the preschoolers had dental caries coupled with a high prevalence of unmet dental treatment needs. Association between caries experience and age of child, consumption of non-sweetened milk, dental plaque and poor oral hygiene had been established.

Mode of delivery, mutans streptococci colonization, and early childhood caries in three- to five-year-old Thai children

OBJECTIVE

To investigate whether mode of delivery is associated with mutans streptococci (MS) colonization and early childhood caries (ECC) in preschool Thai children.

METHODS

Three hundred and fifty mothers and their 3- to 5-year-old children (184 born vaginally and 166 born by Caesarean section) participated in the study. Data included a dental examination, MS colonization assessed by the Dentocult(®) SM Strip Mutans method, and a questionnaire survey of family socio-demographic information, as well as children's birth history, dietary habits, and oral health practices.

RESULTS

Overall, ECC prevalence was 56% in 3-year-old and 78% in 5-year-old Thai children. Compared to children delivered by C-section, vaginally born children experienced increased ECC prevalence (73.8% versus 59.6%; P = 0.009) and were more likely to have higher MS scores (OR = 1.8, 95% CI = 1.1-2.9), adjusting for mother's gestational age, MS score, feeding practice habits; child's age and tooth brushing habits. Children's MS scores were highly correlated with their mothers' MS scores (P < 0.001). Additionally, children's age, MS colonization, and mothers' prechewing feeding habits were the most significant risk indicators for ECC in Thai children.

CONCLUSION

Our findings suggest that mode of delivery is significantly correlated with MS colonization and caries outcomes in young Thai children. Future studies are needed to further understand the possible biological mechanisms linking mode of child delivery to the colonization of cariogenic microbiota and development of ECC.

An assessment of the cariogenicity of commonly used infant milk formulae using microbiological and biochemical methods

Dental caries is an important dental public health problem and is the most prevalent oral disease among children in the world. The present study was undertaken to evaluate and comparatively assess the change in plaque and salivary pH after ingestion of various commercially available infant milk formulae, and also to evaluate and comparatively assess plaque and salivary samples for change in colony-forming units of Streptococcus mutans caused due to their ingestion. 36 children in the age group of 1-2 years were fed with infant milk formulae three times a day for 21 days and results quantified. The present study revealed a highly significant increase in the levels of colony-forming units of Streptococcus mutans in both the plaque and salivary samples when assessed at baseline and after a period of 21 days, with the t value being 11.92 for the plaque samples and 11.66 for the salivary samples. It was also observed that all the test samples produced significantly lower plaque pH values than pre-feed pH. Based upon this study, further evaluation of the cariogenicity of infant milk formulae is recommended.

Experiência de cárie dentária na primeira dentição em município com fluoretação das águas

OBJETIVOS: determinar a prevalência e gravidade da cárie dentária e a necessidade de tratamento em pré-escolares de cinco e seis anos de idade em um município com fluoretação de águas. MÉTODOS: o desenho do estudo foi do tipo transversal caracterizado por um censo, sendo examinadas 432 crianças de cinco e seis anos, de ambos os sexos, das escolas da rede municipal de Passo Fundo, Rio Grande do Sul. O levantamento epidemiológico foi realizado por meio de exames clínicos e dados relativos às questões demográficas referentes aos pré-escolares, segundo metodologia proposta pela Organização Mundial da Saúde. Os examinadores foram devidamente treinados e calibrados, obtendo resultado do teste Kappa de 0,91. A pesquisa foi encaminhada e aprovada pelo Comitê de Ética em Pesquisa do Instituto de Cardiologia de Porto Alegre-RS. RESULTADOS: o índice ceo-d foi de 4,1 (±3,73) e somente 106 (24,5%) das crianças estavam livres de cárie dentária na dentição decídua; a prevalência da necessidade de tratamento de cárie foi de 69,9%. CONCLUSÕES: alta prevalência de cárie dentária e grande necessidade de tratamento foram encontradas, denotando que as estratégias de promoção de saúde bucal do município ainda não estão sendo efetivas.

Caries prevalence and tooth surface distribution in a group of 5-year-old Italian children

AIM

This was to investigate caries experience and patterns in a sample of 5-year-old children attending nursery schools in the Veneto Region (Italy).

STUDY DESIGN

Cross sectional study.

METHODS

The study was carried out between September 2005 and May 2006 with 348 randomly selected 5-year-old children. Two calibrated dentists using an artificial light, a plane dental mirror and a dental probe performed clinical dental examination. World Health Organisation (WHO) diagnostic criteria for dental caries: dmft, dmfs and SiC indexes were used to measure the severity of the disease.

STATISTICS

dmfs scores were analysed either as a continuous continuous (calculating means and standard deviations) or as a categorical variable (providing proportions). Pearson's chi square test for comparison between groups and Wilcoxon signed-rank test for distribution of dmfs scores between pairs of contiguous molars were used.

RESULTS

The most commonly affected teeth were primary molars, (78% of the overall sample), especially in the mandible. The surfaces of molars most often affected were the occlusal (52%). Proximal surfaces were affected more in first than in second primary molars. Dental caries occurred most often in the maxilla. The frequency of caries in anterior teeth was low (12%).

CONCLUSIONS

Caries experience in the primary dentition showed a symmetrical distribution localized on primary molars, most often in their occlusal surface. Caries in anterior teeth was uncommon.