Objective: The establishment and maintenance of normal occlusion constitutes one of the important objectives of pediatric dentistry. There are very few studies assessing the occlusal characteristics of primary dentition in the preschool children. The objective of this study was to assess the occlusal characteristics of primary dentition and difference in various parameters, in children between 3 and 5 years of age.Materials and methods: Eight hundred and eight healthy children, of age group between 3 and 5 years, and having full set of deciduous dentition, were selected by random sampling. Examination and recording of occlusal characteristics were done by single examiner.Results: Flush terminal molar relationship was seen in 67.9% of children. Statistically significant (χ2 = 47.835, p = 0.001) increase in mesial step molar relationship was seen with age. The class I canine relationship was the most prevalent canine relation, however the agewise changes of canine relation were not statistically significant. Anterior open bite was observed in 0.2% of children, which was less than the prevalence reported earlier in literature. 91.2% of children had overjet of 1 to 2 mm. The incidence of anterior and posterior crossbite was 0.4%. No cases of infraocclusion and scissors bite were observed.Conclusion: There is change in deciduous molar relationship as age increases. There is a significant increase in mesial step molar relation in 5 years age group compared to 3 years. The low prevalence of posterior crossbite and anterior open bite is suggestive of lower prevalence of sucking habits in children. Larger sample size may be required to assess the prevalence of infraocclusion and scissors bite.How to cite this article: Bhat SS, Rao HTA, Hegde KS, Kumar BSK. Characteristics of Primary Dentition Occlusion in Preschool Children: An Epidemiological Study. Int J Clin Pediatr Dent 2012;5(2):93-97.

AimThe aim of this study is to evaluate the remineralization potential of Clinpro XT varnish containing tricalcium phosphate (TCP) and MI varnish containing casein phosphopeptide (casein phosphopeptide–amorphous calcium phosphate, CPP–ACP).Materials and methodsThirty premolar teeth were taken and divided into three groups. Samples were sliced mesiodistally into buccal and lingual halves using a diamond disk bur. The buccal halves of the teeth were used for the study. Artificial caries like lesions were produced and evaluated with Diagnodent. The samples in each group were treated with the respective remineralizing agent (except for the control group) at every 24 hours for 7 days and the surfaces were assessed using Diagnodent to record the values after the remineralization procedure. The Diagnodent values obtained were tabulated and statistically analyzed using one-way ANOVA and Tukey's multiple comparison tests.ResultsThere was a significant difference between the values calculated before and after remineralization in all the three groups.ConclusionThe study findings showed that MI varnish containing CPP–ACP had the highest release of fluoride as compared to the Clinpro fluoride releasing varnish.Clinical significanceMI varnish is a 5% NaF varnish containing CPP–ACP to give an exceptional fluoride varnish that releases more bioavailable fluoride, calcium, and phosphate, hence, can be used successfully in remineralization of early carious lesions. CPP–ACP can be used in the clinical practice for reversing or arresting the early carious lesions.How to cite this articleVarma V, Hegde KS, et al. Comparative Evaluation of Remineralization Potential of Two Varnishes Containing CPP–ACP and Tricalcium Phosphate: An In Vitro Study. Int J Clin Pediatr Dent 2019;12(3):233–236.