Introduction: The determination of a tooth-size to arch length discrepancy in mixed dentition requires an accurate prediction of the mesiodistal width of the unerupted permanent teeth. The Moyers mixed dentition space analysis is the non-radiographic method for detecting tooth-size arch length discrepancies. Moyers analysis was developed for North American children. Anthropological studies reveal that tooth size varies among different races and ethnicities. Aim: The present study was aimed to determine the applicability of Moyers mixed dentition arch analysis in children of Baddi, Himachal Pradesh. Materials and methods: Dental study models of 120 children in age group of 13- 16 years, were analysed who presented with complete eruption of permanent mandibular incisors, maxillary and mandibular canines & premolars. All dentitions were required to be free of any signs of dental pathology or anomalies. Measurements of the mesiodistal dimensions of the mandibular and maxillary teeth were made using a digital caliper with a Vernier scale that was calibrated to the nearest 0.01mm. The values were then subjected to statistical analysis. Results: All tooth groups showed highly significant differences (p<0.001) between mesiodistal widths in male and female subjects. Significant differences (p<0.05) were found between actual widths and the Moyers tables at almost all percentile levels, including the recommended 75%. Conclusion: The differences noted between predicted values from the Moyers tables and that of the present investigation might be the result of racial and ethnic diversity.

OBJECTIVE:The objective of the study was to obtain data on prevalence and severity of dental erosion among acid industry workers in Baddi (Himachal Pradesh).MATERIALS AND METHODS:A cross-sectional study was conducted among 800 battery industry workers. The demographic details were recorded on a prestructured pro forma. Type III examination was done. Dental erosion was recorded based on the index given by Bardsley (simplified scoring criteria for tooth wear index). Appropriate statistical tests were used to interpret the data.RESULTS:The prevalence of dental erosion was found to be 48.6%. Prevalence increased with the duration of employment. Dental erosion was most commonly found in the labial surfaces of maxillary anterior teeth.CONCLUSION:Erosion is a condition which is multifactorial and becomes more aggravating in the presence of acidic environment. Therefore, the workers working in such conditions should be more careful, and mandatory policies should also be followed by such industries to maintain the overall health of the workers.

This paper reports the accidental injection of formalin into oral tissue space, in an 8-year old child resulting in chemical facial necrotizing cellulitis and its management. The common practice of keeping formalin in local anesthesia vials should be avoided by dental clinics, to prevent such unfortunate incidents.

Background:The eventual sequel of dental caries is determined by the dynamic equilibrium between pathological factors which lead to demineralization and protective elements, which in turn leads to remineralization. Remineralization is the natural process for noncavitated demineralized lesions and relies on calcium and phosphate ions assisted by fluoride to rebuild a new surface on existing crystal remnants in subsurface lesions remaining after demineralization. Hence, the present study was designed to evaluate the efficacy of fluoride dentifrices in remineralizing artificial caries-like lesions in situ.Materials and Methods:A double-blind, randomized study with an initial washout period of 7 days was carried out for 3 weeks. Twenty volunteers were enrolled, who wore the intraoral cariogenicity test appliance having enamel slabs incorporated into them, for 3 weeks. 10 participants were instructed to use Group A dentifrice (fluoride) and the other 10 Group B dentifrice (nonfluoride) for brushing their teeth. The enamel slabs were analyzed by surface microhardness testing and scanning electron microscopy (SEM) at 3 intervals.Results:No significant differences was seen in the microhardness values recorded for Group A and Group B at baseline and after demineralization (P > 0.05); however Group B exhibited lesser microhardness compared to Group A, after intra-oral exposure (P < 0.05). In the SEM analysis, the Group A enamel surfaces had more regular and longer crystallites to those of the Group B.Conclusion:Fluoride dentifrices avert the decrease in enamel hardness and loss of minerals from the enamel surface to a large extent as compared to the nonfluoride dentifrices.

The deletion of chromosome 22q11.2 is described as Velocardiofacial Syndrome orDi George Syndrome. CATCH 22 stands for cardiac defect, abnormal faces, thymichypoplasia, cleft palate, hypocalcaemia.Other defects seen are velopharyngeal insufficiency with or without cleft palate,immune problems, feeding difficulties, hypocalcaemia, learning disabilities,behavioral abnormalities and lastly characteristic facial features.A high prevalence ofdental caries, abnormalities of tooth shape, eruption and number, and enamel defectssuch as hypomineralisation and hypoplasia are also seen in these patients.A case of 7year old child with Veligocardiofacial syndrome is discussed in thisarticle. Facial dysmorphism and common dental manifestations is typically noticeablein patients with this syndrome. Enamel aberrations related to hypocalcemia mayresult in a higher frequency of dental caries. The dentists need to be aware of thedental features of this condition in order to refer them to the adequate specialists.