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.

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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.