The lack of a consistent pattern of correlation between the BPb and TPb levels of the study population led us to conclude that our observations may be the result of a lack of homogenous study samples. Although learn more our results were in accordance with those of studies undertaken in other countries3,6, further research of different Indian populations of varying ethnicities is necessary to corroborate these results. Further, studies need to be carried out on carious teeth as higher lead concentrations have been reported in carious than in noncarious teeth26. The following conclusions could be drawn from the present study: 1  Blood-lead

concentration was higher in children residing in closer proximity to the zinc–lead smelter, whereas TPb was not influenced by minor increase/decrease in distance from the lead source PARP activation within the

area of the study. It was concluded that although no correlation is found between the TPb and BPb levels, in view of the limitations of the present study, more studies with larger sample sizes, using more homogenous and standard parameters and in different ethnic populations of India are needed to substantiate the results of the present study. However, it is proposed that primary TPb level be substituted as the biologic indicator of lead exposure of the child.  Hitherto unavailable data pertaining to blood- and tooth-lead levels of a group of Indian children.  This paper can contribute to the paediatric dentist’s role in promotion of public health. The paediatric dentist needs to be aware of environmental pollutants that can adversely affect general and dental health. Further studies are underway that aim to determine the effects of lead, if any, on the oral

and dental tissues. “
“This study aimed to assess factors associated with occurrence of pulp necrosis (PN) in traumatized primary incisors, which may contribute to the prognosis of this outcome. Data were collected aminophylline by single examiner through the analysis of clinical files of traumatized patients. The occurrence of PN in traumatized teeth was the evaluated outcome. Poisson regression analysis was applied to calculate the relative risk (RR) and the respective 95% confidence interval. Five hundred and twenty-one files were assessed, summing up 727 traumatized primary incisors. The proportion of teeth affected by PN was 23.8%. Multiple regression analysis indicated the following factors as positively associated with PN: trauma with displacement, pulp exposure fracture, self-report of pain, yellow, grey and brown crown discoloration, internal root resorption, and bone loss. Trauma in 4- to 5-year old and more than 5-year-old children, pulp canal obliteration, and external root resorption with bone formation were negatively associated with PN.