Dental fluorosis can be defined as a developmental condition that affects dental hard tissue, mainly enamel characterised with white or yellowish lesions due to excessive fluoride exposure. Fluorosis can have a major impact on the appearance, structure and shape of the tooth which posed a significant aesthetic concern to individuals having this condition. There are several treatments recommended in treating dental fluorosis depending on the severity of the disease itself ranging from tooth bleaching to prosthetic crowns in severe cases. This case report describes the use of resin infiltration technique on a patient with mild to moderate severity of dental fluorosis of the upper anterior teeth which produce an acceptable improvement of the appearance of the affected tooth. Resin infiltration technique in this case provided a conservative and inexpensive approach in treating mild to moderate dental fluorosis for the patient, improving the aesthetic without significant loss of tooth structure.

A213Objectives: Pediatric vaccination is one of the cornerstones of public health strategy. Despite their proven effectiveness, a proportion of the population habitually remains unvaccinated; vaccine-preventable infections therefore represent an incremental and avoidable economic burden. The extent of this burden depends on the changing epidemiology of each particular agent. The objective here was to estimate the past and present epidemiologic burden of severe vaccine-preventable illness in Canada. MethOds: Data on children (age< 15 years) hospitalized with influenza (and lower respiratory tract infections), measles, mumps, meningitis, rubella, pertussis, or varicella were identified by International Classification of Diseases (ICD) codes for years 2004 to 2014 from the national Discharge Abstract Database. Counts were stratified by province, age, and sex. Data on population size were obtained from Statistics Canada, and used to estimate rates of infectious disease hospitalization per 100,000 population. Data were compared over time, modelled using Poisson regression, and trends compared across provinces. Results: There were 1,845 hospitalizations for infectious diseases among children in 2004/05, increasing to 1,909 hospitalizations in 2014/15. National hospitalization rates per 100,000 children aged < 15 years in 2004/05 were: 12.2 (influenza), 0.1 (measles), 8.0 (meningitis), 0.2 (mumps), 4.6 (pertussis), and 7.1 (varicella). Counts of rubella were not reported in 2004. In 2014/15, national rates were 20.1 (influenza), 0.2 (measles), 9.4 (meningitis), 0.3 (mumps), 1.8 (pertussis), 0.02 (rubella) and 1.4 (varicella). Temporal trends observed were consistent when considered according to province. cOnclusiOns: While severe vaccine-preventable illness among children in Canada occurs infrequently, nonetheless almost 2,000 hospitalizations occur annually for these conditions. While in general rates of severe infections are constant and low, as expected, rates of illnesses prevented by more newly-introduced vaccines (e.g. pertussis and varicella) are declining. Understanding the attributable length of stay and frequency of sequelae will be important to accurately estimate the associated economic burden.

Cosmetic veneer has become a popular option for patients seeking to improve aesthetic in their smile. The procedure can be done through a direct or indirect technique which differs in term of material used and laboratory involvement. Despite producing a better aesthetic result than its direct technique counterpart, high-cost treatment, multiple visit requirement and invasive nature of tooth preparation are proven to be a stumbling block to the patient in some cases to choose indirect technique. Therefore, direct composite veneer technique can be offered due to its low costing and conservative concept which advocates more tooth structure preservation. This case report is about direct composite veneer for anterior teeth rehabilitation and its simple and conservative protocol.