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This book speaks about treatment of dental fluorosis by microabration (prema) and bleaching by 35% hydrogen peroxide . prema is paste contains hydrochloric acid as 18% and other ingradients. the research was done in Sudan -Abogroon where school children age 9-12 were the participant of the study.Abogroon was been chosen because it is area of endemic fluorosis. two groups of the childern were suspected to the treatment selected randomly. The upper central incisors were the population of the study of each child.The group that treated by microabration are taken to the college of dentistry...