background: knowledge of existing situation in each region plays great role in order to prevent oral and dental diseases in people. meanwhile, dmft index is one of the best epidemiological indices in dentistry representing oral hygiene situation in society. so, this study was conducted in order to evaluate dmft index in 12- years-old students of zarand city at 2011. methods: this descriptive st...

background: for planning in health,preventing and representing valuable dentistry services, we need to identify and evaluate the information on the status of individuals' dental hygiene and health. in this examination, evaluating dental health which is one of hygienic main and key problems has been conducted according to world's standards in correction center of tehran province in 200...

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background: dental caries is the most infective microbial dental disease. basic screening survey is an epidemiologic index for determination of caries prevalence. the aim of this study was assessment of caries free prevalence in 6, 12 & 15- year old school children in kerman during 5 years.   methods: in this cross-sectional, descriptive –analytic study, 15369 school children aged 6, 12 &15 yea...

Background: Candida albicans (C. albicans) may have cariogenic potential but its role in caries etiology has not been established. The aim of this study was to determine C. albicans in supragingival dental plaque and infected dentine of cervical and proximal in early childhood caries (ECC). Methods: This cross-sectional study was carried out on 6o children aged 2-5 years, which were divided int...

background: one of the causative factors in development of dental caries is microorganisms. two species of mutans streptococci including streptococcus mutans and streptococcus sobrinus are associated with dental caries in human beings. the aim of this study was to investigate the frequency of s. mutans and s. sobrinus in saliva of children with different caries activity and ability to form biof...

Background: Early Childhood Caries (ECC) is one of the most common chronic child-hood diseases. In spite of the global decrease in dental caries in the past decades, ECC has become a significant problem in many developing countries and also in a few indus-trialized nations. Saliva as a host factor can play an important role in the process of den-tal caries. Objective: The aim of this study was ...

BACKGROUND One of the causative factors in development of dental caries is microorganisms. Two species of Mutans streptococci including Streptococcus mutans and Streptococcus sobrinus are associated with dental caries in human beings. The aim of this study was to investigate the frequency of S. mutans and S. sobrinus in saliva of children with different caries activity and ability to form biofi...