Abstract Introduction: This study aimed to determine the prevalence of dental caries and plaque in patients undergoing removable orthodontic treatment.  Materials and Methods: In this cross-sectional study, 57 patients were selected and examined for dental caries (clinically and radiographically) and plaque (O’Leary Index) on permanent and primary teeth. Data were analyzed using chi-square an...

conclusions in spite of what the parents believe, iron supplements not only do not cause dental carries but also they have preventive and inhibitory effects on them. furthermore, it is highly recommended that supplements containing both iron and zinc elements should be preferred over supplements containing only iron elements. materials and methods the antimicrobial effects of six different type...

introduction: permanent first molar is the most important unit in the chewing system. ear-ly loss of first molars can significantly reduce chewing efficiency, increase overbite, lead to premature eruption of the permanent second and third molars, and displacement of adjacent teeth. the purpose of this study was to determine the associated factors of permanent first molar caries in 7-9 years old...

objective bacterial adhesion is governed by specific and nonspecific interactions such as hydrophobicity. hydrophobic interactions play a role in the adherence of microorganisms to a wide variety of surfaces and facilitate biofilm formation due to bacterial adhesion. in this article the relation between cell surface hydrophobicity and antibiotic resistance was studied. materials and methods we ...

Dental decay is one of the most prevalent chronic diseases worldwide. A variety of factors, including microbial, genetic, immunological, behavioral and environmental, interact to contribute to dental caries onset and development. Previous studies focused on the microbial basis for dental caries have identified species associated with both dental health and disease. The purpose of the current st...

The ecological plaque hypothesis for the aetiopathogenesis of caries implies a microbial shift towards a more acidogenic and aciduric dental plaque microflora, due to a frequent carbohydrate intake. Certain plaque bacteria exhibit metabolic activity, at a low pH. A correlation exists between the increased numbers of some aciduric bacterial species, e.g. mutans streptococci and lactobacilli, and...

OBJECTIVE Urease enzymes produced by oral bacteria generate ammonia, which can have a significant impact on the oral ecology and, consequently, on oral health. To evaluate the relationship of urease with dental plaque microbial profiles in children as it relates to dental caries, and to identify the main contributors to this activity. METHODS 82 supragingival plaque samples were collected fro...

Dental caries remains a significant public health problem and is considered pandemic worldwide. The prediction of dental caries based on profiling of microbial species involved in disease and equally important, the identification of species conferring dental health has proven more difficult than anticipated due to high interpersonal and geographical variability of dental plaque microbiota. We h...

A study of dental plaque was first documented in the literature of the 17th century. It has been described as a biofilm composed of bacterial populations living in a plaque matrix. The plaque development starts short time after a tooth surface is cleaned and covered by salivary proteins and glycoproteins conditioning film. Mutans streptococci was described as the most important bacteria related...