This study examined changes in the dental arches that occur in untreated persons between late adolescence and the fifth or sixth decade of life. Longitudinal dental casts from 82 subjects were obtained as part of a recall study of subjects from the University of Michigan Elementary and Secondary School Growth Study. From the parent sample, three groups were identified. The untreated sample comp...

BACKGROUND This study evaluated the survival of the most prevalent oral bacteria and fungi (Staphylococcus aureus, Klebsiella pneumoniae, Escherichia coli, and Candida albicans) in dental casts, and compared changes in the amounts of these microorganisms at different time intervals to determine how long dental casts may pose threat to the health of dental personnel and patients. MATERIAL AND ...

Orthodontic force may lead to cell damage, circulatory disturbances, and vascular changes of the dental pulp, which make a hypoxic environment in pulp. In order to maintain the homeostasis of dental pulp, hypoxia will inevitably induce the defensive reaction. However, this is a complex process and is regulated by numerous factors. In this study, we established an experimental animal model of or...

The American Heart Association (AHA) has provided new guidelines for infective endocarditis prophylaxis in dentistry. In this paper, written for dentists, major changes in the updated recommendations which dentists should be aware have been discussed. These recommendations address the impact of oral hygiene and type of dental procedures on high-risk patients, risk of adverse reactions of antibi...

Discussion: A large part of both clinical and subclinical lesions found in our daily work are benign and correspond with fibrocystic changes (FCC). This entity is complex and part exhibit traits that define characteristically in MRI and diagnose correctly, but there is another small group of changes that can take the image aspect of cancer. From a complex case, we review the main aspects of the...

Because empathic patient interactions by dentists are associated with improved patient outcomes, self-reported declines in empathy during dental student training are a concern. This study examined differences in empathy in 178 dental students at the University of Toronto and the University of Western Ontario from years one through four using an anonymous self-report web-based survey in a cross-...

OBJECTIVES The aim of this meta-analytic and systematic quantitative approach is to examine the effects of behavioral interventions for dental anxiety and dental phobia. METHODS Eighty studies were identified where dental fear treatment with behavioral methods was evaluated. Thirty-eight of 80 met entry criteria and were included in a meta-analysis. RESULTS The calculated effect sizes (ESs)...

The premise of this paper is that the form and content of dental education do not reinforce each other. What results is suboptimal learning; dissatisfied students; difficulty generating excitement among the brightest to consider careers in dental education; erosion of dentists' self-identity as men and women of science; and doubts over whether dental schools can continue as the primary provider...

BACKGROUND The authors conducted a literature review to evaluate immediate transverse, anteroposterior, and vertical dental and skeletal changes produced by rapid maxillary expansion (RME). TYPES OF STUDIES REVIEWED The authors reviewed clinical trials that assessed immediate dental and/or skeletal changes after RME using cephalometric analysis, model casts or both. No surgical or other simul...