AIM To develop and evaluate a reproducible intrinsic discolouration model in vitro, based on tea, which would allow the effectiveness of bleaching to be evaluated. METHOD The crown portions of extracted human third molars were sectioned bucco-lingually in half. Colour assessments were made at baseline, post staining and post whitening using a standard clinical shade guide (SG), a shade vision...

Eleven children, eight females and three males, ranging in age from 17 months to seven years, eight months, with surgically corrected biliary atresia, were examined for oral problems. Four children had green staining of both p~’mary teeth and gingival tissues. Five children had abnormally large pulp chambers, and four had delayed primary tooth eruption. A significant relationship between primar...

Context: Dental Bleaching or tooth whitening represents a conservative cosmetic approach even for children and adolescents, whom treatment may be readily accomplished without permanent alteration to the enamel surface thus limiting need lifelong maintenance. Aims: The aim of this study was compare efficacy banana peel orange as teeth agents in deciduous dentition. Methods Material: Twenty extra...

Human teeth display various colors under natural light. Dental restorations, such as zirconia crowns, are generally used to rehabilitate the oral function of patients with tooth loss due trauma or falls. However, significant improvements in color and translucency required meet clinical needs for dental restoration. In past, a large amount ceramic powder has been improve appearance zirconia. int...

Dental plaque is a well known etiologic factor for gingivitis. Recently, herbal extracts are a matter of scientific interest to inhibit plaque accumulation on teeth. The purpose of this study was to evaluate the effects of German Chamomile (GC) mouth wash on plaque and gingival indices. Twenty five gingivitis patients (15 female and 10 male, mean age 27±7.76 years) participated in this contr...

This study was performed to examine the success of a conservative cavity preparation using the principle of "sealing for prevention" rather than "extension for prevention." A total of 332 restorations were placed in 243 permanent molars in 114 children aged 6-14 with a mean age of 8 years. After 80 months, 104 restorations were examined for sealant retention, marginal staining, anatomic wear, m...

Introduction In addition to periodontal disease and chronic gingivostomatitis, tooth resorption (previously termed feline odontoclastic resorptive lesions, FORL) are among the most common and frustrating diagnostic findings in feline dentistry. Reported prevalence rates of tooth resorption range from about 30 to 70 %, depending on the composition of the population examined and on the diagnostic...

The dorsal raphe nucleus (DR), contains 60% serotonergic neurons, which appears to be involved in the control of endogenous pain sensation. MK-801, a non-competitive antagonist of N-methyl-D-aspartate receptors, inhibits spinal nociceptive neurons, however, little information is available about the effect of its administration on the DR. To evaluate the distribution of c-Fos and serotonin expre...