The prevalence and severity of non-carious cervical lesions in a group of patients attending a university hospital in Trinidad.
ABSTRACT Non-carious cervical lesions (NCCLs) are often encountered in clinical practice and their aetiology attributed to toothbrush abrasion, erosion and tooth flexure. This paper aims to determine the prevalence and severity of NCCLs in a sample of patients attending a university clinic in Trinidad and to investigate the relationship with medical and dental histories, oral hygiene practices, dietary habits and occlusion. Data were collected via a questionnaire and clinical examination. Odds ratios were used to determine the association of the presence of lesions and the factors examined. One hundred and fifty-six patients with a mean age of 40.6 years were examined of whom 62.2% had one or more NCCLs. Forty five per cent of the lesions were sensitive to compressed air. Younger age groups had a significantly lower correlation with the presence of NCCLs than older age groups. Other significant factors included patients who reported heartburn, gastric reflux, headaches, bruxism, sensitive teeth and swimming or had a history of broken restorations in the last year. There was also significant correlation of NCCLs in patients who brushed more than once a day or used a medium or hard toothbrush. Patients with vegetarian diets and those who reported consuming citrus fruits, soft drinks, alcohol, yoghurt and vitamin C drinks were associated with the presence of lesions. Significant associations were also found in patients with group function, faceting, clicking joints or those who wore occlusal splints.
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ABSTRACT: Dentin hypersensitivity (DH) is a relatively common painful condition among dental problems. Although many studies have been performed regarding the diagnosis and treatment of DH, dental practitioners are still confused about the definite diagnosis and treatment.The use of lasers as a treatment for dentin hypersensitivity was first introduced in 1985.Laser treatment in dentin hypersensitivity is an interesting and controversial issue and many investigations have been done on its mechanism of action, advantages, and unclear points.The present literature review tries to go over the definition, diagnosis, etiology , predisposing factors, various laser types in the treatment of DH alone or in combination with topical desensitizing agents. Since a certain treatment has not yet introduced for dentin hypersensitivity, a combination of laser therapy and topical desensitizing factors ,can increase the success of the treatment compared with either treatments alone.
Article: Tooth brushing for oral prophylaxis[Show abstract] [Hide abstract]
ABSTRACT: Control of plaque and debris is essential for the prevention of inflammatory periodontal diseases and dental caries, because plaque is the primary etiological factor in the introduction and development of both of these infection-oriented diseases. Plaque removal with a toothbrush is the most frequently used method of oral hygiene. Powered toothbrushes were developed beginning in the 1960s and are now widely used in developed countries. The bristles of a toothbrush should be able to reach and clean efficiently most areas of the mouth, and recently the design of both manual and powered toothbrushes has focused on the ability to reach and clean interproximal tooth surfaces. An individual's tooth brushing behavior, including force, duration, motivation and motion, are also critical to tooth brushing efficacy. Dental floss and the type of toothpaste play additional important roles as auxiliary tools for oral prophylaxis. Dental professionals should help their care-receivers’ meet the requirements of oral hygiene to maintain their QOL. This article reviews these topics.Japanese Dental Science Review 08/2014; DOI:10.1016/j.jdsr.2014.04.001
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ABSTRACT: Background The present study aimed to analyze the effect of occlusal loading on premolars presenting different non-carious cervical lesions morphologies, restored (or not) with composite resin, using finite element analysis.Methods Three-dimensional virtual models of maxillary premolar were generated using CAD software. Three non-carious cervical lesions morphological types were simulated: wedged- shaped, saucer and mixed. All virtual models underwent three loading types (100N): vertical, buccal and palatine. The simulated non-carious cervical lesions morphologies were analyzed before and after restoration considering specific regions: occlusal wall, bottom wall and gingival wall. Data summarizing the stress distribution were obtained in MPa, using Maximum Principal Stress.ResultsPalatine load was responsible for providing the highest values of tensile stress accumulation on the buccal wall, 27.66 MPa and 25.76 MPa for mixed and wedged-shaped morphologies, respectively. The highest tensile value found among restored lesions was 5.9MPa for mixed type, similar to that found on sound model regardless of lesion morphology and occlusal loading.Conclusions The different non-carious cervical lesions morphologies had little effect on stress distribution patterns, whereas loading type and the presence of composite restoration influenced on the biomechanical behavior of maxillary premolar.This article is protected by copyright. All rights reserved.Australian Dental Journal 10/2014; DOI:10.1111/adj.12233 · 1.48 Impact Factor