BACKGROUND There is little data regarding the effect of tooth whitening on microhardness of white spot lesions. This study was conducted to investigate the effect of home-bleaching and laser-assisted in-office bleaching on microhardness of demineralized enamel. MATERIAL AND METHODS Forty bovine incisors were selected and immersed in a demineralizing solution for 12 weeks to induce white spot ...

An ion-sensitive field-effect transistor was used to monitor changes in pH following exposure of plaque samples to sucrose. A total of 9O plaque samples were removed from sound enamel, incipient white spot lesions, or cavities of 84 children and placed in a microholder. Sucrose(5% solution) was placed onto the plaque sample and the pH followed for 30 rain by inserting the microelectrode into th...

Management of white spot lesions has always been an important issue in modern dentistry. Many preventive measures have been suggested recently to slow the demineralization process and allow better remineralization of enamel as soon as white spot lesions begin to appear and just before proceeding into the cavitated lesion stage. A new technology in dealing with such lesions is known as “Resin In...

Enamel decalcifications in the form of white spot lesions is a common negative sequelae of orthodontic treatment in the absence of proper oral hygiene.They appear as small lines along the bracket periphery and in a few patients as large decalcifications with or without cavitations. The presence of white spot lesions after removal of orthodontic appliances is a discouraging finding to a specialt...

Plaque control during the course of orthodontic treatment is not an easy task, and dental caries are not an unlikely complication. We examined the possibility of controlling dental caries with Nd-YAG laser irradiation in orthodontic patients. As a preliminary experiment, we used the Nd-YAG laser to irradiate an extracted tooth and then left it to soak in lactic acid. The decay of the tooth was ...

A number of treatments have been devised to improve the appearance of fluorosed enamel. However, many of these have been empirically based, and the success of the various treatment regimens have not been quantitated. In this study, the relative whiteness of normal, mildly fluorosed, moderately fluorosed, and carious white-spot lesions on extracted teeth was quantitated by light reflectance usin...

UNLABELLED White spot lesions (WSL) associated with fixed orthodontic appliances are a common adverse effect of orthodontic treatment and represent a significant challenge to achieving esthetic excellence. The purpose of this article is to review the current evidence regarding diagnosis, risk assessment, prevention, intratreatment management, and postorthodontic treatment of WSL, and to provide...

The most common negative effect of orthodontic treatment with fixed appliances is the development of incipient carious lesions around brackets. The objectives of this chapter are to present some of the results of two studies aiming: 1) to evaluate patients treated with comprehensive orthodontics to determine the incidence of new carious lesions during treatment; and 2) to investigate the potent...

OBJECTIVE The purpose of this in vitro study was to examine the effects of fluoridated, casein phosphopeptide.amorphous calcium phosphate complex (CPP-ACP)-containing, and functionalized β-tricalcium phosphate (fTCP)-containing toothpastes on remineralization of white spot lesions (WSLs) by using Quantitative light-induced fluorescence (QLF-D) Biluminator™ 2. METHODS Forty-eight premolars, ex...

The formation of white spot lesions, or enamel demineralization, around fixed orthodontic attachments is a common complication during and following fixed orthodontic treatment, which marks the result of a successfully completed case. This article is a contemporary review of the risk factors and preventive methods of these orthodontics scars. Preventive programmes must be emphasized to all ortho...