Cases reported "Fluorosis, Dental"

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1/3. Using microabrasive material to remove fluorosis stains.

    BACKGROUND: Increased public access to fluoride has decreased the prevalence of caries and increased the prevalence of fluorosis staining. This article provides a case report involving a conservative method of removing fluorosis stain, as well as describes an in vitro test of the method. CASE DESCRIPTION: A healthy man sought treatment at new york University College of dentistry for removal of severe, dark brown fluorosis staining on his anterior teeth. To remove the stain, the treating clinician used a microabrasive material, which leaves enamel intact, instead of a tooth-whitening agent, which requires removal of all affected enamel. methods: To demonstrate that enamel structure is not disturbed by the microabrasive material, the authors performed a study using scanning electron microscopy, or SEM. They viewed enamel structure under SEM at x1,000 magnification. They viewed untreated microabraded enamel and compared it with enamel that had been treated for 20 seconds with 37 percent phosphoric acid. RESULTS: An etch pattern was not discernible on the tooth treated with the microabrasive material. The enamel prisms remained intact and the cores were not exposed. CLINICAL IMPLICATIONS: Microabrasion removes intrinsic fluorosis stain effectively while protecting enamel. In this case, an enamel shade of brown not in the range of any tooth color shade guide was reduced.
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2/3. The effectiveness of a modified hydrochloric acid-quartz-pumice abrasion technique on fluorosis stains: a case report.

    Endemic dental fluorosis is a form of enamel hypoplasia characterized by moderate-to-severe staining of the tooth surface. Since 1916, numerous investigators have used hydrochloric acid alone on fluorosis stains. More recently, 18% hydrochloric acid-pumice microabrasion has been used to achieve color modification. The main disadvantage of this procedure is the high concentration and low viscosity of hydrochloric acid, which can cause damage to oral and dental tissues. To eliminate this problem, quartz particles can be mixed with the hydrochloric acid. The quartz particles prevent the hydrochloric acid from flowing uncontrollablely by altering it to a gel-like form. A modified 18% hydrochloric acid-quartz-pumice abrasion technique was used to remove fluorine stains from vital teeth in a teenager.
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3/3. A successful combination of conflicting approaches to diastema closure--a case report.

    The closure of anterior maxillary diastemas can be accomplished in several ways. A case is reported where treatment initially consisted of the provision of porcelain laminate veneer restorations, with an unsatisfactory result. Subsequently, the restorations were reduced drastically in width and reshaped. The tooth widths were calculated from tables of mean measurements. The spaces were closed by orthodontic treatment and the original restorations were retained, saving the patient considerable treatment.
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