1/15. Carbamide peroxide whitening of nonvital single discolored teeth: case reports.patients who present with a single discolored tooth represent a significant restorative challenge. These case reports describe an economic and conservative treatment option for these patients. The situations presented demonstrate techniques for bleaching with carbamide peroxide in a traditional nightguard or with an inside-outside technique to achieve acceptable esthetic results on isolated nonvital discolored teeth. Although these techniques may not be effective in all cases, they do not compromise or eliminate any future treatment options.- - - - - - - - - - ranking = 1keywords = white (Clic here for more details about this article) |
2/15. Whitening of endodontically untreated calcified anterior teeth.Definitive treatment for whitening endodontically untreated anterior teeth with dystrophic calcification is provided by removing the coronal sclerotic dentin and utilizing internal and external bleaching as necessary.- - - - - - - - - - ranking = 0.25keywords = white (Clic here for more details about this article) |
3/15. Bleaching primary teeth with 10% carbamide peroxide.Bleaching teeth with 10% carbamide peroxide in a custom-fitted tray has been popular for more than 10 years. However, primary teeth are seldom considered for bleaching due to the need for compliance by the child and the natural whiteness of the primary teeth. This report describes an indication-teeth darkened from trauma-as well as the technique and outcome for bleaching discolored primary teeth.- - - - - - - - - - ranking = 0.25keywords = white (Clic here for more details about this article) |
4/15. Greening of the tooth-amalgam interface during extended 10% carbamide peroxide bleaching of tetracycline-stained teeth: a case report.At-home bleaching with 10% carbamide peroxide in a custom-fitted tray has been shown to have some minor effects on certain brands of amalgam, pertaining to mercury release, but generally, effects on amalgam are not considered clinically significant. However, in this case report, a greening of the tooth structure in certain areas immediately adjacent to amalgam restorations in the maxillary and mandibular first molars occurred during tooth whitening. Other amalgam restorations in mandibular and maxillary second molars in the same mouth did not demonstrate any green discoloration of the teeth. Upon removal of the affected amalgam restorations, recurrent decay was present in the areas of tooth greening but not in other areas adjacent to the restoration. The teeth were restored with posterior composite restorations. Whether the green discoloration was a result of some loss of material from a particular brand of amalgam, indicating leakage, or indicative of original or recurrent tooth decay is unclear in this single-patient situation. Other patients in the same study did not demonstrate this occurrence. dentists should be ready to replace amalgam restorations should this green discoloration in adjacent tooth structure occur during bleaching, in case decay is present. CLINICAL SIGNIFICANCE: The unusual discoloration cited suggests that amalgam restorations in potentially esthetic areas, including the lingual of anterior teeth, should be replaced prior to bleaching, to avoid the problem of difficult stain removal or translucency allowing restoration visibility following bleaching.- - - - - - - - - - ranking = 0.25keywords = white (Clic here for more details about this article) |
5/15. Effectiveness of dentist-prescribed, home-applied tooth whitening. A meta analysis.INTRODUCTION: Common clinical experience suggests that tooth whitening agents are 100% effective. This study uses meta-analysis of data from published randomized controlled clinical trials to determine the efficacy of tooth whitening agents. methods: A medline search strategy was developed and implemented to systematically identify clinical trials on dentist-prescribed, home-applied tooth whitening agents, using 10% carbamide peroxide, published between 1989-1999. Inclusion criteria (e.g., in English, human clinical trials) and exclusion criteria (e.g., not placebo controlled) were established and clinical trials that met these criteria were critically appraised for validity and clinical applicability. meta-analysis was then used to quantitatively integrate the findings. RESULTS: Seven studies were identified that met the inclusion and validity criteria. These studies indicated that: Whitening results in a significant mean change of 6 4 shade guide units (p < 0.01), while the placebo control group exhibited little change (0.7 0.6, p > 0.05). 93% of the bleached patients exhibited 2 shade guide unit change, while 20% of the placebo control group exhibited this change. The brand of bleaching agent had a significant effect on tooth whitening, but the daily application time and duration of treatment did not. Whitening is maintained for 6 months for 1/2 of the people treated. Neither gingival indices nor plaque indices were adversely or favorably affected by bleaching. CLINICAL APPLICABILITY: The data from the reviewed studies indicate that rather than being 100% effective, on average: 73% (93% for bleached group minus 20% placebo group) of people who whiten their teeth will exhibit a whitening that is 2 shade guide units greater than the placebo. 20% of the people who use dentist-prescribed, home-applied bleaching will achieve a mean whitening effect of 5 shade guide units. Re-treatment for 50% of people may be necessary to maintain this effect longer than 6 months. The methods used here are internet applicable for other clinical topics.- - - - - - - - - - ranking = 2.75keywords = white (Clic here for more details about this article) |
6/15. 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.- - - - - - - - - - ranking = 0.25keywords = white (Clic here for more details about this article) |
7/15. Minimally invasive aesthetic treatment for discolored and fractured teeth in adolescents: a case report.This article describes a minimally invasive treatment of a young patient who presented with generalized enamel white spots and hypocalcification in combination with a severely fractured central incisor. enamel microabrasion technique was used to remove discolored and/or pitted enamel. A direct composite restoration was then placed according to the anatomical layering technique. These procedures are described step-by-step herein. The advantages of microabrasion and composite restoration over conventional prosthetic procedures are also discussed.- - - - - - - - - - ranking = 0.25keywords = white (Clic here for more details about this article) |
8/15. Integration of composite and ceramic restorations in tetracycline-bleached teeth: a case report.The success of an esthetic rehabilitation depends on the understanding of the patient's need and expectation. The management of patients with moderate to severe tetracycline-stained teeth is very challenging. Tooth whitening may be a valid alternative to more aggressive treatments; however, patients should be aware of the limitations of tooth whitening therapy. Clinicians may select differing treatment plans; tooth whitening can improve intrinsic discoloration in a way so that no further treatment is required. Once tooth whitening is completed, direct or indirect restorative procedures may be afforded to match the existing restoration with the bleached tooth structure. This article describes a conservative clinical approach to rehabilitate the smile of a patient with moderate to severe tetracycline-stained teeth using a combination of tooth whitening and direct composite and indirect porcelain restorations in the maxillary anterior segment. CLINICAL SIGNIFICANCE: The combination of tooth whitening and adhesive restorations allows clinicians a significantly more conservative approach to intrinsically stained teeth; tooth preparation for porcelain veneers and porcelain-fused-to-metal and full-ceramic crowns can be restricted to conditions in which persistent tooth discoloration or significant loss of both dentin and enamel exists.- - - - - - - - - - ranking = 1.5keywords = white (Clic here for more details about this article) |
9/15. Macroabrasion in pediatric dentistry.One of the most frequent reasons for seeking dental care is discolored anterior teeth. Macroabrasion is a technique used for the removal of localized superficial white spots and other surface stains. This article has compiled three case reports with relevant clinical photographs of discolored teeth where the treatment regimen included macroabrasion alone as well as macro-abrasion in combination with anterior composite restorations.- - - - - - - - - - ranking = 0.25keywords = white (Clic here for more details about this article) |
10/15. Creating the appearance of white enamel dysmineralization with bonded resins.In special cases, white enamel discoloration can be stimulated using bonded resin materials. This paper describes a method of using bright white visible light-polymerized resin sealant material as an enamel bonding agent, which is overlayed with composite resin to enhance wear resistance of the restoration.- - - - - - - - - - ranking = 1.5keywords = white (Clic here for more details about this article) |
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