10 research outputs found

    ATLAS detector and physics performance: Technical Design Report, 1

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    Clinical performance of a combined approach for the esthetic management of fluorosed teeth: Three-year results

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    Objective: The long‑term clinical performance of combined therapy including enamel microabrasion and vital bleaching is debatable due to the abrasion of outer enamel surface. The aim of this longitudinal cohort study was to evaluate the 3‑year clinical performance of enamel microabrasion in combination with vital tooth bleaching for the esthetic management of fluorosed teeth. Materials and Methods: Fifteen patients with 176 fluorosed incisors and canines were included in this study. All the teeth were treated with enamel microabrasion (Opalustre, Ultradent), and at‑home bleaching technique (10% Opalescence PF, Ultradent). Fluorosed teeth were evaluated at baseline, after microabrasion, after combined therapy, and at 3‑year follow‑up in terms of esthetic criteria (esthetic appearance, brown stains, and opaque white areas), side effects, and patient satisfaction using visual analog scales. The data were statistically analyzed (α = 0.05).Results: Fluorosed teeth revealed significantly better esthetic appearance after microabrasion and combined therapy and at 3‑year follow‑up compared to those at baseline (P < 0.05). There was a significant relapse in the esthetic appearance and brown stains at 3‑year follow‑up (P < 0.05).Conclusions: The combined therapy was effective in the esthetic management of fluorosed teeth. However, a significant relapse was observed in the esthetic appearance and brown stains of these patients after 3 years, which also reduced patient satisfaction.Keywords: Clinical trial, dental fluorosis, enamel microabrasion, relapse in bleaching, vital bleachin

    Efficiency of caries risk assessment in young adults using cariogram

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    Objective: The aims of this study were to: (1) evaluate the caries risk in young adults using Cariogram and (2) compare the efficiency of Cariogram with the regression risk models created using the same variables in Cariogram by examining the actual caries progression over a 2-year period. Methods: This study included 100 subjects that were either twenty or twenty-one years-old. Data on general health, diet, oral hygiene and use of fluoride were obtained. Saliva analyses were performed, including mutans streptococci and lactobacilli counts, secretion rate and buffer capacity. DMFT and DMFS values were calculated by clinical examinations and radiographs. The participants were divided into 5 groups according to their Cariogram caries risk scores at baseline. Re-examination for caries was done after 2-years. The data were analyzed using Kruskall Wallis, Mann Whitney-U, and logistic regression analyses. Results: Diet frequency, plaque amount and secretion rate were significantly associated with caries increment (P<.05). Cariogram and the regression risk models explained the caries formation at a higher rate than single-variables. However, the regression risk model developed by diet frequency, plaque amount and secretion rate explained the caries formation similar to Cariogram, while the other regression model developed by all variables used in Cariogram explained the caries formation at a higher rate than this computer program. Conclusions: Cariogram is effective and can be used for caries risk assessment instead of single variables; however, it is possible to develop simplier models with regression analyses to determine caries risk

    ATLAS detector and physics performance: Technical Design Report, 2

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