A. C. Civelek

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A new framework for the precise segmentation of lung tissues from Computed Tomography (CT) is proposed. The CT images, Gaussian Scale Space (GSS) data generation using Gaussian Kernels (GKs), and desired maps of regions (lung and the other chest tissues) are described by a joint Markov-Gibbs Random Field Model (MGRF) of independent image signals and(More)
OBJECTIVES The aim of this study was to assess the feasibility of the resin-modified glass ionomer (RMGI) material in atraumatic restorative treatment (ART) approach and compare RMGI with the high-strength traditional glass ionomer cement (GIC) in permanent teeth with one or more surface-carious cavities. MATERIALS AND METHODS This study was conducted in(More)
Purpose. The purpose of this study was to compare the plaque removal effectiveness of a battery powered and manual toothbrush on plaque removal. Materials and Methods. 60 patients were attended in this study. These patients were divided into two groups, using rotary or manual toothbrush twice a day. Plaque was scored after brushing at the baseline of the(More)
The purpose of this study was to determine the flexural strength (FS), flexural modulus (FM), depth of cure (DC), polymerization shrinkage (PS), and microhardness (VH) of the following composites: Two packable composites--Filtek P-60 and Solitaire 2; One ion-releasing composite--riston AT; and Two hybrid composites--Charisma and Filtek Z-250. Data of the(More)
Objectives. The purpose of this study was to determine the effects of three different fluoride mouth rinses (226, 450 and 900 ppm) in comparison to non-fluoride application group (control group) on demineralized enamel under in vitro pH-cycling conditions. Methods. Initial demineralization was obtained by acetic acid for 24 hours. After remineralization for(More)
This study determined the three-body abrasive wear resistance of two packable composites (P-60; Solitaire 2), an ion-releasing composite (Ariston AT), a hybrid composite (Tetric Ceram) and an ormocer (Admira). The study also looked at the correlation between wear resistance and hardness of the composites. Three-body wear testing was performed using an ACTA(More)
This study investigated the polymerization shrinkage of restorative materials and microleakage in the proximal box of Class II restorations. Twenty caries free extracted human molars were prepared on the mesial and distal, making 40 slot cavities. Groups (n=10) were classified as: Group 1: Single bond/Filtek Z-250; Group 2: Single Bond/Filtek Flow/Filtek(More)
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