نتایج جستجو برای: dentinal walls
تعداد نتایج: 39110 فیلتر نتایج به سال:
Background: Prompt L-Pop is a self-etching dentin adhesive, which is recommended to use with both compomers and composite resins. The aims of this investigation were to determine and compare the microleakage, shear bond strength, and shear push out strength of composite and compomer to dentin with application of Prompt L-Pop as adhesive system. Methods: After application of Prompt L-Pop on the ...
Objective: To evaluate the effect of different irradiation times on the occlusion of dentinal tubules when using Nd:YAG laser. Background data: Dentin hypersensitivity is a frequent problem that has limited treatment success despite many chemical and physical therapies. Methods: Four coronal dentin disks 2 mm thick were cut with a low-speed diamond saw from four freshly extracted intact first m...
INTRODUCTION The purpose of a desensitizing agent is a permanent coating or filling of dentin surface. Morphological analysis in vitro of this treated surface is essential to understand the interaction between desensitizing agent and hypersensitive dentin. The aim was to evaluate the morphology of four dentin surface treated with desensitizing agents. METHODS This was an in vitro laboratory s...
BACKGROUND Ultrasonic irrigation has been proved for its remarkable cleaning efficiency in the field of endodontics. But its role in endodontic re-treatment has been understated. There is not much data available to understand the effect of ultrasonic irrigation for the evaluation of cleanliness of dentinal tubules when it is used with or without chloroform, a gutta percha solvent during endodon...
UNLABELLED There are several methods for identifying carious dentinal tissue aiming to avoid removal of healthy dentinal tissue. OBJECTIVES The purpose of this study was to test different methods for the detection of carious dentinal tissue regarding the amount of carious tissue removed and the remaining dentin microhardness after caries removal. MATERIAL AND METHODS The dentin surfaces of ...
introduction: this study was carried out to evaluate the bacterial leakage of root canal fillings when cavity varnish containing 5% fluoride (duraflur) was used as root canal sealer. methods and materials: root canals of 88 straight single-rooted teeth were prepared. eighty teeth were randomly divided into 3 experimental groups ( n =20) and two positive and negative control groups of ten each. ...
background and aims. the aim of the present study was to compare 1.3% sodium hypochlorite (naocl) in mtad (mixture of tetracycline isomer, acid, and detergent) for the removal of the smear layer and induction of canal erosion. materials and methods. 38 maxillary incisors were divided in three experimental groups of 10 and two positive and negative control groups of each 4 teeth, and prepared us...
Extra oral comparison of smear layer removal from root canals when using phosphoric acid and RCprep–NaOCL: A SEM study Dr. M. Zare Jahromi * - Dr. MR. Malekipour ** - Dr. F. Sobhi *** *Assistant Professor of Endodontics Dept., Faculty of Dentistry, Khorasgan Islamic Azad University. **Assistant Professor of Operative Dentistry Dept., Faculty of Dentistry, Khorasgan Islamic Azad University. ***D...
Objective. To evaluate through FE-SEM the cleanliness and dentinal alterations promoted by different methods of dental sample preparation. Methods. Twenty-five human single-rooted teeth were used. The teeth were cleaned and autoclaved in wet medium and randomly divided into 5 groups (n = 5), according to the preparation methods employed-control group: no solutions applied; group 1: cement remov...
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