BACKGROUND To determine the prevalence of periapical lesions in root canal-treated teeth in a rural, male adult, Turkish population and to investigate the influence of the quality of root canal fillings on prevalence of periapical lesions. METHODS The sample for this cross-sectional study consisted of 552 adult male patients, 18-32 years of age, presenting consecutively as new patients seekin...

introduction: retreatment of endodontically treated teeth is a challenge that requires complete removal of the previous filling material. several techniques are indicated for this procedure. the present review tries to identify the most efficient method for extirpation of resilon (rs) root fillings and to compare the speed and efficacy of rs and gutta-percha (gp) root filling removal. methods a...

OBJECTIVE This study aimed to assess the quality of root fillings, coronal restorations, complications of all root-filled teeth and their association with apical periodontitis (AP) detected by cone-beam computed tomography (CBCT) images from an adult Turkish subpopulation. MATERIAL AND METHODS The sample for this study consisted of 242 patients (aging from 15 to 72 years) with 522 endodontica...

ABSTRACT Objective: The purpose of the present in vitro study was to evaluate efficiency three different instruments root canals artificial primary molars as well quality fillings. Methods: Sixty were divided into groups 20 teeth. Each group submitted a technique: Group 1 - conventional manual technique using Kerr files; 2 with nickel-titanium 3 NiTi rotary technique. filled calcium hydroxide p...

HEALTH POLITICAL BACKGROUND Caries is one of the most prevalent diseases worldwide. For (direct) restaurations of carious lesions, tooth-coloured composite materials are increasingly used. The compulsory health insurance pays for composite fillings in front teeth; in posterior teeth, patients have to bear the extra cost. SCIENTIFIC BACKGROUND Amalgam is an alloy of mercury and other metals an...

AIMS To evaluate the impact of the quality of coronal restorations scored on a clinical and radiographic basis and the quality of root fillings on periapical health. METHODOLOGY Periapical radiographs were taken of 745 root-filled teeth, randomly selected from patients attending the Ghent University Dental School. The teeth had not received restorative treatment in the previous year. The coro...

BACKGROUND Endodontic treatment, involves removal of the dental pulp and its replacement by a root canal filling. Restoration of root filled teeth can be challenging due to structural differences between vital and non-vital root filled teeth. Direct restoration involves placement of a restorative material e.g. amalgam or composite directly into the tooth. Indirect restorations consist of cast m...

It was proved by Rubey that the number of fillings with zeros and ones of a given moon polyomino that do not contain a northeast chain of size k depends only on the set of columns of the polyomino, but not the shape of the polyomino. Rubey’s proof is an adaption of jeu de taquin and promotion for arbitrary fillings of moon polyominoes. In this paper we present a bijective proof for this result ...