Objective: To compare the accuracy of periapical radiography (PR) and cone-beam computed tomography (CBCT) for detection external apical root resorption (EARR) due to canal contamination. Material Methods: Dog’s teeth with experimentally induced contamination underwent or not treatment (n=62). True positives (TP), false (FP), true negatives (TN), (FN) in PR CBCT diagnoses were determined using ...

invasive cervical resorption is a condition that affects the root surface area below the epithelial attachment. multiple treatment modalities are advocated, involving exposure of the invasive defect, removal of the granulation tissue and sealing with various restorative materials. this report demonstrates conservative treatment of a patient presenting with peri-apical periodontitis in upper rig...

OBJECTIVE The aim of this study was to evaluate the influence of apical foramen widening on the healing of chronic periapical lesions in dogs' teeth after root canal filling with Sealer 26 or Endomethasone. STUDY DESIGN Forty root canals of dogs' teeth were used. After pulp extirpation, the canals were exposed to the oral cavity for 180 days for induction of periapical lesions, and then instr...

The association of internal root resorption (IRR) with dens invaginatus is an extremely rare finding, and its incidence may be underestimated, adding to the difficulty endodontic treatment. A 9-year-old boy was admitted complaints swelling pain. Radiological examination revealed closed apex Oehlers type II severe IRR, as well apical third two lateral perforation lesion. Calcium hydroxide applie...

Purpose: This in vitro study compared the effects of mineral trioxide aggregate (MTA), BioAggregate and calcium hydroxide on hydroxyl ion diffusion through dentinal tubules to root surfaces without cementum various levels. 
 Materials & Methods: The consisted 120 mature single-rooted mandibular premolar teeth. teeth were decoronated instrumented using Protaper Universal rotary files. T...

The apical third of most root canals shows some degree of curvature, which is important in cleaning/shaping and obturation during root canal treatment. The present study evaluated the effect of master cone size on the apical seal of severely curved root canals. Thirty-eight mesial roots of human mandibular first molars were prepared using the crown-down technique. All samples were mature roots ...

A common question about root resorption is raised in orthodontic practice: What is more important, the intensity of force or its distribution along the root, periodontal and alveolar structures? Diffuse distribution of forces applied to periodontal tissues during tooth movement tends not to promote neither extensive areas of cell matrix hyalinization nor significant death of cementoblasts that ...

Root resorption is an unwanted effect of orthodontic tooth movement. Analysis of dentine proteins in gingival crevicular fluid (GCF) is a potentially safer method of quantifying root resorption compared with conventional radiographic methods. This study aimed to identify and quantify the dentine-specific matrix protein, dentine sialoprotein (DSP), released into GCF during physiological root res...

A retrospective study of 26 patients with maxillary incisor root resorption relating to the presence of an ectopic canine was undertaken from case records. The group consisted of nine male and 17 female patients with a mean age of 12.5 years. There was a total of 35 resorbed teeth, 26 lateral and nine central incisors, and these were related to 32 ectopic canines. The resorption tended to be ex...

INTRODUCTION The purpose of this study was to compare, in a split mouth design, the external apical root resorption (EARR) associated with orthodontic treatment in root-filled maxillary incisors and their contralateral teeth with vital pulps. METHODOLOGY The study sample consisted of 38 patients (14 males and 24 females), who had one root-filled incisor before completion of multiband/bracket ...