INTRODUCTION The aim of this study was to evaluate the amount of dentine removed after canal preparation using stainless steel (SS) hand instruments or rotary ProFile instruments. MATERIALS AND METHODS Thirty-six extracted human teeth with root canal curvatures less than 30º were embedded in clear polyester resin. The roots were cut horizontally at apical 2, 4 and 7 mm. Dentin thickness was m...

This study evaluated the anatomical relationship between posterior teeth root apices and maxillary sinus floor (MSF) on 202 cone beam computed tomography (CBCT) exams. The distance between the root apices and the MSF, as well as the MSF thickness of the cortical bone closest to root apices and furcation regions were measured. The vertical and horizontal relationships of the MSF with the molar r...

AIM To measure the root canal area and the reduction of the mesial and buccal/lingual wall thickness at the level of the coronal interference in mesial roots of mandibular molars after instrumentation with a crown-down or a simultaneous root canal preparation technique. METHODOLOGY Twenty mesial roots of first mandibular molars with a moderate root canal curvature were embedded in resin and s...

statement of problem: mineral trioxid aggregate (mta) cement is widely used for root-end filling, pulp capping, perforation repair and other treatments in endodontics. investigations have shown similar physical and chemical properties for portland cement (type i), root mta and proroot mta. purpose: the aim of this in vivo study was to evaluate the reaction of dog canine pulp after pulp capping ...

AIM The study aimed to investigate the proximity of maxillary posterior teeth roots to maxillary sinus and measure the distance of maxillary posterior teeth roots and the sinus floor as well as the thickness of bone between the roots and alveolar cortical bone using Denta scan®. MATERIALS AND METHODS The study samples include Denta scan® images of fifty patients with normally erupted bilatera...

COMPARATIVE ANALYSIS OF WAVEONE AND LIGHTSPEED LSX FOR THE RESIDUAL DENTIN THICKNESS OF THE BIFURCATED MAXILLARY FIRST PREMOLAR BUCCAL ROOT UTILIZING LIMITED FIELD CONE BEAM COMPUTED TOMOGRAPHY By Manpreet Singh Sarao, BDS, DDS A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Dentistry at Virginia Commonwealth University. Virginia Commonwealth...

Objective: To determine increase in root(s) length and thickness and closure of apical foramen in patients undergoing revascularization of immature, permanent, necrotic teeth Material and Methods: This study was conducted at outpatient department of Operative Dentistry, Pakistan institute of medical sciences (PIMS), Islamabad, from 22 January 2011 to 22 January 2013. All the patients were asses...

OBJECTIVES This study aimed to assess the radicular wall thickness in mandibular incisors with two canals and find the maximum and minimum thickness to prevent root canal treatment (RCT) procedural errors. MATERIALS AND METHODS A total of 160 extracted mandibular incisors were selected and radiographed; out of which, 55 had two canals. Three parallel transverse sections were made in each toot...

The objective of this study was to test the hypothesis that root of maguey (Agave salmiana Otto ex Salm-Dyck) seedlings reacts during the first 24 h to low substrate water potential (PsiW), by anatomical modifications. Three-4 cm root length seedlings were planted in vermiculite for 24 h at PsiW between -0.03 and -2.35 MPa. Root dimensions, proline content and anatomy were evaluated. Substrate ...