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https://www.readbyqxmd.com/read/28214018/assessment-of-root-canal-filling-removal-effectiveness-using-micro-computed-tomography-a-systematic-review
#1
REVIEW
Giampiero Rossi-Fedele, Hany Mohamed Aly Ahmed
INTRODUCTION: The removal of obturation materials from the root canal system is a primary objective in root canal retreatment procedures. This systematic review aims to discuss the effectiveness of different instrumentation procedures in removing root-canal filling materials assessed by micro-computed tomography. METHODS: An electronic search in PubMed and major endodontic journals was conducted using appropriate key words to identify investigations that examined the effectiveness of obturation material removal assessed by micro-computed tomography...
February 14, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28210445/evaluation-of-conventional-protaper-hand-and-protaper-rotary-instrumentation-system-for-apical-extrusion-of-debris-irrigants-and-bacteria-an-in-vitro-randomized-trial
#2
Pinky Kalra, Arathi Rao, Ethel Suman, Ramya Shenoy, Baranya-Shrikrishna Suprabha
BACKGROUND: Endodontic instrumentation carries the risk of over extrusion of debris and bacteria. The technique used and the type of instrumentation influences this risk. AIM: The purpose of this study was to evaluate and compare the K-file, ProTaper hand and ProTaper rotary instrumentation systems for the amount of apically extruded debris, irrigant solution and intracanal bacteria. DESIGN: Experimental single blinded randomized type of in vitro study with sample of 30 single rooted teeth...
February 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28203014/-influence-of-surface-treatment-with-sodium-hypochlorite-solution-on-dentin-bond-strength
#3
Y Wang, Y H Liang
OBJECTIVE: To evaluate the influence of sodium hypochlorite (NaOCl) solution used during root canal therapy on dentin bond strength. METHODS: In the study, 15 freshly extracted human third molars with complete dental crowns, caries and filling-free were selected. The occlusal enamel was removed perpendicular to the long axis of the tooth to expose middle flat surfaces of sound dentin. The occlusal dentin surfaces were then polished using 600-grit silicon papers for 1 min and rinsed with deionized water for 1 min...
February 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28198973/influence-of-niti-alloy-on-the-root-canal-shaping-capabilities-of-the-protaper-universal-and-protaper-gold-rotary-instrument-systems
#4
Jussaro Alves Duque, Rodrigo Ricci Vivan, Bruno Cavalini Cavenago, Pablo Andrés Amoroso-Silva, Ricardo Affonso Bernardes, Bruno Carvalho de Vasconcelos, Marco Antonio Hungaro Duarte
Objective: This study aimed to evaluate the influence of the NiTi wire in Conventional NiTi (ProTaper Universal PTU) and Controlled Memory NiTi (ProTaper Gold PTG) instrument systems on the quality of root canal preparation. Material and Methods: Twelve mandibular molars with separate mesial canals were scanned using a high-definition microcomputed tomography system. The PTU and PTG instruments were used to shape twelve mesial canals each. The canals were scanned after preparation with F2 and F3 instruments of the PTU and PTG systems...
January 2017: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/28196330/decellularized-human-dental-pulp-as-a-scaffold-for-regenerative-endodontics
#5
J S Song, K Takimoto, M Jeon, J Vadakekalam, N B Ruparel, A Diogenes
Teeth undergo postnatal organogenesis relatively late in life and only complete full maturation a few years after the crown first erupts in the oral cavity. At this stage, development can be arrested if the tooth organ is damaged by either trauma or caries. Regenerative endodontic procedures (REPs) are a treatment alternative to conventional root canal treatment for immature teeth. These procedures rely on the transfer of apically positioned stem cells, including stem cells of the apical papilla (SCAP), into the root canal system...
February 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28196285/morphological-evaluation-of-maxillary-second-molars-with-fused-roots-a-micro-ct-study
#6
R Ordinola-Zapata, J N R Martins, C M Bramante, M H Villas-Boas, M H Duarte, M A Versiani
AIM: To evaluate the internal and external morphologies of fused-rooted maxillary second molars by means of micro-computed tomography (micro-CT) analysis. METHODOLOGY: One-hundred fused-rooted maxillary second molars from a Brazilian subpopulation were divided into six groups according to the root morphology. The samples were scanned at a resolution of 19.6 μm, and evaluated with regards to the external morphology of the roots, the root canal configuration, the percentage frequency of C-shaped canals and isthmuses, as well as, the morphology of the root canal system at 1, 2 and 3 mm from the anatomic apex of the fused roots...
February 14, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28194366/maxillary-first-molar-with-7-root-canals-diagnosed-using-cone-beam-computed-tomography
#7
Evaldo Rodrigues, Antônio Henrique Braitt, Bruno Ferraz Galvão, Emmanuel João Nogueira Leal da Silva
Root canal anatomy is complex, and the recognition of anatomic variations could be a challenge for clinicians. This case report describes the importance of cone beam computed tomographyic (CBCT) imaging during endodontic treatment. A 23 year old woman was referred by her general dental practitioner with the chief complaint of spontaneous pain in her right posterior maxilla. From the clinical and radiographic findings, a diagnosis of symptomatic irreversible pulpitis was made and endodontic treatment was suggested to the patient...
February 2017: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/28186862/comparison-of-conventional-syringe-canalbrush-endoactivator-photon-induced-photoacoustic-streaming-and-manual-instrumentation-in-removing-orange-brown-precipitate-an-in-vitro-study
#8
Mehmet Burak Guneser, Asiye Nur Dincer, Dilara Arslan
OBJECTIVE: The aim of this in vitro study was to compare the various techniques for removing precipitate formed after irrigation with sodium hypochlorite (NaOCl) and chlorhexidine (CHX). BACKGROUND DATA: It is still unclear whether different irrigant activation systems can effectively remove precipitate that is firmly attached to the root canal walls. METHODS: Eighty-two extracted single-rooted human teeth were instrumented by using the ProTaper rotary system...
February 10, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28186464/evaluation-of-antimicrobial-photodynamic-therapy-using-indocyanine-green-and-near-infrared-diode-laser-against-enterococcus-faecalis-in-infected-human-root-canals
#9
Charis Beltes, Nikolaos Economides, Hercules Sakkas, Chrissanthy Papadopoulou, Theodoros Lambrianidis
OBJECTIVE: Photodynamic therapy (PDT) is considered a promising adjunct to the currently available endodontic disinfection techniques leading to more effective reduction of intracanal bacteria. The present ex vivo study aimed to assess the antimicrobial effect of PDT using indocyanine green (ICG) as photosensitizer and a near-infrared (NIR) diode laser in root canals of human teeth infected with Enterococcus faecalis. MATERIALS AND METHODS: Ninety single-rooted teeth after chemomechanical preparation and sterilization were contaminated with an E...
February 9, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28185091/canal-cleanliness-using-different-irrigation-activation-systems-a-sem-evaluation
#10
K Urban, D Donnermeyer, Edgar Schäfer, S Bürklein
OBJECTIVES: The purpose of this study was to assess the efficacy of different final irrigation activation methods in removing debris and smear layer in the apical, middle, and coronal portion of straight root canals. MATERIAL AND METHODS: Straight root canals of 58 freshly extracted mandibular premolars were used. Root canals were prepared to size 40.06. Irrigation was performed using 3% sodium hypochlorite. Samples were divided into four equal groups (n = 12) according to the irrigation activation techniques: (A) manual irrigation (MI), (B) EndoActivator (EA) (Dentsply Maillefer, Ballaigues, Switzerland), (C) sonic activation EDDY (EDDY; VDW, Munich, Germany), and (D) passive ultrasonic irrigation (PUI)...
February 9, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28179938/endodontic-management-of-an-infected-primary-molar-in-a-child-with-agenesis-of-the-permanent-premolar
#11
Saeed Asgary, Mahta Fazlyab
Missing of mandibular second premolar is one of the most common types of tooth agenesis. In such cases, maintenance of the primary second molar, if possible at all, can prevent many treatment procedures in future. The present case report represents the endodontic management of a necrotic left mandibular primary second molar that had developed an abscess. Considering the missing of the permanent successor, the tooth was disinfected during endodontic preparation and the root canal system was filled with calcium-enriched mixture (CEM) cement in the same session...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28179932/root-canal-anatomy-and-morphology-of-mandibular-first-molars-in-a-selected-iranian-population-an-in-vitro-study
#12
Nahid Mohammadzadeh Akhlaghi, Zohreh Khalilak, Mehdi Vatanpour, Saman Mohammadi, Sakineh Pirmoradi, Mahta Fazlyab, Kamran Safavi
INTRODUCTION: The aim of this study was to evaluate root canal anatomy of mandibular first molars (MFM) in a selected Iranian Population using clearing technique. METHODS AND MATERIALS: A total of 150 extracted MFMs were cleared. The root canal morphology (including the root numbers and root length) and the anatomy of the root canal system (including is the number and type of canals based on Vertucci's classification, canal curvature according to Schneider's method and the presence of isthmus) was evaluated using the buccolingual and mesiodistal parallel x-rays and stereomicroscope...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28179928/prevalence-of-extra-roots-in-permanent-mandibular-first-molars-in-iranian-population-a-cbct-analysis
#13
Saeed Rahimi, Hadi Mokhtari, Bahram Ranjkesh, Masoomeh Johari, Mohammad Frough Reyhani, Shahriar Shahi, Sina Seif Reyhani
INTRODUCTION: Having knowledge about the anatomy of root canal system is essential for success of endodontic treatment. The present study used cone-beam computed tomography (CBCT), to evaluate the prevalence of third root in mandibular first molars in a selected Iranian population. METHODS AND MATERIALS: A total of 386 CBCT images from subjects referred to oral and maxillofacial radiology department of dental faculty of Tabriz University of Medical Sciences from 2011 to 2013 were selected and evaluated for this study and the cases with well-developed permanent mandibular first molars were included...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28179921/in-vitro-comparison-of-apical-debris-extrusion-using-rotary-and-reciprocating-systems-in-severely-curved-root-canals
#14
Abbas Delvarani, Nahid Mohammadzadeh Akhlaghi, Raana Aminirad, Sohrab Tour Savadkouhi, Seyed Aliakbar Vahdati
INTRODUCTION: The aim of this in vitro study was to compare the amount of apically extruded debris after root canal preparation using rotary and reciprocating systems in severely curved root canals. METHODS AND MATERIALS: Thirty six extracted human mandibular first molars with 25-35(°) curvature in their mesiobuccal (MB) canal (according to Schneider's method) were cleaned and shaped with ProTaper and WaveOne systems. The extruded debris was collected and their net weight was calculated...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28179920/cbct-assessment-of-root-dentine-removal-by-gates-glidden-drills-and-two-engine-driven-root-preparation-systems
#15
Azade Harandi, Fatemeh Mohammadpour Maleki, Ehsan Moudi, Maryam Ehsani, Soraya Khafri
INTRODUCTION: The aim of this study was to compare the dentine removing efficacy of Gates-Glidden drills with hand files, ProTaper and OneShape single-instrument system using cone-beam computed tomography (CBCT). METHODS AND MATERIALS: A total of 39 extracted bifurcated maxillary first premolars were divided into 3 groups (n=13) and were prepared using either Gates-Glidden drills and hand instruments, ProTaper and OneShape systems. Pre- and post-instrumentation CBCT images were obtained...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28179917/comparison-of-postoperative-pain-after-root-canal-preparation-with-two-reciprocating-and-rotary-single-file-systems-a-randomized-clinical-trial
#16
Narges Farhad Mollashahi, Eshagh Ali Saberi, Seyed Rohollah Havaei, Mohammad Sabeti
INTRODUCTION: Root canal preparation techniques may cause postoperative pain. The aim of the present study was to compare the intensity of postoperative pain after endodontic treatment using hand files, single file rotary (OneShape), and single file reciprocating (Reciproc) systems. METHODS AND MATERIALS: In this single-blind, parallel-grouped randomized clinical trial a total of 150 healthy patients aged between 20 to 50 years old were diagnosed with symptomatic irreversible pulpitis of one maxillary or mandibular molars...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28179915/a-review-on-root-anatomy-and-canal-configuration-of-the-maxillary-second-molars
#17
REVIEW
Negin Ghasemi, Saeed Rahimi, Shahriar Shahi, Mohammad Samiei, Mohammad Frough Reyhani, Bahram Ranjkesh
INTRODUCTION: The complexity of the root canal system presents a challenge for the practitioner. This systematic review evaluated the papers published in the field of root canal anatomy and configuration of the root canal system in permanent maxillary second molars. METHODS AND MATERIALS: All articles related to the root morphology and root canal anatomy of the permanent maxillary second molars were collected by suitable keywords from PubMed database. The exhaustive search included all publications from 1981 to December 2015...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28174373/lasers-in-apicoectomy-a-brief-review
#18
Zahed Mohammadi, Hamid Jafarzadeh, Sousan Shalavi, Jun-Ichiro Kinoshita, Luciano Giardino
Since the invention of laser, various applications for lasers in endodontics have been proposed, such as disinfection of the root canal system, canal shaping, pulp diagnosis, and apico-ectomy. One of the major applications of laser in endodontics is apicoectomy. The aim of this article is to review the benefits and drawbacks of laser applications in apicoectomy, including effect on apical seal, effect on dentin permeability, effect on postsurgery pain, effect on crack formation, effect on root-end morphology, effect on treatment outcome, and connective tissue response to laser-treated dentin...
February 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28169268/accidental-separation-and-lodgment-of-rotary-endodontic-file-into-the-dentist-s-thumb
#19
Rohit Karnik, Subraj Shetty, Rajiv S Desai, Karthick Shetty
Separation of the endodontic instrument within the root canal system and sharp injuries to the dentist is not an uncommon event in endodontic practice. Although root canal instruments can fracture at any stage of endodontic treatment, its fracture within the dentist's hand is a very rare event. An unusual case of accidental separation and lodgment of rotary endodontic file in the dentist's thumb is presented along with its management. A 33-year-old dentist reported with an accidental lodgment of rotary endodontic file into his thumb...
November 2016: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28161689/bioactivity-cytocompatibility-and-thermal-properties-of-experimental-bioglass-reinforced-composites-as-potential-root-canal-filling-materials
#20
Raghad Abdulrazzaq Alhashimi, Francesco Mannocci, Salvatore Sauro
To evaluate the bioactivity and the cytocompatibility of experimental Bioglass-reinforced polyethylene-based root-canal filling materials. The thermal properties of the experimental materials were also evaluated using differential scanning calorimetry, while their radiopacity was assessed using a grey-scale value (GSV) aluminium step wedge and a phosphor plate digital system. Bioglass 45S5 (BAG), polyethylene and Strontium oxide (SrO) were used to create tailored composite fibres. The filler distribution within the composites was assessed using SEM, while their bioactivity was evaluated through infrared spectroscopy (FTIR) after storage in simulated body fluid (SBF)...
January 15, 2017: Journal of the Mechanical Behavior of Biomedical Materials
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