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https://www.readbyqxmd.com/read/28088226/use-of-an-intraoperative-navigation-system-for-retrieving-a-broken-dental-instrument-in-the-mandible-a-case-report
#1
Shintaro Sukegawa, Takahiro Kanno, Akane Shibata, Kenichi Matsumoto, Yuka Sukegawa-Takahashi, Kyosuke Sakaida, Yoshihiko Furuki
BACKGROUND: A fracture of root canal instruments, with a fractured piece protruding beyond the apex, is a troublesome incident during an endodontic treatment. Locating and retrieving them represents a challenge to maxillofacial surgeons because it is difficult to access due to the proximity between the foreign body and vital structures. Although safe and accurate for surgery, radiographs and electromagnetic devices do not provide a precise three-dimensional position. In contrast, computer-aided navigation provides a correlation between preoperatively collected data and intraoperatively encountered anatomy...
January 15, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28050515/endodontic-management-of-a-mandibular-first-molar-with-radix-entomolaris-and-conservative-post-endodontic-restoration-with-cad-cam-onlay-a-novel-clinical-technique
#2
Kanika Yadav, Ida De Noronha De Ataide, Marina Fernandes, Rajan Lambor, Dalip Alreja
This case report describes a novel technique of restoring endodontically treated teeth. Hidden caries causing irreversible pulpitis in a mandibular molar with Radix Entomolaris (RE) was evident. The intact occlusal surface anatomy was duplicated before preparing an access cavity to replicate the original occlusal surface in the post endodontic restoration using (Computer-Aided Design and Computer-Aided Manufacturing) CAD/CAM technique. This report highlights uniquely designed onlay utilizing the benefits of contemporary materials and advanced technology...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28041682/delayed-root-development-by-displaced-mineral-trioxide-aggregate-after-regenerative-endodontics-a-case-report
#3
Aovana Timmerman, Peter Parashos
INTRODUCTION: This case report presents the treatment of a 16-year-old boy with a maxillary lateral incisor (tooth #10) presenting with Oehlers type II dens invaginatus and diagnosed with previously initiated therapy and asymptomatic apical periodontitis. METHODS: A regenerative endodontic procedure (REP) was performed for the tooth but complicated by apically displaced mineral trioxide aggregate (MTA). Clinical and radiographic examination was undertaken yearly, and a cone-beam computed tomography scan was taken to investigate further the formation of hard tissues within the root canal...
December 29, 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27994416/sealing-ability-of-mineral-trioxide-aggregate-plus%C3%A2-and-biodentine%C3%A2-for-repair-of-furcal-perforation-in-primary-molars-an-in-vitro-study
#4
Farhin A Katge, Pooja Ravindra Shivasharan, Devendra Patil
BACKGROUND: One of the unfavorable outcomes of endodontic treatment in primary molars is furcal perforation. During treatment, bacterial infection at the site of perforation should be prevented for better prognosis. AIM: This study aims to compare sealing ability of mineral trioxide aggregate (MTA) Plus™ and Biodentine™ for the repair of furcal perforation in primary molars using spectrophotometry. MATERIALS AND METHODS: Access opening was done for all ninety extracted teeth...
October 2016: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/27994323/shaping-ability-of-reciprocating-motion-of-waveone-and-hyflex-in-moderate-to-severe-curved-canals-a-comparative-study-with-cone-beam-computed-tomography
#5
Gurram Samuel Simpsy, Girija S Sajjan, Padmaja Mudunuri, Jyothi Chittem, Nalam N V D Prasanthi, Pankaj Balaga
INTRODUCTION: M-Wire and reciprocating motion of WaveOne and controlled memory (CM) wire) of HyFlex were the recent innovations using thermal treatment. Therefore, a study was planned to evaluate the shaping ability of reciprocating motion of WaveOne and HyFlex using cone beam computed tomography (CBCT). METHODOLOGY: Forty-five freshly extracted mandibular teeth were selected and stored in saline until use. All teeth were scanned pre- and post-operatively using CBCT (Kodak 9000)...
November 2016: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/27977863/cbct-uses-in-clinical-endodontics-the-effect-of-cbct-on-the-ability-to-locate-mb2-canals-in-maxillary-molars
#6
J Parker, A Mol, E M Rivera, P Tawil
AIM: To determine if a CBCT volume can aid in the location of MB2 canals in maxillary molars. METHODOLOGY: This prospective clinical study involved 50 patients that needed RCT on a maxillary molar. The teeth where the MB2 was located upon access with the dental operating microscope received routine root canal treatment, and teeth where MB2 was not located had a CBCT volume made after instrumenting the located canals. At the second appointment, the clinician used the aid of the CBCT volume and troughing to attempt to locate MB2...
December 15, 2016: International Endodontic Journal
https://www.readbyqxmd.com/read/27938695/feasibility-assessment-for-using-telehealth-technology-to-improve-access-to-dental-care-for-rural-and-underserved-populations
#7
Amy B Martin, Joni D Nelson, Grishma P Bhavsar, James McElligott, David Garr, Renata S Leite
OBJECTIVE: South Carolina Dental Association members were surveyed on telehealth knowledge, need, and interest in using it for access to care improvements. METHODS: Dependent variables were Medicaid patient population size (less than or greater than 10%), career stage (early to middle and advanced), and National Health Service Corps participation (yes or no). Practice and provider characteristics were screener questions. Data were collected electronically and analyzed with SAS...
December 2016: Journal of Evidence-based Dental Practice
https://www.readbyqxmd.com/read/27871481/impacts-of-contracted-endodontic-cavities-on-instrumentation-efficacy-and-biomechanical-responses-in-maxillary-molars
#8
Brent Moore, Konstantinos Verdelis, Anil Kishen, Thuan Dao, Shimon Friedman
INTRODUCTION: Recently, we reported that in mandibular molars contracted endodontic cavities (CECs) improved fracture strength compared with traditional endodontic cavities (TECs) but compromised instrumentation efficacy in distal canals. This study assessed the impacts of CECs on instrumentation efficacy and axial strain responses in maxillary molars. METHODS: Eighteen extracted intact maxillary molars were imaged with micro-computed tomographic imaging (12-μm voxel), assigned to CEC or TEC groups (n = 9/group), and accessed accordingly...
December 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27790265/efficacy-of-video-assisted-instruction-on-knowledge-and-performance-of-dental-students-in-access-cavity-preparation
#9
Mandana Naseri, Yazdan Shantiaee, Javid Rasekhi, Saeede Zadsirjan, Maryam Mojtahed Bidabadi, Akbar Khayat
INTRODUCTION: The conventional method of teaching endodontics has some drawbacks. Due to the small size of the oral cavity, students cannot closely observe the clinical procedure. Use of new teaching modalities such as the intraoral camera may obviate this problem. This study assessed the effect of video-assisted clinical instruction in dentistry (VACID) on dental student's knowledge and performance in access cavity preparation during endodontic treatment. METHODS AND MATERIALS: In this interventional study, twenty six undergraduate students were equally divided into two groups and received instructions on access cavity preparation via conventional demonstration (CD) or VACID using intraoral camera plus conventional demonstration...
2016: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/27755603/relationship-between-primary-and-secondary-dental-care-in-public-health-services-in-brazil
#10
Renata Castro Martins, Clarice Magalhães Rodrigues Dos Reis, Antonio Thomaz Gonzaga da Matta Machado, João Henrique Lara do Amaral, Marcos Azeredo Furquim Werneck, Mauro Henrique Nogueira Guimarães de Abreu
This cross-sectional study evaluated the relationship between primary and secondary oral health care in Brazil. For this purpose, data from the National Program for Improving Access and Quality of Primary Care were used. Dentists from 12,403 oral health teams (OHTs) answered a structured questionnaire in 2012. The data were analyzed descriptively and by cluster analysis. Of the 12,387 (99.9%) OHTs that answered all the questions, 62.2% reported the existence of Dental Specialties Centers (DSCs) to which they could refer patients...
2016: PloS One
https://www.readbyqxmd.com/read/27704709/comparative-evaluation-of-the-impact-of-minimally-invasive-preparation-vs-conventional-straight-line-preparation-on-tooth-biomechanics-a-finite-element-analysis
#11
Keyong Yuan, Chenguang Niu, Qian Xie, Wenxin Jiang, Li Gao, Zhengwei Huang, Rui Ma
Minimally invasive endodontics emphasizes preservation of a maximal amount of healthy tooth tissue. However, whether the tooth structure preserved by minimally invasive endodontics can maintain higher fracture resistance is unclear. This study aimed to compare the biomechanics on teeth after minimally invasive (MI) preparation and straight-line (SL) preparation using finite element analysis. Six finite element analysis models of a mandibular first molar were constructed and divided into two groups (MI and SL)...
December 2016: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/27687583/endodontic-repair-in-immature-dogs-teeth-with-apical-periodontitis-blood-clot-versus-plasma-rich-in-growth-factors-scaffold
#12
Omid Dianat, Fatemeh Mashhadi Abas, Payam Paymanpour, Mohammad Jafar Eghbal, Sahar Haddadpour, Nazanin Bahrololumi
BACKGROUND/AIM: Different types of scaffolds have been suggested for endodontic repair procedures. The aim of this study was to compare the outcome of procedures using blood clot versus plasma rich in growth factors (PRGF) scaffold in immature teeth with apical periodontitis in dogs. MATERIALS AND METHODS: In this in vivo animal study, 20 teeth (30 canals) with open apices were divided into two groups (n = 12): (1) blood clot and (2) PRGF. Two positive and negative control groups were also selected randomly...
September 30, 2016: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/27663614/how-effective-is-supplemental-intraseptal-anesthesia-in-patients-with-symptomatic-irreversible-pulpitis
#13
Stephen Webster, Melissa Drum, Al Reader, Sara Fowler, John Nusstein, Mike Beck
INTRODUCTION: Previous studies have reported high levels of success with intraseptal injection for various dental procedures but provide limited information on the use of the injection during endodontic treatment. Therefore, the purpose of this prospective study was to determine the anesthetic efficacy of the supplemental intraseptal technique in mandibular posterior teeth diagnosed with symptomatic irreversible pulpitis when the conventional inferior alveolar nerve (IAN) block failed...
October 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27651878/culture-based-identification-of-pigmented-porphyromonas-and-prevotella-species-in-primary-endodontic-infections
#14
Anuradha Rajaram, Vijayalakshmi S Kotrashetti, Pradeep D Somannavar, Preeti Ingalagi, Kishore Bhat
Background. The most common species isolated from primary endodontic infections are black-pigmented bacteria. These species are implicated in apical abscess formation due to their proteolytic activity and are fastidious in nature. Therefore, the present study was carried out to evaluate the presence and identification of various pigmented Porphyromonas and Prevotella species in the infected root canal through culture-based techniques. Methods. Thirty-one patients with primary endodontic infections were selected...
2016: Journal of Dental Research, Dental Clinics, Dental Prospects
https://www.readbyqxmd.com/read/27639638/regenerative-characteristics-of-apical-papilla-derived-cells-from-immature-teeth-with-pulpal-and-periapical-pathosis
#15
Yeon-Jee Yoo, Joung-Hwan Oh, WooCheol Lee, Kyung Mi Woo
INTRODUCTION: The purpose of this study was to ascertain the regenerative characteristics of apical papilla-derived cells (APDCs) from immature teeth with pulpal and periapical pathosis and thus to provide proof-of-principle evidence for further regenerative endodontic research. METHODS: Pulpal and periapical pathosis was induced in immature permanent double-rooted premolars of beagles, which were randomly assigned to experimental treatment groups: group AO (n = 14), pulp disruption and access left open; group PS (n = 14), supragingival plaque suspension-soaked cotton pellet was introduced, and access was sealed; and control (n = 7), untreated...
November 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27630959/a-comparative-evaluation-of-sealing-ability-of-new-mta-based-sealers-with-conventional-resin-based-sealer-an-in-vitro-study
#16
Lovejeet Ahuja, Purshottam Jasuja, Kanika Gupta Verma, Suruchi Juneja, Aditi Mathur, Rashmeet Walia, Ashish Kakkar, Metashi Singla
INTRODUCTION: Root canal obturation is the most important step in the root canal treatment that aims to obtain a complete hermetic seal and to prevent the re-growth of microorganisms in the root canal system. To accomplish this, many endodontic obturation materials and sealers are being used. AIM: To evaluate and compare the apical microleakage of a resin based sealer; Adseal with Mineral Trioxide Aggregate (MTA) based sealers; Pro root MTA and MTA Fillapex. MATERIALS AND METHODS: Total 75 extracted human single rooted teeth were taken and decoronated at cemento-enamel junction...
July 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27616540/changes-in-root-canal-length-determined-during-mechanical-preparation-stages-and-their-relationship-with-the-accuracy-of-root-zx-ii
#17
Bruno Carvalho Vasconcelos, Luzia Mesquista Bastos, Ariany Souza Oliveira, Ricardo Affonso Bernardes, Marco Antonio Hungaro Duarte, Nilton Vivacqua-Gomes, Rodrigo Ricci Vivan
INTRODUCTION: The aim of this study was to determine the variations in root canal length (RCL) occurring during endodontic treatment stages (initial, preflared, and concluded) and correlate them with the accuracy of Root ZX II (RZX). METHODS: After coronal access, 26 mandibular molars had the apical foramen of the 52 mesial canals standardized (250 μm) and their respective initial RCL was recorded (RCL1 = initial) by using a clinical microscope (×16) and manual K-file instruments...
November 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27605995/radicular-anatomy-of-permanent-mandibular-second-molars-in-an-iranian-population-a-preliminary-study
#18
Nahid M Akhlaghi, Fatemeh Mashadi Abbas, Mostafa Mohammadi, Mohammad Reza Karami Shamloo, Orkideh Radmehr, Ramin Kaviani, Vahid Rakhshan
BACKGROUND: Root morphology is of utmost importance to endodontic sciences. Since there are a few studies on the morphology of mandibular second molars' roots, and some anatomical variables are not evaluated before, the aim of this study was to investigate thoroughly radicular anatomy of this tooth. MATERIALS AND METHODS: This ex vivo study was performed on 150 intact mandibular second molars. After access cavity preparation and ensuring canal patency, Indian ink was injected into root canals from the orifices...
July 2016: Dental Research Journal
https://www.readbyqxmd.com/read/27595720/an-in-vitro-evaluation-of-fracture-resistance-of-endodontically-treated-teeth-with-different-restorative-materials
#19
Babita Sangwan, Rahul Rishi, Mukut Seal, Kanav Jain, Pranjali Dutt, Pratim Talukdar
AIMS: The aim of the present study is to compare and assess the fracture resistance of root canal treated teeth with different restorative materials. MATERIALS AND METHODS: The present in vitro study was carried out on seventy-five freshly extracted, noncarious, single-canal human lower-first premolars with similar anatomic characteristics. Teeth were randomly assigned to five groups with 15 teeth being present in each group. Group I is control group (no alteration done), group II is restored with silver amalgam after endodontic therapy, group III is restored with posterior composite after end-odontic therapy, group IV is restored with posterior glass ionomer cement (GIC) after endodontic therapy, and group V is restored with miracle mix after endodontic therapy...
July 1, 2016: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/27552837/effect-of-instrument-design-and-access-outlines-on-the-removal-of-root-canal-obturation-materials-in-oval-shaped-canals
#20
Tuomas K Niemi, Melissa A Marchesan, Adam Lloyd, Robert J Seltzer
INTRODUCTION: The aim of this study was to compare the effectiveness of TRUShape (TS) instruments with ProFile Vortex Blue (VB) instruments for the removal of obturation materials during retreatment of single-canal mandibular premolars performed through 2 access outlines. METHODS: Initial root canal treatment was completed through a contracted endodontic cavity (CEC) design. Canals were instrumented to an F2 ProTaper instrument, obturated with warm lateral condensation of gutta-percha with AH Plus sealer, and allowed to set for 30 days at 37°C and 100% humidity...
October 2016: Journal of Endodontics
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