keyword
MENU ▼
Read by QxMD icon Read
search

endodontic access

keyword
https://www.readbyqxmd.com/read/27871481/impacts-of-contracted-endodontic-cavities-on-instrumentation-efficacy-and-biomechanical-responses-in-maxillary-molars
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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...
September 14, 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
#9
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
#10
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...
September 9, 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27605995/radicular-anatomy-of-permanent-mandibular-second-molars-in-an-iranian-population-a-preliminary-study
#11
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
#12
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
#13
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
https://www.readbyqxmd.com/read/27542693/the-effect-of-endodontic-access-on-all-ceramic-crowns-a-systematic-review-of-in-vitro-studies
#14
REVIEW
Catherine M Gorman, Noel J Ray, Francis M Burke
OBJECTIVES: The aim of this systematic review was to identify from in vitro studies the effect of endodontic access on the fracture resistance and damage around the access cavity of all-ceramic crowns. DATA: The articles identified were screened by two reviewers according to inclusion and exclusion criteria. The reference lists of articles advanced to second round screening were hand searched to identify additional potential articles. The risk of bias for the articles was independently performed by two reviewers...
October 2016: Journal of Dentistry
https://www.readbyqxmd.com/read/27511034/-theory-and-practice-of-minimally-invasive-endodontics
#15
H W Jiang
The primary goal of modern endodontic therapy is to achieve the long-term retention of a functional tooth by preventing or treating pulpitis or apical periodontitis is. The long-term retention of endodontically treated tooth is correlated with the remaining amount of tooth tissue and the quality of the restoration after root canal filling. In recent years, there has been rapid progress and development in the basic research of endodontic biology, instrument and applied materials, making treatment procedures safer, more accurate, and more efficient...
August 2016: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
https://www.readbyqxmd.com/read/27506002/ethnic-and-socioeconomic-inequalities-in-dental-treatment-at-a-school-of-dentistry
#16
J M Broadbent, R F Theodore, L Te Morenga, W M Thomson, P A Brunton
BACKGROUND AND OBJECTIVES: Health services should be targeted toward those most in need of health care. Poor oral health disproportionately affects Māori, Pacific Island, and socioeconomically deprived New Zealanders of all ages, and oral health care services should be prioritised to such groups. In New Zealand, free oral health care is available for all children up to the age of 17. On the other hand, adult dental services are provided on a user-pays basis, except for a limited range of basic services for some adults, access to which varies regionally...
June 2016: New Zealand Dental Journal
https://www.readbyqxmd.com/read/27486505/fracture-resistance-of-endodontically-treated-teeth-restored-with-a-bulkfill-flowable-material-and-a-resin-composite
#17
Almira Isufi, Gianluca Plotino, Nicola Maria Grande, Pietro Ioppolo, Luca Testarelli, Rossella Bedini, Dina Al-Sudani, Gianluca Gambarini
AIM: To determine and compare the fracture resistance of endodontically treated teeth restored with a bulk fill flowable material (SDR) and a traditional resin composite. METHODS: Thirty maxillary and 30 mandibular first molars were selected based on similar dimensions. After cleaning, shaping and filling of the root canals and adhesive procedures, specimens were assigned to 3 subgroups for each tooth type (n=10): Group A: control group, including intact teeth; Group B: access cavities were restored with a traditional resin composite (EsthetX; Dentsply-Italy, Rome, Italy); Group C: access cavities were restored with a bulk fill flowable composite (SDR; Dentsply-Italy), except 1...
January 2016: Annali di Stomatologia
https://www.readbyqxmd.com/read/27471533/a-clinical-update-on-the-different-methods-to-decrease-the-occurrence-of-missed-root-canals
#18
REVIEW
Zahed Mohammadi, Saeed Asgary, Sousan Shalavi, Paul V Abbott
One of the main causes of endodontic treatment failure is the clinician's inability to localize all the root canals. Due to the complex anatomy of the root canal system, missed canals are not uncommon. There are several strategies to decrease the possibility of missed root canals starting with good pre-operative radiographies. In order to overcome the limitations of conventional radiographies, cone-beam computed tomography (CBCT) can be considered. A correct access cavity preparation is of pivotal importance in localizing the orifices of the root canals...
2016: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/27471526/comparison-of-tooth-discoloration-induced-by-calcium-enriched-mixture-and-mineral-trioxide-aggregate
#19
Armita Rouhani, Majid Akbari, Aida Farhadi-Faz
INTRODUCTION: The aim of this in vitro study was to evaluate the tooth discoloration induced by calcium-enriched mixture (CEM) cement and mineral trioxide aggregate (MTA). METHODS AND MATERIALS: Forty five endodontically treated human maxillary central incisors were selected and divided into three groups (n=15) after removing the coronal 3 mm of the obturating materials. In the MTA group, white MTA plug was placed in pulp chamber and coronal zone of the root canal...
2016: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/27447000/effect-of-endodontic-access-cavity-preparation-on-monolithic-and-ceramic-veneered-zirconia-restorations
#20
Tanja Grobecker-Karl, Mirko Christian, Matthias Karl
OBJECTIVES: Due to the high chipping rates observed in veneered zirconia ceramic restorations, the use of monolithic zirconia restorations has been recommended. This study tried to compare veneered and monolithic zirconia fixed dental prostheses (FDPs) with respect to the amount of damage induced by endodontic access preparation. METHOD AND MATERIALS: Monolithic and ceramic veneered (n = 10) three-unit restorations (retainers: first premolar and first molar; pontic: second premolar) were subject to endodontic access cavity preparation in both retainers using a diamond rotary instrument under continuous water cooling...
2016: Quintessence International
keyword
keyword
108345
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"