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endodontic root canal

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https://www.readbyqxmd.com/read/27912817/molecular-mechanisms-of-apical-periodontitis-emerging-role-of-epigenetic-regulators
#1
REVIEW
Shebli Mehrazarin, Abdullah Alshaikh, Mo K Kang
Conventional root canal therapies yield high success rates. The treatment outcomes are negatively affected by the presence of apical periodontitis (AP), which reflects active root canal infection and inflammatory responses. Also, cross-sectional studies revealed surprisingly high prevalence of AP in the general population, especially in those with prior endodontic treatments. Hence, AP is an ongoing disease entity in endodontics that needs further understanding of the pathogenesis and disease progression. The current Chapter will discuss the basic mechanisms of AP with emphasis on emerging role of epigenetic regulators in regulation of inflammatory mediators...
January 2017: Dental Clinics of North America
https://www.readbyqxmd.com/read/27905673/single-versus-multiple-visits-for-endodontic-treatment-of-permanent-teeth
#2
REVIEW
Maddalena Manfredi, Lara Figini, Massimo Gagliani, Giovanni Lodi
BACKGROUND: Root canal treatment (RoCT), or endodontic treatment, is a common procedure in dentistry. The main indications for RoCT are irreversible pulpitis and necrosis of the dental pulp caused by carious processes, tooth cracks or chips, or dental trauma. Successful RoCT is characterised by an absence of symptoms (i.e. pain) and clinical signs (i.e. swelling and sinus tract) in teeth without radiographic evidence of periodontal involvement (i.e. normal periodontal ligament). The success of RoCT depends on a number of variables related to the preoperative condition of the tooth, as well as the endodontic procedures...
December 1, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27898180/apical-negative-pressure-irrigation-versus-syringe-irrigation-a-systematic-review-of-cleaning-and-disinfection-of-the-root-canal-system
#3
REVIEW
E Konstantinidi, Z Psimma, L E Chávez de Paz, C Boutsioukis
The aim of this study was to systematically review and critically analyse the published data on the treatment outcome (primary outcome) and on the cleaning and disinfection of root canals (secondary outcomes) achieved by negative pressure irrigation as compared to syringe irrigation. An electronic search was conducted in EMBASE, LILACS, Pubmed, SciELO, Scopus, and Web of Knowledge using both free-text keywords and controlled vocabulary. Additional studies were sought through hand-searching of endodontic journals and of the relevant chapters of endodontic textbooks...
November 28, 2016: International Endodontic Journal
https://www.readbyqxmd.com/read/27895867/detection-of-second-mesiobuccal-canals-in-maxillary-first-molars-using-a-new-angle-of-cone-beam-computed-tomography
#4
Ali Murat Aktan, Cihan Yildirim, Emre Culha, Erhan Demir, Mehmet Ertugrul Ciftci
BACKGROUND: The localization of the additional canal orifice is one of the primary factors influencing the success of endodontic treatment. To deal with this problem, several techniques that each have their own advantages and disadvantages have been discussed in the literature. OBJECTIVES: The aim of the present in vitro study was to review a new approach to localizing second mesiobuccal (MB2) canals in maxillary first molars using cone beam computed tomography (CBCT)...
October 2016: Iranian Journal of Radiology: a Quarterly Journal Published By the Iranian Radiological Society
https://www.readbyqxmd.com/read/27895347/comparison-of-fracture-and-deformation-in-the-rotary-endodontic-instruments-protaper-versus-k-3-system
#5
Sana Ehsen Nagi, Farhan Raza Khan, Munawar Rahman
This experimental study was done on extracted human teeth to compare the fracture and deformation of the two rotary endodontic files system namely K-3 and Protapers. It was conducted at the dental clinics of the Aga Khan University Hospital, Karachi, A log of file deformation or fracture during root canal preparation was kept. The location of fracture was noted along with the identity of the canal in which fracture took place. The fracture in the two rotary systems was compared. SPSS 20 was used for data analysis...
March 2016: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/27892626/withdrawn-root-canal-posts-for-the-restoration-of-root-filled-teeth
#6
REVIEW
Marc Bolla, Michele Muller-Bolla, Cybele Borg, Laurence Lupi-Pegurier, Olivier Laplanche, Eric Leforestier
BACKGROUND: The foundation for the reconstruction of endodontically-treated teeth can be provided by a metal or a non-metal post and core system but no guidelines exist for choosing one or the other in particular clinical cases. OBJECTIVES: To assess the effectiveness of different post and core systems for the restoration of endodontically-treated teeth. The primary objective of this review was to compare the clinical failure rates of the different types of posts...
November 28, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27891459/comparison-of-antibacterial-efficacy-of-turmeric-extract-morinda-citrifolia-and-3-sodium-hypochlorite-on-enterococcus-faecalis-an-in-vitro-study
#7
Bathula Vimala Chaitanya, Kusum Valli Somisetty, Abhinav Diwan, Shiraz Pasha, Nandaprasad Shetty, Yashwanth Reddy, Shankar Nadigar
INTRODUCTION: Sodium hypochlorite (NaOCl), the most commonly used irrigant, has many potential properties like its unique ability to dissolve pulp tissue, excellent antimicrobial activity, but has a cytotoxic effect when injected into periapical tissues. It is also known to produce allergic reactions, foul smell and taste, and potential for corrosion. Facultative organisms such as Enterococcus faecalis and aerobes like Staphylococcus aureus are considered to be the most resistant species and one of the possible causes of root canal treatment failure...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27882250/apical-revascularization-after-delayed-tooth-replantation-an-unusual-case
#8
Marília Pacífico Lucisano, Paulo Nelson-Filho, Lea Assed Bezerra Silva, Raquel Assed Bezerra Silva, Fabricio Kitazono de Carvalho, Alexandra Mussolino de Queiroz
The aim of this paper is to present the clinical and radiological outcome of the treatment involving a delayed tooth replantation after an avulsed immature permanent incisor, with a follow-up of 1 year and 6 months. An 8-year-old boy was referred after dental trauma that occurred on the previous day. The permanent maxillary right central incisor (tooth 11) had been avulsed. The tooth was hand-held during endodontic therapy and an intracanal medication application with calcium hydroxide-based paste was performed...
2016: Case Reports in Dentistry
https://www.readbyqxmd.com/read/27882119/bactericidal-effect-of-plasma-jet-with-helium-flowing-through-3-hydrogen-peroxide-against-enterococcus-faecalis
#9
Xin-Cai Zhou, Yu-Lan Li, De-Xi Liu, Ying-Guang Cao, Xin-Pei Lu
The aim of the present study was to assess the antimicrobial activity of plasma jet with helium (He) flowing through 3% hydrogen peroxide in root canals infected with Enterococcus faecalis. A total of 42 single-rooted anterior teeth were prepared, sterilized, inoculated with an E. faecalis suspension and incubated for 7 days. Next, the teeth were randomly divided into six experimental groups (including groups treated by plasma jet with or without He for different time durations) and one control group treated without plasma...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27873521/a-case-of-recurrent-urticaria-due-to-formaldehyde-release-from-root-canal-disinfectant
#10
Ji Hoon Jang, Seung Hyun Park, Hang Jea Jang, Sung Geun Lee, Jin Han Park, Jae Won Jeong, Chan Sun Park
Although formaldehyde is well known to cause type 4 hypersensitivity, immunoglobulin E (IgE)-mediated hypersensitivity to formaldehyde is rare. Here, we report a case of recurrent generalized urticaria after endodontic treatment using a para-formaldehyde (PFA)-containing root canal sealant and present a review of previous studies describing cases of immediate hypersensitivity reactions to formaldehyde. A 50-year-old man visited our allergy clinic for recurrent generalized urticaria several hours after endodontic treatment...
January 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/27872546/evaluation-of-root-canal-morphology-of-maxillary-second-premolars-in-a-saudi-arabian-sub-population-an-in-vitro-microcomputed-tomography-study
#11
Mutasim Elnour, Abdul Khabeer, Emad AlShwaimi
AIM: To investigate the root canal morphology of maxillary second premolars in a Saudi Arabian subpopulation using microcomputed tomography (micro-CT). METHODOLOGY: Micro-CT analysis was performed on 100 maxillary second premolars. The anatomy of each tooth (number of roots, canals, orifices, and apical foramina, and the presence of apical deltas and accessory canals) was analyzed from reconstructed three-dimensional images. RESULTS: The most common morphology was a single root (67%), followed by two roots (30%), and three roots (3%)...
October 2016: Saudi Dental Journal
https://www.readbyqxmd.com/read/27871481/impacts-of-contracted-endodontic-cavities-on-instrumentation-efficacy-and-biomechanical-responses-in-maxillary-molars
#12
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/27871480/release-of-growth-factors-into-root-canal-by-irrigations-in-regenerative-endodontics
#13
Qian Zeng, Sean Nguyen, Hongming Zhang, Hari Priya Chebrolu, Dalia Alzebdeh, Mustafa A Badi, Jong Ryul Kim, Junqi Ling, Maobin Yang
INTRODUCTION: The aim of this study was to investigate the release of growth factors into root canal space after the irrigation procedure of regenerative endodontic procedure. METHODS: Sixty standardized root segments were prepared from extracted single-root teeth. Nail varnish was applied to all surfaces except the root canal surface. Root segments were irrigated with 1.5% NaOCl + 17% EDTA, 2.5% NaOCl + 17% EDTA, 17% EDTA, or deionized water. The profile of growth factors that were released after irrigation was studied by growth factor array...
December 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27858072/-analysis-of-minocycline-hydrochloride-combined-with-vitapex-in-treating-senile-chronic-periodontal-endodontic-combined-lesions
#14
Zhen-Yu Liu, Jing-Dong Zhang, Lin Zhang, Jian Yang, Xiang-Hui Liu
PURPOSE: To investigate the effect of minocycline hydrochloride combined with Vitapex in treating senile chronic periodontal-endodontic combined lesions. METHODS: One hundred twenty patients with senile chronic periodontitis and endodontic lesions patients treated in our hospital between Jun.2012 to Jun.2014 were selected. They were divided into experimental group (n=60) and control group (n=60). Patients in the control group were given conventional root canal therapy, while patients in the experimental group were given Vitapex and minocycline hydrochloride...
August 2016: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/27857773/a-case-report-of-delayed-repositioning-of-intruded-permanent-maxillary-central-incisors-accompanied-by-complicated-crown-fractures-a-2-year-follow-up
#15
Azade Rafiee, Hamid Moradian, Maryam Ayatollahi
Intrusive luxation is the most severe type of dental injury with a complex healing sequence. Pulp necrosis, root resorption (surface, inflammatory and replacement resorption), and defects in marginal periodontal bone healing are the main complications. Treatment strategies can be either active, by repositioning (surgical or orthodontic extrusion), or passive, by spontaneous re-eruption based on the thorough evaluation of the case. This paper reports a case of delayed repositioning of severely intruded permanent maxillary central incisors accompanied by complicated crown fractures after 3 months...
September 2016: Dental Research Journal
https://www.readbyqxmd.com/read/27857762/scaffolds-in-regenerative-endodontics-a-review
#16
REVIEW
Kinjal M Gathani, Srinidhi Surya Raghavendra
Root canal therapy has enabled us to save numerous teeth over the years. The most desired outcome of endodontic treatment would be when diseased or nonvital pulp is replaced with healthy pulp tissue that would revitalize the teeth through regenerative endodontics. 'A search was conducted using the Pubmed and MEDLINE databases for articles with the criteria 'Platelet rich plasma', 'Platelet rich fibrin', 'Stem cells', 'Natural and artificial scaffolds' from 1982-2015'. Tissues are organized as three-dimensional structures, and appropriate scaffolding is necessary to provide a spatially correct position of cell location and regulate differentiation, proliferation, or metabolism of the stem cells...
September 2016: Dental Research Journal
https://www.readbyqxmd.com/read/27853346/comparison-of-antibacterial-effects-of-810-and-980-nanometer-diode-lasers-on-enterococcus-faecalis-in-the-root-canal-system-an-in-vitro-study
#17
Mohamad Asnaashari, Leila Tahmasebi Ebad, Shiva Shojaeian
Background and aim: Use of laser technology in endodontics has greatly increased in the recent years due to the introduction of new wavelengths and methods and optimal antimicrobial and smear layer removal properties of lasers. This in vitro study aimed to compare the antibacterial effects of diode lasers of 810 nm and 980 nm wavelength on Enterococcus faecalis (E. faecalis) biofilm in the root canal system. Materials and methods: Fifty single-canal human anterior teeth were cleaned, shaped, sterilized and randomly divided into four groups namely two experimental, one positive and one negative control group...
October 1, 2016: Laser Therapy
https://www.readbyqxmd.com/read/27847755/radix-mesiolingualis-and-radix-distolingualis-a-case-report-of-a-tooth-with-an-unusual-morphology
#18
Gurudutt Nayak, Himanshu Aeran, Inderpreet Singh
Variation in the root and canal morphology of the maxillary first molars is quite common. The most common configuration is 3 roots and 3 or 4 canals. Nonetheless, other possibilities still exist. The presence of an additional palatal root is rather uncommon and has been reported to have an incidence of 0.06 - 1.6% in varying populations studied. Whenever two palatal roots exist, one of them is the normal palatal root, the other is a supernumerary structure which can be located either mesiolingually (radix mesiolingualis) or distolingually (radix distolingualis)...
November 2016: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/27847747/healing-outcomes-of-root-canal-treatment-for-c-shaped-mandibular-second-molars-a-retrospective-analysis
#19
Hye-Ra Ahn, Young-Mi Moon, Sung-Ok Hong, Min-Seock Seo
OBJECTIVES: This study aimed to evaluate the healing rate of non-surgical endodontic treatment between C-shaped and non-C-shaped mandibular second molars. MATERIALS AND METHODS: Clinical records and radiological images of patients who had undergone endodontic treatment on mandibular second molars between 2007 and 2014 were screened. The periapical index scoring system was applied to compare healing outcomes. Information about preoperative and postoperative factors as well as the demographic data of the patients was acquired and evaluated using chi-square and multinomial logistic regression tests...
November 2016: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/27847398/assessment-of-the-centralization-of-root-canal-preparation-with-rotary-systems
#20
Daniela Siqueira Lopes, Mariana Albuquerque Veiga Pessoa, Carlos Menezes Aguiar
OBJECTIVE: Apical deviations are important factors in endodontic therapy, since they can cause the treatment failure. The aim of the present study was to determine the centering capacity of ProTaper Universal™, Twisted File™ and Revo-S(®) rotary systems using cone beam computed tomography analysis before and after the instrumentation of root canals. MATERIALS AND METHODS: Thirty mesiobuccal roots from human lower first molars were divided into three groups of ten: Group 1 - ProTaper Universal™ Rotary System; Group 2 - Twisted File™ Rotary System; and Group 3 - Revo-S(®) Rotary System...
September 2016: Acta Stomatologica Croatica
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