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Endodontics

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https://www.readbyqxmd.com/read/29135290/-study-of-the-canalis-mandibulae-morphology-in-different-vertical-facial-types
#1
Krisztina Mártha I, Cristina Bica, Blanka Kész, Bernadette Kerekes Máthé
INTRODUCTION: The precise knowledge of the position of canalis mandibulae and foramen mandibulae is important for surgical and endodontic interventions on the mandible. AIM: The aim of the study is to examine the position of these anatomical landmarks in different vertical facial types. METHOD: In the panorama radiograph of 26 normodivergent, 26 hypodivergent and 28 hyperdivergent arthritis (total of 1360 measurements) we measured the distance between the canalis mandibulae and interdental septums, the apex of the lateral teeth, the mandibular base, the goniac angle, and the steepness of the canal and the distance the foramen mandibulae to the anterior and posterior margin of the ramus...
November 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/29126633/mechanical-behavior-of-endodontically-restored-canine-teeth-effects-of-ferrule-post-material-and-shape
#2
Pietro Ausiello, Stefano Ciaramella, Massimo Martorelli, Antonio Lanzotti, Fernando Zarone, David C Watts, Antonio Gloria
OBJECTIVE: To assess the effect of a ferrule design with specific post material-shape combinations on the mechanical behavior of post-restored canine teeth. METHODS: Micro-CT scan images of an intact canine were used to create a 3-D tessellated CAD model, from which the shapes of dentin, pulp and enamel were obtained and geometric models of post-endodontically restored teeth were created. Two types of 15mm post were evaluated: a quartz fiber post with conical-tapered shape, and a carbon (C) fiber post with conical-cylindrical shape...
November 7, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/29126360/endodontic-treatment-of-canine-teeth-in-a-cynomolgus-monkey-macaca-fascicularis
#3
Caterina Facchini, Ilaria Iacopetti, Eugenio Gaudio, Alessandro Zotti, Massimo Boldrin, Fabio Fante, Franco Mutinelli, Emanuele Cozzi, Giulia Maria De Benedictis
A case of bilateral superior canine tooth pulp necrosis in an 18-year-old male Macaca fascicularis is described . A skull computed tomography scan was performed to confirm the diagnostic suspicion. A successful bilateral endodontic treatment with coronotomy was performed using rotary nickel-titanium instruments. Post-operative dental radiographs confirmed the correct positioning of the sealant. A rapid and excellent clinical recovery was obtained after each surgery. This innovative approach may contribute to improving the quality of root canal treatments provided to non-human primates...
January 1, 2017: Laboratory Animals
https://www.readbyqxmd.com/read/29123996/herbal-combat-against-e-faecalis-an-in-vitro-study
#4
Shipra Jaidka, Rani Somani, Deepti Jawa Singh, Tasneem Sheikh, Nidhi Chaudhary, Asiya Basheer
Background: Herbs have renewed importance in this modern era for their antimicrobial properties and fewer side effects. So a novel idea to use these herbs for pulpectomy; was implemented. There are chances of failure of pulpectomy due to inefficient removal of microbial load. Thus, for a successful endodontic treatment, obturating material with optimum antimicrobial properties is advocated in the present study. Aim: To compare and evaluate the antibacterial efficacy of zinc oxide eugenol, zinc oxide with tulsi extract and zinc oxide with aloe vera as obturating materials against E...
September 2017: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/29123632/management-of-post-endodontic-retreatment-pain-with-low-level-laser-therapy
#5
Mohammad Asnaashari, Hengameh Ashraf, Amir Houshang Daghayeghi, Seyed Masoud Mojahedi, Saranaz Azari-Marhabi
Introduction: Pharmacotherapy with analgesics and non-steroidal anti-inflammatory drugs has been traditionally used to relief post-operative pain of endodontic treatments. However, due to the side effects reported for these drugs, some efforts have been made to decrease the post-operative pain of the endodontic treatments through laser irradiation. The present study aimed to evaluate the effects of low level laser therapy (LLLT) on the reduction of pain after root canal retreatment. Methods: In this clinical trial, 61 patients requiring endodontic retreatments in posterior teeth were selected...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29123396/use-of-magnetic-nanoparticles-as-a-drug-delivery-system-to-improve-chlorhexidine-antimicrobial-activity
#6
Grażyna Tokajuk, Katarzyna Niemirowicz, Piotr Deptuła, Ewelina Piktel, Mateusz Cieśluk, Agnieszka Z Wilczewska, Jan R Dąbrowski, Robert Bucki
Nanotechnology offers new tools for developing therapies to prevent and treat oral infections, particularly biofilm-dependent disorders, such as dental plaques and endodontic and periodontal diseases. Chlorhexidine (CHX) is a well-characterized antiseptic agent used in dentistry with broad spectrum activity. However, its application is limited due to inactivation in body fluid and cytotoxicity toward human cells, particularly at high concentrations. To overcome these limitations, we synthesized nanosystems composed of aminosilane-coated magnetic nanoparticles functionalized with chlorhexidine (MNP@CHX)...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29123310/worldwide-pattern-of-antibiotic-prescription-in-endodontic-infections
#7
(no author information available yet)
Antibiotic prescribing practices are frequently inappropriate in endodontic therapy.
November 10, 2017: British Dental Journal
https://www.readbyqxmd.com/read/29119108/effect-of-endocrown-restorations-with-different-cad-cam-materials-3d-finite-element-and-weibull-analyses
#8
Laden Gulec, Nuran Ulusoy
The aim of this study was to evaluate the effects of two endocrown designs and computer aided design/manufacturing (CAD/CAM) materials on stress distribution and failure probability of restorations applied to severely damaged endodontically treated maxillary first premolar tooth (MFP). Two types of designs without and with 3 mm intraradicular extensions, endocrown (E) and modified endocrown (ME), were modeled on a 3D Finite element (FE) model of the MFP. Vitablocks Mark II (VMII), Vita Enamic (VE), and Lava Ultimate (LU) CAD/CAM materials were used for each type of design...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29116494/clinical-and-microbiological-effectiveness-of-photodynamic-therapy-on-primary-endodontic-infections-a-6-month-randomized-clinical-trial
#9
Rachel Garcia de Miranda, Ana Paula Vieira Colombo
INTRODUCTION: This short-term randomized controlled trial evaluated the effectiveness of photodynamic therapy (PDT) on clinical success (periapical healing) and on the microbiota of primary endodontic infections. METHODS: Thirty-two patients presenting mandibular molars with apical periodontitis (one tooth/patient) were selected and randomly allocated into two therapeutic groups: control (chemo-mechanical debridement [CMD]; n = 16) and PDT (CMD + PDT; n = 16)...
November 7, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29114431/maxillary-first-premolars-with-three-root-canals-two-case-reports
#10
Zeliha Ugur, Kerem Engin Akpinar, Demet Altunbas
It is very important that the dentists have sufficient information about possible variations in the expected root canal configurations in order to achieve success in endodontic treatment. In addition to having adequate knowledge on the variations of the root canal anatomy, periapical radiographs from different angles, careful examination of the pulp chamber floor, and use of dental operation microscope during the procedure are also important factors that contribute to the diagnosis of the additional roots and canals...
2017: J Istanb Univ Fac Dent
https://www.readbyqxmd.com/read/29109814/evaluation-of-dentin-defect-formation-during-retreatment-with-hand-and-rotary-instruments-a-micro-ct-study
#11
Ayca Yilmaz, Dilek Helvacioglu-Yigit, Cansu Gur, Handan Ersev, Gullu Kiziltas Sendur, Egemen Avcu, Canan Baydemir, Paul Vincent Abbott
The purpose of this study was to compare the incidence and longitudinal propagation of dentin defects after gutta-percha removal with hand and rotary instruments using microcomputed tomography. Twenty mandibular incisors were prepared using the balanced-force technique and scanned in a 19.9 μm resolution. Following filling with the lateral compaction technique, gutta-percha was removed with ProTaper Universal Retreatment (PTUR) or hand instruments. After rescanning, a total of 24,120 cross-sectional images were analyzed...
2017: Scanning
https://www.readbyqxmd.com/read/29109327/evolution-of-nickel-titanium-alloys-in-endodontics
#12
Hani F Ounsi, Wadih Nassif, Simone Grandini, Ziad Salameh, Prasanna Neelakantan, Sukumaran Anil
To improve clinical use of nickel-titanium (NiTi) endodontic rotary instruments by better understanding the alloys that compose them. A large number of engine-driven NiTi shaping instruments already exists on the market and newer generations are being introduced regularly. While emphasis is being put on design and technique, manufacturers are more discreet about alloy characteristics that dictate instrument behavior. Along with design and technique, alloy characteristics of endodontic instruments is one of the main variables affecting clinical performance...
November 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/29109323/impact-of-root-dentin-thickness-on-the-in-vitro-compressive-strength-of-teeth-treated-with-recent-post-and-core-systems
#13
Amit Bhagat, Litik Mittal, Sahil Mogla, Tawanpreet Kaur, Munish Dheeraj, Gursimran Marwah
INTRODUCTION: Endodontically treated teeth dry with time, and its dentin undergoes changes making the teeth brittle and friable. The main function of a post is to strengthen or reinforce a weakened root. However, doing a post and core frequently requires the removal of sound tooth tissue. Recent materials introduced in the market for post and cores have been promising. AIM: The aim of this study is to evaluate the fracture resistance of endodontically treated extracted permanent teeth with variable remaining root dentin thickness after post space preparation...
November 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/29109320/effects-of-the-ratio-between-pigment-and-bleaching-gel-on-the-fracture-resistance-and-dentin-microhardness-of-endodontically-treated-teeth
#14
Marina Og Galloza, Keren Cf Jordão-Basso, Matheus C Bandeca, Samuel O Costa, Alvaro H Borges, Mateus R Tonetto, Fabio C Tirintan, Kátia C Keine, Milton C Kuga
INTRODUCTION: The aim of this study was to evaluate the effects of bleaching gel using 35% hydrogen peroxide (HP), associated with red carmine pigment (RC), in the 3:1 or 1:1 ratio, on fracture resistance and dentin microhardness of endodontically treated teeth. MATERIALS AND METHODS: A total of 40 lower incisors were endodontically treated and divided into four groups (n = 10), according to the bleaching protocol: G1 (HP3), 35% HP + RC (3:1); G2 (HP1), 35% HP + RC (1:1); G3 (positive), 38% HP; and G4 (negative), unbleached...
November 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/29109318/extrusion-of-debris-from-primary-molar-root-canals-following-instrumentation-with-traditional-and-new-file-systems
#15
Bhagyashree Thakur, Ajinkya M Pawar, Anda Kfir, Prasanna Neelakantan
INTRODUCTION: To assess the amount of debris extruded apically during instrumentation of distal canals of extracted primary molars by three instrument systems [ProTaper Universal (PTU), ProTaper NEXT (PTN), and self-adjusting file (SAF)] compared with conventional stainless steel hand K-files (HF, control). MATERIALS AND METHODS: Primary mandibular molars (n = 120) with a single distal canal were selected and randomly divided into four groups (n = 30) for root canal instrumentation using group I, HF (to size 0...
November 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/29107135/influence-of-the-addition-of-microsphere-load-amoxicillin-in-the-physical-chemical-and-biological-properties-of-an-experimental-endodontic-sealer
#16
Nélio Bairros Dornelles, Fabrício Mezzomo Collares, Bruna Genari, Gabriela de Souza Balbinot, Susana Maria Werner Samuel, Rodrigo Alex Arthur, Fernanda Visioli, Silvia Stanisçuaski Guterres, Vicente Castelo Branco Leitune
AIM: To develop an endodontic sealer with amoxicillin-loaded microsphere and to evaluate its properties. METHODS: Experimental sealer was obtained by mixing 70wt% UDMA, 15wt% GDMA and 15wt% BISEMA. In addition, CQ, DHEPT and PB were incorporated at 1 mol% and 0.01wt% BHT and 10wt% YbF3. Microspheres were produced by drying in spray dryer. Two experimental groups (10 and 15wt% of microspheres) and one control group (without microspheres) were formulated. The sealers were evaluated for the degree of conversion (n=3), degradation in solvent (n=3), drug release profile (n=3), antimicrobial activity (n=3), flow (n=3), film thickness (n=3) and cytotoxicity (n=3)...
October 26, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/29107134/restoration-of-severely-damaged-endodontically-treated-premolars-the-influence-of-the-endo-core-length-on-marginal-integrity-and-fatigue-resistance-of-lithium-disilicate-cad-cam-ceramic-endocrowns
#17
G T Rocca, R Daher, C M Saratti, R Sedlacek, T Suchy, A J Feilzer, I Krejci
OBJECTIVES: to explore fatigue limits of ceramic endocrowns for premolars. METHODS: Forty-eight devitalized premolars were cut at the CEJ. They were restored with standardized CAD-CAM lithium disilicate reinforced ceramic restorations (IPS e.max CAD, Ivoclar-Vivadent) and divided into four Groups (n=12): overlays (Group A, no endo-core, negative control), endocrowns with an endo-core of 2mm (Group B), 4mm (GroupC) and crowns with post and core (Group D, positive control)...
October 26, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/29106310/comparison-of-microtomography-and-optical-coherence-tomography-on-apical-endodontic-filling-analysis
#18
Fernanda Clotilde Mariz Suassuna, Ana Marly Araujo Maia, Daniela Pita Melo, Antonio Celso Dantas Antônino, Anderson Stevens Leonidas Gomes, Patrícia Meira Bento
OBJECTIVES: To compare in vitro differences in the apical filling regarding working length (WL) change and presence of voids and to validate OCT in comparison to µCT for the detection of failures in the apical filling. METHODS: Forty-five uniradicular teeth with round canals, divided into groups (n=15) following the obturation protocols: CL (Lateral condensation), TMC (thermomechanical compaction) and SC (single cone). Samples were scanned using µCT (parameters: 80 kV, 222 µA, and resolution of 11µm), OCT (parameters: SSOCT, 1300nm and axial resolution of 12µm), and periapical digital radiography...
November 6, 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29104601/treatment-of-a-four-rooted-maxillary-second-molar-detected-with-cone-beam-computed-tomography
#19
Nahid Mohammadzade Akhlaghi, Mahta Fazlyab
The significance of clinician's knowledge about root canal anatomy and its possible variations cannot be overlooked. In some cases, taking advantage of complementary imaging techniques can help achieve a perfect flawless endodontic treatment. This article reports endodontic management of a second maxillary molar that had an uncommon anatomy of the chamber floor. After obtaining a cone-beam computed tomography (CBCT) image, the presence of a second palatal root was confirmed. All four roots were treated and patient's symptoms were resolved...
March 2017: Journal of Dentistry of Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/29104390/an-in-vitro-comparative-evaluation-of-efficacy-of-disinfecting-ability-of-garlic-oil-neem-oil-clove-oil-and-tulsi-oil-with-autoclaving-on-endodontic-k-files-tested-against-enterococcus-faecalis
#20
Shivayogi Hugar, Punit M Patel, Jyoti Nagmoti, Chaitanya Uppin, Laresh Mistry, Neha Dhariwal
Aim: To comparatively evaluate the efficacy of disinfecting ability of garlic oil, neem oil, clove oil, and tulsi oil with autoclaving on endodontic K files tested against Enterococcus faecalis. Materials and methods: Fifty endodontic K files were exposed to the test micro-organism and checked for its disinfecting ability using three different methods. Result: Garlic oil, clove oil, tulsi oil and autoclave showed considerable effectiveness against E...
July 2017: International Journal of Clinical Pediatric Dentistry
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