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Restorative Dentistry & Endodontics

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https://www.readbyqxmd.com/read/30135854/management-of-a-permanent-maxillary-first-molar-with-unusual-crown-and-root-anatomy-a-case-report
#1
Prateeksha Chowdhry, Pallavi Reddy, Mamta Kaushik
The aim of this article was to showcase the endodontic management of a maxillary first molar with an unusual crown and root anatomy. Clinical diagnosis of the roots and root canal configuration was confirmed by a cone-beam computed tomography (CBCT) and the detection of the canals was made using a dental operating microscope. CBCT images revealed the presence of 5 roots with Vertucci type I canal configuration in all, except, in the middle root which had 2 canals with type IV configuration. The 6 canal orifices were clinically visualized under the dental operating microscope...
August 2018: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/30135853/statistical-notes-for-clinical-researchers-simple-linear-regression-2-evaluation-of-regression-line
#2
Hae-Young Kim
No abstract text is available yet for this article.
August 2018: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/30135852/cbct-study-of-mandibular-first-molars-with-a-distolingual-root-in-koreans
#3
Hee-Ho Kim, Hyoung-Hoon Jo, Jeong-Bum Min, Ho-Keel Hwang
Objectives: This study aimed to investigate the prevalence of a separate distolingual root and to measure the thickness of the buccal cortical bone in mandibular first molars in Koreans using cone-beam computed tomography (CBCT) images. Materials and Methods: High-quality CBCT data from 432 patients were analyzed in this study. The prevalence of a separate distolingual root of the mandibular first molar was investigated. The distance from the distobuccal and distolingual root apices to the outer surface of the buccal cortical bone was measured...
August 2018: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/30135851/effects-of-a-bleaching-agent-on-properties-of-commercial-glass-ionomer-cements
#4
Fernanda Lúcia Lago de Camargo, Ailla Carla Lancellotti, Adriano Fonseca de Lima, Vinícius Rangel Geraldo Martins, Luciano de Souza Gonçalves
Objectives: This study evaluated the effects of a bleaching agent on the composition, mechanical properties, and surface topography of 6 conventional glass-ionomer cements (GICs) and one resin-modified GIC. Materials and Methods: For 3 days, the specimens were subjected to three 20-minute applications of a 37% H2 O2 -based bleaching agent and evaluated for water uptake (WTK), weight loss (WL), compressive strength (CS), and Knoop hardness number (KHN). Changes in surface topography and chemical element distribution were also analyzed by energy-dispersive X-ray spectroscopy and scanning electron microscopy...
August 2018: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/30135850/revitalization-of-necrotic-mature-permanent-incisors-with-apical-periodontitis-a-case-report
#5
Emre Nagas, M Ozgur Uyanik, Zafer C Cehreli
Despite considerable focus on the regenerative endodontic treatment of immature teeth with necrotic infected pulps and apical periodontitis, little data exist with regard to its possible implementation in necrotic permanent teeth with complete apical and radicular development. The present report describes the procedures and outcome of a regenerative endodontic treatment approach in 2 previously-traumatized incisors with closed apex with apical periodontitis. A 2-visit treatment procedure was employed. At initial visit, the root canals were copiously irrigated, followed by placement of a triple antibiotic paste containing ciprofloxacin, metronidazole, and clindamycin into the root canals...
August 2018: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/30135849/bacterial-leakage-and-micro-computed-tomography-evaluation-in-round-shaped-canals-obturated-with-bioceramic-cone-and-sealer-using-matched-single-cone-technique
#6
Kallaya Yanpiset, Danuchit Banomyong, Kanet Chotvorrarak, Ratchapin Laovanitch Srisatjaluk
Objectives: To evaluate sealing ability of root canals obturated with bioceramic-impregnated gutta percha cone (BCC) or gutta percha (GP), with bioceramic sealer (BCS) or AH Plus (AH; Dentsply-Maillefer), in roundly-prepared canals using matched single-cone technique, based on bacterial leakage test, and to analyze obturation quality using micro-computed tomography (CT) analysis. Materials and Methods: Ninety-two distobuccal roots of maxillary molars were prepared using nickel-titanium files to apical size 40/0...
August 2018: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/30135848/do-universal-adhesives-promote-bonding-to-dentin-a-systematic-review-and-meta-analysis
#7
Ali A Elkaffas, Hamdi H H Hamama, Salah H Mahmoud
Objectives: The aims of this study were to conduct a systematic review of the microtensile bond strength (µTBS) of multi-mode adhesives to dentin and to perform a meta-analysis to assess the significance of differences in the µTBS of one of the most commonly used universal adhesives (Scotchbond Universal, 3M ESPE) depending on whether the etch-and-rinse or self-etch mode was used. Materials and Methods: An electronic search was performed of MEDLINE/PubMed, ScienceDirect, and EBSCOhost...
August 2018: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/30135847/triple-antibiotic-paste-momentous-roles-and-applications-in-endodontics-a-review
#8
REVIEW
Ardavan Parhizkar, Hanieh Nojehdehian, Saeed Asgary
This study investigated the latest findings and notions regarding 'triple antibiotic paste' (TAP) and its applications in dentistry, particularly endodontics. TAP is a combination of 3 antibiotics, ciprofloxacin, metronidazole, and minocycline. Despite the problems and pitfalls research pertaining to this paste has unveiled, it has been vastly used in endodontic treatments. The paste's applications vary, from vital pulp therapy to the recently introduced regeneration and revascularisation protocol. Studies have shown that the paste can eliminate the root canal microorganisms and prepare an appropriate matrix for further treatments...
August 2018: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/30135846/light-transmittance-of-cad-cam-ceramics-with-different-shades-and-thicknesses-and-microhardness-of-the-underlying-light-cured-resin-cement
#9
Zahra Jafari, Homayoon Alaghehmand, Yasaman Samani, Mina Mahdian, Soraya Khafri
Objectives: The aim of this in vitro study was to evaluate the effects of the thickness and shade of 3 types of computer-aided design/computer-aided manufacturing (CAD/CAM) materials. Materials and Methods: A total of 120 specimens of 2 shades (A1 and A3) and 2 thicknesses (1 and 2 mm) were fabricated using VITA Mark II (VM; VITA Zahnfabrik), IPS e.max CAD (IE; IvoclarVivadent), and VITA Suprinity (VS; VITA Zahnfabrik) ( n = 10 per subgroup). The amount of light transmission through the ceramic specimens was measured by a radiometer (Optilux, Kerr)...
August 2018: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/30135845/effects-of-four-novel-root-end-filling-materials-on-the-viability-of-periodontal-ligament-fibroblasts
#10
Makbule Bilge Akbulut, Pembegul Uyar Arpaci, Ayce Unverdi Eldeniz
Objectives: The aim of this in vitro study was to evaluate the biocompatibility of newly proposed root-end filling materials, Biodentine, Micro-Mega mineral trioxide aggregate (MM-MTA), polymethylmethacrylate (PMMA) bone cement, and Smart Dentin Replacement (SDR), in comparison with contemporary root-end filling materials, intermediate restorative material (IRM), Dyract compomer, ProRoot MTA (PMTA), and Vitrebond, using human periodontal ligament (hPDL) fibroblasts. Materials and Methods: Ten discs from each material were fabricated in sterile Teflon molds and 24-hour eluates were obtained from each root-end filling material in cell culture media after 1- or 3-day setting...
August 2018: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/30135844/retention-of-bioaggregate-and-mta-as-coronal-plugs-after-intracanal-medication-for-regenerative-endodontic-procedures-an-ex-vivo-study
#11
Suzan Abdul Wanees Amin, Shaimaa Ismail Gawdat
Objectives: This study compared the retention of BioAggregate (BA; Innovative BioCeramix) and mineral trioxide aggregate (MTA; Angelus) as coronal plugs after applying different intracanal medications (ICMs) used in regenerative endodontics. Materials and Methods: One-hundred human maxillary central incisors were used. The canals were enlarged to a diameter of 1.7 mm. Specimens were divided into 5 groups ( n = 20) according to the ICM used: calcium hydroxide (CH), 2% chlorhexidine (CHX), triple-antibiotic paste (TAP), double-antibiotic paste (DAP), and no ICM (control; CON)...
August 2018: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/29765905/the-effect-of-thermocycling-on-the-degree-of-conversion-and-mechanical-properties-of-a-microhybrid-dental-resin-composite
#12
Mehrsima Ghavami-Lahiji, Melika Firouzmanesh, Hossein Bagheri, Tahereh S Jafarzadeh Kashi, Fateme Razazpour, Marjan Behroozibakhsh
Objective: The purpose of this study was to investigate the degree of conversion (DC) and mechanical properties of a microhybrid Filtek Z250 (3M ESPE) resin composite after aging. Method: The specimens were fabricated using circular molds to investigate Vickers microhardness (Vickers hardness number [VHN]) and DC, and were prepared according to ISO 4049 for flexural strength testing. The initial DC (%) of discs was recorded using attenuated total reflectance-Fourier transforming infrared spectroscopy...
May 2018: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/29765904/cyclic-fatigue-resistance-torsional-resistance-and-metallurgical-characteristics-of-m3-rotary-and-m3-pro-gold-niti-files
#13
Eugenio Pedullà, Fabio Lo Savio, Giusy Rita Maria La Rosa, Gabriele Miccoli, Elena Bruno, Silvia Rapisarda, Seok Woo Chang, Ernesto Rapisarda, Guido La Rosa, Gianluca Gambarini, Luca Testarelli
Objectives: To evaluate the mechanical properties and metallurgical characteristics of the M3 Rotary and M3 Pro Gold files (United Dental). Materials and Methods: One hundred and sixty new M3 Rotary and M3 Pro Gold files (sizes 20/0.04 and 25/0.04) were used. Torque and angle of rotation at failure ( n = 20) were measured according to ISO 3630-1. Cyclic fatigue resistance was tested by measuring the number of cycles to failure in an artificial stainless steel canal (60° angle of curvature and a 5-mm radius)...
May 2018: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/29765903/effect-of-ultrasonic-agitation-on-push-out-bond-strength-and-adaptation-of-root-end-filling-materials
#14
Murilo Priori Alcalde, Rodrigo Ricci Vivan, Marina Angélica Marciano, Jussaro Alves Duque, Samuel Lucas Fernandes, Mariana Bailo Rosseto, Marco Antonio Hungaro Duarte
Objectives: This study evaluated the effect of ultrasonic agitation of mineral trioxide aggregate (MTA), calcium silicate-based cement (CSC), and Sealer 26 (S26) on adaptation at the cement/dentin interface and push-out bond strength. Materials and Methods: Sixty maxillary canines were divided into 6 groups ( n = 10): MTA, S26, and CSC, with or without ultrasonic activation (US). After obturation, the apical portions of the teeth were sectioned, and retrograde cavities were prepared and filled with cement by hand condensation...
May 2018: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/29765902/comparison-of-light-transmittance-in-dental-tissues-and-dental-composite-restorations-using-incremental-layering-build-up-with-varying-enamel-resin-layer-thickness
#15
Rodrigo Rocha Maia, Dayane Oliveira, Tracy D'Antonio, Fang Qian, Frederick Skiff
Objectives: To evaluate and compare light-transmittance in dental tissues and dental composite restorations using the incremental double-layer technique with varying layer thickness. Materials and Methods: B1-colored natural teeth slabs were compared to dental restoration build-ups with A2D and B1E-colored nanofilled, supra-nanofilled, microfilled, and microhybrid composites. The enamel layer varied from 0.3, 0.5, or 1.2 mm thick, and the dentin layer was varied to provide a standardized 3...
May 2018: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/29765901/statistical-notes-for-clinical-researchers-simple-linear-regression-1-basic-concepts
#16
Hae-Young Kim
No abstract text is available yet for this article.
May 2018: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/29765900/effect-of-various-bleaching-treatments-on-shear-bond-strength-of-different-universal-adhesives-and-application-modes
#17
Fatma Dilsad Oz, Zeynep Bilge Kutuk
Objectives: The aim of this in vitro study was to evaluate the bond strength of 2 universal adhesives used in different application modes to bleached enamel. Materials and Methods: Extracted 160 sound human incisors were used for the study. Teeth were divided into 4 treatment groups: No treatment, 35% hydrogen peroxide, 16% carbamid peroxide, 7.5% carbamid peroxide. After bleaching treatments, groups were divided into subgroups according to the adhesive systems used and application modes ( n = 10): 1) Single Bond Universal, etch and rinse mode; 2) Single Bond Universal, self-etch mode; 3) Gluma Universal, etch and rinse mode; 4) Gluma Universal, self-etch mode...
May 2018: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/29765899/the-effect-of-continuous-application-of-mdp-containing-primer-and-luting-resin-cement-on-bond-strength-to-tribochemical-silica-coated-y-tzp
#18
Myung-Jin Lim, Mi-Kyung Yu, Kwang-Won Lee
Objectives: This study investigated the effect of continuous application of 10-methacryloyloxydecyldihydrogen phosphate (MDP)-containing primer and luting resin cement on bond strength to tribochemical silica-coated yttria-stabilized tetragonal zirconia polycrystal (Y-TZP). Materials and Methods: Forty bovine teeth and Y-TZP specimens were prepared. The dentin specimens were embedded in molds, with one side of the dentin exposed for cementation with the zirconia specimen...
May 2018: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/29765898/periodontal-healing-following-non-surgical-repair-of-an-old-perforation-with-pocket-formation-and-oral-communication
#19
Saeed Asgary, Prashant Verma, Ali Nosrat
Iatrogenic perforations negatively impact the outcome of endodontic treatments. Studies on prognostic factors showed that perforations in the coronal third of the root with periodontal pocket formation have an unfavorable prognosis. A 36-year-old female was referred for endodontic evaluation of tooth #13 with a history of an iatrogenic perforation, happened 3 years ago. There was a sinus tract associated with perforation, 10 mm probing on the mesial and mesio-palatal, bleeding on probing, radiolucent lesion adjacent to the perforation and complete resorption of the interdental bone between teeth #13 and #12...
May 2018: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/29765897/anatomical-analysis-of-the-resected-roots-of-mandibular-first-molars-after-failed-non-surgical-retreatment
#20
Jiyoung Yoon, Byeong-Hoon Cho, Jihyun Bae, Yonghoon Choi
Objectives: Understanding the reason for an unsuccessful non-surgical endodontic treatment outcome, as well as the complex anatomy of the root canal system, is very important. This study examined the cross-sectional root canal structure of mandibular first molars confirmed to have failed non-surgical root canal treatment using digital images obtained during intentional replantation surgery, as well as the causative factors of the failed conventional endodontic treatments. Materials and Methods: This study evaluated 115 mandibular first molars...
May 2018: Restorative Dentistry & Endodontics
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