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Endodontics Files

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https://www.readbyqxmd.com/read/30341776/microguided-endodontics-a-case-report-of-a-maxilary-lateral-incisor-with-pulp-canal-obliteration-and-apical-periodontitis
#1
A Torres, E Shaheen, P Lambrechts, C Politis, R Jacobs
AIM: To describe a minimally invasive method to create a 3D printed guide to gain access to obliterated root canals on the basis of CBCT data. SUMMARY: A 85-year-old female ASA III was referred for root canal treatment of tooth 22. Clinically there were no complains, no percussion pain or sinus tract. Radiologically the tooth had an obliterated canal with an apical radiolucency. The tooth was diagnosed with asymptomatic apical periodontitis. Microguided Endodontic treatment was performed with the help of a 3D printed guide...
October 19, 2018: International Endodontic Journal
https://www.readbyqxmd.com/read/30305881/evaluation-of-the-time-required-to-perform-three-retreatment-techniques-with-dental-microscope-and-ultrasonic-activation-for-removing-filling-material-from-the-oval-root-canal
#2
Tarek-Fahed Alakabani, Vicente Faus-Llácer, Vicente Faus-Matoses
Background: When endodontic treatment fails, retreatment consists of the complete removal of the root canal filling material for thorough cleaning and reobturation. Various techniques are available for the filling removal procedure, which present varying degrees of efficacy, and take a varying length of time to perform. The aim of this study was to compare the time required to carry out reciprocating, rotary, and manual techniques with dental microscope and ultrasonic activation for removing filling material from root canals...
August 2018: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/30295382/penetrability-of-a-new-endodontic-sealer-a-confocal-laser-scanning-microscopy-evaluation
#3
Gabriela Gonçalez Piai, Marco Antônio Húngaro Duarte, Angela Longo do Nascimento, Ricardo Abreu da Rosa, Marcus Vinícius Reis Só, Rodrigo Ricci Vivan
This study aimed to evaluate the penetration of a new endodontic sealer into the dentinal tubules. Twenty single-rooted teeth were selected. The crown was sectioned, and the canals were instrumented with a reciprocating system. Irrigation was performed with 2 mL of 2.5% sodium hypochlorite between each file change. After instrumentation, the root canals were irrigated with 2 mL of17% EDTA for 3 min followed by saline solution. The specimens were randomized into two groups (n =10) according to the endodontic sealer: AH Plus (AP) or Sealer Plus (SP)...
October 8, 2018: Microscopy Research and Technique
https://www.readbyqxmd.com/read/30294149/evaluation-of-antimicrobial-efficacy-of-nanosilver-solution-sodium-hypochlorite-and-normal-saline-in-root-canal-irrigation-of-primary-teeth
#4
Farasat Moradi, Roza Haghgoo
Background: Bacteria are the main etiological factors in the development of dentinal caries and its progression to pulpal and periapical disease. Enterococcus faecalis is the bacterial species most frequently recovered from the root-filled teeth. Aim: This study aimed to evaluate the antimicrobial effectiveness of nanosilver (NS) solution as an endodontic irrigation solution of primary teeth against E. faecalis . Settings and Design: Thirty-six canals of primary teeth were selected for this ex vivo study...
September 2018: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/30264472/reciprocating-instrumentation-in-a-maxillary-primary-central-incisor-a-protocol-tested-in-a-3d-printed-prototype
#5
Rafael Dos Reis Moraes, Thaís Maria Pires Dos Santos, Marília Fagury Marceliano-Alves, Andreá Vaz Braga Pintor, Ricardo Tadeu Lopes, Laura Guimarães Primo, Aline de Almeida Neves
BACKGROUND: Efficient endodontic instrumentation of primary teeth is a challenge for paediatric dentists. AIM: To evaluate biomechanical outcomes of endodontic instrumentation with a reciprocating system in a polymer-prototyped primary maxillary central incisor. DESIGN: The specimen was systematically instrumented and micro-CT scanned before and after each file. The amount of debris, percentage of non-instrumented areas, removed dentin volume, and lower dentin thickness at specific points along the root canal were analyzed...
September 27, 2018: International Journal of Paediatric Dentistry
https://www.readbyqxmd.com/read/30255216/in-vitro-comparison-of-cyclic-fatigue-resistance-of-two-rotary-single-file-endodontic-systems-onecurve-versus-oneshape
#6
Marco Serafin, Matteo De Biasi, Vittorio Franco, Daniele Angerame
The aim of the present study was to evaluate the difference in cyclic fatigue resistance between OneCurve (OC) and OneShape (OS) endodontic single-file NiTi systems in a severely curved artificial canal. After sample size calculation (α = 0.01; β = 0.20; σ = 20.0; δ = 20.0), 25 OC and 25 OS files were used. An artificial canal with 60° angle and 5-mm radius of curvature was milled in a stainless-steel block reproducing the size and taper of the files used. The test device was electrically heated to maintain the environmental temperature at 37 °C...
September 25, 2018: Odontology
https://www.readbyqxmd.com/read/30243662/comparison-between-single-file-rotary-systems-part-1-efficiency-effectiveness-and-adverse-effects-in-endodontic-retreatment
#7
Adham A Azim, Howard H Wang, Mohamed Tarrosh, Katharina A Azim, Lucila Piasecki
INTRODUCTION: The aim of this study was to evaluate in vitro the performance of 3 single-file systems: WaveOne Gold Primary (WOG; Dentsply Sirona, Ballaigues, Switzerland), Hyflex EDM "one file" (EDM; Coltene/Whaledent, Alstatten, Switzerland), and XP Shaper (XP; FKG, La Chaux de Fonds, Switzerland), for nonsurgical endodontic retreatment on mandibular anterior teeth in regard to the amount of remaining filling material inside the canal, debris extrusion, and operation time...
September 19, 2018: Journal of Endodontics
https://www.readbyqxmd.com/read/30215147/efficacy-of-a-thermally-treated-single-file-compared-with-rotary-systems-in-endodontic-retreatment-of-curved-canals-a-micro-ct-study
#8
Débora Delai, Alexander Pompermayer Jardine, Letícia Boldrin Mestieri, Daiana Boijink, Vania Regina Camargo Fontanella, Fabiana Soares Grecca, Patrícia Maria Poli Kopper
OBJECTIVES: This study aimed to compare WaveOne Gold with ProTaper and RaCe systems regarding remaining filling material, apical transportation (AT), and working time (WT) after (i) filling removal and (ii) shaping of curved canals. METHODS: Thirty mesiobuccal canals of maxillary molars were prepared and filled. After 30 days, they were randomly assigned into three groups (n = 10), according to the instruments used for filling removal and shaping, respectively: WOG-WaveOne Gold Primary and Medium; PTG-ProTaper Retreatment and ProTaper Next; RCG-D-RaCe and RaCe...
September 13, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/30191111/curvature-height-and-distance-of-mb-canal-of-mandibular-molar-with-schneider-angle-and-its-comparison-with-canal-access-angle
#9
Manjunath H Malur, Anil Chandra
Aim: To measure the proposed curvature height and distance of MB canal of mandibular molar with Schneider angle and its comparison with canal access angle both before and after instrumentation, and to compare among each other with multiple linear regression analysis. Methodology: One hundred human mandibular first and second molars were used for the study. After endodontic access, a size 10 k-file was placed in the mesiobuccal canal extending to the apical foramen and radiographs were taken by using Radiovisiography...
September 2018: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/30174103/assessment-of-regaining-pulp-sensibility-in-mature-necrotic-teeth-using-a-modified-revascularization-technique-with-platelet-rich-fibrin-a-clinical-study
#10
Mohamed Nageh, Geraldine M Ahmed, Alaa A El-Baz
INTRODUCTION: The aim of the present study was to evaluate the possibility of regaining pulp sensibility in mature necrotic teeth using modified regenerative endodontic procedures by inducing bleeding in root canals and using platelet-rich fibrin (PRF). METHODS: Fifteen patients with necrotic pulp with symptomatic or asymptomatic apical periodontitis were included. At the first visit, the tooth was anesthetized, and an access cavity was performed. Mechanical preparation of root canals was performed using the standardized technique reaching apical canal preparation to K-file size #60-80...
October 2018: Journal of Endodontics
https://www.readbyqxmd.com/read/30173254/a-micro-computed-tomography-study-of-morphological-aspect-of-root-canal-instrumentation-with-protaper-next-and-one-shape-new-generation-in-mandibular-molars
#11
Diana Berechet, Ioana Alexandra Rad, Cristian Petru Berce, Bogdan Andrei Bumbu, Răvan Marius Vicaş, Mihail Claudius Berechet, Gheorghe Adrian Bumbu, Sanda Ileana Cîmpean
ProTaper Next (Dentsply Maillefer, Ballaigues, Switzerland) (PTN) and One Shape New Generation (MicroMéga, Besançon, France) (OSNG) belong to a relatively new generation of rotary nickel-titanium (NiTi) files. Scientists keep improving features of endodontic files in order to obtain anatomically shaped and cleaned root canals and avoid canal transportation, for a better outcome of the endodontic treatment. For the current study, the aim was to evaluate and assess the changes in root canal morphology after instrumentation with PTN and OSNG by using micro-computed tomography (CT)...
2018: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/30171777/evaluation-of-postoperative-pain-intensity-following-occlusal-reduction-in-teeth-associated-with-symptomatic-irreversible-pulpitis-and-symptomatic-apical-periodontitis-a-randomized-clinical-study
#12
R S Emara, H M Abou El Nasr, R M El Boghdadi
AIM: To assess the effect of occlusal reduction on postoperative pain following two visits root canal treatment in posterior mandibular teeth with symptomatic irreversible pulpitis and symptomatic apical periodontitis in a randomized clinical trial. METHODOLOGY: This trial was conducted in the outpatient clinic of the Endodontic Department of the Faculty of Oral and Dental Medicine, Cairo University in Egypt. Forty-four-patients diagnosed with symptomatic irreversible pulpitis and symptomatic apical periodontitis were randomly assigned into two equal groups...
September 1, 2018: International Endodontic Journal
https://www.readbyqxmd.com/read/30166873/comparing-profile-vortex-to-protaper-next-for-the-efficacy-of-removal-of-root-filling-material-an-ex-vivo-micro-computed-tomography-study
#13
Emad AlShwaimi
Aim: This study compared the efficacy of ProFile Vortex (PV) with that of ProTaper Next (PTN) for the removal of root canal filling material. Materials and methods: Twenty-six mesial canals of extracted mandibular first molars were instrumented, obturated with gutta-percha and sealant, and randomly allocated to a PTN (X3, X2, or X1) or PV group. The percentage of remaining material, amount of dentin removed, and extent of transportation were assessed using micro-computed tomography...
January 2018: Saudi Dental Journal
https://www.readbyqxmd.com/read/30166828/comparative-evaluation-of-efficiency-of-different-file-systems-in-terms-of-remaining-dentin-thickness-using-cone-beam-computed-tomography-an-in-vitro-study
#14
Nidhi Rathi Chaudhary, Deepti Jawa Singh, Rani Somani, Shipra Jaidka
Background: Endodontic therapy treats inside of the tooth and its success is based upon the triad of thorough canal debridement, effective disinfection, and obturation of the canal space. Thus, one of the most important steps is biomechanical preparation, which is the key stage of endodontic treatment with a predictive success factor if performed properly. Aim: The aim of the study is to evaluate and compare the cleaning efficiency of different file systems in terms of remaining dentin thickness...
July 2018: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/30150498/efficacy-of-rotary-and-hand-instrument-in-removing-gutta-percha-and-sealer-from-root-canals-of-endodontically-treated-teeth
#15
Amit Patil, Sheetal Mali, Deepak Hegde, Himmat Jaiswal, Hrishikesh Saoji, Dhairaysheel N Edake
AIM: One of the common dental procedures employed these days in patients with irreversible pulpitis is root canal therapy. In retreatment cases, it is necessary for complete removal of obturate gutta-percha (GP) from obturate root canal system. Various methods and techniques are available these days for this purpose. This study was aimed to assess the efficacy of D-RaCe files, ProTaper retreatment files, Mtwo retreatment files, and manual Hedstrom files (H-files) in removing filling materials from the root canals of the endodontically treated teeth...
August 1, 2018: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/30150497/mesiolingual-canal-prevalence-in-maxillary-first-molars-assessed-through-different-methods
#16
Alissa L Zurawski, Paula Lambert, Caroline Solda, Caroline Zanesco, Eduardo G Reston, Fernando B Barletta
AIM: Evaluate the prevalence of mesiolingual canal prevalence orifice in mesiobuccal roots of maxillary first molars using five methods of visualization. MATERIALS AND METHODS: About 73 first permanent maxillary molars were analyzed. Visual clinical analysis of the presence of the fourth canal was performed using a straight end-odontic exploratory probe (EXDG16®) and a K10 manual file (SybronEndo®). Dental elements that were not located on the fourth canal were analyzed with the aid of a magnifying glass (Zeiss®) with a 2...
August 1, 2018: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/30147418/endodontic-irrigants-different-methods-to-improve-efficacy-and-related-problems
#17
REVIEW
Mario Dioguardi, Giovanni Di Gioia, Gaetano Illuzzi, Enrica Laneve, Armando Cocco, Giuseppe Troiano
Shaping and cleaning a root canal system along with the preservation of the surrounding periodontal tissues are the principal goals of an endodontic treatment. While most of the attention is paid to the mechanical aspects of a root canal treatment, an essential feature of it is the irrigation. All over the years, many materials have been used to clean the root canal of a tooth, and certainly, the sodium hypochlorite (NaOCl) and ethylenediaminetetraacetic acid solutions are the most used and most reliable ones...
July 2018: European Journal of Dentistry
https://www.readbyqxmd.com/read/30147404/diffusion-of-calcium-hydroxide-through-dentinal-tubules-of-retreated-root-canals-an-in-vitro-study
#18
Mohammed Mustafa, Wafa Hassan Alaajam, Ahmed Abdul Azeim, Najla Aedh Alfayi, Rahaif Misfer Alqobty, Shahad Alghannam
Objective: Studies about the dispersion of hydroxyl ions through dentin of endodontically retreated teeth are scarce. The present study aims at examining the diffusion of calcium hydroxide in vitro by recording the pH changes of retreated root canal using two types of calcium hydroxide preparations. Materials and Methods: A total of 45 recently extracted single-rooted mandibular first premolars were collected and cleaned from calculus and remains of periodontal tissue...
July 2018: European Journal of Dentistry
https://www.readbyqxmd.com/read/30135850/revitalization-of-necrotic-mature-permanent-incisors-with-apical-periodontitis-a-case-report
#19
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/30122826/efficacy-of-various-solutions-in-preventing-orange-brown-precipitate-formed-during-alternate-use-of-sodium-hypochlorite-and-chlorhexidine-an-in-vitro-study
#20
Naveen Chhabra, Satish Gangaramani, Kiran Prabhakar Singbal, Krupa Desai, Kritika Gupta
Aim: The study evaluated the effectiveness of three intermediate endodontic irrigating solutions in eliminating the residual sodium hypochlorite (NaOCl), thus preventing the formation of the orange-brown precipitate when 2% chlorhexidine (CHX) is used as the final irrigant. Materials and Methods: A total of 40 extracted human maxillary anterior teeth were selected, disinfected, and decoronated to obtain a standardized length of 10 mm. The teeth were prepared with Protaper universal rotary files until size F4 using 2...
July 2018: Journal of Conservative Dentistry: JCD
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