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https://www.readbyqxmd.com/read/27901556/apical-transportation-during-removal-of-root-canal-filling-with-different-retreatment-systems
#1
Baran C Sağlam, Ersan Çiçek, Mustafa M Koçak, Sibel Koçak, Bağdagül H Kıvanç
INTRODUCTION: This study aimed to compare apical transportation during retreatment using ProTaper Universal retreatment (PTUR), Mtwo R and D-RaCe instruments in curved root canals. METHODS: 36 extracted mandibular molar teeth with curved mesiobuccal roots were selected. The teeth were embedded into acrylic blocks. The blocks were fixed on the experimental setup. After determining the working length (WL), mesiobuccal canals were prepared with ProTaper Universal rotary instruments to size F1 (20/0...
November 29, 2016: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/27895347/comparison-of-fracture-and-deformation-in-the-rotary-endodontic-instruments-protaper-versus-k-3-system
#2
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/27871483/vertical-load-induced-with-twisted-file-adaptive-system-during-canal-shaping
#3
Ahmed Jamleh, Khalid Alfouzan
INTRODUCTION: To evaluate the vertical load induced with the Twisted File Adaptive (TFA; SybronEndo, Orange, CA) system during canal shaping of extracted teeth by comparing it with the Twisted File (TF, SybronEndo), ProTaper Next (PTN; Dentsply Maillefer, Ballaigues, Switzerland), and ProTaper Universal (PTU, Dentsply Maillefer) systems. METHODS: Fifty-two root canals were shaped using the TFA, TF, PTN, or PTU systems (n = 13 for each system). They were shaped gently according to the manufacturers' instructions...
December 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27866000/effectiveness-of-final-decontamination-protocols-against-enterococcus-faecalis-and-its-influence-on-bond-strength-of-filling-material-to-root-canal-dentin
#4
Matheus Albino Souza, Daniel Dalla Lana, Ezequiel Gabrielli, Marlos Barbosa Ribeiro, Daniela Cristina Miyagaki, Doglas Cecchin
AIM: The aim of this study was to evaluate the effectiveness of final decontamination protocols against Enterococcus faecalis and their influence on bond strength of filling material to root canal dentin. MATERIAL AND METHODS: Ninety root canals were enlarged with ProTaper system and inoculated with E. faecalis for 15 days. Sixty samples were randomly divided into six groups (n=10) and subjected to following protocols: G1-distilled water(control), G2-2% chlorhexidine, G3-QMix, G4-6...
November 16, 2016: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/27862702/efficacy-of-xp-endo-finisher-and-trushape-3d-conforming-file-compared-to-conventional-and-ultrasonic-irrigation-in-removing-calcium-hydroxide
#5
Ahmet Demirhan Uygun, Eyüp Candaş Gündoğdu, Hakan Arslan, İbrahim Ersoy
The aim of this study was to compare the efficacy of the XP-endo Finisher and TRUShape 3D Conforming File to conventional and ultrasonic irrigation techniques for removing calcium hydroxide from artificially created grooves on root canals. The study used 32 human mandibular premolar teeth, which were decoronated and instrumented up to ProTaper Universal F5 (Dentsply Maillefer; Ballagiues, Switzerland). The teeth were split longitudinally, two standardised grooves were prepared in the apical and coronal portions and filled with calcium hydroxide...
November 12, 2016: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/27847752/screw-in-forces-during-instrumentation-by-various-file-systems
#6
Jung-Hong Ha, Sang Won Kwak, Sung-Kyo Kim, Hyeon-Cheol Kim
OBJECTIVES: The purpose of this study was to compare the maximum screw-in forces generated during the movement of various Nickel-Titanium (NiTi) file systems. MATERIALS AND METHODS: Forty simulated canals in resin blocks were randomly divided into 4 groups for the following instruments: Mtwo size 25/0.07 (MTW, VDW GmbH), Reciproc R25 (RPR, VDW GmbH), ProTaper Universal F2 (PTU, Dentsply Maillefer), and ProTaper Next X2 (PTN, Dentsply Maillefer, n = 10). All the artificial canals were prepared to obtain a standardized lumen by using ProTaper Universal F1...
November 2016: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/27847398/assessment-of-the-centralization-of-root-canal-preparation-with-rotary-systems
#7
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
https://www.readbyqxmd.com/read/27843508/influence-of-operator-s-experience-on-the-shaping-ability-of-protaper-universal-and-waveone-systems-a-comparative-study-on-simulated-root-canals
#8
Giuseppe Troiano, Mario Dioguardi, Armando Cocco, Giovanni Giannatempo, Luigi Laino, Domenico Ciavarella, Elio Berutti, Lorenzo Lo Muzio
OBJECTIVE: To assess the influence of operator experience on: shaping and centering ability, mean preparation time and presence of canal aberrations of ProTaper Universal and WaveOne systems on simulated root canals. MATERIALS AND METHODS: Sixty S-shaped canals in resin blocks were assigned to four groups (n=15 for each group). Group1 (Experienced operator, ProTaper), Group2 (Experienced operator, WaveOne), Group3 (Inexperienced operator, ProTaper), Group4 (Inexperienced operator, WaveOne)...
2016: Open Dentistry Journal
https://www.readbyqxmd.com/read/27834415/antimicrobial-influence-of-different-root-canal-filling-techniques-in-experimentally-infected-human-root-canals
#9
Christian Tennert, Tilman Schurig, Ali Al-Ahmad, Sabrina Lydia Strobel, Andrej M Kielbassa, Karl-Thomas Wrbas
OBJECTIVE: The aim of the present study was to evaluate the antimicrobial influence of different root canal filling techniques using gutta-percha and an epoxy resin-based sealer in experimentally infected root canals of extracted human teeth. METHOD AND MATERIALS: In total, 96 intact sterilized, permanent human anterior teeth and premolars with single patent root canals were prepared and infected with a clinical isolate of Enterococcus faecalis. After 72 hours, all root canals were sampled using three sterile paper points...
November 10, 2016: Quintessence International
https://www.readbyqxmd.com/read/27808450/comparative-analysis-of-saf-protaper-next-and-bt-race-in-eliminating-enterococcus-faecalis-from-long-oval-canals-an-ex-vivo-study
#10
Andreas Krokidis, Carlo Bonfanti, Antonio Cerutti, Nicola Barabanti, Spyros Zinelis, Panos Panopoulos
Comparison of the ability of newly designed rotary files to eliminate viable Enterococcus faecalis populations from long oval root canals of extracted human teeth to that of the self-adjusting file (SAF). One hundred caries-free, single-rooted, long oval teeth were contaminated with E. faecalis. The teeth were randomly distributed into four groups (n = 25) as follows: G.1, manual; G.2, SAF; G.3, ProTaper Next; and G.4, BT-Race. Two microbial samples were obtained from each tooth with sterile paper points, (s1) before and (s2) after instrumentation...
November 3, 2016: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/27790257/evaluation-of-the-fractured-surface-of-five-endodontic-rotary-instruments-a-metallurgical-study
#11
Mohsen Aminsobhani, Mohamad Saleh Khalatbari, Naghmeh Meraji, Abdollah Ghorbanzadeh, Ehsan Sadri
INTRODUCTION: The aim of this study was to compare several metallurgic properties of Neoniti instrument with four other commonly used endodontic rotary files. METHODS AND MATERIALS: Neoniti A1 (25/0.08), RaCe (25/0.06), Mtwo (25/0.06), Twisted file (25/0.06) and ProTaper Next X2 (25/0.06) were examined by differential scanning calorimetry (DSC) before and after heat treatment at 500(°)C. X-ray diffraction (XRD) was also performed on the specimens. Furthermore, scanning electron microscopy (SEM) and x-ray energy-dispersive spectrometric (EDS) analyses were carried out on randomly selected fractured files...
2016: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/27789910/evaluation-of-capacity-of-essential-oils-in-dissolving-protaper-universal-gutta-percha-points
#12
Thaís Isabel Ferreira Ramos, Andréa Cruz Câmara, Carlos Menezes Aguiar
PURPOSE: Solvents may be used to remove the filling materials. The purpose of this in vitro study was to evaluate and compare the efficacy of formulated orange oil, orange oil and formulated eucalyptol in dissolving F3 ProTaper Universal Gutta-percha points. MATERIAL AND METHODS: 200 samples were used and divided into four groups, further divided in fifty samples for each solvent. The samples were weighed on an analytical balance before being subjected to the action of solvents...
June 2016: Acta Stomatologica Croatica
https://www.readbyqxmd.com/read/27776878/evaluation-of-the-cyclic-fatigue-and-torsional-resistance-of-novel-nickel-titanium-rotary-files-with-various-alloy-properties
#13
Mehmet Emin Kaval, Ismail Davut Capar, Hüseyin Ertas
INTRODUCTION: The purpose of this study was to evaluate the cyclic fatigue and torsional resistance of Hyflex EDM, ProTaper Gold (PTG), and ProTaper Universal (PTU) instruments. METHODS: For the cyclic fatigue test, 10 instruments from each group were tested by using a stainless steel block with 1.5-mm diameter and 3-mm radius of 60° angle of curvature. The instruments were allowed to rotate by using a low-torque motor, and number of cycles from the beginning to the fracture was recorded...
October 21, 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27769680/evaluation-of-root-canal-dentin-erosion-after-different-irrigation-methods-using-energy-dispersive-x-ray-spectroscopy
#14
Zhejun Wang, Hazuki Maezono, Ya Shen, Markus Haapasalo
INTRODUCTION: The purpose of this study was to examine the level of erosion in root dentin caused by different irrigation methods and protocols. METHODS: Thirty-five extracted upper molar teeth were instrumented and divided into 7 groups to undergo treatment by different methods: negative control, GentleWave System (Sonendo Inc, Laguna Hills, CA), and syringe needle irrigation following different protocols. The teeth were instrumented to size #25/.08 or #30/.09 for needle irrigation groups and to ProTaper size S1 for the GentleWave group under 5% sodium hypochlorite (NaOCl)...
October 18, 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27716153/evaluation-of-bond-strength-of-various-epoxy-resin-based-sealers-in-oval-shaped-root-canals
#15
Fatih Cakici, Elif Bahar Cakici, Kadir Tolga Ceyhanli, Ersan Celik, Funda Fundaoglu Kucukekenci, Arif Onur Gunseren
BACKGROUND: The aim of this study was to evaluate the bond strength of AH plus, Acroseal, and Adseal to the root canal dentin. METHODS: A total of 36 single-rooted, mandibular premolar teeth were used. Root canal shaping procedures were performed with ProTaper rotary instruments (Dentsply Maillefer) up to size F4. The prepared samples were then randomly assembled into 3 groups (n = 12). For each group, an ultrasonic tip (size 15, 0.02 taper) which was also coated with an epoxy resin based sealer and placed 2 mm shorter than the working length...
September 30, 2016: BMC Oral Health
https://www.readbyqxmd.com/read/27706822/efficiency-and-apical-extrusion-of-debris-a-comparative-ex%C3%A2-vivo-study-of-four-retreatment-techniques-in-severely-curved-root-canals
#16
I Kaşıkçı Bilgi, I Köseler, P Güneri, M Hülsmann, M K Çalışkan
AIM: To compare the amount of apically extruded debris and of remaining filling material during the removal of root canal filling material using three rotary NiTi retreatment instruments or Hedström files. METHODOLOGY: Ninety-six severely curved human molars of both jaws were selected. The root canals were prepared to size X2 (tip size 25, .06 taper) using the ProTaper Next system (Dentsply Sirona, Ballaigues, Switzerland), filled with gutta-percha and AH Plus sealer (Dentsply De Trey, Konstanz, Germany) and then randomly divided into four experimental groups (n = 24 each) with two subgroups of maxillary and mandibular teeth each...
October 5, 2016: International Endodontic Journal
https://www.readbyqxmd.com/read/27703601/in-vitro-evaluation-of-efficacy-of-different-rotary-instrument-systems-for-gutta-percha-removal-during-root-canal-retreatment
#17
Mercy Joseph, Jyoti Ahlawat, Amit Malhotra, Murali Rao, Abhimanyu Sharma, Sangeeta Talwar
BACKGROUND: Complete removal of old filling material during root canal retreatment is fundamental for predictable cleaning and shaping of canal anatomy. Most of the retreatment methods tested in earlier studies have shown inability to achieve complete removal of root canal filling. Therefore the aim of this investigation was to assess the efficacy of three different rotary nickel titanium retreatment systems and Hedstrom files in removing filling material from root canals. MATERIAL AND METHODS: Sixty extracted mandibular premolars were decoronated to leave 15 mm root...
October 2016: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/27688413/evaluation-of-microbial-reduction-in-root-canals-instrumented-with-reciprocating-and-rotary-systems
#18
Bruna Paloma DE Oliveira, Carlos Menezes Aguiar, Andréa Cruz Câmara, Miracy Muniz DE Albuquerque, Ana Cristina Regis DE Barros Correia, Monica Felts DE LA Roca Soares
OBJECTIVE: This in vitro study aimed to evaluate the efficacy of the disinfection of root canal systems carried out with Reciproc(TM) and ProTaper Universal(TM) systems using 1% sodium hypochlorite (NaOCl). METHODS: Forty human single-rooted mandibular premolars were infected with Enterococcus faecalis, Pseudomonas aeruginosa, Staphylococcus aureus and Candida albicans, and twenty were not infected. The specimens were randomly divided into 6 groups (n = 10): Group 1: ProTaper Universal(TM) + 1% NaOCl; Group 2 (positive control): ProTaper Universal(TM) + saline; Group 3 (negative control without microorganisms): ProTaper Universal(TM) + saline; Group 4: Reciproc(TM) + 1% NaOCl; Group 5 (positive control): Reciproc(TM) + saline; Group 6 (negative control without microorganisms): Reciproc(TM) + saline...
December 2015: Acta Stomatologica Croatica
https://www.readbyqxmd.com/read/27669727/evaluation-of-root-canal-transportation-centering-ratio-and-remaining-dentin-thickness-of-trushape-and-protaper-next-systems-in-curved-root-canals-using-micro-computed-tomography
#19
Amr M Elnaghy, Ayman A Al-Dharrab, Hisham M Abbas, Shaymaa E Elsaka
OBJECTIVE: To evaluate and compare the volume of removed dentin, transportation, and centering ability of TRUShape (TRS; Dentsply Tulsa Dental Specialties) system with ProTaper Next (PTN; Dentsply Maillefer) by using micro-computed tomography (μCT). METHOD AND MATERIALS: Twenty extracted human mandibular first molars with two separate mesial canals with curvatures of 25 to 35 degrees were divided into two experimental groups (n = 20) according to the rotary nickel-titanium file system used in canal instrumentation as follows: group TRS and group PTN...
September 26, 2016: Quintessence International
https://www.readbyqxmd.com/read/27665980/scanning-electron-microscopy-with-energy-dispersive-x-ray-spectrophotometry-analysis-of-reciprocating-and-continuous-rotary-nickel-titanium-instruments-following-root-canal-retreatment
#20
Elif Kalyoncuoğlu, Cangül Keskin, İsmail Uzun, Aydın S Bengü, Buğra Guler
This study aimed to evaluate superficial defects and the composition of Reciproc R25 and ProTaper Retreatment file systems (Dentsply Maillefer, Ballaigues, Switzerland) used for retreatment. A total of 100 maxillary incisor teeth were randomly divided into the following two groups: Reciproc R25 (n = 25) and ProTaper Retreatment instrument (n = 75) groups. The nickel-titanium (Ni-Ti) compositions of the files before and after use were analyzed using energy dispersive X-ray spectrophotometry (EDX). Chi-square, Mann-Whitney U, and Kruskal-Wallis tests were used to analyze the data...
2016: Journal of Oral Science
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