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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
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
I Kaşikçi Bilgi, I Köseler, P Güneri, M Hülsmann, M K Çalişkan
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 were randomly divided into 4 experimental groups (n= 24 each) with two subgroups of maxillary and mandibular teeth each...
October 5, 2016: International Endodontic Journal
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
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
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
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
C S Preetam, M Chandrashekhar, T Gunaranjan, S Kishore Kumar, S A Miskeen Sahib, M Senthil Kumar
AIM: The purpose of this study is to achieve an effective method to remove root canal filling material from the root canal system. The study, thus, aims to evaluate the efficacy of the cleaning ability of two different rotary Ni-Ti systems; ProTaper Retreatment files and RaCe System compared to hand instrumentation with Hedstrom files for the removal of gutta-percha during retreatment. MATERIALS AND METHODS: Thirty mandibular premolars with one single straight canal were decoronated and instrumented with ProTaper files and filled with thermoplastic gutta-percha...
August 2016: Journal of International Society of Preventive & Community Dentistry
Himani Garg, Mandeep S Grewal
INTRODUCTION: A separated instrument within the root canal may interfere in the successful outcome of endodontic treatment. The retrieval of fractured instruments might compromise the remaining tooth structure and subsequently resistance to tooth fracture. The aim of this study was to compare the change in volume of root canal and dentin thickness after retrieval of separated instrument by 2 different endodontic ultrasonic tips. METHODS: Each of the instruments (EMS Endochuck and ProUltra #6, #7, and #8 tips) was used to remove 40 separated rotary ProTaper F2 instruments from the mesiobuccal roots of mandibular molar under ×15 magnification...
September 13, 2016: Journal of Endodontics
Manju Raj Kumari, Manjunath Mysore Krishnaswamy
INTRODUCTION: Success of any endodontic treatment depends on strict adherence to 'endodontic triad'. Preparation of root canal system is recognized as being one of the most important stages in root canal treatment. At times, we inevitably end up damaging root dentin which becomes a Gateway for infections like perforation, zipping, dentinal cracks and minute intricate fractures or even vertical root fractures, thereby resulting in failure of treatment. Several factors may be responsible for the formation of dentinal cracks like high concentration of sodium hypochlorite, compaction methods and various canal shaping methods...
July 2016: Journal of Clinical and Diagnostic Research: JCDR
S Gupta, A Paliwal, S Patel, M Bhati, Fyi Asiri, A H Shah
Aim: Comparative analysis of the coronal microleakage of a self-etching priming dentin adhesive with the use of antioxidant (Sodium Ascorbate (SA) and herbal quercetin) after Sodium hypochloride (NaOCl) and hydrogen-peroxide (H 2O2) irrigation. Materials and Methods: Seventy single root canals were enlarged and seven different treatment protocols were applied throughout the root canal treatment. The groups 1, 2 and 3 were irrigated with NaOCl. Group 1 was used as the negative control with only NaOCl irrigation whereas in group 2, Sodium ascorbate was applied as an additional irrigation agent following NaOCl...
October 15, 2015: West Indian Medical Journal
A M Elnaghy, S E Elsaka
AIM: To assess and compare the mechanical properties of TRUShape (TRS) with several nickel-titanium rotary instruments. METHODOLOGY: Cyclic fatigue, torsional resistance, flexibility and surface microhardness of TRS (size 25/.06v taper), ProTaper Next X2 (PTN X2; size 25/.06 taper), ProTaper Gold (PTG F2; size 25/.08 taper) and ProTaper Universal (PTU F2; size 25/.08 taper) instruments were evaluated. The topographic structures of the fracture surfaces of instruments were assessed using a scanning electron microscope...
September 12, 2016: International Endodontic Journal
M S Barreto, R A Rosa, V G Seballos, E Machado, L F Valandro, O B Kaizer, Mvr Só, Cas Bier
OBJECTIVE: The aim of this study was to evaluate the effect of five intracanal irrigants on bond strength of fiber posts cemented with newer self-adhesive resin cement. METHODS: A total of 60 extracted, single-rooted human premolars, sectioned at 14 mm, were prepared with the ProTaper Universal system with a size F3 instrument and filled with an F3 master cone and AH Plus. The root canal filling was partially removed, leaving 4 mm of apical gutta-percha. Specimens were randomly assigned to five groups (n=12), according to the solution used for dentin surface treatment before fiber post cementation, as follows: EDTA 17% (EDTA); QMix (QM); SmearClear (SC); 2...
September 7, 2016: Operative Dentistry
Z Wu, X J Guo, F Qiao, L G Wu
OBJECTIVE: To evaluate antibacterial and residual antimicrobial activities of five root canal irrigants including Qmix, MTAD(mixture of a tetracycline isomer, an acid, and a detergent), 0.2% cetrimide(CTR), 2% chlorhexidine(CHX) and 17% ethylene diaminetetraacetic acid(EDTA) and to find the most optimal final irrigants for using in root canal therapy. METHODS: The standard enterococcus infection models were built up in 100 single rooted incisors with single canal...
September 2016: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
S Kiran, Sandeep Prakash, Pujari R Siddharth, Supradip Saha, Naiza E Geojan, Mookambika Ramachandran
INTRODUCTION: The effect of smear layer and debris on the success rate of endodontic treatment has not yet been definitely determined. So the present study was aimed to evaluate the amount of smear layer and debris on the canal walls prepared with a combination of hand and rotary ProTaper technique using NaOCl and ethylenediaminetetraacetic acid (EDTA) alternately as root canal irrigants using scanning electron microscope (SEM). MATERIALS AND METHODS: Eighty intact freshly extracted human permanent mandibular premolar teeth were collected and randomly divided equally into four groups...
2016: Journal of Contemporary Dental Practice
Neha Deepak Khalap, Sharad Kokate, Vibha Hegde
AIM: To compare the smear layer and debris removal in root canals instrumented with two different kinematic motions after ultrasonic and sonic irrigation activation. MATERIALS AND METHODS: Eighty freshly extracted teeth were selected for the study and randomly divided the samples into two groups (n = 40) for instrumentation with either rotary ProTaper NEXT (PTN) or reciprocating WaveOne (WO) file systems. These (n = 40) were further divided into two groups (n = 20) where the final irrigant was activated using either Ultrasonics (Passive Ultrasonic Irrigation; PUI) or Sonics (EndoActivator; EA)...
July 2016: Journal of Conservative Dentistry: JCD
Ersan Çiçek, Mustafa Murat Koçak, Sibel Koçak, Baran Can Sağlam
BACKGROUND: The type of instrument affects the amount of debris extruded. The aim of this study was to compare the effect of retreatment systems and supplementary file application on the amount of apical debris extrusion. MATERIALS AND METHODS: Forty-eight extracted mandibular premolars with a single canal and similar length were selected. The root canals were prepared with the ProTaper Universal system with a torque-controlled engine. The root canals were dried and were obturated using Gutta-percha and sealer...
July 2016: Journal of Conservative Dentistry: JCD
Hüseyin Sinan Topçuoğlu, Ahmet Aktı, Gamze Topçuoğlu, Salih Düzgün, Özge Ulusan, Firdevs Akpek
BACKGROUND: This study evaluated the efficacy of a sonic device (Vibringe), passive ultrasonic irrigation (PUI), and conventional syringe irrigation (CSI) in the removal of triple antibiotic paste (TAP) from artificial standardized grooves in the apical and coronal thirds of a root canal. MATERIALS AND METHODS: One-hundred eighteen root canals were prepared using the ProTaper system. The roots were split longitudinally, and a standardized groove was prepared in the apical and coronal parts of one segment...
July 2016: Journal of Conservative Dentistry: JCD
Jogikalmat Krithikadatta, Vadhana Sekar, Paramanantham Sudharsan, Natanasabapathy Velumurugan
AIM: This randomized, controlled trial evaluated the incidence of postinstrumentation pain on using two different rotary Ni-Ti and one reciprocating Ni-Ti cleaning and shaping systems. MATERIALS AND METHODS: Asfter sample size estimation, a total of 152 patients were randomized to three groups (Group WO [WaveOne], Group PU [ProTaper Universal], and Group Mt [Mtwo]). Selection of patients was based on root curvature, periapical lesion, vitality, gender, and diagnosis of the patient...
July 2016: Journal of Conservative Dentistry: JCD
Tuomas K Niemi, Melissa A Marchesan, Adam Lloyd, Robert J Seltzer
INTRODUCTION: The aim of this study was to compare the effectiveness of TRUShape (TS) instruments with ProFile Vortex Blue (VB) instruments for the removal of obturation materials during retreatment of single-canal mandibular premolars performed through 2 access outlines. METHODS: Initial root canal treatment was completed through a contracted endodontic cavity (CEC) design. Canals were instrumented to an F2 ProTaper instrument, obturated with warm lateral condensation of gutta-percha with AH Plus sealer, and allowed to set for 30 days at 37°C and 100% humidity...
October 2016: Journal of Endodontics
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