Título: | Comparison of two canal preparation techniques using Mtwo rotary instruments |
Autores: |
Hamze, Faeze; Assistant Professor of Operative Dentistry, Dental School, Kerman University of Medical Sciences, Kerman, Iran Honardar, Kiamars; Assistant Professor of Endodontics, Shahed University of Medical Sciences, Tehran, Iran. Nazarimoghadam, Kiumars; Associated Professor of Endodontics, Shahed University of Medical Sciences, Tehran, Iran |
Fecha: | 2011-09-27 |
Publicador: |
Iranian Endodontic Journal محله ایرانی اندودونتیکس |
Fuente: |
Ver documento |
Tipo: |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
Tema: | Curvatures, Instrumentation, Nickel-Titanium, Root canal preparation. |
Descripción: | INTRODUCTION: Root canal preparation is an important process in endodontic therapy. Nickel-titanium (NiTi) rotary file system can be used in single length technique (simultaneous technique) without early coronal enlargement, as well as in crown-down method. The purpose of this in vitro study was to compare single length with crown-down methods’ shaping ability using Mtwo NiTi files.MATERIALS & METHODS: Fifteen acrylic-resin blocks containing simulated canals were divided into two experimental groups. In group A, single length technique was used and in group B root canals were prepared by crown-down technique. Pre- and post-preparation canals were photographed in a standardized manner and were superimposed. The inner and outer walls of canal curvature were evaluated at three points (apical, middle and coronal) to determine the greatest change. The data was statistically analyzed using the Student t-test by Statistical Analysis System (SAS) software. RESULTS: Statistical analysis revealed that in group B, dentine was equally removed within the canal coronal to the curvature, whereas in group A, the inner wall was predominantly removed (P < 0.01). The two groups had no significant difference at the apical and middle points of the canal curvature.CONCLUSION: Our in vitro study revealed no significant difference between the single length method and crown-down technique using Mtwo for preparation of apical and middle portion of canal curvature. |
Idioma: | Inglés |
1 Effect of Different Luting Cements on Fracture Resistance in Endodontically Treated Teeth por Mohammadi, Narmin; Department of Operative Dentistry, Dental School, Tabriz University of Medical Sciences, Tabriz, Iran,Ajami, Amir Ahmad; Department of Operative Dentistry, Dental School, Tabriz University of Medical Sciences, Tabriz, Iran,Kimyai, Soodabeh; Department of Operative Dentistry, Dental School, Tabriz University of Medical Sciences, Tabriz, Iran,Rezaei Aval, Mojdeh; Department of Operative Dentistry, Dental School, Babol University of Medical Sciences, Babol, Iran | 6 A Digital Stereomicroscopic Study of the Furcation Wall Thickness of Mesiobuccal Roots of Maxillary First and Second Molars por Shahravan, Arash; Department of Endodontics, Dental School, Kerman University of Medical Sciences, Kerman Oral and Dental Diseases Research Center, Kerman, Iran,Rekabi, Alireza; Department of Endodontics, Dental School, Kerman University of Medical Sciences, Kerman, Iran.,Shahabi, Hasan; Department of Endodontics, Dental School, Kerman University of Medical Sciences, Kerman, Iran.,Ashuri, Rezvan; Department of Endodontics, Dental School, Kerman University of Medical Sciences, Kerman, Iran.,Mirzazadeh, Ali; MPH in Epidemiology and Biostatistics, Physiology Research Center, Kerman University of Medical Sciences, Kerman, Iran.,Rad, Maryam; Department of Oral Medicine, Dental School, Kerman University of Medical Sciences, Kerman Oral and Dental Diseases Research Center, Kerman, Iran.,Haghani, Jahangir; Department of Radiology, Dental School, Kerman University of Medical Sciences, Kerman Oral and Dental Diseases Research Center, Kerman, Iran |
2 Surgical alternative for treatment of vertical root fracture: A case report por Silva, Emmanuel João Nogueira Leal da; Piracicaba Dental School - State University of Campinas,Santos, Gustavo Romão dos; UERJ,Krebs, Renato Liess; UERJ,Coutinho-Filho, Tauby de Souza; UERJ | 7 Repair of an Extensive Furcation Perforation with CEM Cement: A Case Study por Eghbal, Mohammad Jafar,Fazlyab, Mahta,Asgary, Saeed |
3 Particle size of a new endodontic cement compared to Root MTA and calcium hydroxide por Soheilipour, Elham; Researcher, Dental Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Kheirieh, Sanam; Researcher, Iranian Center for Endodontic Research, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Madani, Majid; Researcher, Sympatec Co., Tehran, Iran.,Akbarzadeh Baghban, Alireza; Department of Biostatistics, Paramedical School, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Asgary, Saeed; Department of Endodontics, Iranian Center for Endodontic Research, Dental Research Center, Dental School, Shahid Beheshti University of Medical Sciences, Tehran, Iran. | 8 A Comparative Study on Rotary Mtwo Versus Passive Step Back of Hand K-File in Preparation of Extracted Curved Root Canals por Laaya, Safi; Department of Endodontics, Dental School, Shiraz University of Medical Science, Shiraz, Iran,Khojastehpour, Leila; Department of Oral Radiology, Dental School, Shiraz University of Medical Sciences, Shiraz, Iran,Layeghnejad, Abdol Hosein; General Practitioner.,Layeghnejad, Abdol Hosein; General Practitioner, Shiraz, Iran |
4 Spiral Computed Tomographic Evaluation and Endodontic Management of a Mandibular Second Molar with Four Roots. A Case Report and Literature Review por Purra, Aamir Rashid,Mushtaq, Mubashir,Farooq, Riyaz,Farooq, Riyaz | 9 Sealing ability promoted by three different endodontic sealers por Silva, Graziele; State University of Southwest Bahia,Silva, Emmanuel João Nogueira Leal da; Piracicaba Dental School - State University of Campinas,Silva, Juliana Melo da; Federal University of Pará,Andrade-Júnior, Carlos Vieira; State University of Southwest Bahia,Ferraz, Caio César Randi; Piracicaba Dental School - State University of Campinas |
5 A Comparison between the Raypex5 Apex Locator and Conventional Radiography for Determining Working Length of Straight and Curved Canals por Sadeghi, Shiva; Department of Endodontics, Dental School, Guilan University of Medical Sciences, Rasht, Iran,Abolghasemi, Masoomeh; Private practice, Rasht, Iran | 10 Working Length Changes Following Straight-Line Access and Different Coronal Flaring Methods por Sadeghi, Shiva; Department of Endodontics, Dental School, Guilan University of Medical Sciences, Rasht, Iran,Doago, Zeinab; General Practitioner, Rasht, Iran |