Nicola Maria Grande1, Hany Mohamed Aly Ahmed2, Stephen Cohen3, Frédéric Bukiet4, Gianluca Plotino5. 1. Catholic University of Sacred Heart, Rome, Italy. 2. School of Dental Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia. 3. Arthur A Dugoni School of Dentistry, University of the Pacific, San Francisco, California. 4. UFR Odontologie de Marseille, Aix Marseille Université, Assistance Publique des Hôpitaux de Marseille, France; Laboratoire Biologie Santé et Nanosciences, Montpellier, France. 5. Sapienza University of Rome, Rome, Italy. Electronic address: endo@gianlucaplotino.com.
Abstract
INTRODUCTION: During the evolution of mechanical instrumentation in endodontics, an important role has been played by reciprocating stainless steel files using horizontal rotational, vertical translational, or combined movements. These kinds of systems are still in use mainly as an accessory to help in the first phases of the treatment. METHODS: The literature concerning these systems has been analyzed using selected criteria. RESULTS: The latest evolution of horizontal rotational reciprocating movement brought to the development of a different kind of movement in which the angles are asymmetrical and that appears to be ideal in conjunction with modern nickel-titanium (NiTi) files with a greater taper. Initially, this movement was limited to particular handpieces available on the market that was used with existing NiTi files to complete root canal instrumentation. Later on, specific files and proprietary motors were introduced into the market. The differences between reciprocating motion used for NiTi and stainless steel files are described and critically analyzed. CONCLUSIONS: A classification of the different mechanical reciprocating motions used is presented, thus enabling an easier understanding of these systems and anticipated future developments.
INTRODUCTION: During the evolution of mechanical instrumentation in endodontics, an important role has been played by reciprocating stainless steel files using horizontal rotational, vertical translational, or combined movements. These kinds of systems are still in use mainly as an accessory to help in the first phases of the treatment. METHODS: The literature concerning these systems has been analyzed using selected criteria. RESULTS: The latest evolution of horizontal rotational reciprocating movement brought to the development of a different kind of movement in which the angles are asymmetrical and that appears to be ideal in conjunction with modern nickel-titanium (NiTi) files with a greater taper. Initially, this movement was limited to particular handpieces available on the market that was used with existing NiTi files to complete root canal instrumentation. Later on, specific files and proprietary motors were introduced into the market. The differences between reciprocating motion used for NiTi and stainless steel files are described and critically analyzed. CONCLUSIONS: A classification of the different mechanical reciprocating motions used is presented, thus enabling an easier understanding of these systems and anticipated future developments.
Authors: Thaís Christina Cunha; Felipe de Souza Matos; Luiz Renato Paranhos; Ítalo de Macedo Bernardino; Camilla Christian Gomes Moura Journal: BMC Oral Health Date: 2020-06-22 Impact factor: 2.757
Authors: Christine Men Martins; Victor Eduardo De Souza Batista; Amanda Caselato Andolfatto Souza; Ana Cristina Andrada; Graziela Garrido Mori; João Eduardo Gomes Filho Journal: J Conserv Dent Date: 2019 Jul-Aug