Shaping for cleaning the root canals : a clinical based strategy / / Gustavo De Deus [and four others], editors

• Record Nr.: UNINA9910523801403321
• Pubbl/distr/stampa: Cham, Switzerland : , : Springer, , [2022]; ©2022
• ISBN: 3-030-84617-2
• Descrizione fisica: 1 online resource (376 pages)
• Disciplina: 617.6342
• Soggetti: Endodontics; Dental pulp cavity; Dentistry
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Nota di bibliografia: Includes bibliographical references.
• Nota di contenuto: Intro -- Foreword -- Preface -- Contents -- Contributors -- 1: Classical Cleaning &amp -- Shaping: Historical Cornerstones -- 1.1 Historical Development of Shaping Concepts -- 1.2 Classical Cleaning &amp -- Shaping Concept by Schilder -- 1.3 From the 1980s to the 1990s -- 1.4 Overfast Mechanical Shaping: An Undeniable Current Reality -- 1.5 What Should Be the Main Target in Endodontics? Speed or Quality? -- References -- 2: Shaping for Cleaning: Reconsidering Root Canal Debridement -- 2.1 How Effectively Can We Debride? -- 2.1.1 The "Fake Iceberg Illusion" -- 2.1.2 Debridement Deficit -- 2.1.3 Unnecessary Root Dentin Removal -- 2.1.4 Accumulated Hard-Tissue Debris -- 2.2 The Overload on the Shoulders of Irrigation -- 2.3 The Shaping for Cleaning Concept -- 2.4 What to Do After Shaping? Maximizing the NaOCl Intracanal Time -- 2.4.1 NaOCl as a Non-agitated Intra-Visit Medication -- 2.4.2 Updated Syringe-Needle Irrigation: A Close-to-WL Approach -- 2.4.3 Handling the Vapor Lock Phenomenon -- 2.4.4 The Role of the Patency File -- 2.4.5 Negative Apical Pressure Irrigation -- 2.4.6 Is It Still Necessary to Agitate the NaOCl? -- 2.4.6.1 Sonic and Ultrasonic Irrigation -- 2.4.6.2 Manual Dynamic Activation (MDA) Technique -- 2.4.6.3 Continuous Instrumentation and Irrigation: The Self-Adjusting File (SAF) System -- 2.4.7 Chelating Agents: Washing out the Biofilm? ; -- 2.5 Shaping for Cleaning Irrigation: Clinical Guidelines -- References -- 3: The Glide Path Matter -- 3.1 Introduction -- 3.2 Definitions -- 3.2.1 Natural Path -- 3.2.2 Canal Scouting -- 3.2.3 Apical Patency -- 3.2.4 Glide Path -- 3.3 Micro Glide Path -- 3.3.1 Guidelines for Canal Scouting -- 3.3.2 Guidelines for Establishing the Apical Patency -- 3.3.3 Challenges in Scouting and Patency Procedures -- 3.3.3.1 Easily Negotiable Root Canals.; 3.3.3.2 Root Canals with Difficult Negotiation -- 3.3.3.3 Non-negotiable Apical Canal Anatomies -- 3.4 The Glide Path Per Se -- 3.4.1 Manual Glide Path Preparation -- 3.4.2 Glide Path Using Hand Files in Dedicated Oscillatory Pneumatic Contra-Angles -- 3.4.3 Rotary NiTi Glide Path Preparation -- 3.4.3.1 PathFile -- 3.4.3.2 ScoutRaCe -- 3.4.3.3 ProGlider -- 3.4.3.4 The Critical Role of Micro Glide Path for Rotary Pathfinder Instruments -- 3.4.4 Reciprocating NiTi Glide Path Preparation -- 3.4.4.1 WaveOne Gold Glider -- 3.4.4.2 R-Pilot -- 3.5 Concluding Remarks -- References -- 4: NiTi Rotary Systems: From Revolution to the "More of the Same" Phenomenon -- 4.1 Nickel-Titanium Alloy: History and Properties -- 4.2 NiTi Alloys and Specific Features -- 4.2.1 Austenitic NiTi Alloy -- 4.2.1.1 Conventional NiTi Alloy -- 4.2.1.2 Electropolishing Treatment -- 4.2.1.3 M-Wire -- 4.2.1.4 R-Phase -- 4.2.2 Martensitic NiTi Alloy -- 4.2.2.1 CM-Wire -- 4.2.2.2 Electrical Discharge Machining -- 4.2.2.3 Gold and Blue Wires -- 4.2.3 MaxWire -- 4.3 The Genealogical Tree of NiTi Systems -- 4.3.1 The Patriarchs (First Generation) -- 4.3.2 Improving Metallurgical Properties (Second Generation) -- 4.3.3 Heat Treatment Is the Pathway to Follow! (Third Generation) -- 4.3.4 No! Kinematic Is Better (Fourth Generation) -- 4.3.5 The Asymmetrical Proposition (Fifth Generation) -- 4.4 Clinical Recommendations for Safe Use -- 4.5 Rotary NiTi Systems: "The MORE of the SAME" Phenomenon -- References -- 5: Reciprocating Movement: Mastering the Mechanical Preparation -- 5.1 Reciprocating Steel Instruments: The First Beginning! -- 5.2 Asymmetric Angles: The Rebirth of Reciprocating Movement -- 5.2.1 The Story of Reciprocating Movement with NiTi Instruments -- 5.3 Reciprocating Systems -- 5.3.1 Reciproc M-Wire.; 5.3.1.1 Manufacturer Guidelines (Fig. 5.12) -- 5.3.2 Reciproc Blue -- 5.3.3 WaveOne Gold -- 5.3.3.1 Manufacturer Guidelines (Fig. 5.17) -- 5.3.4 Race Evo R-Motion -- 5.3.4.1 Manufacturer Guidelines (Fig. 5.19) -- 5.4 Reciprocating Motors -- 5.4.1 Dedicated Electronic Motors -- 5.4.2 Air-Driven Contra-Angle -- 5.5 The R25: A Multitasking Single-File Instrument -- 5.5.1 Is Reciproc a Single-Use Instrument? -- 5.5.2 Reciprocation and the Coronal Preflaring Procedure -- 5.5.3 Is Glide Path Mandatory for Canal Preparation with Reciprocating Movement? -- 5.5.4 Feedback of the R25 Instrument -- 5.6 Finally, Low Risk of Fracture! -- 5.7 Rational Approach for Reciprocating Preparation of Root Canals: A Clinical Perspective -- 5.7.1 Main Reasons for Using Reciprocating Instruments -- 5.7.2 A Simple and Easy to Learn Workflow -- 5.8 Concluding Remarks: Reasons Why Reciprocation Is Not "More of the Same" -- References -- 6: Scientific and Educational Aspects of Reciprocating Movement -- 6.1 Introduction -- 6.2 Scientific Aspects of Reciprocating Movement -- 6.2.1 Cyclic Fatigue Resistance -- 6.2.2 Torsional Resistance -- 6.2.3 Cutting Efficiency -- 6.2.4 Shaping Ability -- 6.2.5 Microcrack Formation -- 6.2.6 Preparation Time -- 6.2.7 Accumulated Hard Tissue Debris and Debris Extrusion -- 6.2.8 Disinfection Ability: Reduction of Bacterial Load and Toxins -- 6.2.9 Clinical Performance: Postoperative Pain -- 6.3 Educational Aspects of Reciprocating Movement -- References -- 7: Shaping for Cleaning in Retreatment Cases -- 7.1 Introduction -- 7.1.1 Predictability ; of the Initial Endodontic Treatment -- 7.1.2 Success and Clinical Practice -- 7.1.3 Purpose of Retreatment -- 7.1.4 The Filling Materials -- 7.2 When Is Retreatment Possible? -- 7.2.1 Access Preparation and Retreatment.; 7.2.2 The Critical Last Millimeters: Regaining the Apical Patency -- 7.2.3 Anatomical Diameter of the Apical Foramen: To Enlarge or Not to Enlarge? -- 7.3 Effects of Gutta-Percha Removal in the Canal Walls -- 7.3.1 Getting Rid of the Bulk-Filling Material: Solvent, Burs, and Files -- 7.3.2 Challenges: Oval Canals, Irregularities, and Isthmuses -- 7.4 Root Canal Reshaping -- 7.4.1 Vertical Extent of Instrumentation -- 7.4.2 Which Is the Best File for Retreatment? -- 7.4.3 Interappointment Medication: Actual Scientific Status -- 7.5 Suggested Clinical Protocol -- 7.5.1 Case Planning: Anatomical Knowledge with 3D Visualization of the Canals -- 7.5.2 Instruments and Materials -- 7.5.3 New Instruments and Approaches to Deal with the Remaining Gutta-Percha -- 7.5.4 Main Clinical Protocol -- 7.5.4.1 Removal of the Bulk Filling Material (Fig. 7.15) -- 7.5.4.2 Regain Apical Patency (Fig. 7.16a, b) -- 7.5.4.3 Reshaping the Canals at the Established Working Length (Fig. 7.16c) -- 7.6 Final Considerations -- 7.6.1 How to Determine the Outcome in Retreatment Cases -- 7.6.1.1 Healing: Grouped into Two Types -- 7.6.1.2 Disease -- 7.6.2 Selective Root Canal Retreatment -- References -- 8: Managing Canal Anatomies in the Context of Shaping for Cleaning Proposal -- 8.1 The Importance of Anatomical Knowledge of Root Canals in Clinical Practice -- 8.2 Applied Anatomy: What We Really Need to Know About Each Group of Teeth -- 8.2.1 Root Canal Complexities: Rule or Exception? -- 8.2.2 One Root Means a Single Canal? -- 8.2.3 Anterior Teeth: Are They the Easiest Teeth to Treat? -- 8.2.4 The Hidden Secrets of Premolars -- 8.2.5 The Complexities of Molar Teeth -- 8.2.6 The "Critical Apical Zone": Is It Really Critical? -- 8.3 Anatomical Factors and Their Impact on the Prognosis of Root Canal Treatment.; 8.4 Anatomical Factors in Practice for Treating Complex Anatomies -- 8.4.1 Diagnostic Tools to Identify Anatomical Complexities: 2D × 3D -- 8.4.2 Planning a Case: Armamentarium for a 3D Approach -- 8.4.3 Access Preparation: To Open or Not to Open? -- 8.4.3.1 Minimally Invasive Endodontics: A Cost-Benefit Rationale -- 8.4.4 Cleaning and Shaping or Shaping for Cleaning? -- 8.4.5 3D or 4D Canal Filling? -- 8.5 Dealing with Complex Cases -- 8.5.1 Multiplanar Curvatures: What You See Is Not What You Get! -- 8.5.2 Overcoming Preparation of Multiple Canals in Narrow Roots -- 8.5.3 The Challenge of C-Shaped Canal Management -- 8.5.4 Taurodontism: Expanding the Pulp Chamber Size -- 8.5.5 Extra Roots in Maxillary and Mandibular Molars: The Radix -- 8.5.6 The Dens Invaginatus Dilemma: Conservative and/or Surgical Approach? -- 8.5.7 MB2 Again? Yes, But Let's Also Talk About the MB3! -- 8.6 Concluding Remarks -- References.