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Ebook Textbook of endodontics (3/E): Part 2

Part 2 book “Textbook of endodontics” has contents: Obturation of root canal system, single visit endodontics, endodontic emergencies, endodontic failures and retreatment, procedural accidents, surgical endodontics, endodontic periodontal relationship, tooth resorption, pediatric endodontics, and other contents. | 19 Obturation of Root Canal System Timing of Obturation Extent of Root Canal Filling Materials used for Obturation Methods of Sealer Placement Obturation Techniques Armamentarium for Obturation Lateral Compaction Technique Variation of Lateral Compaction Technique Chemical Alteration of Gutta-Percha Vertical Compaction Technique System B: Continuous Wave of Condensation Technique Lateral/Vertical Compaction of Warm Gutta-Percha Sectional Method of Obturation/ Chicago Technique McSpadden Compaction/ Thermomechanical Compaction of the Gutta-Percha Thermoplasticized Injectable GuttaPercha Obturation Solid Core Carrier Technique Obturation with Silver Cone Apical Third Filling Postobturation Instructions Repair following Endodontic Treatment The success in endodontic treatment is based on proper diagnosis and treatment planning, knowledge of anatomy and morphology, debridement, sterilization and obturation. The process of cleaning and shaping determines both the degree of disinfection and the ability to obturate the radicular space, obturation is therefore a reflection of the cleaning and shaping and an obturant (obturating material) must seal the root canal system three dimensionally so as to prevent tissue fluids from percolating in the root canal and toxic byproducts from both necrotic tissue and microorganisms regressing into the periradicular tissues (Figs 19.1 to 19.4). The obturation of the prepared space have been achieved by using a wide variety of materials selected for their intrinsic properties and handling characteristics. These core materials have been classified as cements, pastes, plastics or solids. Gutta-percha, in its various forms, has remained the paragon as a root canal filling material during the course of last century. The development of core materials and delivery techniques has generated carrier-based gutta-percha and resin-based system. These filling materials are combined with sealers to provide