title: [Root canal preparation techniques using nickel-titanium rotary instruments].
abstract: BACKGROUND
  The main purpose of endodontic treatment is to clean the root canal system, eliminate the infected and toxic contents, and shape it in order to get a tridimensional obturation. The aim of this paper is to inform dental practitioners about crown-down technques for root canal preparation using nickel-titanium rotary instruments.
  Today most endodontists believe that root canal preparation is more efficious, cleaning and shaping are better, if pre-enlargement of coronal two thirds is performed first, and shaping of the apical part later. Machine driven rotary instruments provide much quicker and better root canal preparation.
  
  
  CONCLUSIONS
  Contemporary endodontic rotary files vary in regard to their taper, cutting blades, guiding tip and material they are made of. The usage of rotary nickel-titanium files adds a new quality to root canal preparation.
authors.affiliation: Klinika za stomatologiju, Novi Sad. tanjahom@ptt.yu
authors.forename: Tatjana
authors.initials: T
authors.lastname: Brkanić
authors.forename: Slavoljub
authors.initials: S
authors.lastname: Zivković
authors.forename: Milan
authors.initials: M
authors.lastname: Drobac
mesh_terms: D003722:Dental Alloys; D003762:Dental Instruments; D006801:Humans; D009532:Nickel; D018915:Root Canal Preparation / Q000295:instrumentation / Q000379:methods*; D014025:Titanium
chemical_list: D003722:Dental Alloys; C040654:titanium nickelide; D009532:Nickel; D014025:Titanium