Biomaterial Database

[Root canal preparation for obturation using nickel-titanium mechanical devices]. 1998

A Fazekas

Semmelweis Orvostudományi Egyetem, Konzerváló Fogászati Klinika, Budapest.

Engine-driven ProFile instruments manufactured by Maillefer (Switzerland) and Tulsa Dental Products (USA) have been used for cleaning and shaping root canals. Both of them are nickel titanium, U-shaped instruments designed for a controlled slow speed (250 rpm) rotary handpiece. In contrast to the Maillefer instruments ProFile Series 29 files (Tulsa Dental) show a constant 29% increase between tip diameters. As these more tapered instruments (ProFile 0.04; 0.06) are rotated, they produce a "crown-down" preparation, resulting in a tunnelform taper from orifice to apex. According to our experiences ProFile instruments are useful alternative tools for root canal preparation quickly and efficiently.

UI	MeSH Term	Description	Entries
D009532	Nickel	A trace element with the atomic symbol Ni, atomic number 28, and atomic weight 58.69. It is a cofactor of the enzyme UREASE.
D003762	Dental Instruments	Hand-held tools or implements especially used by dental professionals for the performance of clinical tasks.	Instrument, Dental,Dental Instrument,Instruments, Dental
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006814	Hungary	A country in Europe, northwest of Romania, south of Slovakia, and east of Austria. The capital is Budapest.
D012389	Root Canal Obturation	Phase of endodontic treatment in which a root canal system that has been cleaned is filled through use of special materials and techniques in order to prevent reinfection.	Endodontic Obturation,Canal Obturation, Root,Canal Obturations, Root,Endodontic Obturations,Obturation, Endodontic,Obturation, Root Canal,Obturations, Endodontic,Obturations, Root Canal,Root Canal Obturations
D013557	Switzerland	A country in Europe. It is bordered by Austria, France, Italy, Liechtenstein, and Germany. The capital is Bern.
D014025	Titanium	A dark-gray, metallic element of widespread distribution but occurring in small amounts with atomic number, 22, atomic weight, 47.867 and symbol, Ti; specific gravity, 4.5; used for fixation of fractures.
D018915	Root Canal Preparation	Various preparatory steps prior to ROOT CANAL THERAPY by extirpation of diseased pulp and preparation of access cavity to receive the sealing material.	Access Cavity Preparation,Endodontics Access Cavity Preparation,Access Cavity Preparations,Preparation, Access Cavity,Preparation, Root Canal,Root Canal Preparations