Cutting efficiency evaluation of Quantec Series 2000 orifice openers with computed tomography (CT)
- A. Hervás García 1
- Leopoldo Forner Navarro 2
- María Carmen Llena Puy 3
- Eduardo Zaragoza Cardells
- 1 Cardenal Herrera CEU University. Moncada. Valencia
- 2 Universitat de València.
- 3 Valencian Health Service
ISSN: 1698-6946
Année de publication: 2008
Volumen: 13
Número: 8
Pages: 12
Type: Article
D'autres publications dans: Medicina oral, patología oral y cirugía bucal. Ed. inglesa
Résumé
Introduction: Orifice openers or orifice shapers are used to shape the coronal part of the root canals during endodontic treatment. Objectives: The aim of this work was to analyse the cutting efficiency of Quantec Series 2000 system orifice shapers by means of computerised tomography (CT). Materials and methods: Mandibular molars were selected, preoperative CT was performed and the cross-sections and surface area of the root canals were measured. Following access opening and preparation of the coronal part of the canals with Quantec Series 2000 orifice shapers, a further CT was obtained of all the teeth, the previous measurements were repeated and the two sets of measurements were compared. Results: Although the canals suffered modifications due to the action of the instruments, they remained centred and retained their original morphology; the changes were greater in the most coronal part of the canals. Conclusions: the orifice shapers of the system under study kept the canals centred on their original position, so they do not present great aggressiveness during endodontic treatment; the canals that were initially the widest were those that showed the greatest modification; the CT system employed in the study showed itself to be an effective, noninvasive system for studying the changes that had taken place inside the root canals.