Preparation of simulated double curved canals with WaveOne, Reciproc and ProTaper Next system
Journal Title: Journal of Stomatology (Czasopismo Stomatologiczne) - Year 2016, Vol 69, Issue 1
Abstract
Introduction. The purpose of the mechanical preparation of the root canal is to create a continuously tapering funnel form, extending from the coronal access cavity to the root apex, as well as to maintain the original canal shape and apical foramen in their original spatial relationship both to the periapical tissues and the root surface. In the case of curved canals this work is considered to be a challenge for dentists. The most common procedural errors, such as apical perforation or strip perforation, relate to the teeth with complicated root canal anatomy. Aim of the study. To evaluate the shape of canals with a double curved curvature after preparation with different instruments with respect to canal transportation, the amount of removed material from canal walls, as well as apical transportation and its diameter. Material and methods. The study involved reciprocating files, WaveOne (Dentsply Maillefer), Reciproc (VDW), and rotary ProTaper Next system (Dentsply Maillefer). Thirty resin blocks (Endo-Training-Bloc, Dentsply Maillefer) with hollow inside canals containing a double curvature (S-shaped canals) were used in the study. Blocks were photographed before and after preparation. After the superimposition of images in a computer program, measuring points were determined. The amount of the removed material corresponded to the distance between the measuring point and the wall of the canal after the preparation. To elaborate the collected data, descriptive and statistical inference methods were used. Results. This study has confirmed the scientists’ opinions that differences in the structure and working movement of files affect the resulting shape of the root canal. The tested instruments ensure simulated canal preparation in a manner which evidently deviates from expectations. The concept of one file with a high and variable taper creates the risk of more extensive canal transportation. The comparison of the preparation with the system based on a sequence of files revealed statistically significant differences. In the case of double curved canals the ProTaper Next instruments seem to be the right choice.
Authors and Affiliations
Agata Koprowicz, Michał Łęski, Halina Pawlicka
Keywords
Related Articles
- EP ID EP80132
- DOI -
- Views 80
- Downloads 0
Bond strength of ceramic inlay with dental hard tissues depending on the type of adhesive system used – review of literature
Reconstruction of dental hard tissues with the use of inlays results in very good aesthetic and functional effects. Indirect prosthetic reconstruction in the form of an inlay requires preparation of the tooth structure t...
Professor Zofia Knychalska-Karwan (1922-2016) – IN MEMORIAM
The usual phrase that on the 28th of July 2016 Professor Zofia Knychalska-Karwan passed away in Her case has a truly literal bearing. Each one of us – Her former students, patients and colleagues – has realized that we h...
Możliwości leczenia implantoprotetycznego w przypadku bardzo wąskiej strefy neutralnej w odcinku przednim żuchwy*
Wprowadzenie. Rehabilitacja protetyczna bezzębia w żuchwie przy mocno zanikłym polu protetycznym jest nadal aktualnym problemem klinicznym. Uzyskanie retencji protezy dzięki zastosowaniu wszczepów śródkostnych nie zawsze...
Lęk stomatologiczny i jego wpływ na zachowania prozdrowotne dorosłych pacjentów regionu łódzkiego
Wprowadzenie. Strach przed leczeniem stomatologicznym, pomimo coraz doskonalszych metod leczenia jest częstym zjawiskiem. Według danych z piśmiennictwa dotyczy od 16% do 24% dorosłych w różnych populacjach. Cel pracy...
Bone tissue structure and function
Aim of the study: To outline the structure and physiology of bone tissue, which may benefit dental practitioners Conclusion: The morphological and functional characteristics of cells involved in bone formation, the compo...