Shaping Effects of Three Different Nickel-Titanium Rotary Endodontic File Systems in Root Canals of Mandibular Molars: An Ex-Vivo Study
Journal Title: International Journal of Contemporary Medical Research - Year 2018, Vol 5, Issue 4
Abstract
Introduction: Canal preparation and shaping is one of the major steps in root canal treatment. Study aimed to compare and evaluate the shaping ability of three different rotary Ni-Ti endodontic file systems in root canals of extracted molar teeth. Material and methods: A total of 60 extracted human mandibular first molar teeth with curvature ranging between 15-300 were used in this study. Specimens were embedded in a modified muffle system and sectioned horizontally at three levels before preparation anitind were randomly divided into three experimental groups. Root canal preparation was performed with ProTaper, RaCe and Varitaper Ni-Ti instruments. Cross section images were taken both before and after instrumentation under a stereomicroscope connected to charged couple device (CCD) camera at a fixed position and magnification. Pre and post radiographs and images obtained were analyzed to evaluate the shaping ability (in terms of amount of dentin removed, straightening, transportation and centering ratio) by using image analysis software. The data were analyzed statistically using ANOVA tests. Results: All the systems maintained canal curvature well. Varitaper and RaCe had better centering ratio and least transportation compared to ProTaper (P<0.05) in the apical section. Protaper had higher values of dentin removal (P<0.05) at all levels compared to other file systems. Conclusions: ProTaper removed dentin more, RaCe and Varitaper had better centering and least transportation at all levels,While canals shaped with ProTaper had transportation and less centering ratio at apical level
Authors and Affiliations
Shahnaz Nabi, Khalid Amin, Ajaz Masoodi, Riyaz Farooq, Aamir Purra, Fayaz Ahangar
Survival in Advanced Esophageal Cancer – Experience from a Tertiary Cancer Center
Introduction: Esophageal cancer is the eighth most common malignancy worldwide. In the Western world, esophageal adenocarcinoma has surpassed the incidence of squamous cell carcinoma (SCC). However in developing countrie...
Fungal Profiling in Patients with Chronic Suppurative Otitis Media: A Microbiological Study
Introduction: One of the complications of acute otitis media is chronic suppurative otitis media although the risk factors responsible for this are unclear. Development of chronic suppurative otitis media may be related...
A Prospective Epidemiological Study of Subaxial Cervical Spine Injury in a Tertiary Care Centre In South India
Introduction: Injuries to the cervical spine occur in only 2 to 3% of all patients with CNS injuries, because of their associated mortality and morbidity to the patient, socioeconomic impact over the family of the injure...
Dental Applications of Cold Atmospheric Plasma
Matter is mostly thought to exist in liquid, solid, and gaseous state. Apart from these three there is another category of matter called as plasma. Out of all the states of matter, plasma is found to exist in the highest...
Analysis of Thyroid Disorders in Type - 2 Diabetes Mellitus Patients
Introduction: Among endocrine disorders after diabetes mellitus condition, thyroid dysfunction is the most common. Thyroid disorders and Diabetes are interrelated conditions and the most common conditions presenting in c...