scholarly journals Comparative Evaluation of Taper Preparation Variability of Three Different Niti Files- An In Vitro CBCT Study

2017 ◽  
Vol 13 (3) ◽  
pp. 126
Author(s):  
Tirthankar Bhaumik ◽  
Utpal Kumar Das ◽  
Kaushik Dutta

The ultimate goal of an endodontic treatment is to achieve the fluid tight seal particularly at the apex as well as in coronal aspect of the root canal system. This is mainly influenced by the cleaning and shaping of root canal system and it has been recognized as an important phase of endodontic therapy. Cleaning and shaping as well as obturation are best accomplished when the file taper claimed by the manufacturer is accurate and the taper of the canal following instrumentation corresponds to the taper of the file. Despite the most advanced technology in manufacturing of dental instruments, variations in endodontic file tapers still exist. Therefore the purpose of this study is to compare the taper variation in root canal preparations among the three different NiTi files using CBCT. Methods: 24 upper 1st molar tooth with mesiobuccal root curvature 15-30 degree were selected and divided into three groups. Mesiobuccal roots (MB1) of three groups were prepared by three different NiTi file system respectively up to size25 taper.06 and CBCT were done separately for each group. The diameter was measured at 1, 3, and orifice in mm and canal taper preparation was calculated using CBCT. Result: Of the 3 file systems, fell within the ±.05 taper variability. All preparations demonstrated variability when compared to the nominal taper .06. Conclusion: Taper preparations of the investigated size 25 taper .06 were favorable but different from the nominal taper.

2019 ◽  
Vol 4 (2) ◽  
pp. 88-91
Author(s):  
Ravi Vaiyapuri ◽  
Jambai S Sivakumar ◽  
Brindha Loganathan ◽  
Chittrarasu Mathimaraiselvan ◽  
Andamuthu Sivakumar ◽  
...  

2020 ◽  
Vol 73 (6) ◽  
pp. 1145-1148
Author(s):  
Maryna A. Goray ◽  
Nataliia G. Gadzhula ◽  
Olena V. Muntian ◽  
Olena L. Cherepakha ◽  
Larysa F. Kurdysh

The aim: To compare the quality of root canal system preparation with the use of manual K-files, machine Protaper Universal and Silk files by in vitro studies. Materials and methods: Root canals preparation in 45 extracted premolars was performed in three groups with 15 teeth in each with K-files, Protaper Universal and Silk files. Transverse sections of the dental root were prepared. Histologically were assessed: amount of sawdust and predentin remaining, the purity degree of root canal walls. Results: When calculating the sawdust amount at the distance of 3 mm from an apex, a high degree of contamination was observed in the manual K-file group: 53.3% versus 33.3% in the Protaper Universal group and against 20.0% in the Silk file group. The amount of predentin after root canal treatment with manual files reached 25-30%. At the distance of 5 mm from the apex the root canals with high and medium purity degree were detected in 86.7% with Silk files and 80.0% with Protaper Universal files used. All predentin was removed when working with Protaper Universal and Silk files. Conclusions: In the histological sections of the root canals treated with K-files, the larger amount of dentine particles and predentin has been revealed than when using machine tools. The largest amount of predentin and dentine were removed with Protaper Universal files. Silk endodontic system is better for treatment of the root canals dentine surface in the apical area compared to Protaper Universal and K-files.


2020 ◽  
Vol 45 (3) ◽  
Author(s):  
Margaret Soo Yee Chia ◽  
Abhishek Parolia ◽  
Benjamin Syek Hur Lim ◽  
Jayakumar Jayaraman ◽  
Isabel Cristina Celerino de Moraes Porto

2017 ◽  
Vol 6 (2) ◽  
pp. 65-67
Author(s):  
Neha Saini ◽  
Abhinav C Singhal ◽  
Aditi S Jain ◽  
Jayesh Tiwari ◽  
Pratik Surana

ABSTRACT Introduction The main objective of root canal treatment is to disinfect the entire root canal system, and irrigation is an important step in reducing the bacterial load from the root canal system. However, irrigants currently used in the field of endodontics have their share of limitations, and the search for an ideal root canal irrigant continues. The use of herbal extracts as endodontic irrigants is today gaining popularity. Aims and objectives To evaluate and compare the antimicrobial potential of herbal extracts, such as neem (Azadirachta indica), triphala (Terminalia chebula), green tea (Camellia sinensis), and combination of neem and triphala as endodontic irrigants against Enterococcus faecalis. Materials and methods Freshly prepared extracts of neem, triphala, green tea, and 2% chlorhexidine were used to assess the antimicrobial efficiency against E. faecalis using the agar well diffusion test. Agar plates were incubated at 370°C for 24 hours in an incubator. The diameter of bacterial inhibition zones around each well was recorded to the nearest size in mm. Results Higher mean zone of inhibition was recorded in chlorhexidine followed by neem extract and combination of neem and triphala than triphala and green tea extract respectively. The lowest mean zone of inhibition was found in green tea extract. Conclusion From the present study, it can be concluded that neem leaf extract shows comparable zones of inhibition with that of chlorhexidine and combination of neem and triphala. How to cite this article Singhal AC, Jain AS, Tiwari J, Surana P, Saini N. Antibacterial Efficacy of Neem, Triphala, Green Tea, and Combination of Neem with Triphala Extract against Enterococcus faecalis: An in vitro Study. Int J Experiment Dent Sci 2017;6(2):65-67.


2014 ◽  
Vol 18 (3) ◽  
Author(s):  
Matheus Albino Souza ◽  
Tiago Lange dos Santos ◽  
Alessandra Kuhn Dall’Magro ◽  
Fabiana Vieira Vier-Peliser ◽  
Luciana Ruschel dos Santos ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document