scholarly journals Efficiency of Using Different Greater Taper Gutta-Percha Cones in Continuous Warm Vertical Condensation: An Ex Vivo Study

2021 ◽  
Vol 22 (1) ◽  
pp. 56-61
Author(s):  
Mamata Hebbal ◽  
Reem Barakat ◽  
Rahaf Almohareb ◽  
Ghada Alaskar ◽  
Lama Alghufaily ◽  
...  
Keyword(s):  
Ex Vivo ◽  
Gutta Percha ◽  
Ex Vivo Study

scholarly journals DOES PRESTERILIZATION HAS ANY INFLUENCE ON CONSERVATIVE AND ENDODONTIC MATERIAL STERILITY, IMMEDIATELY AFTER UNPACKING AND POST EXPOSURE TO CLINICAL ENVIRONMENT FOR 15 DAYS - AN EX VIVO STUDY.

2020 ◽  
Vol 9 (3) ◽  
Author(s):  
S. Anitha Rao ◽  
Deepthi Angalakuditi ◽  
Sunehra Sanam ◽  
K Santhosh Reddy ◽  
Sabavat Sangeetha
Keyword(s):  
Ex Vivo ◽  
Matched Pairs ◽  
Cross Contamination ◽  
Clinical Environment ◽  
Time Points ◽  
Post Exposure ◽  
Gutta Percha ◽  
Before And After ◽  
Ex Vivo Study ◽  
Dental Burs

Background: Instruments used in the operative area are colonised by various microbial organisms during usage. Sterilization is an important prerequisite to avoid cross contamination. Purpose of the study: The purpose of this study was to evaluate whether presterilization has any influence on conservative and endodontic material sterility, immediately after unpacking and post exposure to clinical environment for 15 days. Methods: Gutta percha cones, Rubber dam clamps, Impression trays, Dental burs (#245 bur, Access opening bur) were tested.Materials were randomly sampled at 2 time points (t0, at package opening; t1, at 15days) during their clinical usage. Vortexing, centrifuging, streak and inoculation was done. Colony formation under aerobic conditions was observed on media before and after presterilization. Statistical analysis: Wilcoxon matched pairs test was done for comparison of data before and after pre sterilization with status of aerobic organisms at to (immediately after opening) and t1 (during clinical usage). Conclusion: Presterilization effectively eliminates cross contamination of various aerobic microorganisms in conservative and endodontic material immediately unpacked and post exposure to clinical environment for 15 days.

scholarly journals Accuracy of an Electronic Apex Locator in the Retreatment of Teeth Obturated with Plastic or Cross-linked Gutta-percha Carrier-based Materials: An Ex Vivo Study

2014 ◽  
Vol 40 (12) ◽  
pp. 2061-2065 ◽  
Author(s):  
Manuele Mancini ◽  
Pietro Palopoli ◽  
Lorenzo Iorio ◽  
Gabriele Conte ◽  
Luigi Cianconi
Keyword(s):  
Ex Vivo ◽  
Gutta Percha ◽  
Ex Vivo Study ◽  
Electronic Apex Locator

scholarly journals COMPARITIVE EVALUATION OF EFFICIENCY AND TIME OF GUTTA PERCHA REMOVAL USING HEDSTROM FILES, PROTAPER RETREATMENT AND RENDO FILES - AN EX VIVO STUDY

2015 ◽  
Vol 2 (49) ◽  
pp. 8484-8487
Author(s):  
Shaheen Mohammad Ali ◽  
Pradeep P S ◽  
Sam Paul ◽  
Dexton Antony Jhons ◽  
Ganesh Prasad B
Keyword(s):  
Ex Vivo ◽  
Gutta Percha ◽  
Ex Vivo Study

scholarly journals CBCT Evaluation of Gutta-Percha Removal Using ProTaper and Mtwo Retreatment Files, WaveOne, and Hedstrom Files: An Ex Vivo Study

2021 ◽  
Author(s):  
Kumari Madhu ◽  
Priyatam Karade ◽  
Rutuja Chopade ◽  
Yogesh Jadhav ◽  
Kirti Chodankar ◽  
...  
Keyword(s):  
Ex Vivo ◽  
File Systems ◽  
Cone Beam ◽  
Filling Material ◽  
Root Canals ◽  
Filling Materials ◽  
Gutta Percha ◽  
Root Canal Retreatment ◽  
Ex Vivo Study ◽  
One Way Anova

Objectives: This study aimed to evaluate the efficacy of ProTaper, Mtwo, and WaveOne retreatment files and Hedstrom files for removal of gutta-percha from the straight root canals using cone-beam computed tomography (CBCT). Materials and Methods: Forty freshly extracted single-rooted and single-canal teeth were selected for this study. The teeth were decoronated, and biomechanical preparation was performed up to #30 K-file. The root canals were obturated using lateral compaction technique with gutta-percha and Resilon sealer. The teeth were then randomly divided into 4 groups, and CBCT images were obtained. All the canals were then retreated with either ProTaper retreatment files, Mtwo retreatment files, WaveOne files, or Hedstrom files. The surface area of the remaining filling material after the retreatment procedure was quantified by CBCT. Statistical analysis was performed via one-way ANOVA and the Tukey-Kramer multiple comparisons test. Results: None of the file systems could completely remove the filling material from the canals. Data analysis revealed significant differences between the groups in the apical and middle thirds (P<0.05). Conclusion: All the file systems left some filling material in the canals. Mtwo retreatment files had maximum efficacy for removal of filling materials in comparison with other files. WaveOne files can also be used for root canal retreatment.    

Ex vivo study of the efficacy of H-files and rotary Ni-Ti instruments to remove gutta-percha and four types of sealer

2006 ◽  
Vol 39 (1) ◽  
pp. 48-54 ◽  
Author(s):  
E. Kosti ◽  
T. Lambrianidis ◽  
N. Economides ◽  
C. Neofitou
Keyword(s):  
Ex Vivo ◽  
Gutta Percha ◽  
Ex Vivo Study
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