scholarly journals Working Length Determination Using Apex Locator and Cone Beam Computed Tomography in Presence of Three Irrigating Solutions in Primary Teeth: An in Vitro Comparative Study

2021 ◽  
Vol 6 (2) ◽  
pp. 92-96
Author(s):  
  Anindita Talukdar ◽  
Prakash Chandra ◽  
Latha Anandakrishna
2019 ◽  
Vol 22 (2) ◽  
pp. 197-202
Author(s):  
Abhinaya Srinivas ◽  
LGanesh Jeevanandan ◽  
Lavanya Govindaraju ◽  
Erulappan Muthu Ganapathi Subramanian

Objective: To evaluate the efficacy of rotary Kedo-S and hand K-files in shaping ability in primary canines using cone beam computed tomography. Materials and Methods: Thirty extracted primary maxillary and mandibular canines were selected. Using cone beam computed tomography the teeth were scanned before instrumentation. In Group I, the teeth were prepared using stainless steel K file up to the size of 40. In the Group II teeth, U1 size Kedo-S rotary file was used in crown down technique. The instrumented teeth were scanned again with cone beam computed tomography and the images were compared. Results: The canal taper was more conical for rotary Kedo-S files as compared to K-files, which was statistically significant. Conclusion:  Canal preparation with Rotary files resulted in more conical canals when compared to manual instrumentation in primary teeth that contributes to more uniform obturation.KeywordsCBCT; Hand K-files; Kedo-S file system; Primary teeth; Pulpectomy; Rotary instrumentation.


Dentistry ◽  
2018 ◽  
Vol 08 (09) ◽  
Author(s):  
Seyed Mohsen Hashemnia ◽  
Sanaz Jahadi ◽  
Shiva Shaygannia ◽  
Ehsan Hekmatian ◽  
Amirhosein Habibollahi ◽  
...  

2013 ◽  
Vol 47 (7) ◽  
pp. 698-703 ◽  
Author(s):  
T. Connert ◽  
M. Hülber-J ◽  
A. Godt ◽  
C. Löst ◽  
A. ElAyouti

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Khoa Van Pham

Abstract Background The objective of this study is to investigate the accuracy of the 3D Endo software, cone-beam computed tomography (CBCT) software, and the electronic apex locator (EAL) in endodontic length determination. Methods 302 root canals in 111 human extracted molars were chosen. Access cavity was performed, and root canal lengths were measured with a digital caliper for actual length (AL) and EAL for electronic length. Teeth were then scanned using CBCT device at voxel size of 0.10 mm. It measured root canal lengths using the CBCT (Romexis Viewer), 3D Endo for proposed length (3D-PL) and correct length (3D-CL). Mean differences between the four methods with the AL were calculated and compared. Fisher’s exact test, paired t-test, Bland-Altman plot were used to test the differences among the experimental modalities in working length determination at the significance of 0.05. Results The accuracy in the range of ± 0.5 mm of the EAL ProPex II was highest among the experimental modalities, however this method disagreed with the actual length. Conclusions The correct working length after adjustment from the semi-automatically length by the 3D Endo software and Romexis Viewer measurements agreed with the AL.


2020 ◽  
Author(s):  
Bestoon Mohammed Faraj

Abstract Background: An accurate estimation of the working canal length is essential for successful root canal treatment. This study aimed to investigate the diagnostic accuracy of root canal length estimation on cone-beam computed tomography (CBCT) scans and digital paralleling radiographs (PAs), using the real canal length as a gold standard, and to evaluate the influence of canal curvature on this estimation. Methods: Sixty extracted human premolar teeth selected for this study. Root canal length measurement performed on CBCT scans (NewTom, Giano, Verona, Italy) and digital paralleling radiography (EzRay Air W; Vatech, Korea). The real working length established by subtracting 0.5 mm from the actual canal length. Results: No significant difference was found between CBCT and digital paralleling radiography. There was a tendency for underestimation of the root canal length measured on the CBCT images in 52 (86.7%) of the examined teeth and overestimated it in 5 teeth (8.3%). All the digital radiographs slightly overestimated the real canal length. The analysis revealed a strong correlation between the estimation from moderate to severe curvature for digital radiography, and CBCT images. Conclusion: Preoperative working length estimation can be made closest to its real clinical canal length on the standardized paralleling technique, using a long (16-inch) target–receptor distance.


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