Poster Presentation

Poster Presentation

PR87 - Evaluation In Vitro of The Accuracy of Three Electronic Apex Locators in Curved Canals of Mandibular Molars

Thursday, April 26
10:00 AM - 1:00 PM
Room: Exhibit Hall

This study evaluated in vitro the accuracy of three different electronic apex locators (EALs), Apex ID, CanalPro and Mini ZX in the curved canals. Thirty-two extracted mandibular molars presenting two separated curved mesial canals (25–40°) were selected. The crowns were flattened and lengths standardized. After cervical pre-flaring, the actual canal length (AL) was visually obtained at the apical foramen (AF). The roots were embedded in alginate and irrigated (2.5% sodium hypochlorite). The measurements of the three EALs were performed using a 10 K-file attached to a digital caliper, in both “APEX” (or “0.0”) and “0.5” marks. The difference between the electronic lengths and respective AL was assigned as negative when it was lesser or positive when greater. The means of the absolute values and the percentage of distribution of the electronic measurements were statistically analyzed (Tukey HSD and Z test, p0.05). Most of the reading at 0.5 mark were positioned up to 0.5 mm short to AF. For all devices, the APEX/0.0mark resulted in more than 80% of readings positioned within ±0.5 mm from the AF. However, for Apex ID the 0.0 mark resulted in significantly more readings ranging 0.01-0.5 mm beyond the AF. All tested devices were considered accurate for the working length determination in curved canals. For Mini ZX and CanalPro, the measurements can be performed in both marks, while for Apex ID it should be preferable to use the 0.5 mark.

Lucila Piasecki

Clinical Assistant Professor
SUNY Buffalo

Dr. Piasecki graduated in Dentistry from the State University of West Parana, Cascavel, Brazil (2003) and in the same institution completed the Specialization in Endodontics (2005). She obtained the Master's of Science degree (2011) and Ph.D. (2014) in Endodontics at the Pontifical Catholic University PUCPR, Curitiba, Brazil. Dr. Piasecki joined the academic career in 2008 at the Paranaense University. Later she was also an invited professor in the Post-Graduation in Endodontics of the State University of West Parana, Cascavel, Brazil (2009-2016) and as a part-time faculty of Endodontics at the Pontifical Catholic University PUCPR, Curitiba, Brazil (2013-2015). In 2015 she was awarded a research fellowship at Sapienza University of Rome, Italy, and later in 2016 became a full-time faculty at the State University of New York at Buffalo. Dr. Piasecki is a member of the American Association of Endodontics, the Brazilian Society of Endodontics and Brazilian Association of Dentists. She has contributed as a reviewer for scientific journals, academic boards, and as an evaluator of research presentations in scientific congresses. She has lectured in events in Brazil and Poland and has attended more than 50 scientific events, many of them as a presenter.

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Hassan Shawli

Endodontics Fellow
SUNY at Buffalo

Graduated in Dentistry from the King Abdulaziz University, Jeddah, Saudi Arabia (2011). He obtained a Master's of Science degree in Biomaterials from SUNY at Buffalo (2017). Dr. Shawli joined the academic career as assistant teacher in restorative department in 2013 at Taif University. Currently Dr. Shawli is doing a research fellowship in endodontics at SUNY at Buffalo University. Dr. Shawli is a member of the American Association of Endodontics and the Saudi Dental Society.

Education and Training:
• Fellowship, Endodontics, SUNY at Buffalo University (2017- 2018)
• MS, Biomaterials, SUNY at Buffalo University (2017)
• BDS, Dentistry, King Abdalaziz University (2011)

Employment:
• Assistant Teacher, Endodontics, Taif University (2013– present)

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PR87 - Evaluation In Vitro of The Accuracy of Three Electronic Apex Locators in Curved Canals of Mandibular Molars



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