Pregled bibliografske jedinice broj: 526417
Evaluation of Electrical Equivalent Circuits of a Tooth: Comparison of Circuits with Resistors and Capacitors and the Circuit with a Constant Phase Element
Evaluation of Electrical Equivalent Circuits of a Tooth: Comparison of Circuits with Resistors and Capacitors and the Circuit with a Constant Phase Element // IFMBE Proceedings 37 / Akos Jobbagy (ur.).
Berlin : Heidelberg: Springer, 2011. str. 1261-1264 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 526417 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Evaluation of Electrical Equivalent Circuits of a Tooth: Comparison of Circuits with Resistors and Capacitors and the Circuit with a Constant Phase Element
Autori
Marjanović, Tihomir ; Lacković, Igor ; Stare, Zoran
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
IFMBE Proceedings 37
/ Akos Jobbagy - Berlin : Heidelberg : Springer, 2011, 1261-1264
ISBN
978-3-642-23507-8
Skup
5th European Conference of the International Federation for Medical and Biological Engineering
Mjesto i datum
Budimpešta, Mađarska, 14.09.2011. - 18.09.2011
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
root canal length; tooth impedance; electrical equivalent circuit of tooth; constant phase element; complex nonlinear least squares
Sažetak
During the endodontic treatment electronic devices called apex-locators are used to determine the root canal length of the tooth. Apex-locators measure the electrical impedance of the root canal and display the position of the electrode inside the canal. In order to better understand physical phenomena inside the root canal and to improve the measurement procedure, tooth is modeled by an electrical equivalent circuit. In this paper eleven different electrical equivalent circuits comprising of frequency independent resistors and capacitors are examined and compared to a simple equivalent circuit which contains a constant phase element. Impedance measurements were performed in vitro on extracted tooth immersed in alginate dental impression material. Quality factors are calculated to compare the fit quality and parameter utilization efficiency for each considered electrical equivalent circuit. We have found that five-element circuit shows superior performance in both fit quality and parameter efficiency among circuits comprising of resistors and capacitors. However, it can not compete with a simple equivalent circuit that contains a constant phase element.
Izvorni jezik
Engleski
Znanstvena područja
Elektrotehnika
POVEZANOST RADA
Projekti:
036-0362979-1554 - Neinvazivna mjerenja i postupci u biomedicini (Tonković, Stanko, MZO ) ( CroRIS)
Ustanove:
Fakultet elektrotehnike i računarstva, Zagreb
