Comparison of Two Different Methods of Average Working Length Determination in Second Molars and Premolars

Within the procedures involved in a successful endodontic treatment is the working length (WL) determination. The root canal end must be detected accurately, and a precise control of the WL must be maintained. There are several methods to determine WL. Researchers have published the average teeth le...

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Autores principales:	Rodríguez-Niklitschek,Cynthia, Cantín,Mario, Oporto,V. G. H
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2015
Materias:	Endodontics Electronic apex locator Working length Root canal system anatomy
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000300052
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spelling	oai:scielo:S0717-950220150003000522015-12-04Comparison of Two Different Methods of Average Working Length Determination in Second Molars and PremolarsRodríguez-Niklitschek,CynthiaCantín,MarioOporto,V. G. H Endodontics Electronic apex locator Working length Root canal system anatomy Within the procedures involved in a successful endodontic treatment is the working length (WL) determination. The root canal end must be detected accurately, and a precise control of the WL must be maintained. There are several methods to determine WL. Researchers have published the average teeth length (ATL) to the human permanent dentition. These measurements are used as an anatomical reference. If the WL is evaluated using a radiographic image, it is accepted as clinical success if the limit of the canal sealing is 1 mm coronal to the root apex. One method to determine WL is based in substract 1 mm to ATL. Another method widely used, assert to achieve a more precise WL determination, through the use of an electronic apex locator (AL). Nevertheless, published measures of ATL are still used as anatomical reference, and are used to determine WL in the absence of an AL. The aim of this study was to determine the average WL of second molars and premolars with endodontic treatment indication using a PropexII® AL, and compare these measurements to WL determination using ATL method. A descriptive cross-sectional study with a non-random sample of consecutive cases was executed. Results showed that there were no statistically significant differences between the WL obtained with AL and ATL method in studied teeth, except mesio-buccal canal of second maxillary molars (19.94 mm average using AL, 1.54 mm greater than ATL method 18.40 mm; p= 0.002). The ATL method to determine WL could be used to determine the WL of second molars and premolars in studied population. Further research should be performed to determine if ATL method is safe and reliable to be used in absence of an AL or in patients where this instrument cannot be used.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.33 n.3 20152015-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000300052en10.4067/S0717-95022015000300052
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Endodontics Electronic apex locator Working length Root canal system anatomy
spellingShingle	Endodontics Electronic apex locator Working length Root canal system anatomy Rodríguez-Niklitschek,Cynthia Cantín,Mario Oporto,V. G. H Comparison of Two Different Methods of Average Working Length Determination in Second Molars and Premolars
description	Within the procedures involved in a successful endodontic treatment is the working length (WL) determination. The root canal end must be detected accurately, and a precise control of the WL must be maintained. There are several methods to determine WL. Researchers have published the average teeth length (ATL) to the human permanent dentition. These measurements are used as an anatomical reference. If the WL is evaluated using a radiographic image, it is accepted as clinical success if the limit of the canal sealing is 1 mm coronal to the root apex. One method to determine WL is based in substract 1 mm to ATL. Another method widely used, assert to achieve a more precise WL determination, through the use of an electronic apex locator (AL). Nevertheless, published measures of ATL are still used as anatomical reference, and are used to determine WL in the absence of an AL. The aim of this study was to determine the average WL of second molars and premolars with endodontic treatment indication using a PropexII® AL, and compare these measurements to WL determination using ATL method. A descriptive cross-sectional study with a non-random sample of consecutive cases was executed. Results showed that there were no statistically significant differences between the WL obtained with AL and ATL method in studied teeth, except mesio-buccal canal of second maxillary molars (19.94 mm average using AL, 1.54 mm greater than ATL method 18.40 mm; p= 0.002). The ATL method to determine WL could be used to determine the WL of second molars and premolars in studied population. Further research should be performed to determine if ATL method is safe and reliable to be used in absence of an AL or in patients where this instrument cannot be used.
author	Rodríguez-Niklitschek,Cynthia Cantín,Mario Oporto,V. G. H
author_facet	Rodríguez-Niklitschek,Cynthia Cantín,Mario Oporto,V. G. H
author_sort	Rodríguez-Niklitschek,Cynthia
title	Comparison of Two Different Methods of Average Working Length Determination in Second Molars and Premolars
title_short	Comparison of Two Different Methods of Average Working Length Determination in Second Molars and Premolars
title_full	Comparison of Two Different Methods of Average Working Length Determination in Second Molars and Premolars
title_fullStr	Comparison of Two Different Methods of Average Working Length Determination in Second Molars and Premolars
title_full_unstemmed	Comparison of Two Different Methods of Average Working Length Determination in Second Molars and Premolars
title_sort	comparison of two different methods of average working length determination in second molars and premolars
publisher	Sociedad Chilena de Anatomía
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000300052
work_keys_str_mv	AT rodriguezniklitschekcynthia comparisonoftwodifferentmethodsofaverageworkinglengthdeterminationinsecondmolarsandpremolars AT cantinmario comparisonoftwodifferentmethodsofaverageworkinglengthdeterminationinsecondmolarsandpremolars AT oportovgh comparisonoftwodifferentmethodsofaverageworkinglengthdeterminationinsecondmolarsandpremolars
_version_	1718444931064791040

Comparison of Two Different Methods of Average Working Length Determination in Second Molars and Premolars

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