Endodontic treatment of the permanent mandibular first molar with a radix entomolaris: A case report and literature review

Introduction: The success of endodontic treatment is based on correct determination of the number of roots and root canals. Therefore, variants in root number and root canal number are a constant therapeutic challenge. The permanent mandibular first molar (PMFM) usually has a mesial root with two ca...

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Main Authors: Štamfelj Iztok, Sušek Lea, Strmšek Lucija
Format: Article
Language:English
Published: Medicinski fakultet i Klinika za stomatologiju, Niš 2016-01-01
Series:Acta Stomatologica Naissi
Subjects:
Online Access:http://scindeks-clanci.ceon.rs/data/pdf/0352-5252/2016/0352-52521674650S.pdf
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spelling doaj-098f7e9ee4a64910accf4d56553064ca2020-11-24T21:40:28ZengMedicinski fakultet i Klinika za stomatologiju, NišActa Stomatologica Naissi0352-52521820-12022016-01-0132741650166710.5937/asn1674650S0352-52521674650SEndodontic treatment of the permanent mandibular first molar with a radix entomolaris: A case report and literature reviewŠtamfelj Iztok0Sušek Lea1Strmšek Lucija2Odeljenje bolesti zuba i morfologije zuba, Medicinski fakultet, Univerzitet u Ljubljani, Ljubljana, Slovenija + Odeljenje operativne stomatologije i endodoncije, Universiti medical center Ljubljana, Ljubljana, SlovenijaCentar za javno zdravlje Ptuj, Ptuj, SlovenijaOdeljenje bolesti zuba i morfologije zuba, Medicinski fakultet, Univerzitet u Ljubljani, Ljubljana, SlovenijaIntroduction: The success of endodontic treatment is based on correct determination of the number of roots and root canals. Therefore, variants in root number and root canal number are a constant therapeutic challenge. The permanent mandibular first molar (PMFM) usually has a mesial root with two canals and a distal root with one or two canals, but may also have a supernumerary root located distolingually - a radix entomolaris (RE). Case report: Recent studies have shown that RE invariably contains a single root canal. Although RE occurs with a relatively low prevalence in Caucasian patients, it may be the cause of endodontic failure if not identified before or during the treatment. The knowledge about the location of the additional root canal orifice will result in a modified access cavity design. Moreover, morphological features of the RE in terms of root inclination and curvature must be taken into account during root canal preparation to avoid procedural errors, such as straightening and ledging of the root canal, perforation or instrument fracture. Conclusion: This paper presents the endodontic retreatment of a PMFM with RE in a Caucasian patient and highlights the importance of a thorough radiographic and clinical examination.http://scindeks-clanci.ceon.rs/data/pdf/0352-5252/2016/0352-52521674650S.pdfpermanent mandibular first molarroot canal therapysupernumerary rootanatomical variantsmorphology
collection DOAJ
language English
format Article
sources DOAJ
author Štamfelj Iztok
Sušek Lea
Strmšek Lucija
spellingShingle Štamfelj Iztok
Sušek Lea
Strmšek Lucija
Endodontic treatment of the permanent mandibular first molar with a radix entomolaris: A case report and literature review
Acta Stomatologica Naissi
permanent mandibular first molar
root canal therapy
supernumerary root
anatomical variants
morphology
author_facet Štamfelj Iztok
Sušek Lea
Strmšek Lucija
author_sort Štamfelj Iztok
title Endodontic treatment of the permanent mandibular first molar with a radix entomolaris: A case report and literature review
title_short Endodontic treatment of the permanent mandibular first molar with a radix entomolaris: A case report and literature review
title_full Endodontic treatment of the permanent mandibular first molar with a radix entomolaris: A case report and literature review
title_fullStr Endodontic treatment of the permanent mandibular first molar with a radix entomolaris: A case report and literature review
title_full_unstemmed Endodontic treatment of the permanent mandibular first molar with a radix entomolaris: A case report and literature review
title_sort endodontic treatment of the permanent mandibular first molar with a radix entomolaris: a case report and literature review
publisher Medicinski fakultet i Klinika za stomatologiju, Niš
series Acta Stomatologica Naissi
issn 0352-5252
1820-1202
publishDate 2016-01-01
description Introduction: The success of endodontic treatment is based on correct determination of the number of roots and root canals. Therefore, variants in root number and root canal number are a constant therapeutic challenge. The permanent mandibular first molar (PMFM) usually has a mesial root with two canals and a distal root with one or two canals, but may also have a supernumerary root located distolingually - a radix entomolaris (RE). Case report: Recent studies have shown that RE invariably contains a single root canal. Although RE occurs with a relatively low prevalence in Caucasian patients, it may be the cause of endodontic failure if not identified before or during the treatment. The knowledge about the location of the additional root canal orifice will result in a modified access cavity design. Moreover, morphological features of the RE in terms of root inclination and curvature must be taken into account during root canal preparation to avoid procedural errors, such as straightening and ledging of the root canal, perforation or instrument fracture. Conclusion: This paper presents the endodontic retreatment of a PMFM with RE in a Caucasian patient and highlights the importance of a thorough radiographic and clinical examination.
topic permanent mandibular first molar
root canal therapy
supernumerary root
anatomical variants
morphology
url http://scindeks-clanci.ceon.rs/data/pdf/0352-5252/2016/0352-52521674650S.pdf
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