Accessory mesial roots and root canals in mandibular molar teeth: Case reports, SEM analysis and literature review

Aly Ahmed, Hany Mohamed; Luddin, Norhayati
September 2012
Endodontic Practice Today;Autumn2012, Vol. 6 Issue 3, p195
Academic Journal
Case Study
Adequate knowledge on the root and root canal morphological variations is essential for successful endodontic treatment. Mandibular molar teeth show considerable variability and complexity in their external and internal radicular morphology that require special attention from dental practitioners to provide the best clinical outcomes for the patients. This report aims to describe two clinical cases of mandibular molar teeth with accessory mesial roots/root canals. The first case demonstrates a successful identification and endodontic management of a three-rooted mandibular second molar with an accessory mesial root, and the second case presents a mandibular first molar with five root canals,in which three separate mesial root canals were identified. With the aid of SEM and radiographicexamination, both external and internal radicular morphological analysis were also performed on an extracted mandibular second molar tooth having an apical mesial root bifurcation. In addition,a review on the literature was undertaken to identify the available in vitro and in vivo studies that demonstrated these anatomical aberrations in the mesial root of mandibular molar teeth.


Related Articles

  • Nonsurgical endodontic retreatment of a mandibular first molar with middle mesial canal: A case report. Machado, Ricardo; Leal da Silva, Emmanuel João Nogueira; Rokaya, Dinesh; Vansan, Luiz Pascoal // Endodontic Practice Today;2014, Vol. 8 Issue 1, p37 

    The clinician's difficulty in performing the correct diagnosis for some endodontic situations sometimes leads to a compromised treatment of some teeth. Considering this, a consistent knowledge of the root canal morphology and its variations is very important to the success of root canal...

  • The Periodontal Enigma. Gurenlian, JoAnn R. // Access;Mar2001, Vol. 15 Issue 3, p28 

    Evaluates the relationship between pulp and periodontal tissues and diagnostic processes in distinguishing types of endodontic-periodontal lesions. Categories of pulpal infection; Manifestations of endodontic and periodontic lesions; Administration of radiographs in identifying periodontal and...

  • Comparison between electronic and radiographic method for the determination of root canal length in primary teeth. Pinheiro, Sérgio Luiz; Bincelli, Iris Nogueira; Faria, Talita; Bueno, Carlos Eduardo da Silveira; Cunha, Rodrigo Sanches // RSBO: Revista Sul-Brasileira de Odontologia;jan-mar2012, Vol. 9 Issue 1, p11 

    Introduction: There are few researches in literature that mention the use of the apex locator in deciduous teeth and working length is obtained through radiographies. Objective: The purpose of this research was to compare the radiographic and the electronic method to obtain the working length in...

  • Maxillary first Molar with three canal orifices in MesioBuccal root. Ayranci, Leyla B.; Arslan, Hakan; Topcuoglu, H. Sinan // Journal of Conservative Dentistry;Oct-Dec2011, Vol. 14 Issue 4, p436 

    The present case describes root canal treatment in a maxillary first molar with unusual anatomy. A male patient was referred for the treatment of maxillary left first molar tooth. Clinical examination of the pulpal floor revealed 3 orifices in the mesio buccal root. The tooth was treated...

  • Endodontic Management of Maxillary Second Molar with Two Palatal Roots: A Report of Two Cases. Patel, Surbhi; Patel, Pawan // Case Reports in Dentistry;2012, p1 

    Endodontic treatment may sometimes fail because morphological features of the tooth adversely affect the treatment protocol. Maxillary second molars are recognized as usually having a single palatal root with a single palatal canal. The incidence of second palatal root in the maxillary...

  • Surface modification of tooth root canal after application of an X-ray opaque waveguide. Dostálová, T.; Jelínková, H.; Šulc, J.; Němec, M.; Koranda, P.; Bartoňová, M.; Radina, P.; Miyagi, M.; Shi, Y.-W.; Matsuura, Y. // Applied Physics A: Materials Science & Processing;2004, Vol. 79 Issue 4-6, p887 

    The interest in endodontic use of dental laser systems has been increasing. With the development of thin and flexible delivery systems for various wavelengths, laser applications in endodontics may become even more desirable. The aim of this study is to check the X-ray opacity of a hollow...

  • Single Rooted Maxillary First Molar: A Rare Case. Wang, Chikoy; Prasad, Krishna // People's Journal of Scientific Research;Jan2011, Vol. 4 Issue 1, p68 

    Adequate knowledge of the root canal morphology and its variations is essential fi)r successful endodontic treatment. Of all the permanent teeth, maxillary first molar has a wide variety of variations in the root canal morphology. One among the rarest variation is to have a single root with a...

  • Linear measurements to determine working length of curved canals with fine files: conventional versus digital radiography. rito-Júnior, Manoel; Santos, Luis A. N.; Baleeiro, Érika N.; Pêgo, Marisa M. F.; Eleutério, Núbia B.; Camilo, Carla C. // Journal of Oral Science;Dec2009, Vol. 51 Issue 4, p559 

    This in vitro study compared conventional and digital radiographic linear measurements to determine the working length (WL) of curved canals with fine endodontic files. In total, 30 mesiobuccal root canals in molars were measured with a #06 K-file to a length 1 mm short of the apical foramen...

  • C-shaped root canal configuration in mandibular second premolar: Report of an unusual case and its endodontic management. Shah Dipali Y. // Journal of the International Clinical Dental Research Organizati;Jan-Dec2012, Vol. 4 Issue 1, p18 

    The C-shaped root canal system is an aberration of the root canal system in which a characteristic fin or web connects individual canals, resulting in a C-shaped cross section. This configuration has been rarely reported in the mandibular second premolar. The only other known reported case of a...

  • An in vitro Comparison of Root Canal Measurement in Permanent Teeth by Electronic Apex Locator, Conventional and Digital Radiography. Saeed, Musab Hamed; Luke, Alexander M. J.; Abtahl, Nazil A.; Pradeep, A. Praveen // World Journal of Dentistry;Oct2011, Vol. 2 Issue 4, p312 

    Introduction: In endodontic treatment for permanent teeth, it is important to estimate the working length precisely. Currently, various methods are used in clinical practice for working length estimation. The objective of this study is to compare the accuracy of root canal length in permanent...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics