alexa Walking 6 Year Molar | Open Access Journals
ISSN: 2161-1122
Dentistry
Like us on:
Make the best use of Scientific Research and information from our 700+ peer reviewed, Open Access Journals that operates with the help of 50,000+ Editorial Board Members and esteemed reviewers and 1000+ Scientific associations in Medical, Clinical, Pharmaceutical, Engineering, Technology and Management Fields.
Meet Inspiring Speakers and Experts at our 3000+ Global Conferenceseries Events with over 600+ Conferences, 1200+ Symposiums and 1200+ Workshops on
Medical, Pharma, Engineering, Science, Technology and Business

Walking 6 Year Molar

Prasanna Kumar Rao*, Laxmikanth Chatra and Prashanth Shenai

Department of Oral Medicine and Radiology, Yenepoya Dental College, Yenepoya University, Mangalore, Karnataka, India

*Corresponding Author:
Dr. Prasanna Kumar Rao J
Department of Oral Medicine and Radiology
Yenepoya Dental College, Yenepoya University
Deralakatte, Mangalore, Karnataka, India-575018
Tel: +91 9900151108
E-mail: [email protected]

Received date: May 20, 2015; Accepted date: July 15, 2015; Published date: July 25, 2015

Citation: Rao PK, Chatra L, Shenai P (2015) Walking ‘6 Year’ Molar. Dentistry 5:320. doi: 10.4172/2161-1122.1000320

Copyright: © 2015 Rao PK, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Visit for more related articles at Dentistry

A 30 year old male patient reported to our dental hospital with chief complaint of pain in the lower left back tooth. Patient gave us the history of a restoration done three months ago. The restoration was fractured ten days before reporting to the hospital. Clinical examination revealed the fractured restoration on the occlusal surface of mandibular left first molar. Intraoral periapical radiograph shows radiolucency involving occlusal enamel and dentine. Radioopaque restorative material is seen on the pulp chamber. In radicular aspect there are two mesial and two distal separate roots with separate root canals. Mesial roots are departed from each other towards mesially and distally. This gives the appearance of walking tooth. There is root dilaceration in one of the distal roots (Figure 1). Patient was advised for an endodontic treatment of mandibular left first molar.

dentistry-Intraoral-periapical

Figure 1: Intraoral periapical radiograph showing double mesial and distal roots with separate root canals.

The mandibular first molar tooth is also termed as “6 year molar” is the largest tooth in volume with complex in root and canal anatomy. There are many anatomical variations in canal and roots seen in mandibular first molar [1]. Some mandibular first molars shows five to eight separate root canals [2,3]. Like a number of root canals, number of roots are also reported. These extra root anomalies may develop during tooth bud morpho-differentiation as a result of a developmental aberration of both the ectoderm and mesoderm. Its severity depends on the formation stage of the involved tooth [4]. These additional extra roots are first mentioned in literature by Carabelli. These extra distolingual roots are called as radix entomolaris [5]. The prevalence of these radix entomolaris is different in different population. It is observed up to 3% in African population, 5% to 30% in Mongoloid population [5]. In Eurasian and Indian population it is less than 5% [6]. The presence of an additional mesiobuccal root is called radix paramolaris and prevalence of these roots are very rare and occurs less frequently than the radix entomolaris [6,7]. The dimensions of these radix entomolaris and radix paramolaris are vary from short conical extention to a mature root with normal length and root canal [8].

The present case describes a four rooted mandibular first molar with separate two mesial and two distal roots with independent root canals. Carlsen and Alexanderson described four different types of radix entomolaris and two different types of radix paramolaris (Table 1) [6].

Types of Radix Entomolaris
Type - A Distally located cervical part with two normal distal root components
Type – B Same as type A but only one normal distal component
Type – C Mesially located cervical part
Type - AC Central location between mesial and distal root components
Types of Radix Paramolaris
Type – A Refers to an RP in which the cervical part is located on the mesial root complex
Type - B Refers to an RP in which the cervical part is located centrally, between the mesial and distal root complexes.

Table 1: Types of radix entomolaris and radix paramolaris by Carlsen and Alexanderson.

The intension of this letter is to intensify the complexity of anatomical variation of mandibular first molars. Complete knowledge about the root and canal morphology and also their morphological variations will help the dentist in planning the treatment and improving the better prognosis. Careful examination of the pre-operative radiographs will help to decrease the failure rates of root canal therapy.

References

Select your language of interest to view the total content in your interested language
Post your comment

Share This Article

Relevant Topics

Recommended Conferences

  • 39th Asia-Pacific Dental and Oral Care Congress
    October 26-28, 2017 Osaka, Japan
  • American World Dentistry
    November 13-14, 2017 San Antonio, U
  • 39th South American Dental Congress
    Dec 4-6,2017 Sao Paulo,Brazil

Article Usage

  • Total views: 11609
  • [From(publication date):
    August-2015 - Oct 22, 2017]
  • Breakdown by view type
  • HTML page views : 7852
  • PDF downloads :3757
 

Post your comment

captcha   Reload  Can't read the image? click here to refresh

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

Agri, Food, Aqua and Veterinary Science Journals

Dr. Krish

[email protected]

1-702-714-7001 Extn: 9040

Clinical and Biochemistry Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Business & Management Journals

Ronald

[email protected]

1-702-714-7001Extn: 9042

Chemical Engineering and Chemistry Journals

Gabriel Shaw

[email protected]

1-702-714-7001 Extn: 9040

Earth & Environmental Sciences

Katie Wilson

[email protected]

1-702-714-7001Extn: 9042

Engineering Journals

James Franklin

[email protected]

1-702-714-7001Extn: 9042

General Science and Health care Journals

Andrea Jason

[email protected]

1-702-714-7001Extn: 9043

Genetics and Molecular Biology Journals

Anna Melissa

[email protected]

1-702-714-7001 Extn: 9006

Immunology & Microbiology Journals

David Gorantl

[email protected]

1-702-714-7001Extn: 9014

Informatics Journals

Stephanie Skinner

[email protected]

1-702-714-7001Extn: 9039

Material Sciences Journals

Rachle Green

[email protected]

1-702-714-7001Extn: 9039

Mathematics and Physics Journals

Jim Willison

[email protected]

1-702-714-7001 Extn: 9042

Medical Journals

Nimmi Anna

[email protected]

1-702-714-7001 Extn: 9038

Neuroscience & Psychology Journals

Nathan T

[email protected]

1-702-714-7001Extn: 9041

Pharmaceutical Sciences Journals

John Behannon

[email protected]

1-702-714-7001Extn: 9007

Social & Political Science Journals

Steve Harry

[email protected]

1-702-714-7001 Extn: 9042

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords