Finding the MB2 - part 2
10/11/2020
Fitim Shabani
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Finding the second buccomesial canal of the first maxillary molars called MB2 is a challenge for any dentist due to its localization and anatomy.
The MB2 canal is usually located in a virtual line between the MB1 canal and the palatal canal, but its different positioning along this virtual line makes it even more difficult to find.
The methods that help in finding the second bucomesial canal of the first maxillary molars are:
- Magnification
- Radiograph
- Access Cavity
- Bubble test
- Blood tracing
- White and Red lines
- Exploaring
In this second part of the article I will introduce the Bubble test method for finding the MB2.
Fig. 1
Initial situation
Fig. 2
Pre operative xray
Fig. 3
Isolation
Fig. 4
Mecanical preparation of the P, DB, and MB1.
The bubble test method
Fig. 5
Post operative xray
Fig. 6
Post operative xray
Conclusions
If we believe that the MB2 canal is present, then the probability is greater to find it. Adding to this the knowledge about the anatomy of the teeth, the proper instruments and the dental microscope, it is very easy to find. We must not allow the whole endodontic work to fail because of one canal.
So look for it, find it, prepare it, and fill it.
Bibliography
-Louis J. Buhrley, DMD, Michael J. Barrows, DDS, MS, Ellen A. BeGole, PhD, and Christopher S. Wenckus, DDS , Effect of Magnification on Locating the MB2 Canal in Maxillary Molars, Journal of Endodontics 2002
-Marcelo Santos Coelho, Mariane Floriano Lopes Santos Lacerda et Al. Locating the second mesiobuccal canal in maxillary molars: Challenges and solutions, Clinical,cosmetic and Investigational Dentistry 2018
-Adham A.Azim BDS, Katharina A.Azim,MA,Med Allan S.Deutsch, DMD, and George T.-J. Huang, DDS, MSD,Dsc Acquisicion of Anatomic Parameters Concerning Molar Pulp Chamber Landmarks Using Cone-beam Computed Tomography, JOE 2014
-Lieutenant Commander Bernard H. Hofmann, DC, USNR and Captain Jeffrey R. Thorpe, DC, USN, Location of the second mesiobuccal canal of maxillary molars in endodontic therapy, Naval Postgraduate Dental SchoolNational Naval Dental Center Bethesda, Maryland December 2002.
-Paul Krasner, DDS, and Henry J. Rankow, DDS Anatomy of the Pulp-Chamber Floor, Journal of Endodontics
-Mitchell H. Davich, DMD, FACD, FICD The MB2 Canal: Following the Map of the Pulpal Floor, Endodontic therapy Vol 5 Nr 2
-Leena Smaldi, BDS, MDentSci, FDSRCS(Ed) and Ameen Khraisat, BDS, PhD, Detection of a second mesiobuccal canal in the mesiobuccal roots of maxillary first molar teeth, University of Jordan
-Louis J. Buhrley, DMD, Michael J. Barrows, DDS, MS, Ellen A. BeGole, PhD, and Christopher S. Wenckus, DDS , Effect of Magnification on Locating the MB2 Canal in Maxillary Molars, Journal of Endodontics 2002
-Marcelo Santos Coelho, Mariane Floriano Lopes Santos Lacerda et Al. Locating the second mesiobuccal canal in maxillary molars: Challenges and solutions, Clinical,cosmetic and Investigational Dentistry 2018
-Adham A.Azim BDS, Katharina A.Azim,MA,Med Allan S.Deutsch, DMD, and George T.-J. Huang, DDS, MSD,Dsc Acquisicion of Anatomic Parameters Concerning Molar Pulp Chamber Landmarks Using Cone-beam Computed Tomography, JOE 2014
-Lieutenant Commander Bernard H. Hofmann, DC, USNR and Captain Jeffrey R. Thorpe, DC, USN, Location of the second mesiobuccal canal of maxillary molars in endodontic therapy, Naval Postgraduate Dental SchoolNational Naval Dental Center Bethesda, Maryland December 2002.
-Paul Krasner, DDS, and Henry J. Rankow, DDS Anatomy of the Pulp-Chamber Floor, Journal of Endodontics
-Mitchell H. Davich, DMD, FACD, FICD The MB2 Canal: Following the Map of the Pulpal Floor, Endodontic therapy Vol 5 Nr 2
-Leena Smaldi, BDS, MDentSci, FDSRCS(Ed) and Ameen Khraisat, BDS, PhD, Detection of a second mesiobuccal canal in the mesiobuccal roots of maxillary first molar teeth, University of Jordan
