2017, Number 57
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Oral 2017; 18 (57)
Mesiovestibular cannal morphometric study in the permanent second upper molar on different etary groups
Urrutia-García D, Pablo-David O, Visvisian MRC
Language: Spanish
References: 32
Page: 1474-1480
PDF size: 246.25 Kb.
ABSTRACT
Introduction. In order to perform efficiently, is an essential requirement for the endodoncist to know the area where he is going to
work. The second permanent upper molar (2SPM) is maybe one of the most complex teeth and at the same time its root canals’
internal configuration is the least described in classic literature. Besides this lack of specific information, is also important to consider
the changes that the passing of time produce in them.
Objective. To analyze comparatively between age groups, the effect that age
has as regards the 2SPM root canals morphology, through an endodontic vision.
Materials and methods. 40 2SPM were analyzed,
extracted for different reasons, divided in four age groups (20 to 29; 30 to 39; 40 to 49 and over 50 years old) in order to study the
changes that age produces in their internal morphology. N1: two mm from the foramen. N2: in the union of the apical third with the
medium third of the root. N3: in the union of the medium third with the coronal third of the root. N4: two mm from the dental cervix. The
teeth were included in resin and horizontally cutted at four root’s levels. The cuts were polished with a particle size of 1200 in order to
be scanned and observated by and stereoscopic magnifying glass at 6x and 16x.
Conclusion. The most relevant findings were: 1) A
high percentage of a second root canal in the MV root or a mesiobuccalpalatine canal MVPC, independently of the age (40 %), making
part of what we will name bi canal system between MVVC and MVPC. 2) The changes in the morphology of the MVC with the passing
of time, either when it has a unique canal or it makes part of a bi-canal system.
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