The sizes of pulp chambers of molars with severe root curvatures – in vitro comparative study
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Дата
2012-04
Автори
Boteva, E.
Iovchev, D.
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Издател
Централна медицинска библиотека, МУ София / Central Medical Library - MU Sofia
Резюме
The macromorphology of pulp chambers has been studied in the
last few decades, but there is a lack of knowledge on the sizes of the pulp chambers
of molars. The aim of the present study was to measure the size of the pulp
chambers of upper and lower molars with different root curvatures and to compare
them with the same dimensions in molars without root curvatures. Seventy-seven
upper and lower molars, matured, fully mineralized and sound were selected in the
following groups: two groups, including upper and lower teeth, respectively and
three groups, divided as follows: with straight roots up to 25-30º, with severe curvatures
up to 45º and with abnormalities 45º-90º from the axial axis. Three dimensions
of the crowns were measured for each tooth in mm: one mesio-distal and two
bucco-lingual dimensions, one of then being measured from the top of buccal cusp
to the top of the mesio-lingual (palatal) cusp. All teeth were submitted to X-rays and
were photographed after opening the pulp chambers. Measurements of the pulp
chambers were made after opening with horizontal cuts, made 1 mm apically from
the equator with a diamond blend. The two buccolingual dimensions were refered
to as L1 and L2, the mean value – as L and the mesio-distal – as MD, sizes were
measured in the widest part of the pulp chamber with an endodontic fi le and endoblock
in mm. A careful approach to these sizes of the pulp chambers of the molars
with severe curvatures can safe hard dental tissues during endocavity and pulp
chamber preparation .These fi ndings are important for the prevention of crown and
root fractures, and teeth loses and for lowering the use of posts and pins and the
use of crowns and bridges in young age groups.
Описание
Address for correspondence:
Assoc. Prof. Dr. Ekaterina Boteva
Deptartment of Conservative Dentistry
Faculty of Dental Medicine;
1 Georgy Sofi isky str.;
Sofia, Bulgaria;
tel. +359888328327;
e-mail: e_boteva@abv.bg
Ключови думи
endodontics, curved root canals, pulp anathomy
Цитирания
E. Boteva and D. Iovchev. The sizes of pulp chambers of molars with severe root curvatures – in vitro comparative study - Acta medica bulgarica , 39, 2012, No 1, 92-96.