To test for possible morphological differences between migratory types, the otolith data were contrasted with the distribution of oculoscapular canal morphotypes (as determined from the pore openings of the canals; Figure 2).
CBCT images of mandibular first molars were evaluated for the following details: (1) number of roots according to sex, (2) number of apical foramina according to sex, (3) frequency distribution of root canal configurations defined in accordance with Vertucci's classification, and (4) frequency of occurrence of MM canals according to age.
There were no significant differences in the number of roots, incidence of apical foramina, or distribution of different canal configurations of mandibular first molars between men and women (P > 0.05).
No statistically significant differences were found between the sexes in terms of number of roots, incidence of apical foramina, or distribution of different canal configurations of mandibular first molars.
In this study, CBCT images of 900 mandibular first molars were evaluated for the following details: (1) number of roots, (2) number of apical foramina, (3) frequency distribution of root canal configurations defined in accordance with Vertucci's classification, and (4) frequency of occurrence of middle mesial (MM) canal.
Canal reduction is thought to be an adaptation to distinct microhabitats with slow-flowing water conditions [ 45], and the congruence between genetic structure and geographic distribution of oculoscapular canal morphotypes in the tidewater goby Eucyclogobius newberry suggests that these variations can be partly inherited [ 46].
To further describe the root filling quality the root fillings were divided in nine equal fractions to provide an illustrative overview of the distribution of voids throughout the canal.
The distribution of photocytes within the meridional canals is asymmetric and discontinuous; photocytes are only found on one side of each canal adjacent to the minor body axes, on the same side as the testes, but not on the side containing the ovaries [ 39].
The side-vented group in our study produced cleaner canals at the coronal and middles thirds compared to the tip-vented group, which is in agreement with other studies that showed the perforated endodontic irrigation needles had a greater distribution of irrigating solution and cleaner canals than a conventional irrigation needle [ 32- 34].
This paper examines the fairness in distribution of water in a tertiary canal within the Indus Basin Irrigation System.
