EUROPEAN ORAL RESEARCH, cilt.59, sa.2, ss.101-107, 2025 (ESCI)
Purpose
This study aims to determine the prevalence of dens invaginatus (DI) in maxillary
lateral teeth within a Turkish subpopulation using cone-beam computed
tomography (CBCT) and to evaluate the relationship between the invagination and
the main root canal.
Materials and Methods
A total of 953 maxillary lateral teeth from 662 patients were evaluated for the
presence of DI. To ascertain the invagination's location in the crown from the axial
section, four equidistant areas were delineated, extending from the mesio-palatal
to the disto-palatal surface. Measurements included the vertical distance between
the top of the palatal pulp horn and the buccal pulp horn (h1), the closest distance
between the invagination and the buccal pulp horn (h2), and the dentin thickness
from the widest part of the invagination to the tooth's outer walls.
Results
DI was observed in 5% of the patients (33/662). Invaginations in the medial region
of the mesiopalatinal surface were statistically significantly more common in males
(p=0.049). The distances from the invagination to the buccal and distal walls were
also significantly longer in males (p=0.040 and p=0.008, respectively). There was no
statistically significant difference in the mean distances h1 and h2 according to sex
and age.
Conclusion
Based on CBCT measurements, investigating the presence of DI more
mesiopalatinally in males is recommended to prevent excessive tooth structure
loss. Additionally, given that DI is significantly closer to the buccal and distal walls in
females, a more conservative access cavity approach should be advised to minimize
the risk of perforation.