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[Micro-anatomy of the apical lateral foramina of permanent teeth]
1Department of Oral Anatomy and Physiology, Hubei Medical University, Wuhan 430071, China.
Abstract
Objective:
To provide data of apical lateral foramina of Chinese people's permanent teeth.
Methods:
The shape and diameter of the apical lateral foramina in 1,502 permanent teeth were observed under the XTL-2 stero-microscope.
Results:
The shape and diameter of 230 apical lateral foramina in the permanent teeth can be divided into four types: round (61.31%, diameter: 0.09-0.26 mm), oval (36.96%, diameter: 0.12-0.28 mm), renal (1.30%), and irregular (0.43%). The occurrence of the apical lateral foramina is 15.31% (230/1,502).
Conclusions:
The apical lateral foramina are found in 1/7 of 1,502 permanent teeth.