Abstract

Presently study carried out an anatomical and morphometric analysis of the retromolar triangle and their relationships with the mandibular canal. Sixthy six adults mandibles were used without gender distinction, a sample of 120 retromolar triangles was identified and defined, each one of their sides was measured with a digital caliper and the number of present foramina in its area was counted. In an aleatory way 25 mandibles were selected to be traversely cut in the area of the retromolar triangle, and the distance was measured from the surface to mandibular canal. The area presented predominantly a triangular shape (80%), occupied by a variable number of little foramina, being more numerous those of small diameter. The medial side of the triangle was greatest (mean=15.91mm), while the anterior side was minor (mean=6.33mm). The area characteristics of the allow the anesthetic infiltration that diffuses until the mandibular canal