The accuracy of anatomic landmarks on the occlusal plane: a comparative study between conventional and 3D image method

Description

Supak Kingrungpetch, Weerapan Aunmeungtong, and Pathawee Khongkhunthian compared two ways of setting the occlusal plane, the flat reference surface used to align teeth and dentures. The traditional method uses a fox plane at the chairside; the digital method builds a 3D model from mouth scans, face scans, and cone-beam imaging. Forty-four volunteers with normal bites, half with orthodontic history, received both measurements.

Angles and distances between the occlusal plane and a standard ear-to-nose reference line differed significantly between methods on both sides of the face. The chairside method consistently read larger values, by roughly fourteen to twenty-two percent on angles. Still, both methods landed within a thirteen-to-twenty-degree deviation that clinicians accept. The authors conclude digital measurement is the more faithful of the two.

Catalog record

Source: https://europepmc.org/articles/PMC11610295