Related Experiment Video
Updated: Aug 23, 2026

Measuring Maxillary Posterior Tooth Movement: A Model Assessment using Palatal and Dental Superimposition
Published on: February 23, 2024
Three-dimensional dental arch and palatal form changes after extraction and nonextraction treatment. Part 3.
Wolfgang Heiser1, Andreas Niederwanger, Beatrix Bancher
1Department of Internal Medicine, University of Innsbruck, Innsbruck, Austria. Dr.Heiser@aon.at
Abstract:
The purpose of this study was to investigate changes in the palatal form in patients treated with and without premolar extractions. Records collected at pretreatment, at bracket removal, at the end of retention, and 5 years out of retention were examined. Stone casts were mounted on an articulator with an anatomic face-bow and a central wax record, and measurements were made with a 3-dimensional digitizer. The hypothesis that orthodontic treatment with premolar extractions changes the palatal form was verified.
