Noncontact intraoral measurement of force-related tooth mobility.
The aim of this pilot study was to measure force-related tooth mobility. Vertical and horizontal anterior tooth mobility in 31 healthy periodontal subjects was measured by a noncontact optical measurement technique. The subjects continuously increased the force on each tooth by biting on a load cell. An automated software program recorded tooth displacement at 9-N intervals. Vertical and horizontal displacements were subsequently measured. The vector of tooth mobility in the buccal direction was calculated using the Pythagorean theorem. The average displacements over all subjects for each tooth were determined. Global differences were assessed with the Wilcoxon test. There were no significant differences between contralateral teeth overall load stages. There were no significant differences in tooth mobility between the central and lateral incisors except for in the horizontal direction. However, there were significant differences between central incisor and canine and lateral incisor and canine teeth.
Dental Clinic 2, Department of Prosthodontics, University Clinic Erlangen, Glueckstr. 11, 91054 Erlangen, Germany.
Matthias
M
Göllner
Alexandra
A
Holst
Christine
C
Berthold
Johannes
J
Schmitt
Manfred
M
Wichmann
Stefan
S
Holst
D000328:Adult; D001696:Biomechanical Phenomena; D001732:Bite Force; D003481:Cuspid / Q000502:physiology; D004867:Equipment Design; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods; D007180:Incisor / Q000502:physiology; D008297:Male; D010780:Photogrammetry / Q000295:instrumentation / Q000379:methods; D010865:Pilot Projects; D012984:Software; D014086:Tooth Mobility / Q000503:physiopathology*; D055815:Young Adult