Analysis of movements in tooth removal procedures using robot technology

PLoS One. 2023 May 18;18(5):e0285503. doi: 10.1371/journal.pone.0285503. eCollection 2023.

Abstract

Being one of the oldest en most frequently performed invasive procedures; the lack of scientific progress of tooth removal procedures is impressive. This has most likely to do with technical limitations in measuring different aspects of these keyhole procedures. The goal of this study is to accurately capture the full range of motions during tooth removal as well as angular velocities in clinically relevant directions. An ex vivo measuring setup was designed consisting of, amongst others, a compliant robot arm. To match clinical conditions as closely as possible, fresh-frozen cadavers were used as well as regular dental forceps mounted on the robot's end-effector. Data on 110 successful tooth removal experiments are presented in a descriptive manner. Rotation around the longitudinal axis of the tooth seems to be most dominant both in range of motion as in angular velocity. Buccopalatal and buccolingual movements are more pronounced in the dorsal region of both upper and lower jaw. This study quantifies an order of magnitude regarding ranges of motion and angular velocities in tooth removal procedures. Improved understanding of these complex procedures could aid in the development of evidence-based educational material.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Jaw
  • Mandible
  • Movement
  • Robotics*
  • Tooth Extraction

Grants and funding

T.C.T. van Riet received both the 'Open Mind' Grand from the Dutch Research Council, www.nwo.nl/en (project number 17394, 2018) and the 'Innovation Impulse' from the Amsterdam University Medical Center, www.amsterdamumc.nl (no project number available, 2021). Both funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.