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Related Concept Videos

Tooth Anatomy01:21

Tooth Anatomy

The human tooth enables us to eat a variety of foods, speak clearly, and even aid in shaping our faces. Teeth are composed of various elements that work together. Here's a detailed look at the anatomy of a human tooth.
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or grinding food.

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Inter- and intraindividual variability in virtual single-tooth implant positioning.

Clemens Raabe1, Philippe Biel1, Fabrice A Dulla1

  • 1Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland.

Clinical Oral Implants Research
|November 15, 2023
PubMed
Summary

Expertise and planning time significantly impact virtual implant positioning accuracy, with substantial variability observed even among experienced dental professionals. Careful planning is crucial for optimal outcomes.

Keywords:
alveolar ridgecomputer‐assisteddental implantsdigitaldigital imagingimage processingimplant planning

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Area of Science:

  • Dental Implantology
  • Surgical Planning
  • Digital Dentistry

Background:

  • Virtual implant planning software is increasingly utilized for precise single-tooth replacement.
  • Understanding variability in planning is crucial for optimizing treatment outcomes and patient safety.

Purpose of the Study:

  • To assess inter- and intraindividual variability in virtual single-tooth implant positioning.
  • To evaluate the influence of examiner expertise, specialty, planning time, and prosthetic setup on positioning accuracy.

Main Methods:

  • Prospective study involving 15 patients with pre- and post-extraction scans.
  • Twelve examiners (novices and experts in oral surgery/prosthodontics) performed virtual implant planning.
  • Implant positions were analyzed for deviations using 3D superimposition after repeated planning sessions.

Main Results:

  • Significant inter- and intraindividual deviations in angular, crestal, and apical implant positions were observed.
  • Expert planners showed statistically lower deviations than novices.
  • Increased planning time reduced deviations for experts but not novices; oral surgeons had lower crestal deviations.

Conclusions:

  • Substantial variability exists in virtual implant positioning, influenced by expertise and time investment.
  • Digital planning requires careful consideration of individual skill and dedicated planning duration.
  • Further research may refine protocols to minimize deviations in virtual implant planning.