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Bolton's analysis using a photogrammetric method on occlusal photographs.

Ashwin Prakash1, Prasad Chitra2

  • 1Orthodontics Al Azhar Dental College, Thodupuzha, Kerala,India.

European Oral Research
|January 21, 2021
PubMed
Summary

This study validates a new photogrammetric technique using occlusal photos for Bolton analysis. The method reliably measures tooth size, offering an effective clinical tool for dental assessments.

Keywords:
Bolton’s analysisNemocephOphotographPhotogrammetryTooth dimensions

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Area of Science:

  • Dental diagnostics
  • Orthodontics
  • Photogrammetry

Background:

  • Accurate dental measurements are crucial for diagnosing and treating malocclusions.
  • Traditional methods for dental analysis, such as using plaster casts, can be time-consuming and resource-intensive.
  • Photogrammetry offers a potential digital alternative for dental measurements.

Purpose of the Study:

  • To introduce and evaluate a novel photogrammetric technique for performing Bolton's analysis using standardized occlusal photographs.
  • To assess the reliability and validity of this photogrammetric method by comparing it against traditional measurements from plaster study casts.

Main Methods:

  • Standardized occlusal photographs and plaster study casts were acquired from 16 young adult subjects.
  • Mesio-distal tooth dimensions were measured using calibrated software on photographs and a digital caliper on casts.
  • Bolton's analysis was performed using both methods, and 28 parameters were compared.

Main Results:

  • The photogrammetric technique demonstrated statistically significant and excellent correlation (r > .80) for all 28 measured parameters.
  • Key variables for Bolton's analysis showed a highly significant correlation (r > .96) between the photogrammetric and plaster cast methods.

Conclusions:

  • Photogrammetry is a dependable method for accurately measuring mesio-distal tooth dimensions.
  • The proposed photogrammetric technique using occlusal photographs provides a reliable and effective clinical approach for conducting Bolton's analysis.