Accuracy of space analysis with emodels and plaster models

Area of Science:

• Orthodontics
• Dental Morphology
• Biometrics

Background:

• Traditional Bolton analysis relies on manual measurements of plaster dental models.
• Assessing tooth size discrepancies is crucial for orthodontic treatment planning.

Purpose of the Study:

• To compare the accuracy and speed of the eModel software against traditional methods for Bolton analysis.
• To evaluate the time efficiency of digital versus manual measurements for arch length and Bolton ratio calculations.

Main Methods:

• Dental models from 30 patients were used for both digital (eModel software) and manual measurements.
• Mesiodistal tooth widths were measured using digital calipers and the eModel software.
• Time taken for measurements and analysis was recorded, and magnification was assessed using ball bearings.

Main Results:

• No significant difference was found in Bolton ratio calculations between the two methods.
• Arch length measurements showed a statistically significant but clinically insignificant difference.
• eModel software was, on average, 65 seconds faster for measurements and calculations.
• Magnification assessment showed a statistically significant difference in ball bearing measurements, though small.

Conclusions:

• eModel software is a viable alternative to traditional methods for Bolton analysis, offering comparable accuracy and improved speed.
• Clinicians can confidently utilize eModel software for accurate diagnoses in orthodontic treatment planning.