Comparative Evaluation of Orthodontic Measurements Using Two Intraoral Scanners Versus Conventional Plaster Models: An In Vivo Study

Authors

• Pranoy Nair, Institute of Dental Studies & TechnologiesFollow
• Achint Juneja, Institute of Dental Studies & TechnologiesFollow
• Monis Raza, Institute of Dental Studies & TechnologiesFollow
• Prashant Shahi, Institute of Dental Studies & TechnologiesFollow
• Ridhi Kothari, Institute of Dental Studies & TechnologiesFollow
• Deepthi Raj, Institute of Dental Studies & TechnologiesFollow

Abstract

Introduction: This study evaluated and compared the accuracy and reliability of two intraoral scanners, iTero Element 1 and Panda P2, with conventional plaster models for essential orthodontic measurements.

Methods: Thirty subjects were evaluated using three methods: plaster casts, iTero Element 1, and Panda P2. Inter-canine distance, inter-molar distance, overjet, overbite, and Bolton’s ratios were measured. Data was analysed using one-way ANOVA and Tukey’s post-hoc test after confirming normality (Shapiro–Wilk). Intra-operator reliability was assessed using Dahlberg’s formula and ICC.

Results: No statistically significant differences were observed among the three methods (p > 0.05). Both scanners demonstrated high repeatability and minimal measurement error, showing strong agreement with conventional models.

Conclusions: iTero Element 1 and Panda P2 scanners provided clinically equivalent accuracy to plaster models. Digital scanning offers reliable, efficient, and patient-friendly alternatives for orthodontic diagnostics.

Recommended Citation

Nair, Pranoy; Juneja, Achint; Raza, Monis; Shahi, Prashant; Kothari, Ridhi; and Raj, Deepthi (2026) "Comparative Evaluation of Orthodontic Measurements Using Two Intraoral Scanners Versus Conventional Plaster Models: An In Vivo Study," International Arab Journal of Dentistry: Vol. 17: Iss. 2, Article 9.
DOI: https://doi.org/10.65314/2218-0885.1876
Available at: https://e-journals.usj.edu.lb/iajd/vol17/iss2/9