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Utilizing self-assessment software to evaluate student wax-ups in dental morphology
Karen R McPherson1, Anthony S Mennito2, Jompobe Vuthiganon2
1Dr. McPherson is Assistant Professor, Department of Oral Rehabilitation, James B. Edwards College of Dental Medicine, Medical University of South Carolina; Dr. Mennito is Assistant Professor, James B. Edwards College of Dental Medicine, Medical University of South Carolina; Dr. Vuthiganon is Assistant Professor, James B. Edwards College of Dental Medicine, Medical University of South Carolina; Dr. Kritzas is an officer in the United States Naval Dental Corps; Dr. McKinney is an officer in the United States Naval Dental Corps; Dr. Wolf is Assistant Professor, James B. Edwards College of Dental Medicine, Medical University of South Carolina; and Dr. Renne is Associate Professor, James B. Edwards College of Dental Medicine, Medical University of South Carolina. drkaren71@aol.com.
New dental software (E4D Compare) offers more reliable student dental wax-up evaluations than traditional visual grading. This digital tool achieved 96% agreement, significantly improving upon faculty grading consistency.
Area of Science:
- Dental Education
- Biomedical Engineering
- Digital Dentistry
Background:
- Traditional preclinical dental education relies on subjective visual inspection for student work evaluation.
- Existing methods suffer from low interrater and intrarater reliability, leading to inconsistent feedback.
- Objective, quantifiable assessment tools are needed to enhance dental education.
Purpose of the Study:
- To compare the grading reliability of a new experimental software (E4D Compare) against faculty visual inspection.
- To determine an optimal tolerance value for the software's 3D surface-mapping evaluation.
- To assess the potential of digital tools for consistent feedback in preclinical dental training.
Main Methods:
- 66 student-produced dental wax-ups were digitally scanned and compared to an ideal standard using E4D Compare software.
- 3D surface-mapping technology calculated the surface area within a defined tolerance of the ideal.
- Faculty grading and software-generated numerical evaluations were compared for reliability.
Main Results:
- A software tolerance level of 450 μm demonstrated 96% agreement in grading.
- Faculty visual inspection achieved only 53% agreement, highlighting significant variability.
- The software provided a more consistent and objective evaluation metric.
Conclusions:
- The E4D Compare software offers a highly reliable method for evaluating student dental wax-ups.
- This digital tool can serve as a valuable self-assessment resource for dental students.
- Implementing such software can standardize preclinical dental education and improve learning outcomes.

