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Accession Number:
AD1183213
Title:
Occlusal Accuracy of Milled Denture Teeth with Different Morphologies
Report Date:
2021-06-21
Abstract:
Introduction: Currently, it is not known if occlusal morphology affects the accuracy of computer-aided design and computer-aided manufacturing (CAD/CAM) milled denture teeth. Objective: This study compared the occlusal accuracy of milled denture teeth designed from three molds: non-anatomical (0 deg), semi-anatomical (20 deg), and anatomical teeth (40 deg). Methods: Ten identical posterior sextants from each of the three molds were milled (imes-icore CORiTEC 350i Loader), scanned (Freedom HD), and digitally evaluated for accuracy (Materialise 3 Matic). Results: Analysis revealed minimal occlusal differences between stock and milled denture teeth. The largest discrepancies were within grooves, pits, and embrasures. Accuracy was calculated by using a computer generated point based comparison analysis feature. No significant difference (p-value = 0.44) in milling accuracy was observed among three molds (0 deg, 20 deg, and 40 deg). Conclusion: Within the limitations of this study, copy milling provides a smooth surfaced, occlusal reproduction of non-anatomical, semi-anatomical, and anatomical stock denture teeth with similar accuracy.
Document Type:
Conference:
Journal:
Pages:
29
File Size:
0.95MB
Contracts:
Grants:
Distribution Statement:
Approved For Public Release
