Diagnostic Wax-Up Purpose — ORE Part 1 MCQ
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Correct answer: C — To plan the intended tooth form and occlusal scheme
Explanation lettering: E = shown as A · D = shown as B · A = shown as C · C = shown as D · B = shown as E
A diagnostic wax-up is used to design and assess the proposed restorative outcome before irreversible treatment. It helps the clinician plan tooth morphology, proportions and occlusal relationships, and can guide conservative preparation through a subsequent mock-up or preparation index. B is incorrect because a wax-up may help fabricate a provisional restoration, but is not itself the definitive temporary restoration. C is not a function of wax-up planning. D is incorrect because shade selection requires clinical shade assessment and is not determined by the wax form. E is incorrect because radiographs remain part of appropriate diagnostic assessment; a wax-up complements rather than replaces them.
Reference: Villalobos-Tinoco J, Jurado CA, Rojas-Rueda S, Fischer NG. Additive Wax-Up and Diagnostic Mockup As Driving Tools for Minimally Invasive Veneer Preparations. Cureus. 2022. https://pubmed.ncbi.nlm.nih.gov/36046283/