Maxillary cast

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Educational prototype

CastTrayRim

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Z ↑ insertion direction · dimensions in mm

LECTURE REFERENCE

Dimensions with their reference points

Presets transcribed from your course material. Confirm the marked anatomy and measurement origin on each cast.

Feature	Course value	Source
Posterior rim length	14 mm forward of each hamular notch (upper) or two-thirds-height retromolar pad mark (lower).	User design setting; length in the cast XY projection, separate from height.
Tray border	Lecture: 1 mm occlusal. Current user target: about 2 mm short.	Custom Tray, p. 4
Rim base width	14 mm	Custom Tray, pp. 12, 14
Anterior labial flare	5–10°	Custom Tray, p. 12
Upper anterior height	22 mm at lateral incisor reference	Custom Tray, p. 13
Upper posterior height	18 mm at #14 reference	Custom Tray, p. 13
Upper occlusal width	6 mm anterior / 10 mm posterior	Custom Tray, p. 13
Lower anterior height	16 mm at lateral incisor reference	Custom Tray, p. 14
Lower posterior plane	Marked 2/3 retromolar pad level	Custom Tray, p. 14; Cast Analysis, p. 60
Incisor guide	7–8 mm anterior to papilla center	Cast Analysis, pp. 37–38
Canine guide	Approximately 20 mm from papilla	Cast Analysis, p. 47

Editable engineering settings: 2 mm tray thickness, 1 mm relief, 0.8 mm sampling and lower rim widths are starting settings, not values established by these slides. Tray thickness and relief are measured along the chosen insertion axis. Posterior lower landmarks must be placed at the intended level; the app does not infer the pad height automatically.

Scope: manual cast analysis and design geometry. Soft tissue behavior, facial midline, functional borders, jaw relation and vertical dimension cannot be established from a single cast STL. The final impression and jaw relation lectures remain clinical/typodont checks outside this model.

Before fabrication: review border extension, relief, insertion direction, local thickness, fit, intersections, printer/material compensation and biocompatibility. A closed STL alone does not establish suitability for use.