Indirect Criteria Components

OUTLINE- prep

• supragingival margins

• proper circumscription of caries and defects on sound tooth structure

• gingival separation

• no damage of adjacent teeth AND/OR gingiva

INTERNAL- prep

• occlusal reduction

• gingival axial reduction

• mid axial reduction

• caries/defects completely removed

• base/build up

• free of undercuts

• proper planes/ POI

• rounded occlusal line angles

RETENTION- prep

• properly tapered walls 6 to 10 degrees

• proper wall height

• no undercuts or parallel walls

• secondary retentive features

MARGINAL FINISH- prep

• clear finish line, continuous and smooth

• shoulder type

• prep free of debris

• margins terminate on sound tooth structure (cannot be restorative material)

SURFACE- provisional

• smooth, free of pits/voids

• proper internal adaptation

• free of debris

MARGINS- provisional

• all margins sealed

• margins smooth and continuous

• no submarginal OR open OR excess

OCCLUSION- provisional

• typodont equilibrated

• provisional adjusted properly in MIP

• no interferences in excursive movements

• occlusal height and anatomy in harmony w/ adjacent teeth

CONTOUR/CONTACT- provisional

• interproximal contacts drag mylar and properly established

• axial contours proper

• embrasures properly contoured