However, this is not applicable to patients with reverse overjet, as extension of the metal coverage beyond the incisolabial and in supraocclusion
with the opposing would create an aesthetic problem and a high dislodging force when biting.
(1) the distance from cuspid to cuspid in maxilla in millimeter measured with digital vernier caliper with a least count upto 0.1mm (2) shape of arch (U-shape/ square/v shape) (3) teeth alignments in anterior region in both jaws (labioversion/linguoversion/rotation) (4) teeth's width and thickness from canine to canine in both arches (5) spacing and their location (6) number of missing teeth and their location (7) wear patterns (attrition erosion and abrasion) (8) the curve of biting edges ( sharp/smooth) (9) occlusal level (infraocclusion/ supraocclusion
) (10) Unique dentistry ( macrodontia microdontia etc).
The double arch impression technique: a solution to prevent supraocclusion
in the indirect restoration.