Low

 

Crowns:
Reduce the incisal edge by 2mm. Labial / Buccal areas
1 - 1,5mm. Distinct champfer
 or 90°shoulder. Palatinal minimum space of 1mm.
No sharp edges.
Inlays /Onlays:
Inner surfaces should not be parallel, but open with an angle of 15° to the occlusal and approx. 2mm deep.
No feather edges nor opposing bite at tooth / inlay junction.		  
Veneers / Laminates:
All prep Margins as champfers of 0.5 mm. minimal thickness 0.5mm to the labial anterior and up to 1mm to the incisal edge.