Esthetic

 

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 0,5mm.
05,mm minimal thickness 0,5mm
 to the labial anterior and up to 1mm to the incisal edge.