Rating: 4

Notes for Improvement:
Pre-plan the location of the exit points to know where the buccal/lingual walls of the proximal box exits at. Keep the inclination of your preparation a little bit upright than what you have right now. The angulation needs to be the average of the inclination of the lingual and buccal surface and not rely on the inclination of the buccal surface alone.

Need to be careful with the remaining marginal ridge being not too thin. Avoid steps at the gingival floor area.

Relevant Tutorials:

[s3mediastream]s3streamingvideo,Creating A Flat Gingival Floor,10,0,0,Common-Mistakes+Creating_A_Flat_Gingival_Floor.mp4,,3600,,,internationaldentistcentral.com,top-left,,no,600,350,yes,bottom,,,,,no,no,no,internationaldentistcentral,0[/s3], [s3mediastream]s3streamingvideo,Axial Wall Parallel to Outer Surface with Clean Angle,40,0,0,Common-Mistakes+axial_wall_parallel_to_outer_surface_with_clean_angle.mp4,,3600,,,internationaldentistcentral.com,top-left,,no,600,350,yes,bottom,,,#666,,no,no,no,internationaldentistcentral,0[/s3], [s3mediastream]s3streamingvideo,90 Degree Exit Angle and Reverse S Curve,66,0,0,Common-Mistakes+ninety_degree_exitangle_and_reverse_s_curve.mp4,,3600,,,internationaldentistcentral.com,top-left,,no,600,350,yes,bottom,,,#666,,no,no,no,internationaldentistcentral,0[/s3]

[s3mediastream]s3streamingvideo,B&L Groove Extensions,4,0,0,Common-Mistakes+b_l_groove_extensions.mp4,,3600,,,internationaldentistcentral.com,top-left,,no,600,350,yes,bottom,,,,,no,no,no,internationaldentistcentral,0[/s3], [s3mediastream]s3streamingvideo,Lingual Tilt in Cavity Preparation,16,0,0,Common-Mistakes+lingual_tilt.mp4,,3600,,,internationaldentistcentral.com,top-left,,no,600,350,yes,bottom,,,#666,,no,no,no,internationaldentistcentral,0[/s3]