Practical #1: #12 MOD Prep and #13 DO Restoration

#12 MOD Preparation and #13 DO Restoration

(Buccal, Lingual, and Occlusal Views)

*Occlusal View 

*Lingual View 

*Buccal view 

#12 MOD Preparation

Strengths

External Form:

• Occlusal outline form is centered over the grooves, smooth, and flowing
•  Proper isthmus width

Internal Form:

• Pulpal floor with is between 1.5-1.7 mm
• B/L walls: divergent
• Axial wall depth/floor width: proper depths with proper curvature

 *NO adjacent tooth damage.

Areas Needing Improvement

External Form:

• Proximal margins extended slightly beyond ideal measurements
•  Gingival floor depth is slightly >0.5 mm
• Proximal box: cavosurface isn’t met at a 90 degree angle

Refinement:

•  Lingual cavosurface margin is slightly friable
• Walls of the preparation could be smoother

 #13 DO Restoration

 Strengths

 Occlusal Anatomy:

• Harmonious form of normal tooth anatomy
• Contact restored

Margins and Proximal Contacts:

•  Margins are of proper height and anatomy with no significant flash
• Proper contacts with no floss shredding/breaking

Areas Needing Improvement

• Occlusal anatomy could use more anatomical definition
• Sight deviation from normal proximal contour
•  Surface finish is slightly rough with minimal amalgam staining