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iRubric: Fixed Prosthodontics ACC rubric

iRubric: Fixed Prosthodontics ACC rubric

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Fixed Prosthodontics ACC 
Fixed Prosthodontics PFM
Rubric Code: TX9B3CW
By Operative
Ready to use
Public Rubric
Subject: Health  
Type: Assignment  
Grade Levels: Graduate

Powered by iRubric All Ceramic Crown Preparation
  Ideal

100 pts

Acceptable

81 pts

Modifications

62 pts

Unacceptable

0 pts

Incisal/occlusal reduction

Ideal

Uniform incisal reduction
2.0 mm - 2.5 mm
Acceptable

Uneven reduction AND/OR
Occlusal 2.6 mm - 3.0 mm
Modifications

Uneven reduction AND/OR
1.5 mm - 2.0 mm
Unacceptable

Significant error AND/OR
>3.0 mm or < 1.5 mm
Axial reduction (Probe & Putty )

Ideal

Uniform reduction
≥1.0 mm - ≤ 1.5 mm
Acceptable

Uneven reduction
> 1.5 mm - ≤ 2.0 mm
F L M D
Modifications

Uneven reduction
≥.5 mm - < 1.0 mm
F L M D
Unacceptable

Significant error
F <.5 mm or > 2.0 mm
F L M D
Lingual Wall Height (Probe)

Ideal

1.5 mm- 2.0 mm
Acceptable

**************DO NOT USE*************
Modifications

1.0 mm - 1.4 mm
Unacceptable

< 1.5 mm
Taper and Line of Draw (Visual)

Ideal

Ideal 6° - 16° and LD along the long axis of the tooth
Acceptable

Slight over taper and LD along the long axis of the tooth
Modifications

Moderately Over Taper/Parallel and LD along the long axis of the tooth
Unacceptable

Significantly over taper OR LD with significant deviation
Undercut (Probe)

Ideal

No undercut
Acceptable

****************
DO NOT USE*********
Modifications

*********
DO NOT
Unacceptable

Undercut
Shoulder Width of the Margin

Ideal

Well defined shoulder
1.0 mm - 1.5 mm
Acceptable

1.6 mm - 2.0 mm
Modifications

0.5 mm - < 1.0 mm
Unacceptable

< 0.5 or > 2.0 mmm or Chamfer preparation
Significantly irregualr
Shoulder Finishing

Ideal

Continuous, smooth
Acceptable

Minor roughness
Modifications

Multiple areas of minor roughness/irregular/lack of definition
Unacceptable

Significantly rough, indefinite not continuous
Shoulder Angulation (Visual/Expl.)

Ideal

90°/ No “J” shape
Acceptable

Greater than 90°/ No “J” shape
Modifications

Less than 90°/ No “J” shape
Unacceptable

Unsupported enamel
“J” Shape
Shoulder Location

Ideal

0- ≤ 0,5 mm
below the free gingival margin no damage to the gingiva
Acceptable

> 0 - 0,5 mm
above free gingival margin no damage to the gingiva
Modifications

> 0.5 or <1 mm
above free gingival margin with no tissue damage
Unacceptable

Sub-gingival ≥ 1 or >1.0 mm both with tissue damage
Interproximal Clearance

Ideal

Perio-probe tip passes without binding
Acceptable

************DO NOT USE******************
Modifications

Perio-probe tip passes
with minor binding
Unacceptable

Perio-probe tip does not pass
interproximal
Line Angles (Tactile and Visual)

Ideal

Smooth/rounded line angles
Acceptable

************DO NOT USE******************
Modifications

Minor sharpness on finishing lines on a line angle
Unacceptable

Sharp Line Angles
Damage of Adj. Teeth (Vi

Ideal

No damage
Acceptable

Minor scratch
Modifications

Multiple areas of scratches/ Can be polished
Unacceptable

Significant damage/ Requires a restoration to fill the void




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