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iRubric: Operative II 2020 - Class II Amalgam Didactic Preparation rubric

iRubric: Operative II 2020 - Class II Amalgam Didactic Preparation rubric

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Operative II 2020 - Class II Amalgam Didactic Preparation 
Class II Amalgam Didactic Preparation
Rubric Code: MX2C956
By Operative
Ready to use
Public Rubric
Subject: Health  
Type: Assessment  
Grade Levels: Graduate

Powered by iRubric Class II Amalgam Didactic Preparation
  Ideal

100 pts

Acceptable

81 pts

Modifications

67 pts

Unacceptable

0 pts

OUTLINE FORM & ACCESS
Outline & Reverse Curve

(Pencil)
Ideal

Correct Outline & Smooth Transition
Acceptable

********************************************

*********************N/A********************

********************************************
Modifications

Slightly underextended or overextended
Unacceptable

Significant overextension;
Sharp Transition or no transition.
B & L Clearance

(Metal Band & Blue and Black Tips)
Ideal

Metal matrix band passes without resistance
Acceptable

********************************************

*********************N/A********************

********************************************
Modifications

>0.5 - <0.75 mm (blue tip passes)
Unacceptable

No clearance (metal matrix band does not pass)
or >0.75 mm (black tip passes)
Gingival Clearance

(Blue/Black Tips & 1.0 Hatchet)
Ideal

0.5 - <0.75 mm (blue tip passes)
Acceptable

>0.75 mm (black tip passes)
Modifications

********************************************

*********************N/A********************

********************************************
Unacceptable

No clearance (blue tip does not pass)
or >1.0 mm (1.0 hatchet passes)
Isthmus

(1.8 Condenser & 1.0 and 1.5 Hatchet)
Ideal

1.5 (1.5 hatchet passes) - <1.8 mm (condenser does not pass)
Acceptable

********************************************

*********************N/A********************

********************************************
Modifications

1.0 - <1.5 mm (1.0 hatchet passes)
Unacceptable

>1.8 mm (1.8 condenser passes)
or <1.0 mm (1.0 hatchet does not pass)
Adjacent Tooth

(Explorer)
Ideal

No damage
Acceptable

Minor isolated scratch

B L M D G
Modifications

2-3 scratches

B L M D G
Unacceptable

>3 scratches or Damaged or Nicked

B L M D G
CSM

(Explorer)
Ideal

Smooth
Acceptable

1 area of irregularity

B L M D G
Modifications

2-3 areas of irregularities
B L M D G
Unacceptable

>3 areas of irregularities or 1 gross irregularity

B L M D G
INTERNAL FORM
Axial Width

(1.0 and 1.5 Hatchet)
Ideal

1.0 - 1.5 mm (1.0 hatchet passes)
Acceptable

********************************************

*********************N/A********************

********************************************
Modifications

********************************************

*********************N/A********************

********************************************
Unacceptable

>1.5 mm (1.5 hatchet passes)
or < 1.0 mm (1.0 hatchet does not pass)
Pulpal Depth

(Periodontal Probe)
Ideal

1.5 - 2.0 mm
Acceptable

********************************************

*********************N/A********************

*********************************************
Modifications

1 - < 1.5 mm
Unacceptable

<1.0
or >2.0 mm
Wall Orientation

(Periodontal Probe)
Ideal

B L A Convergent to occlusal

M D Divergent to occlusal
Acceptable

Parallel

B L M D A
Modifications

Overly Convergent/Divergent (<45 degrees)

B L M D A
Unacceptable

B L A Divergent to occlusal

M D Convergent to occlusal

Significantly overly convergent/divergent (>45 degrees)
Walls and Line Angles Transition

(Explorer)
Ideal

Smooth
Acceptable

1 area of irregularity

B P G B L M D
Modifications

2-3 areas of irregularities

B P G B L M D
Unacceptable

>3 areas of irregularities
or 1 grossly irregularity,

B P G B L M D
Proximal Box (per box)

(Periodontal Probe)
Ideal

All walls at 90 degrees
Acceptable

********************************************

*********************N/A********************

********************************************
Modifications

One wall not at 90 degrees

MB ML DB DL
Unacceptable

Two walls not at 90 degrees

MB ML DB DL



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