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2995 Dental

Cusp reduction can be considered in all of the following situations except:

AWhen the outline form has extended one third the distance from a primary groove to a cusp tip (Correct Answer)
BWhen the outline form has extended two third the distance from an adjacent primary groove to the cusp tip
CWhen the operator judges that adequate cuspal strength (adequate dentin support) remains
DIf the reduction of cusp improves the accessibility and visibility for operator