Table 3.

Contraindications to the placement of posterior composites taught in dental schools in 1997 and 2004 on which more than 50 percent of schools in each region agreed

1997 Europe2004 Ireland and UK1997 North America2004 North America
Unable to place rubber damUnable to place rubber damUnable to place rubber damUnable to place rubber dam
Allergy to composite materialsAllergy to composite materialsAllergy to composite materialsAllergy to composite materials
Replacement of large amalgamPoor cooperationReplacement of large amalgamReplacement of large amalgam
Poor enamelSubgingival marginsPoor enamelSubgingival margins
Parafunctional activityBuccolingual width of the occlusal portion is >2/3 of the intercuspal widthParafunctional activityBuccolingual width of the occlusal portion is >2/3 of the intercuspal width
Poor oral hygienePoor oral hygiene