Preparation for amalgam restorations

What is your favorite ice cream flavor?

• Chocolate

• Vanilla

• Strawberry

• Other

What is the first principle of cavity preparation?

• Retention form

• Convenience form

• Outline form

• Resistance form

Which principle means to be able to withstand the stresses of masticatory forces without fracture ?

• Retention form

• Convenience form

• Outline form

• Resistance form

Which principle means to be able to facilitate and provide adequate visibility and accessibility during preparation and restoration ?

• Retention form

• Convenience form

• Outline form

• Resistance form

Which principle means to be able to resist displacement or removal of the restoration?

• Retention form

• Convenience form

• Outline form

• Resistance form