The answer: 3, 2 ,1, 4.
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Start with: 3) plaque; then, 2) enamel decay; then, 1) dentin decay;
then, 4) pulp decay.
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This will help to insure that these laws are not broken by any members of the team, therefore avoiding the consequences and providing the safest possible outcome for the patient
It is a passageway for urine and semen.
Id go with A because the avg for 15 year olds is about 72ish to 100ish.