When patient records can be eliminated, they must be completely destroyed. This is accomplished by _______________. 

Angina pectoris occurs when:

A. a coronary artery is totally occluded by plaque. B. myocardial oxygen demand exceeds the supply. C. one or more coronary arteries suddenly spasm. D. myocardial oxygen supply exceeds the demand.

Intrusion of primary teeth frequently involves extensive treatment. Permanent teeth form close to the primary tooth and can be easily injured with primary tooth intrusion

A) Both statements are true. B) Both statements are false. C) First statement is true, second statement is false. D) First statement is false, second statement is true.