In alternating or contrast applications, the hot compresses cause ________ of blood vessels, and the cold compresses cause ________ of blood vessels

Which of the following statements is true comparing subgingival implant microflora versus natural healthy teeth?

A) They are similar. B) They are different. C) Subgingival microflora is more complex. D) Subgingival microflora is less complex.

When a person has difficulty hearing some conversational speech, he is said to have which of the following types of hearing loss?

A) Mild B) Moderate C) Mild to moderate D) Severe