What factor decreases the effectiveness of local anesthesia when tissues are inflamed?
A) An increase in the pH of surrounding tissues
B) A decrease in the pH of surrounding tissues
C) An increases in the number of base molecules
D) A decrease in the number of H+ ions available to form base molecules
B
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An abnormal ringing in the ears is called ________.
Fill in the blank(s) with the appropriate word(s).
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Answer the following statement true (T) or false (F)