To specify the quadrant and arch in Palmer's Notation, the tooth number is written within a:

All nonsterile surfaces are considered potentially contaminated with ________ microorganisms

A. strike-through contamination B. pathogenic

Subgingival calculus derives their mineral from which of the following that is found in the sulcus and periodontal pocket

A) Sulcular epithelium B) Mucogingival fluid C) Inflammatory exudate D) Endotoxins