ADA NBDE National Board Dental Part II

Answer: A - Increased potential for periodontal disease is from food impaction and the texture of the tooth surface. Food impaction is often caused by overlapping, malposed, or exaggerated tooth space. A diet in soft or sticky foods can exacerbate food impaction. The texture of the tooth’s surface can be from smooth to rough. Teeth with a rough surface retain food particles and provide crevices for bacteria pooling that increase periodontal disease potential.