posted 01-25-100 11:25 AM ET (US)        

2. B
Age is the least likely because salivation is not directly related to age, except perhaps in the very old.

3. A
Plaque is the primary etiologic factor for perio. disease, and bleeding is an indication of active disease. Increased pocketing occurs as a result of poor oral hygiene. Plaque index and photos reveal presence of plaque on proximal surfaces. Bleeding points on the proximal surfaces (see charting) suggests pt is not effectively cleaning between teeth. Perio disease often begins interproximally in the col area.

4. D
Overbite is the vertical overlap of incisor teeth.

5. C
All responses contribute to longterm prognosis of #19 but poor cleansibility is best choice because inability to effectively clean a tooth will contribute to increased plaque accumulation and disease.

6. B
Root resorption is seen on the distal root.

7. C
The classic radiographic sign of occlusal trauma is a widened PDL space in response to constant stress placed upon the teeth during function.

8. A
Proxy brushes are ideal for exposed furcations.

9. B
It is necessary to address active disease first before an ortho consultation.