Teeth that are least affected by periodontal disease are:

 # Teeth that are least affected by periodontal disease are: 

A. Lower first molars and upper anteriors 

B. Lower premolars and upper canines 

C. Lower first molars and upper incisors and premolars 

D. Lower centrals, laterals and upper molars 

The correct answer is B. Lower premolars and upper canines.

Teeth least affected by periodontitis are upper canine and lower second premolar. Most affected are lower molars. The teeth that are moderately affected by periodontal disease are all the upper molars; the upper centrals. laterals, and premolars; and the lower canines. 

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