Periodontics · single question
Which tooth is LEAST likely to be lost due to Periodontitis?
Show answer and explanation
Correct answer: B. Mandibular Canine (Inferior Canine)
The Mandibular Canine (B) is the tooth least likely to be lost due to periodontitis. The mandibular canine has the longest root of any tooth and a very favorable root-to-crown ratio. Its single, large root provides excellent bony support, and it is located in a region where bone loss is typically less severe.
• Mandibular 2nd Molars (A) are frequently lost in periodontitis — they have bifurcated roots, furcation involvement occurs early, and they are difficult to maintain with proper hygiene.
• Maxillary 1st Molars are the most commonly lost teeth due to periodontitis and caries combined.
• The key principle: single-rooted teeth with long roots (canines) resist bone loss better than multi-rooted teeth with furcations.
• Mandibular 2nd Molars (A) are frequently lost in periodontitis — they have bifurcated roots, furcation involvement occurs early, and they are difficult to maintain with proper hygiene.
• Maxillary 1st Molars are the most commonly lost teeth due to periodontitis and caries combined.
• The key principle: single-rooted teeth with long roots (canines) resist bone loss better than multi-rooted teeth with furcations.