Question

Which of the following is an accessory cusp commonly found on a mandibular molar?

• A. Cusp of Carabelli
• B. Metacone
• C. Parastylid
• D. Protostylid

Hint:

Maxillary molar → Cusp of Carabelli
Mandibular molar → Protostylid.

Answer 1

The Correct Option is D

Step 1: Understanding Accessory Cusps.
Accessory cusps are additional cuspal structures that may appear on certain teethThey are anatomical variations and are important in dental morphology and anthropology
Step 2: Mandibular Molar Features.
The protostylid is an accessory cusp or enamel projection found on the buccal surface of mandibular molars, especially the first molarIt is considered a common morphological trait in mandibular molars
Step 3: Excluding Other Options.
Cusp of Carabelli is an accessory cusp seen on the mesiopalatal cusp of maxillary first molars
Metacone is a normal cusp of maxillary molars, not an accessory cusp
Parastylid is a rare variation but not as commonly recognized as protostylid on mandibular molars
Step 4: Conclusion.
Since protostylid is the accessory cusp commonly associated with mandibular molars, the correct answer is Protostylid