Australian Dental Council (ADC) Test 2026 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 1390

How many pulp horns are present in a typical mandibular deciduous second molar?

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A typical mandibular deciduous second molar usually has four pulp horns. These are anatomic features that correspond to the cusps of the tooth. The four pulp horns align with the two buccal cusps and the two lingual cusps, reflecting the tooth's occlusal anatomy and functional requirements. The pulp horns are extensions of the dental pulp chamber, which contains the nerves and blood vessels supplying the tooth.

Having four pulp horns ensures that the tooth can effectively respond to stimuli and maintain vitality through healthy vascular and nerve supply corresponding to its cusp anatomy. Knowledge of this characteristic is important for dental professionals when considering procedures like endodontics or when assessing the pulp health in deciduous teeth.

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