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Canine Eminence Landmark — NDEB AFK MCQ

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ModeratePain & Anxiety ControlCanine Eminence LandmarkNDEB AFK

The canine eminence on the alveolar bone overlying the maxillary canine root provides which anatomical landmark for maxillary infiltration anaesthesia?

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Correct answer: D — It identifies the position of the canine root apex for ASA nerve block infiltration

The canine eminence (jugum) is the bony prominence on the labial alveolar bone overlying the root of the maxillary canine. It serves as a palpation landmark for identifying the apex of the canine root during anterior superior alveolar (ASA) nerve block infiltration. The injection is placed in the mucosal fold above the apex, approximately at the mucogingival junction. The infraorbital foramen lies approximately 5-8 mm above the canine eminence.

Reference: Malamed – Handbook of Local Anesthesia, 7th ed., 2020