The incisive canal (nasopalatine canal) is a bony channel in the anterior midline hard palate connecting the floor of the nasal cavity to the oral cavity through the incisive foramen. It transmits the nasopalatine nerve (CN V2 branch) and the nasopalatine vessels. A nasopalatine cyst (incisive canal cyst) developing within this canal is the most common non-odontogenic cyst of the jaws.
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| Landmarks |
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| Ossification | Lies in the line of fusion of the primary palate (premaxilla) and the secondary palate, which ossify in membrane during fetal life. |
The incisive canal is relevant in anterior maxillary implant placement where the canal limits available bone width in the midline. CBCT imaging maps the canal's diameter and position before implant planning. Nasopalatine cysts arising within the canal produce an ovoid radiolucency between the upper central incisors (the defining feature distinguishing them from the normal incisive foramen). Nasopalatine block anaesthesia is achieved by injection into the incisive foramen for palatal soft tissue anaesthesia of the anterior six teeth.
A developmental cyst arising from epithelial remnants in the incisive canal produces a painless palatal swelling with ovoid midline radiolucency on periapical radiograph between vital upper central incisors, managed by surgical enucleation through a palatal flap with low recurrence rates.
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