Oral Surgery · single question
When placing a mandibular implant, damage to which structure is most life-threatening?
Show answer and explanation
Correct answer: A. Sublingual artery
✓ A) Sublingual artery is correct.
The sublingual artery (branch of the lingual artery) runs in the floor of the mouth. Perforation of the lingual cortical plate during anterior mandibular implant placement can lacerate this artery, causing rapid hematoma formation in the floor of the mouth and sublingual space. This can elevate the tongue, obstruct the airway, and cause asphyxiation — a life-threatening emergency. This complication necessitates immediate airway management and surgical intervention.
The sublingual artery (branch of the lingual artery) runs in the floor of the mouth. Perforation of the lingual cortical plate during anterior mandibular implant placement can lacerate this artery, causing rapid hematoma formation in the floor of the mouth and sublingual space. This can elevate the tongue, obstruct the airway, and cause asphyxiation — a life-threatening emergency. This complication necessitates immediate airway management and surgical intervention.