Implants · single question
Placing an implant at #19, which structure must you most carefully avoid?
Show answer and explanation
Correct answer: C. Inferior alveolar nerve / sublingual (lingual) space
- A. The ramus is posterior and not the structure endangered at the #19 site.
- B. The pterygopalatine tuberosity is a maxillary landmark, irrelevant to a mandibular molar.
- C. Correct. At mandibular molar sites the inferior alveolar canal/nerve and the lingual concavity (sublingual space) are the critical structures to avoid (perforation can damage the nerve or cause floor-of-mouth bleeding).
- D. The maxillary sinus is in the upper jaw, not relevant to #19.