Implants · single question
When placing a dental implant in the MAXILLA, which of the following represents the LEAST risk compared to mandibular implant placement?
Show answer and explanation
Correct answer: C. Proximity to the maxillary sinus
- A. The lingual undercut of the mandible (lingual concavity below the mylohyoid) is a mandibular surgical concern — perforation can cause hemorrhage into the floor of mouth. Not a maxillary concern.
- B. Proximity to the inferior alveolar nerve is a MANDIBULAR concern — it runs through the mandibular canal and is at risk with lower posterior implants. This is a mandibular, not maxillary, risk.
- C. CORRECT. The inferior alveolar nerve, mandibular foramen, and lingual undercut are all MANDIBULAR anatomical concerns — they are NOT relevant to MAXILLARY implant placement. When considering maxillary implant risks, the maxillary sinus is the primary anatomical concern. The question asks what is NOT a risk for the superior (maxillary) jaw — mandibular-specific structures are not at risk when placing in the maxilla.
- D. The mandibular foramen (entry point of the inferior alveolar nerve) is a mandibular anatomical landmark — not relevant to maxillary implants.