Oral Surgery · single question

When placing an implant at tooth #19 (mandibular first molar), most important anatomical structure to avoid?

Mandibular ramus
Sublingual space
Inferior alveolar nerve canal
Mental foramen

Show answer and explanation

Correct answer: C. Inferior alveolar nerve canal

IAN canal runs through posterior mandible. MINIMUM 2mm clearance above IAN required when placing implant at #19. Mental foramen = concern for premolar implants. Sublingual space = anterior mandible concern.

Practice Oral Surgery questions Oral Surgery study notes

More Oral Surgery practice questions

A young child sustains a fractured mandibular condyle. What is the principal long-term concern?
Which landmark is used as the injection site reference for the inferior alveolar nerve block?
A patient with a history of head and neck radiation presents for dental treatment. What is the BEST next step?
A patient develops a dry socket (alveolar osteitis) after an extraction. Which combination most increased the risk?
To extract the upper right third molar (#1), which nerve blocks must be given?
A panoramic radiograph shows an impacted third molar causing resorption of the distal root of the adjacent second…