Anatomy & Physiology Fundamentals Flashcards

Which nerve is most commonly at risk during posterior mandibular implant placement due to its course through the mandibular canal?

Answer: Inferior alveolar nerve

The inferior alveolar nerve runs through the mandibular canal and can be damaged if an implant is placed too close to or into the canal.

The mental foramen is most commonly located inferior to which tooth?

Answer: Second premolar

The mental foramen is typically found inferior and slightly distal to the apex of the mandibular second premolar.

Which type of bone is found predominantly in the cancellous (trabecular) region and is important for osseointegration?

Answer: Spongy bone

Spongy (cancellous/trabecular) bone contains marrow spaces with blood vessels that support early osseointegration through vascularization.

The Schneiderian membrane refers to which anatomical structure relevant to sinus lift procedures?

Answer: Mucosal lining of the maxillary sinus

The Schneiderian membrane is the mucoperiosteal lining of the maxillary sinus that must be carefully elevated during sinus augmentation procedures.

Which blood vessel supplies the majority of blood to the mandible and is relevant during implant surgery planning?

Answer: Inferior alveolar artery

The inferior alveolar artery accompanies the inferior alveolar nerve through the mandibular canal and is the primary blood supply to the mandibular teeth and bone.

Which classification of bone quality describes dense cortical bone with little cancellous bone, most commonly found in the anterior mandible?

Answer: Type I

Type I bone (Lekholm & Zarb classification) consists almost entirely of dense cortical bone and is most commonly found in the anterior mandible.

The pterygomandibular raphe is a fibrous band connecting the pterygoid hamulus to which mandibular landmark?

Answer: Retromolar pad

The pterygomandibular raphe stretches between the pterygoid hamulus superiorly and the retromolar pad region of the mandible inferiorly.