Violation
Particulate hydroxyapatite, when placed subperiostially, 1. is highly biocompatible. 2. has a low incidence of secondary infection following surgery. 3. has a tendency to migrate following insertion. 4. induces bone formation throughout the implanted material.
All of the above.
(1) (2) (3)
(1) and (3)
(2) and (4)
(4) only