Gingiva becomes inflamed at #31 when a splinted provisional is being worn to intrude the opposing supraerupted teeth; bone resorption remains severe in the previous distal socket and the mesial necrotic area (Fig.13 S, N). 

Hard Bone 2 Last Next Xin Wei, DDS, PhD, MS 1st edition 05/04/2019, last revision 05/20/2019