The bone is narrow apical to the tooth #5 (Fig.7), which may be the reason for the severe bone loss at #6 and 7 after extraction. Either a 2- (Fig.10) or 1- (Fig.11) piece implant will be placed. Prepare angled 1-piece ones.
Xin Wei, DDS, PhD, MS 1st edition 05/28/2018, last revision 07/20/2018