With further seating of the implant, a 5.5x5(4) mm abutment is used (Fig.4), which closes the access.  No suture is warranted.  An immediate provisional is fabricated for the patient's comfort and psychological effect.  In fact, the abutment cuff changes to 5 mm prior to temporarization.  There appears no bone loss <4 months postop (Fig.5).  The margin is prepped except mesial prior to impression.  Pulpitis develops at #4 due to DO caries 1 year 5 months post cementation (Fig.6 *).  The crown at #3 is removed for easy and conservative DO carious removal.  Then occlusal access is made for pulpotomy.  When RCT finishes, no crown will be made, but occlusal reduction is required.  Bone Expansion Alterative with Drilling Last Next Xin Wei, DDS, PhD, MS 1st edition 08/05/2019, last revision 09/08/2019