180
Participants
Start Date
September 1, 2023
Primary Completion Date
December 1, 2029
Study Completion Date
December 1, 2029
On1 two-stage abutment and one-stage abutment
the On1 two-stage abutment has a smooth collar with a height of 1.75-2.5mm, and the Nobel implants have a smooth neck design ranging from 0-0.75mm to protect the connective tissue around the implant.
The Stomatologic Hospital, School of Medicine, Zhejiang University, Hangzhou
Yi Zhou
OTHER