Dentition defect
Conditions
Interventions
External Narrow Diameter Implant group:None
Internal Narrow Diameter Implant Group:None
Sponsors
The Fourth Affiliated Hospital of Nanchang University
Eligibility
Sex/Gender
All
Age
20 Years to No maximum
Inclusion criteria
Inclusion criteria: 1.age >=20 years; 2.one or more missing teeth in the posterior region and placement of a pure Mohs taper connection implant; 3.implant diameter of 3.5 mm; 4.adequate alveolar bone height and width of 4.5 mm to 6 mm; 5.No need for bone augmentation surgery and maxillary sinus lift;
Exclusion criteria
Exclusion criteria: 1?the presence of acute inflammation at the implant site; 2?patients with uncontrolled periodontal disease, bone metabolic disorders, and other conditions that affect bone healing; 3?patients with severe nocturnal grinding symptoms; 4?heavy smokers, with >10 cigarettes/day; 5?Image film lack of those who can not be measured;
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Peri-implant buccal lateral bone width and height;Implant retention rate;Bone resorption at the implant margin; | — |
Secondary
| Measure | Time frame |
|---|---|
| Abutment loosening and shedding rate; | — |
Countries
China
Contacts
Public ContactWei Hongwu
The Fourth Affiliated Hospital of Nanchang University
Outcome results
None listed