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Evaluation of feasibility of Astra 20 degree UniAbutment used for 3-unit fixed partial dentures supported by two implants

Evaluation of feasibility of Astra 20 degree UniAbutment used for 3-unit fixed partial dentures supported by two implants

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR1900027736
Enrollment
Unknown
Registered
2019-11-24
Start date
2019-12-23
Completion date
Unknown
Last updated
2019-11-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

partial edentulism

Interventions

1:Astra 20 degree Uni abutment used for 3-unit fixed partial dentures through conventional workflow
2:Astra 20 degree Uni abutment used for 3-unit fixed partial dentures through digital workflow

Sponsors

Peking University School and Hospital of Stomatology
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: Partial edentulism patients who have 3 adjacent molar teeth missing chose to accept the implant supported fixed partial dentures; They are in good general health and have enough prosthetic space, at least 5.5 mm from the level of the soft tissues to the cusp of the antagonist molar; Sign inform consent form ang regular follow up.

Exclusion criteria

Exclusion criteria: Uncontrolled diabetes, hemophilia, metabolic bone disorder, radiation treatment to the head or neck region, current chemotherapy and pregnancy, bruxism.

Design outcomes

Primary

MeasureTime frame
bridge screw loosening or bridge screw fracture;???????;patient satisfaction;Success and survival rate;Mechanical complications;Soft-tissue variables;—

Countries

China

Contacts

Public ContactPan Shaoxia

Department of Prosthodontics, Peking University School and Hospital of Stomatology

panshaoxia@vip.163.com+86 13011110951

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026