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Randomized Controlled Clinical Trial on the Influence of Ultra-Smooth Abutments vs. Conventional Abutments on Peri-Implant Tissues

Randomized Controlled Clinical Trial on the Influence of Ultra-Smooth Abutments vs. Conventional Abutments on Peri-Implant Tissues

Status
Active, not recruiting
Phases
Phase 4
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2600129207
Enrollment
Unknown
Registered
2026-08-01
Start date
2026-08-01
Completion date
Unknown
Last updated
2026-08-03

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

Conditions

Partial edentulism

Interventions

Experimental group:Ultra-Smooth Abutments
Control group:Conventional Abutments

Sponsors

Hospital of Stomatology, SunYat-sen University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 75 Years

Inclusion criteria

Inclusion criteria: 1.Aged over 18 and under 75 years old, no gender restriction; 2.Patients with partial edentulism requiring implant-supported prostheses; 3.Participants who are willing and able to provide written informed consent, adhere to the study protocol, and attend scheduled follow-up visits.

Exclusion criteria

Exclusion criteria: 1.Patients with local or systemic diseases that preclude tolerance to implant surgery, or conditions compromising osseointegration of implants, including uncontrolled diabetes mellitus (glycated hemoglobin > 7%), severe cardiovascular diseases (e.g., unstable angina, uncontrolled hypertension), uncontrolled hyperthyroidism or hypothyroidism, hematological disorders, long-term use of medications interfering with bone metabolism, and a history of local radiotherapy; 2.Heavy smoking, defined as >=10 cigarettes per day; 3.Pregnancy.

Design outcomes

Primary

MeasureTime frame
Peri-implant buccal soft tissue recession;

Secondary

MeasureTime frame
Marginal bone level (MBL) change;soft tissue Pink Esthetic Score (PES);Changes in papilla position;Bleeding Index (BI);modified Plaque Index (mPI);probe depth (PD);Implant survival rate;

Countries

China

Contacts

Public ContactYu Xiaolin

Hospital of Stomatology, SunYat-sen University

xlfish15@163.com+86 20 83862537

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Aug 10, 2026