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Retrospective study about clinical influence of angulated screw channel abutment and Screw-Cement Retained Prosthesis on marginal bone in anterior aesthetic area

Retrospective study about clinical influence of angulated screw channel abutment and Screw-Cement Retained Prosthesis on marginal bone in anterior aesthetic area

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2100042197
Enrollment
Unknown
Registered
2021-01-15
Start date
2021-01-31
Completion date
Unknown
Last updated
2021-04-12

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

Conditions

Dentition Defect

Interventions

ASC abutment group:placement of ASC abutment

Sponsors

The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 80 Years

Inclusion criteria

Inclusion criteria: 1.Patient aged >=18 years and sign the informed consent; 2.Patient recieve treatment involving the placement of a single Nobel Biocare implant; 3.Patient recieve treatment involving the SCRP abutment or Nobel ASC abutment at secondary operation; 4.a follow-up period of 1 year or more.

Exclusion criteria

Exclusion criteria: 1.Subjected to irradiation in the head and neck area within two years prior to treatment; 2.treated or under treatment with intravenous amino-bisphosphonates; 3.uncontrolled diabetes(HbA1c>8.0% or FBG>150mg/dl); 4.pregnant or nursing; 5.psychiatric problems; 6.heavy smoking(>20 cigarettes/day).

Design outcomes

Primary

MeasureTime frame
implants survival rate;prosthetics survival rate;calculus index;width of Keratinized gingiva;modified plaque index;modified gingival bleeding index;peri-implant probing pocket depth;PES;WES;

Countries

China

Contacts

Public ContactHe Fuming

The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine

hfm@zju.edu.cn+86 13516817697

Outcome results

None listed

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