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Angulated Screw-retained Crowns Following Immediate Implant Placement

NCT04160247 · Status: COMPLETED · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 40

Last updated 2021-01-25

No results posted yet for this study

Summary

There are two choices of restorations and implant abutments connection now: cemented and screw-retained.The excess cement, which would be difficult to completely remove, might lead to series of biological complications. The angulated screw channel (ASC) abutments, which recently introduced by Nobel Biocare , largely address the problem with visible screw access that may compromise esthetics. However, all of the present studies were clinical reports, thus the clinical efficacy of ASC abutments still needs the verification of evidence-based medicine with larger sample. Therefore, we designed a randomized controlled clinical trial study, aiming to verify the clinical efficacy of the ASC abutments by comparing screw-retained (with ASC abutments) single implant crowns with cemented ones in esthetic region.

Conditions

  • Tooth Diseases

Interventions

PROCEDURE

Immediate implant placement

Implants are placed in fresh socket

PROCEDURE

Angulated screw-retained crowns placement

To insert the restorations by angulated screw systems

PROCEDURE

Cemented crowns placement

To cement the restorations onto the implant abutment

Sponsors & Collaborators

  • Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2019-01-17
Primary Completion
2019-03-20
Completion
2020-03-20

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04160247 on ClinicalTrials.gov