NCT04481087

Brief Summary

The aim of this randomized, controlled, prospective clinical trial is to evaluate the performances of a universal adhesive in three different application modes, a self-etch adhesive and an etch\&rinse adhesive in restoration of non-caries cervical lesions. Thirty-four patients will receive restorations. Lesions will be divided into 5 groups according to adhesive systems and application modes: CU-SE: Clearfil Universal Bond Quick in self-etch mode, CU-SLE: Clearfil Universal Bond Quick in selective etch mode, CU-ER: Clearfil Universal Bond Quick in etch\&rinse mode, CSE: Clearfil SE Bond, TB: Tetric N-Bond. Restorations (Tetric N-Ceram composite) will be scored with regard to retention, marginal discoloration, marginal adaptation, recurrent caries and post operative sensitivity using modified USPHS criteria after 48 months. Two examiners who is not involved in the placement of restorations will conduct the evaluations. Descriptive statistics will be performed using Chi-square tests.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
34

participants targeted

Target at P25-P50 for not_applicable

Timeline
1mo left

Started Feb 2018

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress99%
Feb 2018Jun 2026

Study Start

First participant enrolled

February 10, 2018

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 10, 2018

Completed
2.2 years until next milestone

First Submitted

Initial submission to the registry

July 17, 2020

Completed
5 days until next milestone

First Posted

Study publicly available on registry

July 22, 2020

Completed
5.9 years until next milestone

Study Completion

Last participant's last visit for all outcomes

June 10, 2026

Expected
Last Updated

September 29, 2025

Status Verified

September 1, 2025

Enrollment Period

3 months

First QC Date

July 17, 2020

Last Update Submit

September 26, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Clinical performances of different adhesives

    Two year examinations according to USPHS criteria

    two years

Study Arms (5)

Clearfil Universal Bond Quick, self-etch mode (CU-SE)

EXPERIMENTAL
Device: Clearfil Universal Bond Quick

Clearfil Universal Bond Quick, selective etch mode (CU-SLE)

EXPERIMENTAL
Device: Clearfil Universal Bond Quick

Clearfil Universal Bond Quick, etch&rinse mode (CU-ER)

EXPERIMENTAL
Device: Clearfil Universal Bond Quick

Clearfil SE Bond (CSE)

EXPERIMENTAL
Device: Clearfil SE Bond

Tetric N-Bond (TB)

EXPERIMENTAL
Device: Tetric N-Bond

Interventions

Adhesive systems

Clearfil Universal Bond Quick, self-etch mode (CU-SE)

Adhesive systems

Clearfil SE Bond (CSE)

Adhesive systems

Tetric N-Bond (TB)

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • being 18 years or older,
  • having no medical or behavioral problems preventing then from attending review visits,
  • having at least 5 tooth with NCCLs
  • having antagonist teeth

You may not qualify if:

  • poor gingival health,
  • uncontrolled, rampant caries,
  • bruxism,
  • removable partial dentures,
  • xerostomia

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hacettepe University

Ankara, Turkey (Türkiye)

Location

MeSH Terms

Conditions

Tooth Wear

Condition Hierarchy (Ancestors)

Tooth DiseasesStomatognathic Diseases

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

July 17, 2020

First Posted

July 22, 2020

Study Start

February 10, 2018

Primary Completion

May 10, 2018

Study Completion (Estimated)

June 10, 2026

Last Updated

September 29, 2025

Record last verified: 2025-09

Locations