NCT06346769

Brief Summary

This study aimed to evaluate the 12-month clinical performance of direct composite restorations by placing polyethylene fibers in different directions in endodontically treated posterior teeth. In this clinical study, Clearfil SE Bond (Kuraray/Japan) adhesive system, G-aenial Universal Injectable (GC/Tokyo, Japan), G-aenial A'chord (GC/Tokyo, Japan) composites, and polyethylene fiber (Ribbond, USA) were used. In the restoration of the teeth included in the study, polyethylene fiber was placed in different directions according to the amount of remaining tooth tissue and cavity preparation. The restorations were divided into three groups according to the direction of fiber placement ('O' shape, mesiodistal I shape, buccolingual I shape) (n=12). Restorations were evaluated according to modified USPHS criteria in 1st week and 6th months from the placement date. The Chi-square test was used for statistical analysis of the difference between the groups, and the Cochran Q test was used for the significance of the difference between time-dependent changes within each group (p\<0.05).

Trial Health

87
On Track

Trial Health Score

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

Enrollment
68

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jan 2024

Geographic Reach
1 country

2 active sites

Status
completed

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 Start

First participant enrolled

January 1, 2024

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

March 29, 2024

Completed
6 days until next milestone

First Posted

Study publicly available on registry

April 4, 2024

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 15, 2024

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

April 15, 2025

Completed
Last Updated

April 27, 2025

Status Verified

April 1, 2025

Enrollment Period

10 months

First QC Date

March 29, 2024

Last Update Submit

April 25, 2025

Conditions

Outcome Measures

Primary Outcomes (7)

  • Retention

    No loss of restorative material

    Seventh day, sixth month, twelfth month

  • Color match

    The restoration matches the adjacent tooth structure in color and translucency

    Seventh day, sixth month, twelfth month

  • Marginal Discoloration

    There is no discoloration anywhere on the margin between the restoration and the tooth structure

    Seventh day, sixth month, twelfth month

  • Marginal adaptation

    There is no visible evidence of a crevice along the margin into which the explorer will penetrate

    Seventh day, sixth month, twelfth month

  • Secondary caries

    No evidence of secondary caries

    Seventh day, sixth month, twelfth month

  • Surface texture

    The surface of the restoration does not have any defects

    Seventh day, sixth month, twelfth month

  • Anatomical form

    The restoration is continuous with the existing anatomic form

    Seventh day, sixth month, twelfth month

Study Arms (3)

'O' shape polyethylene fiber

EXPERIMENTAL
Other: Polyethylene Fiber

mesiodistal I shape polyethylene fiber

EXPERIMENTAL
Other: Polyethylene Fiber

buccolingual I shape polyethylene fiber

EXPERIMENTAL
Other: Polyethylene Fiber

Interventions

In the restoration of the endodontically treated posterior teeth, polyethylene fiber was placed in different directions ('O' shape, mesiodistal I shape, buccolingual I shape) according to the amount of remaining tooth tissue and cavity preparation.

'O' shape polyethylene fiberbuccolingual I shape polyethylene fibermesiodistal I shape polyethylene fiber

Eligibility Criteria

Age18 Years - 50 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • A patient presenting with;
  • over 18 years of age
  • a normal periodontal status and good general health
  • endodontically treated premolar and molar teeth
  • teeth in contact with the opposing tooth and subjected to normal occlusal forces
  • attend follow-up appointments

You may not qualify if:

  • poor oral hygiene status
  • those with severe or chronic periodontitis
  • absence of adjacent and antagonist teeth
  • potential behavioral problems (e.g. bruxism)
  • allergy to any product used in the study
  • systemically unhealthy
  • pregnant and lactating women

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Selcuk University, Faculty of Dentistry, Restorative Dentistry Department

Konya, Turkey (Türkiye)

Location

Selcuk University, Faculty of Dentistry

Konya, Turkey (Türkiye)

Location

MeSH Terms

Conditions

Tooth, Nonvital

Condition Hierarchy (Ancestors)

Dental Pulp DiseasesTooth DiseasesStomatognathic Diseases

Study Officials

  • MERVE GÜRSES

    Selcuk University, Faculty of Dentistry

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Proffesor

Study Record Dates

First Submitted

March 29, 2024

First Posted

April 4, 2024

Study Start

January 1, 2024

Primary Completion

October 15, 2024

Study Completion

April 15, 2025

Last Updated

April 27, 2025

Record last verified: 2025-04

Data Sharing

IPD Sharing
Will not share

Locations