CClinicalTrials.gg
Status unknownNCT03834636Updated Feb 8, 2019

Impact of Patients Risk Factors on the Longevity of Aesthetic Restorations

A Phase 3 interventional study of Restorations with nanoparticulated composites and self etch adhesives and Restorations with nanoparticulated composites and total-etch adhesives in Dental Restorations Longevity, Dental Restoration Failure and Esthetics, Dental, sponsored by Federal University of Pelotas. Status unknown at 1 site in Brazil. Open to participants aged 9 Years to 70 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2019-02-08.

Sponsored by Federal University of Pelotas · Phase 3, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Feb 2019), so the status shown — last known as Active, not recruiting — may be out of date.

From the registry’s dates

  • Registered 7 years after the study started (first participant enrolled Jan 2012, registered Feb 2019).
Phase
Phase 3
Study type
Interventional
Enrollment
110
Allocation
Randomized
Ages
9 Years to 70 Years
Sex
All
01

Study summary

The objective of this double-blind randomized clinical trial is to evaluate the influence of caries risk, occlusal stress and missing teeth on anterior restorations over a 10 years follow up period. 300 teeth will be randomized according to two adhesive systems: Single Bond 2 and Single Bond Universal (3M ESPE); and two composite resins: nanoparticulated (Filtek ™ Z-350- 3M ESPE) and nanohybrid (IPS Empress Direct - Ivoclar Vivadent). The randomization will be stratified according to the risk of caries and cavity type. The primary outcomes will be longevity, annual failure rate (AFR) and the success of the restorations, and the secondary outcome will be causes for restorations' failure.

02

Conditions studied

  • Dental Restorations Longevity
  • Dental Restoration Failure
  • Esthetics, Dental
03

In context

Lead sponsor

Federal University of Pelotas is the lead sponsor of 52 studies on the registry; 4 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
9 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Patients with restorative needs in anterior teeth;
  • Patients able to understand and sign the informed consent form;
  • Patients willing to return to follow up.

Exclusion criteria

Exclusion Criteria:

  • Patients who had a need for Class III and Class IV restorations that did not involve at least 1/3 of the tooth;
  • Patients under orthodontic treatment;
  • Patients with a compromised general health condition, presenting a greater risk than ASA II, according to the ASA-PS (American Society of Anesthesiologists - Physical Status);
  • Patients who had no occlusal contact with an opposing tooth and/or crown;
  • Patient with absence of bilateral balanced occlusion;
  • Patient with deep caries lesions in close contact with the dental pulp and in need of expectant treatment or direct pulp capping;
  • Patients with post-retained need in anterior teeth.
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
110 participants (actual)

Study arms

  • Active comparator
    Nanoparticulated composite - self-etch

    Procedure: Restorations with nanoparticulated composites and self etch adhesives

  • Active comparator
    Nanoparticulated composite - total-etch

    Procedure: Restorations with nanoparticulated composites and total-etch adhesives

  • Active comparator
    Nanohybrid composite - self-etch

    Procedure: Restorations with nanohybrid composites and self etch adhesives

  • Active comparator
    Nanohybrid composite - total-etch

    Procedure: Restorations with nanohybrid composites and total-etch adhesives

Interventions

  • ProcedureRestorations with nanoparticulated composites and self etch adhesives

    The restorations will be placed according to the protocol developed for the care, following the guidelines of the manufacturers, with a self-etching dental adhesive (SingleBond Universal, 3M ESPE), selective enamel etching, and use of a nanoparticulated composite (Z350, 3M ESPE)

  • ProcedureRestorations with nanoparticulated composites and total-etch adhesives

    The restorations will be placed according to the protocol developed for the care, following the guidelines of the manufacturers, with a total-etching dental adhesive (SingleBond 2, 3M ESPE), and use of a nanoparticulated composite (Z350, 3M ESPE)

  • ProcedureRestorations with nanohybrid composites and self etch adhesives

    The restorations will be placed according to the protocol developed for the care, following the guidelines of the manufacturers, with a self-etching dental adhesive (SingleBond Universal, 3M ESPE), selective enamel etching, and use of a nanohybrid composite (IPS Empress Direct, Ivoclar Vivadent).

  • ProcedureRestorations with nanohybrid composites and total-etch adhesives

    The restorations will be placed according to the protocol developed for the care, following the guidelines of the manufacturers, with a total-etching dental adhesive (SingleBond 2, 3M ESPE), and use of a nanohybrid composite (IPS Empress Direct, Ivoclar Vivadent).

06

What researchers measure

Primary outcomes

  1. Survival of the restorations

    Survival of the restoration is defined as any case where the restoration remains functional in the mouth at the time of evaluation, regardless of need of small interventions, such as repair or refurbishment. The restorations were evaluated shortly after baseline and in prospective periods through a direct clinical inspection, with an explorer probe and a clinical mirror, according to the criteria for clinical evaluation of restorations proposed by the FDI (International Dental Federation) (Hickel et al., 2010), the risks of caries and occlusal stress were also evaluated again. Two trained and calibrated evaluators, unrelated to making the restorations, blinded to the type of material used, independently performed the clinical evaluations.

    Time frame: Changes in the dental restorations status compared to baseline will be assessed yearly up to 10 years.

  2. Success of the restorations

    Success of the restoration is defined as any case where the restoration remains functional in the mouth at the time of evaluation, without any need of new interventions, and attending the patients demands. The restorations were evaluated shortly after baseline and in prospective periods through a direct clinical inspection, with an explorer probe and a clinical mirror, according to the criteria for clinical evaluation of restorations proposed by the FDI (International Dental Federation) (Hickel et al., 2010), the risks of caries and occlusal stress were also evaluated again.

    Time frame: Changes in the dental restorations status compared to baseline will be assessed yearly up to 10 years.

Secondary outcomes

  1. Patient satisfaction with the treatment

    Patient satisfaction will be recorded with FDI criteria

    Time frame: Changes in the patient's satisfaction status compared to baseline will be assessed yearly up to 10 years.

07

Study locations

1 site
  • Federal Univeristy of Pelotas
    Pelotas, RS 96015080, Brazil
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 8, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03834636
Lead sponsor
Federal University of Pelotas
Responsible party
Maximiliano Sergio Cenci (Associate Professor, Principal Investigator, Federal University of Pelotas) — Principal investigator
First posted
Feb 8, 2019
Start date
Jan 10, 2012
Primary completion
Jan 10, 2022 (estimated)
Completion
Jan 10, 2022 (estimated)
Last update
Feb 8, 2019

Study contacts

Maximiliano S Cenci
principal investigator · Graduate Program in Dentistry - Federal University of Pelotas

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Feb 2019. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion