Skip to content

36-Months Clinical Evaluation of Preheated and Room Temperature Resin Composite

36-Months Clinical Evaluation of Preheated Resin Composite

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04679220
Enrollment
35
Registered
2020-12-22
Start date
2017-10-01
Completion date
2020-06-30
Last updated
2020-12-22

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

Conditions

Dental Leakage

Keywords

Resin Composite, Pain, Randomized Clinical Trial, Operative Dentistry, Preheating

Brief summary

Summary The aim of this study was to evaluate the effect of preheating resin composite (RC) on clinical performance of class I restorations in a period of 3-years using a split-mouth double-blinded randomized design.

Detailed description

The description of the experimental design followed the Consolidated Standards of Reporting Trials (CONSORT) statement. The present study was a double-blinded (patients and examiner) randomized clinical trial anticipating the split mouth design. Thirty-five adult patients seeking dental treatment in Operative Department clinic at Faculty of Dentistry, University of Mansoura were enrolled in the current study with a total of 70 Class I restorations. No advertisement was made for participant recruitment, forming a sample of convenience. Each patient much sign a consent form before participating in the current study. The study was conducted from October 2017 to June 2020 as a part of Doctoral dissertation. Mansoura University institution's ethics committee approved the form and protocol before conducting the study. The sample size was calculated based on the clinical success rate (100% retention rate at 3 years) of posterior class I restorations restored with nanofilled composite observed in a previous study.28 According to several parameters including a significance level of 5%, the power of the test was calculated to be 80%, and equivalent limit of 15%. Upon these data, a sample size of 30 subjects was appropriate. Allowing for a 20% drop-out, sample size was set totalizing 35 subjects.

Interventions

PROCEDUREPreheating

For preheating RC prior to placement, a device called Therma-flo TM RC warming kit (Vista, Wisconsin, USA) was used according to manufacturer's instructions to preheat resin composites

Sponsors

Mansoura University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Intervention model description

One side of the mouth received preheated composite however in the other side the composite was placed in non-heated state following the manufacturer instructions.

Eligibility

Sex/Gender
ALL
Age
20 Years to 30 Years
Healthy volunteers
Yes

Inclusion criteria

* Patients with primary caries involving occlusal surface only with ICDAS 2 and 3 * Patients with cavities no more than one-third of the intercuspal distance * Patients must have a good oral hygiene; * Patients with tooth gives positive response to testing with an electric pulp tester * Patients with normal and full occlusion, * Patients with opposing teeth should be natural with no restorations.

Exclusion criteria

* High caries risk patients with extremely poor oral hygiene, * Patients involved in orthodontic treatment or periodontal surgery, * Patients with periodontally involved teeth (chronic periodontitis) * Patients with abutments should be excluded. * Patients with heavy bruxism habits and clenching

Design outcomes

Primary

MeasureTime frameDescription
Percentage % of patients with marginal staining3 years after restoration procedurePercentage of marginal staining in patients was clinically assessed using World Dental Federation FDI parameters using a scale from 1 to 5 scores (clinically very good, clinically good, clinically satisfactory, clinically unsatisfactory and clinically poor)

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026