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Clinical Evaluation of Dentin Replacement Materials in Posterior Composite Restorations

8. august 2026 opdateret af: Mohammed Abd El Ghany Mohammed, Tanta University
This randomized controlled clinical trial is designed to clinically evaluate and compare the performance of five dentin replacement materials used beneath posterior composite restorations.

Studieoversigt

Status

Tilmelding efter invitation

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Thirty patients ranging in age from 20 to 35 years will be enrolled into the study. This study will be designed as a randomized controlled clinical trial including patients requiring six Class I restorations. Participants will be randomly allocated into six groups according to the type of dentin replacement material used: Group I (Biodentin), Group II (Activa Bioactive), Group III (Glass ionomer cement), Group IV (Ever x posterior), and Group V (Flowable resin). Restorations will be placed following standardized cavity preparation and manufacturer instructions. Clinical evaluation will be performed at baseline and 6, 12, and 18 months using modified FDI criteria, assessing retention, marginal integrity, surface roughness, anatomical form, postoperative sensitivity, and secondary caries. Data will be collected and statistically analyzed

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

30

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Egypten
    • Tanta
      • Tanta, Tanta, Egypten, 31527
        • faculty of dentistry, Tanta university

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen

Tager imod sunde frivillige

Ja

Beskrivelse

Inclusion Criteria:

  • Patients who are medically able to undergo routine dental restorative treatment.
  • Patients willing and able to provide written informed consent.
  • Patients with adequate oral hygiene and periodontal health for participation in the study.
  • Patients requiring posterior Class I restorations

Exclusion Criteria:

  • Patients with systemic conditions that contraindicate routine dental treatment.
  • Patients unable or unwilling to provide informed consent.
  • Patients with poor compliance or inability to attend scheduled follow-up visits.
  • Teeth with clinical or radiographic evidence of irreversible pulpitis, pulp necrosis, or periapical pathology.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Dobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Biodentine
Participants will receive posterior Class I composite restorations incorporating Biodentine as the dentin replacement material according to the standardized clinical protocol and manufacturer's instructions.
Andet: Biodentine
Biodentine will be used as a dentin replacement material in standardized posterior Class I cavities before placement of the definitive composite restoration. The material will be applied according to the manufacturer's instructions
Eksperimentel: ACTIVA BioACTIVE
Participants will receive posterior Class I composite restorations incorporating ACTIVA BioACTIVE as the dentin replacement material according to the standardized clinical protocol and manufacturer's instructions.
Andet: ACTIVA BioACTIVE
ACTIVA BioACTIVE will be used as a dentin replacement material in standardized posterior Class I cavities before placement of the definitive composite restoration. The material will be applied according to the manufacturer's instructions.
Eksperimentel: Glass Ionomer Cement
Participants will receive posterior Class I composite restorations incorporating conventional glass ionomer cement as the dentin replacement material according to the standardized clinical protocol and manufacturer's instructions.
Andet: glass ionomer cement
Glass ionomer cement will be used as a dentin replacement material in standardized posterior Class I cavities before placement of the definitive composite restoration. The material will be applied according to the manufacturer's instructions.
Eksperimentel: everX Posterior
Participants will receive posterior Class I composite restorations incorporating everX Posterior as the dentin replacement material according to the standardized clinical protocol and manufacturer's instructions.
Andet: everX Posterior
everX Posterior will be used as a dentin replacement material in standardized posterior Class I cavities before placement of the definitive composite restoration. The material will be applied according to the manufacturer's instructions.
Eksperimentel: Flowable Resin
Participants will receive posterior Class I composite restorations incorporating flowable resin composite as the dentin replacement material according to the standardized clinical protocol and manufacturer's instructions
Andet: Flowable Resin Composite
Flowable resin composite will be used as a dentin replacement material in standardized posterior Class I cavities before placement of the definitive composite restoration. The material will be applied according to the manufacturer's instructions.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
marginal adaptation
Tidsramme: 18 months
Clinical evaluation of marginal adaptation was conducted in accordance with the World Dental Federation (FDI) criteria by two calibrated examiners at baseline and after 6, 12, and 18 months. Each restoration was assessed and categorized according to the degree of conformity with the established criteria as follows: score 1, clinically excellent; scores 2 and 3, clinically satisfactory; and scores 4 and 5, clinically inadequate. Scores of 1-3 were considered indicative of clinical success, whereas scores of 4 or 5 were considered indicative of failure. Visual assessment was performed under adequate illumination using a high-intensity light source and a dental magnifying loupe to facilitate accurate evaluation. For statistical analysis, the Friedman test was used to assess within-group changes in restoration outcomes across the different follow-up periods. The Kruskal-Wallis test was applied to compare restoration outcomes among the different groups at each corresponding follow-up.
18 months

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Tanta University

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

12. august 2025

Primær færdiggørelse (Anslået)

27. marts 2027

Studieafslutning (Anslået)

29. marts 2027

Datoer for studieregistrering

Først indsendt

8. august 2026

Først indsendt, der opfyldte QC-kriterier

8. august 2026

Først opslået (Faktiske)

13. august 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

13. august 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

8. august 2026

Sidst verificeret

1. august 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • Composite Restorations

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

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Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

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