Denne side blev automatisk oversat, og nøjagtigheden af ​​oversættelsen er ikke garanteret. Der henvises til engelsk version for en kildetekst.

Biological, Radiographic and Clinical Evaluation of Various Inter-Visit Root Canal Dressings in Retreatment Cases (RCT)

10. juni 2026 opdateret af: Ain Shams University

Biological, Radiographic and Clinical Evaluation of Various Inter-Visit Root Canal Dressings in Retreatment Cases: A Randomized Controlled Clinical Trial

The aim of this clinical trial is to evaluate anti-inflammatory effect of various intracanal medications:

  1. Calcium Hydroxide Slurry mixed with 3% Sodium Hypochlorite
  2. Calcium Silicate
  3. Calcium Hydroxide

In retreatment cases in terms of:

  1. Biological Evaluation: Biomarker (IL 1B)
  2. Radiographic Evaluation: CBCT
  3. Clinical Evaluation: Pain Score (VAS)

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Sixty patients presenting with failed root canal treated lower first molars with periapical lesion were included in this randomized controlled single-center clinical superiority trial with two parallel arms and randomly allocated to 3 equal groups (n = 20) according to the type of ICM used. Patients were randomly allocated to receive either Ca(OH)2 slurry that was prepared from pure Ca(OH)2 powder mixed with 3% NaOCl, calcium-silicate (Bio-C Temp) or calcium hydroxide (CH) as ICM. Teeth were instrumented using a rotary file system (M3 pro Gold) and irrigated with 3% NaOCl. Subsequently, the root canals were dressed with a Ca(OH)2 + NaOCl or calcium silicate (test groups) or Ca(OH)2 (control group). Periapical fluid samples were collected after accessing the root canal in the first visit and after the root canal dressing removal in the second visit 2 weeks later using paper point. Samples were transferred to the microbiology lab immediately and levels of pro-inflammatory marker (IL1B) were measured using a specific enzyme-linked immunosorbent assay (ELISA) immediately after the second visit to test the reduction in inflammatory marker level after intracanal medication usage. Also, preoperative and 12 months-postoperative radiographic evaluation by CBCT were obtained to measure volumetric reduction in lesion size using segmentation technique. And patients rated their pain pre-operatively and then after 6, 12, 24, 48, 72 h and 7 days using the VAS score. Clinical and radiographic follow-up evaluations were scheduled for 1 week, 1 month, 6 months and 12 months by examining the patient clinically using palpation and percussion tests and pain questionnaire and periapical digital radiographs to compare reduction in lesion size.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

60

Fase

  • Fase 1

Kontakter og lokationer

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

Studiekontakt

Studiesteder

  • Egypten
      • Cairo, Egypten
        • Rekruttering
        • Ain Shams University
        • Kontakt:
          • Ain Shams University
          • Telefonnummer: 00201000397491

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:

  1. Age: 21-45 years.
  2. Medically free patients. (ASA Class 1)
  3. Gender: males and females
  4. Patients who are cooperative at operation and in attendance at scheduled follow-up visits.
  5. Restorable root canal treated permanent lower first molars with periapical lesions.
  6. Small (<5 mm) or medium periapical lesion size (5-10 mm)

Exclusion Criteria:

  1. Patients with a history of allergic reactions to any of the study materials.
  2. Teeth that become non-restorable after complete caries excavation.
  3. Teeth that have mobility or deep periodontal pockets.
  4. Teeth with internal or external resorption.

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: Enkelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Calcium Silicate Intracanal Medication
Calcium silicate-based bioceramic Intracanal Medication as Bio C-Temp (Angelus)
Medicin: Calcium Silicate Intracanal Medication
Calcium silicate-based bioceramic materials have gained attention for their bioactivity and biocompatibility, acting through hydration with calcium hydroxide release followed by hydroxyapatite formation that promotes healing. Bio-C Temp is an example, characterized by high calcium ion release, alkaline pH, adequate radiopacity, and good biocompatibility.
Eksperimentel: Calcium Hydroxide Slurry mixed with Sodium Hypochlorite
Calcium Hydroxide slurry mixed with 3% Sodium Hypochlorite
Medicin: Calcium Hydroxide Slurry mixed with Sodium Hypochlorite Intracanal Medication
Combining calcium hydroxide with sodium hypochlorite (NaOCl) has been proposed. NaOCl provides rapid and potent antimicrobial and tissue-dissolving effects, while Ca(OH)₂ offers prolonged action. Both agents retain their properties when combined, and this combination may produce a synergistic effect that enhances disinfection and reduces chair time in two-visit treatment protocols.
Aktiv komparator: Calcium Hydroxide
Calcium Hydroxide Intracanal Medication (Control Group)
Medicin: Calcium Hydroxide (Ca(OH)2) Intracanal Medication
Calcium hydroxide ICM being the most widely used due to its high alkalinity, antimicrobial properties, endotoxin neutralization, and ability to reduce periapical inflammation. It is applied as an aqueous mixture or polyethylene glycol-based paste and provides a slow but sustained antimicrobial effect. Despite their benefits, Ca(OH)₂ medicaments re limited by their solubility, susceptibility to tissue fluids, potential to weaken tooth structure over time, and reduced effectiveness against resistant microorganisms such as Candida Albicans and Enterococcus Faecalis.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Biological Evaluation of inflammatory marker (IL-1B)
Tidsramme: 1st sample is collected in the first visit after root canal filling removal while 2nd sample is collected after intracanal medication removal in the second visit. Both visits are 14 days apart.
IL-1B collected by periapical fluid sample using paper points and measured using ELISA.
1st sample is collected in the first visit after root canal filling removal while 2nd sample is collected after intracanal medication removal in the second visit. Both visits are 14 days apart.

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Radiographic Evaluation using limited FOV CBCT
Tidsramme: 1 year between pre- and post-operative CBCT scans.
Pre-operative and post-operative limited FOV CBCT scans are taken to compare volumetric reduction in periapical lesion size.
1 year between pre- and post-operative CBCT scans.

Andre resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Clinical Evaluation using Pain Score (Visual Analogue Scale)
Tidsramme: Pre-operative and Post-operative at 6, 24, 48, 72 hours and 1 week intervals
evaluation of pain score using Visual Analogue Scale on a scale of 0-10 with 0 representing no pain and 10 representing the most severe pain (subjective)
Pre-operative and Post-operative at 6, 24, 48, 72 hours and 1 week intervals

Samarbejdspartnere og efterforskere

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

Sponsor

Ain Shams University

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)

1. juni 2026

Primær færdiggørelse (Anslået)

1. juni 2027

Studieafslutning (Anslået)

1. august 2027

Datoer for studieregistrering

Først indsendt

7. juni 2026

Først indsendt, der opfyldte QC-kriterier

7. juni 2026

Først opslået (Faktiske)

11. juni 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

12. juni 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

10. juni 2026

Sidst verificeret

1. juni 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 1740

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

UBESLUTET

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

produkt fremstillet i og eksporteret fra U.S.A.

Ingen

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 .

Kliniske forsøg med Interventionsstudier

Kliniske forsøg med Calcium Silicate Intracanal Medication

Søg i lignende forsøg

Sponsorer og samarbejdspartnere

Medicinske tilstande

Narkotikainterventioner

CROs by country

CROs in Philippines

Betingelser

Sjældne sygdomme

Narkotikainterventioner

Kosttilskud

Sponsor / samarbejdspartnere

Placeringer

Abonner