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Gingival Crevicular Fluid Bone Morphogenetic Protein - 2 Release Profile Following the Use of Perforated Membrane (MPM)

21. maj 2013 opdateret af: Ahmed Y Gamal, Al-Azhar University

Gingival Crevicular Fluid Bone Morphogenetic Protein - 2 Release Profile Following the Use of Modified Perforated Membrane Barriers in Localized Intrabony Defects (An in Vivo Study)

One of the most important elements suggested to be provided through membrane perforations to augment regeneration are cell released growth factors from the overlying periosteal and gingival cells. A direct correlation could exist between the number of such cells and their available released growth factors. To test this assumption, this study was designed to evaluate levels of bone morphogenetic protein-2 in gingival crevicular fluid (GCF) during the early stages of healing for sites treated by MPM compared to that of the occlusive barrier membranes.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

The subjects were recruited consecutively from the list of patients seeking care for periodontal problems at the Department of Periodontology of the Faculty of Dental Medicine, Al Azhar University, Cairo, Egypt, between March 2012 to December 2012. The criteria implemented for patient inclusion were: 1) no systemic diseases which could influence the outcome of the therapy; 2) good compliance with the plaque control instructions following initial therapy; 3) teeth involved were all vital with score 0 mobility ; 4) each subject contributed matched pairs of two or three walled intrabony interproximal defects in premolar or molar teeth 5) the selected 2- or 3-wall intrabony defect depth ranged from 3-5 mm as detected in diagnostic periapical radiographs; 6) selected pocket depth (PD) ≥ 6 mm and clinical attachment level (CAL) ≥ 5 mm at the site of endosseous defect four weeks following initial cause-related therapy 7) endosseous radiographic defect angle ≤55 and ≥15 8) availability for the follow-up and maintenance program; 9) absence of periodontal treatment for the previous year; 10) absence of systemic medication or antibiotic treatment for the previous 6 months; 11) absence of a smoking habit and 12) absence of occlusal interferences. Pregnant females were excluded from participating in the study. Patients were also excluded from the study if they presented with opened interproximal contact, or inadequate compliance with the oral hygiene maintenance schedule. The experimental protocol was approved by the Ethical Committee of El Azhar University (OMD - 45 - 2012, clinical trial registration number: Al Azhar University 22-31). Research procedures were explained to all patients and they agreed to participate in the study and signed the appropriate informed consent form of Al Azhar University.

Undersøgelsestype

Observationel

Tilmelding (Faktiske)

15

Kontakter og lokationer

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Studiesteder

  • Egypten
      • Cairo Governorate, Egypten, 1123
        • Al Azhar Universty

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

31 år til 51 år (Voksen)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Alle

Prøveudtagningsmetode

Sandsynlighedsprøve

Studiebefolkning

Fifteen non-smoking patients (8 males and 7 females) who were 31 to 51 years of age at the time of baseline examination (mean age 33.8 ± 6.1) with severe chronic periodontitis (Armitage 1999) participated in this prospective, randomized and blinded clinical trial. The subjects were recruited consecutively from the list of patients seeking care for periodontal problems at the Department of Periodontology of the Faculty of Dental Medicine, Al Azhar University, Cairo, Egypt, between March 2012 to December 2012. The experimental protocol was approved by the Ethical Committee of El Azhar University (OMD - 45 - 2012). Research procedures were explained to all patients and they agreed to participate in the study and signed the appropriate informed consent form of Al Azhar University.

Beskrivelse

Inclusion Criteria:

  1. no systemic diseases which could influence the outcome of the therapy;
  2. good compliance with the plaque control instructions following initial therapy;
  3. teeth involved were all vital with score 0 mobility ;
  4. each subject contributed matched pairs of two or three walled intrabony interproximal defects in premolar or molar teeth
  5. the selected 2- or 3-wall intrabony defect depth ranged from 3-5 mm as detected in diagnostic periapical radiographs;
  6. selected pocket depth (PD) ≥ 6 mm and clinical attachment level (CAL) ≥ 5 mm at the site of endosseous defect four weeks following initial cause-related therapy
  7. endosseous radiographic defect angle ≤55 and ≥15
  8. availability for the follow-up and maintenance program;
  9. absence of periodontal treatment for the previous year;
  10. absence of systemic medication or antibiotic treatment for the previous 6 months;
  11. absence of a smoking habit and
  12. absence of occlusal interferences.

Exclusion Criteria:

  • Pregnant females were excluded from participating in the study.
  • Patients were also excluded from the study if they presented with opened interproximal contact, or inadequate compliance with the oral hygiene maintenance schedule.

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Kohorter og interventioner

Gruppe / kohorte
Intervention / Behandling
perforated membrane group
perforated membrane group (G1- 15 sites)
Procedure: perforated membrane
perforated membrane that could give a chance for posetive contributionn of periosteal and gingival mesenchymal stem cells in periodontal regeneration
Andre navne:
  • collagen membranes
occlusive membrane group
occlusive collagen membrane that are tradetionally used in guided tissue regeneration , control occlusive group (G2-15 sites)
Procedure: G2
tradetional occlusive collagen membrane
Andre navne:
  • guided tissue membranes

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
gingival cervicular fluid BMP-2 level
Tidsramme: 30 days
Using capillary tube (5 µl), gingival cervicular fluid (GCF) samples were collected (Sueda et al, 1969) by a single examiner (MA) who was masked to the attribution of the sites to MPM or OM. Following the isolation and drying of the selected site with cotton rolls, a fisher brand disposable micropipettes €, placed intrasulculary at the mesiofacial line angle of the selected site to a maximum depth of 2 mm below the gingival margin. Micropipettes were left in place until 5ul of fluid was collected. Gingival cervicular fluid (GCF) samples were collected one day, 3, 7, 14, 21, and 30 days after therapy and diluted in saline solution (50 µl) for bone morphogenetic protein-2 level evaluation. Samples were labeled, carried in a dark container and kept at -80 C until used.
30 days

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
intrabony components (defect bony filling)
Tidsramme: 9 months
Clinical and radiographic measurements (pocket depth, attachement level, gingival index , plaque index, intrabony level) were reassessed at 3, 6, and 9 months after surgery.
9 months

Samarbejdspartnere og efterforskere

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

Sponsor

Al-Azhar University

Efterforskere

  • Ledende efterforsker: Ahmed Y Gamal, PhD, Al Azhar universty, faculty of dentistry, cairo, egypt
  • Studieleder: Mohamed M Aziz, BCH, al azhar universty, cairo, egypt
  • Studieleder: Mohamed M Helmy, MSD, Al Azhar Universty
  • Studiestol: Vencint J Iacono, PhD, Stony Brook Uiversty

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

1. marts 2012

Primær færdiggørelse (Faktiske)

1. maj 2012

Studieafslutning (Faktiske)

1. december 2012

Datoer for studieregistrering

Først indsendt

19. maj 2013

Først indsendt, der opfyldte QC-kriterier

21. maj 2013

Først opslået (Skøn)

22. maj 2013

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

22. maj 2013

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

21. maj 2013

Sidst verificeret

1. maj 2013

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • ahmedgamal

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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