Denne siden ble automatisk oversatt og nøyaktigheten av oversettelsen er ikke garantert. Vennligst referer til engelsk versjon for en kildetekst.

Evaluation of the Effectiveness of Odontogenic Grafts Obtained From Human Teeth on Bone Formation

1. mai 2026 oppdatert av: Ayşe Toraman, Istanbul Saglik Bilimleri University

Socket Preservation and Odontogenic Graft Obtained From Human Tooth

Tooth extraction triggers a cascade of biological events mediated by the local inflammatory response following surgical intervention and by the loss of masticatory stimulation to the periodontium. These factors disrupt the homeostasis and structural integrity of the periodontal tissues. Following tooth loss, bone remodeling is initiated and continues for several months, with the majority of dimensional and morphological changes occurring within the first three months. This early alveolar bone resorption may compromise future implant placement and prosthetic rehabilitation.

Previous studies by Schmidt-Schultz and Schultz have demonstrated that biologically intact growth factors can be preserved within the collagenous extracellular matrix of ancient human bone and teeth. These findings suggest that stored dentin may retain biologically active growth factors and provide regenerative benefits comparable to those of freshly prepared dentin, while eliminating the need for simultaneous multiple surgical interventions. Moreover, the volume of particulate dentin exceeds twice the original root volume, allowing for the acquisition of sufficient graft material for clinical application.

Based on these biological and volumetric advantages, the use of autogenous stored mineralized dentin grafts (ASMDG) has emerged as a promising approach for alveolar socket preservation. ASMDG may contribute to limiting post-extraction alveolar ridge resorption and maintaining ridge dimensions during the critical early healing period.

Studieoversikt

Studietype

Observasjonsmessig

Registrering (Antatt)

21

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

    • Uskudar
      • Istanbul, Uskudar, Tyrkia (Türkiye), 34668
        • Health Sciences University

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

  • Voksen
  • Eldre voksen

Tar imot friske frivillige

Ja

Prøvetakingsmetode

Ikke-sannsynlighetsprøve

Studiepopulasjon

Adult, systemically healthy patients indicated for the extraction of at least two posterior teeth with a hopeless prognosis due to periodontal disease, root caries, or root fractures, and who are candidates for implant-supported posterior rehabilitation. Eligible participants will present with intact alveolar socket walls after extraction, have no systemic or local contraindications affecting bone healing, and will provide written informed consent and comply with follow-up visits.

Beskrivelse

Inclusion Criteria:

  • Patients requiring tooth extraction due to periodontal reasons (teeth with a hopeless prognosis), root caries, or root fractures, who are simultaneously candidates for posterior replacement with an osseointegrated implant, and who require extraction of at least two teeth.
  • Integrity of the alveolar socket walls following tooth extraction.
  • Patients who accept the study conditions, sign written informed consent, and agree to attend the scheduled follow-up visits.

Exclusion Criteria:

  • General contraindications for dental and/or surgical treatments.
  • Inflammatory or autoimmune diseases of the oral cavity.
  • Uncontrolled diabetes mellitus (HbA1c > 7%).
  • History of malignancy requiring chemotherapy or radiotherapy within the past 5 years.
  • Previous treatment with immunosuppressive agents, bisphosphonates, or high-dose corticosteroids.
  • Smoking more than 10 cigarettes per day.
  • Pregnant or breastfeeding women.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

Kohorter og intervensjoner

Gruppe / Kohort
Study Group
Dentin graft socket preservation
Control Group
Spontaneous healing

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Mean change in horizontal alveolar ridge width (mm) from baseline to 4 months (CBCT)
Tidsramme: Baseline (immediately after tooth extraction) and 4 months postoperatively (prior to implant placement)

Horizontal alveolar ridge width will be measured in millimeters using cone-beam computed tomography (CBCT) at baseline (immediately after tooth extraction) and at 4 months postoperatively prior to implant placement.

The primary outcome will be defined as the mean change in ridge width (Δ width = width at 4 months - width at baseline), expressed in millimeters.

Baseline (immediately after tooth extraction) and 4 months postoperatively (prior to implant placement)

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Mean change in vertical alveolar ridge height (mm) from baseline to 4 months (CBCT)
Tidsramme: Baseline (immediately after tooth extraction) and 4 months postoperatively (prior to implant placement)

Vertical alveolar ridge height will be measured in millimeters using cone-beam computed tomography (CBCT) at baseline (immediately after tooth extraction) and at 4 months postoperatively prior to implant placement.

The secondary outcome will be defined as the mean change in ridge height (Δ height = height at 4 months - height at baseline), expressed in millimeters.

Baseline (immediately after tooth extraction) and 4 months postoperatively (prior to implant placement)

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

2. februar 2026

Primær fullføring (Antatt)

1. august 2026

Studiet fullført (Antatt)

1. september 2026

Datoer for studieregistrering

Først innsendt

20. februar 2026

Først innsendt som oppfylte QC-kriteriene

1. mai 2026

Først lagt ut (Faktiske)

7. mai 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

7. mai 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

1. mai 2026

Sist bekreftet

1. februar 2026

Mer informasjon

Begreper knyttet til denne studien

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

Abonnere