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Evaluation of aMMP-8 and IL-1β Levels and Marginal Bone Loss Associated With Peri-Implant Mucositis and Peri-Implantitis in Postmenopausal Women

21. august 2026 opdateret af: Emrah Turkmen, Medipol University

Peri-implant mucositis and peri-implantitis are among the major biological complications threatening the long-term success of dental implants. Current diagnostic approaches are primarily based on clinical and radiographic assessments; however, there is still a need for reliable biomarkers that can detect biological alterations before extensive tissue destruction occurs. Hormonal changes associated with the postmenopausal period may influence bone metabolism and inflammatory responses, thereby increasing the susceptibility of peri-implant tissues to disease. Nevertheless, studies investigating local inflammatory biomarkers in peri-implant diseases among postmenopausal women remain limited.

Active matrix metalloproteinase-8 (aMMP-8) is a key enzyme involved in collagen degradation and connective tissue destruction and is considered one of the most important biomarkers of periodontal and peri-implant tissue breakdown. Interleukin-1 beta (IL-1β) is a potent pro-inflammatory cytokine associated with inflammatory responses, bone resorption, and tissue destruction. Assessment of these biomarkers in peri-implant crevicular fluid may contribute to the early diagnosis and risk assessment of peri-implant diseases.

The aim of this project is to evaluate the association between peri-implant health, peri-implant mucositis, peri-implantitis, and peri-implant crevicular fluid levels of aMMP-8 and IL-1β in postmenopausal women, together with clinical and radiographic parameters. Postmenopausal women with at least one functional dental implant will be recruited and classified into three groups according to their peri-implant status. Clinical peri-implant parameters will be recorded, standardized radiographic examinations will be performed, and peri-implant crevicular fluid samples will be collected using the PerioPaper method. Levels of aMMP-8 and IL-1β will be quantified using enzyme-linked immunosorbent assay (ELISA).

The obtained data will be analyzed using advanced statistical methods to investigate the relationships between biomarker levels and clinical and radiographic disease parameters. In addition, the diagnostic performance of aMMP-8 and IL-1β for distinguishing peri-implantitis will be evaluated using receiver operating characteristic (ROC) analyses, and potential threshold values will be explored. The project is expected to provide novel insights into the role of local inflammatory biomarkers in peri-implant diseases among postmenopausal women, contribute to the identification of high-risk individuals, and support the development of personalized preventive and therapeutic strategies.

Studieoversigt

Status

Aktiv, ikke rekrutterende

Betingelser

Undersøgelsestype

Observationel

Tilmelding (Anslået)

120

Kontakter og lokationer

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Studiesteder

Deltagelseskriterier

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Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ja

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

Postmenopausal women aged 45-70 years with at least one functional dental implant will be recruited from patients attending the Periodontology Clinic. Participants will be classified according to their peri-implant clinical and radiographic status as peri-implant health, peri-implant mucositis, or peri-implantitis.

Beskrivelse

Inclusion Criteria:

  • Postmenopausal status, defined as amenorrhea for at least 12 months
  • Aged 45-70 years
  • Presence of at least one functional dental implant
  • Completed and functional implant-supported prosthetic restoration
  • Implant in function for at least 1 year after prosthetic loading
  • No systemic or local condition preventing clinical or radiographic assessment
  • Provision of written informed consent

Exclusion Criteria:

  • Current smoking
  • Presence of uncontrolled systemic disease
  • Use of antibiotics or anti-inflammatory medications within the past 3 months
  • Periodontal or peri-implant surgical treatment within the past 6 months
  • History of radiotherapy to the head and neck region or chemotherapy
  • Any condition preventing reliable clinical, radiographic, or biochemical assessment

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
Postmenopausal Peri-implant Health
Postmenopausal women with healthy peri-implant tissues, without clinical signs of inflammation or pathological bone loss.
Postmenopausal Peri-implant mucositis
Postmenopausal women with peri-implant soft tissue inflammation without progressive bone loss.
Postmenopausal Peri-implantitis
Postmenopausal women with peri-implant inflammation and progressive supporting bone loss.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
IL-1B levels
Tidsramme: baseline
Saliva and Peri-implant Sulcular Fluid Interleukin-1B (IL-1b) Levels measured by ELISA
baseline
aMMP-8 levels
Tidsramme: baseline
Saliva and Peri-implant Sulcular Fluid active-Matrix Metalloproteinase-8 (aMMP-8) Levels measured by ELISA
baseline
Marginal bone loss
Tidsramme: baseline
Marginal bone levels will be measured mesially and distally on standardized periapical radiographs using a fixed implant reference point.
baseline

Samarbejdspartnere og efterforskere

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Sponsor

Datoer for undersøgelser

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Studer store datoer

Studiestart (Faktiske)

19. marts 2026

Primær færdiggørelse (Anslået)

1. februar 2027

Studieafslutning (Anslået)

1. februar 2027

Datoer for studieregistrering

Først indsendt

21. august 2026

Først indsendt, der opfyldte QC-kriterier

21. august 2026

Først opslået (Faktiske)

25. august 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

25. august 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

21. august 2026

Sidst verificeret

1. august 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • 335

Plan for individuelle deltagerdata (IPD)

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INGEN

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Ingen

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