An observational study in Postmenopausal Peri-implant Health, Postmenopausal Peri-mucositis and Postmenopausal Peri-implantitis, sponsored by Medipol University. Active, not recruiting at 1 site in Turkey (Türkiye). Open to female participants aged 45 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-08-25.
Sponsored by Medipol University · Observational
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.
265 studies on the registry are indexed under Mucositis; 34 are open to participants now.
This study's planned enrollment of 120 is above the median of 90 across 34 observational studies indexed under Mucositis.
Browse Mucositis studies →Medipol University is the lead sponsor of 326 studies on the registry; 88 are open to participants now.
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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.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Postmenopausal
Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Postmenopausal women with healthy peri-implant tissues, without clinical signs of inflammation or pathological bone loss.
Postmenopausal women with peri-implant soft tissue inflammation without progressive bone loss.
Postmenopausal women with peri-implant inflammation and progressive supporting bone loss.
IL-1B levels
Saliva and Peri-implant Sulcular Fluid Interleukin-1B (IL-1b) Levels measured by ELISA
Time frame: baseline
aMMP-8 levels
Saliva and Peri-implant Sulcular Fluid active-Matrix Metalloproteinase-8 (aMMP-8) Levels measured by ELISA
Time frame: baseline
Marginal bone loss
Marginal bone levels will be measured mesially and distally on standardized periapical radiographs using a fixed implant reference point.
Time frame: baseline
Plan to share: No
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This study is active, not recruiting, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.
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