Peri-Implant Health, Peri Implant Mucositis, Peri Implantitis
Conditions
Keywords
peri-implantitis, amino acids, saliva
Brief summary
Peri-implant diseases, encompassing peri-implant mucositis and peri-implantitis, are biologically driven inflammatory conditions that threaten the long-term success of dental implants. The microbial signatures and their metabolic products have prompted growing interest in salivary biomarkers, particularly amino acids (AAs), which may reflect both microbial activity and host response.However, despite increasing evidence of periodontal disease, the role of salivary AAs in peri-implant conditions remains underexplored.The aim of this study is to comprehensively evaluate and compare the salivary free amino acid profiles among individuals with peri-implantitis, peri-implant mucositis, and healthy peri-implant mucosa, as well as those with periodontitis, gingivitis, and a healthy periodontium, and seeks to investigate whether distinct salivary amino acid signatures are linked to different stages and types of peri-implant and periodontal inflammation, and to evaluate their potential as non-invasive biomarkers for disease differentiation, activity, and severity
Detailed description
The study included one-hundred and thirty-two patients who applied to the Department of Periodontology at Istanbul Medipol University, Faculty of Dentistry. Four of the one-hundred and thirty-two patients declined to participate in the trial. Two patients were eliminated because they had recently taken antibiotics, six patients were discarded because they had recently received periodontal therapy, and six patients were excluded because they had systemic diseases, resulting in a final sample size of one-hundred and twenty patients .Quantitative analysis of amino acids in saliva was carried out using liquid chromatography-tandem mass spectrometry (LC-MS/MS) with a Thermo Scientific TSQ Quantum Access MAX system.
Interventions
OTHERSaliva sampling
Unstimulated, whole saliva was collected from all participants across the six study groups following a detailed explanation of the procedure. Initially, individuals were asked to rinse their mouths with filtered water and remain seated in a relaxed position for five minutes. Then, they were instructed to passively drool into a sterile collection tube over a 10-minute period.31 The collected saliva samples were then centrifuged at 3000 ×g for 10 minutes to remove debris and prepare them for storage at -80°C .
OTHERAmino Acid Analysis
Saliva samples were deproteinized by mixing with 6% sulfosalicylic acid in a 1:1 ratio, followed by incubation at room temperature for 5 minutes. The mixtures were then centrifuged at 15,000 rpm for 5 minutes. A 10 µL aliquot of the resulting supernatant was diluted with 800 µL of 2 mM tridecafluoroheptanoic acid containing 0.375 M glucosaminic acid and internal standards. The prepared solutions were transferred into autosampler vials for analysis. Calibration standards were generated by combining known concentrations of amino acid standards.
Sponsors
Lokman Hekim University
Ankara University
Ankara Medipol University
Istanbul Medipol University Hospital
Study design
Observational model
OTHER
Time perspective
CROSS_SECTIONAL
Eligibility
Sex/Gender
ALL
Age
20 Years to 65 Years
Healthy volunteers
Yes
Inclusion criteria
* be between 18 and 65 years of age * have a minimum of 20 natural teeth, excluding third molars (for non-implant-treated groups) * be edentulous patients treated with implants loaded at least 1 year prior (for implant-treated groups) * be in a systemically healthy condition.
Exclusion criteria
* current tobacco use * chronic use of any systemic medication * use of antibiotics, anti-inflammatory drugs (including corticosteroids and NSAIDs), immunosuppressants, beta-blockers, calcium channel blockers, anticoagulants, or hormonal contraceptives within the 3 months prior to the study * receipt of periodontal therapy within the past 6 months * pregnancy or breastfeeding * presence of orthodontic appliances a DMFT index (Decayed, Missing, and Filled Teeth per tooth) greater than 2
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Pocket probing depth | 3 months | Measurement of the depth of a sulcus or periodontal pocket determined by measuring distance from a gingival margin to the base of the sulcus or pocket with a calibrated periodontal probe |
| Bleeding on probing | 4 months | Bleeding on probing referring to bleeding that is induced by gentle manipulation of the tissue at the depth of the gingival sulcus, or interface between the gingiva and a tooth |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| saliva analyses for selected molecules | 4 months | Quantitative analysis of amino acids in saliva was carried out using liquid chromatography-tandem mass spectrometry. |
Countries
Turkey (Türkiye)
Outcome results
None listed