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Sikora R, Duspara K, Matić A, Petrović A, Kralik K, Smolić R, Sikora M, Šarac MČ, Bojanić K, Smolić M. Stabilization Splint Therapy for Patients with Temporomandibular Disorders Improves Opening Movements and Jaw Limitation and Attenuates Pain by Influencing the Levels of IL-7, IL-8, and IL-13 in the Gingival Crevicular Fluid. MEDICINA (KAUNAS, LITHUANIA) 2025; 61:375. [PMID: 40142185 PMCID: PMC11944041 DOI: 10.3390/medicina61030375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2025] [Revised: 01/21/2025] [Accepted: 02/17/2025] [Indexed: 03/28/2025]
Abstract
Background and Objectives: In recent years, numerous studies have investigated and analyzed the levels of molecular biomarkers of temporomandibular disorders (TMD) from various tissue samples and body fluids. However, no study has investigated gingival crevicular fluid (GCF) in TMD patients. The purpose of this study was to determine the concentrations of pro-inflammatory cytokines in GCF before and after stabilization splint (SS) therapy in patients with painful TMD, to investigate whether SS administration causes changes in the concentrations of pro-inflammatory cytokines. An additional aim was to investigate the relationship of GCF cytokine levels with chronic pain intensity and clinical parameters. Materials and Methods: This prospective cohort study included 36 patients who were diagnosed with painful TMD using the Diagnostic Criteria for TMD (DC/TMD). GCF samples were collected at baseline before SS treatment (T0) and at one month (T1) and three months (T2) after the start of therapy. Customized ProcartaPlex Multiplex assays from eBioscience (Invitrogen™, Thermo Fisher Scientific, Viena, Austria) were used for the quantitative analysis of pro-inflammatory cytokines (IL-1β, IL-6, IL-7, IL-8, IL-13, and TNF-α). Patients filled out Croatian versions of questionnaires for self-assessment from Axis II DK/TMP: Graded Chronic Pain Scale (v2) (GCPSv2) and Jaw Function Limitation Scale-20 (JFLS-20). Results: The results showed that the GCF levels of IL-7 (Friedman's test, p = 0.008) and IL-13 (Friedman's test, p = 0.003) were significantly decreased at T2. The GCF level of IL-13 was in negative correlation with chronic pain grade score at T2 (Rho = -0.333), while the GCF level of IL-8 was in positive correlation with mobility limitation (Rho = 0.382) at T1. Conclusions: The results indicate that SS therapy might have a role in reducing inflammation and that the GCF could be a valuable medium for assessing molecular biomarkers.
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Affiliation(s)
- Renata Sikora
- Faculty of Dental Medicine and Health Osijek, J. J. Strossmayer University of Osijek, 31000 Osijek, Croatia; (R.S.); (K.D.); (A.M.); (A.P.); (R.S.); (M.S.); (M.Č.Š.); (K.B.)
- Health Center Osijek-Baranja County, 31000 Osijek, Croatia
- Faculty of Medicine Osijek, J. J. Strossmayer University of Osijek, 31000 Osijek, Croatia;
| | - Kristina Duspara
- Faculty of Dental Medicine and Health Osijek, J. J. Strossmayer University of Osijek, 31000 Osijek, Croatia; (R.S.); (K.D.); (A.M.); (A.P.); (R.S.); (M.S.); (M.Č.Š.); (K.B.)
- Faculty of Medicine Osijek, J. J. Strossmayer University of Osijek, 31000 Osijek, Croatia;
- Public Health Scientific Institution Medical Center “Dr. Mustafa Sehovic”, 75000 Tuzla, Bosnia and Herzegovina
| | - Anita Matić
- Faculty of Dental Medicine and Health Osijek, J. J. Strossmayer University of Osijek, 31000 Osijek, Croatia; (R.S.); (K.D.); (A.M.); (A.P.); (R.S.); (M.S.); (M.Č.Š.); (K.B.)
| | - Ana Petrović
- Faculty of Dental Medicine and Health Osijek, J. J. Strossmayer University of Osijek, 31000 Osijek, Croatia; (R.S.); (K.D.); (A.M.); (A.P.); (R.S.); (M.S.); (M.Č.Š.); (K.B.)
- Faculty of Medicine Osijek, J. J. Strossmayer University of Osijek, 31000 Osijek, Croatia;
| | - Kristina Kralik
- Faculty of Medicine Osijek, J. J. Strossmayer University of Osijek, 31000 Osijek, Croatia;
| | - Robert Smolić
- Faculty of Dental Medicine and Health Osijek, J. J. Strossmayer University of Osijek, 31000 Osijek, Croatia; (R.S.); (K.D.); (A.M.); (A.P.); (R.S.); (M.S.); (M.Č.Š.); (K.B.)
| | - Miroslav Sikora
- Faculty of Dental Medicine and Health Osijek, J. J. Strossmayer University of Osijek, 31000 Osijek, Croatia; (R.S.); (K.D.); (A.M.); (A.P.); (R.S.); (M.S.); (M.Č.Š.); (K.B.)
- Health Center Osijek-Baranja County, 31000 Osijek, Croatia
| | - Martina Čalušić Šarac
- Faculty of Dental Medicine and Health Osijek, J. J. Strossmayer University of Osijek, 31000 Osijek, Croatia; (R.S.); (K.D.); (A.M.); (A.P.); (R.S.); (M.S.); (M.Č.Š.); (K.B.)
- Health Center Osijek-Baranja County, 31000 Osijek, Croatia
| | - Kristina Bojanić
- Faculty of Dental Medicine and Health Osijek, J. J. Strossmayer University of Osijek, 31000 Osijek, Croatia; (R.S.); (K.D.); (A.M.); (A.P.); (R.S.); (M.S.); (M.Č.Š.); (K.B.)
- Health Center Osijek-Baranja County, 31000 Osijek, Croatia
- Faculty of Medicine Osijek, J. J. Strossmayer University of Osijek, 31000 Osijek, Croatia;
| | - Martina Smolić
- Faculty of Dental Medicine and Health Osijek, J. J. Strossmayer University of Osijek, 31000 Osijek, Croatia; (R.S.); (K.D.); (A.M.); (A.P.); (R.S.); (M.S.); (M.Č.Š.); (K.B.)
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