NCT07701642

Brief Summary

The goal of this observational study is to investigate periodontal inflammatory mediators in systemically healthy children aged 8-13 years with and without molar-incisor hypomineralization (MIH) who require initial periodontal treatment due to gingivitis. The main questions it aims to answer are: Are the levels of periodontal inflammatory mediators in gingival crevicular fluid different between children with MIH and those without MIH? Is the presence and severity of MIH associated with clinical periodontal parameters and dentin hypersensitivity? Researchers will compare children with MIH to children without MIH to determine whether MIH is associated with changes in periodontal inflammatory mediator levels and periodontal clinical findings.

Trial Health

63
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
76

participants targeted

Target at P50-P75 for all trials

Timeline
15mo left

Started Jul 2026

Geographic Reach
1 country

1 active site

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress4%
Jul 2026Nov 2027

First Submitted

Initial submission to the registry

July 1, 2026

Completed
13 days until next milestone

First Posted

Study publicly available on registry

July 14, 2026

Completed
2 days until next milestone

Study Start

First participant enrolled

July 16, 2026

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 25, 2027

Expected
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2027

Last Updated

July 14, 2026

Status Verified

July 1, 2026

Enrollment Period

1.1 years

First QC Date

July 1, 2026

Last Update Submit

July 8, 2026

Conditions

Keywords

periodontal inflammatory markersfirst permenant molars

Outcome Measures

Primary Outcomes (3)

  • Concentration of proinflammatory and anti-inflammatory cytokines in gingival crevicular fluid

    Quantitative concentrations (pg/mL) of IL-1α, IL-1β, IL-6, IL-8, TNF-α, IFN-γ and IL-4, IL-10, IL-13, TGF-β1 measured in gingival crevicular fluid using enzyme-linked immunosorbent assay (ELISA).

    Baseline, 1 month after initial periodontal therapy, and 3 months after initial periodontal therapy

  • Concentration of matrix metalloproteinases in gingival crevicular fluid

    Quantitative concentrations (pg/mL) of MMP-2, MMP-3, MMP-8, MMP-9, MMP-20, and TIMP-1 measured in gingival crevicular fluid using ELISA. Measurements will be obtained at baseline (before initial periodontal therapy) and after completion of initial periodontal therapy.

    Baseline, 1 month after initial periodontal therapy, and 3 months after initial periodontal therapy

  • Total oxidant status and total antioxidant status in gingival crevicular fluid

    Total Oxidant Status (TOS) and Total Antioxidant Status (TAS) measured by spectrophotometric analysis at baseline (before initial periodontal therapy) and after completion of initial periodontal therapy.

    Baseline, 1 month after initial periodontal therapy, and 3 months after initial periodontal therapy

Study Arms (2)

MIH patients requiring initial periodontal treatment

Procedure: Initial periodontal treatment

Patients without MIH requiring initial periodontal treatment

Procedure: Initial periodontal treatment

Interventions

DOS samples will be taken before and after treatment

MIH patients requiring initial periodontal treatmentPatients without MIH requiring initial periodontal treatment

Eligibility Criteria

Age8 Years - 13 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)
Sampling MethodNon-Probability Sample
Study Population

Systemically healthy children aged 8-13 years with gingivitis requiring initial periodontal therapy. The study includes children with molar-incisor hypomineralization (MIH) affecting at least three permanent first molars (study group) and age-matched children without MIH (control group).

You may qualify if:

  • Systemically healthy children aged 8-13 years (both sexes).
  • Children who demonstrate adequate cooperation for dental treatment and study procedures (Frankl Behavior Rating Scale score ≥3).
  • Study group: Children with molar-incisor hypomineralization (MIH) affecting at least three permanent first molars and requiring initial periodontal treatment for gingivitis.
  • Control group: Children without molar-incisor hypomineralization who require initial periodontal treatment for gingivitis.
  • Presence of gingivitis requiring initial periodontal therapy.

You may not qualify if:

  • Use of antibiotics within the previous 1 month.
  • Radiographic evidence of periodontal destruction.
  • History of periodontal treatment within the previous 3 months.
  • Presence of systemic, chronic, or metabolic diseases.
  • Ongoing active orthodontic treatment.
  • Developmental enamel defects other than molar-incisor hypomineralization.
  • History of premature birth.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Marmara Üniversitesi Recep Tayyip Erdoğan Külliyesi Sağlık Yerleşkesi, Diş Hekimliği Fakültesi

Istanbul, MALTEPE, 34854, Turkey (Türkiye)

Location

MeSH Terms

Conditions

Molar Hypomineralization

Condition Hierarchy (Ancestors)

Dental Enamel HypomineralizationDevelopmental Defects of EnamelTooth AbnormalitiesStomatognathic System AbnormalitiesStomatognathic DiseasesTooth DiseasesCongenital AbnormalitiesCongenital, Hereditary, and Neonatal Diseases and Abnormalities

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 1, 2026

First Posted

July 14, 2026

Study Start

July 16, 2026

Primary Completion (Estimated)

August 25, 2027

Study Completion (Estimated)

November 1, 2027

Last Updated

July 14, 2026

Record last verified: 2026-07

Locations