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Tissue Alterations in Aggressive and Chronic Periodontitis

Comparison of the Physiologic and Biochemical Alterations in the Healthy and Affected Sites of Chronic and Aggressive Periodontitis Patients

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT03625414
Enrollment
45
Registered
2018-08-10
Start date
2017-02-01
Completion date
2018-06-01
Last updated
2018-08-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic Periodontitis, Localized Aggressive Periodontitis

Brief summary

Present study intended to compare diseased and healthy sites in chronic and aggressive periodontitis with healthy individuals. The investigators suggest that even unaffected healthy sites of both chronic and aggressive periodontitis patients exhibit subclinical inflammation and tissue destruction with decreased fibroblast cell counts and increased inflammatory cell counts. Investigators also suggest that a possible mechanism which might play a role in the disease progression might occur via a disbalance between matrix metalloproteinases and their inhibitors, and increased hypoxia in diseased sites.

Detailed description

Periodontal disease disrupts soft tissue metabolism in the gingiva through a decrease in the production of collagen, the quality, and quantity of the connective tissue. The etiology and pathogenesis of chronic periodontitis are mostly revealed however, there are many dark points in the etiopathogenesis of aggressive periodontitis. The existence of periodontal destruction at even one tooth in the mouth increases the risk of further periodontal destruction. However, the incidence of progression of the disease to the unaffected teeth was not demonstrated. Yet, the progression of the disease from diseased sites to healthy sites is likely to occur but no evidence is present comparing healthy and diseased sites of chronic and aggressive periodontitis. Present study aimed to evaluate the histological changes in both diseased and healthy sites in both localized aggressive periodontitis (LAgP) and chronic periodontitis (CP) patients by determining fibroblast and inflammatory cell counts in histologic slides and immunohistochemical staining of enzymes and hypoxia markers in order to better understand the dimensions of this demolition in periodontal disease.

Interventions

None listed

Sponsors

Tokat Gaziosmanpasa University
Lead SponsorOTHER

Study design

Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
30 Years to 45 Years
Healthy volunteers
Yes

Inclusion criteria

Age range from 30 to 45, the existence of at least 20 functioning teeth, no history of smoking, systemical health, no antibiotic use within 6 months, no periodontal therapy within 6 months, no pregnancy or lactation, no drug use, in addition; For healthy individuals, the existence of oral health * For localized aggressive periodontitis, the existence of the disease at least for 5 years, the presence of both healthy and diseased sites in the same patient. * For chronic periodontitis, the existence of the disease at least for 5 years, the presence of both healthy and diseased sites in the same patient.

Exclusion criteria

* Patients younger than 30 older than 45 years old, the absence of occlusion, drug use, pregnancy/lactation, smoking, previous antibiotic use, previous periodontal therapy, the existence of any systemical disease.

Design outcomes

Primary

MeasureTime frameDescription
Fibroblast and total inflammatory cell countsBiopsies were obtained a day after initial examinations, histological analysis were performed 2 weeks after.Fibroblast and total inflammatory cell counts in the groups were determined in a standardized 1000 micrometer square area with histomorphometric evaluation.

Secondary

MeasureTime frameDescription
Immunohistochemical stainingBiopsies were obtained a day after initial examinations, histological analysis were performed 2 weeks afterExpressions of matrix metalloproteinase 8 and tissue inhibitor, hypoxia inducible factor-1alpha and vascular endothelial growth factor were evaluated in histological slides.

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026