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Membrane Alteration clinical trials

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
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NCT ID: NCT02168322 Completed - Clinical trials for Vascular Endothelial Growth Factor Overexpression

Perforated Barrier Membranes Maintain Physiologic Gingival Crevicular Fluid Growth Factor Levels

Start date: October 2013
Phase: N/A
Study type: Interventional

Membrane modifecation: Guided tissue membrane perforations may serve as a more biologic scaffold that could allow for the free passage of biologic mediators from the periosteum and overlying gingival connective tissue into the periodontal defects. Study hyposethis: To test this hyposthesis, this study was designed to evaluate levels of vascular endothelial cell growth factors and platlet derived growth factors in gingival crevicular fluid (GCF) during the early stages of healing for localized intrabony defects treated with modified perforated membranes (MPMs), occlusive membranes (OMs) as compared to open flap debridement control (OFD). Methods: Thirty non-smoking patients with severe chronic periodontitis participated in this prospective, randomized and single blinded trial. Each patient contributed one interproximal defect that was randomly assigned to experimental modified perforated membrane group (10 sites), occlusive membrane group (10 sites) or open flap debridement control (10 sites). Plaque index, gingival index, probing depth (PD), clinical attachment level (CAL) and the intrabony depth of the defect (IBD) were measured at baseline for patients enrollment. Gingival crevicular fluid (GCF) samples were collected on day 1 and 3, 7, 14, 21, and 30 days after therapy. The primary outcome variable was the change in VEGF and PDGF-BB levels for sites treated by MPMs or OM compared to that of the OFD treated cases.