CompletedPhase 4

Enamel Matrix Proteins in the Treatment of Intrabony Defects in Patients With Aggressive and Chronic Periodontitis

Brazil45 participantsStarted 2016-02

Plain-language summary

Approaches and objectives related to the treatment of patients with aggressive periodontitis are not markedly different compared patients with the chronic form. However, the large bone loss related to young age in this aggressive form, justify a well-founded strategy, intending to further stabilization of disease progression. For this, should make use of regenerative therapies in the advanced stages of treatment. Noteworthy is the use of proteins derived from the enamel matrix (EMD) in patients with chronic periodontitis, but there is little evidence about the effects of this material in aggressive periodontitis. Thus, the present study aims to evaluate the use of EMD in patients with aggressive periodontitis, comparing them to individuals with chronic periodontitis. Will then be selected 45 subjects, among patients with generalized chronic periodontitis (GCP) and generalized aggressive periodontitis (GAP), with one or more intra-bony defects in radiographic examination, with a minimum size of 4 mm deep and 2 mm horizontal, associated with a probing depth (PD) ≥6mm, to be treated according to the groups: GAP+OFD (n = 15) GAP patients which will receive open flap debridement; GAP+OFD/EMD (n=15) GAP patients which will receive open flap debridement and application of EMD; GCP+OFD/EMD (n=15) GCP patients which will receive open flap debridement and application of EMD. Clinical evaluations will be performed at baseline, 3, 6 months and 1 year after. At baseline, 7, 15, 45 days, 3, 6 months and 1 year after will be collect samples of gingival fluid to detect bone markers by Luminex / MAGpix technology. For the periods baseline, 3, 6 months and 1 year will be collected subgingival biofilm for the detection and quantification of periodontal pathogens by real-PCR. Will still be carried x-rays on baseline, 6 months and 1 year after, and questionnaires about patient satisfaction and perception of therapy at baseline, 7 days and 6 months. To compare the parameters evaluated, ANOVA, Tukey, chi-square, Spearman and Person tests will be used (α = 5%).

Who can participate

Age range18 Years – 70 Years

SexALL

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Inclusion Criteria: * Diagnosis of generalized aggressive periodontitis (verified by the presence of periodontal pockets and radiological loss in patients under the 35 years old at the time of diagnosis); or a diagnosis of generalized chronic periodontitis (in patients over 35 years old); * Presence of infra-osseous defect in radiographic examination with minimum dimensions of 4mm deep and 2mm of horizontal component, associated to periodontal pocket of at least 6mm of PD; * Presence of at least 15 teeth of the oral cavity; * To present less than 20% of plaque index and bleeding on probing after 6 weeks of initial therapy; * Formal consent for participation in research, after explaining the risks and benefits for individual not involved in it. (Resolution No. 196 of October 1996 and the Dental Code of Professional Ethics (C.F.O.) 179/93). Exclusion Criteria: Presence of periapical or pulpal alteration; * Presence of systemic alteration or use of medications (6 months prior to the study) that may influence the response to periodontal treatment; * Pregnant and lactating women; * Smoking; * Periodontal treatment including subgingival instrumentation in the 6 weeks prior to the study; * Teeth with bifurcation involvement; * Teeth with marked mobility; * Oral pathology, chronic disease or history of allergy to any component of the study; * Previous periodontal surgery in the region of interest.

What they're measuring

Relative Clinical Attachment Level

Timeframe: 1 year

Trial details

NCT IDNCT03025204

SponsorUniversity of Campinas, Brazil

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2018-04