Platelet rich plasma and connective tissue graft for root coverage: randomized clinical trial. Preliminary results
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BACKGROUND: Obtaining predictableand esthetic root coverage, hasbecome a primary objective inmucogingival surgery. Recently, thetreatment of gingival recessions hasbecome an esthetic need, for which,various surgical procedures have beenadvocated. OBJECTIVE: To comparethe amount of root coverage (RC) obtained with the use of autologousplatelet rich plasma (aPRP) beforeconnective tissue graft (CTG) placement, with the use of CTG alone,in the treatment of gingival recessiondefects. METHODS: This clinical trialwas done in 24 homologous teeth takenfrom 8 patients, with bilateral Miller classI or II buccal gingival recession defects,randomly assigned to the test group(aPRP and CTG). The contralateral sitewas assigned to the control group (CTGalone). A blind calibrated examinerrecorded all measurements at baselineand at three months post-surgery, thatincluded gingival margin position,probing depth, clinical attachment level,attached gingiva, and mesodistaldistance of the defect. Data wereanalyzed statistically with Student’s tpaired test (p£0.05). RESULTS: Bothtreatments demonstrated significantclinical and statistical differences forRC. The mean RC percentage was 96±42.7% for the control group, and forthe test group was 119.3 ±43.3%;although there were better results withthe use of aPRP, differences betweenboth groups were not statisticallysignificant (p=0.198). CONCLUSIONS:The use of platelet rich plasma doesnot improve statistically the clinicaloutcome of the surgical technique, whencoronally positioned flaps with CTG areperformed.
gingival recession., platelet rich plasma, grafts, connective tissue, growth factors, periodonticsrecesión gingival, plasma rico en plaquetas, injertos, tejido conectivo, factores de crecimiento, periodoncia
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