Comparative Clinical Study of Coronally Positioned Flap with and Without Dehydrated Amnion Allograft in the Treatment of Gingival Recession

Purpose nbsp The aim of this study was to clinically evaluate the outcome of root coverage procedure using dehydrated amnion allograft and to compare it to the outcome of a coronally positioned flap procedure in paired marginal tissue recession defects Methods nbsp Ten subjects with bilateral Miller rsquo s class I gingival recession defects Total defects were selected Subjects were allocated randomly to treatment with coronally positioned flap mnion allograft test group and coronally positioned flap control group alone At baseline and months after surgery the following clinical parameters were recorded Recession Depth RD Recession Width RW Probing Pocket Depth PD Relative Attachment Level RAL Width of keratinized gingiva WKG and Thickness of Keratinized Gingiva TKG Results nbsp The mean baseline recession was plusmn mm and plusmn mm for test group and control group respectively After months both treatments resulted in significant root coverage P lt reaching an average of mm gain in the test group and mm gain in the control group The difference in recession reduction between treatments was not statistically significant There were no statistically significant differences between the test and control groups in RD RW PD CAL and WKG However the mean TKG gain was mm for the test group and mm for the control group which was statistically significant P lt Conclusions nbsp It can be concluded that with or without the use of amniotic membrane coronally advanced flap provide significant root coverage in Class I gingival recessions however a greater keratinized tissue thickness can be obtained with the use of amniotic membrane