Width of attached gingiva index (AG)
It was measured by subtracting the sulcus depth from the distance between the free gingival margin and the mucogingival junction. Both RD and AG were performed at the mid‐buccal gingival of the teeth, by UNC‐15 probe (University of North Carolina‐15) with acrylic stent and recorded before starting, after 1 month, 3 months, and 6 months.