Any new advancements in gum recession surgery to help gums grow back to full length?

I had combination of pinhole surgery and gum graft to repair gum recession on my front teeth.. However after the surgery, the gums didn't elongate back to the original height as much as I would have liked. The periodontist explained this is in part because the gums will only cover the tooth as much as there is bone support. Ideally, I would like the gums to to cover the teeth by another 2mm. Is there any type of surgery or new advancement that could improve my "long in the tooth" appearance

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