Hi Jia Hui,
Thanks for the D2D. In a gingivectomy procedure, only the gums are trimmed away to even out the gums.
Usually there is discomfort for 24 hours but your dentist will give you painkillers to keep you comfortable. The procedure sounds scary, but it will be done in a jiffy. In my opinion, a gingivectomy is more comfortable than an extraction or wisdom tooth surgery!