The Chao Pinhole® Surgical Technique (PST), invented and patented by John Chao, DDS, MAGD, is a scalpel-free, suture-free procedure for correcting gum recession. Dr. Lawrence Chong had the opportunity to be trained by Dr. Chao and through a small hole made by a needle, he uses specially designed instruments to gently loosen the gum tissue and glide it over the receded part of the tooth. Since there is no cutting or stitching, patients can expect minimal post-operative symptoms (pain, swelling and bleeding). Most patients also are pleasantly surprised by the instant cosmetic improvement. For more information please go to :https://www.pinholesurgicaltechnique.com/