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Chao Pinhole® Technique in NYC

Medically Reviewed by Scott H. Froum, DDS, Board-Certified Periodontist
Dr. Froum provides periodontal treatment, dental implant care, and gum recession therapy in Midtown Manhattan. He has published on the Pinhole Surgical Technique and the use of platelet-rich fibrin in soft-tissue grafting.

Minimally Invasive Gum Recession Treatment

male patient with doctor scott froum after a CPT procedure

The Chao Pinhole® Surgical Technique (PST) is a comfortable, minimally-invasive, scalpel and suture-free technique for treating gum recession.

Gum recession is very common, affecting up to 84% of adults, and can result in long and ugly teeth, sensitive roots and even eventual tooth loss. Traditional methods of treatment involve removing tissue from the palate and using sutures to secure it over the exposed root surfaces. However, the Pinhole Technique offers an alternative approach by utilizing the existing gums around the teeth with recession.  Through a small opening, the gum tissue is gently elevated and repositioned, while collagen is placed underneath to stabilize the new position and encourage healing. This minimally invasive method reduces discomfort, speeds up recovery, and provides excellent esthetic results Chao Pinhole® Surgical Technique may be more suitable to your needs depending on the issues present. 

Contact our office today to schedule an evaluation and learn more about how we can help restore your gum health.

What Does the Research Say About PST?

Research on the Chao Pinhole Surgical Technique suggests it can improve root coverage, reduce sensitivity, and create esthetic gumline improvements, especially for mild to moderate recession. Some studies also show that adding platelet-rich fibrin may improve healing and tissue stability in selected cases. Like all periodontal procedures, results depend on diagnosis, tissue thickness, bone support, oral hygiene, smoking status, bite forces, and post-operative care.

Who May NOT Be a Good Candidate for the Chao Pinhole Technique?


PST may not be the best option for every case of gum recession. Patients may need a different approach if they have advanced bone loss, very thin gum tissue, untreated periodontal disease, poor plaque control, heavy smoking, active inflammation, unstable bite forces, or recession caused by an unresolved habit such as aggressive brushing. In advanced cases, Dr. Froum may recommend connective tissue grafting, PRF, bone grafting, periodontal therapy, or a combined approach.

Examples of How We Reverse Gum Recession​

Check out these two before and after videos below on how PST was used to correct gum recession for natural teeth and implants.

Pinhole Surgery to Correct Gum Recession

Pinhole Surgery around Dental Implants to Correct Gum Recession

Treatment comparison

Chao Pinhole Technique vs. Traditional Gum Grafting

Both treatments can help correct gum recession, but they work in different ways. The best option depends on your gum thickness, recession depth, bone support, oral hygiene, bite forces, and overall periodontal health.

Question Chao Pinhole Technique Traditional Gum Grafting
How it works A small entry point is made in the gum tissue, and specialized instruments are used to gently reposition the gumline over exposed roots. Gum tissue is added to areas of recession, often using tissue from the roof of the mouth or donor tissue.
Donor tissue from the palate? Usually no. This is one reason many patients prefer PST when they are good candidates. Often yes, although donor tissue may be an option in certain cases.
Sutures Often minimal or none, depending on the case and the provider’s technique. Usually required to stabilize the grafted tissue during healing.
Best suited for Many mild to moderate recession cases, especially when multiple teeth need treatment and there is enough healthy gum tissue. Thin gum tissue, more complex defects, severe recession, or cases where additional tissue thickness is needed.
Recovery experience Many patients experience less post-treatment discomfort because tissue is not usually taken from the palate. Recovery can involve soreness at both the treated area and the donor site if tissue is taken from the palate.
Limitations Not ideal for every recession pattern. Results depend on tissue thickness, bone support, inflammation control, and patient compliance after treatment. More invasive, but it may be the better option when stronger tissue support or root coverage is needed.
How to choose Considered when the goal is a minimally invasive approach and the clinical conditions support predictable gum repositioning. Considered when the gums need additional tissue thickness, the recession is more advanced, or PST is not expected to provide the most stable result.
Important: The right treatment cannot be chosen by appearance alone. A periodontal exam is needed to evaluate gum thickness, recession depth, bone support, inflammation, brushing habits, bite forces, and whether gum disease is active.

Frequently Asked Questions About PST

Related Dental Services

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1110 2nd Ave Ste 305
New York, NY 10022

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