Swiss Biologic Dentistry is raising the bar for dentistry in Phoenix, becoming one of the few practices in the state to offer the Pinhole Surgical Technique (PST™). It is also among a smaller number nationwide that pair the treatment with platelet-rich fibrin (PRF) to support healing.
PST™ is a minimally invasive option for gum recession, a condition that affects more than half of U.S. adults. Left untreated, recession exposes tooth roots, heightens sensitivity and accelerates decay. Traditional grafting requires tissue from the roof of the mouth, addresses only a few teeth at a time, and involves weeks of recovery.
PST™ follows a different approach. Instead of cutting, doctors use a fine needle to create a small entry point. Specialized instruments lift the gum tissue, which is then repositioned over exposed roots. Multiple collagen strips are placed beneath the gums to stabilize and heal.
Unlike grafting, which can only repair three teeth per surgery, PST™ can treat several teeth or even the entire mouth in one session. The length of treatment depends on how many teeth are involved, but patients typically return to normal activities within a few days. While gums take about six weeks to fully stabilize, the cosmetic improvement is visible right away.
“Gum recession is one of the most widespread oral health challenges in the country, yet patients often delay care because conventional surgery feels too invasive,” says Alexis Yip, D.M.D., who leads the practice’s PST™ program. “With this technique, we can resolve the problem efficiently and give patients a more approachable option.”
CEO Matt Ellingson notes that the procedure reflects a broader shift toward less invasive medicine. “By combining PST™ with PRF and regenerative materials, we are not only improving outcomes but also redefining what patients should expect from modern dentistry.”
Photo courtesy of Swiss Biologic Dentistry

















