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    • Conventional Gum Grafting vs Chao Pinhole Surgical Technique - Duration: 77 seconds.

      • 2 years ago
      Pinhole Surgical Technique (PST) is a breakthrough treatment for gum recession invented by Dr. John Chao.
      Dr. Andrew K. H. Lee has been trained by Dr. Chao to perform the minimally invasive proce...
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