MUMBAI, India, Sept. 14 -- Intellectual Property India has published a patent application (202641100113 A) filed by Saveetha Institute Of Medical And Technical Sciences on August 19, 2026, for A Self-Centering Trephine Bur With Adjustable Depth Control For Atraumatic Removal Of Existing Dental Crowns.
Inventors include Vandana Thamilselvan; K. Lokesh Sai; and Deepak Nallaswamy Veeraiyan.
The application for the patent was published on September 11, 2026, under issue no. 37/2026.
Abstract: The present invention discloses a self-centering trephine bur intended for the atraumatic removal of existing dental crowns. The device comprises a hollow cylindrical diamond-coated cutting rim, a spring-loaded central guide pin, an adjustable depth-control mechanism, internal irrigation channels, and a transparent protective shield. The invention enables controlled circumferential cutting of the luting cement interface while minimizing damage to the prepared tooth and adjacent soft tissues. The device reduces operative time, improves procedural safety, enhances operator precision, and facilitates intact crown retrieval whenever clinically feasible. The invention is compatible with conventional dental handpieces and is suitable for use in prosthodontics, restorative dentistry, implant dentistry, and endodontics.
Disclaimer: Curated by HT Syndication.
