Patents Assigned to Dennis Smith Consulting Limited
  • Bonding to calcified tissues
    Patent number: 4600383
    Abstract: Bonding to calcified tissues, including human teeth, tooth dentine and bone, is achieved through the medium of crystal growth adhered to the tissue. The crystals preferably comprise gypsum crystals which are formed by contacting the tissue surface with a mildly acidic solution containing sulphate ions. An uncured liquid resin is applied to the crystal growth and is cured to achieve adhesion by micromechanical interlock with the crystal growth and by superficial penetration of the tissue surface.
    Type: Grant
    Filed: February 22, 1985
    Date of Patent: July 15, 1986
    Assignees: Dennis Smith Consulting Limited, Romada Holdings Ltd.
    Inventors: Dennis C. Smith, Rolf Maijer
  • Bonding to calcified tissues
    Patent number: 4382792
    Abstract: Bonding to calcified tissues, including human teeth, tooth dentine and bone, is achieved through the medium of crystal growth adhered to the tissue. The crystals preferably comprise gypsum crystals which are formed by contacting the tissue surface with a mildly acidic solution containing sulphate ions.
    Type: Grant
    Filed: February 17, 1981
    Date of Patent: May 10, 1983
    Assignees: Dennis Smith Consulting Limited, Romada Holdings Ltd.
    Inventors: Dennis C. Smith, Rolf Maijer