Patents Assigned to ROEKO GmbH & Co. Dentalerzeugnisse
  • Antibacterial composition for filling root canals and method for preparing the same
    Patent number: 6162056
    Abstract: The invention relates to a composition for filling root canals in humans or animals, comprising: (a) at least one chlorhexidine derivative of at least one carboxylic acid; (b) one or more carriers based on trans-polyisoprene, gutta-percha, balata, silicone, caoutchouc, acrylate, or mixtures thereof; (c) optionally one or more fillers; and (d) optionally one or more X-ray contrast substances.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: December 19, 2000
    Assignee: Roeko GmbH & Co., Dentalerzeugnisse
    Inventor: Werner Mannschedel
  • Composition for filling tooth root canals
    Patent number: 6126446
    Abstract: The present invention relates to a composition for filling tooth root canals comprising an isoprene-based powder and at least one sealer. The composition can be prepared by cooling an isoprene-based material, adding any additives that may be present before, during or after comminution, comminuting and then adding a sealer.
    Type: Grant
    Filed: April 21, 1999
    Date of Patent: October 3, 2000
    Assignee: Roeko GmbH & Co., Dentalerzeugnisse
    Inventor: Werner Mannschedel
  • Two component kit and pin based on gutta-percha for use with the kit
    Patent number: 6120294
    Abstract: The invention relates to a kit having two components which harden upon mixing and are suitable for a root-filling material. Further, the invention relates to a pin on the basis of gutta-percha as an optional further component of the kit.
    Type: Grant
    Filed: March 10, 1998
    Date of Patent: September 19, 2000
    Assignee: ROEKO GmbH & Co Dentalerzeugnisse
    Inventors: Jurgen Engelbrecht, Jurgen Eberlein, Werner Mannschedel, Wolfram Ziegler
  • Substance mixture for cofferdam material, cofferdam material, and the use and preparation thereof
    Patent number: 5961250
    Abstract: The invention relates to a substance mixture for a material for a cofferdam, to the material, and to the use and preparation thereof.
    Type: Grant
    Filed: February 15, 1996
    Date of Patent: October 5, 1999
    Assignee: ROEKO GmbH & Co., Dentalerzeugnisse
    Inventor: Werner Mannschedel
  • Elastic-plastic element for filling root canals and a preparation method
    Patent number: 5925179
    Abstract: The invention relates to an elastic-plastic element comprising an isoprene-based matrix and at least one filler, the element being suitable for filling root canals of humans or animals and being characterised by calcium hydroxide, incorporated into the matrix, as filler. The invention relates also to a method of preparing the element according to the invention.
    Type: Grant
    Filed: July 17, 1997
    Date of Patent: July 20, 1999
    Assignee: Roeko GmbH + Co. Dentalerzeugnisse
    Inventor: Werner Mannschedel
  • Dispenser
    Patent number: 5713489
    Abstract: An apparatus for dispensing rod-like members that are stored in a parallelepipedal housing. The housing includes a base for carrying the rod-like members, with the base being movable against the force of one or more return springs. The base has a narrow side that extends at least partially through a discharge opening of the housing.
    Type: Grant
    Filed: December 29, 1995
    Date of Patent: February 3, 1998
    Assignee: ROEKO GmbH & Co. Dentalerzeugnisse
    Inventor: Ralf Loos