Patents Assigned to Kerrhawe SA
-
Patent number: 9452027Abstract: A vibrating applicator is provided for applying a dental composite material onto a tooth. The applicator has an elongated body and a tip that is coupled to the elongated body to apply the dental composite material onto the tooth. The applicator further has a vibrating apparatus for vibrating the tip and a sensor for sensing a condition of the dental composite material. A controller is operatively coupled to the vibrating apparatus and to the sensor and is configured to automatically vary an output frequency of the vibrating apparatus in response to the condition sensed by the sensor.Type: GrantFiled: December 10, 2009Date of Patent: September 27, 2016Assignee: KerrHawe SAInventors: Beat Kilcher, Marco Da Rold
-
Patent number: 8992224Abstract: The method of curing a dental composite includes forming a composite filling in a cavity of a tooth surface by filling the cavity with an uncured composite and determining the geometry of the composite filling, including locations of interfaces between the composite filling and the tooth surface. The method further includes calculating a predetermined polymerization pattern for minimizing shrinkage stress at the interfaces, based on the geometry of the composite filling, and scanning a focused laser beam across the composite filling in accordance with the predetermined polymerization pattern to selectively and progressively cure the composite filling.Type: GrantFiled: March 15, 2013Date of Patent: March 31, 2015Assignee: KerrHawe SAInventors: Beat Kilcher, Vahik Krikorian
-
Publication number: 20140106297Abstract: A dental bur and method for removing a soft deposit from a tooth or an implant, the bur having a shank adapted to be connected to a rotary device. A head extends from the shank. The head has a material hardness adapted to remove soft deposits attached to the tooth but deflect against the tooth. Furthermore, the head is sized for insertion into a periodontal pocket adjacent to the tooth without surgery. Thus, the dental bur may be rotated against the tooth for removing the soft deposits but deflect and/or wear against the tooth for preventing damage to the tooth.Type: ApplicationFiled: March 15, 2013Publication date: April 17, 2014Applicants: University of Zurich, KerrHawe SAInventors: Patrick R. Schmidlin, Beat Kilcher, Marco Da Rold
-
Patent number: 8518380Abstract: A prophylactic (prophy) paste composition comprising about 40 percent by weight to about 55 percent by weight expanded perlite comprising perlite granules in the range of about 20 ?m to about 70 ?m and floaters. The prophy paste composition further comprises no more than 5 percent by weight of a surfactant, and greater than about 10 percent by weight water. In some embodiments, the inventive paste also contains a humectant and optionally, may contain coloring agents, preservative agents, alcohol, flavoring agents, viscosity increasing agents, and sodium fluoride. The present invention also provides methods for controlling the floater content of the expanded perlite used in the inventive paste and methods of packaging the expanded perlite paste composition in a tube. The present invention also provides a prophy paste product comprising the inventive prophy paste contained within a squeezable tube.Type: GrantFiled: December 5, 2007Date of Patent: August 27, 2013Assignee: KerrHawe SAInventors: Patrizia Balmelli, Beat Kilcher
-
Patent number: 8011924Abstract: The present invention relates to the affixation of dental dams and Class III matrixes utilized in conservative dentistry and oral surgery. In particular, the present invention relates to a device and method for retaining and stabilizing a dental dam or Class III matrix, or other device, in the mouth of the patient, which can be clamped between two adjacent teeth.Type: GrantFiled: October 24, 2007Date of Patent: September 6, 2011Assignee: KerrHawe SAInventors: Beat Kilcher, Marco Da Rold
-
Patent number: 7648361Abstract: A dental dam clamp comprises first and second spaced, opposing jaws and respective first and second tooth engaging portions on the jaws. The first and second tooth engaging portions are positioned in confronting relation to one another and are biased toward one another by a resilient member when the jaws are moved outwardly from a free state defining a first position of the jaws. In one embodiment, first ends of the tooth engaging portions are spaced closer together than the second ends of the tooth engaging portions when the jaws are in the first position. The spacing between the first ends of the tooth engaging portions may be substantially the same as the spacing between the second ends of the tooth engaging portions when the jaws are moved outwardly to a second position. In another embodiment, the tooth engaging portions include friction-increasing surfaces to help secure the clamp to a tooth.Type: GrantFiled: August 20, 2007Date of Patent: January 19, 2010Assignee: KerrHawe SAInventors: Beat Kilcher, Marco DaRold, Valerie Boscherini-DaSilva, Luca Pedrinis
-
Patent number: 7331788Abstract: The present invention relates to the affixation of dental dams and Class III matrixes utilized in conservative dentistry and oral surgery. In particular, the present invention relates to a device and method for retaining and stabilizing a dental dam or Class III matrix, or other device, in the mouth of the patient, which can be clamped between 2 adjacent teeth.Type: GrantFiled: December 16, 2004Date of Patent: February 19, 2008Assignee: KerrHawe SAInventors: Beat Kilcher, Marco Da Rold
-
Patent number: 7195395Abstract: A dental sensor clamp has a clamp body with a connector on one end for connecting the sensor clamp to a bite plate. A clamp body opposite end has a fixed stop locatable adjacent an apical area of a tooth. A clamping slide is mounted within a thickness of the clamp body, and the clamping slide supports a member providing a resilient clamping force upon the member being moved against the sensor and the fixed stop. The dental sensor clamp reliably secures an imaging sensor adjacent the apical area of the tooth.Type: GrantFiled: February 28, 2005Date of Patent: March 27, 2007Assignee: KerrHawe SAInventors: Antony Quarry, Beat Kilcher, Marco Da Rold, Rolf M. Klauser
-
Patent number: 7077652Abstract: The cheek and lip retractor for dentistry comprises respective cheek portions and lip portions for the upper and lower lip, the lip portions comprising a lip shield and mucous pads which are separate and spaced apart from the lip shield, the cheek portions and lip portions being connected to each other by flexible connecting elements, and the connecting elements being disposed between the lip shield and the mucous pad. Such a retractor allows a largely free treatment of the tooth portions to be treated and provides a comfortable fit for the patient.Type: GrantFiled: March 17, 2004Date of Patent: July 18, 2006Assignee: KerrHawe SAInventors: Beat Kilcher, Anthony Quarry
-
Publication number: 20060134579Abstract: The present invention relates to the affixation of dental dams and Class III matrixes utilized in conservative dentistry and oral surgery. In particular, the present invention relates to a device and method for retaining and stabilizing a dental dam or Class III matrix, or other device, in the mouth of the patient, which can be clamped between 2 adjacent teeth.Type: ApplicationFiled: December 16, 2004Publication date: June 22, 2006Applicant: KerrHawe SA of Via StrecceInventors: Beat Kilcher, Marco Da Rold
-
Publication number: 20050130099Abstract: A dental instrument with interchangeable roller tips for distributing restorative materials on a tooth surface quickly, precisely and homogeneously with little adherence of the restorative material to the instrument. The instrument has an elongate body with a handle portion and one or two working ends extending therefrom with a roller tip rotatably mounted on each working end. The roller tip may be removable from the working end, such that differently shaped tips may be used interchangeably during the restoration of the tooth, as necessary. The roller tip may rotate directly about the working end, or alternatively, a bushing or bearing may be rotatably mounted on the working end between the working end and the roller tip, such that the roller tip is rotatable on the working end by means of the rotatable bushing or bearing.Type: ApplicationFiled: December 15, 2003Publication date: June 16, 2005Applicant: KerrHawe SAInventors: Mario Besek, Beat Kilcher, Marco Rold
-
Patent number: 6905244Abstract: In the holder set for digital sensors for dentistry, the holders for each kind of radiograph such as periapical radiographs of front teeth (anterior teeth) and lateral teeth (posterior teeth), on one hand, and bitewing radiographs, on the other hand, can be used for all sensor formats, the sensors being seized in the respective holders in a self-centered manner by two arms independently of their format.Type: GrantFiled: September 26, 2003Date of Patent: June 14, 2005Assignee: Kerrhawe SAInventors: Beat Kilcher, Marco Da Rold
-
Publication number: 20040209225Abstract: The cheek and lip retractor for dentistry comprises respective cheek portions (7, 8) and lip portions (1, 2) for the upper and lower lip, said lip portions comprising a lip shield (3, 4) and mucosa pads (5, 6) which are separate and spaced apart from said lip shield, said cheek portions and lip portions being connected to each other by flexible connecting elements (9-12), and said connecting elements being disposed between said lip shield and said mucosa pad. Such a retractor allows a largely free treatment of the tooth portions to be treated and provides a comfortable fit for the patient.Type: ApplicationFiled: March 17, 2004Publication date: October 21, 2004Applicant: KerrHawe SAInventors: Beat Kilcher, Anthony Quarry
-
Publication number: 20040146831Abstract: A delivery system for administering a metered dose of dental sensitivity product to a tooth includes a reservoir sized to contain a volume of the dental sensitivity product and suited to dispensing the dental sensitivity product in small quantities while maintaining stability of the dental sensitivity product. The system further includes delivery structure in communication with the reservoir and configured to deliver the metered dose of dental sensitivity product. In an exemplary embodiment, the delivery structure includes a cannula and operates to deliver the dental sensitivity product as a spray to the affected tooth when actuated by a user.Type: ApplicationFiled: January 23, 2003Publication date: July 29, 2004Applicant: KerrHawe SAInventors: Lorenzo Balmelli, Patrizia Balmelli-Priori, Gert Ulrich Silber, Beat Kilcher
-
Publication number: 20040134002Abstract: The brush for use on a dental rotary hand piece comprises a bristle field in which the length of the bristles decreases from the external radius of the bristle field towards its center. A brush of this kind allows improved finishing, polishing, and cleaning of interdental spaces and fissures in the chewing surface.Type: ApplicationFiled: July 22, 2003Publication date: July 15, 2004Applicant: KerrHawe SAInventor: Stefan Zimmer
-
Patent number: 6761562Abstract: The interdental wedge is particularly intended for use in the insertion of approximal fillings of light-curing synthetic materials and consists of a combination of a wedge body and an underlying compressible sole comprising a rim which projects on both sides of the wedge body. The sole portion is preferably made of a thermoplastic elastomer and the wedge body of a translucent synthetic material. A wedge of this kind provides a strong spreading force, and the two rims are deformed when inserted, thereby ensuring a firm retention and a tight application of the matrix to the dental anatomy, and they form sealing lips in order to keep away the saliva from the treated area and to gently displace the papilla.Type: GrantFiled: April 25, 2002Date of Patent: July 13, 2004Assignee: KerrHawe SAInventor: Beat A. Von Weissenfluh
-
Publication number: 20040096040Abstract: In the holder set for digital sensors for dentistry, the holders for each kind of radiograph such as periapical radiographs of front teeth (anterior teeth) and lateral teeth (posterior teeth), on one hand, and bitewing radiographs, on the other hand, can be used for all sensor formats, the sensors being seized in the respective holders in a self-centered manner by two arms independently of their format.Type: ApplicationFiled: September 26, 2003Publication date: May 20, 2004Applicant: KerrHawe SAInventors: Beat Kilcher, Marco Da Rold
-
Publication number: 20040029073Abstract: A preferred rubber dam comprises a bag provided, at the locations situated above teeth when the rubber dam is applied in the mouth, with projections that are intended to be cut off. The projections with the resulting holes are closely fitted on the teeth to be treated in order to seal off the oral cavity.Type: ApplicationFiled: March 20, 2003Publication date: February 12, 2004Applicant: KerrHawe SAInventors: Beat Kilcher, Marco Da Rold, Felix Aschmann
-
Patent number: D611592Type: GrantFiled: March 5, 2009Date of Patent: March 9, 2010Assignee: KerrHawe SAInventors: Beat Kilcher, Marco Da Rold, Felix Aschmann
-
Patent number: D624998Type: GrantFiled: January 22, 2010Date of Patent: October 5, 2010Assignee: KerrHawe SAInventors: Beat Kilcher, Marco Da Rold, Felix Aschmann