Patents Assigned to Idex Dental Sciences, Inc.
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Patent number: 6536628Abstract: The present invention relates to improved dental compositions and methods for bleaching teeth. More specifically, this invention is directed towards hydrogen peroxide-containing compounds that are maintained at a substantially constant pH range of 6.0-10.0 during the tooth-bleaching procedure in the presence of a calcium chelating agent.Type: GrantFiled: October 31, 2001Date of Patent: March 25, 2003Assignees: Idex Dental Sciences, Inc.Inventor: R. Eric Montgomery
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Patent number: 6514543Abstract: The present invention relates to improved dental compositions and methods for bleaching teeth. More specifically, this invention is directed towards hydrogen peroxide-containing compounds that are maintained at a substantially constant pH range of 6.0-10.0 during the tooth-bleaching procedure in the presence of a calcium chelating agent.Type: GrantFiled: October 31, 2001Date of Patent: February 4, 2003Assignees: Idex Dental Sciences, Inc.Inventor: Robert Eric Montgomery
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Patent number: 6488914Abstract: The present invention relates to improved dental compositions and methods for bleaching teeth. More specifically, this invention is directed towards hydrogen peroxide-containing compounds that are maintained at a substantially constant pH range of 6.0-10.0 during the tooth-bleaching procedure in the presence of a calcium chelating agent.Type: GrantFiled: October 31, 2001Date of Patent: December 3, 2002Assignees: Idex Dental Science, Inc.Inventor: R. Eric Montgomery
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Patent number: 6479037Abstract: A composition having an effective dosage of chlorine dioxide for causing a visible change in the whiteness of a tooth surface is disclosed. The composition includes a first formulation having a chlorine dioxide precursor and a second formulation having an acidulant capable of generating chlorine dioxide upon contact with the precursor. Upon admixture of the first and second formulations to produce chlorine dioxide, the composition has a pH in the range of from about 3.0 to about 4.5. To whiten teeth, the first and second formulations may be mixed with one another prior to application of the resulting mixture to the teeth. Alternatively, one of the first and second formulations may initially be applied to the teeth prior to the application of the remaining formulation. The inventive composition is formulated to cause a visible change in the whiteness of a tooth surface in a relatively short period of time.Type: GrantFiled: August 30, 1999Date of Patent: November 12, 2002Assignee: IDEX Dental Sciences, Inc.Inventor: R. Eric Montgomery
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Publication number: 20020131937Abstract: The present invention relates to improved dental compositions and methods for bleaching teeth. More specifically, this invention is directed towards hydrogen peroxide-containing compounds that are maintained at a substantially constant pH range of 6.0-10.0 during the tooth-bleaching procedure in the presence of a calcium chelating agent.Type: ApplicationFiled: January 17, 2002Publication date: September 19, 2002Applicant: R. Eric Montgomery and Idex Dental Sciences, Inc.Inventor: R. Eric Montgomery
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Patent number: 6331292Abstract: The present invention relates to improved dental compositions and methods for bleaching teeth. More specifically, this invention is directed towards hydrogen peroxide-containing compounds that are maintained at a substantially constant pH range of 6.0-10.0 during the tooth-bleaching procedure in the presence of a calcium chelating agent.Type: GrantFiled: November 16, 1998Date of Patent: December 18, 2001Assignees: Idex Dental Sciences, Inc.Inventor: R. Eric Montgomery
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Patent number: 6322773Abstract: The present invention relates to improved dental compositions and methods for bleaching teeth. More specifically, this invention is directed towards hydrogen peroxide-containing compounds that are maintained at a substantially constant pH range of 6.0-10.0 during the tooth-bleaching procedure in the presence of a calcium chelating agent.Type: GrantFiled: August 13, 1999Date of Patent: November 27, 2001Assignees: Idex Dental Sciences, Inc.Inventor: R. Eric Montgomery
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Patent number: 6312670Abstract: The present invention relates to improved dental compositions and methods for bleaching teeth. More specifically, this invention is directed towards hydrogen peroxide-containing compounds that are maintained at a substantially constant pH range of 6.0-10.0 during the tooth-bleaching procedure in the presence of a calcium chelating agent.Type: GrantFiled: April 2, 1998Date of Patent: November 6, 2001Assignees: R. Eric Montgomery, Idex Dental Sciences, Inc.Inventor: Robert Eric Montgomery
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Patent number: 5944528Abstract: A composition having an effective dosage of chlorine dioxide for causing a visible change in the whiteness of a tooth surface is disclosed. The composition includes a first formulation having a chlorine dioxide precursor and a second formulation having an acidulant capable of generating chlorine dioxide upon contact with the precursor. Upon admixture of the first and second formulations to produce chlorine dioxide, the composition has a pH in the range of from about 3.0 to about 4.5. To whiten teeth, the first and second formulations may be mixed with one another prior to application of the resulting mixture to the teeth. Alternatively, one of the first and second formulations may initially be applied to the teeth prior to the application of the remaining formulation. The inventive composition is formulated to cause a visible change in the whiteness of a tooth surface in a relatively short period of time.Type: GrantFiled: July 28, 1997Date of Patent: August 31, 1999Assignee: IDEX Dental Sciences, Inc.Inventor: R. Eric Montgomery
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Patent number: 5922307Abstract: The present invention relates to improved dental compositions and methods for bleaching teeth. More specifically, this invention is directed towards hydrogen peroxide-containing compounds that are maintained at a substantially constant pH range of 6.0-10.0 during the tooth-bleaching procedure in the presence of a calcium chelating agent.Type: GrantFiled: September 25, 1996Date of Patent: July 13, 1999Assignees: R. Eric Montgomery, Idex Dental Sciences, Inc.Inventor: Robert Eric Montgomery