Ronald Lee Spencer

US Patent:

7954496, Jun 7, 2011

Filed:

Feb 8, 2007

Appl. No.:

11/672683

Inventors:

John M. Jansheski - Maryville TN, US
Ronald W. Spencer - Maryville TN, US

Assignee:

Dentek Oral Care, Inc. - Maryville TN

International Classification:

A61C 5/14
A61C 3/00
A61F 5/56

US Classification:

128859, 128848, 433 6

Abstract:

A custom-fitted dental appliance prevents grinding contact between upper and lower teeth of a wearer. The appliance includes a base member having a generally U-shaped horizontal portion with opposing posterior sections and an anterior section disposed between the posterior sections. The anterior section has an arcuate curvature substantially matching the curvature of the dental arch of most wearers. The base member has a vertical portion connected to a forward edge of the horizontal portion. The vertical portion of the base member has an arcuate curvature substantially following the curvature of the anterior section. The appliance includes over-molded anterior occlusal pads and molar pads that are attached to the upper surfaces of the base member. An over-molded anterior flange is attached to the vertical portion of the base member. The anterior occlusal pads, molar pads and anterior flange are formed from a thermoplastic material having a Vicat softening temperature below that of the base member.

US Patent:

20110067710, Mar 24, 2011

Filed:

Sep 23, 2009

Appl. No.:

12/565105

Inventors:

John M. Jansheski - Knoxville TN, US
Marco Wo - Providence RI, US
Daniel Nelsen - Warwick RI, US
Ronald W. Spencer - Knoxville TN, US

Assignee:

DenTek Oral Care Inc. - Maryville TN

International Classification:

A61C 5/14
B23P 17/04

US Classification:

128861, 29428

Abstract:

A dental appliance for preventing the grinding of teeth associated with bruxism and including a bite tray that includes opposing first and second posterior sections for positioning between upper and lower posterior teeth of the wearer and anterior section disposed between the first posterior section and the second posterior section. The anterior section of the bite tray can have an arcuate curvature and a bite surface adapted to reflect the prevalent shape of a glenoid fossa.

US Patent:

20110067711, Mar 24, 2011

Filed:

Sep 23, 2009

Appl. No.:

12/565107

Inventors:

John M. Jansheski - Knoxville TN, US
Marco Wo - Providence RI, US
Daniel Nelsen - Warwick RI, US
Ronald W. Spencer - Knoxville TN, US

Assignee:

DenTek Oral Care Inc. - Maryville TN

International Classification:

A61C 5/14
B23P 17/04

US Classification:

128861, 29428

Abstract:

A dental appliance for preventing the teeth grinding associated with bruxism that includes a bite tray having opposing first and second posterior sections for positioning between upper and lower posterior teeth of the wearer and an anterior section disposed between the first and second posterior sections. The posterior sections can include a concave curvilinear surface, a convex curvilinear surface, and a tangential portion disposed between the concave curvilinear surface and the convex curvilinear surface that is adapted to reflect the curve of Wilson as found in a prevalent occlusal alignment.