MICHAEL THOMAS BRENNAN, DDS
Dentist at Abbey Pl, Charlotte, NC

License number
North Carolina 7254
Category
Dentist
Type
Dentist
Address
Address
1601 Abbey Pl SUITE 220, Charlotte, NC 28209
Phone
(704) 512-2110
(704) 512-2115 (Fax)

Professional information

Michael T Brennan Photo 1

Dr. Michael T Brennan, Charlotte NC - DDS (Doctor of Dental Surgery)

Specialties:
Dentistry
Address:
Charlotte Office
1000 Blythe Blvd, Charlotte 28203
(704) 355-3181 (Phone), (704) 355-3039 (Fax)
1608 Scott Ave, Charlotte 28203
(704) 355-4841 (Phone), (704) 355-5301 (Fax)
Languages:
English


Michael Brennan Photo 2

Erythema Measuring Device And Method

US Patent:
7477925, Jan 13, 2009
Filed:
Oct 8, 2003
Appl. No.:
10/681722
Inventors:
Peter B. Lockhart - Charlotte NC, US
Robert Splinter - Huntersville NC, US
Michael T. Brennan - Charlotte NC, US
Philip C. Fox - Cabin John MD, US
Assignee:
Charlotte-Mecklenburg Hospital Authority - Charlotte NC
International Classification:
A61B 5/05, A61B 8/00, A61B 8/12, A61B 8/14
US Classification:
600407, 600427, 600437, 600438, 600442, 600340, 600473, 600475, 600478, 606 25, 433 29, 433 72
Abstract:
An erythema meter includes a probe, a light source of one or more specific probing and reference wavelengths, and an acoustic detector which determines the level of erythema present in the dental pulp chamber of a tooth. The probing and reference wavelengths are delivered in pulsed or amplitude modulated fashion through the probe, thereby permitting electronic identification and filtering of the received data. The absorption of the light wave raises the temperature of the material in the tooth and causes it to expand, thus creating tiny shockwaves which are picked up with the acoustic detector, revealing information on the location of blood and the quantity of blood inside the tooth. The erythema meter accurately measures the erythema, or inflammation, within the tooth in a qualitative and quantitative manner.