Thermographic evolution of bone temperature evolution

• Type: Article in International Scientific Journal
• Date: 2012

Authors

Ribeiro T.P. (Author) Other; Silva A. (Author) FEUP; Gabriel J. (Author) Other

Journal

Title: Thermology International

Vol. 22

Pages: 138-142

ISSN: 1560-604X

Publisher: European Association of Thermology

Indexing

Scopus - 0 Citations

Other information

Authenticus ID: P-00W-01X

Abstract (EN): Dental implants present very high long term success rates due to, among other factors, an adequate and atraumatic implant bed preparation or osteotomy. Osteotomy is a surgical procedure of bone removal where strong inflammatory reactions and trauma are present. During bone drilling, if the temperature reaches 47oC or more for 1 minute, irreversible osteonecrosis will occur, depending on its extension on temperature magnitude and time of exposure to the thermal agent. To simulate the human jaw, fresh porcine femora of uniform density were used. To measure the temperature during bone drilling, a FLIR A325 thermal camera was used with a close-up lenses (25¿m/pixel), recording one image per second. Different parameters regarding drilling speed, drilling depth, pressure applied to the drill and continuous vs intermittent drilling can induce different bone temperatures. In bone like structures a simple thermal camera is not adequate to measure temperature changes since these are extremely high and localized in very small portions of material. Therefore the use of a close-up lenses is crucial.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4