45
Figure 3. The thermal image of a tooth during drilling without cooling
Figure 2:
A.gambiae on an untreated heat source.
two common types of mosquitos - A. aegypti and A. gambiae. To do so, they fi rst tried to chronicle mosquito behaviour using a high-defi nition visual camera in night-vision mode, but the effort failed. The camera couldn’t provide the precision necessary in that light-challenged environment to produce an accurate mosquito count. Instead they turned to an IR camera.
“We needed a camera that could see in the dark - so we went with infrared,” explained Reichert.
The difference was night and day.
The IR camera and accompanying software enabled the researchers to record infrared images of mosquito behaviour at 388 frames per second with a high degree of accuracy. The IR system also allowed them to freeze the insect’s motion to enable an accurate count.
“A lot of times these mosquitos will climb on each other and it will get crowded, so it’s hard to count them. But with a camera like this it was really easy. They just stood right out,” concluded Reichert.
Next Generation Dental Drill Testing
Advances in reconstructive dentistry are giving patients more choices and more comfortable, sustainable, and cosmetically pleasing outcomes. Yet many procedures, including the making of implant posts, require drilling. Drilling produces not only heat, but also potentially dangerous spikes in temperature.
Understanding and monitoring temperature swings in dental procedures is critically important, because temperatures above 56 to 60°C harm bone tissue, and temperatures exceeding 47°C on the surface of the dental root can cause damage to surrounding tissues.
Doctors Joanna Bozyk and Janusz Kleinrok with the Medical University of Lublin in Poland teamed up with thermographers to examine the temperature impacts of various drilling procedures involved in developing posts. Essential to their study was the use of IR cameras in a controlled lab setting. The thermal imaging cameras were used to closely monitor and accurately measure thermal transients, i.e., rapid temperature
Conclusion
When the frontier of medical discovery lies in places that are hard to see or reach, gaining accurate temperature measurements can be extremely diffi cult. The versatility, affordability, and high performance of IR cameras are proving a powerful remedy to this problem, improving upon legacy temperature measurement approaches while helping medical researchers discover and innovate. Embracing these increasingly nimble measurement tools, the medical research community today is bringing IR cameras to the forefront of discovery and insight, unlocking tomorrow’s breakthrough treatments.
The Author
Chris Bainter is Business Development Manager, R&D/Science Solutions at FLIR Systems, Inc.
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Figure 4. The thermal image of a tooth during drilling with water cooling
changes, in the drilling process and across variables including the drill’s rotational speed, the type and size of dental drill used, and type of cooling method employed.
In reviewing the data, it is clear IR cameras and the software that supports them give researchers and dental-device manufacturers the ability to see, chart, and understand with precision the critical temperature changes that occur during drilling. They’re getting the correct measurement in exactly the right place - something that is difficult for legacy temperature measurement approaches. This capability gives dental-device manufacturers concrete evidence to support claims that their products can and will perform within safety specifications, while offering the professionals who use them confidence they will deliver safe and healthy outcomes to their patients.
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