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Destination Tomorrow - DT2 - Ultrasonic Probe

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Subido el 28 de mayo de 2007 por EducaMadrid

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NASA Destination Tomorrow Segment describing the new tools that NASA scientists have designed, including the ultrasonic probe, to make dentist visits more pleasant.

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When you hear the word dentist, what word immediately comes to your mind? 00:00:00
Pain. 00:00:04
Unfortunately, pain and dentistry have always been synonymous with each other. 00:00:05
Throughout history, dentists and engineers have attempted to make dentistry more comfortable 00:00:09
by making tools and equipment more patient-friendly. 00:00:14
Now, NASA and its research partners have made pain-free dentistry a reality. 00:00:17
Jennifer Cortes examines how a new dental instrument, which was originally designed at NASA, 00:00:21
will finally make a trip to the dentist a painless experience. 00:00:26
Have you ever had this experience at your dentist? 00:00:39
It seems most people do not like to visit their dentist regularly. 00:00:41
Why? Pain. 00:00:45
To some people, the sight of dental instruments often invokes feelings of anguish and fear. 00:00:47
In fact, most dental instruments are not pleasing to the eye or to your mouth. 00:00:53
Until now. 00:00:58
NASA and its partners have developed an instrument that will help keep periodontal disease, 00:01:00
which is the leading cause of tooth loss in adults, in check. 00:01:04
This technology was originally designed to help detect cracks in airplanes, 00:01:07
but is now currently being used to design and manufacture a revolutionary dental instrument 00:01:11
called the Ultrasonographic Periodontal Probe. 00:01:17
The technology that's in the probe is ultrasonics. 00:01:20
These are the sound waves that we use to probe inside materials, such as the aircraft wings. 00:01:23
Ultrasonics is very high-frequency sound. 00:01:30
We at NASA use high-frequency sound to actually look inside materials. 00:01:34
We like to be able to assess the health of a material, 00:01:39
just like a physician would assess the health of a person. 00:01:43
When you look with ultrasound inside a material, you can find defects. 00:01:47
Defects such as internal damage. 00:01:52
Defects such as corrosion that would lead to a loss of strength of a material 00:01:56
that might cause a mission failure. 00:02:02
Now, how did you discover the specific problems that the probe solves? 00:02:04
The specific problem was actually discovered while we were trying to assess the integrity of aircraft. 00:02:08
Ultrasonics could characterize the desponds and microcracking that occurred near rivets on aircraft. 00:02:15
That same ultrasonics could be used to find desponds between the teeth and the gums. 00:02:22
In other words, periodontal disease. 00:02:29
Periodontal disease is an infection of the tissues that help anchor your teeth. 00:02:31
If left untreated, it can lead to tooth and bone loss. 00:02:35
Currently, the most widely performed method to measure periodontal disease is not the most comfortable. 00:02:38
It involves the insertion of a small, blunt probe between your tooth and gum 00:02:44
to measure the depth of the periodontal pocket. 00:02:49
This process is highly invasive, uncomfortable, and inconsistent. 00:02:51
This new instrument, developed by NASA Langley and its partners, 00:02:56
uses ultrasonic sound waves that interact with your teeth and map the periodontal pocket. 00:02:59
NASA works very closely with medical people during the technology transfer 00:03:05
that allows us to take what we have learned in studying materials 00:03:11
and apply it to materials that are human tissue. 00:03:15
We've had many people contribute to its success. 00:03:19
One of those individuals is John Companion. 00:03:22
John worked at NASA Langley Research Center for 27 years 00:03:25
and now works in the Applied Science Department at the College of William and Mary. 00:03:28
We met up with John at the Dental Hygiene Research Center at Old Dominion University. 00:03:32
The new probe simply touches the surface of the gum and slides along, 00:03:37
and the only coupling between the gum and the probe is just water. 00:03:42
So it's totally non-invasive, doesn't hurt at all, should provide more information 00:03:46
because of the way the information is gathered, and it should be faster. 00:03:52
The problem that you have with the current technology is one, obviously, is it's highly invasive, 00:03:57
and this hurts. Ultrasound doesn't. 00:04:03
No sensation, no penetration, they simply run it just along the edge of the gum 00:04:06
and you get a nice little image on the screen of a computer that shows you a map. 00:04:12
All the information retrieved by the probe can be archived on a computer. 00:04:17
A physician can then compare real-time data and past data to diagnose the condition of the patient. 00:04:21
And the nice thing that dentists like about this is they can show the map to the patient 00:04:28
so he can actually see what's going on in his gum. 00:04:34
And, of course, if you can evaluate the disease, you can also evaluate the treatment. 00:04:37
So when they start treating it, you can go back and you can check on it and see, 00:04:42
is this particular treatment doing any good? Do we need to modify it? 00:04:46
Do we need to do something different here? 00:04:49
And because this will all be computerized, you only need one person to do it. 00:04:51
Right now you have to have one person to take the measurement, one person to write down the measurement. 00:04:55
There's time savings, there's money savings. 00:04:59
The patients like it. I liked it. 00:05:02
I've actually used myself as a guinea pig. 00:05:05
I've had all three types of probing done by several different dentists now. 00:05:07
And let me tell you, the ultrasound is the only way to go. 00:05:12
The use of ultrasound in dental diagnostics provides an alternative approach to conventional probing. 00:05:15
Patient discomfort and the need for drugs like Novocain are virtually eliminated. 00:05:21
This technology could eventually touch every person who visits the dentist regularly. 00:05:25
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Idioma/s:
en
Niveles educativos:
▼ Mostrar / ocultar niveles
      • Nivel Intermedio
Autor/es:
NASA LaRC Office of Education
Subido por:
EducaMadrid
Licencia:
Reconocimiento - No comercial - Sin obra derivada
Visualizaciones:
421
Fecha:
28 de mayo de 2007 - 17:04
Visibilidad:
Público
Enlace Relacionado:
NASAs center for distance learning
Duración:
05′ 31″
Relación de aspecto:
4:3 Hasta 2009 fue el estándar utilizado en la televisión PAL; muchas pantallas de ordenador y televisores usan este estándar, erróneamente llamado cuadrado, cuando en la realidad es rectangular o wide.
Resolución:
480x360 píxeles
Tamaño:
32.14 MBytes

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