Sam Proof Medical

Angle Handpiece

Background Of The Curing Ligh

Background of the Curing Light

In the field of tooth restoration and repair, dental cavities are often filled and/or sealed with compounds that are photosensitive, either to visible and/or ultraviolet light. These compounds, commonly known as light-curable compounds, are placed within dental cavity preparations or onto dental surfaces and are cured when exposed to light from a dental curing light device.

Many light- curing devices are configured to be handheld devices. Some of them are constructed with fiber Optic Light wands designed for directing light from the light sources into the patient's mouth. The light sources maybe lamps, halogen bulbs or light-emitting diodes (LED).

Some light wands are not configured to capture all the light that is generated by the light sources, particularly light that is emitted from LEDs, which may be emitted at angles of up to about 120°.

One method for overcoming the limitations of light capture disclosed in the prior art is to improve the efficiency of the curing devices by placing the Light Source(s) of the Dental Handpieces devices at the tip of the light- curing devices, so that all of the light generated by the light source(s) may be directed towards a desired location within the patients' mouth. This, however, not only does not overcome the run time problem mentioned above, but at the same time, may create another problem of having the light source being too close to the patient's mouth, causing discomfort to the patient if the tip of the curing device happens to come in contact with the sensitive tissues of the patient's mouth.

In addition, multiple light sources used in making a Dental Equipment

capable of multiple wavelengths may further add to excessive heat generation problems if the light sources generate a wide spectrum of light, leading to more heat that needs to be diverted away from the dental autoclave sources. Even with light sources generating just the desired wavelength for composite curing, heat generation is still a problem. Consequently, elaborate cooling systems are needed to handle heat, possibly creating a large, heavy and expensive curing light.

Also, for devices with multiple wavelengths, if more light intensity is generated for one wavelength as compared to a second wavelength at the same power input, unless separate power supplies are used, or power is diverted away in some fashion, the excessive intensity at one wavelength may also lead to excessive heat at the point of generation. Accordingly, there remains a need for a new device that can solve the problems listed above.

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curing light dental handpieces dental equipment

How does a Friction Grip dental bur work?

Hey,

I'm wondering how a friction grip dental bur is kept in the instrument without coming out as it has no latches or anything else to grip onto. ex: http://store.talladium.com/catalog/703.jpg

separate question:
what's a contra-angle handpiece? More precisely, what does the contra-angle part mean?

You usually push on a button before you insert the bur. This causes the part that holds the bur to expand and the bur is inserted . When you let loose of the button it contracts and grasps the bur solidly. The bur is removed the same way. When you have a Contra Angle handpiece, instead of being straight. it is angled to allow you to position it and work in the mouth/ These are usually used by hygienists for cleaning and by dentist when using a low Speed Handpiece and uses Latch Type burs.

AquaStar Laser Er:Yag for dentistry by Creation Medical Laser