Dentistry – Apparatus – Having motor or means to transmit motion from motor to tool
Patent
1997-12-12
1999-05-04
Lucchesi, Nicholas D.
Dentistry
Apparatus
Having motor or means to transmit motion from motor to tool
433118, A61C 107, A61C 303, A61C 308
Patent
active
058996931
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a dental working tip end piece and a dental tip for mounting the same. More particularly, to a dental working tip end piece which is disposable after being used for dental treatment such as tooth periphery treatment, tooth inside treatment, preventive measures, and polishing.
BACKGROUND ART
Dental calculus and dental plaque are main causes for periodontal diseases and dental caries. Therefore, the removal of dental calculus and dental plaque sticking to tooth surfaces and root surfaces as well as artificial repair prosthetic appliances and dental implants is the most important measure for treatment and prevention of dental diseases.
In such dental treatment, the removal of dental calculus and dental plaque on tooth surfaces, the debridement in pockets, and the detoxification of dental root surfaces for smoothening root surfaces, that is, dental plaque control, scaling, and root planing are important basic measures.
Incidentally, scaling means an operation for removing sticking matters such as dental plaque and dental calculus above and below the gingival margin. The root planing means an operation for smoothening dental root surfaces and removing destroyed cementum and dental calculus remaining and embedded in dental root surfaces to detoxify the contaminated dental root surfaces.
The above-mentioned scaling and root planing operations are usually performed by using a hand metallic scaler, especially a hand curette scaler. At present, this method is the most reliable one in the world. However, the scaling and root planing using a hand curette scaler require very high skill and are troublesome.
Also, the scaling and root planing are sometimes done by supplementarily using a treatment appliance such as an engine Roto sonic scaler, turbine air scaler, and ultrasonic scaler besides the method using a hand curette scaler.
Among these treatment appliances, the ultrasonic scaler is designed so that a dental tip of a predetermined shape is connected to an ultrasonic vibration source for generating ultrasonic waves of a predetermined frequency. The dental tip is integral from the proximal end thereof to the distal tip end, and the proximal end can be connected detachably to the aforesaid ultrasonic vibration source.
When the ultrasonic vibration source is operated in the ultrasonic wave zone, the ultrasonic vibrations are transmitted from the proximal end to the distal tip end. By pressing the distal tip end against a portion to be treated on a tooth surface, dental calculus etc. are ground and removed.
On this ultrasonic scaler, therefore, the aforesaid tip functions as a transmission medium for ultrasonic vibrations generated by the ultrasonic vibration source.
Dental treatment includes a variety of items such as the removal of matter sticking to teeth and artificial objects (artificial dental roots, artificial teeth, artificial filling repair prosthetic appliances such as inlay and amalgam, etc.), the removal of pathological portions, the grinding and polishing of surfaces, the cleaning, the treatment of root canals, and the destroying of salivary stones.
For the tip of the aforesaid ultrasonic scaler, therefore, special-purpose tips of a shape suitable for each kind of dental treatment are usually used so that the above listed dental treatments can be provided properly. For example, a tip of a complicated shape along a tooth surface for tooth periphery treatment, a tip for prevention, a tip for the enlargement and cleaning of the interior of a root canal, a tip for filling a root canal, a tip for treatment of an inverted root canal, etc. are available.
These tips are usually manufactured as integral ones using a metallic material with high corrosion resistance and wear resistance such as stainless steel. In particular, a dental tip manufactured of a hard metallic material is a very effective tip for dental treatment because it inhibits tip wear in use and also can efficiently remove the sticking matters such as dental calculus in a short period of time. On th
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Himeno Hiroshi
Himeno Kazuko
Hakusui Trading Co., Ltd
Himeno Kazuko
Lucchesi Nicholas D.
Satelec SA
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