Gutta-percha point cutter

Abstract

A gutta-percha point cutter comprises a handle and a first working end. The handle is a round rod with the length 8-12 cm and the diameter 5-6 mm, and the first working end is fixed at one end of the handle; the first working end comprises a first long handle, a first heat storage portion, a short handle and a cutting head; the back end of the first long handle is fixed at one end of the handle, the length of the first long handle is 1-3 cm, and the diameter of the first long handle is 1.5-2.5 mm; the first heat storage portion is fixed with the front end of the first long handle, the back end of the short handle is connected with the first heat storage portion, and the included angle of the short handle and the first heat storage portion is 125-145 degrees; the cutting head is in the shape of a disc, the diameter of the cutting head is 1.6-2 mm, the thickness of the cutting head is 1.3-1.7 mm, and the upper surface of the cutting head is fixed with the front end of the short handle. The gutta-percha point cutter is simple in structure, convenient to manufacture, and capable of shortening the operating time, improving the treating efficiency and saving the cost.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a gutta-percha tip cutter. Background technique [0002] There are 32 teeth symmetrically distributed in the upper, lower, left, and right sections of the oral cavity of an adult, and each section has 8 teeth, of which No. 1-3 teeth are front teeth. During root canal treatment, there is usually only one root canal opening from the tongue surface to the root canal. , No. 4-5 teeth are premolars, generally 1 to 2 root canal openings, and the root canal openings are generally distributed buccolingually, teeth No. 6-8 are molars, and there are 3-4 root canals. The root canal treatment of teeth No. 4-8 is from the occlusal surface opening to the pulp chamber. The root canal opening is located at the bottom of the pulp chamber. The cutting site of the gutta-percha tip is at the root canal opening that is flush with the bottom of the pulp chamber. The gutta-percha tip is permanently f...

AI Technical Summary

Problems solved by technology

The traditional method uses an expanding needle to expand the root of the tooth by hand. The root canal is relatively thin. It can be filled with ordinary gutta-percha points. Usually, a few to a dozen gutta-percha points can be filled. After the root canal is filled, it is necessary to cut off the excess tooth Glue tip, before the electric gutta-percha tip cutter, there was no dedicated gutta-percha tip cutter in the department of stomatology. The small round head of the cement filler is commonly used to heat for tens of seconds and then burn the root canal mouth to cut off the gutta-percha tip. Frequently asked questions: Due to the rapid loss of heat, the gutta-percha tips are not completely cut off and the small round head of the obturator will come into contact with the gutta-percha tips in a large area, and the gutta-percha tips in the root canal will be brought out, or it will take several times to cut off dozens of gutta-percha tips

However, the penetration rate of electric gutta-percha tip cutters is very low due to cost and other reasons.

[0004] In recent years, multi-functional electric motors in stomatology are widely used in root canal treatment in oral medicine. Using the motor to expand the root canal, the taper is larger than that of the manual expansion needle, and the gutta-percha tip used with it is thicker than the traditional one. The root canal is harder than the traditional gutta-percha tip and the cement filling device is not easy to cut off, and the problems of bringing the gutta-percha tip out of the root canal are more common

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