RU36208U1 - Device for photopolymerization of dental restoration materials - Google Patents

Description

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Device for photopolymerization of dental restoration materials

The proposed utility model relates to the field of medicine, namely to dentistry and can be used when filling teeth with light-curing materials.

In 1977 light-cured composite materials appeared in dentistry. Composites polymerized under the influence of light are filled with a uniform consistency in the form of a paste; The polymerization of light-cured materials is carried out using special devices, which have a number of serious requirements, especially the power and intensity of radiation. Modern light-curing materials for polymerization require a powerful light beam with a wavelength of 450-500 nm (maximum radiation at a wavelength of 470 nm). The intensity of the light flux should be at least ZOOmW / cm. A decrease in intensity below this minimum leads to a sharp deterioration in the quality of photopolymerization of the material.

To bring the light flux directly to the tooth, special optical fibers of various diameters (from 1 to 10 mm) are used, the choice of which depends on the specific clinical situation.

A device for photopolymerization of dental restoration materials is known, selected as a prototype, comprising a housing consisting of a handle and a working part and a radiation source made in the form of a laser

LED (RF, Utility Model Certificate No. 18044, IPC a61C5 / 04, publ. Official Bulletin of Rospatent No. 14,2001, p.520).

In the known device, the radiation source is installed at the outlet of the housing, and is recessed in it.

However, according to the author of the proposed utility model, the known device does not always allow to achieve the most favorable conditions for the polymerization of light-curing composites, since the power of one LED is quite small. In addition, there is a loss of part of the light at the exit of the working part.

The objective of the utility model is to improve the quality of polymerization and increase ease of use.

The problem is achieved in that in the known device for the photopolymerization of dental restoration materials, comprising a housing consisting of a handle and a working part and a radiation source made in the form of a laser LED, the device further comprises a matrix, placed in the end of the working part, on which the source is rigidly fixed radiation projecting 2-3 mm beyond the housing, the radiation source consists of N laser LEDs, the central laser LED being perpendicular atritse, other LEDs located to the central laser diode angled handle 2 vypolpena angle 45-5 (f to the working part.

Figure 1 shows the proposed device.

Figure 2 shows the matrix (top view).

Fig. 3 shows the arrangement of the LEDs with respect to the central laser LED.

The proposed device for photopolymerization of dental restoration materials consists of a handle 1 and a working part 2. Source

: LCCM OI4 / radiation 3 is rigidly fixed to the matrix 4, which is located at the end of the working part of the device. The radiation source consists of N-LEDs and extends beyond the boundaries of the housing by 2-Zmm. Central laser LED. 5 (FIG. 2) is located perpendicular to the matrix 4, other LEDs 6 are located at an angle of 25 to the central laser LED (FIG. 3). The handle 1 is executed at an angle of 45-50 to the working part 2. The device can operate both from a constant power source and from a battery. This device uses 9 laser LEDs, although there may be more.

The device operates as follows.

When performing dental restoration work with the use of light-curing materials, the device is turned on, brought to the tooth to be restored, and necessary parts of the tooth are irradiated with visible light for 10-3 Osek.

The proposed device allows to obtain the following positive effect. The device gives an optimal wavelength of light of 470 nm for intensive splitting of the photosensitive substance - camphoroquine - the initiator of polymerization, thereby providing a high degree of polymerization in a short period of time.

Claims (1)

A device for photopolymerization of dental restoration materials, comprising a housing consisting of a handle and a working part with a radiation source in the form of a laser LED, characterized in that it further comprises a matrix located at the end of the working part, on which the radiation source protruding the body boundaries are 2-3 mm, the radiation source consists of N-laser LEDs, with the central laser LED located perpendicular to the matrix, others are located at an angle m 25 ° to the central laser light emitting diode, the handle is formed at an angle of 45-50 ° to the working part.