RU2286719C1 - Method for detecting deposits of dental covering in patients with bridgework dentures - Google Patents

Abstract

FIELD: medicine, stomatology.

SUBSTANCE: it is necessary to determine the quantity of dental covering according to dyestuff intensity by a 5-point scale. Bridgework denture should be dyed with certain 0.1%-rhodamine solution. The quantity of dental deposits should be detected due to ultraviolet light spectrum of about 300-400 nm. The innovation enables to detect both the quantity and the quality of dental deposits and evaluate the index of oral hygiene in patients with bridge work dentures, provides dyeing picture in ultraviolet light only and requires no additional washing.

EFFECT: higher accuracy and efficiency of detection.

1 cl, 3 dwg

Description

The invention relates to medicine, namely to orthopedic dentistry.

In patients with removable and fixed prostheses, diseases such as gingivitis, periodontitis, periodontal disease, stomatitis are much more common. The presence in the oral cavity of removable or non-removable dentures creates additional favorable conditions for the deposition of soft plaque and significantly impairs toothbrushing. Underestimating or ignoring the importance of oral hygiene in the general complex of preventive measures often negates medical and wellness procedures. The poor hygiene of the oral cavity leads to complications of dental diseases, to their more acute manifestation, and also reduces the shelf life of prostheses, on which deposits form faster than on the teeth.

One of the criteria for evaluating oral hygiene is an indicator that informs about the size of the surface of the tooth crown covered with plaque. Since dental deposits are usually colorless, they are determined using dyes (Bismarck brown, a solution of basic fuchsin red, Lugol's solution, fluorescent sodium solution, etc.)

To identify dental deposits in the evaluation of oral hygiene in modern dentistry, objective indicators (indices) are used that characterize the quality and quantity of dental deposits. However, the number of assessment methods, which are based on a different number of teeth from different functional groups, up to staining all teeth on both sides or collecting and weighing plaque around individual teeth, indicates the relevance of the problem and the imperfection of existing methods.

As a prototype, the authors propose a method for determining the hygiene index of Fedorov-Volodkina // E.M. Melnichenko "Prevention of dental diseases", Minsk, "Higher School.", 1990, pp. 3-17.

It is determined by the color intensity of the vestibular surface of the six lower frontal teeth by applying iodine-iodide-potassium solution (Schiller-Pisarev liquid).

The calculation is carried out according to the formula:

To _Wed - hygiene index;

ΣK _n is the total hygiene index for each of the six teeth;

n is the number of teeth.

Staining the entire surface of the crown is estimated at 5 points, 3/4 of the surface - 4, 1/2 of the surface - 3, 1/4 of the surface - 2 points. In the absence of staining put 1 point. The indicator is evaluated as follows: good index, satisfactory, unsatisfactory, poor, very poor.

However, the proposed method has several disadvantages:

- determination of the quality and quantity of dental plaque, evaluation of the hygiene index was carried out only on their own teeth;

- the use of well-known dyes is impossible when determining the amount of dental deposits on bridges, since these solutions are difficult to wash off from the surface of the dentures. The authors suggest a method for determining plaque deposits in patients with bridges using the fluorescent dye rhodamine 6G.

Rhodamine 6G is a luminescent dye whose glow is excited by radiant energy, absorbing UV rays, rhodamine emits ultraviolet light. Aqueous solutions of rhodamine have a maximum absorption at 555 and 517 mmq; they are used to detect and determine Ca, Zn, tungstates and other elements // Brief Chemical Encyclopedia, M., “Soviet Encyclopedia”, 1967, pp. 450-451 //.

The authors determined deposits of plaque on bridges made of cermets, metal plastics, cobalt-chrome alloy, titanium and a stamped crown (FIGS. 2 and 3).

The method is as follows. Rhodamine 6G is diluted in water in a ratio of 0.1 g of powdered rhodamine 6G per 100 ml of water. The resulting solution is applied with a brush to the vestibular surface of the bridge and illuminated with UV rays. When a bridge treated with a 0.1% aqueous solution of rhodamine is irradiated in a darkened room with ultraviolet light of 300-400 nm (a positive decision to grant a patent for the utility model “A device for determining the fluorescent effect of Ervandyan teeth”, application number 2005117793/22) determines the amount of deposits on the bridge (Fig. No. 1) and evaluate them according to a 5-point system: the absence of deposits - 1 point, 1/3 of the surface - 2 points, 2/3 of the surface - 3 points, more than 2/3 of the surface - 4 points, the whole tooth - 5 points.

Certain advantages of the proposed method are:

- clinical observations have established that the most susceptible to the formation of dental deposits are bridges made of metal-plastic, which will allow to take preventive measures to clean them and expire;

- identification of dental deposits on bridges allows you to prevent the occurrence of diseases such as gingivitis, periodontitis, periodontitis, stomatitis;

- extend the life of prostheses;

- fluorescent dye rhodamine 6G is visible only in ultraviolet light;

- does not require additional flushing, because removed by oral fluid;

- the method allows to determine the quality and quantity of dental plaque and evaluate the oral hygiene index in patients with bridges and implement adequate preventive or therapeutic measures.

Claims (2)

1. A method for determining plaque deposits in patients with bridges, including determining the amount of plaque by color intensity on a 5-point scale, characterized in that the bridge is stained with 0.1% rhodamine 6G solution, and the amount of dental plaque is determined using ultraviolet light 300-400 nm. 2. The method according to claim 1, characterized in that an aqueous solution of rhodamine is prepared in a ratio of 0.1 g of rhodamine powder 6G per 100 ml of water.

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