SU1593669A1 - Method of treating non-complicated caries - Google Patents

Abstract

This invention relates to medicine, in particular to dentistry. A method for the treatment of dental caries by exposure to laser radiation. To reduce the morbidity of the treatment and shorten the preparation time, a yttrium-aluminum garnet laser beam with neosin is applied at a wavelength of 2.94 μm, a pulse duration of 100-500 μs, a power of 0.5-1 J / force with a frequency of 1 Hz, a power density of 2 .10 4 +3.10 W / cm 2 for 3-30 s. The effect of treatment is explained by the coincidence of the applied wavelength with the spectral characteristics of the tissues of the tooth, which leads to the most complete absorption of radiation by the tissues and the evaporation of the latter. The application of the method allows to reduce the preparation time by 2-4 times and significantly reduce the invasiveness of treatment.

Description

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This invention relates to medicine, in particular to dentistry.

The purpose of the invention is to reduce trauma and shorten the preparation time.

The method is carried out as follows.

The hard tooth tissues are affected by pulsed laser radiation with a wavelength of 2.94 microns, a pulse duration of 100-500 ISS, a power of 0.5-1 J / imp. Pulse frequency of 1 Hz. With all these parameters observed, the power density is 2 Yu ± 3 -10 W / cm. The impact of a single laser pulse evaporates the hard tissues of a tooth to a depth of 35 microns, which allows for the rapid layer-by-layer removal of pathological tissues at a given area and depth, thereby ensuring a gentle preparation mode. Depending on the size

preparation cavity spent time was 3-30 s,

If necessary, the edges of the cavity are treated with a diamond (or carboroid head) and the filling material is laid. During the procedure, they offer the patient to rinse the mouth several times (after 5 pulses).

EXAMPLE 1 Patient B., 45, turned to the clinic with complaints about the presence of a carious cavity in the cervical area 1 1. Objectively: in the cervical area of small sizes, the cavities filled with softened dentine are sounding and percussion. Diagnosis: average caries 1 1. Treatment, Impulse, combined in one plane with. The optical axis of the red-light beam of the LG-75 laser was directed perpendicular to the frontal plane of the carious cavity (2-10 W / cm). The abdominal cleansing of the softened dentin 10 was performed.

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pulses with a duration of 100–500 μs, a carious bone trained after the treatment was observed by visual examination without pathologically changed tissues and without signs of fusing, with even walls 5 and bottom. The cavity is dry, clean, which excludes additional medical treatment (5 treatment in the form of washing the cavity with hydrogen peroxide solution, alcohol and drying with ether. At the bottom of the cavity there is a 10-layer phosphate-cement sealant and a permanent seal of noracryl.

EXAMPLE 2. Patient K., 32 years old, turned to a polyclinic with the aim of rehabilitating the oral cavity with complaints of a defect. Objectively: on the cervical surface 5 of the tooth there is a carious cavity of medium size, filled with softened dentine and food debris. The probing is painful due to the enamel-dentin joint, the reaction to cold is negative, the percussion is painless. EOM-6 uA. Diagnosis: average caries 5. Treatment. The preparation of the carious cavity was carried out, 25 removal of softened dentin by 20 pulses. Every 5 impulses, patients were asked to rinse their mouths with an antiseptic solution. The cavity was dried, a phosphate-cement strip was applied, and a evikrol filling was applied.

Froze Ill A., 48 years old, appealed to the clinic with a complaint about the presence of

cavities. Objectively: in the cervical area 3 there is a carious cavity, of small size, filled with softened pigmented dentin. Sounding is painful on the enamel-dentin compound. The reaction to the cold is negative, the percussion is painless. EOM 2-4 µa. Diagnosis: average caries 3. Treatment. Dissection of the cavity and removal of softened dentin was carried out in 15 pulses. Every 5 impulses the patient was asked to rinse his mouth. The cavity is dried, the laying of phosphate-cement, a seal of silicon.

As a result of applying the method, it was possible to achieve a shortening of the preparation time by 2-4 times and significantly reduce the invasiveness (damage to healthy parts of the tooth).

Claims (1)

The method of treatment of uncomplicated caries, including laser irradiation of hard tooth tissues, characterized in that, in order to reduce trauma and shorten the preparation time, laser irradiation is carried out at a wavelength of 2.94 µm, pulse duration 100-500 μs, power 0.5-1 J / pulse, power density 2x10 ± 3x10 W / cm. frequency 1 Hz, exposure 3-30 s.