KR101107856B1 - Low output power laser treatment apparatus and method thereof - Google Patents

Abstract

The present invention relates to a low power laser treatment device and a control method thereof.

In particular, the present invention is a pulsed laser having a wavelength in the range of 810nm to 910nm and a low power intensity of 0.1 ~ 10mW, a pulse width of 30ns ~ 200ns, the frequency (0.5KHz to 5.0KHz), the beam diameter The present invention relates to a low power laser therapy apparatus having a biostimulation effect of the oral cavity using the laser diode having 4.5 mm 2 mm and a control method thereof.

Low power, laser therapy device, laser diode, perceptual hypersensitivity

Description

Low output power laser treatment apparatus and method thereof

The present invention relates to a low power laser treatment device and a control method thereof.

In particular, the present invention is a pulsed laser having a wavelength in the range of 810nm to 910nm and a low power intensity of 0.1 ~ 10mW, a pulse width of 30ns ~ 200ns, the frequency (0.5KHz to 5.0KHz), the beam diameter The present invention relates to a low power laser therapy apparatus having a biostimulation effect of the oral cavity using the laser diode having 4.5 mm 2 mm and a control method thereof.

In modern medicine, lasers come in many forms. In modern medicine, lasers come in many forms.

Medical applications of lasers, previously limited to the field of surgery, have recently been widely extended to the fields of non-invasive diagnosis and treatment. Initially, the laser was introduced into the surgical procedure, and the laser introduced into the surgical area is a laser with a large output energy and has a tissue destruction effect. Through this tissue destruction phenomenon, high power laser was applied to tissue cutting, coagulation and hemostasis.

Low-power laser treatment was then applied to wound healing for the first time, and low-power laser treatment began. Studies on the clinical effects, photobiological and photochemical reactions of low power lasers have been reported to include healing, analgesic, anti-inflammatory, anti-edema, tissue vascular changes and stimulating effects on damaged tissues. Low power lasers have been used in many applications.

On the other hand, if a tooth aches, pain, or tooth shaking caused by hypersensitivity that is common in dental diseases, it becomes difficult to clean the inside of the mouth with a general toothbrush, especially thermal Factors, evaporation, tactile, osmotic, and chemical stimuli can cause short, sharp pain that makes it difficult to maintain normal brushing habits.

These hypersensitivity phenomena are 8 times higher in ivory tubular discharge than in normal dentin (Martin Addy, UK), and twice as large as normal ivory tubular diameter, resulting in minor irritation, cold air, or irritating food. When you feel sensitive, it can range from mild symptoms to intense, persistent pain.

Such a symptom of ache can not be expected to have a great effect even when taking painkillers or anti-inflammatory drugs, tricalcium phosphate (microcrystalline hydroxyapatite), glycerophosphate, calcium dihydrogen phosphate, calcium monohydrogen phosphate. Components such as precipitated calcium carbonate, anhydrous calcium phosphate, hydrous silicon dioxide, silica, and the like, and products such as toothpaste each containing a component such as silver nitrate have been commonly used.

The cause of such hypersensitivity is erosion due to bad oral hygiene habits such as gum disease caused by dental plaque formed due to the use of poor quality toothbrushes, damage to the surface of the gums or gum tissue due to physical shock, or improper use of toothbrushes. Each of these factors, such as erosion, abrasion, attrition, and idiopathic erosion, synergistically lead to progressive enamel and dentin deficiencies, eventually leading to exposure of the ivory tubules.

Because of this problem, in recent years mainly used electric toothbrush. However, despite the superior tooth cleaning of electric toothbrushes, patients with severe complaints of back pain have complained of pain in use, even if the toothbrushes are relatively stable in the transmission of washing power, rather than hypersensitivity. ) Tends to increase.

The present invention has been made to solve the above problems, by using a low-power laser diode (LED, Laser) to generate a photobiological stimulation effect on the teeth to treat symptom such as hypersensitivity (hypersensitivity) The present invention provides a laser therapy apparatus using a low power laser diode (LED) and a control method thereof.

The present invention for achieving the above object, the laser treatment device consisting of a main body and a handpiece, which is provided in the handpiece, the laser diode for generating and emitting laser light; A laser diode drive provided in the handpiece and configured to control the laser to be emitted by driving the laser diode when a laser transmission control signal is input; A key input unit provided in the main body and having a mode selection button to receive a mode desired by a user; A memory provided in the main body and storing wavelength and intensity for each mode; A control unit provided in the main body and outputting a laser transmission control signal to the laser diode drive so that the laser diode emits light having a wavelength and intensity specified in the selected mode according to the selection mode inputted from a key input unit; And a display unit provided in the main body and configured to display a selectable mode to a user and to display an operation state.

In addition, the present invention (A) the control step of supplying power to each component when the power button is turned on; (B) the control unit performing initialization for each component; (C) the controller performing a selection process to allow a user to select a mode; And (D) the control unit generating and irradiating light having a wavelength corresponding to the selected mode.

The present invention as described above can adjust the laser output intensity according to the skin or pain of the individual, there is an effect that can be safely used without damage to the skin or blood vessels.

Hereinafter, a low power laser therapy apparatus and a control method thereof according to an exemplary embodiment of the present invention will be described in detail with reference to FIG. 1.

1 is a block diagram of a laser treatment device according to a preferred embodiment of the present invention, Figure 2a is a perspective view of a laser treatment device according to a preferred embodiment of the present invention, Figure 2b is a planar protective cap of the laser diode of Figure 1 Figure 2c is a perspective view of the convex protective cap of the laser diode of Figure 1;

Referring to the drawings, the laser treatment device according to an embodiment of the present invention is provided with a power supply 10, the main body 20, the handpiece 30.

Here, the power supply unit 10 supplies power to the main body 20 and the handpiece 30, and converts and provides an AC voltage to a DC voltage, for example, an adapter of 12V / 500mA may be used.

The main body 20 includes a key input unit 22, a control unit 24, a display unit 26, and a memory 28.

The key input unit 22 includes a power key 22a for supplying or interrupting power to the main body 20 and the handpiece 30, and according to the operation of the power key 22a of the user, The piece 30 may be powered or interrupted.

In addition, the key input unit 22 is provided with a mode selection button 22b for selecting the set treatment program, and the user can select the set treatment program using the mode selection button 22b.

In this case, an example of a mode that the user can select through the key input unit 22 is illustrated in Table 1, wherein the frequency and time are different for each mode.

(Table 1)

mode Frequency (Hz) Minutes One 950-1050 1-5 2 450-550 1-4 3 950-1050 2 ~ 6 4 1950 ~ 2050 1-4 5 2950-3050 2 ~ 6 6 3950-4050 2 ~ 6 7 4950-5050 1-5

Here, Mode 1 is a mode suitable for the treatment of Hyper Sensitivities, Aphthes, and Edema, wherein the laser power intensity is about 1 mW to 3 mW, and preferably 2.2 mW.

The clinical trial results for this mode 1 are shown in Table 2 below. Table 2 shows, for example, the degree of pain when scratching with a needle, etc. (Ta), the degree of feeling when using cold ice (Th), and an electric dimensional tester The degree of feeling (EPT) when contacted with was measured.

Teeth were used in teeth 4 and 7 of upper and lower teeth, almost unchanged in Ta, but improved in Th (improvement with decreased value) and in EPT (improvement with increased value). Judged). Therefore, according to the mode 1 according to the present invention it can be seen that a lot of perceptual hypersensitivity symptoms can be improved (the same clinical results can be obtained in other modes, but not attached to this specification).

 (Table 2)

How to measure Tooth number 7 6 5 4


Before procedure

Ta Lettuce 0 0 0 0 Hotch 0 0 0 Th
Lettuce 100 100 100 100 Hotch 70 40 30 EPT
Lettuce 2 5 3 2 Hotch 6 2 2

1 week after procedure


Ta
Lettuce 0 0 0 0 Hotch 0 0 0 Th
Lettuce 100 100 100 100 Hotch 100 100 100 EPT
Lettuce 2 5 2 2 Hotch 4 3 2

2 weeks after procedure


Ta
Lettuce 0 0 0 0 Hotch 0 0 0 Th
Lettuce 20 20 20 20 Hotch 60 60 50 EPT
Lettuce 4 5 3 6 Hotch 6 6 2

In addition, mode 2 is a mode suitable for pulpitis, pressure spot, herpes simplex, and hematomas, wherein the laser power intensity is about 0.5 to 1.5 mW, preferably 1 mW. Is suitable.

Mode 3 is a mode suitable for gingivitis and stomatitis, wherein the laser power intensity is about 2 to 2.4 mW, preferably 2.2 mW.

Next, mode 4 is a mode suitable for trigeminal neuralgia (Trigeminus-neuralgia), wherein the laser power intensity is about 3 ~ 5mW, preferably 4mW.

Mode 5 is a mode suitable for pain after implant, metal allergy, periodontitis, and the laser power intensity is about 4.5 to 6.5 mW, and preferably 5.5 mW.

Next, Mode 6 is a mode suitable for pain after extraction, strain salts, and inflammatory tumors (Granulomes), wherein the laser power intensity is about 3 to 9 mW, preferably 6.3 mW. .

Mode 7 is a mode suitable for neural disoder, pain after crown bridges, pain by different Jaw-Articulation, and the laser power intensity is about 6 to 8 mW, preferably 7 mW. Is suitable.

Meanwhile, the key input unit 22 includes a frequency setting button 22c for adjusting the output frequency of the laser, and the user may adjust the output frequency using the frequency setting button 22c.

At this time, the range of the output frequency that the user can adjust using the frequency setting button of the key input unit 22 is in the range of 500Hz to 5000Hz.

In addition, the key input unit 22 includes a time setting button 22d for setting the output time of the laser so that a user can operate the time setting button 22d to adjust the laser signal output time.

At this time, the time which can be set by the user through the time setting button 22d of the key input unit 22 can be selected within the range of 1 minute to 60 minutes, for example.

In addition, the key input unit 22 is provided with a ready button 22e for setting the ready state for laser irradiation, so that the user can prepare the laser irradiation of the handpiece 30 by operating the ready button 22e. Can be.

On the other hand, the control unit 24 controls the power distribution of the power supply unit 10, the control of the power controlled by the operation control of the key input unit 22, the frequency control (or wavelength control) of the laser diode 34, and the laser Adjusting the intensity of the diode 34, the irradiation time of the laser diode 34, and controls the overall operation of the laser treatment device, such as displaying the laser output intensity output from the laser diode 34.

The display unit 26 displays the current operation mode of the laser diode 34 and operating states such as wavelength, intensity, irradiation time, and the like.

To this end, the display unit 26 includes a liquid crystal display 26a for displaying the current operation mode, an operating state light 26b for indicating that it is in operation, and a level indicator 26c for displaying the intensity of the output laser. .

Next, the memory 28 stores a program for controlling the main body 20, stores the set wavelength and irradiation time of each mode, and selects each mode according to the operation mode selection of the key input unit 22. The specified wavelength, time, and the like are provided to the control unit 24.

Next, the laser diode drive 32 controls the output light intensity, the light wavelength, the output time, etc. of the laser diode 34 under the control of the controller 24.

The laser diode 34 is, for example, InGaAs or GaAs Pulsed Laser Diodes, and has an output wavelength in the range of 810 nm to 910 nm for photochemical biostimulation. The intensity ranges from 0.1 to 10mW, the pulse width is 30ns to 200ns, the frequency ranges from 500Hz to 5000Hz, and the beam diameter ranges from 4.5mm to ± 2mm.

In this laser diode 34, the laser output intensity is particularly suitable at 1 mW at 500 Hz, 2.2 mW at 1000 Hz, 4 mW at 2000 Hz, 5.5 mW at 3000 Hz, 6.3 mW at 4000 Hz, 7mW at 5000Hz is suitable.

The switch 36 included in the handpiece 30 turns on the laser diode 34 to turn on the laser when the control unit 24 switches to the ready state according to the operation of the ready button of the key input unit 22. It is for exiting and the laser output can be adjusted according to the user's operation.

Next, the laser detector 38 measures the light intensity of the laser emitted from the laser diode 34 and transmits it to the controller 24, and causes the controller 24 to display the level indicator 26c of the display unit 26. The output light intensity of the laser diode 34 is indicated.

On the other hand, the laser diode 34 is mechanically provided with a laser diode protection cap 40 so as to protect it from external shocks and the like.

This protective cap 40 is a planar protective cap 40 is detachable to the laser diode 34 as shown in Figure 2b can be removed by disinfection by removing the protective cap 40 after the procedure using the apparatus of the present invention. After being reused, it is hygienic and economical.

In addition, such a planar protective cap 40 prevents the tooth from directly contacting the laser diode 34, thereby protecting the laser diode 34 from the impact generated when the tooth comes into contact with the laser diode 34 to safely use the device of the present invention. Make sure

The planar protective cap 40 has a flat front surface, but unlike the laser diode 34 using the convex protective cap 40 having the convex lens 40a on the front surface as shown in FIG. 2C. You can also focus the laser on the site of the desired tooth.

Referring to the operation of the laser treatment device having such a configuration in detail as follows.

First, when the user presses the power key of the key input unit 22, the control unit 24 supplies the power provided from the power supply unit 10 to the respective components in the main body 20.

In addition, the controller 24 may display the operation state by turning on the operation state light 26b on the display unit 26.

In addition, the control unit 24 displays the user mode as a basic menu on the liquid crystal display 26a of the display unit 26, so that the user uses the frequency setting button 22c or the time setting button 22d in the user mode state. Allows you to set the time.

In this user mode, when the user sets the frequency and time using the key input unit 22 and presses the ready button 22c, the controller 22 controls the laser diode drive 32 to irradiate the laser according to the set frequency. The laser transmission control signal of the set frequency is output to the.

Then, the laser diode drive 32 transmits a laser driving signal of a frequency set to the laser diode so that the laser diode 34 emits a laser of the set frequency.

Meanwhile, the user may select the treatment mode by using the mode selection button 22b while the controller 24 displays the user mode on the display unit 26.

At this time, the selectable mode states are modes 1 to 7, and when the user selects a treatment mode, the control unit 24 reads the frequency and time corresponding to the selected mode into the memory 24 and the corresponding laser transmission control signal. Is transmitted to the laser diode drive 32.

Of course, the user may change the frequency and time in the selected mode by using the frequency setting button 22c and the time setting button 22d.

Then, when the switch 36 is turned on, the laser diode drive 32 outputs a laser driving signal for driving the laser diode 34 to the laser diode 34 so that the laser of the set frequency is emitted from the laser diode 34. When the laser driving signal is emitted from the laser diode drive 32 as described above, the laser diode 34 transmits a laser of a set frequency.

The laser generated by the laser diode 34 is transmitted to the head side of the handpiece 30 and irradiated to the skin. Laser light changes the protein molecular crystals in the blood, which give a kind of biological response and effect by photochemical action.

On the other hand, the control unit 24 counts the operation time by operating the built-in timer when the switch 36 is turned on. The operating time counted by the timer is displayed on the display unit 26.

At this time, the control unit 24 checks the counting time of the built-in timer to determine whether the operation time has passed the set time.

As a result of judgment, when the operation time exceeds the set time, the buzzer is sounded to inform the end of the set time.

Afterwards, when the user ends the operation of the main body 20, the user presses the power key of the key input unit 22 to turn off the power and finishes the use.

Meanwhile, the laser detector 38 measures the light intensity of the laser emitted from the laser diode 34 and transmits the measured light intensity to the controller 24, and the controller 24 transmits the laser diode to the level indicator 26c of the display unit 26. The output light intensity of 34 is displayed.

3 is a flow chart of a control method of the laser treatment device according to an embodiment of the present invention.

Referring to FIG. 3, when the user presses a power key to turn on the power (step S110), the controller supplies power to each component (step S120). Thereafter, the controller initializes the state of each component (step S120).

This initialization process is illustrated in FIG. 4, in which the controller initializes hardware such as an input / output device, a timer, an analog / digital converter, a display, and the like (step S132).

The controller performs initialization for software such as a timer while initialization of the analog device is completed or in progress (step S134).

Next, when the initialization process is completed, the control unit performs a self-diagnosis on the display, the buzzer, etc. to determine whether the initialization is well performed (step S136).

Meanwhile, when the initialization process is completed, the controller displays the user mode state as an initial value on the display unit and then proceeds with the selection process (step S140).

Here, referring to FIG. 5, when the user selects a mode in which the user wants to drive the laser diode through the key input unit (step S141), the controller selects a laser wavelength, a laser intensity and a laser irradiation time of the selected mode. Is read from the memory and a corresponding laser transmission control signal is output to the laser diode drive (step S142). At this time, the selectable modes are well shown in Table 1 as one to seven modes, for example.

Thereafter, when the user selects a frequency using the frequency setting button in order to fine tune the mode selected through the key input unit (step S143), the controller changes the selected frequency (step S144). At this time, the settable frequency selection range is 500Hz to 5000Hz.

If the user changes the irradiation time via the key input unit (step S145), the controller changes the set time (step S146). At this time, the range of irradiation time that the user can change through the key input unit is, for example, 1 minute to 60 minutes.

On the other hand, the process of performing the irradiation of the laser diode will be described with reference to Figure 6, the control unit checks the on state of the ready button (step S151) and the user presses the ready button provided in the key input unit to perform the laser irradiation process If desired, the control unit prepares laser irradiation by outputting a laser emission control signal of a corresponding frequency to the laser diode drive so as to emit a laser of a wavelength corresponding to the set mode (step S152).

When the laser emission control signal is input from the control unit, the laser diode drive checks the on state of the switch button (step S153). If the user wants to irradiate the laser by pressing the switch button provided on the handpiece, A laser drive signal is output to irradiate the laser.

The laser diode is then driven according to the laser drive signal input from the laser diode drive to generate and emit a laser of the corresponding wavelength (step S154).

On the other hand, if the switch button provided on the handpiece is turned on, the controller checks the irradiation time of the laser by driving the built-in timer (step S155).

Then, the controller determines whether the measured irradiation time has exceeded the set time (step S156), and if it does not exceed, check the laser irradiation time, and if the measured irradiation time exceeds the set time, the laser diode drive stops irradiating the laser diode drive. The control signal is transmitted to cause the laser diode drive to stop driving the laser diode (step S157).

As such, the laser output light intensity may be measured and displayed while the irradiation process by the laser diode is performed, and the process performed is shown in FIG. 7.

Referring to FIG. 7, the laser detector detects and outputs the light intensity of the laser light output from the laser diode (step S210), and the controller determines whether there is a detection of the laser output light intensity from the laser detector ( Step S212).

As a result of the determination, if there is a detection of the laser output light intensity from the laser detector, the control unit turns on the detected light intensity (step S214) and displays the level (step S216).

As a result of the determination, if there is no detection of the laser output light intensity from the laser sensing unit, the control unit maintains the off state if the level indicator is off and stops the level display by turning off the level indicator if it is on (step S218).

1 is a block diagram of a low power laser treatment device according to an embodiment of the present invention.

Figure 2a is a perspective view of a low power laser treatment device according to an embodiment of the present invention, Figure 2b is a perspective view of the planar protective cap of the laser diode of Figure 1, Figure 2c is a perspective view of the convex protective cap of the laser diode of Figure 1;

Figure 3 is a flow chart of a control method of a low power laser treatment device according to an embodiment of the present invention.

4 is a flowchart of an initialization process of FIG. 3.

5 is a flow chart of the selection process of FIG.

6 is a flow chart of the investigation process of FIG.

7 is a flowchart of a laser output light intensity display process in a control method of a low power laser treatment machine according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

10: power supply 20: main body

22: key input unit 24: control unit

26: display unit 28: memory

30: handpiece 32: laser diode drive

34: laser diode 36: switch

38: laser detector

Claims (11)

In the laser treatment device comprising a body and a handpiece, A laser diode provided in the handpiece to generate and emit laser light; A laser diode drive provided in the handpiece and configured to control the laser to be emitted by driving the laser diode when a laser transmission control signal is input; A key input unit provided in the main body and having a mode selection button to receive a mode desired by a user; A memory provided in the main body and storing wavelength and intensity for each mode; A control unit provided in the main body and outputting a laser transmission control signal to the laser diode drive so that the laser diode emits light having a wavelength and intensity specified in the selected mode according to the selection mode inputted from a key input unit; And It is provided in the main body, and displays a selectable mode to the user, including a display unit for displaying the operation state, One of the user selectable modes stored in the memory is Mode 1, which is suitable for the treatment of Hyper Sensitivities, Aphthes, and Edema, and has a wavelength of 950 to 1050 Hz and a laser power intensity of 1 To 3 mW, the irradiation time is a low power laser treatment device, characterized in that 1 to 5 minutes. The method according to claim 1, A low power laser treatment device, which is detachable to the laser diode and further comprises a cap-shaped planar protective cap for protecting the laser diode from external impact. The method according to claim 1, A convex protective cap which is detachable to the laser diode and has a cap shape for protecting the laser diode from an external impact, is provided on the front surface and includes a convex lens for focusing a laser emitted from the laser diode on a tooth region. Low power laser therapy device further comprising. The method according to claim 1, It is provided in the handpiece, and further comprises a laser detector for measuring and outputting the intensity of the light emitted from the laser diode, And the controller is configured to display the intensity of light detected by the laser detector on the display unit. The method of claim 1, The laser diode has a wavelength in the range of 810 nm to 910 nm and a low power intensity of 0.1 to 10 mW, a pulse width of 30 ns to 200 ns, a frequency of 0.5 KHz to 5.0 KHz, and a beam diameter of 4.5 mm ± 2 mm. Low power laser treatment device, characterized in that. delete The method of claim 1, User-selectable mode 2 stored in the memory, suitable for pulpitis, pressure spot, herpes simplex, hematomas, wavelength range from 450 to 550 Hz, laser output The intensity is in the range of 0.5 to 1.5 mW, irradiation time is characterized in that the range of 1 to 4 minutes, Mode 3 is suitable for gingivitis and stomatitis, the wavelength ranges from 950 to 1050, the laser power intensity is about 2 to 2.4 mW, and the irradiation time is in the range of 2 to 6 minutes. , Mode 4 is suitable for trigeminal neuralgia (Trigeminus-neuralgia), the wavelength ranges from 1950 to 2050, the laser output intensity is 3 to 5mW, the irradiation time is characterized in that the range of 1 to 4 minutes, Mode 5 is suitable for implant pain (pain after implant), metal allergy, periodontitis (periodontitis), the wavelength ranges from 2950 to 3050, the laser power intensity ranges from 4.5mW to 6.5mW, the irradiation time is Characterized in that the range of 2 minutes to 6 minutes, Mode 6 is suitable for pain extraction, strains, and inflammatory tumors. The wavelength ranges from 3950 to 4050, the laser power intensity is 3 to 9 mW, and the irradiation time is 2 to It is characterized by a range of 6 minutes, Mode 7 is a mode suitable for neural disoder, pain after crown bridges, pain by different Jaw-Articulation, wavelengths ranging from 4950 to 5050, and laser power intensities ranging from 6 to 8 mW. And irradiation time is in the range of 1 minute to 5 minutes. (A) the control unit supplying power to each component when the power button is turned on; (B) the control unit performing initialization for each component; (C) the controller performing a selection process to allow a user to select a mode; And (D) the controller includes generating and irradiating light having a wavelength corresponding to the selected mode, As the user selectable mode in step (C), Mode 1 is a mode suitable for the treatment of Hyper Sensitivities, Aphthes, Edema, and has a wavelength of 950 to 1050 Hz, and the laser power intensity is 1 To 3 mW, and the irradiation time is 1 to 5 minutes. The method of claim 8, The light irradiated in the step (D) has a wavelength in the range of 810 nm to 910 nm and a low power intensity of 0.1 to 10 mW, a pulse width of 30 ns to 200 ns, a frequency of 0.5 KHz to 5.0 KHz, and a beam diameter. A control method of a low power laser treatment device, characterized in that it has a 4.5mm ± 2mm. delete The method of claim 8, As the user selectable mode in step (C), Mode 2 is a mode suitable for pulpitis, pressure spot, herpes simplex, and hematomas, and has a wavelength in the range of 450 to 550 Hz. The laser power intensity ranges from 0.5 to 1.5 mW, and the irradiation time is in the range of 1 to 4 minutes. Mode 3 is suitable for gingivitis and stomatitis, the wavelength ranges from 950 to 1050, the laser power intensity is about 2 to 2.4 mW, and the irradiation time is in the range of 2 to 6 minutes. , Mode 4 is suitable for trigeminal neuralgia (Trigeminus-neuralgia), the wavelength ranges from 1950 to 2050, the laser output intensity is 3 to 5mW, the irradiation time is characterized in that the range of 1 to 4 minutes, Mode 5 is suitable for implant pain (pain after implant), metal allergy, periodontitis (periodontitis), the wavelength ranges from 2950 to 3050, the laser power intensity ranges from 4.5mW to 6.5mW, the irradiation time is Characterized in that the range of 2 minutes to 6 minutes, Mode 6 is a mode suitable for pain after extraction, abscessos, and inflammatory tumors (Granulomes), ranging from 3950 to 4050, laser power intensity of 3 to 9 mW, irradiation time of 2 to 6 minutes. It is characterized by being in the range of Mode 7 is a mode suitable for neural disoder, pain after crown bridges, pain by different Jaw-Articulation, and ranges from 4950 to 5050, and laser power intensity ranges from 6 to 8 mW, Irradiation time is a control method of a low power laser therapy device, characterized in that in the range of 1 minute to 5 minutes.

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