LT3853B - Apparatus for carrying out devitalizations and root canal treatments in teeth, and for sealing the treated teeth - Google Patents

Abstract

Improved device for root canal root canal treatment and treatment with liquid chemicals which comprises the following steps: forming a vacuum vessel in the tooth pulp channel and root canals vacuum; sequential selective feeding of said pulp channel and root canals to said liquid chemicals materials in appropriate containers at atmospheric pressure; the said materials are then transferred to said vessel. The tooth thus cured is sealed using the consistency of the sealing paste material intake into the tooth.

Description

The present invention relates to an improved device for killing and treating canals using liquid chemicals.

The present invention also relates to a particularly effective method of sealing a dental pulp canal and a root canal by utilizing a paste-like material for killing and treating a root canal.

The use of special instruments in canal treatment has long been known in dental medicine. In fact, the use of these instruments implies a known mechanical effect, which involves opening and widening the root canal, so that also the use of mechanical instruments can be used to kill the tooth while removing the nerve.

Such a functioning system generally requires an appropriate number of sessions to be performed by highly qualified and experienced people - especially when qualitative killing is required, as well as minimizing the likelihood of emergence, infestation and the like.

Finally, the successful completion of such an operation using traditional instruments requires a relatively long period of time.

To overcome the above disadvantages, another penetration system has been proposed, whereby the pulp canal and the root canal are washed and cleaned by introducing chemical liquids into them.

Such a system was disclosed, for example, in Italian patent no. 1,185,556 and U.S. Pat. 4,021,921. However, it has been found that the use of compressed chemical fluids is not fully effective in cases where the root canal becomes obstructed by a pulp that is compressed inside the tooth canal. This makes it impossible for the fluid used for treatment to get there.

U.S. Pat. It is also proposed to open a tooth canal to remove the pulp by suction and flush the root canal with lavage fluid, finally eliminating the remaining pulp.

It turned out that such a system does not fulfill its function as it is difficult to pump the entire pulp directly from the open channel. It is also due to the subsequent supply of the rinsing fluid in this case also causing the root canals to become clogged with the same pulp which is compressed in the supplied rinsing fluid.

In addition, those skilled in the art will recognize that at the end of treatment in the tooth intended for killing and canal treatment, the pulp and root canals must be securely hermetically sealed using sealant to prevent potential infectious disease.

It is a pity, however, that the various techniques for closing the canal, as suggested above, do not ensure complete root canal filling, especially when there is more than one, or if they are small or folded.

The object of the present invention is to use a device which eliminates interdental pulp, nerve and any potentially infected areas to be treated in one short session and, of course, without the use of mechanical tools, to avoid the disadvantages of precursors. in addition, there is no need for highly qualified staff.

According to this object and the invention itself, the applicant's first premise is to provide a device that will perform the killing and dental canal treatment; in which liquid chemical drugs are fed. to the canal pulp canal and root canal; characterized in that it comprises sealing means for hermetically sealing said pulp channel, sealing a vessel, means for mounting the vessel, primary selective means of communication between said vessel and said pulp channel, a plurality of atmospheric pressure containers used to treat the respective liquids (pulp and root canal) ), secondary selective communication means between said plurality of containers and said pulp channel and tertiary selective communication means between said pulp channel and the atmosphere, since the pulp channel and root canals can be placed in a vacuum and thereafter gradually treated, liquids at atmospheric pressure (when introduced into said vessel under controlled vacuum) pass through said pulp channel and adjacent root canals.

It is desirable that the vacuum level inside the pulp channel may vary many times over short time intervals over a predetermined time period. For example, said vacuum level may be affected by said changes at 40 frequencies per minute.

Analogously, the pulp channel may be selectively coupled to each of the containers having respective healing fluids delivered multiple times over short time intervals over a predetermined time period. For example, the frequency of these communications changes is 20 times per minute.

The device operates under reduced pressure, for example, a vacuum value of 0.526 to 0.592 atmospheres.

Another object of the present invention is to provide a sealing device and to provide a device for sealing a healed tooth so that the paste-like healing material is used to fill the tooth completely, sealing with both the root canal and the protruding pulp canal.

For this purpose, according to the present invention, the applicant's present idea is to prepare a method of sealing using a paste-like material, given that the dental pulp canal and the root canal are pre-prepared for canal killing and treatment. The process involves the following steps:

- preliminary placement of the tooth in a communication means for communicating said root canals with a vacuum source;

- filling the canal pulp canal with the aforementioned paste-like material so as to seal the root canal hermetically;

- connecting said communication means to a vacuum source;

- applying a vacuum to the inner surfaces of the root canals so that a portion of the paste-like material inside the pulp canal is absorbed into the inside of said root canals;

- finally, removing said means of communication from the tooth.

Accordingly, in a best practical embodiment of the invention, said communication means for connecting the root canals to a vacuum source comprises hollow needles which are inserted freely into the tooth canals, but before the paste filling material is introduced into the pulp canal.

The vacuum source mentioned is a vessel (in which a vacuum pump is formed) which is connected to the hollow needles by means of tubes terminating in the connection part, for airtight connection of said tube to these needles, taking into account that there is a valve .

The structural and functional characteristics of the invention, and the advantages of its technical means, will be more prominent than known upon reference to the following description, which is based on the accompanying drawings which schematically illustrate an example of the device associated with the present invention.

FIG. 1 schematically illustrates an example of a device prepared in accordance with the present invention.

FIG. 2 The final stage of healing of the treated tooth.

According to FIG. 1, the device according to the invention is structurally comprised of a vacuum pump P operating, for example, at pressure values from 0.526 to 0.592 atm, a pressure regulator Rp, a vacuum indicator V, a special pressure regulator R _z comprising a warning device Z about reaching a non-hazardous vacuum limit. This part of the device according to the invention ends in a hermetically sealed vessel 10 which, as will be explained below, serves both as a vacuum reservoir and as a collection reservoir for unhealthy tissue removed.

In addition, the device has three containers 11, 12 and 13, each provided with a solenoid valve 14, 15 and 16, respectively, for selectively connecting said containers to the pulp channel 19 of the tooth 20.

A seal 21 is provided for sealingly sealing the pulp channel 19 of the tooth 20, and extending therein the elongations 50, 51 of the tubes 22, 23, the opening of which connects the pulley channel 19 with said vessel 10 and containers 11, 12, and 13, respectively. said elongations 50, 51 are flow-controlling solenoid valves 39 and 40 and tubes 48, 49. The said valves 39, 40 are controlled by a frequency generator 42 which is connected via a switch 38 for simultaneously activating relay 41, solenoid 18, solenoid 24 .

Said tube 23 may furthermore be connected to the atmosphere, but there is also an air filter 27 between the valve and the atmosphere through an electric valve 24 which is controlled by a switch 38. Also provided is a switch 26 which can control the same electric valve 24 via a generator 25. .

The selection of the therapeutic fluid inside the containers 11, 12 and 13 is made by a central switch 28 via respective multi-position switches 29, 30 and 31. Push switches 32, 33 and 34 allow the operator to perform the following commands: open electric valves 14, 15 and 16 at the appropriate time intervals. Numeric reference 35 denotes a key switch for activating or deactivating a device operating in a 24 V voltage mode, and numerical reference 36 denotes a push button switch 36 which controls the electric valves 14, 15 and 16.

The device is terminated by a tube 52 which terminates at the connecting end 53 with a hollow needle 46.

Said tube 52 is connected to a vacuum vessel 10 which is preceded by an electric valve 44 operated by a switch 43.

In accordance with the present invention, the operation of the device is understood from the above text, with reference to the drawings, and in short, follows.

An illustration of a device used to treat a tooth with a two root canal is illustrated by way of non-limiting illustration of this work.

After opening the respective pulp channel 19 by conventional means (drill), the seal 21 is fixed with the appropriate mastic so as to seal the tooth well.

When this is done, the main switch 35 is activated. Pump P is started. Pump P is stopped by the controller Rp, for example, when the vacuum indicator indicates that working pressure inside reservoir 10 has reached about 0.59 atm.

During this phase the solenoid valve 18 is closed. The switch 37 is now engaged (position 1) to start the generator 17 which causes the electric valve 18 to open and thereby connect the reservoir 10 to the pulp channel 19 via the tube 22.

By means of generator 17 (which switches off continuously and switches on to the respective pre-fixed time intervals) the reservoir 10 and the pulp channel 19 can be connected to each other for short time intervals, for example 40 frequencies per minute, when different vacuum levels are thereby achieved. This action, for example, lasting 2 minutes. gives very positive results in terms of further cleaning of the ducts at different vacuum levels.

After this time period, the multi-position switches 28 and 29 are set to positions 1 and 2, respectively.

Generator 17, normally switched on, is switched off by moving switch 37 to position O (switch 37 off) by simultaneously pressing pushbutton switch 36 to cause opening of the chelectrocapan 14 and thereby causing fluid in container 11 to flow into pulp channel 19.

The generator 17 is then restarted by activating the switch 37 (position 1); in this case valve 18 is opened and pulp channel 19 is connected to vessel 10.

As long as the reservoir 10 and the pulp channel 19 are interconnected, the generator 17 causes the electric valve 18 to be opened and closed sequentially over a period of time. Thus, within the pulp channel 19, the vacuum values change; the opening and closing frequency of solenoid valve 18 may be, for example, about 40 times per minute.

During the steps just described, opening the electric valve 18 ensures that in the event of system malfunction (e.g., poor quality sealing or even seal 21 falling out of pulp channel 19), the treatment fluid will be sucked into vessel 10 and thus not leak into the patient's mouth.

The switch 26 is now energized to start the generator 25 which causes the electric valve 24 to open. The opening of the electric valve 24 connects the tube 23 and, respectively, the pulp channel 19, the tube 22 and the reservoir 10 with the atmosphere.

The multi-position switch 29 is then moved back to position 1 and the push-button switch 32 is depressed at intervals such that the fluid in the container 11 enters the pulp channel through the electric valve 14 and from there through the opened electric valve 18 into the vessel 10.

For example, pushbutton switch 32 may be pressed once every second, which will cause vacuum fluctuations (due to opening and closing of electric generator 25 of controlled oscillator 25) and removal from the pulp channel of the elements inside said channel which must be depressed. remove it. These removed elements are collected inside the vessel 10.

At the end of the programmed treatment time by the vacuum pressure pulses, the power to the generator 25 is disconnected by switching off the switch 26, given that the electric valve 24 is closed.

In this condition, the device is prepared for treatment using the fluids contained in containers 12 and 13.

This treatment is accomplished by performing the above operation with respect to container 11, by simply switching the multi-position switch 28 to position 2 (for container 12 and position 3 (for container 13) and actuating the respective push-button switches 33 and 34).

These steps may be repeated as indicated, for example: five times with the therapeutic fluid in the container 11 (by pressing the button 32); three times with the enzymatic enzymatic fluid contained in the container 12 (upon the operation of push-button 33; twice with the last flushing fluid contained in the container 13 (the operation of the push-button 34)).

If you need to shorten your treatment cycle, the process can be done this way.

After each treatment fluid (contained in containers 11, 12 and 13) is fed to the pulp channel as described above, switch 38 is actuated. After it is energized, relay 41 closes and in turn opens electric valve 18 and electric valve 24 and eventually activates frequency generator 42.

Frequency generator 42 simultaneously actuates solenoids 39 and 40 at a pulse frequency of 120 Hz to obtain a fluid change as follows: Fluid flow through tube 23 and solenoid at 0.4 bar during the first half of the second (60-120 Hz) 40. The said fluid passes through tube 51 into the pulp channel of tooth 20 and continues to flow through tube 50 and solenoid 39, through tube 22 and solenoid 18, and fluid flow ends in vessel 10.

During the second half of the second (60-120 HZ) the fluid will flow through the following path: tube 23, tube 49, solenoid 39, tube 50, tooth 20, tube 51, solenoid 40, tube 48, tube 22, vessel 10.

The switch 38 is finally turned off, the switches 37 and 26 are turned on for a few tens of seconds and then turned off again.

Due to the fluid flow of the healing fluids, pulp and root canals can always be cleaned qualitatively in a relatively short period of time.

At this point the cycle ends. The number of these cycles can be repeated as many times as needed.

After killing and canal treatment as described above, the tooth can be sealed by placing a hollow needle 46 at the apex of the root canal 45. The hole in the pulp channel 19 is sealed with the necessary amount (in small excess) of sealing paste 47, but at the same time any air inlet must be removed; the tube 52 is then connected to the hollow needle 46. The switch 43 opens the electric valve 44 which connects the vacuum reservoir 10 with the root canal 45. The vacuum thus formed seals the sealing paste 47 (previously found in the pulp channel hole) into the root canal 45, filling it as required (Fig. 2).

The switch 43 is deactivated, the solenoid valve 44 closes, the hollow needle 46 is removed from the duct 45, and the sealing operation is completed.

The tube 52 may terminate in a plurality of connecting portions, the ends 53, which may be used on a plurality of hollow needles 46 to treat multiple channels of the same tooth simultaneously.

The advantages of the device constructed according to the invention may be briefly summarized as follows.

The work in the pulp and root canals is mainly done under vacuum and at atmospheric pressure.

The purpose of creating a vacuum within the sealing system (consisting of apparatus, pulp canal and root canal):

- firstly, the provision of the necessary effect of the chemical and, consequently, removal and extraction of the internal pulp nerve,

In addition, the effect of a vacuum (aimed at getting fluid to come in contact with the material to be removed) and the introduction of fluid and air into the vacuum system at various frequency pulses provide a highly effective operation for cleaning the tooth pulp and root canals.

Therefore, according to the present invention, the distinguishing features and main features of the device are that they must work both under vacuum and at atmospheric pressure and with the help of a pulsating variable flow fluid inside the sealed nerve node.

Practical tests have shown that, regardless of the shape and size of the pulp and root canals, they are completely cleared without any instrumental internal intervention.

Healing of the healed tooth, performed in the manner described above, protects the tooth from air trapping inside the duct, which in turn could lead to infection.

Claims (11)

DEFINITION OF INVENTION An apparatus for killing and treating dental root canals, the type comprising administering to the dental pulp canal and to the root canal medicinal liquid chemicals, characterized by having a sealing means for sealing the pulp canal, a sealed container, means for holding said container under a control vacuum, primary selective communication means between said vessel and a pulp channel, a plurality of atmospheric pressure containers for holding appropriate fluids for treating the pulp and root canal, secondary selective communication means between a plurality of containers and a pulp channel, and third selective communication means between the pulp channel and the atmosphere; the fact that the pulp canal and the root canal can be initially vacuum-treated and then gradually treated with healing fluids at atmospheric pressure which are placed in said vessel under a controlled vacuum and pass through the pulp canal and adjacent root canals. channels. 2. A device according to claim 1, characterized in that the vacuum level within the pulp channel is subjected to a plurality of changes at short intervals over a predetermined time period. 3. A device according to claim 2, characterized in that said vacuum level can be varied at 40 frequencies per minute. 4. The device of claim 1, wherein the pulp channel may be selectively associated with each container containing a respective therapeutic fluid delivered multiple times over a predetermined period of time. Device according to claim 4, b with frequency values of 20 you are together s k per iria minute. n t i s Device according to claim 1, b e s i s k iria n t i s in that the vacuum values pulp 0.526 to 0.592 atm. channel inside is from A device according to claim 1, b e s i s k iria n t i s having: a vacuum pump (P); pressure regulator (R _p ); a vacuum indicator (V); a pressure regulator (R _z ) defining a device (Z) for alerting that a non-hazardous vacuum limit has been reached; a hermetically sealed vessel (10) which serves both as a vacuum reservoir and as a collecting reservoir for unhealthy tissue removed; three containers (11, 12 and 13) each provided with respective electric valves (14, 15 and 16) for selectively connecting the containers to the pulp channel (19) of the tooth (20); a generator (17) with a control switch (37) controlling an electric valve (18) for selectively coupling said vessel (10) to the pulp channel (19) of the tooth (20); a seal (21) for sealing the pulp channel (19) of the tooth (20), and the tubes (22, 23) open therein which respectively connect the pulley channel (19) to the vacuum vessel (10) and the containers (11, 12 and 13). in addition, the tube (23) is configured to allow its use via an electric valve (24) for communication with the atmosphere; controlled by a switch (26) generator (25); an air filter (27); a central switch (28) with respective multi-position switches (29, 30 and 31) for selecting the treatment fluids contained in the containers (11, 12 and 13); push-button switches (32, 33 and 34) allowing the operator to command the electric valves (14, 15 and 16) to open at appropriate intervals; a main device switch (35) and a push button switch (36) for controlling the electric valves (14, 15 and 16). 8. A device according to claim 7, characterized in that the tubes (22, 23) have elongations (50, 51) with corresponding flow control valves (39, 40), and the tubes (48, 49) are located between the tubes (22, 23). ) and elongations (50, 51), in addition, the electric valves (39, 40) are controlled by the relay (41) of the frequency generator (42) excited through the switch (38). 9. A device according to claim 1, characterized in that the sealed molten vessel is provided with communication means for connecting root canals therewith. 10. A device according to claim 9, characterized in that the communication means consist of at least one hollow needle connected via said tube to said vessel, in addition to which control electric valves are disposed. 11. A method of sealing with a paste-like material, wherein the pulp canal and the root canal have been pre-exposed to oblivion and root canal treatment, comprising: - preliminary placement of communication means to connect the root canals to the vacuum source inside the tooth; - filling the canal pulp canal with a paste-like substance so as to hermetically seal the root canals; - connecting communication means to a vacuum source; - applying a vacuum to the inner surfaces of the root canals to induce suction of a portion of the paste-like substance already present in the pulp channel into the root canal; - removal of the means of communication from the tooth. 12. The method of claim 11, wherein the communication means used to connect the root canal to the vacuum source consist of hollow needles that are freely inserted into the root canal before the pulp canal is filled with paste-like material for treatment and filling. . 13. The method of claim 11, wherein the vacuum source is connected to the hollow needles through a tube terminating at the connecting ends required for airtight connection to those needles, and a vacuum valve is inserted between them to control the vacuum formation. 14. The method of claim 11, wherein the vacuum source comprises a vessel in which a vacuum is created by a vacuum pump and is connected to a hollow needle by means of a tube terminating at a connecting end for hermetically connecting said tube to said needles. an electric valve that regulates the formation of the vacuum.