DE19627865A1 - Temporary tooth filling comprising filling material and semipermeable body or particles - Google Patents

Abstract

Tooth is provided with temporary filling comprising an antiseptic and/or therapeutic filling material with solid bodies (10) or particles for insertion before filing. The body or particles are cemented in by filling or cementing material (12), so that at least part of the body or particles surfaces is uncovered. At least part of the body or particles is of semipermeable material. Pref. the body consists of a solid ring with membrane within it or can be a fibre package with semipermeable characteristics.

Description

The invention relates to a tooth filling, in particular a provisional tooth filling with a filling material, in particular with an antiseptic and / or therapeutic filling material, as well as with at least one solid before filling Bodies or particles according to the preamble of claim 1.

Temporary tooth fillings are used in so-called root canal treatments used. To do this, the tooth is mostly Area of the purchase area opened. To be able to perform a root extraction the required depth of the tooth opening to be created is relatively large. The tooth will through this opening in the root area, possibly even into the adjacent area Treated in the jaw area. In many cases there are painful inflammations who require dental treatment.

In a known manner, those suffering from a painful inflammation Provide areas with medication. If necessary, the root canals cleaned to remove inflamed areas of tissue. Nevertheless, many succeed Do not, immediately calm all inflamed areas.

In a known manner, after rinsing the interior of the tooth with, for example Hydrogen peroxide and entering a medication, the tooth then with one provisional filling closed until the inflammation subsided.  

However, it is disadvantageous that, especially when the ignition is still active, gas pressure inside of the tooth can arise. This gas pressure causes the obvious Nerves create a considerable pain stimulus.

In case of severe inflammation, especially if it surrounds the tooth root Therefore, the tooth is gripped for the purpose of allowing the tooth to escape Leave the inflammation pressure open for a while.

From DE 44 45 937 C1 a tooth filling is known which has a geometric one solid body includes the inserted in the tooth defect enlarged by drilling or is cemented. This tooth filling tries through an appropriate design the molded body and the tooth bore a suitable closure of the defect guarantee. Air pockets are avoided, but one is still suitable such known filling only as a final filling.

However, it is not suitable as a provisional therapeutic filling because it is the tooth hermetically seals. With inflammation, for example, in the root area the inflammatory pressure does not escape either.

Provisional fillings of a known type also lead to a closure of the tooth such that the resulting inflammatory pressure cannot escape.

The invention is therefore based on the object of filling a tooth, in particular one To create therapeutic tooth filling, which the inflammatory pressure from the Lets the inside of the tooth escape, but essentially liquid penetration prevented from outside in the tooth.

The task is performed with a tooth filling of the generic type solved according to the invention with the characterizing features of claim 1.

Further advantageous embodiments of the invention are in the subclaims specified.

The essence of the invention is that a semipermeable for the tooth filling Material is used or appears semi-permeable in the cemented state, the Filling is cemented into the defect of the tooth or the drilled tooth.  

This ensures that the tooth becomes "semi-permeable"; d. H. the Filling according to the invention leaves the inflammatory pressure arising in the interior of the tooth escape to the outside, but prevents moisture from penetrating outside inside.

Since in the mouth only media in liquid, possibly in a viscous form - Chyme - Occurrence is a choice of materials with the property of blocking Sufficient liquid.

However, there is no problem in choosing the semipermeable material in such a way that even the penetration of gaseous media is prevented. Knowing that also for example cigarette smoke when penetrating into the Wuzel channels open tooth can lead to painful irritation.

The cemented material can either be previously oriented as semipermeable be formed, or the desired semipermeability in the cemented state bring about. If you use semi-permeable material from the outset, so use must also be oriented. However, you can also just make it hydrophobic Use fiber material. A pressure gradient is created in the cemented state along the fiber bundle, the pressure inside the tooth slightly higher than outside is. This means that the preferred degassing takes place to the outside. Through the The hydrophobic choice of material or coating, however, cannot prevent moisture or Penetrate liquid from the outside in. With this variant you can click on the targeted semipermeability of the fiber material before it is introduced dispense; the semipermeability results from the choice of material and stationary gas dynamic equilibrium, with a slightly higher pressure within the Tooth that specifies the only possible gas flow direction.

An embodiment of the invention is the attachment of a semipermeable Membrane in an annular element which in the drilled tooth opening used and cemented in the edge area. The membrane can be used to obtain a sufficient statics here, too, a pressed fiber package with the mentioned semipermeable properties. However, since the filling is only one for the anyway Duration of the temporary restoration used, and therefore the treated tooth is not chewed, the membrane can also be a laterally extended, film-like Have shape that is clamped in the said ring and the said has semipermeable property.  

A possibly easier to handle embodiment of the invention is cylindrical body with semipermeable in the cylinder axis Property, for example the fiber package.

This cylindrical membrane has a high static, especially in used, cemented condition. This embodiment of the invention is particularly easy to prepare and use, and also holds a light one Chewing stress stood.

In an advantageous embodiment of the invention, this fiber packet membrane can be used as coherent strand produced and then rolled up so that the dentist can cut off and process the individually required length.

Because of the directional or orientation-dependent according to the invention semi-permeable property of the material, the rolled strand must be one at the The outer surface of the printed marking, for example in the form of a short interval recurring arrow.

In both embodiments of the invention can of course be drilled into the A therapeutic agent must be entered before tooth opening.

The membrane or the fiber material is also to be chosen so that the conventional therapeutics do not react chemically with them and so none Impair the semipermeable property.

The invention is shown in the drawing and in more detail below described.

It shows:

Fig. 1 cross section through a tooth in need of treatment using a fiber package according to the invention.

Fig. 2 cross section through a tooth in need of treatment using a laterally extended, film-like membrane according to the invention.

Fig. 3 cross section through full fibers.

Fig. 4 cross section through hollow fibers.

Fig. 1 shows an embodiment of the invention in which as a semipermeable membrane, a fiber package 10 is used. If one looks at the vertical axis of tooth 1 , the fibers of the fiber package 10 used there are largely parallel to this vertical axis shown. The semipermeable property is oriented along this axis. This means that the fiber packet 10 allows gas to escape from the inside of the tooth - as shown by the arrow - but prevents gas and / or liquid from entering the tooth from the outside. The length of the fiber package used is expediently chosen so that the fiber package 10 can initially be loosely inserted into the tooth opening or bore 5 and rests on the bottom of the tooth opening 5 . Then the fiber package 10 is fixed at the upper edge, in the area or near the imaginary occlusal surface 4 with cement material. The embedding with putty 12 takes place for fixation only in the edge area, ie the cut surface 11 of the fiber package 10 as an effective semi-permeable, ie semipermeable membrane surface remains free, so that the inflammatory pressure can escape unhindered from the tooth interior.

The tooth opening 5 in which the fiber package 10 is fixed has a gas-tight connection to the root canals 3 , so that the inflammatory pressure can even escape up to the jaw area.

In addition, when using this tooth filling according to the invention also Therapeutics are used, in which gases are even specifically generated. Here can the tooth, although it is closed, via the membrane according to the invention, or Vent the fiber package interface.

Since the semipermeable property of the fiber package is directional, i.e. H. The fiber package can be orientation-dependent, even if as a strand in the present case be provided with a continuous axially extending marking, for example in The shape of a recurring arrow. This marker is on the Apply the outer surface of the fiber bundle strand.

FIG. 2 shows a further embodiment of the invention, in which a laterally extended film 20 is used as the semipermeable membrane, which has semipermeable properties and is clamped within an annular element 21 . This ring 21 is introduced into the tooth opening 5 and correspondingly cemented in the edge area.

Here, too, the active membrane area must remain free. Because of the necessary consideration of the orientation, the ring 21 also contains an externally applied marking.

Fig. 3 shows a cross section through a part of a fiber assembly 10. Round-profile full fibers are used here. Even with the densest packing there are gaps that result in the capillaries essential to the invention along the fibers. In this embodiment, the fibers are either made entirely of hydrophobic material or are only coated with a hydrophobic layer.

Fig. 4 also shows a cross section of the fiber package 10 wherein the hollow fibers are used here. This results in capillaries in the spaces 30 , as well as through the inner capillaries 40 . Accordingly, the hollow fibers are therefore also to be produced entirely from hydrophobic material, or to be coated hydrophobically both on the outer surfaces and on the inner surfaces of the inner capillaries 40 .

Overall, the provisional tooth filling according to the invention can be used on the one hand easy to manufacture and secondly easy and quick to use. The This makes dental treatment more effective and further inflammation External infections are avoided even with severe inflammation. Both the cemented fiber packet filling according to the invention and the inventive film membrane filling can be easily removed again, so that at the end of the treatment the final filling or the tooth inlet in the healed tooth can be used.

Reference list

1 tooth
2 tooth root
3 root canal
4 occlusal area
5 tooth hole
10 fiber package
11 fiber package cut surface
12 putty
20 lateral, foil-like membrane
21 ring
30 spaces
40 inner capillaries

Claims (12)

1. Tooth filling, in particular provisional tooth filling, with a filling material, in particular with an antiseptic and / or therapeutic filling material, as well as with at least one body or particles which are already solid before filling, characterized in that the body or the particles ( 10 , 20 , 21 ) for closing the opened tooth ( 1 ) surrounded by filler or cement material ( 12 ) in the edge area or are cemented in such a way that at least a partial surface of the body or the particles ( 10 , 20 , 21 ) remains uncovered to the outside, and that the body or the particles ( 10 , 20 , 21 ) consists or consist of semipermeable material at least over part of its or its geometric dimensions, or has a semipermeable effect in the cemented-in state. 2. Tooth filling according to claim 1, characterized in that the body consists of a fixed ring ( 20 ) with a semipermeable membrane ( 20 ) arranged therein. 3. Tooth filling according to claim 1, characterized in that the body or the particles consists or consist of a fiber package ( 10 ) which is introduced substantially perpendicular to the occlusal surface ( 4 ) of the tooth ( 1 ), and semipermeable property having. 4. Tooth filling according to claim 2 or 3, characterized in that the fiber package ( 10 ) or the membrane ( 20 ) is at least liquid-blocking along its or its longitudinal extension in one direction and at least gas permeable in the other direction. 5. Tooth filling according to claim 4, characterized in that the fiber package ( 10 ) or the membrane ( 20 ) oriented in the open tooth ie in the tooth opening ( 5 ) is introduced such that at least gases escape from the interior of the tooth and at least liquid is not in the Can penetrate the inside of the teeth. 6. Tooth filling according to one or more of the preceding claims, characterized in that the fiber package ( 10 ) consists of hydrophobic or hydrophobically coated fibers. 7. Tooth filling according to claim 6, characterized in that the fibers of the fiber package ( 10 ) are hollow fibers which are coated hydrophobically both on outer surfaces and within the capillaries. 8. Tooth filling according to claim 6, characterized in that the fibers of the fiber package ( 10 ) are full fibers with a hydrophobic outer coating. 9. Tooth filling according to one or more of the preceding claims, characterized in that the fiber package ( 10 ) is surrounded by an annular thin-walled shell. 10. Tooth filling according to one or more of the preceding claims, characterized in that the length of the fiber packet ( 10 ) is adapted to the depth of the tooth opening ( 5 ) such that it does not have the chewing surface ( 4 ) after the provisional filling has been completed Zahns ( 1 ) protrudes. 11. Tooth filling according to one or more of the preceding claims, characterized in that the fiber package ( 10 ) is impregnated with a therapeutic agent. 12. Tooth filling according to one or more of the preceding claims, characterized in that the fiber package ( 10 ) is designed as a coherent strand, from which the length required for the respective depth of the tooth opening ( 5 ) can be separated and processed.