JPH0310601B2 - - Google Patents

Description

[Detailed Description of the Invention] Conventional dental root canal filling materials include gutta percher points, silver points, calcium hydroxide lumber,
Parafluorum lumber and zinc oxide lumber were produced.
However, among these, solid materials have the disadvantage that it is difficult to fill root canals with complex shapes without gaps. Moreover, the above-mentioned components have no affinity for teeth, and are simply filled with substances unrelated to living organisms. In addition, there is a drawback that various disorders may occur if these substances leak into the bone tissue from the apical foramen.

The present invention was made to solve the above-mentioned drawbacks, and is constructed as a dental root canal filling material as described in the claims.

The present invention will be explained in detail below.

In the present invention, the main component is hydroxyapatite (hereinafter abbreviated as OH-Ap). The reason for this is that OH-Ap is calcium phosphate that exhibits a crystalline form similar to that of teeth and bone tissue.
Ap has an affinity for the root canal dentin and tends to become identified with the tooth over time. Furthermore, even if some spillage occurred from the apical foramen during root canal filling, there was almost no harmful effect, and rather it had the effect of promoting active treatment of pathological periapical tissues. In addition, the results after filling could be confirmed by X-ray photography. Therefore, it is easy and safe to implement.

In addition, in the present invention, the main component OH-Ap
In addition to pure OH-Ap, one in which a part of the OH- group is substituted with an F ^- group may be used. When the latter is used, the crystallinity is improved and the physical and chemical properties are improved, but the affinity and safety for teeth and living organisms hardly change.

Next, in the present invention, silicone oil is mixed as a secondary component to the above-mentioned main components to form a paste-like shape having fluidity. As a result, this filling material was able to precisely fill every detail within a root canal with a complex shape. Silicone oil was selected here because it is an oily, colorless, transparent, tasteless and odorless liquid at room temperature among the materials that impart fluidity.
There is little change in viscosity due to temperature, it is chemically inert, and in terms of safety for living organisms, it does not change with tissue fluids of living organisms, does not cause inflammation in surrounding tissues, and has extremely low foreign body reactions. It depends. The addition of silicone gives the main component appropriate fluidity, making it easier to reach the desired details.
It was effective in increasing safety.

In addition, in the present invention, if a silicone oil curing agent is further added and mixed as a subcomponent at the time of filling,
The material of the present invention can also have the property of being able to solidify from a paste-like state after being filled, thereby expanding the range of treatment.

In addition, the present invention provides continuous antibacterial properties after filling by further adding and mixing iodoform as a subordinate component to the above-mentioned ingredients.
Furthermore, in cases where there is a possibility of bacterial infection, an effective sterilizing effect can be obtained, and an effect of further improving X-ray contrast properties can be obtained.

Next, in the present invention, each of the above components is sufficiently stirred and mixed by a known stirring method, and then placed in a plastic, polyester, aluminum, or other container such as a tube or syringe to form a product or a dental root canal filling. It can be used as a material for dental treatment.

(Example) Stir and mix 70% OH-Ap and 10% iodolform until uniform, and add silicone oil to this.
After adding 20%, the mixture was further thoroughly stirred and mixed. Thereafter, this mixture was filled into a plastic tube to produce a product.

When filling an extracted tooth with this material, by extruding the required amount using a tube, there is no need for kneading time or post-processing like with conventional materials of this type, and therefore it is quick and easy, and there is no waste of material. I was able to fill it. Subsequent X-ray examination revealed that this material reached the root canal and filled it tightly, and the tooth compatibility was very good.

As described above, the present invention has extremely high biocompatibility and safety compared to conventional filling materials of this type, has good ability to reach details, has antibacterial and sterilizing effects, It has benefits such as a wide range of applications, and the results can be confirmed by X-ray photography. Since the present invention material is in the form of one paste, there is no need for kneading, and by placing it in a container such as a tube,
It has the advantage that it can be used easily and economically in dental treatment.

Claims (1)

[Scope of Claims] 1. A dental root canal filling material compatible with teeth, characterized in that it contains hydroxyapatite, which is a tooth hard tissue component, as a main component and is given fluidity by mixing silicone oil as a subsidiary component. . 2. The tooth-compatible dental root canal filling material according to claim 1, wherein iodoform is added as a subsidiary component. 3. The tooth-compatible dental root canal filling material according to claim 1 or 2, wherein a silicone oil curing agent is added as a subsidiary component.