WO1999007329A1

WO1999007329A1 - Dental cement compositions and dental first aid kit comprising same

Info

Publication number: WO1999007329A1
Application number: PCT/FR1998/001738
Authority: WO
Inventors: Laurent Haddad
Original assignee: Laurent Haddad
Priority date: 1997-08-07
Filing date: 1998-08-04
Publication date: 1999-02-18
Also published as: FR2767055A1

Abstract

The invention concerns dental cement compositions to be used as material for provisionally luting dental prostheses which have come loose or as material for provisionally sealing dental cavities which have become unsealed, and a dental first aid kit containing such compositions. Said dental cement compositions consist of two constituents and are characterised in that they comprise: as first constituent, a powder obtainable from a filler material comprising mineral fillers and, optionally, organic fillers, by transforming at least 70 wt.% of the total weight of mineral fillers of said material into hydroxides by treating said mineral fillers with a mineral or organic acid and by calcining the treated fillers, then in reducing to powder the calcination residue and adding thereto, if required, the remainder of the mineral and organic fillers; as second constituent, a water soluble binder comprising one or several hydrocolloids in an aqueous phase.

Description

DENTAL CEMENT COMPOSITIONS AND EMERGENCY DENTAL KIT CONTAINING THE SAME

The present invention relates to dental cement compositions suitable for use as temporary sealing materials for dental prostheses that have been loosened or as temporary filling materials for dental cavities that have been unsealed, as well as to a first aid kit. dental emergency containing such compositions. The loosening of dental prosthesis and the loss of amalgam are frequent dental emergencies, which are often disabling by the functional or aesthetic genes, or even the pains, which they are likely to cause and which require that the subjects presenting a such an emergency go as quickly as possible to their attending dentist.

However, there are a number of circumstances in which it can be difficult, if not impossible, to quickly consult your treating dentist or another practitioner. This is particularly the case when the emergency occurs at night, at the weekend or during a period of leave or when it occurs while the subject is far away, due to professional constraints or by personal convenience, from the place of practice of his dentist or any dental office.

The Applicant therefore intends to offer means allowing to temporarily compensate for a dental emergency of the loosening type of a dental prosthesis or loss of an amalgam pending the intervention of a professional, without any risk. direct (aggravation of the lesions) or indirect (side effects and / or toxicity) for the patient, and which can be easily implemented by the patient himself or by a person close to him, even in the absence of special knowledge on their part in the field of dentistry.

To do this, the Applicant proposes to provide dental cement compositions making it possible to reseal a dental prosthesis that has become detached from its support or to re-seal a dental cavity that has lost its amalgam and this, effectively, but the effects of which are limited in time in order to avoid any prolonged self-treatment and any substitution for the truly appropriate therapy which must be implemented, in any case, as quickly as possible by a dentist.

Patient access to these products is advantageously ensured by making them available in a first aid kit, which, on the one hand, may also contain an analgesic composition for topical application capable of quickly relieving pain acute dental pain such as inflammation of the pulp, and, on the other hand, contains a leaflet including explanations and advice for their implementation as well as a warning clearly indicating to the user the need to consult a dentist as soon as possible. The present invention therefore has firstly for object a composition of dental cement with two components, characterized in that it comprises:

- As the first component, a powder capable of being obtained from a filler material comprising mineral fillers and, optionally, organic fillers, by transforming at least 70% by weight of the total weight of the mineral fillers of said hydroxide material by treatment of said mineral fillers with a mineral or organic acid and calcination of the fillers thus treated, then by reducing the residue from calcination to a powder state and by adding thereto, where appropriate, the rest of the mineral fillers and organic fillers; and - as a second component, a water-soluble binder comprising one or more hydrocolloids in an aqueous phase.

In accordance with the invention, the mineral fillers present in the filler material are advantageously chosen from chalk and calcium carbonates, silicas such as pure silica, hydrated silica, diatomaceous flour or levillites, clays such as white clay, green clay or pink clay, bentonites, aluminas and aluminum salts such as hydrated alumina or alums, water-insoluble metal oxides such as oxide zinc or titanium oxide, and mixtures thereof.

The organic fillers are, in turn, preferably fillers of vegetable origin and are chosen from powders of hard stone fruit pits such as apricot or peach kernel powders and hard shell fruit powders such as walnut or hazelnut shell powders. When such fillers are present in the filler material, they advantageously represent between 10 and 30% by weight of the total weight of said material.

According to the invention, the powder forming the first component of the dental cement composition is capable of being obtained by subjecting, at first, at least 70% by weight of the total weight of the mineral fillers of a fillers to an acid treatment, followed by calcination of the fraction of the charges thus treated. This acid treatment can advantageously be carried out by adding, to the mineral fillers, a strong acid such as hydrochloric acid or sulfuric acid, until the gaseous evolution of carbon dioxide is stopped, while calcination can be carried out according to the methods conventionally used for calcining mineral fillers, for example by heating in an oven, at a temperature between 800 and 1500 ° C. In a second step, the residue from the calcination is reduced to the powder state, for example by grinding in a ball mill or a ball mill, and the rest of the mineral charges of the fillers and organic fillers.

Also, according to the invention, the composition of dental cement comprises, as a second component, a water-soluble binder that contains one or more hydrocolloids in an aqueous phase.

Within the meaning of the present invention, the term “hydrocolloid” means any substance capable of developing, when it is dispersed in water, a colloidal solution or suspension and thus giving the water-soluble binder a gel texture.

The hydrocolloid (s) present in the water-soluble binder are advantageously chosen from natural gums such as gum arabic, guar gum, locust bean gum, tragacanth or gutta-percha, pectins, plant latexes such as latex from rubber trees or other laticiferous plants, vegetable resins such as coniferous or turpentine resins, and mixtures thereof.

The aqueous phase of the water-soluble binder can simply consist of water. However, in the case where it is desired to give this binder either aromatic properties or a particular topical effect, for example sedative, anti-inflammatory or bactericidal, this aqueous phase can advantageously consist of flower water such as rose water, orange blossom water or lemon balm water, or an aqueous extract of one or more plants known to have the desired effect.

Preferably, the ratio between the amounts of hydrocolloid (s) and of aqueous phase present in the water-soluble binder is between, by weight, between 30:70 and 70:30 and, preferably, between 40:60 and 60: 40. According to a first preferred embodiment of the invention, the dental cement composition is a composition for sealing a dental prosthesis and the filler material from which the powder is obtained comprises, in percentages by weight of the total weight of said material:

- 45 to 65% chalk

- 15 to 35% clay

- 10 to 20% zinc oxide - 3 to 7% hydrated silica

- 2.5 to 5% hydrated alumina, and

- 0.3 to 1.5% alum.

According to a particularly advantageous arrangement of this preferred embodiment, said filler material comprises, in percentages by weight of the total weight of said material:

- 50 to 60% chalk

- 8 to 15% green clay

- 8 to 15% white clay - 10 to 15% zinc oxide

- 3 to 7% hydrated silica

- 2.5 to 5% hydrated alumina, and

- 0.3 to 1.5% alum.

According to another preferred embodiment of the invention, the dental cement composition is a filling composition for a dental cavity and the filler material from which the powder is obtained comprises, in percentages by weight of the total weight of said material: - 45 to 60% chalk - 10 to 25% green clay

- 4 to 9% hydrated silica

- 3 to 6% hydrated alumina, and

- 10 to 30% powder of pits or fruit shells. In these two preferred embodiments, the water-soluble binder advantageously comprises, in percentages by weight of the total weight of said binder, 40 to 60% of gum arabic and 40 to 60% of water.

The dental cement compositions thus produced have numerous advantages. In fact, they make it possible to obtain, by mixing suitably chosen quantities of powder and water-soluble binder, cements which are in the form of a paste which is flexible, uniform, easy to apply both on the internal surfaces of a prosthesis only in a dental cavity. This paste is capable of hardening and drying in a short period of time (1 to 2 hours approximately under crown in the case of a sealing cement, 10 to 20 minutes approximately in the mouth in the case of a sealing cement) , so as to quickly and effectively seal a dental prosthesis or fill a dental cavity. In addition, it has both a low coefficient of expansion and a low coefficient of thermal transmission so that, once dry, it is insensitive to temperature variations which may occur in the mouth, especially during food intake, and does not transmit heat or cold to the prosthetic stump or the closed tooth. Said paste, moreover, has the property of dissolving in a few days (cement of sealing) or a few hours (sealing cement) so that the sealing or sealing is only very temporary.

In addition, due to the mineral or vegetable nature of their constituents, these dental cement compositions are completely harmless.

The present invention further relates to a first aid dental kit characterized in that it comprises an amount of each of the two constituents of at least one dental cement composition as defined above, suitably chosen to allow the realization one or more doses of dental cement.

According to the invention, the composition of dental cement, the constituents of which are present in the kit, may be a cement composition for sealing a dental prosthesis or a cement composition for filling a dental cavity.

As a variant, the first aid kit comprises an amount of each of the two constituents of a cement composition for sealing a dental prosthesis and an amount of each of the two constituents of a cement composition for filling a cavity dental, said quantities all being suitably chosen so as to allow the production of one or more doses of each of said cements.

According to a preferred embodiment of the invention, the dental first aid kit also comprises a suitably chosen amount of an analgesic composition for topical application, intended to relieve acute dental pain such as pain secondary to active caries or acute pulpitis.

According to an advantageous arrangement of this preferred embodiment, the analgesic composition for topical application comprises an extract of a plant or a mixture of plant extracts with local anesthetic and / or anti-inflammatory properties.

For the purposes of the present invention, the term “extract” means any product obtained by treating a plant so as to extract and concentrate the active principles which it contains. Thus, it can be either an aqueous extract, an alcoholic extract, a hydro-alcoholic extract, a hydro-glycolic extract, a hydro-glycerin extract, as well as a derivative such extracts such as dry extract, soft extract or nebuliser.

Advantageously, the plant or plants with local anesthetic and / or anti-inflammatory properties are chosen from plants containing, as active principle (s), salicoside and / or harpagoside, the latter having, in fact, the advantage of having both local anesthetic and anti-inflammatory properties.

Examples of salicoside plants include Salix alba or white willow and the various species of poplars. As for harpagoside plants, they are represented by Harpagophytum procu bens or devil's claw, Melli tis melissophylu or melitte, Aj uga reptans or creeping bugle, Leonorus cardiaca or motherwort or by Verbascum thapsus or white broth, all from the family of labiates.

According to another advantageous arrangement of this preferred embodiment, the analgesic composition further comprises an essential oil from a plant or a mixture of essential oils from plants rich in phenols, which make it possible to confer on said composition additional properties. of etching suitable for promoting, when this composition is applied to a prosthetic stump prior to the sealing of the corresponding prosthesis, the longevity of this sealing.

Plants rich in phenols which may be suitable for the invention are, for example, Junipéruε communie or juniper, Rosmarinus officinalis or rosemary, Ocimum basilicum or basil, or Artemisia dracunculus or tarragon.

According to a particularly preferred embodiment of the invention, the analgesic composition for topical application comprises a mixture of extract of Salix alba, of extract of Harpagrop ytu_τ! procumbens, essential oil of Ocimum basilicum and essential oil of Juniperus communis, all in sufficient quantities to obtain the desired analgesic and etching properties, optionally in a pharmaceutically acceptable solvent such as ethanol.

Such a composition, applied topically, has many advantages: on the one hand, it has a powerful analgesic action linked to the local anesthetic and anti-inflammatory properties of the extracts of Salix alba and of Harpagophytum procumbens, as well as the presence of essential oil of Juniperus communis which also has anesthetic and anti - inflammatory properties. It also has etching properties which are given to it by the essential oils of Juniperus communis and Ocimum basilicum. It is, moreover, endowed with a high bactericidal power by the presence of the essential oil of Juniperus communis whose bactericidal properties are well known. In addition, the fact that this composition has for components, extracts and essential oils of plants gives it a total innocuity which avoids any risk of undesirable effect even in case of misuse.

In accordance with the invention, the constituents of the dental cement composition (s) present in the kit and, if appropriate, the analgesic composition for topical application are present in individual packages of the vials, vials, ampoules, sachets or similar types. In the case where the kit comprises both a cement composition for sealing a dental prosthesis and a cement composition for filling a dental cavity and where these compositions comprise the same water-soluble binder, the latter may, as a variant , be present in the kit only in a single packaging for its use both for the production of sealing cement and that of sealing cement.

Preferably, the analgesic composition for topical application is packaged in a syringe. dispenser, provided with a curved tip to allow easy application of this composition, regardless of the area of the dental arches where it is desired to apply it. In all cases, the packages advantageously include marking means allowing a secure identification of the products which they contain by the user, including by the non-professional user of dentistry for whom the kit is intended and whose attention can be altered by stress secondary to the dental problem that affects it, or by someone close to them.

In accordance with the invention, the dental first aid kit also includes a notice comprising explanations and advice on the method of use of the composition or compositions which it contains, as well as a warning clearly indicating the user the need to consult a practitioner as soon as possible.

Advantageously, the first aid kit in accordance with the invention may also comprise one or more accessories suitable for facilitating the use of the composition or compositions which it contains. The kit can thus include, for example:

* one or more measuring spoons to ensure precise dosing of the products;

* a mirror to facilitate the vision of the interior of the mouth;

* a spatula block consisting, for example, of a sheet of plasticized paper a few cm long by a few cm wide, accompanied by a spatula to allow easy mixing of the constituents of the dental cement composition (s) available in the kit;

* in the case where the kit contains a cement composition for sealing a dental prosthesis:

- a salivary cotton to allow, on the one hand, the cleaning of the prosthetic support before the installation of the dental prosthesis and, on the other hand, the application of pressure on this prosthesis, once it is put in place ;

- a toothpick to remove the pouring cement cement likely to surround the base of the dental prosthesis after its installation; * in the case where the kit contains a cement composition for filling a dental cavity:

- dental floss to eliminate food compaction from the cavity before it is closed; - a stuffer to pack the filling cement after having introduced it into the dental cavity to be closed; and

* in the case where the kit contains an analgesic composition for topical application: - a sponge to allow a prolonged application of this composition on the painful area.

Additionally, the first aid kit according to the invention may also include one or more compositions suitable for alleviating dental emergencies other than loosening. a prosthesis, the loss of an amalgam or the occurrence of pain secondary to active caries or acute pulpitis, such as, for example, a composition capable of alleviating pain generated by an mouth ulcers lesion of the canker sore type , cut, burn, irritation, ..., or a composition intended to soothe in a child the gingival pains linked to teething.

In addition to the foregoing provisions, the invention also comprises other provisions which will emerge from the additional description which follows and which refers to exemplary embodiments of dental cement compositions and of an analgesic composition for topical application in accordance with 1 ' Invention and highlighting of their properties. It goes without saying, however, that these examples are given solely by way of illustrations of the subject of the invention, of which they in no way constitute a limitation.

EXAMPLE 1: PRODUCTION OF A SEALING DENTAL CEMENT COMPOSITION

A dental cement cementing composition in accordance with the invention is produced by preparing:

* on the one hand, a powder from a filler material comprising the following composition: • Chalk (Pharmacopoeia quality) 54% w / w

• Green clay (from Haute-Provence) 13.1% w / w

• White clay (from Haute-Provence) 12% w / w

• Zinc oxide (Pharmacopoeia quality) 11.5% w / w

• Hydrated silica (Pharmacopoeia quality) 5% w / w "Hydrated alumina (Pharmacopoeia quality) 3.7% w / w • Alum (Pharmacopoeia quality) 0.7% w / w and,

* on the other hand, a water-soluble binder in the form of a liquid and comprising, in weight percentages, 50% of gum arabic (Acacia gu mi of Pharmacopoeia quality) and 50% of distilled water.

The powder is prepared by operating as follows:

- the chalk is submitted together with hydrated silica, zinc oxide, hydrated alumina, alum and

30% of a mixture composed of green and white clays when sprayed so as to obtain an intimate mixture of these different elements;

- A solution of 3N hydrochloric acid is added dropwise to the mixture thus obtained until the gas evolution of C0 _{2 is} stopped, then it is washed one or more times with distilled water, each washing being followed by filtration, to remove the chlorine it contains, elimination which can be demonstrated by a reaction with silver nitrate;

- the solid phase • collected during the last filtration is subjected to calcination by placing it in an oven, the internal temperature of which is increased until it reaches a temperature of 1200 ° C. in about one hour; then, when this temperature is reached, the residue is removed from the calcination of the oven and subjected to grinding, followed by sieving to obtain a powder formed of particles of approximately 0.5 mm in diameter, and added to the resulting powder the rest of the mixture of white clay and green clay. The water-soluble binder is obtained by dispersing the gum previously reduced to powder by cold spraying in water and with stirring, and then allowing the mixture to swell for 24 hours before subjecting it to filtration on canvas. .

The powder and the water-soluble binder thus prepared are ready to be used as cement for sealing a dental prosthesis. To do this, simply incorporate, for example on a mixing tablet and using a spatula, the water-soluble binder in the powder in a ratio comprised, by volume, between approximately 1: 2 and 1: 3

(i.e. 1 ml of water-soluble binder for 2 to 3 ml of powder) and mix until homogenized.

A cement is then obtained which is in the form of a flexible, uniform paste, which can be easily applied, also using a spatula, to the internal surfaces of a dental prosthesis, and which, after setting place the prosthesis on the prosthetic stump, hardens and dries in 1 to 2 hours, thus ensuring the sealing of this prosthesis.

EXAMPLE 2 PRODUCTION OF A DENTAL CEMENT COMPOSITION FOR FILLING A dental cement composition for filling is produced in accordance with the invention by preparing:

* on the one hand, a powder from a filler material comprising the following composition:

• Chalk (Pharmacopoeia quality) 52% w / w "Green clay (from Haute-Provence) 17.4% w / w • Hydrated silica (Pharmacopoeia quality) 6.94% w / w • Hydrated alumina (Pharmacopoeia quality) 4.91% w / w • Apricot kernel powder 18.75% w / w using a procedure similar to that described in Example 1 above, except that the apricot kernel powder is only used after sieving, and is added to the powder resulting from the latter together with the 70% d green clay which is not subjected to hydrochloric acid treatment and calcination; and

* on the other hand, a water-soluble binder identical to that prepared in accordance with Example 1.

The powder and the water-soluble binder thus prepared are ready to be used as cement for filling a dental cavity.

To do this, it suffices to mix, as described in Example 1, the water-soluble binder and the powder in a ratio comprised, in volumes, between approximately 1: 2 and 1: 3 until homogenization. Here too, a flexible and uniform paste is obtained which can easily be introduced into a dental cavity, for example using a spatula, until it completely fills this cavity, and which hardens and dries in 10 to 20 minutes. EXAMPLE 3 PRODUCTION OF AN ANALGESIC COMPOSITION FOR TOPICAL APPLICATION

An analgesic composition for topical application according to the invention is produced, which is in the form of a liquid and comprising the following composition: “Hydro-alcoholic extract (70 °) of Salix alba (HERBA GALENICA Company) 69% v / v • Nebulized secondary roots of Harpagophytum procumbens

(HERBA GALENICA company) 2.8% w / v "Juniperus communis essential oil 5% v / v

• Essential oil from here. jbasilicum 3.2% v / v • Ethanol at 90 ° q.s.p 100% by operating as follows:

- Dissolving the nebulized secondary roots of ¹ Harpagophytum, which is in the form of a dry powder, in the hydro-alcoholic extract of Salix alba;

- this extract is added to ethanol at 90 ° C previously added with essential oils of Junipérus communis and Ociϋiuπ. basilicum;

- The two phases thus obtained are mixed for 3 hours with gentle stirring, then allowed to settle for 6 hours and filtered on paper.

EXAMPLE 4 EVIDENCE OF THE PROPERTIES OF DENTAL CEMENT COMPOSITIONS AND OF THE COMPOSITION

ANALYSIS FOR TOPICAL APPLICATION IN ACCORDANCE WITH THE INVENTION

1) Longevity of the seals made using a sealing cement composition after application of an analgesic composition: The longevity of the seals made using a sealing cement composition produced in accordance with Example 1, was tested in 254 patients with loosening of dental prosthesis (bridge or crown). These patients were divided into four groups A, B, C and D, according to the quality of adaptation of their dental prosthesis compared to their prosthetic stump, group A corresponding to patients with a well adapted prosthesis, group B corresponding to patients with a moderately suitable prosthesis and groups C and D corresponding to patients with a poorly adapted prosthesis and a very badly adapted prosthesis respectively. In all cases, the seals were made after application, for 5 minutes, of a small sponge 2 cm in surface, soaked with an analgesic composition produced in accordance with Example 3, on the prosthetic stump and: mixing, just before sealing, quantities of water-soluble binder and powder suitably chosen according to the size of the prosthesis, in a volume ratio of 1: 2 (i.e. 1 ml of binder for 2 ml of powder) up to '' to obtain a homogeneous paste;

- by coating the internal surfaces of the prosthesis to be resealed with the paste thus obtained; then

- by immediately placing the prosthesis thus coated on the prosthetic stump and asking the patient to exert pressure on the prosthesis by tightening the jaws for 6 minutes.

All the patients abstained from eating and drinking for one hour after fitting their prosthesis. The longevity of the seals thus produced was appreciated by the duration of the holding of the prostheses on their prosthetic stump. Table 1 below shows the results obtained for each group of patients.

TABLE 1

These results show that, if the longevity of the seals made using a cement cement composition in accordance with the invention varies according to the quality of adaptation of the prosthesis vis-à-vis the prosthetic stump, it is in any event limited, since in all cases less than 96 hours.

The tolerance of the putty composition has, moreover, been appreciated functionally ^'and anatomically. No patient complained of burning, tingling or pain and the intraoral examination showed no gingival reaction. 2) Longevity of fillings made with a filling cement composition:

The longevity of fillings made with a prepared filling cement composition in accordance with Example 2, was tested in 68 patients who lost an amalgam.

The fillings were performed by the patients themselves, by mixing approximately 1 ml of water-soluble binder and 2 ml of powder until a homogeneous paste was obtained, then by introducing into the dental cavity a sufficient quantity of paste for completely fill this cavity.

In 66 patients, the longevity of fillings was found to be very satisfactory since approximately 2 hours - that is to say the time necessary for food intake -, while in 2 patients, this longevity was only around 30 minutes due to misuse. Again, the cement filling was extremely well tolerated by all the patients who reported and showed no adverse effects.

3) Analgesic and Etching Properties of the Analgesic Composition: The analgesic properties, by topical application, of an analgesic composition prepared in accordance with Example 3, were tested in 90 patients suffering from pain associated with developing caries. and 90 patients suffering from acute pulpitis, assessing in each of them on the one hand, the time of action of this composition (time required to obtain pain relief) and, on the other hand, its duration of action (duration of relief).

The results are expressed in Tables 2 and 3 below. TABLE 2

TABLE 3

The etching properties of the analgesic composition were, moreover, tested in 10 patients with a loosening of the crown and chosen from subjects with a crown poorly suited to their coronary stump, by appreciating the difference in longevity of the seals made with a cement. sealant prepared in accordance with Example 1 and used under the conditions described above, with or without prior application of a 2 cm surface sponge, soaked in analgesic composition on the prosthetic stump.

The results obtained are expressed, in the form of averages, in Table 4 below.

TABLE 4

These results show that the prior application of the analgesic composition on the surface of the dental stump to receive the crown makes it possible to obtain a longevity of crown seals on average twice as much as that obtained without application of this composition.

The invention is in no way limited to the embodiments which have just been described explicitly; on the contrary, it embraces all the variants which may come to mind of the technician in the matter, without departing from the scope or the scope of the present invention.

Claims

1. Two-component dental cement composition, characterized in that it comprises:

- As the first component, a powder capable of being obtained from a filler material comprising mineral fillers and, optionally, organic fillers, by transforming at least 70% by weight of the total weight of the mineral fillers the said hydroxide material by treatment of the said mineral fillers with a mineral or organic acid and calcination of the fillers thus treated, then by reducing the residue from the calcination to a powder state and by adding thereto, where appropriate, the rest of the mineral fillers and organic fillers; and - as a second component, a water-soluble binder comprising one or more hydrocolloids in an aqueous phase.

2. Composition according to claim 1, characterized in that the mineral fillers present in the filler material are chosen from chalks and calcium carbonates, silicas, clays, bentonites, aluminas and aluminum salts, oxides water-insoluble metals, and mixtures thereof.

3. Composition according to claim 1 or claim 2, characterized in that the organic fillers present in the filler material are fillers of vegetable origin chosen from powders of fruit pits with hard pits and powders of fruit shells hard-shelled.

4. Composition according to any one of claims 1 to 3, characterized in that the organic fillers present in the filler material represent between 10 and 30% by weight of the total weight of said material.

5. Composition according to any one of claims 1 to 4, characterized in that the hydrocolloid (s) present in the water-soluble binder are chosen from natural gums, pectins, plant latexes, plant resins, and their mixtures.

6. Composition according to any one of claims 1 to 5, characterized in that the ratio between the quantities of hydrocolloid (s) and of aqueous phase present in the water-soluble binder is comprised, by weight, between 30:70 and 70 : 30 and, preferably, between 40:60 and 60:40.

7. Composition according to any one of claims 1 to 6, characterized in that, said composition being a composition for sealing a dental prosthesis, the filler material contains, in percentages by weight of the total weight of said material:

- 45 to 65% chalk

- 15 to 35% clay - 10 to 20% zinc oxide

- 3 to 7% hydrated silica

- 2.5 to 5% hydrated alumina, and

- 0.3 to 1.5% alum.

8. Composition according to claim 7, characterized in that the filler material contains, in percentages by weight of the total weight of said material:

- 50 to 60% chalk - 8 to 15% green clay

- 8 to 15% white clay

- 10 to 15% zinc oxide

- 3 to 7% hydrated silica

- 2.5 to 5% of hydrated alumina, and - 0.3 to 1.5% of alum.

9. Composition according to any one of claims 1 to 6, characterized in that, said composition being a filling composition for a dental cavity, the filler material comprises, in percentages by weight of the total weight of said material:

- 45 to 60% chalk

- 10 to 25% green clay

- 4 to 9% hydrated silica

- 3 to 6% of hydrated alumina, and - 10 to 30% of powder of pits or fruit shells.

10. Composition according to any one of claims 7 to 9, characterized in that the water-soluble binder advantageously comprises, in percentages by weight of the total weight of said binder, 40 to 60% of gum arabic and 40 to 60% of water.

11. First dental emergency kit, characterized in that it comprises an amount of each of the two constituents of at least one dental cement composition according to any one of claims 1 to 10, suitably chosen for allow the realization of one or more doses of dental cement.

12. Kit according to claim 11, characterized in that it comprises an amount of each of the two constituents of a cement composition for sealing a dental prosthesis and an amount of each of the two constituents of a cement composition of filling a dental cavity, said quantities all being suitably chosen so as to allow the production of one or more doses of each of said cements.

13. Kit according to claim 11 or claim 12, characterized in that it further comprises a suitably chosen amount of an analgesic composition for topical application.

14. Kit according to claim 13, characterized in that the analgesic composition for topical application comprises one or more plant extracts with local anesthetic and / or anti-inflammatory properties.

15. Kit according to claim 14, characterized in that the plant or plants with local anesthetic and / or anti-inflammatory properties are chosen from plants containing, as active ingredient (s), salicoside and / or l 'harpagoside.

16. Kit according to claim 14 or claim 15, characterized in that the analgesic composition for topical application further comprises an essential oil from a plant or a mixture of essential oils from plants rich in phenols.

17. Kit according to any one of claims 13 to 16, characterized in that the analgesic composition for topical application comprises a mixture of Salix alba extract, Harpagophytum procumbens extract, essential oil of Ocimum basilicum and essential oil of Juniperus communis, all in sufficient quantities to obtain the desired analgesic and etching properties, optionally in a pharmaceutically acceptable solvent.

18. Kit according to any one of claims 13 to 17, characterized in that the analgesic composition for topical application is packaged in a dosing syringe, provided with a curved tip to allow easy application of this composition, whatever the dental arch area where you want to apply it.

19. Kit according to any one of claims 11 to 18, characterized in that it further comprises one or more accessories suitable for facilitating the use of the composition or compositions which it contains.