DE102017000443A1 - Soft, thermoplastic adhesive for dentures - Google Patents

Abstract

Denture adhesive according to the invention, consisting of at least 60% of a synthetic chewing gum base (gum base), as obtained from polyvinyl acetate and vinyl acetate / vinyl laurate copolymers.

Description

The invention relates to a novel composition for a denture adhesive consisting of a rubber-free synthetic chewing gum base (gum base) which underfills the prosthesis with a stable layer.

Under mucous membrane-borne total or partial prostheses u. a. due to pressure loads to shrinking processes. These atrophies of the mucosal bone bed are stronger, the worse the prosthesis sits. So it is necessary that usually after 2 years at the latest, e.g. a total prosthesis with plastic denture base material must be relined.

• - Die Prothese verliert ihren Halt, d.h. ein leichtes Vakuum kann unter der Prothesenbasis nicht mehr aufgebaut werden. Die Prothese saugt sich nicht mehr an und löst sich leicht von ihrem Lager.
• - Die Prothese „rutscht“ auf ihrem Lager bei Kaubewegungen hin und her, wodurch schmerzhafte Druck- und Scheuerstellen entstehen.
• - Der Prothesenträger reduziert dadurch die Kaubewegungen und den Kaudruck, wodurch die Nahrung nur noch unzureichend zerkleinert wird.

Shrinkage processes under prostheses has various negative effects, such as:

• - The prosthesis loses its hold, ie a slight vacuum can not be built under the denture base. The prosthesis no longer sucks and dissolves easily from its warehouse.
• - The prosthesis "slips" on her bed during chewing movements back and forth, causing painful pressure and chafing.
• - The denture wearer thereby reduces the chewing movements and the chewing pressure, whereby the food is crushed only insufficiently.

It is desirable for total dentures to adhere stably to their mucosal bone due to adhesion forces and negative pressure. The suction effect is achieved during the production of prostheses by means of special impression techniques. This so-called functional impression is intended to ensure that the mucous membrane in the region of the edge of the prosthesis retains intimate contact with the functional edge of the prosthesis in all movements and, in conjunction with the saliva film, maintains the adhesion and suction effect. Particularly in the case of total mandibular prostheses, a functional shaping of the outer marginal areas is important for the retention of the prosthesis, since the prosthesis is additionally stabilized by muscle deposits.

If the grip of a prosthesis has deteriorated, prosthesis adhesives are often used by the prosthesis wearer, which are commercially available in powder or paste form. They are able to improve the grip of the prosthesis in the short term. The adhesives swell up in the saliva, fill gaps and increase the adhesion. However, conventional denture adhesives are saliva-soluble, so that the adhesive effect decreases relatively quickly again. The adhesive residues are usually swallowed, thus reach the digestive tract and can lead to complaints. This is particularly problematic in total mandibular prostheses, which are permanently washed around by the saliva due to the position of the salivary glands.

• - hauptsächlich aus Bestandteilen besteht, die speichelunlöslich sind.
• - die durch Schrumpfungsvoränge entstandenen Hohlräume stabil wieder ausfüllt,
• - den Funktionsrand erneut so aufbaut, dass wieder ein Saugeffekt erzeugt wird,
• - die Außenflächen der Funktionsränder so ausformt, dass die Prothese durch Muskelauflagerungen stabilisiert wird.

It is therefore desirable to have a denture adhesive which

• - consists mainly of constituents insoluble in saliva.
• - stably replenishes the cavities created by shrinkage precursors,
• - rebuild the function edge so that a suction effect is generated again,
• - Forms the outer surfaces of the functional edges so that the prosthesis is stabilized by muscle deposits.

Most denture adhesives contain hydrocarbons such as paraffins, mineral oils and water-soluble polymers such as carboxymethyl cellulose or polymethyl vinyl ether. Denture adhesives containing alginates or olive oil are also known. Denture adhesives often contain toxicologically harmful substances, such as zinc compounds.

• - Die Prothese bekommt nach jedem Auftrag erneut eine stabile, unlösliche Unterfütterung.
• - Die Prothese erhält wieder durch Ausformung der Funktionsränder einen sicheren Halt beim Kauen und Sprechen.
• - Das Prothesenhaftmittel füllt die durch Schrumpfungsvorgänge aufgetretenen Spalten aus und verhindert ein „Rutschen“ der Prothese auf der Schleimhaut, wodurch Druckstellen und damit Schmerzen vermieden werden.
• - Es werden Schrumpfungsvorgänge des Schleimhaut-Knochengrundes reduziert, sodass Basiserneuerungen durch Unterfütterungen mit Prothesenmaterialien wesentlich weniger häufig erforderlich sind.
• - Das im Prothesenhaftmittel enthaltene Palmöl wirkt beruhigend auf Druckstellen bzw. gereizte Schleimhäute.
• - Das Prothesenhaftmittel kann mehrere Tage auf der Basis verbleiben.

It has now been found that the prosthesis adhesive according to the invention does not have the disadvantages of commercially available products and is distinguished by the following advantages:

• - The prosthesis gets after each order again a stable, insoluble relining.
• - The prosthesis receives again by shaping the functional edges a secure grip while chewing and speaking.
• The denture adhesive fills in the gaps created by shrinkage processes and prevents the prosthesis from "slipping" on the mucous membrane, thus avoiding pressure points and therefore pain.
• Shrinkage processes of the mucosal bone base are reduced, so that base restorations with relining with prosthetic materials are much less frequently required.
• - The palm oil contained in the denture adhesive has a calming effect on bruises or irritated mucous membranes.
• - The denture adhesive may remain on the base for several days.

The prosthetic adhesive according to the invention consists in addition to the known additives palm oil, glycerol and lecithin mainly from a gum base (gum base), which is composed of synthetic polymers and copolymers of Vinylacetaten- and laurates, and the known additives fat, wax and emulsifiers Example sold by the company Wacker Chemie AG, Burghausen, under the name CAPIVA. Preferred use is the Gum Base CAPIVA C 03.

Possible compositions of the prosthesis adhesive according to the invention:

• 70 to 120 g and preferably 100 g Capiva C 03 and particularly preferably 110 g
• 5 to 12 g and preferably 10 g of palm oil is preferred
• 3 to 10 g and preferably 8 g of glycerol
• 2 to 8 g and preferably 6 g of lecithin
• 8 to 12 g and preferably 10 g of water
• 2 to 12 g and preferably 8 g triacetin

A preferred composition is described in the following patent example 1:

Preparation of a denture adhesive

Mixture A

Mix 10 g palm oil, 8 g glycerin, 6 g lecithin and 10 g water intensively with an electric mixer.

Melt 110 g of Capiva C 03 at 120 degrees C and add the mixture A and mix thoroughly. Then add 8 triacetin and mix thoroughly.

Pour the still slightly flowable dough, which has been cooled to approximately 90 to 95 degrees C., into the syringe and allow it to cool.

Application of the Denture Adhesive from Example 1

• - First place the syringe in a bowl, pour boiling water over it and leave it there for 10 minutes.
• - Clean the denture, rinse and dry thoroughly.
• - After removing the syringe, dry it out of the water bath and remove the cap.
• - Place the denture adhesive directly from the syringe in a circular motion on all edges of the denture and, in the case of upper total dentures, also place a small amount on the palate surface.
• - Apply the applied material with your fingers.
• - Insert the prosthesis and carry out functional movements for approx. 10 minutes. Here, the denture adhesive optimally forms through the mouth temperature and spreads to the palate and alveolar ridge.
• - Before removing the denture after 10 minutes, rinse with cold water. Here, the material solidifies again, so that subsequently surpluses can be removed with a pair of scissors.
• - Immediately reinstall the denture.
• - If the layer is to be renewed, first carefully remove the old layer.

Claims (4)

Denture adhesive according to the invention, consisting of at least 60% of a synthetic chewing gum base (gum base), as obtained from polyvinyl acetate and vinyl acetate / vinyl laurate copolymers. According to the invention prosthetic adhesive after Claim 1 containing in addition to the synthetic polymers in the gum base the usual additives fat, wax and emulsifiers. According to the invention prosthetic adhesive after Claim 1 which contains palm oil, glycerin, lecithin and triacetin as modifiers in addition to the gum base. According to the invention prosthetic adhesive after Claim 1 in that the product CAPIVA C 03 (Wacker Chemie AG) preferably contains as gum base.