摘要:
A primer used for pre-treating the surfaces of a prosthetic, which exhibits a large adhering force at the time of adhering a prosthetic of metal oxide ceramics to an object to be joined by using an adhesive such as a dental cement, the large adhering force being maintained for extended periods of time even in a severe environment such as in an oral cavity. A primer composition for metal oxide ceramics includes (A) a polymerizable monomer component containing 5% by mass or more, preferably, 5% by mass to 80% by mass of an acidic group-containing polymerizable monomer as represented by a 11-methacryloyloxy-1,1-undecanedicarboxylic acid and a rest of a polymerizable monomer without acidic group, such as triethylene glycol dimethacrylate; (B) polyvalent metal ions resulting from a titanium tetrabutoxide or the like; and (C) an organic solvent such as acetone or ethyl alcohol, wherein water is not substantially contained.
摘要:
Described herein are all-natural compositions and methods of using them for removing denture adhesive from both the denture apparatus and the oral cavity. The compositions comprise acetic acid and water. The invention includes wipes premoistened with a composition of the invention.
摘要:
A palate-free upper denture comprising a denture base formed of an acrylic resin having (i) a lower portion bearing a plurality of downwardly protruding teeth; (ii) an upper portion defining an upper surface so shaped as to receive in retentive intimate engagement complementary peripheral gingiva portions of the upper mouth; and (iii) a lightweight metallic mesh embedded in said acrylic resin and usable in an amount to allow of satisfactory retention. The denture overcomes prior art drawbacks by allowing significant reduction in the amount of acrylic needed while providing sufficient structural integrity and acceptable upper denture retention.
摘要:
The present invention provides a composition having sufficient strength and softness and excellent resistance against coloring, which is suited for use as a dental soft relining material. The present invention relates to a dental soft relining material which comprises 100 parts by weight of an organopolysiloxane (A) having in a molecule thereof at least two organic groups with a terminal unsaturated bond, an organohydrogenpolysiloxane (B) having in a molecule thereof at least three SiH groups, in such an amount that a ratio of the total number of SiH groups of (B) to the total number of terminal unsaturated bonds present in the organopolysiloxane molecules of (A) is from 0.5 to 5, a catalytic amount of a catalytic substance (C) for hydrosilylation reaction, 10 to 300 parts by weight of polyorganosilsesquioxane particles (D), and 1 to 50 parts by weight of hydrophobic silica particles (E) having a number of silanol groups per a unit surface area of not greater than 1/nm.sup.2 so that a hydrophobic index is not smaller than 60%, said hydrophobic index being defined by a minimum methanol amount (concentration) necessary for completely suspending said silica particles in a methanol aqueous solution.
摘要:
The use of a hydrophobic oleogel of essentially temperature-independent viscosity and consistency as a carrier base substance in an adhesive for dental prostheses is disclosed. The hydrophobic oleogel here is preferably a viscous paraffin in combination with amorphous polyethylene, with physical properties resulting from its preparation.
摘要:
Disclosed are denture adhesive compositions possessing improved aesthetics and comprising a component which provides for easy removal of the adhesive from the denture and a hydrophilic powder.
摘要:
An adherent insert for artificial teeth consists of a nonwoven fabric, which is impregnated with an adhesive.In order to ensure a strong and persistent adhesiveness, the nonwoven fabric is impregnated with an adhesive which consists of a viscous mixture of alginate and/or carboxymethylcellulose, polyvinyl acetate and a solvent consisting of glycerine triacetate or propylene glycol.
摘要:
A denture liner composition is provided comprising a methacrylate polymer and/or copolymer in powder form to be wetted by a liquid composition containing dimethacrylate, butyl methacrylate, and long chain methacrylate monomers, the mixture setting upon wetting and being polymerized by visible light and chemical action. A method for using the composition in denture liner formation is also provided.
摘要:
A method of improving the adhesion of an adhesive to the surface of hard tissue. Before the adhesive is applied, the hard tissue surface is primed with a polybiguanide or an addition salt thereof, or is pretreated with an aqueous solution of a magnesium salt and then primed with a primer selected from a long chain alkyl quaternary ammonium salt, a bisbiguanide, an acid addition salt of a bisbiguanide, a polybiguanide, and an acid addition salt of polybiguanide.
摘要:
The present invention pertains to denture adhesive compositions comprising a substantially anhydrous mixture, in percentages by weight, of an adhesive component comprised of a mixture of (a) from about 29 to about 34% of a mixed, partial calcium/sodium salt of a methyl vinyl ether-maleic anhydride-type copolymer, and (b) from about 22 to about 26% sodium carboxymethylcellulose; a vehicle component comprises of a mixture of (c) from about 20 to about 26% petrolatum and from about 15 to about 24% mineral oil; and a hydration and tackifier component comprised of (d) from about 0.5 to about 2% silicon dioxide and (e) from about 1 to about 3% poly(ethylene oxide) homopolymer. The present invention also pertains to methods by which these denture adhesive compositions may be prepared.