464 results about "Tooth caries" patented technology

A method for forming an enhanced image of tooth tissue for caries detection obtains fluorescence (50) and reflectance (52) image data from a tooth (20). Each pixel in the fluorescence image data is combined with its corresponding pixel in the reflectance image data by subtracting an offset to the reflectance image data value to generate an offset reflectance image data value, and then computing an enhanced image data value according to the difference between the fluorescence image data value and the offset reflectance image data value, whereby the enhanced image (64) is formed from the resulting pixel array of enhanced image data values.

The present invention relates to oral care compositions which provide a means to deliver actives which are useful in the prevention, treatment and / or management of dental and related tissue conditions, including dental caries, dental cavities, microbial flora, tartar, periodontal and related gum disease. In addition, the present invention may be used in the healthy maintenance of teeth and gums. Further aspects of the present invention are related to the present compositions being useful to whiten teeth and otherwise favorably impact the cosmetic appeal of the teeth and gums of a subject or patient. A further aspect of the present invention is directed to the inclusion of effective amounts of colostrum in dental care compositions for the unexpectedly high efficacy such formulations provide in inhibiting, reducing or otherwise preventing microbial growth, dental caries, plaque, cavities and gum disease, including periodontal disease. The use of colustrum with other enzymes as otherwise described herein represents a particularly preferred embodiment for use in the present invention because of the unexpected antimicrobial activity exhibited by the enzyme combination.

Methods and apparatuses for generating a model of a subject's teeth. Described herein are intraoral scanning methods and apparatuses for generating a three-dimensional model of a subject's intraoral region (e.g., teeth) including both surface features and internal features. These methods and apparatuses may be used for identifying and evaluating lesions, caries and cracks in the teeth. Any of these methods and apparatuses may use minimum scattering coefficients and / or segmentation to form a volumetric model of the teeth.

The invention relates to a hand-mouth baby wet tissue and a preparation method thereof. The hand-mouth baby wet tissue is composed of compound wet tissue liquid and non-woven fabrics for holding the compound wet tissue liquid, wherein every 100 parts of the compound wet tissue liquid comprises the following components in percent by weight: 0.01%-7.5% of a sweetening agent, 0.01-2.0% of a preservative, 0.01%-2.0% of a cleaning agent, 0.05%-5.0% of a solubilizer, 0-10.0% of a humectant, 0-5.0% of a skin care agent, 0-5.0% of an acidity regulator, 0-5.0% of essential oil, 0-5.0% of a stabilizer, 0-1.0% of natural essence, and the balance of pure water. The hand-mouth baby wet tissue has the advantages that edible sweetening agent is added into the compound wet tissue liquid to promote spittle secretion of babies, relieve the drop of pH value in the oral cavity and prevent the formation of decayed teeth. The product formula is stable and safe, and the material components are non-toxic. The formula is safe, non-irritant and non-corrosive, so that the allergic risks are reduced to be the lowest. The hand-mouth baby wet tissue can be used for cleaning the hands and mouths of an infant, infant tableware and other infant supplies and toys.

A camera head of a dental camera for detecting caries in an interdental space has an illuminating device for illuminating a tooth adjacent to the interdental space, which includes an infrared light source. The camera head further includes optics which have an image plane and an object plane, wherein an image sensor is located in the image plane, and the object plane divides the space into two half spaces, wherein a first half space contains the optics and is located in front of the object plane, and a second half space is located behind the object plane, both as seen from the optics. The illuminating device and the optics are designed and arranged with respect to one another in such a way that the illuminating device is arranged in the first half space and infrared light exiting the illuminating device is aimed in the direction of the second half space.

A method for forming an enhanced image of tooth tissue for caries detection obtains fluorescence (50) and reflectance (52) image data from a tooth (20). Each pixel in the fluorescence image data is combined with its corresponding pixel in the reflectance image data by subtracting an offset to the reflectance image data value to generate an offset reflectance image data value, and then computing an enhanced image data value according to the difference between the fluorescence image data value and the offset reflectance image data value, whereby the enhanced image (64) is formed from the resulting pixel array of enhanced image data values.

A method for caries detection uses an image capture device (30, 32) to obtain fluorescence image data from the tooth (20) by illuminating the tooth to excite fluorescent emission. A first enhanced image of the tooth is then obtained by illuminating the tooth at a first incident angle, obtaining a back-scattered reflectance image data from the tooth tissue, and combining the back-scattered reflectance image data with the fluorescence image data. A second enhanced image of the tooth is then obtained by illuminating the tooth at a second incident angle, obtaining a back-scattered reflectance image data from the tooth tissue, and combining the back-scattered reflectance image data with the fluorescence image data. The first and second enhanced images are then analyzed to select and display the best-contrast image. This method provides high contrast images for carious regions (58) on all tooth surfaces.

Disclosed are oral hygiene regimens comprising a plurality of steps involving the use of two or more oral care products containing actives effective to provide one or more benefits including cleaning, antimicrobial, antiplaque, anticaries, anti-calculus, anti-demineralizing, anti-erosion, antisensitivity / desensitizing, whitening, surface conditioning, polishing, and pH-balancing, wherein the plurality of steps are conducted and sequenced for maximizing delivery of oral care actives to target surfaces of a subject's oral cavity thereby achieving optimum oral health and hygiene benefits. In one aspect, a regimen comprises at least once daily of each of the following steps:(a) applying an antimicrobial dentifrice to oral cavity surfaces, and(b) rinsing the oral cavity with an antimicrobial mouthrinse,wherein at least one of steps (a) and (b) is conducted prior to retiring at night. Preferably the regimen comprises as step (c) treating interproximal, gingival and subgingival areas of the oral cavity using an interproximal device selected from dental floss, floss pick, dental tape, and proxy brush, wherein step (c) is conducted immediately before or immediately after one or both of steps (a) and (b).

A system and a method for training and utilizing deep convolutional neural networks to perform diagnostic and image enhancement operations on images of dentition uses digital images and other auxiliary parameters as inputs for a convolutional neural network. The neural network can output a tooth segmentation map, tooth identifiers, a probability map indicating the presence of caries, cavities or other dental anomalies / conditions, and recommended parameters for use in image enhancement algorithms.

Together with other accessory products, includes a mixture of ion-exchange resins, cationic and anionic, charged with Ca2+, F- and PO43- ions, in an approximate molar ratio of 2:1:1, respectively. Particularly preferred is a material in which the resins also have a charge of Zn2+ ions representing a proportion of less than 1%, preferably close to 0.2% of the dry weight of the resin. The preferred resins are those whose base is cross-linked polystyrene with 2-14% divinylbenzene. The material is useful as first filler in the treatment of caries, especially deep caries, leading to remineralization of the dentin with a composition very close to the original composition, together with high microhardness. It is also useful as a component of dentifrice products such as pastes, elixirs and dental floss.

A human oral care composition, includes safe and effective amounts of the fluoride ion and stabilized chlorine dioxide, that may take the form of a paste, gel, rinse, spray, powder, varnish or similar that reduces demineralization and promotes remineralization of teeth. The method includes the topical application of the composition to the human oral cavity (including but not limited to the teeth, gingiva, and tongue), preferably at least once daily, to enhance the anti-caries effect of fluoride by released chlorine dioxido compromising any biofilm present.

The present invention provides a novel composition of matter comprised of a mixture of two specific classes of compounds—Free-B-Ring flavonoids and flavans—for use in the prevention and treatment of diseases and conditions associated with mouth, gums and teeth. This composition of matter simultaneously inhibits cyclooxygenase (COX) and lipoxygenase (LOX) enzymatic activity and reduces cytokine production at the mRNA level in normal, aged and damaged periodontal cells and tissues. This invention further provides a method for the prevention and treatment of diseases and conditions of the mouth, gums and teeth. The method for preventing and treating diseases and conditions of the mouth, teeth and gums is comprised of administering to a host in need thereof a therapeutically effective amount of a composition comprising a mixture of Free-B-Ring flavonoids and flavans synthesized and / or isolated from a single plant or multiple plants, preferably in the Scutellaria, Oroxylum, Acacia or Uncaria genus of plants and pharmaceutically and / or cosmetically acceptable carriers. Finally the present invention provides a method for the prevention and treatment of diseases and conditions of the mouth, teeth or gums, including but not limited to periodontal diseases, such as gingivitis, periodontitis, pulpitis, periodontal conditions caused by the physical implantation of oral dentures, trauma, injuries, bruxism, neoplastic and other degenerative processes; material alba, pellicles, dental plagues, calculus, and stains. Use of the composition described herein also affords the benefit of maintaining optimum saliva production and pH, minimizing bacterial growth, reducing the formation of pellicles and plague, inhibiting tooth decalcification and tooth caries (decay), promoting remineralization, which yields healthy gums, whitening teeth, maintaining healthy oral hygiene and reducing oral malodour (halitosis).

The invention belongs to the scientific and technical field of oral medicine and oral health, and particularly relates to an oral health-care agent capable of clearing away heat and toxic materials, and a preparation method thereof. The oral health-care agent contains a food-grade heat-clearing and detoxicating prescription, an anti-ulcer agent, a caries-prevention agent, a cell adhesion moisturizer, a natural antibacterial and anti-inflammatory agent and an oral health-care agent, preferably, the preparation further contains a preservative, more preferably, the preparation further contains apreparation-acceptable safety carrier or excipients; and all the ingredients are scientifically prepared and optimized to obtain a group of safety and multi-effect compositions which not only can clear away heat and toxic materials and is antibacterial and anti-inflammatory, but also can prevent tooth and periodontium and other oral diseases, and then a convenient and practical oral health-care agent is prepared by adopting a mild technological method. The oral health-care agent capable of clearing away heat and toxic materials not only has medicine efficacy, but also has the safety of health-care food, and is convenient to use, good in efficacy and fast in effect.

The invention provides an oral antibacterial composition containing nisin and polylysine. According to the composition, the growth of oral pathogenic bacteria such as porphyromonas gingivalis, actinobacillus actinomycetemcomitans, streptococcus mutans, lactic acid bacillus, staphylococcus aureus and candida albicans can be effectively inhibited, and tooth decay, gingivitis, periodontitis, ozostomia and the like can be prevented; the composition can be prepared into toothpaste, mouth wash, refreshing and tasting chips and chewing gum which are used for preventing and treating oral diseases. Meanwhile, the invention provides a preparation method of the compositions such as the toothpaste, the mouth wash, the refreshing and tasting chips and the chewing gum. The oral antibacterial composition prepared through the method can prevent and treat various oral diseases and has no toxic and side effect and allergy or stimulation phenomenon on a human body.

An apparatus for obtaining an image of a tooth having at least one light source providing incident light having a first spectral range for obtaining a reflectance image (122) from the tooth and a second spectral range for exciting a fluorescence image (120) from the tooth. A polarizing beamsplitter (18) in the path of the incident light from both sources directs light having a first polarization state toward the tooth and directs light from the tooth having a second polarization state along a return path toward a sensor (68), wherein the second polarization state is orthogonal to the first polarization state. A first lens (22) in the return path directs image-bearing light from the tooth toward the sensor (68), and obtains image data from the portion of the light having the second polarization state. A long-pass filter (15) in the return path attenuates light in the second spectral range.

The invention provides a gargle tablet which takes the shape of a solid plate and pertains to oral cavity caring products which disperses when in mouth. The gargle tablet comprises membrane-forming agent, fresher, emulsifier, foaming cleanser and abradant, with function of killing bacterium, cleaning oral cavity, removing smell and preventing decayed tooth and being convenient for carrying and easy for use. The invention also provides a preparation method of the gargle tablet.

Phosphopeptides containing the Ser(P) cluster sequence motif Ser(P)-Ser(P)-Ser(P)-Glu-Glu- can stabilise their own weight in amorphous calcium phosphate (ACP) [Ca3(PO4)1.87(HPO4)0.2xH2O] and amorphous calcium fluoride phosphate (ACFP) [Ca8(PO4)5FxH2O]. The amorphous phases stabilised by the phosphopeptides are an excellent delivery vehicle to co-localise Ca, F, and phosphate at the tooth surface in a slow-release amorphous form producing superior anticaries efficacy. These amorphous phases stabilised by the phosphopeptides also have utility as dietary supplements to increase calcium bioavailability and to help prevent diseases associated with calcium deficiencies.

Phosphopeptides containing the Ser(P) cluster sequence motif Ser(P)-Ser(P)-Ser(P)-Glu-Glu- can stabilize their own weight in amorphous calcium phosphate (ACP) [Ca3(PO4)1.87(HPO4)0.2xH2O] and amorphous calcium fluoride phosphate (ACFP) [Ca8(PO4)5F x H2O]. The amorphous phases stabilised by the phosphopeptides are an excellent delivery vehicle to co-localise Ca, F, and phosphate at the tooth surface in a slow-release amorphous form producing superior anticaries efficacy. These amorphous phases stabilised by the phosphopeptides also have utility as dietary supplements to increase calcium bioavailability and to help prevent diseases associated with calcium deficiencies.

A dental composition which, e.g., eliminates or substantially reduces the discomfort and pain associated with dentinal hypersensitivity and exhibits enhanced anticaries and remineralization benefits, which composition contains a first component containing a calcium source, a second component containing an anion source and at least one of the components containing a basic amino acid in free or salt form, and the first and second components being maintained separate from each other until dispensed and combined for application to teeth.

An oral spray for preventing and treating the decayed tooth is prepared from vitelline antibody IgY, alcohol, wetting agent, surfactant, essence, antiseptic, pigment and deionized water through extracting IgY by water diluting method, PEG deposition method, membrane filtering method, or ammonium sulfate depositing method, and preparing oral spray.

The invention provides compositions comprising one or more isolated LDH-deficient mutans streptococcus strains and one or more isolated S. oralis strains and / or one or more isolated S. uberis strains. Compositions of the invention are useful to maintain oral health, by for example treating and / or preventing one or more symptoms of dental caries, periodontitis and / or other oral cavity diseases or wounds.

The invention discloses an antibacterial and whitening mouth care composition which comprises probiotics, a green tea extract and phytic acid in a mass ratio of 10:(10-20):(1-10), wherein the probiotics are one or a mixture of two of lactobacillus paracasei and lactobacillus salivarius; the probiotics are subjected to sterilization treatment. In the composition disclosed by the invention, the probiotics and the green tea extract are both active agents, the phytic acid is a stabilizer, and in the presence of the phytic acid, the compounding effect of the probiotics and tea polyphenol can be greatly improved; when being applied to a mouth wash product, the composition disclosed by the invention has very good effects of preventing bacteria, inhibiting dental plaque, whitening teeth, preventing decayed teeth, cleaning mouths and keeping gingival healthy.

The invention discloses a method for preparing a dental prosthetic material. The method comprises the following steps: 1) an enamel is soaked with a phosphoric acid solution or a blend solution of hydrogen peroxide and phosphoric acid for treatment; and 2) the enamel in the step 1) is laid in an HEDTA-Ca-P solution, and a fluorine ion solution is added into the HEDTA-Ca-P solution so that the enamel covered with the prosthetic material is obtained after the reaction. The method for preparing the dental prosthetic material is characterized in that the conditions are mild, the process is simple, the raw materials are cheap, the method has the clinical application value, the prior dental prosthetic material prepared is hopefully replaced by the dental prosthetic material prepared to repair dental caries or enamel damage caused by other dental diseases, and the dental prosthetic material can be also as taken as a pit and fissure sealant material used for preventing dental caries.

The invention discloses a whitening toothpaste, which is prepared from the following raw materials: 0.1%-3.75% of an active additive, 70.9%-78.12% of a humectant, 17%-20% of an abrasive, 1.8%-2.5% of a surfactant, 0.65%-1% of a thickener, 0.18%-0.35% of a sweetener, 0.1%-0.5% of a preservative, 0.1%-0.5% of pigment and 1.05%-1.2% of an oral freshener. Compared with the prior art, the whitening toothpaste disclosed by the invention can be used for effectively enhancing the anti-allergic function of toothpaste, relieving swelling and pain, preventing decayed teeth, cleaning the oral cavity, reducing the harm to a human body caused by single use for strontium salt and potassium salt, and improving the taste of toothpaste; pearl layer powder is added, so that the toothpaste has an effect of whitening teeth; and moreover, via keratin and capsid proteins, smoke stains, tea stains, coffee stains and medicine deposits on the surfaces of teeth can be effectively eliminated, so that the toothpaste has both a strong cleaning capacity and an effect of protecting the enamel.

The invention discloses a vibriosp S6-2(Vibriosp S6-2) CGMCCN0.4011. The growth temperaute of the strain ranges from 4 to 37 DEG C, 25 DEG C is the most preferable; the growth pH ranges from 6 to 11, 7.0 is the most preferable; and the concentration of NaCl for growth is 0.5% to 10%, 4% is the most preferable. The invention further discloses a method for producing ocean low-temperature dextranase by vibriosp and a low-temperature dextranase product produced according to the method. The low-temperature dextranase plays an important role in the aspects of prevention and treatment of dental caries, sugar industry, production of pharmaceutical dextran and the like.

The invention provides a mouthwash. The mouthwash contains gynura divaricata juice, mint oil, clove oil, stevioside, ethanol and water. The mouthwash has good effects of diminishing inflammation and relieving pain, and can be used for preventing or treating oral ulcer, decayed teeth and halitosis.

The invention relates to a preparation method of lycium barbarum oligosaccharide. The preparation method comprises the following steps: selecting materials; drying; crushing; degreasing; extracting; decolorizing; separating by a membrane; drying. According to the preparation method, the ethanol reflux extract process is carried out to prepare lycium barbarum oligosaccharide, and the obtained oligosaccharide is decolorized by macroreticular resin, thus the pigment can be effectively removed, and the purity of oligosaccharide can be improved. The prepared oligosaccharide has the physicochemical characteristics of low heat, stability, safety and non-toxicity and the like, also has the physiological functions of enhancing intestinal probiotics and preventing decayed tooth and the like, and can be widely applied to the field of health foods and medicines.

Peptide analogues of S. mutans CSP peptide which inhibit biofilm formation, uses thereof in the preparation of pharmaceutical compositions, antimicrobial compositions and uses thereof in the treatment and prevention of infections caused by biofilm forming bacteria, dental plaque formation, and conditions caused by dental plaque associated bacteria are provided.