62 results about "Dental cavity" patented technology

A light emitting electric toothbrush and method therefore is disclosed which is intended for use by children, is comprised of a robust high-strength, plastic construction, and employs both light and vibration to assist in the development of suitable dental hygiene skills. In its most fundamental embodiment, the light emitting electric toothbrush comprises a construction including a handle having a bottom end and a top end and a toothbrush shaft mounted to the top end of the handle. The brush shaft is comprised of a plastic resin including a fluorescent colored light refractive additive for optimizing light transmission through the brush shaft. A high intensity light source is mounted within the top end of the handle for generating light and a domed-shaped optical lens is positioned over the high intensity light source for directing the generated light into the brush shaft. Finally, a switched electrical source is included for energizing the light source and the generated light therefrom creates a glowing illumination in the brush shaft for illuminating a dental cavity of a person during brushing of the teeth. In a preferred embodiment, the toothbrush also includes a vibrating motor mounted within the handle for causing the brush shaft to vibrate. The vibrating motor is also energized by the switched electrical source simultaneously with the light source.

A device for disinfecting and/or sterilization of a dental cavity comprising:

• • an electrode pair adapted to extend into said cavity to provide current along at least a portion of the cavity; and
  • a controller configured for sending controlled electrical energy to said cavity via current flowing between the electrodes when located in said cavity, thereby to provide electrical energy for said disinfection and/or sterilization.

A method and apparatus for oral hygiene care, for the removal of plaque and calculus build-up, and for the prevention of plaque and calculus formation on teeth is to reduce or eliminate susceptibility of dental and gum related disease. This method combines the oral irrigation, electrical power toothbrush and vacuum fluid, which can have synergistic effect on removal of plaque and food debris, and prevention of gum disease and tooth decay more efficiently.

Present embodiments include composite dental materials for use in fillings and crowns, and methods of making the same. The composite materials can include biocompatible dental resin matrices and filler materials. The filler materials can include various types of magnetic nanoparticles. Additional embodiments include method of forming composite dental materials using a magnetic field and methods for forming aluminum oxide (Al₂O₃) nanoparticles. Other embodiments according to present teachings include methods for filling dental cavities and forming dental crowns.

The present invention provides an oral cavity composition with which brief treatment using the same yields a high effect for dental cavity prevention and an excellent dental hyperesthesia preventive and treatment effects, and a method of treatment using such a composition. The oral cavity composition according to the present invention contains a first composition (A) containing a fluoride ion-supplying compound, an inorganic phosphoric acid and a salt thereof, and a second composition (B) containing a calcium salt of organic acid, with an organic acid constituting said calcium salt of organic acid having a pKa value ranging from 3 to 11, or at least one pKa value ranging from 3 to 11 when said organic acid has plural pKa values, wherein said first composition (A) and said second composition (B) are discretely packed from each other so that said two compositions can be alternately used and then come to be mixed with each other at a tooth region when applied thereto.

A self-contained and convertible dental instrument system includes both a lighted mirror and a direct illuminator. A hand piece has a handle section, including a battery in a housing, and a dual attachment section to receive a mirror and a light source. The illumination can be by reflection by said mirror or directly upon removal of the mirror from alignment with the light source. The handle and attachment sections preferably form a Y with the handle section reduced in size for balance and enhanced manipulation. The light source is an LED, is connected through wires in the hand piece to the battery and is controlled by a switch on the battery housing. A lens for the LED is attached by a snap-on adapter. For close contact illumination in the dental cavity, the lens includes a translucent rod, also attached by an adapter. The mirror and rod are rotatable for angular positioning to improve the illumination and the viewing.

A two-part needle for a dental syringe in which the first part of the needle is attached to the syringe and has a larger cross0section than the other part, which is malleable, can be increased while the first part has a chamber for housing a cartridge with thermoplastic material therein that is caused to flow through the needle and into the dental cavity.

Disclosed is a dental impression tray realized such that the width of the dental impression tray can be adjusted to match different sizes of patient's dental arches and the adjusted width of the dental impression tray can be stably maintained during the procedure of obtaining an impression of teeth of a patient. The dental impression tray includes first and second container parts to contain an impression material therein, the container parts being shaped to correspond to a patient's dental arch and being separated from each other; a pivot part to pivot the first and second container parts together such that the container parts can be rotated around the pivot part, thus adjusting the width between the container parts; and a handle part extending from the container parts and being gripped and handled by an operator while adjusting the width between the container parts, and being provided with a locking means for stably locking the first and second container parts in positions corresponding to an adjusted width. Thus, the present invention can adjust the width of the dental impression tray to match sizes of patient's dental arches which are different from each other by the dental cavity and teeth of a patient, so that the tray can be adapted to all of the patients. Furthermore, the adjusted width of the tray can be stably maintained during the procedure of obtaining an impression of teeth of a patient, so that a correct dental impression can be quickly obtained.

Provided is an apparatus and method for the detection of dental caries. The apparatus generates longitudinal ultrasound waves that may be applied to any accessible surface of a tooth. The reflected ultrasound pulse echoes are collected and correlated with the incident pulse. The ultrasound pulse echoes from the front and rear surface of a dental cavity may be distinguished from other echoes, and provided in visual display to inform as to the size and location of the cavity.

The present invention relates to methods and compositions for inhibiting, treating, and preventing dental diseases in human and non-human animals, particularly domesticated companion animals. More particularly, the present invention relates to the unexpected discovery that the combination of micron-sized particulate bioactive glass and a topical bisphosphonate yields a composition that is capable of treating and/or preventing dental problems such as periodontal disease, tooth decay and tooth resorption in animals, particularly small mammals such as cats.

A composite material is provided which, while having an unusually high filler content may be extruded from a dental syringe and remains easily adaptable in the dental cavity. When materials of the present invention are cured, dental restorations are provided which have unusually high surface hardness and yield strength, as well as a low volume shrinkage on curing. This is achieved by use of a mixture of filler particles with a specific size, size range, and size relationship. Such a combination of properties makes the material of the present invention particularly useful for restoring cavities in posterior teeth.

The invention discloses a dental print mold palte realizing width of the dental print mold matching with dental arch of sufferer with different size, and keeping regulated width of the dental print mold steadily during obtain the dental print mold plate of the sufferer. The the dental print mold includes: a first and second holding part for holding print mold material, the first and second holding part are formed corresponding to dental arch of sufferer and separatedly each other; a pivotal part for pivoting reserve part of the first and second holding part and rotating with thereof to reguale width between the first and second holding part; and a handle part extending from the holding part and grasped by the manipulater when regulating width between the first and second holding part, and a locking device for locking the first and second holding part steadily on corresponding to position of regulated width. Thereby, the invention can regulate the width of the print mold to match with dental arch size of sufferer, dental arch size of sufferer for dental cavity and teeth of sufferer is different, so the mold can suit for all sufferers. Moreover, the regulted width of the mold can be kept steadily during obtaining dental mold of sufferers, so can obtain right dental print mold quickly.

The invention provides a portable tooth examination device and a control method thereof, and relates to a device for examining dental plaque by utilizing fluorescence and a control method thereof. The portable tooth examination device comprises a fluoroscope which has deep-blue LED and colorful image collection functions and can extend into the dental cavity of a user, and a universal smart mobile phone with a touch display screen and WiFi communication function, wherein the fluoroscope does not use a mobile deep-blue filter or a drive unit thereof, but has a WiFi communication function, and can be used for transferring a collected image outward; after a specific control program is introduced into the mobile phone, the mobile phone is used for receiving dental image data which consists of red, green and blue channel images and is transmitted by the fluoroscope and deducing data of the blue channel image in the dental image data; a dental image of the red fluorescent image which is generated from dental plaque under deep-blue excitation is remarkably displayed on the touch display screen; and a user can spontaneously examine whether teeth have dental plaque or not. The device has high reliability, long service life and good economical performance.

The invention provides a dental material with nanometer fluoric high-fortified resin and making method in light cured resin dental material and powder dispersing method technological field, wherein the resin dental material comprises the following parts: methacrylate ester integral, initiating agent and mineral filler, and the mineral filler comprises CaO-SiO2-Al2O3-P2O5-F silicofluoride fluorosilicate biological ceramic powder. The making method relates to technologies of the biological ceramic powder and nanometer silicon powder through silanization treatment and the nanometer silicon powder being ultrasonically dispersed in organic medium. The invention has biological activity with antibacterial and anti-dental cavity, which gets ideal effects on properties of resisting radioactivity, degree of transparency, tensile strength, abrasion-resistance, density, rheological property and so on.

The present invention relates to a cement based on magnesium sodium phosphate with clinical applications in bone surgery and odontology. This cement has an intrinsic antimicrobial effect as its main property. It also has a fast setting time, along with a high short-term compressive strength. Another property inherent to these cements is their adhesive character.

Use of the cement is indicated for bone and dental applications, as well as filling bone defects or sealing dental cavities. The cement is especially indicated in cases in which an antimicrobial effect and/or adhesive properties are necessary.

The invention discloses composite resin with low contraction stress containing dimethacrylate with a long oxyalkyl chain for the dental department and a preparation method of the composite resin. Thecomposite resin comprises 20-50 weight parts of a mixture containing methacrylate resin matrix and a light initiating system, and 50-80 weight parts of an inorganic filler. In the mixture containing the methacrylate resin matrix and the light initiating system, the weight of the methacrylate resin matrix accounts for 96%-99.4% of that of the mixture, and the weight of the light initiating system accounts for 0.6%-4% of that of the mixture. The composite resin with low contraction stress containing dimethacrylate with the long oxyalkyl chain for the dental department has relatively low system contraction rate and contraction stress, and the phenomenon of repair failure caused by marginal microleakage, repairing body falling and the like due to polymerization contraction and contraction stress when the composite resin is used for repairing the dental cavity can be reduced.

The present invention discloses a synthetic polymer tooth replacement for replacing a missing tooth. The synthetic tooth replacement is a periodontic implant suitable for natural and reconstructed periodontic in the geometric/topographic construct similar to that of a natural tooth's dentin below the gumline. The synthetic polymer tooth replacement is made of a composition comprising a moldable resin and weighted particular additives. The replacement is formed by centrifuging the composition and pouring into a mold. The mold is customized to the recipients missing tooth, resulting in a replacement that has an exterior that is configured to bow out over a period of time, such that when the partially cured replacement is placed in a recipient's dental cavity, the replacement locks into the place while fully curing over a period of time. The advantages are the natural feel and noninvasive nature of the polymer dentin, which does not disturb the natural state of the dentin cavities. The synthetic polymer tooth replacement allows for replacement teeth without the need for bone grafting.

A malleable sustained release formulation is created utilizing a local anesthetic wherein the composition is made sustained release by incorporating it into a bovine or porcine hemostatic agent. The composition is malleable enough to fit into a cavity such as a dental cavity and form the shape of the cavity. In addition to providing sustained release of the anesthetic, the composition also provides quicker reduction in bleeding.

Methods and apparatuses (including systems and devices) for modifying a three-dimensional (3D) model of a subject's oral cavity to determine individual components such as teeth, gingiva, tongue, palate, etc. In some implementations one or more automated machine learning agents may modify one or more subsets of 3D models of the subject's oral cavity using height map data to identify, segment and/or modify to mesh regions of a 3D model constructed from a plurality of 2D images of the subject's dental cavity.

The disclosure provides biocompatible dental material that is moldable and biodegradable and provides sustained and/or controlled delivery of one or more local anesthetics within a dental cavity or space. Such dental material is customizable for the size and shape needed for a particular patient or particular application. The dental material may also provide customizable sustained and/or controlled delivery of one or more local anesthetics.