Abstract: The present invention provides compositions including saturated calcium phosphate (sCaP) solutions, that may be prepared from mixtures of calcium deficient apatite and one or more of sodium fluoride and zinc chloride, or F or Zn ions. The solutions may be prepared from mixtures of calcium compounds and one or more of sodium or potassium phosphates, sodium or potassium fluoride and zinc salts with, for instance, either phosphoric or hydrochloric acids. Such compositions may be useful for increasing occlusion of dentin tubules, decreasing bacterial attachment to dentin tubules, decreasing bacterial growth or colonization on tooth surfaces such as enamel and dentin surfaces including on dentin tubules, increasing resistance to acid dissolution, inhibiting dental caries formation and progression and tooth decay and inhibiting development of tooth hypersensitivity.

Abstract: An oral stain remover which can remove a stain or a dental plaque effectively without a need of brushing the surface of teeth with a toothbrush or the like, and an oral composition containing the stain remover. An oral stain remover contains a salt of ultraphosphoric acid, and an oral composition contains the oral stain remover.

Abstract: Stable tooth bleaching gels with a high concentration of peroxide are disclosed. The present invention also provides a method for treating one or more teeth. The method includes steps of applying a therapeutically effective amount of a tooth bleaching gel with a high concentration of peroxide to one or more teeth, leaving the gel in contact with the one or more teeth such that the gel may whiten the tooth or teeth.

Abstract: An oral ultrasound waveguide device is disclosed for use as an oral cleaning device. One embodiment includes a power source and an ultrasonic oscillator configured to be positioned outside an oral cavity, and a waveguide configured to couple ultrasonic energy from the ultrasonic oscillator to a mouth portion configured to be received in an oral cavity. The mouth portion can be configured to couple the ultrasonic energy outward from the mouth portion via at least one matching layer.

Abstract: The disclosure relates to a method for treating or preventing periodontal disease, such as gingivitis or periodontitis. The method may comprise providing an antimicrobial composition disposed within a reservoir, the reservoir being fluidly connected to an exterior surface of an applicator having a frictional stress value sufficient to cause mechanical displacement of a biofilm present on an oral cavity surface; dispensing said antimicrobial composition through said applicator onto said exterior surface of said applicator; applying the antimicrobial composition to the oral cavity surface; and rubbing said applicator onto said oral cavity surface and exerting pressure towards said oral cavity surface.

Abstract: Systems and methods for treating gingival tissue or oral biofilm includes applying to the gingival tissue (sulcus or periodontal pocket) a biofilm penetrating antimicrobial agent; removing the imbedded anaerobic bacteria from the gingival tissue following at least one applying of the antimicrobial agent to the gingival tissue; administering colloidal hydrogen peroxide gel to the gingival tissue following the removing of imbedded anaerobic bacteria; and cleaning the gingival tissue with a cleaning agent directly following the administering of the colloidal hydrogen peroxide gel for modifying the environment from anaerobic (diseased) to aerobic (healthy).

Abstract: An oral care agent delivery device is provided which comprises a permanently deformable backing layer, an anchor layer overtop the backing layer, and an oral care layer overtop the anchor layer. The device is sized to fit over a plurality of teeth in an upper or lower dental arch of a subject. The oral care layer comprises at least one oral care agent and at least one hydrophilic polymer. The oral care layer is in contact with the anchor layer and forms an adhesive bond with the anchor layer; however, the oral care layer is minimally invested in the anchoring layer. When hydrated, the oral care layer has an adhesiveness relative to the surface of a user's teeth that is sufficient to retain the device on the user's teeth when placed thereon. The device can also have an oral care agent which is activated on hydration of the oral care layer, or an oral care layer which releases the oral care agent over time.

Abstract: Various embodiments for cleaning carious regions of a tooth are disclosed herein. For example, a dental apparatus can include a fluid platform having a chamber sized and shaped to retain fluid. The chamber can be configured to be coupled to the tooth over the carious region. A pressure wave generator having a distal end may be configured to be positioned in the chamber. The pressure wave generator may be configured to generate pressure waves in the retained fluid sufficient to clean the carious region.

Abstract: Disclosed are systems, methods, compositions and kits for mineralizing tissue, particularly dental tissue. The methods, compositions and kits may be used to strengthen and prevent weakening of the tissue. For example, the methods, compositions and kits may be used for treating and filling cavities in teeth caused by tooth decay.

Abstract: A toothbrush having multiple bundles of bristles preferably arranged in two rows spaced apart from one another, and each bundle independently anchored into the front surface of the brush head with bundles in the opposed rows directed inwardly toward one another and angled toward a common intersection, allowing the free tip ends of the bristles to terminate in a single, common row. Each bundle is free standing and the bundles in one row have alternating relation with the bundles in the other row or rows. Thus, the free tip ends of the bristles in each bundle terminate independently and unopposed, allowing the bristles in each bundle to have movement independent from those in adjacent bundles, apply less force against teeth, and provide less abrasion of the rounded outward tooth surfaces at or near the gingival level during the cleaning of interproximal areas of teeth.

Abstract: An oral care agent delivery device is provided which comprises a permanently deformable backing layer, an oral care layer, and a non-woven binding material with a first part that is substantially invested in the oral care layer and a second part that is substantially invested in the backing layer. The device is sized to fit over a plurality of teeth in an upper or lower dental arch of a subject. The oral care layer comprises at least one oral care agent and at least one hydrophilic polymer. When hydrated, the oral care layer has an adhesiveness relative to the surface of a user's teeth that is sufficient to retain the device on the user's teeth when placed thereon. The device can also have an oral care agent which is activated on hydration of the oral care layer, or an oral care layer which releases the oral care agent over time.

Abstract: A device for cleaning teeth, allows the simultaneous cleaning of the teeth of at least one arch. The device includes: a single or a double arc-shaped tray which can enclose the teeth of one arch or both arches at once and which, via the free edge(s) thereof, can be fitted to the corresponding gum or gums, the tray made from a flexible material allows reversible deformation and is compatible with medical use; and fluid-injection/-removal elements for injecting fluid into the tray and removing fluid from the interior thereof. Once the tray is in place on the teeth, the fluid-injection/-removal elements subject them to repeated cycles of fluid injection/removal to clean the teeth by the combined action, within the tray, of fluid circulation over and between the teeth and mechanical action of the tray's internal surface on the teeth, resulting from the deformation of the tray during the injection/removal cycles.

Abstract: Composition and methods include a dental bleaching agent, potassium nitrate a fluoride salt for enhanced whitening and reduced tooth sensitivity. The potassium nitrate and fluoride salt both reduce or eliminate tooth sensitivity that may otherwise be caused by the bleaching agent. For prolonged treatment of teeth, lower quantities of potassium nitrate (e.g., 0.5%) have actually been found to work better than larger quantities (e.g., 3%). The dental compositions may be applied directly to the person's teeth, or they may be loaded into a comfortable fitting, flexible, thin-walled dental tray and placed over the person's teeth. In that case, the dental compositions will include a tackifying agent, such as carboxypolymethylene, which assists the composition in retaining the dental tray over the person's teeth as a result of the adhesive properties of the dental composition rather than due to mechanical interlocking of the tray over the person's teeth.

Abstract: A dental appliance comprising at least two plies of thermoformable material, wherein a first ply of a first material, having a first set of characteristics properties, provides a first primary surface of the dental appliance and wherein a second ply of a material different from the first ply, having a second set of characteristic properties, provides an opposing second primary surface of the dental appliance.

Abstract: Methods and systems for treating and controlling oral periopathogens that have been found to be associated with systemic inflammation and/or disease in a periodontal pocket, inhibiting their entry into the host circulatory system, and decreasing the systemic effects. A bacterial community present in one or more oral treatment regions is determined. A periodontal medicament delivery tray is prepared for the patient with the delivery tray being configured with one or more application regions, each configured for applying a medicament to a different one of the oral treatment regions. The medicaments are applied to each oral treatment region, including placing each medicament into a different application region of the delivery tray. Each of the applied medicaments is applied as a function of a determined efficacy of the medicament against the bacterial community determined to be in the oral treatment region associated with the application region in which each medicament is applied.

Abstract: A tooth cleaning and whitening method applies a light transmitting oxidizing gel to the teeth, after which a hand-held LED light source with a light transmitting lens and a cup forming a chamber having an open end is moved over the teeth so that the cup distributes the gel while the teeth are exposed to light transmitted through the lens. This not only ensures intimate contact of the teeth with the gel, but also maintains a more or less constant spacing between the light source and the tooth surfaces for optimum results. A sealant is then applied to the gel-coated teeth, after which a dental prophylaxis is performed by cleaning and scaling the teeth at the gum line, gingival margins, and crevicular spaces while avoiding excessive disruption of the sealant composition. This simultaneous cleaning and whitening procedure reduces patient time at the dentist compared to separate cleaning and whitening procedures.

Abstract: A floss device is disclosed which is designed to be used to floss between adjacent teeth in a person's mouth. The floss device includes a first portion joined to a second portion. The first portion has an arcuate configuration which terminates in a rounded tip. The second portion is linear and terminates in an enlarged distal end which is designed to be grasped between a person's thumb and index finger and facilitates manipulation of said floss device. The floss device also has a textured outer surface that can temporarily retain a solution or liquid medication and then transfer the solution or liquid medication onto the teeth and surrounding soft tissue in a person's mouth. A method of molding the floss device and a method of using the floss device are also disclosed.

Abstract: An article and method for an oral care appliance which generates successive bursts of liquid adapted to provide cleansing of the teeth. The appliance includes a housing and a system for providing successive bursts of liquid, comprising a source of liquid, a nozzle with a spray exit opening and a system for generating and delivering successive bursts of liquid through the spray exit opening. The appliance includes a controller which includes a learning mode initiated by the user. The appliance is operated by the user in a desired sequence when the controller is in the learning mode. The learned desired sequence is stored in memory of the controller, so that future operation of the appliance proceeds with the sequence of operation established by the user.

Abstract: An intraoral biofilm control apparatus including a suction unit, a suction chamber positioned within and in communication with an inner space of the suction unit, a tubular connection member operably connected to and extending into the suction chamber, and an angular head member adjustably connected to an upper end of the tubular connection member is provided. The suction chamber, in communication with the suction unit, creates a negative air pressure in an inner space of the suction chamber. The angular head member in fluid communication with the suction chamber via the tubular connection member, contacts and suctions the intraoral biofilm from the intraoral areas into the inner space of the suction chamber when the negative air pressure is created. The angular head member having an angularly curved suction tip configurably accesses the intraoral areas. The angular head member having a suction plate suctions the intraoral biofilm from intraoral tongue areas.

Abstract: The invention provides an oral care system comprising a gel in a pen dispenser, the dispenser comprising a chamber which permits dispensing of a measured amount of the gel, wherein the gel exhibits a Herschel-Bulkley yield stress of 10 to 230 dynes/cm2, a Herschel-Bulkley viscosity of 3 to 500 poise, and a Herschel-Bulkley rate index of 0.4 to 0.6, the specific viscosity permitting efficient application of the gel, as well as methods of using the same.

Abstract: A hand-held, ergonomic instrument with an LED that emits actinic light in visible wavelengths mounts a replaceable applicator cup with a reservoir for a tooth whitening composition held in place against a user's tooth during a whitening procedure. Actinic light is directed onto the tooth surface through a window in the cup and the tooth whitening composition substantially without attenuation, delivering at least about 100 milliwatts per square centimeter of light energy to the tooth surface. The cup includes a rigid body for mounting the cup to the instrument and an opaque flexible sleeve molded in place over the outside of the body to form a seal with the tooth surface and prevent exposure of soft mouth surfaces to the actinic radiation during a whitening procedure. A safety switch disables the LED when the applicator cup is not in contact with a tooth surface.

Abstract: An apparatus is disclosed for providing dental care using pressurized fluid. The pressure is obtained from the effervescence effect of the reaction of two active materials in the presence of the fluid. The pressurized fluid is provided to the mouth in a constant pressure and the apparatus is handy and may be operated in any angle with respect to the direction of earth gravity force. In some operational modes the pressurized fluid is provided in pulsating manner or in vibrating manner or in both manners.

Abstract: A dental bleaching composition comprises a dental bleaching agent and a polyvinylpyrrolidone thickening agent. The bleaching composition may include water, flavoring agents, a basic substance and desensitizing agents, as desired. Polyvinylpyrrolidone avoids acid etching and chelation of teeth that were problematic in bleaches using carbomer as a thickener. A delivery system for delivering the bleaching composition comprises the aforementioned dental bleaching composition in combination with a moisture-resistant barrier layer such as a dental tray or a flexible strip of material.

Abstract: The present invention is directed to a debridement and/or implant cleaning tool (1) in which the means for cleaning (4) is made of a biodegradable material. Thus, if parts of the means for cleaning (4) come loose during use, these will be degraded by natural processes in the body and will not remain in the body and cause negative body reactions.

Abstract: The invention provides an orally acceptable plaque indicator gel comprising a dye in sufficient concentration to visibly stain plaque upon application, optionally for use in combination with an orally acceptable plaque removal gel comprising an antiplaque agent in sufficient concentration to remove plaque and or kill bacteria upon application, in each case the gel having a specific viscosity permitting efficient application using a pen dispenser, as well as reduced dye or antiplaque agent concentration, together with methods of using the same.

Abstract: The control mechanism (18) for a pressurized-gas oral cleaning appliance (10) includes a hollow valve member (44) for receiving gas from a pressurized source thereof (14) and for delivering gas to a gas exit assembly. A gas releasing assembly includes a user-activated actuation member (26) and a pusher member (36), wherein movement of the actuation member moves the pusher member and the valve member in a forward direction to a first position where gas enters the hollow interior of the valve. Further forward movement of the actuation member results in the valve member aligning with the pusher member in such a relationship that the valve member moves rearwardly by action of a spring (67) to a second position where the gas in the valve member exits through the openings and the groove to a gas exit line (68).

Abstract: The present invention provides a device 10 for generating a non-thermal gaseous plasma which may be a flow of gas plasma in the form of a gas plasma plume emitted from the device. The device comprises a gas capsule, or pressure vessel, 12 for holding a gas or gases 14 under pressure and forming a flow of gas through a plasma generator 16 to an applicator 18 when released from the capsule. Gas released from the gas capsule is energised in the reaction generator to form a gas plasma. The device has a housing 28 for the plasma generator 16, a battery 116 and a signal generator 58 for energising the plasma generator. The gas capsule 12 docks with the housing 28. The device is adapted to be hand-held, typically by the gas capsule 12, and operated to allow it to be used for instance for cleaning and whitening teeth.

Abstract: An oral care system and method for the treatment of certain oral pathological conditions that require the cleaning and cleansing of the underlying scaffolding of the tooth. The oral care system and method generally includes applying chlorine dioxide liquid or gel to a diseased portion of the tooth and activating it so as to clean the aforementioned. A tool is utilized to activate the chlorine dioxide liquid thereby releasing its cleaning action. Another process utilizes repetitive steps of water and chlorine dioxide activated with a tool to cleanse the inner regions of an affected tooth.

Abstract: The present invention relates to calcium carbonate particles, a powder mixture comprising said particles and a tooth cleaning method wherein the particles or powder mixture are used.

Abstract: A tooth whitening system comprising a dental tray having a surface operable to confront a tooth surface, and a tooth whitening composition comprising a whitening agent and a hydrophobic polymer carrier. The tooth whitening composition is preferably substantially non-water soluble. A tooth whitening kit is also provided using a dental tray and the tooth whitening composition comprising a whitening composition and a hydrophobic polymer carrier.

Abstract: A method and accompanying apparatus that allows high concentrations of hydrogen peroxide for tooth whitening by use of an aerosol spray. The aerosol spray may be delivered through a mouthpiece that will direct the spray onto the teeth while inhibiting any escape of the spray to the lips and outside the moth. Also, in combination with antiplaque formulations, enhanced tooth whitening is effected.

Abstract: A dental fluoride foam composition comprising an aqueous solution of a water soluble fluoride ion releasable salt, a surfactant selected from the group consisting of nonionic surfactants, zwitterionic surfactants, betaine surfactants and mixtures thereof; and an orally compatible acidifying agent in an amount sufficient to adjust the pH of the composition to about 3 to about 5. The composition is stable at low temperatures and is a clear solution substantially free of precipitates when held at 4.4° C. for 12 hours. When dispensed from a container into the trough of a dental tray, the composition forms a low density, rapidly collapsible foam which substantially liquefies in about 1 minute after being dispensed from the foam generating container and placed in contact with a patient's teeth.

Abstract: The specification discloses embodiments and other information concerning methods, systems, and apparatus in accordance with aspects of the subject invention for treating diseased root canals in teeth and other dental condition, such as periodontitis and the like wherein a laser light is pulsed from a laser fiber optic tip into liquid contained in a reservoir or other space within the canal, periodontal sulcus/pocket, or other dental space immersing the area in need of treatment so as to disintegrate, separate, or otherwise neutralize pulp, plaque, calculus, bacteria, and other microbes, thus annihilating and particleizing undesirable material within the liquid in the reservoir by the action of relatively intense, photoacoustic micro-pressure waves propagating throughout the liquid as a result of the laser light pulses emitted into the liquid from the tip, thereby enabling easy removal of the particles by finely dispersing the same in the liquid and then flushing the particle-laden liquid from the area by hydr

Abstract: This invention pertains to dental care compositions with antimicrobial benefits. In particular, the invention provides for compositions of oral tissue-adherent salts that release biocidal ions on a controlled release basis and thereby provide and maintain an essentially uniform concentration of biocidal ions above the MBC or MIC of the target bacteria at the site of application in the mouth for an extended period of time. The compositions are useful for treating or preventing oral diseases resulting from bacteria, fungal or yeast infections, such as caries, gingivitis, periodontal disease and candidiasis.

Abstract: A medical or dental treatment device for use in an oral or dental procedure, comprises a base part with a power supply unit and an electrical or electronic control device and a set of different parts for use with the base part. The set of different parts comprises at least one delivery part for a first treatment phase and comprising a sound or ultrasound source, a movable piston and a piston operating element operable to deliver a substance from the delivery part to a treatment site, and at least one active part for use in a second treatment phase to act on the treatment site. The active part comprises a sound source, an ultrasound source and/or an electromagnetic radiation source. The delivery part and the active part are selectively connectible to the base part for use in consecutive treatment phases (the first can precede or follow the second).

Abstract: Systems and methods are provided for performing a disinfecting treatment. A fluid is placed within a volume, where the fluid absorbs radiation of a first wavelength, and where the fluid is transparent to radiation of a second wavelength. Radiation of the first wavelength is applied near or inside the volume to generate shockwaves or pressure waves in the fluid. Radiation of the second wavelength is applied near or inside the volume to cause thermal disinfection.

Abstract: A dental clinical apparatus having a function which conventional instruments for dental treatment have not had and having a novel constitution. The dental clinical apparatus includes a syringe which has a fluid jetting system for dental treatment and a plasma jet applying means for producing a plasma jet from the end by allowing a low-frequency high-voltage power supply to apply a low-frequency high voltage between electrodes on the outer peripheral surface of a rare gas tube through which a rare gas having a low dielectric breakdown voltage under the atmospheric pressure is flowed, and thereby causing electrical discharge.

Abstract: The invention describes the modification of polyamine-based materials to form polyguanidine compounds that are useful for their antimicrobial, anticaries, and muccoadhesive properties. The present invention also relates to methods for preventing or treating periodontal disease and caries which include delivering a therapeutically effective amount of an oral composition containing a polyguanidine compound into an oral cavity.

Abstract: Tooth whitening system includes a moldable dental tray of sufficiently moldable material so that a user can form the tray to substantially match the configuration of the user's teeth, in use. Moldable dental tray includes a raised region and a valley that are adjacent to and free of contact with a corresponding raised region and valley of a user's tooth adjacent a user's gum line. Thus, a tooth provided on the moldable dental tray is free of contact with the user's gingiva, in use. Tooth whitener includes a carrier, a whitening agent, and a sufficiently adhesive so that both the tooth whitener and the moldable dental tray are adhered to a user's tooth for a sufficiently long period of time to achieve a whitening of the user's tooth by the whitening agent. Tooth whitener and tray can be made of organic, natural materials.

Abstract: The invention encompasses non-aqueous dentifrice compositions containing a bioacceptable and bioactive glass with improved mouth-feel, foam, and product stability. More particularly, the invention encompasses non-aqueous compositions including combinations including carrageenan and/or carboxymethylcellulose gums, glycerin, ethylene oxide/propylene oxide copolymers, and a bioactive glass and methods of use the compositions in an oral care product, for example, a whitening tooth-paste, for hypersensitive teeth.

Abstract: A method of treating gum disease using a soft tissue diode laser which generates a beam of light having a wavelength in the visible portion of the electromagnetic spectrum (400 nm-700 nm) at a laser power of 0.5 to 1.2 watts, used with intermittent stops to control tissue temperature, to decontaminate the gum tissue and biostimulate the periodontium nonsurgically when used with a substrate, thus preventing the long junctional epithelium from migrating into the sulcus, preserving tissue height, and regenerating periodontium, the method comprising: placing the tip of the laser inside the sulcus; penetrating the entire sulcus by moving the laser light with intermittent stops to control tissue temperature vertically and horizontally throughout the sulcus; and placing a substrate in the sulcus prior to a blood clot forming, thus regenerating periodontium in the sulcus.

Abstract: A natural anhydrous oral care composition with a limited number of naturally-derived, naturally processed, generally regarded as safe (GRAS) ingredients including an effective amount of a bioactive glass is described. The topical application of the composition to human teeth cleanses, remineralizes and reduces plaque build-up on teeth.

Abstract: A tooth cleaning and whitening method applies a light transmitting oxidizing gel to the teeth, after which a hand-held LED light source with a light transmitting lens and a cup forming a chamber having an open end is moved over the teeth so that the cup distributes the gel while the teeth are exposed to light transmitted through the lens. This not only ensures intimate contact of the teeth with the gel, but also maintains a more or less constant spacing between the light source and the tooth surfaces for optimum results. A sealant is then applied to the gel-coated teeth, after which a dental prophylaxis is performed by cleaning and scaling the teeth at the gum line, gingival margins, and crevicular spaces while avoiding excessive disruption of the sealant composition. This simultaneous cleaning and whitening procedure reduces patient time at the dentist compared to separate cleaning and whitening procedures.

Abstract: A tooth whitening composition with a high level of whitening effectiveness over the entire tooth whitening composition application includes colloidal platinum as a platinum catalyst in a peroxide-containing oral composition. Whitening effectiveness can be enhanced by application of a tooth whitening composition containing colloidal platinum to the teeth surface followed by photo-irradiation of the application site.

Abstract: Devices and methods for cleaning an oral cavity by positioning a device suitable for detecting and removing plaque from the surface within the oral cavity having applied thereto a fluorescent agent capable of binding to plaque on the surface. The surface is substantially simultaneously cleaned and irradiated with a light of a wavelength effective to provide a fluorescent emission when contacted with said fluorescent agent. A portion of the fluorescent emission is collected (APV1), and compared to a predetermined threshold value (PPTV). If APV1 is less than PPTV, the device is moved to another section. If APV1 is greater than or equal to PPTV, then another portion of fluorescent emission is collected (APV2). The percent reduction from APV1 to APV2 determines when the device is moved to another section.

Abstract: A method of cleaning teeth by providing a device for generating a chemical agent in situ on an as-needed basis via the application of an electrical potential across a pair of conductors in communication with an electrolyte. The chemical agents may include ozone, hydrogen peroxide, peroxide, chlorine and/or hypochlorite. The device may include a voltage source and a first set of electrodes for applying an electrical potential to the electrolyte. The device may also include a second set of electrodes disposed about an anode of the first set of electrodes. The first and second sets of anodes cooperate to produce ions, peroxides, ozone and/or other chemical agents via the application of electrical potential to the electrolyte.

Abstract: A process of whitening a tooth provided by the invention includes the steps of providing a delivery device for mechanical dispensing of a predetermined amount of a whitening composition to an applicator tip; dispensing the amount of whitening composition to the applicator tip; applying the amount of whitening composition disposed on the applicator tip to the tooth to be whitened; and allowing the whitening composition to remain in contact with the tooth for a period of time sufficient to whiten the tooth. Optionally, the process further includes the step of exposing the whitening composition to light. A gum or candy for tooth bleaching is detailed along with methods of use. A device adapted to dispense an amount of a dental whitening composition optionally includes a light source for activating the whitener.

Abstract: Methods, systems, and products monitor a person's regimen for medicinal and dietary restrictions. When the person's regimen requires a liquid medication or supplement, an oral instrument is commanded to dispense a dosage of fluid. The oral instrument stores a reservoir of the fluid. If the oral instrument is a spoon, for example, the spoon may automatically dispense cough syrup or other medicine. A toothbrush, likewise, may automatically dispense mouthwash. A sensor may confirm presence of the oral instrument in the person's mouth, thus ensuring the dosage of fluid is ingested.

Abstract: The dental position tracking system includes a toothbrush (30) which has a system (20) for determining the orientation of the toothbrush in the mouth of a user relative to the earth, based on measured stored information. Information is stored in the toothbrush concerning target ranges of expected measured toothbrush orientations for each of a plurality of dental zones (22). A processor (24) compares the measured toothbrush orientation information with the target orientation ranges, following conversion of both the target orientation information and the measured toothbrush orientation information to the same coordinate system. The processor then determines which if any of the target ranges matches, within a selected tolerance thereof, with the toothbrush orientation information. Any difference between the target range and the measured toothbrush orientation information is then used to partially adjust the target information range, in order to compensate for a change of position of the user's head.

Abstract: A device for directing a liquid onto a plurality of surfaces of the oral cavity, the device including a chamber for maintaining the liquid proximate the surfaces, where the chamber is defined by front, rear and base inner walls of the device and the front and rear inner walls each include a plurality of openings, the devices further including a first manifold and a second manifold, a first port and a second port; and means for providing an effective seal of the device within the oral cavity.