87 results about "Dental impression material" patented technology

An intra-oral dental irradiation device for use in dental procedures for whitening teeth, imaging teeth, and making impressions of tooth structures of a patient. The device features one or a plurality of LED devices mounted to an arched shaped structure which project light upon or through teeth. In the whitening mode the light of the proper spectrum to activate enamel whitening material is projected. In the imaging mode light projected by the LED devices is received by a charged coupled device which communicates the image of the light passing through the teeth from the LED devices, to a computer. In making dental impressions, the device projects light in a spectrum that provides the catalyst to material that hardens when exposed to that spectrum thereby hardening dental impression material when inserted over the teeth of a patient.

An intra-oral dental irradiation device for use in dental procedures for whitening teeth, imaging teeth, and making impressions of tooth structures of a patient. The device features one or a plurality of LED devices mounted to an arched shaped structure which project light upon or through teeth. In the whitening mode the light of the proper spectrum to activate enamel whitening material is projected. In the imaging mode light projected by the LED devices is received by a charged coupled device which communicates the image of the light passing through the teeth from the LED devices, to a computer. In making dental impressions, the device projects light in a spectrum that provides the catalyst to material that hardens when exposed to that spectrum thereby hardening dental impression material when inserted over the teeth of a patient.

A delivery system for supplying a single dose quantity of dental impression material. The system includes a dispenser having first and second chambers sized to contain first and second components of the single dose of dental impression material. The chambers are sealed by a closure that is movable from a sealed position to permit dispensing of the components through a mixing tip. The resulting dental impression material may be applied directly to a patient's dental anatomy and / or to a dental tray.

Apparatus, kits and methods for providing accelerated treatment of a patient's teeth. The apparatus, kits and methods involve the use of a dental impression tray that includes a patient dentition impression formed from a dental impression material such as an alginate. The impression tray advantageously includes heating means for heating and maintaining the formed patient dentition impression at a temperature greater than about 105° F. The heated dental trays may be used to accelerate the activity of dental bleaching agents (e.g., peroxides), desensitizing agents (e.g., potassium nitrate), remineralizing agents (e.g., fluoride salts), and the like. A dental office procedure for treating teeth involves the basic steps of: (1) coating a specially-prepared patient dentition impression with a dental composition such as a bleaching, desensitizing or remineralizing composition; (2) placing the coated patient dentition impression into the patient's mouth; (3) heating the patient dentition impression and dental composition to a temperature of at least about 105° F.; and (4) retaining the patient dentition impression in position for period of time in a range of about 1 minute to about 60 minutes. The procedure can be adapted to microwave heating, electrical resistance heating, or hot fluid heating of the patient dentition impression.

An impression coping is provided for taking an impression of an implant installed in a patient's mouth. The impression coping comprises an engagement portion, a cover and an impression portion. The engagement portion is adapted to be inserted within an internal cavity of the implant. The engagement portion has a plurality of axially extending protrusions positioned around the periphery for engaging corresponding channels within the internal cavity of the implant. The engagement shaft is thus configured to register the internal orientation of the implant within a patient's jaw. The impression portion of the coping includes one or more embedment features adapted to be embedded in a dental impression material for taking a dental impression thereof.

This invention relates to methods and compositions for single component photoinitiated dental impression materials. The impression material is workable in its pre-cured state, cures rapidly upon exposure to light, and exhibits desirable processing conditions such as short setting time, long working time, no void formation, good wettability, mechanical properties, and detail reproduction.

A method for positioning teeth is provided. The method includes receiving a dental impression kit at an address of the dental patient. The dental impression kit includes a first dental impression tray, a mixable dental impression material, and instructions for taking an impression of the patient's teeth. The method also includes the steps of mixing the mixable dental impression material to form a settable dental impression material, and then placing the settable dental impression material into the first dental impression tray. A dental impression of the patient is made at the address of the patient. The method then includes delivering the impression to a scanning company, and in return, receiving a first orthodontic aligner from the scanning company. A plurality of additional aligners may also be received for the purpose of moving the patient's teeth to a final desired position. Preferably, the processes take place without the intervention of a dental healthcare provider.

A dental impression tray includes a body having a channel for receiving a quantity of curable thermoset dental impression material and an electrically resistive heating element provided within the channel, in order to use heat to accelerate the curing of the dental impression material. In some embodiments, the tray includes a liner positioned on the heating element in the channel, where the liner has low thermal conductivity. A system for forming a dental impression includes a quantity of thermoset dental impression material, and the tray. A method for using the tray includes the step of turning on the heating element after the tray is positioned within a patient's mouth, to accelerate the curing of the dental impression material.

An anti-vibration mechanism for dental impression material mixer. The mechanism includes a plurality of supporting poles, a plurality of first elastic springs, a plurality of second elastic springs, a base plate and a restricting board. One end of both the first elastic spring and the second elastic spring are linked to the supporting pole, and the other end is linked to the top and the bottom of a motor respectively. The position of the motor is restricted at a central opening of the restricting board, and the motor is hanging above the base plate. Since the present invention is mainly dependent on the resilient elongation of the first elastic spring and the second elastic spring, which are linked on the top and the bottom of the motor respectively the present invention are absorb the vibration when the motor is operating and enhance the stability of the motor and every mechanism mounted on its top.

A dental impression material comprising a polyvinylsiloxane and a surfactant, wherein said surfactant imparts wettability to the composition, such that the material has a surface contact angle with water of less than about 50 degrees after about 3 minutes.

The invention relates to a dental impression material containing a theological modifier. The rheological modifier is in particular useful for adjusting shear-thinning properties of non-water based dental impression materials, especially of precision impression materials. It further relates to a method for producing a dental impression material.

An aerosol delivery system for dispensing a multi-component dental composition is provided. The system is particularly suitable for dispensing dental impression material containing mixed components A and B. The system includes a dispensing device having an inner container with pressurized aerosol chambers. The first chamber is used for storing and dispensing component A, and the second chamber is used for storing and dispensing component B. The dispensing device includes a piston assembly having a first piston member that slides within the first chamber and a second piston member that slides within the second chamber. The pistons force the components into a common manifold, and the combined material is fed into a dispensing tip containing a static mixer, wherein the material is mixed and then dispensed.

The invention features a composition which can or is to be used in a dental retraction, the composition comprising liquid a liquid and a layer type 1:1 silicate mineral and a layer type 2:1 silicate mineral in a ratio from about 50 / 50 to 5 / 95 wt.-% with respect to each other. The invention also relates to a container containing the dental retraction composition and to a kit comprising parts A and B, wherein part A comprises the dental retraction composition and part B comprises at least one accessory selected from the group of applier, dental impression material, retraction cap(s), a container for storing and dispensing the composition and combinations thereof. The invention further features a process of dispensing a dental retraction composition, the process comprising the steps: providing a dental retraction composition contained in a container, placing the container in an applier, and using the applier for dispensing the dental retraction composition out of the container.

The invention discloses a room-temperature addition silicon rubber putty-type dental impression material applied to primary impression. The room-temperature addition silicon rubber putty-type dental impression material is composed of a substrate component and a catalytic component in a blending manner, wherein the substrate component is composed of vinyl silicone oil, hydrogen silicone oil, a bulking agent, an enhancer and other assistants according to a certain ratio; the vinyl silicone oil contains more than two vinyl functional groups; the hydrogen silicone oil contains more than three Si-H functional groups; the catalytic component is composed of vinyl silicone oil, a catalyst, a bulking agent, an enhancer and other assistants according to a certain ratio; and the catalyst is a complex of chloroplatinic acid and vinyl silicone oil. The room-temperature addition silicon rubber putty-type dental impression material is rational in formula, and easy to operate, the elastic recovery of the cured material can be up to 99.8%, the curing time is 3-5 minutes, the shore hardness is about 65, and the dental impression material is finely copied into 0.02mm and clearly visible, and can be applied to fabrication of accurate dental crowns, and delivery of dental bridges, false teeth, articulation registration and oral cavity tissue.

A dental impression device (100) which has a buccal support (1a), a lingual support (1b), and a joining section (1c). The buccal support (1a) is disposed towards the buccal side of a dental arch; the lingual support (1b) is disposed towards the lingual side of the dental arch; and the joining section (1c), which connects the buccal and lingual supports, is disposed posterior in the mouth's no bite region. The supports (1a, 1b) form impression material holding areas which hold and secure dental impression material (9). The supports (1a,1b) and joining section (1c) form an open bite through area through which the lower and upper teeth's occlusal surfaces can make contact. Dental impression material (9) supported in the holding area by the supports is disposed in the open bite through area and is between the occlusal surfaces of the upper and lower teeth. The dental impression is then formed by a person making a closed bite into the impression material.

A dispensing cartridge, particularly for dental impression materials, formed from a plastic material having at least one inlet and at least one outlet, and including a metal reinforcement tube.

A method of taking a dental impression of dentition includes preparing the dentition with a gingival retraction cord. The gingival retraction cord having been contacted with a wetting agent. The method also includes thereafter contacting the dentition with a dental impression material.

Example embodiments of the present invention include hot melt dental adhesive materials that can create a reversible bond. In addition, example embodiments of the present invention include hot melt dental impression materials that can be used to accurately and efficiently obtain a dental impression. Moreover, example embodiments of the invention include devices and methods for use with the hot melt dental adhesive materials and the hot melt dental impression materials disclosed herein. The hot melt dental adhesive materials and the hot melt dental impression materials can provide dental professionals with dental materials that are more effective, efficient, and easier to use when compared to conventional dental adhesive materials and conventional dental impression materials.

A dental impression device (100) which has a buccal support (1a), a lingual support (1b), and a joining section (1c). The buccal support (1a) is disposed towards the buccal side of a dental arch; the lingual support (1b) is disposed towards the lingual side of the dental arch; and the joining section (1c), which connects the buccal and lingual supports, is disposed posterior in the mouth's no bite region. The supports (1a, 1b) form impression material holding areas which hold and secure dental impression material (9). The supports (1a,1b) and joining section (1c) form an open bite through area through which the lower and upper teeth's occlusal surfaces can make contact. Dental impression material (9) supported in the holding area by the supports is disposed in the open bite through area and is between the occlusal surfaces of the upper and lower teeth. The dental impression is then formed by a person making a closed bite into the impression material.

A dispensing cartridge, particularly for dental impression materials, comprises a locking member for locking a tip to the dispensing cartridge and / or to a container accommodated in the dispensing cartridge. The locking member has a first end and a second end, and is pivotally connectable with the dispensing cartridge at the first end. The second end of the locking member is adapted for releasable locking engagement with the tip. Furthermore, the locking member comprises a first portion that provides a grasping feature for the user for manipulating the dispensing cartridge at the locking member.

Attention has been focused on combining two types of dental impression materials of different qualities which has not been considered in conventional combined impression, and a dental impression film and a method of manufacturing the dental impression film are provided for making the two parts joinable. The dental impression film is formed of a polyethylene film and polyethylene / polyester films. The polyethylene film has, laminated by thermal adhesion on opposite surfaces thereof, respectively, the polyethylene / polyester films having bonding capability between a silicone impression material and an alginate impression material. The dental impression film having bonding capability is interposed between the silicone impression material and alginate impression material. This enables joining of the silicone impression material and alginate impression material, no longer requires the timing of hardening of the impression materials to be matched, and allows a precise impression at low cost using a small amount of silicone impression material.

A dental impression tray comprises a trough for receiving dental impression material and at least one retainer on at least a portion of an inner surface of the trough. The retainer comprises a plurality of anchoring elements, each of which comprises a first end, a second end, and an arc between the first and second ends. The first and second ends of the anchoring elements are connected to the inner surface of the trough, and the arcs project from the inner surface of the trough. The loop material of a hook and loop mechanical fastener is a particularly useful retainer.

A silicone material, preferably a multi-component addition-cured silicon impression compound, of at least one organopolysiloxane with at least two unsaturated groups in the molecule; at least one organohydrogenpolysiloxane with at least three SiH groups in the molecule; at least one platinum catalyst and at least one filler.

Dispensing cartridge, particularly for dental impression materials, the dispensing cartridge comprising: at least one compartment; and a locking assembly for releasably locking a tip with at least one of the compartments; the locking assembly comprising: a first movable member comprising a first end; a second movable member comprising a first end and a second end, where the second end of the second movable member is adapted to releasably lock the tip.

A dental impression material comprising a polyvinylsiloxane and a surfactant, wherein said surfactant imparts wettability to the composition, such that the material has a surface contact angle with water of less than about 10 degrees after about 15 seconds.

The invention discloses a room-temperature addition silicone rubber ultra-light dental impression material for secondary impression, which is a two-component material, wherein the two components include a matrix component and a catalysis component; the matrix component consists of vinyl silicone oil containing two vinyl groups, hydrogen-containing silicone oil with three or more Si-H groups, a compatibilizer, a reinforcing agent, an inhibitor and the like; the catalysis component consists of polysiloxane containing two vinyl groupss, a compatibilizer, a reinforcing agent, a hydrophilic modifier, a platinum catalyst and the like. The material disclosed by the invention is simple to operate, and the process is simple and convenient; the material meets the requirements in terms of curing time, elastic recovery, tear strength, Shore hardness, tiny duplication and the like; the permanent hydrophilicity of the impression material is improved, the volume shrinkage of the impression material is reduced, the dimensional stability of the material is improved, the duplication accuracy of the material is high, and the tiny duplication of the impression is clear.

The present invention relates to a dispensing cartridge, particularly for dental impression materials, formed from a plastic material having at least one inlet and at least one outlet, and comprising a metal reinforcement tube.

Dental article for preparing a dental impression comprising(i) a first paste composition, and(ii) a second paste composition reactive upon mixing with the first paste composition in a curing reaction, characterized in thatthe dental article is obtainable by forming a predetermined amount of the first paste composition and a predetermined amount of the second paste composition into a body wherein the first and second paste compositions are separated by an interface preventing mixing and curing of the first paste composition and the second past composition during storage of the dental article.