Patent Publication No. 2010/0143861, published June 10, 2010, entitled “APPARATUS AND METHODS FOR MONITORING A TOOTH,” the entire disclosure of each of which is hereby incorporated by reference herein for all that it teaches or discloses. FIGURE 1 is a cross section schematically illustrating a typical human tooth 10, which comprises a crown 12 extending above the gum tissue 14 and at least one root 16 set into a socket (alveolus) within the jaw bone 18. Although the tooth 10 schematically depicted in FIGURE 1 is a molar, the apparatus and methods described herein may be used on any type of tooth such as an incisor, a canine, a bicuspid, or a molar.
Different types of fluid streams (e.g., a jet or a spray) can be generated by the nozzle 64 and/or orifice 66 based at least in part on flow parameters, nozzle geometry, surface quality of the orifice 66 (or other surfaces in the nozzle 64), and so forth. The method also comprises impacting the jet on the impingement surface, and passing the jet through at least a portion of the liquid filling the at least a substantial portion of the cavity prior to the impacting. The method comprises generating a high-velocity liquid beam with a nozzle disposed in an interior of a tooth, and impacting an impingement surface disposed in a fluid environment located in the interior of the tooth with the high- velocity liquid beam.
Dolor De Hombro
62, which is configured to hold a nozzle 64. The nozzle mount 62 may be tightly screwed into the distal end 58 of the barrel 52 to secure the nozzle 64 adjacent to a distal end of the passageway 52. As will be described with reference to FIGURES 11A-11C, the nozzle 64 can be disposed in different locations in other embodiments of the handpiece. In some embodiments, the distal end 58 of the handpiece 50 may include additional components, for example, to assist guiding or directing the jet 60 and/or to provide aspiration.
For example, in various embodiments, the liquid jet emitted from the orifice 66 can be a CC jet, a jet with a perturbed surface, or a spray of fluid (as measured in air). For example, in some embodiments, the liquid in the fluid source 44 can be chilled to reduce the temperature of the high velocity jet generated by the system 38, which may reduce or control the temperature of the fluid inside a tooth. For example, in some implementations, away from narrow boundary layers near the outer surface of the jet 60 (if any), the jet velocity is substantially constant across the width of the jet. In some implementations, the CC jet may have velocities in a range from about 100 m/s to about 300 m/s, for example, about 190 m/s in some embodiments. Thus, for example, those skilled in the art will recognize that the inventions disclosed herein may be embodied or carried out in a manner that achieves one advantage or group of advantages as taught herein without necessarily achieving other advantages as may be taught or suggested herein.
Dolor En El Hombro
In some implementations, the pressure wave generator may be coupled to a handpiece or portable jet housing that may be maneuvered in the mouth of the patient so as to position or orient the pressure wave generator relative to a desired tooth under treatment. In some implementations, the handpiece 50 can be configured to be coupled to a positioning device (e.g., a maneuverable or adjustable arm). FIGURE 3 is a side view schematically illustrating an embodiment of a handpiece 50 comprising an embodiment of a positioning member configured to deliver the liquid jet 60 to a portion of the tooth 10. In various embodiments, the positioning member comprises a guide tube 100. Embodiments of the handpiece 50 can be used with any of the embodiments of the guide tubes 100 described herein.
Dolor Neuropático Fisterra
In some embodiments, the system 38 may produce a coherent, collimated jet of liquid (further described below). Dolor lumbar tumbado . FIGURE 4A schematically illustrates an embodiment of a guide tube 100 secured to the nozzle mount 62. In some embodiments, the guide tube 100 can be formed integrally with the nozzle mount 62. In other embodiments, the guide tube 100 can be secured to the nozzle mount 62 via welding (e.g., laser welding), adhesives, fasteners, etc. The orifice 66 may, but need not, be formed at an angle to a proximal surface 70a of the nozzle 64. The angle may be about 0 degrees (e.g., the orifice is substantially perpendicular to the proximal surface 70a), about 10 degrees, about 20 degrees, about 30 degrees, about 40 degrees, about 50 degrees, about 60 degrees, or some other angle. The nozzle 64 can comprise a circular, disc-like element having an orifice 66 formed therein.
Various aspects of the nozzle 64 (e.g., surface finish of the orifice) may be selected to provide desired fluid flow or jet properties. The system 38 comprises a motor 40, a fluid source 44, a pump 46, a pressure sensor 48, a controller 51, a user interface 53, and a handpiece 50 that can be operated by a dental practitioner to direct the jet 60 toward desired locations in a patient’s mouth. FIGURES 4 and 4A are cross-section views schematically illustrating another embodiment of a handpiece that can be used to deliver the high- velocity liquid jet. In one aspect, a dental instrument comprises a positioning member having a channel configured to deliver a high- velocity liquid jet to a cavity in a tooth. FIGURE 2 is a block diagram schematically illustrating an embodiment of a system adapted to produce a high- velocity liquid jet. The handpiece 50 comprises an elongated tubular barrel 52 having a proximal end 56 that is adapted to engage tubing 49 from the system 38. The barrel 52 may include features or textures 55 that enhance grasping the handpiece 50 with the fingers and thumb of the operator.
In some cases, the handpiece 50 can be configured to be portable, movable, orientable, or maneuverable with respect to the patient. Further details with respect to CC jets that can be produced by embodiments of the system and apparatus described herein can be found in U.S. Optionally, a flow restrictor 210 can be disposed at the distal end 58 of the handpiece 50. In the illustrated embodiment, the flow restrictor 210 substantially surrounds the guide tube 100. As will be further described with reference to FIGURE 25, the flow restrictor 210 may be configured to contact a portion of the tooth 10 during a dental treatment and may restrict, inhibit, or reduce backflow of fluid out of the tooth during treatment. FIGURE 23 schematically illustrates an embodiment of a handpiece comprising a liquid flow tube configured to provide a stream of liquid to a tooth location.
Tipos De Dolor Oms
FIGURES 8 A-8C are side views that schematically illustrate additional embodiments of guide tubes. FIGURES 22A-22C are cross-section views schematically illustrating embodiments of handpieces in which nozzle is not oriented perpendicular to the axis of the guide tube. Dolor de un lado de la espalda . The nozzle 64 may be fabricated from a suitably rigid material that resists deformation under high pressure such as, for example, metal, ceramic, or synthetic sapphire or ruby. The disclosed apparatus and methods advantageously may be used with root canal cleaning treatments, for example, to efficiently remove organic and/or inorganic matter from a root canal system. A bubble detector (not shown) may be disposed between the fluid source 44 and the pump 46 to detect bubbles in the liquid and/or to determine whether liquid flow from the fluid source 44 has been interrupted or the container has emptied. The drawings are provided to illustrate example embodiments described herein and are not intended to limit the scope of the disclosure.
Various non-limiting aspects of the present disclosure will now be provided to illustrate features of the disclosed apparatus and methods. For purposes of this summary, certain aspects, advantages, and novel features of the inventions are summarized. The distal end portion of the positioning member may include an impingement surface on which the liquid jet impinges and is deflected into jets or spray. These (and/or other) effects may lead to efficient cleaning of the pulp cavity of the tooth. Patent Publication No. 2007/0248932, published October 25, 2007, entitled “APPARATUS AND METHODS FOR TREATING ROOT CANALS OF TEETH,” and/or U.S. The present disclosure describes apparatus and methods for performing dental procedures such as, e.g., endodontic procedures. FIGURES 5 A and 5B are cross-section views that schematically illustrate embodiments of a nozzle 64 having an orifice 66. Nozzles and or orifices can be configured in a number of ways to provide a CC jet.
Embodiments of the nozzle 64 can be manufactured by a variety of processes including, e.g., electroforming (including nickel-cobalt electroforms), micro-plunge electrical discharge machining (EDM), laser cutting, etc. Embodiments of the guide tube 100 can be manufactured using a variety of process including, e.g., metal injection molding, laser cutting or welding, micro welding, etc. Patent No. 6,497,572, issued December 24, 2002, entitled “APPARATUS FOR DENTAL TREATMENT USING HIGH PRESSURE LIQUID JET,” U.S. § 119(e) of U.S. Remedio casero para dolor lumbar . FIGURE 3 is a side view schematically illustrating an embodiment of a handpiece comprising an embodiment of a guide tube for delivery of the liquid jet to a portion of a tooth. The handpiece 50 can be shaped or sized differently than shown in FIGURE 3 (or other figures herein). Throughout the drawings, reference numbers may be re-used to indicate a general correspondence between referenced elements.
- Inflamación pélvica crónica
- Dolor abdominal, en el pecho o en otras partes del cuerpo
- Propicia el buen funcionamiento de los huesos y las articulaciones
- ½ taza de vinagre de manzana (125 ml)
- Water-conveyance apparatus comprising
- Alternate shapes of pivot structures to optimize fluid flow around them
- La muerte o desaparición de un ser querido (duelo)
- Para uso como constructor muscular o anabólico (activador enzimático de la síntesis proteica)
The backflow restrictor may be configured to inhibit backflow of fluid out of an opening in the tooth during operation of the liquid jet. In addition, motion of the endodontic file may force organic material through an apical opening into periapical tissues. Without subscribing to or being limited by any particular theory or mode of operation, the flow of the submerged portion of the liquid jet may generate a cavitation cloud within the treatment fluid. The distal end portion of the positioning member may include one or more openings that permit the deflected liquid to exit the positioning member and interact with the surrounding environment in the tooth. 0 to about 0.7 is that cavitation, which may cause damage to the nozzle, may not occur. FIGURES 7A-7B are side views schematically illustrating embodiments of the distal ends of handpieces comprising embodiments of guide tubes. FIGURES 10A-10F are cross-section views schematically illustrating embodiments of guide tubes.