Abstract: A surgical instrument (40, 40A) for performing a goniotomy procedure includes a hand grip (44, 44A) having an elongated configuration with proximal and distal ends. The instrument (40, 40A) includes a tip (52, 52A) connected to the distal end (48, 48A) of the hand grip (44, 44A) which has a cutting means for creating a trabecular cleavage plane resulting in a remaining trabecular leaflet directly below Schwalbe's line in an eye to enhance drainage of aqueous humor from the eye. In one form, the cutting means includes a pair of sloping, arcuate cutting surfaces (70, 70A) that join to define an arcuate cutting edge (74, 74A).

Abstract: A dental apparatus includes a center gripping portion defining a central axis, a mesial portion and a distal portion. The mesial portion includes an open-oriented constant diameter tip, the first leg projecting at an obtuse angle and the second leg projecting orthogonally from the first leg toward the central axis. The distal portion includes a closed-oriented constant diameter tip, the first leg projecting at an obtuse angle parallel to the mesial tip first leg and the second leg projecting orthogonally from the distal tip first leg and away from the central axis parallel to the mesial tip second leg.

Abstract: Dental instruments, assemblies, and components for a dental instrument are described with a two-piece tip that includes a flexible tip end and a stiff shank. Various methods of assembly are described for securing the flexible tip end to the shank including utilizing a slot in the shank and one or more pins inserted through the tip and shank, a securing material, and forming the shank with a distal portion coupled to a portion of the flexible tip end.

Abstract: A dental instrument is configured to reduce user discomfort and increase control over the surgical edge of the instrument. The invention further discloses a dental instrument having a replaceable blade.

Abstract: A surgical instrument for the removal of frontal nasal recess cells includes an elongate handle, a first arm extending from a first end of the handle and a second arm extending from a second end of the handle. The first and second arms can extend in opposing directions. Each of the arms include a spherical terminal hub on their respective ends. A plurality of cylindrical fingers extend from each terminal hub at an angle, thereby providing an umbrella-like configuration. A spherical cap is attached to a free end of each cylindrical finger.

Abstract: A retractor system, kit and method of use includes a plurality of retractors for use in retracting a wound during a minimally-invasive hip replacement surgery to define an access space to a surgical site is discussed. Each of the retractors comprises a handle portion configured to be held by a user, a curved bend portion distal of the handle portion, and a wound contact portion attached to the curved bend portion. The wound contact portion is configured to contact tissue of the wound when at least a portion of the retractor is inserted through a skin incision that defines the wound. Each retractor also has a distal portion disposed distally of the wound contact portion, wherein the wound contact portion has a generally curved cross-sectional profile perpendicular to its length that is configured to prevent necrosis of the tissue during retraction. In addition, the cross-sectional profile provides an improved line of sight during the surgical procedure.

Abstract: Some embodiments of the invention provide an apparatus that secures, at a particular location in a bone, a guidance needle for guiding a cannulated device into the bone at the particular location. In some embodiments, the apparatus includes a tap for advancing the guidance needle into the bone. The guidance needle is used to guide the cannulated device to the particular location in the bone. In some embodiments, the tap is threaded and used to create a threaded guide path to further direct the placement of the cannulated device within the bone.

Abstract: An ultrasonic scaler tip, capable of effectively removing tartar or the like adhered around an artificial tooth root, is provided. An ultrasonic scaler is also provided, which prevents metal material (for example, ion), except for titanium or titanium alloy, from adhering around the artificial tooth root and disturbing tissue growth and adhesion to the tooth root.

Abstract: A tool for inserting a cylinder of a penile prosthesis into a patient includes a handle extending between first and second guides. The first guide is located at a first end portion of the tool and includes a first cylinder cradle on a first side of the tool and a first tubing cradle on a second side of the tool that is opposite of the first side of the tool. The second guide located at a second end portion of the tool and includes a second cylinder cradle on one of the first side or the second side of the tool and a second tubing cradle on the other side of the tool. The lateral width of the first tubing cradle and the second tubing cradle is the same and a lateral width of the first cylinder cradle is smaller than a lateral width of the second cylinder cradle.

Abstract: A gingival graft stabilizer has an elongate member and slanted arms extending from opposing ends of the elongate member. An anterior guide extends from one of the arms and a posterior guide extends from the other arm. The anterior guide includes spaced protrusions extending from an upper end of the anterior guide. The posterior guide includes spaced protrusions extending from opposing sides of the posterior guide. During suturing of a gingival graft, a dental surgeon holding the elongate member can stabilize and position a gingival graft on anterior gingiva using the anterior guide or on posterior gingiva using the posterior guide. Sutures can be made in the spaces between and around the protrusions of the anterior guide or the posterior guide.

Abstract: An interproximal dental tool for use by dental practitioners which contains several significant improvements over prior art interproximal dental tools which has an upper surface extending to a sidewall and a body section which in turn grasps a razor or blade member having a blade extending outwardly from the interproximal dental tool and which is placed between the patient's teeth to grind portions of teeth between two adjacent teeth. The tool is used for professional practice only and not by consumers. The significant improvements over the prior art interproximal dental tools are as follows: The exterior top surface and the exterior side surfaces of the present invention interproximal dental tool are made of grippable material which is primarily made of rubber.

Abstract: The present invention relates to a bone carving tool for creating a convex ridge for the inner border of the initial hole for placement of an implant hole, and comprises: a bone carving unit with tapering diameters ranging from 2 to 7 mm, which has a plurality of triangular-shaped projections disposed on the lateral sides thereof forming a triangular prism-shape; and a supporting portion for supporting the bone carving unit connected to the bone carving unit at a lower aspect thereof, wherein the diameter of the bone carving unit gradually narrows towards the upper aspects thereof and the uppermost aspects of the plurality of triangular-shaped projections and the triangular prism-shape coalesce to a single point.

Abstract: An osteotome for sinus lift procedures includes a body interchangeable with various handles. The body includes a shaft that is releasably received into the handle, and a tip portion. The tip portion may be directly utilized for ridge expansion/bone compression, or a succession of tip members may instead be received thereon to provide suitable diameter escalation to create the socket. A conduit in the tip portion interconnects with a conduit in a hydration port and a conduit in a tip member. A hose couples the hydration port to a syringe, to deliver fluid out the tip member to lift the membrane. Graduated syringe markings permit delivery of measured fluid quantities to control the amount of lift. A second hydration port is coupled to a graduated cylinder through a valve, which is opened after lifting is complete, to measure the fluid released. A loss of fluid measured indicates a sinus tear.

Abstract: A cutting blade having a pair of razor-sharp cutting edges and adapted to be oscillated back and forth in order to cut through the periodontal ligaments which surround a tooth root of a patient during dental surgery so that the root or a portion of a tooth root can be removed from the patient's jawbone. The cutting blade has a connecting shaft at one end by which the blade can be coupled to the driver head of an oscillating dental handpiece. Located opposite the connecting shaft is a cutting end having a tissue debris transfer canal at the bottom or inside thereof and a smooth tissue gliding surface at the top or outside. A positioning collar surrounds the connecting shaft to provide to the oral surgeon a visual indication of the alignment of the pair of cutting edges of the cutting blade relative to the tissue to be cut.

Abstract: Systems and methods are provided that relate to a dental implant procedure. In one example, a dental implant system may include a dental implant having an implant shaft and a thread that wraps in a helical fashion around the implant shaft. An implant shaft socket may be located in the implant shaft adjacent to a proximal end of the implant. The implant may also include a circular lip that extends axially from a distal end of the implant. The circular lip may be configured to seat into a circular implant retention groove at a bottom floor of a predrilled implant hole in a jaw bone.

Abstract: A medical cutting instrument which stably exhibits high joint strength obtained by brazing. A cutting instrument (A) is configured by providing a working section (2) to the front end of a shank section (1), the working section (2) consisting of a carbide or a ceramic, the shank section (1) being constructed from a round stainless steel bar or a round tool steel bar. The shank section (1) and the working section (2) are connected through a brazed section (3). The brazed section (3) is the portion at which the shank section (1) and the working section (2) are brazed together while brazing surfaces, which are provided with protrusion sections formed on the shank section (1) and/or the working section (2), are caused to be in contact with each other. The protrusion sections provided on the brazing surfaces each comprise sloped surfaces (5b) having an apex (5a), and the height of the sloped surfaces (5b) is set in the range of 0.5%-8%, inclusive, of the diameter of the brazing surface of the shank section (1).

Abstract: A dental handpiece having a reciprocal rotation means for converting a rotary motion to a reciprocating rotating motion is disclosed. The reciprocal rotation means includes a rotary body having input- and output-side guide grooves, input- and output-side semispherical concave surface formed at the ends of input- and output-side shaft part, respectively, of a rotary shaft extending in a grip of the handpiece, and input- and output-side guide pin protruding from the input- and output-side semispherical concave surface, respectively for engagement in the input- and output-side guide grooves, respectively.

Abstract: [Problem] To provide a method for manufacturing a medical cutting tool and a medical cutting tool that will not rust and that is capable of stably demonstrating high strength. [Solution] A working section (2) formed by a cemented carbide or ceramic is brazed to the tip of a shank part (1) formed by a round bar-shaped austenitic stainless steel, thereby constituting a cutting tool (A). The shank part (1) comprises a shank (1a), a neck (1b), and a joint (1c) to which the working section (2) is brazed. At least part of the stainless steel near the joint (1c) of the neck (11b) and in the joint (1c) has a fiber-like structure. The structure of the stainless steel in the joint (1c) on the working section (2) side has a granular structure.

Abstract: Disclosed is a dental instrument for cutting soft tissue. The dental instrument for cutting soft tissue according to the present invention includes: a main body having an inlet portion for inserting soft tissue to be cut into the main body; a cutter blade arranged in the main body such that at least a part of the cutter blade is exposed outwardly through the inlet portion; and a lid for covering the upper portion of the main body. The cutter blade includes a first cutter blade having a first cut depth, and a second cutter blade arranged in the vicinity of the first cutter blade, and which has a second cut depth shallower than the first cut depth. The dental instrument of the present invention makes it possible to cut the soft tissue in the deep part of a mouth in an easy and simple process, thereby improving the convenience of soft tissue implantation.

Abstract: A dental instrument includes a head (2) having cutting edges (1) and made of a ceramic material, and a shaft (3) which can be clamped into a driving member and is made of a metal material. The head (2) includes a mounting plug (4) having an external thread (5) and the shaft (3) includes a front-side threaded recess (6) into which the mounting plug (4) can be screwed. At least one locking recess is formed between the mounting plug (4) and the threaded recess (6).

Abstract: A multi-rooted tooth extraction device can include a cutting tool that can be inserted between the roots of a tooth to be extracted. A bracing tool can be coupled to the cutting tool to brace against the crown and a pressure can be applied such that the tooth can be cut from the root to the crown. The separate pieces of the tooth can then be easily removed. The ability of the bracing tool to be decoupled from the cutting tool can allow for improved leverage and usability of the cutting tool while being inserted between the roots.

Abstract: Apparatus is provided for use with a gingival periosteum lining a bone. The apparatus comprises a periosteal mesher, which comprises a mesher surface, and a plurality of cutting elements distributed over the mesher surface, which are configured to cut the gingival periosteum to increase flexibility thereof. Other embodiments are also described.

Abstract: The various embodiments of the present invention provide an inferior alveolar nerve (IAN) protector instrument for proper protection of neurovascular bundle and to prevent the traumatic injuries during oral and maxillofacial surgeries. The IAN protector instrument made of stainless steel has a shank, a blade and a handle. The shank is formed to serve as a soft tissue flap retractor while supporting the blade. The handle is designed with a finger rest for more control and in the pear shape for palm grasp. The shank is bent twice at 120 degrees. The blade is curved with a radius of curvature equal to ?-? of a complete circle. The dissecting edge and both lateral line angles are rounded to avoid untoward cutting. The instrument is designed separately for right and left sides of the mouth.

Abstract: A piezotome operation unit for lifting a maxillary sinus at a position of placement of an implant upon lifting the maxillary sinus, which forms and enlarges the vertical hole with ease in a remaining bone of the maxillary sinus though vertical approaching, and upon forming a lateral window below a malar bone through lateral approaching, prevents a maxillary membrane from becoming damaged, thereby ensuring continuous, safe lifting so that the operating time is shortened and the efficiency of the operation is maximized.

Abstract: The present invention relates generally to methods of performing periodontal surgeries, and instruments for performing said surgeries. A method of performing periodontal surgery to correct a gingival defect of a patient according to a general embodiment comprises the steps of making an incision at or near a fornix of the patient near the gingival defect, inserting an instrument into the incision to detach a flap, advancing the flap horizontally without enlarging the incision, elevating a papilla within the flap, stretching the flap to cover the gingival defect, and pressing against the flap to promote fibrin formation. An instrument for performing periodontal surgery according to one general embodiment comprises a handle, a first shank connecting to and extending from the handle, a connector section, and a blade section.

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: Disclosed is a dental instrument for cutting soft tissue. The dental instrument for cutting soft tissue according to the present invention includes: a main body having an inlet portion for inserting soft tissue to be cut into the main body; a cutter blade arranged in the main body such that at least a part of the cutter blade is exposed outwardly through the inlet portion; and a lid for covering the upper portion of the main body. The cutter blade includes a first cutter blade having a first cut depth, and a second cutter blade arranged in the vicinity of the first cutter blade, and which has a second cut depth shallower than the first cut depth. The dental instrument of the present invention makes it possible to cut the soft tissue in the deep part of a mouth in an easy and simple process, thereby improving the convenience of soft tissue implantation.

Abstract: To easily incise a gingiva particularly at a tongue side and a lip side of a jawbone formed as a bank shape, a gingiva incising device has a cylinder portion, which is longer than a thickness of a gingiva and has approximately the same diameter as a diameter of a dental implant fixture, at a leading end side of a main body portion having a grip portion at a rear end side, and has a cutting blade portion for incising the gingiva formed on a whole periphery of the leading end of the cylinder portion, and the cutting blade portion has a portion which protrudes gradually from a position closest to the grip portion toward a position away from the grip portion.

Abstract: A device (10) for debridement of dental implants, which are arranged into bone tissue and are surrounded by gingiva of a jaw of a human being, has a debriding element (11) and an axle (12) with a fastener (13) for attachment to a rotational apparatus The debriding element (11) has at least one cleaning leg (20) with at least one cutting edge for engagement with the implant, the gingiva and/or the bone tissue According to a second embodiment the debriding element has several portions each having said cleaning leg (20) and the portions are connected to each other Said cleaning leg (20) has a free end (21) shaped as a hook (30) with a point (31), which is provided with said cutting edge The device (10) may have several cleaning legs (20), each provided with several cutting edges A method for cleaning and abrasion of dental implants and implant sites are provided, which uses the device (10) for abrasion and cleaning.

Abstract: A dental implant abutment arrangement for use with a dental implant has an abutment with a proximal retaining member and an axial bore. The retaining member is rotationally asymmetrical and has a transverse area that is large enough to resist rotation and axial motion of the abutment in a dental impression material. The axial bore has a tapered distal bore portion with an inner taper for matching an outer taper of an abutment receiving portion of an implant, a cylindrical proximal bore portion and an intermediate threaded portion having a small diameter than the distal and proximal bore portions and a larger diameter than an internal thread of the implant. The axial bore has distal and proximal steps between the distal bore portion and a distal end of the threaded portion and between the proximal bore portion and a proximal end of the threaded portion.

Abstract: A surgical tool for preparing a surgical sinus-lift osteotomy has a defined thread geometry in series with an osteotome tip to cut, crack and push bone from the sinus floor upward into the sinus cavity in a tactual, gentle and controlled motion. The apical osteotome tip is driven into a pre-drilled pilot osteotomy after the cutting threads are engaged and rotated until the sinus floor is cracked free. Once the bony sinus floor is cracked free, a fluid passageway can be pressurized with a sterile fluid at a defined pressure to release and push the sinus membrane upward into the sinus cavity to create a desired apical cavity for grafting while minimizing the risk of compromising or tearing the sinus membrane.

Abstract: An improved flapless dental implant punch is disclosed. This punch is designed to reduce or eliminate the present cumbersome linear incision method presently used for dental implant procedures. In one embodiment, the invention is a disposable or reusable punch with a handle on one end, and a shank with a roughly cylindrical hollow punch with a circular cutting edge, usually around 1-6 mm in diameter, and often around 2-3 mm in diameter. Unlike prior art punches, however, the invention is configured to additionally make a number of precisely defined linear incisions in the gum tissue during the punching process. As a result, after the underlying jaw bone is exposed by the action of the device, the gum tissue lining the walls of the exposed hole now have enhanced mobility due to the presence of multiple short incisions radiating away from the sides of the gum hole.

Abstract: A bone cutting and injecting device for cutting maxillary bone and injecting a filler through the maxillary bone under a subantral membrane to separate the subantral membrane from the maxillary bone and fill the space formed therebetween. The device includes a hollow tubular element having a diameter sized to be inserted into a pilot hole in the maxillary bone, a piston longitudinally displaceable within the hollow tubular element, and a cutter mounted to the piston and operably disposed adjacent the distal end of the hollow tubular element. A fluid path is defined through the hollow tubular element for guiding the filler, and the cutter is configured to redirect the filler in a transverse or radial direction relative to the longitudinal axis of the tubular element.

Abstract: A periotome for use in dental extractions and in placing of dental implants. The dental instrument is provided with a thin blade having cutting surfaces that cut the ligaments which bind the tooth to the bone in an up and down sawing motion.

Abstract: The invention relates to a method and device for placing implants (1) using a surgical template (11) which is made from tomographic cuts in the patient's jawbone (7). According to the invention, step drills (4) and calibrating drills (5), having a single standard diameter for each type of implant (1), are guided through drill bushings (18) which are inserted into bores (15) in the template (11) in order to produce any drilling sequence corresponding to an implant plan. The penetration depth of the drills (4, 5) is controlled by the height of the bores (15) or by the drill rings (21). The aforementioned template (11) bores (15) serve as a guide for the precise placement of the implants (1) owing to the adapted implant supports (3). Moreover, washers (23), which are mounted around the implant supports (3), limit compression in relation to the implants (1) while said implants are being placed (20).

Abstract: The present invention relates generally to methods of performing periodontal surgeries, and instruments for performing said surgeries. A method of performing periodontal surgery to correct a gingival defect of a patient according to a general embodiment comprises the steps of making an incision at or near a fornix of the patient near the gingival defect, inserting an instrument into the incision to detach a flap, advancing the flap horizontally without enlarging the incision, elevating a papilla within the flap, stretching the flap to cover the gingival defect, and pressing against the flap to promote fibrin formation. An instrument for performing periodontal surgery according to one general embodiment comprises a handle, a first shank connecting to and extending from the handle, a connector section, and a blade section.

Abstract: The invention concerns a piezo insert and a piezo packer for implant surgical operation with a piezoelectric device. The piezo insert according to the invention consists of a piezo insert body one end of which is inserted in and fixed to a hand piece of the piezoelectric main device; an insert pole extending from the other end of the piezo insert body; and an insert tip formed at the end of the insert pole. The piezo packer consists of a piezo packer body one end of which is inserted in and fixed to a hand piece of a piezoelectric main device; a packer pole extending from the other end of the piezo packer body and a packer tip formed at the end of the packer pole.

Abstract: Tooling and methodologies for separation and dissection of the subantral membrane from the floor of the maxillary sinus. The tooling and associated methodology employ a handle and one or more support structures extending therefrom. A thin member extends from the distal end of the support structure(s). The thin member has a first peripheral region disposed opposite a second peripheral region. The first peripheral region is joined to or integrally formed with the distal end of the support structure(s). The second peripheral region defines a thin blade-like section for dissecting the subantral membrane from the floor of the maxillary sinus. In the preferred embodiment, the blade-like section is angled downward away from the distal support structure, which aids in positioning the blade-like section on the floor of the maxillary sinus.

Abstract: An endodontic cutting instrument for preparing root canal spaces of non-lengths standard length has a cutting portion that is equal to or greater than about 17 mm in length. The instrument is shaped to produce a conical root canal space with a uniform taper along the entire length of the conical root canal space, from an apex to a coronal opening thereof. The instrument may be part of an endodontic kit that includes multiple cutting instruments with respective cutting portions of different lengths and/or with respective cutting portions shaped to produce conical root canal spaces with different tapers. Optionally, the cutting instrument is provided with indicia for identifying its taper, the length of its cutting portion, or both. The indicia enables a user to quickly identify a suitable cone device for filling a root canal space prepared with the instrument.

Abstract: A dental cleaning attachment for a dental handpiece which comprises a disposable prophy angle having a neck and a right angle head, wherein the neck is removably attached to the dental handpiece. A polishing cup is rotatably connected to the head of the prophy angle. An encompassing toroidal pouch has a tube fluidly formed to and extending from the toroidal pouch. The tube runs externally along a top surface of the neck, is bent at a right angle, goes through a rear aperture in the head of the prophy angle and into a top aperture in the polishing cup. A paste material is carried within the toroidal pouch, the tube and the polishing cup. When the dental handpiece is gripped by a hand of a dental hygienist and the polishing cup is applied to a tooth, any finger of the hand of the dental hygienist can squeeze the toroidal pouch to force some of the paste material through the tube and out of the polishing cup, so that the paste material can be applied onto the tooth for cleaning.

Abstract: An improved dental scalpel provides a convenient possibility to make accurate surgical operations into oral cavity with the extraordinary access to the different oral cavity areas. An improved dental scalpel includes a coupling device, a handle comprising an opening in the coupling portion of the handle including an inner thread along handle main axis, and a blade portion comprising a blade holder including the coupling portion at the handle side of the blade holder and a blade on another side of the blade holder.

Abstract: The present invention relates to a new dental implant that includes a generally cylindrical section and a tapered section. The implant has a thread making a plurality of turns around the exterior surface. The implant is installed into a bore that includes a generally cylindrical portion and a tapered portion. The dimensions of the cylindrical section and the tapered section of the implant are at least the dimensions of the generally cylindrical portion and the tapered portion of the bore, respectively. The bore is preferably shaped by a shaping drill that has a profile that generally mimics the profile of the implant. The female threads are preferably developed through a compression tap or a series of compression taps that cause the bone tissue defining the female threads to have increased density.

Abstract: A dental instrument having a blade and an elongated guide connected to the blade. The guide is sized to fit within the bore of a dental implant and is placed at a predetermined radial location with respect to the blade. The guide may selectively translate in a direction parallel to the cutting plane of the blade. The instrument includes a geometric step or a conical surface integrated into the guide so as to prevent the guide from being inserted further than a predetermined distance into the implant.

Abstract: A bone spreader for preparing a site for dental prosthesis implantation consists of a relatively flat, wide, blade component and a longitudinal ridge component centrally disposed on one side of the blade component. Penetration of the instrument effects spreading of cortical bone tissue and produces a recess that includes a groove portion within which the root element of a dental implant can be accommodated.

Abstract: A syringe system for delivering a dental material comprises a barrel configured for containing the material, a plunger configured for extruding the material, a divider configured for sectionalizing the material while it is being extruded, and a tool configured for detachment of the divider. The divider comprises at least one cutting plate that is affixed to the barrel and the tool comprises at least one recess configured for engaging the at least one cutting plate when the tool is inserted within the barrel, such as in a press fit arrangement. When the tool is axially rotated relative to the barrel, the at least one cutting plate can be effectively sheared away from the barrel. The tool may comprise a cap that is configured for sealably closing the syringe or a tool separate from the syringe.

Abstract: A dental instrument having a blade and an elongated guide connected to the blade. The guide is sized to fit within the bore of a dental implant and is placed at a predetermined radial location with respect to the blade. The guide may selectively translate in a direction parallel to the cutting plane of the blade. The instrument includes a geometric step or a conical surface integrated into the guide so as to prevent the guide from being inserted further than a predetermined distance into the implant.

Abstract: The present invention relates to a new dental implant that includes a generally cylindrical section and a tapered section. The implant has a thread making a plurality of turns around the exterior surface. The implant is installed into a bore that includes a generally cylindrical portion and a tapered portion. The dimensions of the cylindrical section and the tapered section of the implant are at least the dimensions of the generally cylindrical portion and the tapered portion of the bore, respectively. The bore is preferably shaped by a shaping drill that has a profile that generally mimics the profile of the implant. The female threads are preferably developed through a compression tap or a series of compression taps that cause the bone tissue defining the female threads to have increased density.

Abstract: Disclosed is a manual hand ratch reamer for a dentist, which is used for forming a cylindrical hole in an alveolar bone of a patient upon implementing a dental implantation surgery. The manual hand ratch reamer for a dentist comprises a front piece body, a rear piece body and a rotating driver which are connected one with another in a manner such that the rotating driver can be independently rotated with respect to the front piece body and the rear piece body. A reamer tip locking section of the rotating driver, to which a reamer tip is secured, includes a connection device which is connected to the rotating driver by passing through the inside of the front piece body. When the rotating driver is rotated with respect to the front piece body, the front piece body is prevented from being rotated.

Abstract: This invention relates to a periodontal instrument and curettage method for separating and removing calculus and diseased granulation tissue from the tooth surface and periodontal cavity in deep pockets greater than 10 mm. The invention is comprised of a straight shaft, a distal portion in parallel orientation with and terminating in a spoon-shaped blade with a rounded tip and continuous sharp edge. The approximate 90 degree angle orientation between the distal and proximal shank portions, rounded blade tip, and parallel alignment of the blade face relative to the distal shank portion enhance maneuverability, accessibility, and efficiency and minimize tissue trauma during periodontal curettage.

Abstract: Disclosed is a manual hand ratch reamer for a dentist, which is used for forming a cylindrical hole in an alveolar bone of a patient upon implementing dental implantation surgery. The manual hand ratch reamer for a dentist comprises a front piece body, a rear piece body and a rotating driver which are connected one with another in a manner such that the rotating driver can be independently rotated with respect to the front piece body and the rear piece body. A reamer tip locking section of the rotating driver, to which a reamer tip is secured, includes connection means which is connected to the rotating driver by passing through the inside of the front piece body. When the rotating driver is rotated with respect to the front piece body, the front piece body is prevented from being rotated.