Abstract: A sinus dental implant includes a main body, an external thread, and a plurality of spiral cutting flutes. The main body has opposite connection end and drilling end. The drilling end has a centered recess surrounded by a drilling zone and communicable with the spiral cutting flutes. The external thread and the spiral cutting flutes are extended in two different spiral directions. The drilling zone is divided by the spiral cutting flutes into a plurality of drilling segments, each of which has two sides located at different heights to thereby include a lower and an upper drilling portion. When the sinus dental implant is implanted into an alveolar hole to contact with a bottom thereof, the lower drilling portions at the drilling end cut the bottom of the alveolar hole slowly, so that the sinus dental implant can drill further in the alveolar hole instead of idling therein.

Abstract: An orthopedic implant includes a main body, which has a downward tapered configuration formed of a plurality of steps of different diametrical sizes arranged along a drilling axis, each of the steps includes a cylindrical and a conical section, and the conical section of the lowest and diametrically smallest step is downward tapered into an apex; an external thread, which is externally formed on the main body to cover all the cylindrical sections but not the conical sections; a plurality of lateral cutting flutes, which are formed on the external thread into the main body and extended from the apex to the diametrically largest step with a spacing distance left between upper ends of the lateral cutting flutes and a top of the largest step. The orthopedic implant can be independently driven into a bone without the need of bone cutting using drill bits in advance and enables good osseointegration.

Abstract: An implant for dental prosthesis includes an implant having a sunken end formed into an abutment receiving section and a fastening section provided with a first female thread; an abutment being internally formed with an open-end passage provided with a second female thread and being fitted in the abutment receiving section to communicate with the fastening section; and a screw fastening member extending into both the open-end passage and the fastening section and being externally provided with a first male thread meshing with the first female thread and a second male thread meshing with the second female thread. With these arrangements, both the implant and the abutment are spirally connected to the screw fastening member to create frictional forces between each of them and the screw fastening member, so that the screw fastening member is prevented from loosening from the implant due to rotating of the screw fastening member.

Abstract: A sinus dental implant includes a main body, an external thread, and a plurality of spiral cutting flutes. The main body has opposite connection end and drilling end. The drilling end has a centered recess surrounded by a drilling zone and communicable with the spiral cutting flutes. The external thread and the spiral cutting flutes are extended in two different spiral directions. The drilling zone is divided by the spiral cutting flutes into a plurality of drilling segments, each of which has two sides located at different heights to thereby include a lower and an upper drilling portion. When the sinus dental implant is implanted into an alveolar hole to contact with a bottom thereof, the lower drilling portions at the drilling end cut the bottom of the alveolar hole slowly, so that the sinus dental implant can drill further in the alveolar hole instead of idling therein.

Abstract: A dental implantation assessment method includes the steps of creating a 3D teeth model; setting up a reference line, creating a health status table, and forming a multi-level frame model for an implant placement position on the teeth model; dividing each level of the frame model into a centered implant module and multiple surrounding test modules; dividing each test module into multiple assessment zones, and combining the latter with the health status table; selecting and placing a dental implant model in the frame model, and defining one assessment zone in each test module that contacts with a periphery of the dental implant model as a selected zone; and lastly, computing assessment values assigned to the selected zones to determine an object type of the dental implant model. A dentist can decide an optimal dental implant through dental implant model size selection and implantation simulation to ensure successful dental implant surgery.

Abstract: An orthopedic implant includes a main body, which has a downward tapered configuration formed of a plurality of steps of different diametrical sizes arranged along a drilling axis, each of the steps includes a cylindrical and a conical section, and the conical section of the lowest and diametrically smallest step is downward tapered into an apex; an external thread, which is externally formed on the main body to cover all the cylindrical sections but not the conical sections; a plurality of lateral cutting flutes, which are formed on the external thread into the main body and extended from the apex to the diametrically largest step with a spacing distance left between upper ends of the lateral cutting flutes and a top of the largest step. The orthopedic implant can be independently driven into a bone without the need of bone cutting using drill bits in advance and enables good osseointegration.

Abstract: A restorable zirconium dioxide-based one piece implant includes an implant root made of zirconium dioxide and having a bottom coarse thread portion mounted in a gum of a patient and a top fine thread portion at a top side of the bottom coarse thread portion, an abutment formed integral with a top end of the top fine thread portion of the implant root for mounting a crown, and a vertical center hole extending vertically downwardly from a topmost edge of the abutment into the implant root toward a bottom end of the bottom coarse thread portion of the implant root and having a length greater than ? of the combined length of the implant root and the abutment, so when the abutment breaks, the vertical center hole provides a space for the application of post and core technology to embed a post in the broken abutment to restore the abutment.

Abstract: A bone powder filling tool includes a handle connectable to a rotary dental instrument, and a bone powder propelling bit located one end of the handle. The bone powder propelling bit has opposing top end portion and bottom end portion, bone powder transferring grooves spirally extending around the periphery thereof from the top end portion to the bottom end portion, and bone powder propelling threads extending around the periphery thereof at different elevations for rapidly and uniformly propelling bone powder into the space between the sinus floor and the cortical bone to increase the thickness of the cortical bone in favor of the process of the subsequent tooth implanting, helping the doctor in charge of the operation save operating time and physical strength.

Abstract: A bone powder filling tool includes a handle connectable to a rotary dental instrument, and a bone powder propelling bit located one end of the handle. The bone powder propelling bit has opposing top end portion and bottom end portion, bone powder transferring grooves spirally extending around the periphery thereof from the top end portion to the bottom end portion, and bone powder propelling threads extending around the periphery thereof at different elevations for rapidly and uniformly propelling bone powder into the space between the sinus floor and the cortical bone to increase the thickness of the cortical bone in favor of the process of the subsequent tooth implanting, helping the doctor in charge of the operation save operating time and physical strength.

Abstract: A human body data matching method for medical cosmetic applications includes the step of providing a human body imaging system having a digital image pickup module for scanning and photographing human bodies to obtain image data, the step of rendering the image data into human digital images, the step of storing the human digital images in a databank, the step of fetching pre-stored storage human digital images of the person going to take an orthopedic or cosmetic surgery from the databank, and the step of matching the fetched human digital images and then performing the orthopedic or cosmetic surgery. This method prevents surgical errors due to misunderstanding in communication between the surgeon and the patient.