TWI519278B - Sinus special implant - Google Patents

Description

Sinus special implant

The invention relates to a special implant for sinus, in particular to a special sinus implant for the upper gum bed, which can synchronously push different amounts of bone powder or filler into the sinus layer and the upper layer while effectively preventing the penetration of the sinus layer. In the gap pushed open by the gums.

Generally, during the implant process, the dentist usually performs the condition of the gum before the implant is implanted. If the thickness of the cortical bone is found to be insufficient, the bone powder or filler must be added to increase the thickness of the cortical bone. Different states of the patient's dental region can be determined by filling in different amounts of bone powder or filler to form the thickness of the bone layer of the implant.

Attached to Fig. 1 shows that the thickness of the cortical bone (such as the gums) 101 of the sinus floor 100 implant region is insufficient to be increased, and the prior art mainly performs the cutting of the bone of the set size opening 102 in the cortical bone 101. Osteotomy; then, as shown in Fig. 2, the sinus layer 100 is first separated, and then a bone growth powder 103 or filler is filled between the sinus layer 100 and the cortical bone 101 to increase the cortical bone. The thickness of 101 is convenient for the subsequent dental implant procedure. During the process of filling the bone powder or filling, different amounts of bone powder or filler can be filled according to the condition of the implanted part of the patient to form the desired thickness of the bone powder layer. At the same time, in the above-described filling space procedure in which the sinus layer 100 is separated to form bone powder or filling, the dentist must perform the procedure of pushing the sinus layer 100 away with great care, avoiding the situation of penetrating the sinus layer 100 and causing serious sequelae.

The early implant bone cement tool was mainly provided with a push pin 104 at the end of a grip for filling the bone powder 103 in the space below the separated sinus layer. However, the use of such a hand tool for bone powder filling is very difficult and slow and time consuming, in addition to improving the patient's discomfort, it is also a considerable burden on the doctor in terms of time and physical strength.

In the applicant's new patent application No. M440763 "Bone Dental Powder Filler", a dental bone filling tool is provided, which allows the bone powder or filling to be made through the preset feeding channel and most guiding screw teeth. Filling the space below the separated sinus layer in a uniform and rapid manner, in a faster way, can effectively reduce the fatigue of the physician and shorten the period of patient discomfort. However, this filler is still a single individual tool, and the implantation procedure of the implant is performed after the bone powder is filled.

The object of the present invention is to provide a dental implant body for sinus, which can simultaneously push bone powder or filler during the implantation of the implant body, and effectively avoid injury and penetration of the sinus layer.

Another object of the present invention is to provide a dental implant for a sinus which can be used to select the desired amount of bone powder or filler to be filled during implantation of the implant.

In order to achieve the above object, the implant has a plurality of positioning screws on the outer circumference of the implant, and an actuating assembly hole is disposed inside; the implant body is provided with more than one through the entire positioning screw a spacing spiral channel of the positioning screw; the implant body is provided with a reducing diameter pushing portion at an end of the plurality of positioning screws, the pushing portion being cooperatively disposed on the majority positioning thread a threaded end, and forming a smooth pushing end surface, and the pushing end surface is provided with a concave space communicating with the outside, and the concave space is communicated with the end of the spiral feeding channel; The implant body is engaged with the concave space by a screw feeding channel and a pushing portion Pushing the bone powder or filler into the opening of the osteotomy, and pushing the sinus layer at the same time, even if the bone powder or filler is forced into the gap between the opened sinus layer and the upper gum, complete the filling of the bone powder or filler. Work and position the implant.

In a possible embodiment, the ejector end surface is provided with a rounded end portion, and includes an outer edge of the arc at the outer periphery of the end portion of the ejector end face, and a guide inner edge of the arc is disposed in the concave space. Form a safety prevention structure.

In a possible embodiment, the recessed space is configured as a hemispherical or other geometric shape in which the opening communicates to the outside.

In a possible embodiment, the screwing direction of the positioning screw may be set in the same direction or opposite direction to each of the spiral channels to form different sizes of bone powder or filler pushing structure.

10, 10a‧‧‧ implant body

11, 110‧‧‧ positioning thread

12‧‧‧Activity assembly hole

13‧‧‧ base

14, 140‧‧‧ spiral channel

15‧‧‧Pushing Department

151‧‧‧Pushing end face

152‧‧‧ recessed space

153‧‧‧Circular outer edge

154‧‧‧Arc inner guide

20‧‧‧Upper gums

21‧‧‧Sinus

22‧‧‧ sinus layer

30‧‧‧ bone meal

100‧‧‧ sinus layer

101‧‧‧Cortical bones

102‧‧‧Opening

103‧‧‧ bone meal

104‧‧‧ push pin

Figure 1 is a schematic cross-sectional view showing the formation of an opening in a cortical bone by a conventional sinus layer.

Figure 2 shows a schematic diagram of filling the bone powder below the sinus layer in Figure 1.

Figure 3 is a perspective view showing a preferred embodiment of the present invention.

Figure 4 shows a front view of Figure 3.

Fig. 5 is a cross-sectional view showing the third drawing.

Fig. 6 shows a plan view of Fig. 3.

Figure 7 shows a schematic representation of the position of the upper gum and the sinus layer.

Figure 8 shows an enlarged detail of the portion of Figure 7A.

Fig. 9 is a view showing the state of action of the dental implant of the present invention.

Figure 10 shows a perspective view of another possible embodiment of the present invention.

Fig. 11 is a view showing the state of the tooth movement in Fig. 10.

As shown in the third embodiment, in the preferred embodiment, the implant body 10 of the present invention may be made of zirconium dioxide, and has a plurality of positioning screws 11 on the outer circumference and an actuation assembly hole in the inner portion. 12 (refer to FIG. 5), the implant body 10 can be preset with a bottom base portion 13, and a plurality of positioning screws 11 are disposed from the bottom base portion 13 from the bottom to the top, so that the plurality of positioning screw teeth 11 are patterned. The bottom end is gradually narrowed to the upper end to form a dental bed drilling structure. In this embodiment, the positioning screw 11 is a clockwise (forward) screw thread with a fixed pitch in the set direction from the top to the bottom in the figure; however, this is only for convenience of illustration. The positioning screw 11 can of course also be set in another direction, such as a counterclockwise (reverse) thread.

The implant body 10 is provided with one or more (including) or more than the entire positioning screw 11 to intersect the spaced spiral channel 14 of the positioning screw 11, and in this embodiment, includes three The spaced spiral channels 14 are simultaneously extended from top to bottom in the same manner as the positioning threads 11 in this embodiment. The implant body 10 is provided with a reduced diameter pushing portion 15 at an end portion of the plurality of positioning screws 11 (upper end of the illustrated embodiment), and the pushing portion 15 is cooperatively disposed on the plurality of positioning threads The end of the thread of the elbow, and preferably a smooth pushing end surface 151, and the pushing end surface 151 is provided with a recessed space 152 open to the outside, and the recessed space 152 and the The spiral channels 14 are connected at the end.

In order to form a safe push-up and bone powder or filler stacking operation, the pushing end surface 151 is preferably provided as a rounded end portion. In this embodiment, the top surface of the pushing end surface 151 is provided at the outer periphery of the end portion. A circular outer guiding edge 153 is disposed, and an arc inner guiding edge 154 is disposed in the concave space 152.

In a possible embodiment, the recessed space 152 is set to be hemispherical, but this is only for convenience of illustration and is not limited, and any other geometry that can be used for placing bone powder or filler is of course feasible. .

As shown in Fig. 7, in the operation of the implant of the upper gum 20 (the implant 10 of the present invention as shown in the drawing), the implant 10 must be drilled into the upper gum 20 and the end of the implant 10 Arrive at the 21 part of the human sinus and push the sinus layer (mucosa layer) 22 to facilitate filling of the bone powder. In the present invention, after the dentist fills the bone powder 30 into the opening drilled by the bone cutting operation in advance, during the entire implant body 10 of the present invention, the predetermined spiral channel 14 and the pushing portion 15 can be passed through. The pushing end surface 151 pushes the bone powder 30 into the concave space 152, and at the same time causes the pushing portion 15 to gradually push away the sinus layer 22, so that the bone powder 30 is forced into between the pushed sinus layer 22 and the upper gums 20 In the gap, the operation of filling the bone powder 30 is completed simultaneously and the implant body 10 is positioned (refer to Fig. 8).

As shown in FIG. 9, in this embodiment, in the implantation process as described above, since each of the spiral channels 14 is disposed in the same direction as the positioning screw 11, The entire implant body 10 is rotated in the direction of the arrow as shown by the arrow. The spiral channel 14 can be used as a bone channel for the upper gums 20 or a part of the bone powder. The sinus layer 22 of the implant patient usually does not need to be filled. This embodiment is applicable when a larger and thicker bone powder or filler layer is incorporated.

Figure 10 shows another possible embodiment of the present invention, the main difference being that the spiral channel 140 is disposed opposite to the positioning screw 110, that is, the positioning screw 110 is also from top to bottom. The clockwise (forward) thread, the spiral channel 140 is spiraled counterclockwise (reverse) from top to bottom. As shown in Fig. 11, when this embodiment is used, when the entire implant body 10a is rotated and implanted in the same direction, all the bone powder and cutting bone chips will be pushed in by the reverse direction of the positioning screw 110. And pushed all in to form a larger number and thicker Implanted bone powder layer, but can be applied to implant patients who must be filled into thicker bone powder layer.

The invention thus forms a brand-new sinus-specific implant body, which can effectively prevent the sinus layer penetration which may be caused during the dental implant surgery, and can simultaneously push in a selectable amount of bone powder or filler and locate the plant. The tooth body, the overall spatial pattern is obviously innovative and has a high degree of industrial use value, and the member has filed an invention patent application according to law.

10‧‧‧ implanted body

11‧‧‧ Positioning thread

13‧‧‧ base

14‧‧‧Spiral channel

15‧‧‧Pushing Department

151‧‧‧Pushing end face

152‧‧‧ recessed space

153‧‧‧Circular outer edge

154‧‧‧Arc inner guide

Claims (6)

A dental implant body for a sinus includes: a base portion; a plurality of positioning screw teeth located on an outer circumference of the implant body, and gradually extending upward from an upper end of the base portion to form a dental bed drilling structure; and several spiral channels Between the plurality of positioning threads, the plurality of positioning teeth are distributed on the periphery of the implant body, and intersecting the plurality of positioning threads at intervals; and a pushing portion is located at the end of the thread of the plurality of positioning teeth And extending upwardly to have a reduced diameter, the top end of the pushing portion has a smooth pushing end surface, and a concave space recessed by the pushing end surface for receiving bone powder or filler, the concave space Communicating with the outside and communicating with the end of the spiral channel, the concave space has a geometry for implanting bone powder or filler; wherein when the implant is implanted, the pushing portion pushes open the sinus layer The bone powder or filler is introduced into the gap between the opened sinus layer and the upper gums; wherein the plurality of spiral channels are used to discharge the cut bone or part of the bone powder during the implantation process. The sinus-specific implant body according to claim 1, wherein the pushing end surface is provided with a rounded end portion, and the rounded end portion comprises an arc outer guide at an outer periphery of the end portion of the pushing end surface. Edges, and a circular inner guide edge is disposed in facing the concave space. The sinus-specific implant body according to the first aspect of the invention, wherein the recessed space is a hemispherical shape in which the opening communicates with the outside. The sinus-specific implant body according to claim 1, wherein the positioning screw is disposed in the same direction as the spiral channel. The sinus-specific implant body according to claim 1, wherein the positioning screw is the same as the The spiral channel is set in the reverse direction. The sinus-specific implant according to claim 1, wherein the positioning screw is gradually reduced in width from the bottom end to the upper end to form the gum drilling structure.