WO2011162730A2

WO2011162730A2 - How we put dental implant without surgical operator (flapsess)

Info

Publication number: WO2011162730A2
Application number: PCT/SY2010/000010
Authority: WO
Inventors: Haydar Imad
Original assignee: Haydar Imad
Priority date: 2010-06-23
Filing date: 2010-07-22
Publication date: 2011-12-29
Also published as: WO2011162730A3

Abstract

We put the pins in the gypsum cast in the same places and directions which are expected to be planted (fig 11 ). We make the acrylic radiographic method on it. The set is put in the Mouth (fig 14) and section filmed 3D. The photo is studied by computer through Ezimplant-Dental3D program. We modify the entrances and axises if necessary and take the dimensions and film the result by the printer (fig 15, 16) The entrances and axises of the implant are modified in accordance with the study. We decide the new place on the gypsum cast (fig 17). We drill the place of the new implants on the same old Gypsum by using "Dr. lmad Haidar" apparatus after putting the conductor in the place of the old pin (fig 22) to connect the information, and making the surgical director, (fig 28)

Description

How we put dental implant without surgical

operator (f lapSess)

The Technical Situation of the Invention

Many dentists make sectional picture of the bone in the place of implantation in order to take an initial look at the dental implant. By that we avoid any unexpected condition during the surgical work. It is very rarely that the dentist make implantation without surgical flap and raising slice, scientists made surgical guide which is very expensive and complicated by means of computer.

This invention provides information which if the doctor applies precisely, it can help him to make implantation without making tear or slice, we can do that if there is a suitable alveoli. The cost of this procedure is very little. Every dentist, can make this implantation without using expensive computer sets and can accomplish incredible and incomparable achievements.

The Technical Description of The Invention

In the past it was depended on metallic balls and the Panoramic photographs or ross sectional photographs, but it wasn't a useful way till we know the percentage of the bone enlargement and after we measure the real bone depending on the percentage of the radiography enlargement of the metallic ball. Our invention depends on metallic pins with a definite diameter, these pins are put in the assumed point (place) and direction of the implants in the gypsum cast of the patient. This will be done after a good study of the points and the expected direction of the entering implant.

The modern equipments for performing this idea:

A small ready drill which on it we can put these elements:

1. A metallic plate which is placed at the top and can rotate at the bottom and there is a screw for side fixing to hold the radiography photograph which was drawn on it, the axis of the pin and the axis of implant. (figure 1-1 , 3 , 4)

2. The holder of the gypsum cast which has the ability of changing positions by three methods: rotation, front - back inclination and sideways inclination. Every change of the position is still fixed whenever there is interwoven with the other positions. (fig. 6-2, 6-3, 6-4)

3. There is a metal plate which, is fixed above the holder of the gypsum cast. On the metal plate there are four metal cotters which are entering within the gypsum cast in order to fix it (fig 6-1), on the other side of the metallic plate, there is a nut to join it to the holder where there is a round dentate piece under it on the same screw in order to fix the gypsum holder on the wanted rotation position (fig 6-2).

4. Under the controlling dentated area there are two controlling joints which are prepared with two screws with possibility of calibrating them by special screwdriver (fig 6-6): the upper screw controls the bending right - left move (fig 6-3) and the bottom screw controls the bending front - back move (fig 6-4). The bottom side of the base of the holder has two oriented routes which are crossed in the center and they allow the holder to move to the left - right direction on the metallic plate, with two positions each one is completely crossed with the other one. (fig 6-5)

5. The gypsum holder should be put on a metallic plate which is prepared with the base of the drill to slide in front - back oriented move. The metallic plate is also prepared on its upper side with a metal piece that helps the holder to slide in left - right oriented move, both moves can be measured precisely, (fig 7-1 , 7-2, 7-3).

6. The apparatus is prepared with the required light for the operation in according with. It has also on/off button, (fig 2) Radiographic method:

It can be made as follows:

1. Pin point the place of implants precisely after fixing the two casts with the wax bite on the articulator and mark the entering place of the implants, (fig 8)

2. Fix the cast on the gypsum cast holder after drilling it from the bottom small holes which should be combatable with the cotters of the casts holder by the help of the metallic plate which is especially prepared for the oriented drilling, (fig 9).

3. (1.1 m.m) quill is fixed in the drill, which is the diameter of the used pins.

4. Before fixing the gypsum cast by special dentate screw, rotate it to its correct position. Then we fix the gypsum cast in the correct front - back position. After that, fix the gypsum cast in the correct left

- right position. Each position has its special screw, (fig 6, 10)

5. After being sure of binding and fixing the cast of the cast holder position, we drill and then move from one hole to another by sliding the cast holder with the metallic plate forward and backward. We do that in order to have exact parallel holes in the exact require places, (fig 10)

6. If there is a need to implant in more than one side of the mouth we should change the angles of the holder whereas we unify the angle of every implant group that are found together in the same side (right-left-or front).

7. Take off the gypsum cast and paint it with Vaseline and then spit pins in their^'places (fig 1 1 ) then make prosthetics of Acrylate surrounding the pins and cover most of neighboring teeth whereas it gives the maximum fixity in the mouth with the ability to loose them (fig 1 )and that is the radiographic guide.(fig 12, 13)

8. After the Acrylate hardens, take off the pins that are dipped in Acrylate with nearly 1.cm. distance and their impression is outside the Acrylate to be able to be taken off.

9. Take off the Acrylate but remain the gypsum cast as possible as we can.

10. Implant the pins in their points with Acrylate from the inside of the set another time, but they mustn't be eminent from Acrylate to give us the level of gingival in the radiographic photo, (fig 13)

1 1. It isjiot bad that the pins are eminent a little inside the mouth to give them the longest length and you can cut the increased length and then coat the eminent part of pins with red wax to prevent making any harm in the mouth. (fig 12)

12. The set is put in the mouth whereas it must be steady and it makes its position on the gypsum cast completely, (fig 14)

13. You can use powder or a fixing ointment for the whole jaw Edentulous.

14. Accomplish the digital cross sectional photograph and the radiograph guide is in the mouth. -Radiographic study

The radiographic study is done by the computer in the clinic through the program

(Ezimplant-Dental3D) whereas we make a cut bone at the point of pin exactly we make a precise identification with both Sagittal and Coronal projection with the pin, by this enlargement of the cross section for the bone section as follows:

" 1. Is the side of the best entering implants occluded on the axis of the entering pin and if it isn't

occluded you must make new axis on the photo by using a measuring device, and you must draw the length of the bone and from it the axis of entering.

If the place of entering the pin wasn't identical as required you must make measure which explain the distance of entering pin with the required entrance. After making a maximum zooming for the photo.

(fig 17)

2. You must measure the width and length of the bone to know the expected dimensions of the implant.

3. You must measure the thickness of bone to know the best method of preparing according to the thickness.

4. Finally, the result is on the computer, we have four squares on the paper On the first square you find the above mentioned study. On the second square you find Sagittal cross section for every pin and its place from other pins. The third square explains the place of the cross section according to the skull. The fourth square is a top projection for the place of the cross section.

5. All these cross sections are fortified with the pin places which lead that there wasn't any mistake happened in identifying the place of any implant, (fig 15, 16) or mixing up between the implants.

6. You take a photo by the colored printer of the computer, for every special study for every single implant.

7. You must study all the photos taken by the printer for all implant group that are in one side and must be sure of the side of entering.

You may change the axis of entering for this side or another by drawing it on the photo and give the same angle according to the original pin axis and must study the neighboring implants by using a protractor and by knowing the dimension of the new entrance (that happens by changing the axis)and its dimension from the original entrance as mentioned when you study the photo in the program (Ezimplant -Dental 3D ).

So that you can study every implant group with the others right / left / front. Surgical Guide:

The number of the implant is written beside the photo of the wanted implant Cross-section then we fold the paper on itself till the photo becomes only on the front whereas to fix it on the specialized set to make surgical guide according to (fig 18). Then fix with rubber by two sides guide loose the screw of the plate which holds the paper and rotate it till the axis of the entering assumed implant occludes with the axis of the drill quill that is fixed on the drill (fig 19).

We fix the gypsum cast on its holder and we set the guided long pin in the prepared hole in the gypsum cast, then we calibrate the controlling tools on the gypsum cast consequently until we reach to parallelism and identification, where as the guided pin axis becomes identical with the gypsum cast on the radiographic photo which is fixed on the drill whereas the position of the cast is identical to the position of radiographic cross-section that is fixed on the drill to the gypsum cast another time, (fig 22)

In the situation of performing a change in the entering axis, we will have two axises on the photo. The first axis is the original pin axis. The second one is the assumed changed axis. Here you must make an identification between the changed implant axis on photo and the axis of the drill quill.

Then we identify the pin axis on photo with the axis of dipped guided pin in gypsum. By this way we have conveyed the entering angle change as required according to the( fig 22) when we accomplish the new hole, this must be within the new entering point that was changed according to the above mentioned radiographic photo study (fig 20, 21 ).

We can often unify the axises of implants even if we change the entrance a little bit, and in this condition we convey the holder of the cast, by sliding it with the metallic plate from one hole to another, and all have the same entering axis. All implants will be parallel for every side of the mouth.

We paint the gypsum with Vaseline after filling the fixed places with wax then we put the drill quills (1.5 mm ) in the wanted prepared points ( places )(fig 23) then we coat these quills with the guided cylinder(the length of the cylinder is 8m. m) they are crenate from outside for fixing according to the (fig 24)

Note: Every guided cylinder is consisted of two pieces: the first one is the internal piece ( it has internal diameter 1.5mm. and external diameter 2.8mm) and this internal piece has an edge. The second one is the external piece (it has internal diameter 2.8mm and external diameter 4mm) (fig. 27)

Then we set acrylic prosthesis above the metal guides and by that we will have the guide plate for the surgical work ( fig 26) which we take off after taking off the quills of the drill, (fig 28) This surgical director should be tested in the mouth before making the surgery. And it must be tried in the mouth to be sure-of its fixity and to take its required place precisely and without doing this we can't make use of it.

Claims

The claims must be protected: . The new invention is distinguished by the following: Using the gypsum cast precisely as a memory holder of the places of the probable implants, (fig 1 1 ) Using the gypsum cast precisely as a memory holder of the axises of the probable implants, (fig 1 1 ) Using the metal pins which are inserted into the gypsum from one side, also entered into the Acrylic Radiographic Guide from the other side, (fig 12, 13) Using the Acrylic Radiographic guide that holds the directed pins which are firstly getting from the gypsum cast, (fig 12, 13) The probability of reaching to the point of the entrance of the pin and its direction (it is the assumed entrance of the implants) this will be done through the radiographic study by Ezimplant-3D as the following steps: a) Defining the entrance pointed of the pin in the horizontal "Axial" projection, (fig 29 - 1 ) b) Calibrating the photo according to the Sagittal projection to be identical with the axis of the pin. (fig 29 - 3) c) Calibrating the photo according to the Coronal projection to be identical with the axis of the pin. (fig 29 - 2) d) After achieving the above steps, we reach to the direction and entrance point of the pin (it is the direction and entrance point of the assumed implants), (fig 29) The probability of the reaching to the final calibrating photo of the entrance and direction of the pin by means of computer and changing the place and direction of the entrance by both Sagittal and Coronal directions and measuring the distance between this entrance and the entrance of the pin by using (Ezimplant- 3D program). After enough zooming-in of the photo, we measure precisely parts of one tenth of millimeter and draw the new direction and entrance of the implant on the photo which is drawn by the printer, (fig 17) Using "Dr. Imad Haidar" assisting apparatus to transfer the final result of the study by putting the printed photo on it. Then we make theoretical matching between the photo and the long inserted pin into the gypsum in the assumed place of the implant. Then we make a new hole with a new axis if we find that change is necessary. 2. According to the claims (1 - 7) Imad Haidar's apparatus which is consisted of special drill which is distinguished by the following parts that are applied on it:

1. A special plate that holds the radiographic photo in the apparatus. This plate is fixed in the middle of its upper side and there is a possibility to slide it in a rotating movement around the center.

The plate has a side fixing screw which makes it stable on the wanted position (fig 1 -6, 3) after calibrating and making the axis of the quill of the drill, (fig 19)

2. Gypsum holder cast has many characteristics which we are going to describe its parts starting from the upper to the bottom side: a) A plate holds on its four corners, four cotters entering into a removable thin plate above it. (fig 6 - 1 ) This removable plate can be used by passing a drill from its holes after putting it in the bottom of the gypsum cast to make matching holes, (fig 5, 9)

b) A round calibrating screw which is dentated, and it is located in the bottom of the holding plate of the gypsum cast. We can make use of it as follows: After fixing the holder of the main gypsum cast on the oriented plate by the apparatus, we rotate the gypsum cast till we make the studied implants in the same side on one front-back track (back implants) and right-left track (frontal implants). Then we fix the position by tightening the mentioned dentated screw, (fig 6 - 2)

c) Side screw for front-back calibrating of the gypsum cast. After putting the long pin into the gypsum in the assumed entrance of the implants, we loose the screw and calibrate the position of the gypsum cast on its holder until we make the pin parallel with the quill of the drill when we look at it from any of the two sides, (fig 6 - 4)

d) Frontal screw for side calibrating of the gypsum cast and by loosing it we incline the gypsum cast to the right-left until we make it parallel with the wanted entrance direction which is drawn on the radiographic photo, (fig 6 - 3)

e) The base of the gypsum cast holder has two crossed routes that help us moving from one position to the crossed position with it in an identical way with the photo of the Sagittal axis crossed with the Coronal axis in the same photo, (fig 6 - 5)

3. The holding plate of the gypsum cast holder which has the following

characteristics:

a) It can move in an oriented front-back movement that can be digitally

measured, (fig 7 - 2)

b) It can give the gypsum cast holder the possibility of side moving. This movement can be also digitally measured, (fig 7 - 1 , 7 - 3)