A kind of design and fabrication method for dentistry implant operation guide plateTechnical field
The present invention relates to technology dentistry implant operation field, it particularly relates to which a kind of dentistry implant operation that is used for is with leadingThe design and fabrication method of plate.
Background technology
The location of operation template of planting body is the instrument generally used in tooth-implanting operation, it, which can conveniently assist a physician, is facingOperation on bed, makes the implant position of gum bone be positioned toward preferable direction with pursuing good fortune and avoiding disater, reduces precipitate in operationParameter.Location of operation template of the prior art is more by doctor according to patient's oral condition self manufacture, and still, doctor is made toThe operation arrived is often inadequate with patient oral cavity compactness with guide plate, and dental drill sleeve is relatively rough, and not only patient is in surgical procedureAccuracy is not high, and influences canine implant success rate of operation.Therefore, how to design to obtain the hand of fitting patient's cavity interiorArt guide plate is the technical problem that those skilled in the art thirst for solving all the time.
The problem of in correlation technique, not yet propose effective solution at present.
The content of the invention
For the above-mentioned technical problem in correlation technique, the present invention proposes a kind of setting for dentistry implant operation guide plateMeter and production method, it is high by the operation guide plate that this method obtains and patient oral cavity compactness, implant operation wind can be reducedDanger, improves the accuracy during corrective surgery, and then improves artificial growth success rate of operation.
To realize above-mentioned technical purpose, the technical proposal of the invention is realized in this way：
A kind of design and fabrication method for dentistry implant operation guide plate, it is characterised in that include the following steps：
S1. patient oral cavity CBCT data are obtained;
S2. entire patient and oral condition are fully assessed;
S3. the tooth at reconstruction patients oral cavity position, bone threedimensional model;
S4. the data obtained according to step 1 formulate corresponding planting scheme, and carry out intensive analysis to selected planting body, reallyDetermine planting body model;
S5. design and the corresponding normalized template of guiding die plate drill bit, patient's tooth that normalized template combination step S3 is rebuildTooth, bone threedimensional model obtain preliminary guide plate model, select the planting body model determined according to step S4 in software, will be preliminaryGuide plate model is processed into the threedimensional model of customized type surgical guide;
S6. according to tooth, the bone threedimensional model at the step S3 patient oral cavity positions rebuild, the customized type hand finally used is determinedThe size of the pilot hole of art guide plate, with reference to the threedimensional model of customized type surgical guide, designs and prints corresponding with pilot holeCustomized type surgical guide, positioning is fixed on the pilot hole of customized type surgical guide with dental drill sleeve.
Further, the tooth at reconstruction patients oral cavity position, the specific method of bone threedimensional model are in the step 3,Patient oral cavity position plaster cast is made, the 3 d scan data of plaster cast is obtained and is matched somebody with somebody with the CBCT data in step S1It is accurate.
Further, the tooth at reconstruction patients oral cavity position, the specific method of bone threedimensional model are in the step 3,Three-dimensional data data are obtained by being scanned in mouth, it is registering with the CBCT data progress in step S1.
Further, the surgical guide thickness is 2.5-3mm.
Further, the material of the surgical guide is resin.
Further, the positioning with the material of drill holder is TC4 or medical stainless steel.
Further, the size of the positioning drill holder is according to the common tooth of patient, labial teeth area, labial teeth area adjacent teeth spacingThe situation of deficiency makes choice.
Beneficial effects of the present invention：Design and fabrication method of the present invention for dentistry implant operation guide plate,Virtual design is carried out using software is planted, 3D printing technique realizes the making of surgical guide, realizes tooth-implanting surgical operation diseaseExample simulation, can not only shorten treatment time, moreover it is possible to improve the accuracy in plantation site and direction, reduce the Waiting time of patientAnd pain.
Design and fabrication method of the present invention for dentistry implant operation guide plate, has considered following aspectInfluence, so as to improve the laminating degree in the operation guide plate and patient oral cavity finally obtained, work well：1. patient oral cavityCBCT data；2. patient oral cavity position tooth, bone threedimensional model；3. planting body carries out intensive analysis；4. the size of planting bodyInformation.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodimentAttached drawing to be used is needed to be briefly described, it should be apparent that, drawings in the following description are only some implementations of the present inventionExample, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawingsObtain other attached drawings.
Fig. 1 is a kind of structure diagram for dentistry implant operation guide plate described in the embodiment of the present invention；
Fig. 2 is the top view of the plantation point casing described in the embodiment of the present invention；
Fig. 3 is the side view of the plantation point casing described in the embodiment of the present invention；
Fig. 4 is the side view of the lateral register casing described in the embodiment of the present invention.
In figure：1. customized type guide plate matrix；2. dental drill sleeve is used in positioning；3. kind of a plant point casing；4. lateral register casing；5.Plantation point casing link slot；6. lateral register casing link slot；7. edge circle；8. gap；9. notch；10. be recessed lines.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, completeSite preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based onEmbodiment in the present invention, those of ordinary skill in the art's all other embodiments obtained, belong to what the present invention protectedScope.
Embodiment one
It is made to according to following steps to operation guide plate
S1. patient oral cavity CBCT is obtained according to the prior art（The abbreviation of Cone beam CT, i.e. conical beam CT）Data;
S2. entire patient and oral condition are fully assessed, it is ensured that patient meets planting conditions;
S3. patient oral cavity position plaster cast is made, the 3 d scan data of plaster cast is obtained, with the CBCT numbers in step S1Registering, tooth, the bone threedimensional model at reconstruction patients oral cavity position according to carrying out;
S4. the data obtained according to step 1 formulate corresponding planting scheme, and carry out intensive analysis to selected planting body, reallyDetermine planting body model;
S5. design and the corresponding normalized template of guiding die plate drill bit, patient's tooth that normalized template combination step S3 is rebuildTooth, bone threedimensional model obtain preliminary guide plate model, select the planting body model determined according to step S4 in software, will be preliminaryGuide plate model is processed into the threedimensional model of customized type surgical guide;
S6. according to tooth, the bone threedimensional model at the step S3 patient oral cavity positions rebuild, the customized type hand finally used is determinedThe size of the pilot hole of art guide plate, with reference to the threedimensional model of customized type surgical guide, designs and prints corresponding with pilot holeCustomized type surgical guide, positioning is fixed on the pilot hole of customized type surgical guide with dental drill sleeve.
Printing operation is resin with the material of guide plate, thickness 2.5mm.
Embodiment two
It is made to according to following steps to operation guide plate
S1. patient oral cavity CBCT data are obtained according to the prior art;
S2. entire patient and oral condition are fully assessed, it is ensured that patient meets planting conditions;
S3. three-dimensional data data are obtained by being scanned in mouth, reconstruction patients oral cavity registering with the CBCT data progress in step S1Tooth, the bone threedimensional model at position;
S4. the data obtained according to step 1 formulate corresponding planting scheme, and carry out intensive analysis to selected planting body, reallyDetermine planting body model;
S5. design and the corresponding normalized template of guiding die plate drill bit, patient's tooth that normalized template combination step S3 is rebuildTooth, bone threedimensional model obtain preliminary guide plate model, select the planting body model determined according to step S4 in software, will be preliminaryGuide plate model is processed into the threedimensional model of customized type surgical guide;
S6. according to tooth, the bone threedimensional model at the step S3 patient oral cavity positions rebuild, the customized type hand finally used is determinedThe size of the pilot hole of art guide plate, with reference to the threedimensional model of customized type surgical guide, designs and prints corresponding with pilot holeCustomized type surgical guide, positioning is fixed on the pilot hole of customized type surgical guide with dental drill sleeve.
Printing operation is resin with the material of guide plate, thickness 3mm.
It is the structure of operation guide plate and the structure diagram of its associated components finally obtained as shown in Fig. 1 ~ 4.
Operation includes customized type guide plate matrix 1 and positioning dental drill sleeve 2, customized type guide plate matrix 1 and patient with guide plateThe perfect fitting of mouth inside points, positioning dental drill sleeve 2 include planting point 3 He of casing from the top of customized type guide plate matrix 1 is perforativeFrom the perforative lateral register casing 4 in 1 side of customized type guide plate matrix.Positioning dental drill sleeve 2 is in customized type guide plate baseThe position perforate performed the operation is needed on body 1, plays the role of the lower brill of guiding.Positioning dental drill sleeve 2 is divided to two classes, first, plantation siteOn, ensure the lower direction bored, i.e. plantation point casing.Second class is used for Edentulous Cases lateral register in operation and uses, i.e. sideInto locating sleeve, with operation tool box, side wall screw is used cooperatively, position of the resting guide in mouth.
In order to make plantation point casing 3 and customized type guide plate matrix 1 preferably be connected cooperation, design makes customized type guide plate matrix1 is equipped with and the matched plantation point casing link slot 5 of the plantation point casing 3.
In order to make other instruments used in surgical procedure have good moving range, design connects plantation point casingAccess slot 5 is equipped with gap 8, and plantation point casing 3 is equipped with and the matched notch 9 of the gap 8.
In order to make lateral register casing 4 and customized type guide plate matrix 1 preferably be connected cooperation, design leads the customized typePlate matrix 1 is equipped with and the matched lateral register casing link slot 6 of the lateral register casing 4.
In order to further make plantation point casing 3 be connected cooperation with customized type guide plate matrix 1, design makes plantation point casing 3Upper and lower ends be respectively provided with an edge circle 7.The just property the blocked guide plate matrix 1 of edge circle 7, it is preferable that edge circle 7 blocks kindPlant the lower edges of point casing link slot 5.
In order to make lateral register casing 4 and customized type guide plate matrix 1, design is equipped with the outer wall of lateral register casing 4Be recessed lines 10, to increase the frictional force between lateral register casing 4 and customized type guide plate matrix 1, it is preferable that depression lines 10Increase the frictional force between lateral register casing 4 and lateral register casing link slot 6.
Plantation point casing link slot 5 and lateral register casing link slot 6 are the pilot hole described in step S6.
Plantation point casing 3 has three models according to the difference of position, is respectively used to common tooth, labial teeth area, labial teeth area adjacent teethThe situation of spacing deficiency, specific size are 5.2 mm × 4.0mm respectively（D×H）、3.5mm× 4.0mm（D×H）、2.0mm×4.0mm（D×H）.
Lateral register casing 4 has a kind of model, is used cooperatively with side wall screw in operation tool box, resting guide is in mouthPosition, specific size is 1.9 mm × 5.0mm（D×H）.
Plantation point casing 3 and 4 material of lateral register casing are TC4 or medical stainless steel.
Implant operation is carried out with guide plate using the operation that method of the present invention manufactures, according to patient feedback, painPain degree is decreased obviously, and the average used time of performing the operation shortens 1/3rd and arrives half or so, works well.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present inventionWith within principle, any modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention god.