CN101224147A - Prosthesis for repairing upper jaw bone and fabricating method thereof - Google Patents
Prosthesis for repairing upper jaw bone and fabricating method thereof Download PDFInfo
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- CN101224147A CN101224147A CNA2008100305803A CN200810030580A CN101224147A CN 101224147 A CN101224147 A CN 101224147A CN A2008100305803 A CNA2008100305803 A CN A2008100305803A CN 200810030580 A CN200810030580 A CN 200810030580A CN 101224147 A CN101224147 A CN 101224147A
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Abstract
The invention discloses a prosthesis for repairing the maxillary defects and the preparation method thereof, which includes a silicone rubber outer layer which is in line with the maxillary defect region, a cylindrical skin soft tissue expander inner layer is arranged in the silicone rubber outer layer, the cylindrical skin soft tissue expander inner layer is connected with an inflation device which extends to the outside of the silicone rubber outer layer, and corresponding magnetic retainers are arranged on the silicone rubber outer layer and the cylindrical skin soft tissue expander inner layer or the inflation device. The invention is the prosthesis which has better repair retention, convenient wear and is used for repairing the maxillary defects, and the invention is further establishes the preparation method of the prosthesis.
Description
Technical field
The present invention relates to a kind of prosthesis that is used to repair defect of maxilla, the invention still further relates to the preparation method of this prosthesis.
Background technology
Upper jaw bone total surgical resection and upper jaw bone severe trauma be the main diseases that causes defect of maxilla because of, tissue defect grievous injury patient's facial shape and language, function such as swallow, chew.Because postoperative lip BT lacks elasticity, factors such as scar tissue contracture, the reduction of temporomandibular joint mobility, postoperation radiotherapy cause that patient's limitation of mouth opening or schistostoma are dwindled, damaged scope is wide and dark, give getting to wear and causing difficulty of the die that obtains defective region accurately and prosthesis; On the other hand, the maintenance of prosthesis is poor, and result of use is undesirable.For fear of producing above-mentioned complication, there is the scholar to advocate that the same period, surgical operation was rebuild defect of maxilla with soft tissue flap or complex tissue lobe, improve life quality { [1] Zhao Yimin of patient, Liu Baolin, the peace swallow. the functional reparation [J] of full upper jaw bone disappearance. West China stomatology magazine, 1995,13 (4): 251 253.[2] in thumb, Gu Xiaoming, Gong Zhenyu. free ilium adds jaw defect in the antebrachial flap reparation (attached 4 example reports) [J]. practical stomatology magazine, 2001,17 (3): 215 216.[3] Tideman H, Samman N, Cheung LK, et al.Immediate reconstruction following maxillectomy; A newmethod[J] .Int J Oral maxillofac surg 1993 22:221-224.}, find tumor patient postoperative recurrence situation but this method is unfavorable for early stage the observation, and operation is complicated, the compound osseous tissue lobe is difficult to plastotype, operating technology requires high, has a big risk, and increases for distinguishing damage etc.The reparation of defect of maxilla is still based on prosthesis at present.
The method of obtaining the die of defective region adopts individual tray impression method, layering impression method, sectional impression method etc. more.But the accuracy of die is not high, for serious limitation of mouth opening patient and inapplicable; Also can cause and not accommodate misery to the patient.Chen{Chen LH, Tsutsumi S, Iizuka T.A CAD/CAM technique for facial prostheses:a preliminiaryreport[J] .Int J Prosthodont, 1997,10 (5): 467-472.} adopt laser scanner technique obtain the defective region data information more as calculated machine auxiliary counting controlled machine prepare the model of defect.This seminar has set up the method that Spiral CT scan, computer-aided design three-dimensional reconstruction quick shaping method are obtained maxilla coloboma section model, can obtain defective region model accurately.
The prosthesis of defect of maxilla mostly is the hard hollow dummy that the methyl methacrylate plastics are made, and mainly obtains maintenance by the snap ring of design on remaining tooth, can't utilize defective region soft tissue undercut to obtain maintenance; Can utilize no abutment, and the remaining few patient of palatine area, this method difficulty reaches satisfied maintenance.The hard prosthesis is for fear of the soft tissue that damages recessed district, can only dwindle the prosthesis volume, cause mouth and nose chamber bad sealing, cause asophia, the anti-stream of influent stream matter nasal cavity Tan Dezhao. and the effect of hollow obturator justice jaw in defect of maxilla is repaired. clinical stomatology magazine .1996,12 (3): 178-179. Zhan Xin literary composition. defect of maxilla hollow prosthesis repairing effect is analyzed. Beijing stomatology .1998,6 (S:S): 74.}.What research both at home and abroad was more in recent years is that endosteal implant is the prosthesis on maintenance basis, for dummy provides reliable maintenance and effectively support, the efficient recovery oral cavity function can be arranged, pestle mortar formula wherein, the plantation prosthesis of bar cassette attachment maintenance, replaced the maintenance design of traditional prosthesis complexity, reduce weight, retention effect is [Uchida Y better, Goto M, Katsuki T et al.Measurement of the maxilla andzygoma as an aid in installing zygomatic implants[J] .J Oralmaxillofac Surg 2001,59 (10): 1193-1198.bone; Wang Xiaoling, Zhao's iridium people, open ferrum. the plantation of edentulous jaw one side defect of maxilla repair design accurate three-dimensional photoelastic stress analysis (I)---implantation body's number and implant site are to the influence [J] of prosthesis supporting tissue stress distribution. practical stomatology magazine, 2000,16 (4): 314-317.].But this requires patient's defective region to have enough bone amounts to support implantation body, can accurately obtain die.Vertical force is born by implantation body and horizontal maintenance implantation body biomechanics is inconsistent, also can influence the survival rate of implantation body.
Summary of the invention
Technical problem to be solved by this invention provides a kind of maintenance of repairing and better wears the prosthesis that is used to repair defect of maxilla easily with getting.
Second technical problem to be solved by this invention provides the easily manufactured preparation method of this prosthesis.
In order to solve the problems of the technologies described above, the prosthesis that is used to repair defect of maxilla provided by the invention, a silicone rubber skin that adapts to maxilla coloboma section, in described silicone rubber skin, be provided with cylindricality skin tissue expander internal layer, described cylindricality skin tissue expander internal layer is connected with and extends to the outer aerating device of described silicone rubber skin, and described silicone rubber is outer to be provided with corresponding magnetic attachment with described cylindricality skin tissue expander internal layer or described aerating device.
Described magnetic attachment is at the outer field oral cavity of described silicone rubber face one first magnetic attachment to be set, and annular second magnetic attachment is set on described aerating device, is connected with the first magnetic attachment maintenance on the described silicone rubber skin.
The preparation method that is used to repair the prosthesis of defect of maxilla provided by the invention the steps include:
(1), obtains maxilla coloboma section model: concoct alginate impression material by 1: 2 volume ratio with 60% cardiografin liquid and water, wherein a part of impression material is deposited in the pallet, another part pours in the syringe, to press a little in the pallet intake, pushing syringe rapidly under endoscope guiding then, impression material is pressed into defective region from bicker and damaged side nasal cavity, makes defective region be full of impression material; Maxilla coloboma section is carried out Spiral CT scan, and the CT data generate three-dimensional entity model on PC, and the branch interlamellar spacing is 0.1mm again, is finished the preparation of maxilla coloboma section model by rapidform machine;
(2), the outer field preparation of silicone rubber prosthesis: turn over 2 of system defective region Gypsum Fibrosum formers with the defective region model of having set up, get one of them Gypsum Fibrosum former evenly is layered on former with roasting soft two-layer summer grade rde wax flakes inwall, thick about 2～3mm is the outer field thickness of silicone rubber prosthesis; After getting 3: 1 by volume mixings of quartz sand and common gypsum, add water and transfer and mix pasty state, on vibrating machine, import slowly in the former of above-mentioned shop wax disk(-sc), treat the model drying after, with 85～95 ℃ of hot water dewaxs, the preparation of the formpiston of finishing the work; It is mixing with 100 parts of substrate methyl vinyl silicone rubbers, 50 parts of reinforcing agent gas-phase silicas, 0.6 part of constitution controller silazane to press mass ratio, add 2 parts of containing hydrogen silicone oils, an amount of platinum catalyst and inhibitor acetylene alcohol, after mixing half an hour, elastomeric compound is pressed in the defective region former, the formpiston of will working is put into former, recontour, dress box heat treatment, putting temperature is 1～1.5h in 110～120 ℃ of baking boxs, open box after the cooling, finishing silicone rubber is finished the outer field preparation of silicone rubber of prosthesis, at outer field oral cavity face a magnetic attachment is set;
(3), the preparation of silicone rubber internal layer: adopting volume is that the cylindricality skin tissue expander of 150～200ml is as cylindricality skin tissue expander internal layer, cylindricality skin tissue expander internal layer (2) is connected with and extends to the outer aerating device of silicone rubber skin, on aerating device,, be connected with the outer maintenance of silicone rubber by putting annular magnetic attachment.
That adopts technique scheme is used to prosthesis of repairing defect of maxilla and preparation method thereof, reparation exists that the delivery accuracy is not high, maintenance is relatively poor, get shortcomings such as wearing inconvenience at present defect of maxilla prosthesis, the present invention adopts Spiral CT scan, computer-aided design three-dimensional reconstruction quick shaping method to obtain maxilla coloboma section model accurately, adopts high temperature vulcanized method to prepare the skin of medical grade silicon rubber inflated type prosthesis by model.Internal layer is the skin tissue expander of improvement, and its inflated type device utilizes magnetic attachment to be connected with outer.The soft high resilience of inflated type silicone rubber prosthesis matter is convenient to prosthesis and is got and wear, after the capsula interna inflation, can fully recover the shape of external capsule, utilize soft tissue undercut, obtain good maintenance, and in light weight, solve the maintenance of defect of maxilla companion limitation of mouth opening patient prosthesis and got a difficult problem of wearing.
The advantage and the good effect of invention
(1) model that utilizes Spiral CT scan and computer-aided design Digit Control Machine Tool to prepare defective region can solve a defect of maxilla companion limitation of mouth opening patient delivery difficult problem.
(2) medical grade silicon rubber prosthesis histocompatibility is good, and the soft high resilience of matter can enter soft tissue undercut, and in light weight, can obtain good maintenance, and the inflated type device helps getting to be worn.The invention solves the defect of maxilla prosthesis repair maintenance relatively poor with get a difficult problem of wearing inconvenience, set up the method that defect of maxilla companion limitation of mouth opening patient prosthesis is repaired.
Description of drawings
Accompanying drawing is a structural representation of the present invention.
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
Referring to accompanying drawing, in silicone rubber skin 1, be provided with cylindricality skin tissue expander internal layer 2, cylindricality skin tissue expander internal layer 2 is connected with the aerating device 4 that extends to outside the silicone rubber outer 1, at the oral cavity of silicone rubber skin 1 face one first magnetic attachment 3 is set, annular second magnetic attachment 4 is set on aerating device 5, is connected with outer 1 first magnetic attachment, 3 maintenances of silicone rubber.
Be used to repair the preparation method of the prosthesis of defect of maxilla:
(1) obtain maxilla coloboma section model: concoct alginate impression material with 60% cardiografin liquid and water by 1: 2 volume ratio, wherein a part of impression material is deposited in the pallet, and another part pours in the syringe, will press a little in the pallet intake; Rapid pushing syringe under endoscope's guiding is pressed into defective region with impression material from bicker and Ipsilateral nasal cavity then, makes defective region be full of impression material; Maxilla coloboma section is carried out Spiral CT scan, the condition of scanning: 130kV, 135mA, 1.0s, bed thickness 2.0mm, pitch 1.5mm, matrix 512 * 512, window width 4000, window position 700; The CT scan data transfer on the PC after the Magics software processes from the CT work station, store with reference format (Dicom form) imprinting, the CT data are used Mimics (Materialise NV on PC, Leuven-Belgium) software generates three-dimensional entity model, again the branch interlamellar spacing is 0.1mm, can closely bond to guarantee each layer rapid shaping resin; Prepare to finish the profile editor of charges and the support setting of molding on the software HRP by the incidental rapid prototyping data of HRP-IIB rapidform machine, just form the RP item file afterwards, export the required processed file .par of rapid prototyping at last.System of processing parameter: bed thickness 0.1mm; Process velocity 2000mm/s; Laser power: 50W; Spot diameter 0.1mm; Temperature: 95 ℃; Moulding material: thermoplastic resin coated paper.Finish the preparation of maxilla coloboma section model by the HRP-IIB rapidform machine;
(2), the preparation of silicone rubber skin 1: turn over 2 of system defective region Gypsum Fibrosum formers with the defective region model of having set up; Get one of them Gypsum Fibrosum former with baking the inwall that soft two-layer summer grade rde wax flakes evenly is layered on former, thick about 2～3mm is the outer field thickness of silicone rubber prosthesis; After getting 3: 1 by volume mixings of quartz sand and common gypsum, add water and transfer and mix pasty state, on vibrating machine, import slowly in the former of above-mentioned shop wax disk(-sc), treat the model drying after, with 90 ℃ of left and right sides hot water dewaxs, the preparation of the formpiston of finishing the work; It is mixing with 100 parts of substrate methyl vinyl silicone rubbers, 50 parts of reinforcing agent gas-phase silicas, 0.6 part of constitution controller silazane to press mass ratio, add 2 parts of containing hydrogen silicone oils, an amount of platinum catalyst and inhibitor acetylene alcohol, after mixing half an hour, elastomeric compound is pressed in the defective region former, the formpiston of will working is put into former, recontour, dress box heat treatment is put temperature and is roasting 1～1.5h in 110～120 ℃ the baking box.Open box after the cooling, finishing silicone rubber is finished the preparation of the silicone rubber skin 1 of prosthesis, at outer field oral cavity face one first magnetic attachment 3 is set;
(3), the preparation of silicone rubber internal layer: adopting volume is that the cylindricality skin tissue expander of 150～200ml is as cylindricality skin tissue expander internal layer 2, cylindricality skin tissue expander internal layer 2 is connected with the aerating device 5 that extends to outside the silicone rubber outer 1, on aerating device 4, by putting annular second magnetic attachment 4, be connected with first magnetic attachment, 3 maintenances on the silicone rubber skin 1.
Claims (3)
1. prosthesis that is used to repair defect of maxilla, it is characterized in that: a silicone rubber skin (1) that adapts to maxilla coloboma section, in described silicone rubber skin (1), be provided with cylindricality skin tissue expander internal layer (2), described cylindricality skin tissue expander internal layer (2) is connected with and extends to the outer aerating device (5) of described silicone rubber skin (1), and described silicone rubber skin (1) is provided with corresponding magnetic attachment with described cylindricality skin tissue expander internal layer (2) or described aerating device (5).
2. the prosthesis that is used to repair defect of maxilla according to claim 1, it is characterized in that: described magnetic attachment is that the oral cavity face at described silicone rubber skin (1) is provided with one first magnetic attachment (3), annular second magnetic attachment (4) is set on described aerating device (5), is connected with first magnetic attachment (3) maintenance on the described silicone rubber skin (1).
3. the described method that is used to repair the prosthesis of defect of maxilla of preparation claim 1 is characterized in that: comprise following the steps include:
(1), obtains maxilla coloboma section model: concoct alginate impression material by 1: 2 volume ratio with 60% cardiografin liquid and water, wherein a part of impression material is deposited in the pallet, another part pours in the syringe, to press a little in the pallet intake, pushing syringe rapidly under endoscope guiding then, impression material is pressed into defective region from bicker and damaged side nasal cavity, makes defective region be full of impression material; Maxilla coloboma section is carried out Spiral CT scan, and the CT data generate three-dimensional entity model on PC, and the branch interlamellar spacing is 0.1mm again, is finished the preparation of maxilla coloboma section model by rapidform machine;
(2), the outer field preparation of silicone rubber: turn over 2 of system defective region Gypsum Fibrosum formers with the defective region model of having set up, get one of them Gypsum Fibrosum former evenly is layered on former with roasting soft two-layer summer grade rde wax flakes inwall, thick about 2～3mm is the outer field thickness of silicone rubber prosthesis; After getting 3: 1 by volume mixings of quartz sand and common gypsum, add water and transfer and mix pasty state, on vibrating machine, import slowly in the former of above-mentioned shop wax disk(-sc), treat the model drying after, with 85～95 ℃ of hot water dewaxs, the preparation of the formpiston of finishing the work; It is mixing with 100 parts of substrate methyl vinyl silicone rubbers, 50 parts of reinforcing agent gas-phase silicas, 0.6 part of constitution controller silazane to press mass ratio, add 2 parts of containing hydrogen silicone oils, an amount of platinum catalyst and inhibitor acetylene alcohol, after mixing half an hour, elastomeric compound is pressed in the defective region former, the formpiston of will working is put into former, recontour, dress box heat treatment, putting temperature is 1～1.5h in 110～120 ℃ of baking boxs, open box after the cooling, finishing silicone rubber is finished the preparation of the silicone rubber skin (1) of prosthesis, at outer field oral cavity face a magnetic attachment is set;
(3), the preparation of silicone rubber internal layer: adopting volume is that the cylindricality skin tissue expander of 150～200ml is as cylindricality skin tissue expander internal layer (2), cylindricality skin tissue expander internal layer (2) is connected with and extends to the outer aerating device (4) of silicone rubber skin (1), go up by putting annular magnetic attachment at aerating device (4), be connected with the outer maintenance of silicone rubber.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2008100305803A CN100571662C (en) | 2008-02-01 | 2008-02-01 | A kind of prosthesis that is used to repair defect of maxilla |
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| CNB2008100305803A CN100571662C (en) | 2008-02-01 | 2008-02-01 | A kind of prosthesis that is used to repair defect of maxilla |
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| CN101224147A true CN101224147A (en) | 2008-07-23 |
| CN100571662C CN100571662C (en) | 2009-12-23 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102920534A (en) * | 2012-11-07 | 2013-02-13 | 上海交通大学医学院附属第九人民医院 | Production method of personalized obturator |
| CN105411720A (en) * | 2016-01-05 | 2016-03-23 | 金艺鹏 | Manufacturing method for canine dental crown |
| CN107334544A (en) * | 2017-02-13 | 2017-11-10 | 上海威宁整形制品有限公司 | A kind of method for the expander for meeting biomethanics using the customization of laser scanning, finite element analysis and 3D printing technique |
| CN110215315A (en) * | 2019-04-15 | 2019-09-10 | 四川大学 | The production method of self-inflating air bag formula hollow obturators |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3895624A (en) * | 1974-07-18 | 1975-07-22 | Nicholas G Georgiade | Apparatus for use in treatment of the bilateral cleft lip and palate condition in infants |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102920534A (en) * | 2012-11-07 | 2013-02-13 | 上海交通大学医学院附属第九人民医院 | Production method of personalized obturator |
| CN105411720A (en) * | 2016-01-05 | 2016-03-23 | 金艺鹏 | Manufacturing method for canine dental crown |
| CN107334544A (en) * | 2017-02-13 | 2017-11-10 | 上海威宁整形制品有限公司 | A kind of method for the expander for meeting biomethanics using the customization of laser scanning, finite element analysis and 3D printing technique |
| CN110215315A (en) * | 2019-04-15 | 2019-09-10 | 四川大学 | The production method of self-inflating air bag formula hollow obturators |
| CN110215315B (en) * | 2019-04-15 | 2021-11-12 | 四川大学 | Method for manufacturing self-inflating air bag type hollow denture |
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| CN100571662C (en) | 2009-12-23 |
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