CN2875364Y - Dowel kernel tooth with closed adhesion of neck and root - Google Patents
Dowel kernel tooth with closed adhesion of neck and root Download PDFInfo
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- CN2875364Y CN2875364Y CN 200520046479 CN200520046479U CN2875364Y CN 2875364 Y CN2875364 Y CN 2875364Y CN 200520046479 CN200520046479 CN 200520046479 CN 200520046479 U CN200520046479 U CN 200520046479U CN 2875364 Y CN2875364 Y CN 2875364Y
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Abstract
The utility model relates to a denture used for repairing residual root - a post-core teeth whose neck margin closes with the root surface, which is characterized in that, the traditional post-core teeth which prepares the damaged residual teeth root into two slant intersection root canal mouths for the tongue, the central distant and near middle ridges and post crown are fixed in the middle of the root canal through nailing the cylindrical casting post is changed into the post-core teeth which has the double fixation of the combination of post-core with the root surface by rebates and the combination of root canal and the screws, thus to disperse the pressure after repairing the damaged residual root, with the reduction of pressure to the root surface. Because the outside of the convex shoulder is protected by a blind mortise of post-core, with the double fixation of the post-core and post crown, post nail and root canal, therefore, the utility model has more anti-bite force and is stronger and durable than the traditional post-core teeth, with the high long-term preservation rate, low probability of occurrence of new injuries and complications and easy operation of the installation. The utility model is the significant improvement of relevant post-core teeth which is recorded in the classical textbooks in the prosthodontics field.
Description
Technical field
This utility model relates to a kind of neck edge installed when repairing residual tooth and the post-core tooth of root face driving fit.
Background technology
Two secondary teeth are all arranged everyone all one's life, and tooth in petticoats is " deciduous teeth ", and adult tooth is called " permanent teeth "." permanent teeth " is not eternal in fact, and except that wound disabled, dental caries was the main illness of infringement tooth.It is exactly still remainder residual crown or undesirable root that the final result of dental caries has kind of a situation, though need not all pull out, it influences masticatory function and face, appearance, influences quality of life of people and healthy.Therefore the eurodonticus is comparatively urgent to the reparation hope of dental caries.At present department of stomatology, Hospital to damaged tooth reparation operation be in the undergraduate education textbook of publishing according to the People's Health Publisher " prosthetic dentistry " described in " post and core crown " chapters and sections (reparation of the not mentioned undesirable root of this book) like that: 1. residual crown is excised to the gingival edge district; 2. the root face prepares into words to two inclined-planes, and two inclined-planes intersect far and near median ridge by root canal orifice central authorities of formation; 3. after root Guan Zuogen filled treatment, dowel crown was by hammering into cylindrical casting stake maintenance in the root pipe.But in practical operation, root face two monoclinic phases of this classics are given the bonded reparation tooth of dowel crown cervical region, have 4 deficiencies at least: (1) dowel crown easily produces fulcrum at the dowel crown cervical region of repairing tooth and causes dowel crown to damage under to jaw tooth interlocking; (2) combine just material filling type combination between dowel crown and the root face, rather than the mucosity type combination, this combination easily makes the filler dissolving, thereby produces bacteria breed ground, brings out complication such as gingivitis, secondary dental caries; (3) the simple interior maintenance of root pipe can produce stress to the root pipe under the effect to jaw tooth gmatjpdumamics, root of the tooth jackknifing and dowel crown nail is fractureed, and makes residual tooth that new wound take place again after reparation.(4) make the dowel crown that completes and be subject to root of the tooth gradient factor, influence dowel crown, can not intuitively arrive the bonding process of binding agent in the root pipe with regard to bit port, when too rare, cementation intensity is influenced as binding agent, and binding agent is too during thickness, then can not make dowel crown in place fully, influence the cementation quality.Above-mentioned 4 kinds of situations have influenced the repairing quality and the storage rate at a specified future date of stake nuclear, dowel crown.Its main cause is that existing classical stake nuclear or dowel crown structure are undesirable.Therefore, improve post and core crown structure and with the combination of residual tooth be the task of top priority.
The utility model content
Technical problem to be solved in the utility model is: be the reparation of damaged tooth, design a kind of simple installation, the stress that after repairing residual root canal is produced is little, and the storage rate height at a specified future date of post and core crown is repaired the low post-core tooth of probability that tooth produces complication.
The technical scheme of this utility model technical solution problem is: when repairing residual tooth, improve dowel crown, stake nuclear cervical region and bonded structure of root face and mode, make to have comparatively ideal dual maintenance relation between them.This utility model is the post-core tooth of a kind of neck edge and the driving fit of root face, and it is formed by dowel crown, stake nuclear, dowel pin, root face shoulder driving fit bonding.It is characterized in that described stake nuclear and the bonded neck edge of root face shoulder position are by rebate cavity configuration and dowel pin and the root pipe is bonding or root pipe female thread and the bonded dual maintenance of drive screw.Described dowel crown is made by high-intensity resin material or porcelain, and its shape, size determine that by the disappearance segment space of residual tooth cavity is left in the centre, in order to insert stake nuclear.Described stake nuclear has two kinds of forms: 1. when residual tooth only remains undesirable root, stake nuclear fuses with dowel pin and is cast by stainless steel and other metal materials, this stake nuclear is designed to spill with the junction of dowel pin, becomes dovetail shapes with the root face shoulder that undesirable root grinds, and the profile of stake nuclear is similar to the dowel crown cavity.2. when residual tooth still during the remainder residual crown, can not excise this part residual crown in order to keep from the body tooth as far as possible this moment, and pile up artificial stake nuclear at its exposed parts place with macromolecular material after screwing in drive screw.Described dowel pin stainless steel and other metal materials, and the surface is provided with external screw thread and gold-plated.The diameter of dowel pin, length are by form, the determining positions of the undesirable root after handling.The undesirable root that described face shoulder is residual tooth grinds and forms, and fills processing as root earlier, again with its surface rubbing, and then grinds a convex shoulder, like this can with closely connected combination the in spill tenon chamber of stake nuclear.When residual tooth still remains the part residual crown, must be with root inside pipe wall target drill and screw tap pre-preparation Cheng Genguan female thread.
This utility model is designed to rebate shape structure owing to being the neck edge to stake nuclear and root face binding site.Simultaneously peripheral by stake nuclear or manually pile up stake nuclear and belled dowel crown blind mortise encloses the hoop protection because of the root face shoulder of convex; and the binding agent between dowel crown and stake nuclear, dowel pin and the root pipe and the dual maintenance of drive screw are arranged; tooth after the reparation is disperseed the stress of former residual root of teeth when stressed, and the pressure that the root face is born reduces.So than post-core tooth classical in the existing textbook more anti-bite make a concerted effort, more sturdy and durable, longer service life.And easy to operate when mounted, reduced the generation of new wound and the probability of complication, will be subjected to odontologist and odontopathy patient's welcome.
Description of drawings
Fig. 1 to Fig. 4 is the neck edge and the bonded cutaway view of root face of the post-core tooth of undesirable root tooth making;
Fig. 5 to Fig. 8 is the neck edge and the bonded cutaway view of root face of the post-core tooth of residual crown tooth making;
Each title and labelling among the figure: 1. dowel crown, 2. nuclear, 3. dowel pin, 4. a face shoulder, 5. blind mortise, 6. neck edge, 7. residual crown, 8. artificial stake nuclear, the 9. spiral shell strand in the pipe of piling up.
Vocabulary of terms is explained:
The gingiva of corona-tooth is with top;
Root of the tooth-tooth is implanted the part of gingiva;
Root pipe-root of the tooth and middle inner chamber;
Be exposed at the outer tissue of tooth surface of gingiva after the root face-residual tooth polishes;
Root fills-medical care of tooth undesirable root inner chamber;
A kind of artificial tooth that post-core tooth-single piece of residual tooth of reparation is used;
The head of the metallic framework that stake nuclear-artificial tooth's corona maintenance is used;
The artificial tooth's of dowel crown-be enclosed within stake nuclear outside the shape such as the tooth body of pileum;
Metal threaded nail in dowel pin-insertion root pipe has with stake nuclear one and casts and two kinds of monomers;
The junction of neck edge-dowel crown and root face shoulder.
The specific embodiment
As the embodiment of Fig. 1 to Fig. 4, the post-core tooth sketch map of making when this is the only surplus undesirable root of a kind of residual tooth.The fabrication and installation process is as follows: earlier the undesirable root of gingiva with top polished, fill as root and to handle the back grinds the high convex of 0.8-1.0mm at root face place root face shoulder 4, delivery moulding then, prefabricated pile nuclear 2 (that fuses with dowel pin is a kind of, as Fig. 3) and dowel crown 1.Earlier with stake nuclear 2 and dowel crown 1 binding agent maintenance, again dowel pin 3 is implanted in the root pipes during installation, imposed binding agent equally, also impose binding agent driving fit bonding in the blind mortise 5 of stake this moment nuclear 2 inside and root face shoulder 4 both residing neck edge 6 and form (as Fig. 4).
As the embodiment of Fig. 5 to Fig. 8, this is a sketch map of making post-core tooth when impaired residual tooth still remains the part residual crown.The fabrication and installation process is as follows: the healthy tooth body that as far as possible keeps residual crown 7 cervical regions.After root Guan Zuogen fills processing, prepare root pipe female thread 9 at the root inside pipe wall with fluted drill and screw tap.Selecting size, length suitable monomers drive screw is that dowel pin 3 screws in the root pipe, imposes the binding agent maintenance simultaneously.Partly make artificial accumulation stake nuclear 8 with macromolecular material in drive screw exposed portions serve and residual crown 7 maintenances then, and simultaneously at the root face shoulder 4 that grinds out convex near root face place, the delivery moulding prepares dowel crown 1 then.During installation, the dowel crown 1 of preparation completion is enclosed within on the artificial heap pile extension nuclear 8, in the bottom of dowel crown 1 and root face shoulder 4 both residing neck edge 6, also imposes the binding agent driving fit this moment and bond.
Claims (4)
1. repair a kind of neck edge that residual tooth uses and the post-core tooth of root face driving fit, form by dowel crown (1), stake nuclear (2), dowel pin (3), root face shoulder (4) driving fit bonding, it is characterized in that described stake nuclear (2) and root face shoulder (4)/or dowel crown (1) with artificial pile up stake nuclear (8) bonded neck edge (a 6) position all be provided with the driving fit of rebate cavity configuration and dowel pin (3) bonding with the root pipe/or root pipe female thread (9) in screw in the dual maintenance of drive screw.
2. the post-core tooth of a kind of neck edge as claimed in claim 1 and the driving fit of root face, it is characterized in that described dowel crown (1) is by high-intensity resin material or porcelain making, has spill tenon chamber, an its recess shape and an appearance similar of nuclear (2), dowel crown (1) is enclosed within the outside of stake nuclear (2), and both driving fits are bonding.
3. the post-core tooth of a kind of neck edge as claimed in claim 1 and the driving fit of root face, it is characterized in that described stake nuclear (2) and dowel pin (3) are made of metal and two parts fuse, the bottom of stake nuclear (2) is provided with blind mortise (5), dowel pin (3) is elongated cylinder, its surface is provided with screw thread, and monomer dowel pin (3) screws in root pipe female thread (9) back at the artificial stake nuclear (8) of piling up of its exsertion part preparation.
4. the post-core tooth of a kind of according to claim 1 neck edge and the driving fit of root face, it is characterized in that described face shoulder (4), by undesirable root/or the artificial stake nuclear (8) of piling up grind and form, form neck edge (6) district of a driving fit with the spill tenon chamber of dowel crown (1), at the root inside pipe wall pre-preparation root pipe female thread (9) of undesirable root.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520046479 CN2875364Y (en) | 2005-11-10 | 2005-11-10 | Dowel kernel tooth with closed adhesion of neck and root |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520046479 CN2875364Y (en) | 2005-11-10 | 2005-11-10 | Dowel kernel tooth with closed adhesion of neck and root |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2875364Y true CN2875364Y (en) | 2007-03-07 |
Family
ID=37818608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520046479 Expired - Fee Related CN2875364Y (en) | 2005-11-10 | 2005-11-10 | Dowel kernel tooth with closed adhesion of neck and root |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2875364Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109589176A (en) * | 2018-12-04 | 2019-04-09 | 湖南医药学院 | A kind of model taking method of dentistry tubular pole core |
| CN111920532A (en) * | 2020-09-15 | 2020-11-13 | 浙江大学医学院附属口腔医院 | Embedded pile core for repairing tooth defect and preparation method and application thereof |
| CN113520629A (en) * | 2021-08-31 | 2021-10-22 | 青岛市口腔医院 | Preparation method of neck and shoulder of tooth in full crown restoration process of tooth and special machine needle thereof |
-
2005
- 2005-11-10 CN CN 200520046479 patent/CN2875364Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109589176A (en) * | 2018-12-04 | 2019-04-09 | 湖南医药学院 | A kind of model taking method of dentistry tubular pole core |
| CN111920532A (en) * | 2020-09-15 | 2020-11-13 | 浙江大学医学院附属口腔医院 | Embedded pile core for repairing tooth defect and preparation method and application thereof |
| CN113520629A (en) * | 2021-08-31 | 2021-10-22 | 青岛市口腔医院 | Preparation method of neck and shoulder of tooth in full crown restoration process of tooth and special machine needle thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |