CN202859357U - Full-porcelain false tooth - Google Patents
Full-porcelain false tooth Download PDFInfo
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- CN202859357U CN202859357U CN 201220545236 CN201220545236U CN202859357U CN 202859357 U CN202859357 U CN 202859357U CN 201220545236 CN201220545236 CN 201220545236 CN 201220545236 U CN201220545236 U CN 201220545236U CN 202859357 U CN202859357 U CN 202859357U
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- porcelain
- layer
- enamel coating
- full
- clear layer
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Abstract
The utility model relates to a full-porcelain false tooth which comprises a porcelain layer. The porcelain layer comprises an ivory layer and a transparent layer sequentially from inwards to outwards, wherein the ivory layer comprises a first porcelain layer in contact with gingiva and a second porcelain layer not in contact with the gingiva; and the transparent layer is bonded on the second porcelain layer. During the preparation of the full-porcelain false tooth, due to the poor heat conductivity of porcelain, the contraction of the transparent layer is limited by the ivory layer, so that the tensile stress is generated in the transparent layer; when the full-porcelain false tooth is used, the first porcelain layer in contact with the gingiva is a main concentrated position for bearing the force, so that the transparent layer is bonded on the second porcelain layer not in contact with the gingiva. Therefore, the force bearing of the transparent layer is lightened, i.e. the probability of microcracks of the transparent layer is reduced. As a result, the porcelain cracking probability is reduced.
Description
Technical field
This utility model relates to the recovery technique of oral cavity field, particularly relates to a kind of full porcelain artificial tooth.
Background technology
Along with development and the living standard of technology improves day by day, people more and more pay attention to oral health.Compared to the Metal-porcelain artificial tooth, full porcelain artificial tooth has satisfied popular to comfortable and the pursuit of the beauty.Full porcelain artificial tooth has following advantages: the first, and good biocompatibility is not because conform to metal level, so little to gingival irritation; The second, density and intensity are higher, can satisfy daily requirement of chewing; The 3rd, not affected by ray, because without being preced with in the metal, so when doing CT, X ray, have no significant effect; The 4th, good to the permeability of light, near dermal tooth.But the while, the problem that full porcelain artificial tooth exists easy porcelain to collapse.
The utility model content
Based on this, be necessary for the problem that exists easy porcelain to collapse, a kind of full porcelain artificial tooth is provided.
A kind of full porcelain artificial tooth comprises enamel coating, and described enamel coating outwards comprises dental ivory and clear layer successively, described dental ivory comprises the first enamel coating and the second enamel coating, the part that contacts with gingiva is the first enamel coating, and the part that does not contact with gingiva is the second enamel coating, and described clear layer is attached at described the second enamel coating.
Among embodiment, described the first enamel coating accounts for 1/3 of described dental ivory therein.
Among embodiment, the gross thickness of described enamel coating is 1.2-1.5MM therein.
Among embodiment, the thickness of described clear layer is 0.3MM therein.
Among embodiment, described clear layer is coated with the glaze layer therein.
Among embodiment, described glaze layer is carved with developmental groove therein.
Above-mentioned full porcelain artificial tooth, in manufacturing process, enamel coating needs cooling after Overheating Treatment, because the heat conductivity of porcelain is relatively poor, when the clear layer cooling is shunk, dental ivory and be attached between the clear layer of dental ivory outer surface and can have the larger temperature difference, dental ivory can limit the contraction of clear layer, causes and produces tensile stress in the clear layer; If clear layer is coated on the dental ivory surface fully, and the thickness of clear layer remains unchanged, like this can be because the surface area of clear layer be excessive, thus causing clear layer to hold can't stand the tensile stress of generation and fine fisssure occurs, life-time service collapses porcelain unavoidably.And when using full porcelain artificial tooth, the first enamel coating that contacts with gingiva therefore clear layer is attached at the second enamel coating that does not contact with gingiva, has reduced the stressed of clear layer for main stressed concentrated place, namely reduce the probability of clear layer generation fine fisssure, thereby reduced to collapse the probability of porcelain.
Description of drawings
Fig. 1 is the structural representation of full porcelain tooth.
The specific embodiment
Below in conjunction with drawings and Examples, this utility model is described further.
As shown in Figure 1, a kind of full porcelain artificial tooth 100, comprise enamel coating 110, described enamel coating 110 outwards comprises dental ivory 112 and clear layer 114 successively, described dental ivory 112 comprises the first enamel coating 1122 and the second enamel coating 1124, the part that contacts with gingiva 200 is the first enamel coating 1122, and the part that does not contact with gingiva 200 is the second enamel coating 1124, and described clear layer 114 is attached at described the second enamel coating 1124.
Above-mentioned full porcelain artificial tooth 100, in manufacturing process, enamel coating 110 needs cooling after Overheating Treatment, because the heat conductivity of porcelain is relatively poor, when clear layer 114 coolings are shunk, dental ivory 112 and be attached between the clear layer 114 of dental ivory 112 outer surfaces and can have the larger temperature difference, dental ivory 112 can restriction clear layers 114 contraction, cause clear layer 114 interior generation tensile stresss; If clear layer 114 is coated on dental ivory 112 surfaces fully, and the thickness of clear layer 114 remains unchanged, like this can be because the surface area of clear layer 114 be excessive, thus cause clear layer 114 to hold tensile stress that can't stand generation and fine fisssure occurs, and life-time service collapses porcelain unavoidably.And when using full porcelain artificial tooth 100, the first enamel coating 1122 that contacts with gingiva 200 is main stressed concentrated place, therefore clear layer 114 is attached at the second enamel coating 1124 that does not contact with gingiva, reduced the stressed of clear layer 114, thereby reduced the probability of clear layer 114 generation fine fisssures, namely reduced to collapse the probability of porcelain.
Among embodiment, described the first enamel coating 1122 accounts for 1/3 of described dental ivory 114 therein.If described the first enamel coating 1122 is long, then can cause described full porcelain artificial tooth 100 to embed gingiva 200 excessively dark, when laboratory rodent chow, to gingiva 200 wearing and tearing too much, cause the diseases such as gingivitis, cause human body uncomfortable; If described the first enamel coating 1122 is too short, then can cause dental ivory 114 to expose outside gingiva 200, cause whole full porcelain tooth 100 insecure, have and easily cause the loosening risk that comes off of causing of full porcelain artificial tooth 100.So, the first enamel coating 1122 is set to account for 1/3 of described dental ivory 114, for comparatively reasonably arranging.
Among embodiment, the gross thickness of described enamel coating 110 is 1.2-1.5MM therein.The thickness of enamel coating 110 can affect the generation of porcelain face crack and quantity, size and geometric, enamel coating 110 is crossed the thin or blocked up porcelain face crack quantity that all can make to be increased, when the thickness of enamel coating 100 increases progressively from 0.8MM to 1.5MM, its intensity is increase trend, when the thickness of enamel coating 110 is 1.5MM, the intensity of enamel coating 110 is maximum, and the crackle that this moment, the porcelain surface produced is minimum.When the thickness of enamel coating 110 increased progressively from 1.5MM to 3.5MM, its intensity descended gradually.Therefore get 1.2-1.5MM, be the most rational value.Certainly, be to be preferred values when getting 1.2-1.5MM, the thickness of enamel coating 110 can be got 0.8-1.5MM equally, is not necessary so the gross thickness of described enamel coating 110 is 1.2-1.5MM for reducing to collapse the porcelain probability.
Among embodiment, the thickness of described clear layer 114 is 0.3MM therein.The effect of described clear layer 114 mainly be so that described full porcelain artificial tooth 100 closer to the tooth of human body itself, simultaneously so that full porcelain artificial tooth 100 intensity are larger, longer service life.And 110 blocked up easily causing of enamel coating crack, therefore it is comparatively reasonable that the thickness of clear layer 114 is arranged on 0.3MM.
Among embodiment, described clear layer 114 is coated with glaze layer 120 therein.Such structure is so that full porcelain artificial tooth 100 closer to the tooth of human body itself, so that full porcelain artificial tooth 100 smooth surfaces and hardness are larger, is conducive to prolong the service life of full porcelain artificial tooth 100.It is pointed out that described glaze layer 120 is not necessary for reducing that porcelain collapses the probability.
Among embodiment, described glaze layer 120 is carved with developmental groove therein.Described developmental groove act as the power of biting broken that increases when chewing, chew more abundant.So collapse for reducing porcelain, be not necessary.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to this utility model claim.Should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of this utility model patent should be as the criterion with claims.
Claims (6)
1. full porcelain artificial tooth, comprise enamel coating, it is characterized in that, described enamel coating outwards comprises dental ivory and clear layer successively, described dental ivory comprises the first enamel coating and the second enamel coating, the part that contacts with gingiva is the first enamel coating, and the part that does not contact with gingiva is the second enamel coating, and described clear layer is attached at described the second enamel coating.
2. full porcelain artificial tooth according to claim 1 is characterized in that, described the first enamel coating accounts for 1/3 of described dental ivory.
3. full porcelain artificial tooth according to claim 1 is characterized in that, the gross thickness of described enamel coating is 1.2-1.5MM.
4. full porcelain artificial tooth according to claim 1 is characterized in that, the thickness of described clear layer is 0.3MM.
5. full porcelain artificial tooth according to claim 1 is characterized in that, described clear layer is coated with the glaze layer.
6. full porcelain artificial tooth according to claim 5 is characterized in that, described glaze layer is carved with developmental groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220545236 CN202859357U (en) | 2012-10-16 | 2012-10-16 | Full-porcelain false tooth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220545236 CN202859357U (en) | 2012-10-16 | 2012-10-16 | Full-porcelain false tooth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202859357U true CN202859357U (en) | 2013-04-10 |
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ID=48026124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220545236 Expired - Fee Related CN202859357U (en) | 2012-10-16 | 2012-10-16 | Full-porcelain false tooth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202859357U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105078601A (en) * | 2015-09-15 | 2015-11-25 | 王强 | Novel and beautiful complete-porcelain tooth |
| CN107714210A (en) * | 2017-11-07 | 2018-02-23 | 吉林大学 | A kind of bionical artificial tooth with hierarchy |
-
2012
- 2012-10-16 CN CN 201220545236 patent/CN202859357U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105078601A (en) * | 2015-09-15 | 2015-11-25 | 王强 | Novel and beautiful complete-porcelain tooth |
| CN107714210A (en) * | 2017-11-07 | 2018-02-23 | 吉林大学 | A kind of bionical artificial tooth with hierarchy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20181016 |
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| CF01 | Termination of patent right due to non-payment of annual fee |