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Dental CAD/CAM removable denture layered machinable resin block and preparation method thereof

A removable denture and resin block technology, which is applied in dentistry, dental prosthesis, medical science, etc., can solve the problems of PMMA resin performance limit, inability to meet chewing wear, etc., and achieve the effect of high peel strength

Pending Publication Date: 2022-03-01
上海沪亮生物医药科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the complete dentures made of this resin block are mainly used as temporary dentures, and additional dentures need to be made later for long-term use by patients, mainly due to the limited performance of PMMA resin, which cannot meet the needs of long-term chewing and wear.

Method used

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  • Dental CAD/CAM removable denture layered machinable resin block and preparation method thereof
  • Dental CAD/CAM removable denture layered machinable resin block and preparation method thereof
  • Dental CAD/CAM removable denture layered machinable resin block and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Embodiment 1: a kind of dental resin block, such as figure 1 As shown, it includes a block 1 and a fixed edge 2 for connecting the fixture. The block 1 includes a fixed side, and the fixed side is connected with a fixed edge 2 with a thickness smaller than that of the block 1, and the fixed edge 2 half surrounds the fixed edge of the block 1. On the side, two fixing holes 3 are provided on the fixing edge 2 . The fixing hole 3 is a through hole, and the openings at both ends of the fixing hole 3 are provided with guiding rounded corners. The resin block has an axisymmetric structure, the fixed side 4 is perpendicular to the symmetry axis of the resin block, and the fixing hole 3 is axisymmetric to the symmetry axis of the resin block.

[0045] The side of the block 1 facing the fixed side is a fixed side 4, and the width of the block 1 gradually decreases from the fixed side to the end away from the fixed side. The block 1 includes a first side 5 and a second side 6, a...

Embodiment 2

[0051] A dental CAD / CAM removable denture layered cuttable resin block, including an upper block and a lower block, the upper block is used to carve teeth, the lower block is used to carve gums, and the upper block adopts dental cutting resin, and the lower block is made of base PMMA resin.

[0052] Described dental cutting resin comprises following weight component unit (unit: g):

[0053]

[0054] Described base support PMMA resin comprises following weight component (unit: g):

[0055]

[0056]

[0057] The preparation process is as follows: step 1, pouring dental cutting resin into the cavity of the casting mold to fill part of the cavity;

[0058] Step 2, refrigerating the pouring mold at a low temperature;

[0059] Step 3. After the resin is frozen and solidified, add the base PMMA resin to the casting mold to completely fill the cavity of the casting mold;

[0060] Step 4, and then continue to refrigerate at low temperature until it is frozen and solidified;...

Embodiment 3

[0063] A dental CAD / CAM removable denture layered cuttable resin block, including an upper block and a lower block, the upper block is used to carve teeth, the lower block is used to carve gums, and the upper block adopts dental cutting resin, and the lower block is made of base PMMA resin.

[0064] Described dental cutting resin comprises following weight component unit (unit: g):

[0065]

[0066] Described base support PMMA resin comprises following weight component (unit: g):

[0067]

[0068]

[0069] The preparation process is as follows: step 1, pouring dental cutting resin into the cavity of the casting mold to fill part of the cavity;

[0070] Step 2, refrigerating the pouring mold at a low temperature;

[0071] Step 3. After the resin is frozen and solidified, add the base PMMA resin to the casting mold to completely fill the cavity of the casting mold;

[0072] Step 4, and then continue to refrigerate at low temperature until it is frozen and solidified;...

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Abstract

The invention discloses a dental CAD / CAM removable denture layered machinable resin block, which is characterized in that the dental CAD / CAM removable denture layered machinable resin block comprises an upper layer block and a lower layer block, the upper layer block is used for engraving teeth, the lower layer block is used for engraving gingiva, the upper layer block is made of dental cutting resin, and the lower layer block is made of base plate PMMA resin. The dental cutting resin comprises bisphenol a dimethacrylate, UDMA, PMMA, a solvent, a curing agent, a coupling agent and a filler, through the arrangement, PMMA can be partially dissolved in a Bis-GMA resin matrix, the compatibility with the resin matrix is good, a three-dimensional network structure is formed after photopolymerization, the structural strength is improved, and the performance of a tooth part meets the physical and chemical performance requirements required by false teeth. The invention further discloses a preparation method of the layered machinable resin block for the dental CAD / CAM removable denture.

Description

technical field [0001] The invention relates to the field of denture processing, in particular to a dental CAD / CAM movable denture layered cuttable resin block and a preparation method thereof. Background technique [0002] Dental restoration CAD / CAM technology is the product of the combination of advanced manufacturing technology and stomatology. It is mainly based on standard dental models, supplemented by doctors' diagnosis, and then realizes the rapid digital design and manufacture of restorations. Prosthodontic technology can provide patients with excellent dental restorations in a short period of time. Its advantages lie in saving time, reducing the labor intensity of medical technicians, improving the working environment of medical treatment and laboratory, banning temporary prostheses, making the production of prostheses complete at one time, reducing the number of visits of patients and improving the safety of prostheses. quality. [0003] At present, the Chinese ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F265/06C08F222/14C08K9/04C08K9/06C08K3/36C08K5/5425C08K7/04C08L33/12C08L77/00A61C13/00A61C13/087
CPCC08F265/06C08K9/08C08K9/06C08K3/36C08K5/5425C08K7/04C08L33/12A61C13/087A61C13/0006C08L2205/16C08F222/102C08K9/04C08L77/00
Inventor 王全胜陈震
Owner 上海沪亮生物医药科技有限公司
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