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Preparation method of CAD/CAM personalized resin pre-formed crown and bridge

A prefabricated crown, 1.CAD technology, applied in medical science, dentistry, prosthetics and other directions, can solve the problem of immature immediate restoration technology of prefabricated resin crowns and bridges, saving immediate restoration time, wide application, reducing The effect of infection

Inactive Publication Date: 2016-06-01
杭州口腔医院集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] CAD / CAM digital implant technology has been widely used in clinical dental implantology, but the combination of CAD / CAM technology to prefabricate resin crowns and bridges for immediate restoration is still immature, and it is necessary to design and make personalized implants according to the position of the implant and the patient's condition Prefabricated resin crown and bridge

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Patient Li, female, aged 25 years.

[0026] Step (1), through the oral clinical examination, it was confirmed that Li’s maxillary anterior tooth area 12-22 was missing, and the bone height of patient 12’s edentulous area was analyzed by oral CBCT: 13 mm, width 7 mm, type 2 bone quality, The gingival distance is 5mm, and the gingival thickness is 3mm; the bone height of 22 edentulous area is 12mm, the width is 6mm, and the bone quality is 2, The distance between the gums is 5mm, the thickness of the gums is 3mm, and the distance between the mesial and distal areas of the edentulous area is about 16mm. The position and direction of the remaining maxillary teeth are OK, the teeth are complete, and the occlusion is normal.

[0027] Step (2), according to the patient data obtained in step (1), use the "six-dimensional dental implant design software" on the computer to design a restoration-oriented implant plan, firstly design the 12-22 upper restoration according to the o...

Embodiment 2

[0035] Patient Chen, male, aged 46 years.

[0036] Step (1), through the oral clinical examination, it was confirmed that Chen’s mandibular teeth were all missing, and the bone height of patient 36 in the edentulous area was analyzed by oral CBCT. The gingival distance is 4mm, and the gingival thickness is 2mm; the bone height of 34 edentulous area is 12mm, the width is 7mm, and the bone quality is 2, Gingival distance 5mm, gingival thickness 3mm; 32 edentulous bone height 13mm, width 6mm, type 2 bone, Gingival distance 6mm, gingival thickness 3mm; bone height 13mm, width 6mm in 42 edentulous area, type 2 bone, The gingival distance is 6mm, and the gingival thickness is 3mm; the bone height of 44 edentulous area is 12mm, the width is 7mm, and the bone quality is 2, Gingival distance 5mm, gingival thickness 3mm; bone height 10mm, width 8mm in 46 edentulous area, type 2 bone, Gingival distance 4mm, gingival thickness 2mm. The position and direction of the remaining max...

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Abstract

The invention discloses a preparation method of a CAD / CAM personalized resin pre-formed crown and bridge. According to the method, data are acquired through oral clinical examination and oral CBCT, an implant scheme is designed by six-dimensional tooth implantation design software with repair as guide, implantation data are acquired, and a corresponding repair working model is obtained; a corresponding implantation replacement body is inserted into the repair working model, the position, the direction and the depth of the obtained replacement body and data of remaining teeth within a mouth are scanned with a scanner, a pre-formed crown and bridge module is designed with EXOCAD software according to the pre-designed upper repair body requirement by the combination of patient gingiva thickness, and a gap is reserved for placing a temporary drill base and a screw hole; finally, the CAD / CAM personalized resin pre-formed crown and bridge is obtained through cutting processing and finishing and polishing of a resin disc. According to the method, the immediate repair body can be put on at the same day after operation, modeling is not required in the patient mouth after the operation, the possibility of postoperative infection is reduced compared with the traditional technology, the time is saved, and the discomfort of the patient is effectively reduced.

Description

technical field [0001] The invention belongs to the field of dental implants in stomatology, and in particular relates to a preparation method of a CAD / CAM personalized resin prefabricated crown and bridge. Background technique [0002] In recent years, oral implant restoration has developed rapidly, and immediate restoration technology after implant has become an important research and development direction in recent years. The traditional immediate restoration technology cannot prefabricate and restore the crown and bridge. It is necessary to take the impression of the patient after the operation, which brings a lot of discomfort to the patient. After the model is finished, professional technicians are required to make temporary dentures on the model, which takes a lot of time. In addition, the soft and hard tissue conditions in the edentulous area of ​​patients are different, and the position and direction of implant placement are also different, so there is a greater de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61C8/00
CPCA61C8/0089
Inventor 林海燕张维丹王仁飞
Owner 杭州口腔医院集团有限公司
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