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Pre-positioning device and method of use for crown opening on occlusal surface of implant restoration

A technology of pre-positioning device and positioning device, which is applied in the fields of dental implants, dentistry, and dental prosthetics. It can solve the problems of central bolt wear, improper opening direction, and irreparable problems, so as to ensure the accuracy of measurement, reliable placement, and structure. simple effect

Active Publication Date: 2019-08-09
西安交通大学口腔医院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The final restoration of oral implants is often done with bonded and retained crowns. However, because there is no positioning device on the crown surface, the crown is damaged in the later stage. When it needs to be removed and repaired, it cannot be accurately positioned, resulting in deviation of the opening, or even inappropriate opening direction. , go too deep, causing the central bolt of the implant to wear out, and eventually an irreparable situation occurs, leading to implant extraction, or increasing the financial burden and avoidable trauma of the patient

Method used

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  • Pre-positioning device and method of use for crown opening on occlusal surface of implant restoration
  • Pre-positioning device and method of use for crown opening on occlusal surface of implant restoration
  • Pre-positioning device and method of use for crown opening on occlusal surface of implant restoration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A pre-positioning device for crown opening on the occlusal surface of an implant restoration, comprising an upper positioning device and a lower positioning device, such as figure 2 As shown, the upper positioning device includes an upper positioning rod 1, a rubber sleeve 2, an upper beam 3, a support rod 4, a fixed connecting rod 5 and a scale line 6, and the upper positioning rod 1 and the supporting rod 4 are respectively fixed on the upper beam 3 below, and respectively located at the two ends of the upper beam 3; the top of the lower end of the positioning rod 1 is covered with a rubber sleeve 2; the lower end of the support rod 4 is fixedly connected with a fixed connecting rod 5, and a circle of scale lines 6 is arranged on the fixed connecting rod 5; Figure 4 As shown, the lower positioning device includes a lower positioning rod 8, a locking device 9, a lower beam 10, a locking handwheel 11, an observation window 12, a scale 13 and a support sleeve 14, and th...

Embodiment 2

[0024] On the basis of Example 1, such as Figure 5 As shown, the locking device 9 includes a fixed cylinder 16 with a central hole and a fastening bolt 17, and the fastening bolt 17 is threaded in the longitudinal through hole of the fixed cylinder 16 with a central hole.

[0025] The supporting rod 4 and the fixed connecting rod 5 are integrally structured, and the cross section of the fixed connecting rod 5 is a rectangular structure with symmetrical arcs at both ends; the inner shape of the supporting sleeve 14 is consistent with the fixed connecting rod 5 . (See Figure 5 )

[0026] Such as Figure 4 As shown, the observation window 12 is a vertical strip-shaped slot.

[0027] Such as image 3 As shown, the upper positioning rod 1 and the supporting rod 4 are respectively fixed on the two ends of the upper beam 3 through the second through hole 15 and the first through hole 7, and the upper positioning rod 1 and the supporting rod 4 are connected with the second throu...

Embodiment 3

[0033] On the basis of embodiment 2, the diameter of the upper positioning rod 1 is 1.2 mm, and the length is 20 mm; the diameter of the lower positioning rod 8 is 1.2 mm, and the length is 15 mm; the length of the supporting sleeve is 40 mm; The length of the fixed connecting rod is 39mm. Two observation windows 12 can be provided, which are symmetrically distributed on the support sleeve for convenient observation.

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Abstract

The invention discloses a pre-positioning device used for crown-breaking and trepanning for an oeclusal of an implant prosthesis and a using method. The pre-positioning device comprises an upper positioning device and a lower positioning device. The upper positioning device comprises an upper positioning rod, a rubber sleeve, an upper cross beam, a supporting rod, a fixing connecting rod and a scale line, and the lower positioning device comprises a lower positioning rod, a locking device, a lower cross beam, a locking hand wheel, an observation window, a scale ruler and a supporting sleeve; the fixing connecting rod of the upper positioning device is fixed in the supporting sleeve through the locking hand wheel, and the upper positioning rod of the upper positioning device is in up-down correspondence with the lower positioning rod of the lower positioning device; the scale line on the fixing connecting rod is in correspondence with the observation window on the supporting sleeve. According to the pre-positioning device used for crown-breaking and trepanning for the oeclusal of the implant prosthesis and the using method, the position of a hole which needs to be opened on maxillofacial can be determined precisely, the depth which needs to be opened is determined, excessive grinding and screw damaging are avoided.

Description

technical field [0001] The invention relates to a pre-positioning device, in particular to a pre-positioning device and a use method for crown-breaking holes on the occlusal surface of implant restorations. It belongs to the field of medical equipment. Background technique [0002] The final restoration of oral implants is often done with bonded and retained crowns. However, because there is no positioning device on the crown surface, the crown is damaged in the later stage. When it needs to be removed and repaired, it cannot be accurately positioned, resulting in deviation of the opening, or even inappropriate opening direction. , into too deep, resulting in the wear of the central bolt of the implant, and finally an irreparable situation, leading to implant extraction, or increasing the financial burden of the patient and suffering from trauma that could have been avoided. Therefore, a pre-positioning device is needed to solve the above-mentioned problems. Contents of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61C8/00
CPCA61C8/0089A61C2204/00
Inventor 杜良智李哲马思维常晓峰汶希
Owner 西安交通大学口腔医院