CN2680217Y

CN2680217Y - Micro screw fixing anchorage for dentistry distortion

Info

Publication number: CN2680217Y
Application number: CN 200320124802
Authority: CN
Inventors: 周彦恒
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-12-01
Filing date: 2003-12-01
Publication date: 2005-02-23
Anticipated expiration: 2013-12-01

Abstract

The utility model relates to a micro screw fixing anchorage, which is integrally formed. The maximum diameter of the utility model is 1.2-3 mm, and the length is 4-15 mm. The utility model comprises a head part, a neck part, a tight screwing part and a screw thread part. The neck part is positioned between the head part and the tight screwing part, the diameter of the neck part is smaller than the diameter of the tight screwing part which is a regular hexagon prism. The screw thread part is provided with a self-tapping thread which is in a cone shape, through holes are installed on the head part or the screwing part, and the lower side of the tight screwing part is provided with a base station which protrudes out of the tight screwing part. The fixing anchorage has a cabinet volume, and needs not to turn valves, and the utility model can be used after directly screwed. The adoption of the micro screw fixing anchorage can effectively control teeth to move in close distoangular and vertical directions, and no additional anchorage is needed. A patient can independently achieve the implantation and the extraction of an implant without surgeon's help. Compared with control media of the existing anchorage, the utility model has the advantages of low cost, and simple operation, and in addition, the treatment cycle of the patient is greatly shortened, which reduces patient's pain and treatment expense.

Description

The micro screw that is used for mouth cavity orthodontic is anchorage fixedly

Technical field

The application relates to a kind of mouth cavity orthodontic apparatus, is specifically related to fixedly anchorage of a kind of micro screw that is used for mouth cavity orthodontic.

Background technology

At present, often in the process of mouth cavity orthodontic treatment adopt anchorage control, anchorage control device commonly used has face-bow, intermaxillary traction, horizontal palate bar, lip retaining, hyoid arch and move single tooth etc. as anchorage with the group tooth.These methods often need the patient to cooperate, and additional Oral appliances increased subject discomfort, are unfavorable for that the normal enforcement of oral cavity function also is unfavorable for keeping oral hygiene.In recent years, implant anchorage becomes the research focus in mouth cavity orthodontic field gradually.Just abnormal doctor turns over the lobe operation under surgical help, leave implantation position on alveolar ridge, and implantation body is implanted.Use the anchorage unit of implantation body, under needn't the cooperation of dependent patient, obtain satisfied effect as mobile tooth.

Yet, the adult patients that traditional tooth implant only is applicable to missing tooth and needs to repair as anchorage, and tooth implant at first needs to undergo surgery, tooth implant is implanted in the alveolar ridge of edentulous region, implantation body implants to be needed after 6 months through second operation, could be used as just abnormal anchorage after making temporary prosthesis, so range of application is very limited.And that existing other implant anchorages also all exist volume is bigger, and the more high weak point of complicated operation and cost has limited popularizing and promoting of this technology.

Summary of the invention

For overcoming the defective that exists in the prior art, this utility model provides a kind of application convenient, and the small and exquisite micro screw of volume is anchorage fixedly, this fixedly anchorage can need not to turn over lobe implanting the some punching after local anesthesia, directly fixedly the anchorage screw-in gets final product.

This micro screw fixedly anchorage is made into integration, maximum gauge is 1.2-3mm, length is 4-15mm, and it comprises: head, cervical region, screw portion and threaded portion, wherein, cervical region is at head and screw between the portion, and its diameter is less than head and screw the diameter of portion, the portion of screwing is the prism of positive hexagonal prism shape, and described threaded portion has tapered tapping screw thread.

In addition, also can in the head of this micro screw and/or positive six prismatic portions, through hole be set, be used for wearing ligation silk or other just abnormal instruments.

On the other hand, also a base station can be set, it is formed at the below of the portion of screwing and the plane that protrudes from the portion of screwing is arranged, so that the operator uses the spiral shell cutter to screw in fixedly anchorage of this micro screw easily.

Because fixedly the anchorage volume is small and exquisite for the micro screw that this utility model provides, the micro screw fixedly screw-in position of anchorage also can need to have multiple choices with treatment, as preceding nasospinale below, the palate centre joint, retromolar triangle and lower jaw center is united and is waited the place, use micro screw fixedly anchorage can control effectively the tooth middle-distant direction and vertical to mobile and needn't consume extra anchorage.Different with endosteal implant is that just abnormal doctor does not even need surgical help, and finishes the implantation and the taking-up of implantation body alone.Because most of micro screw fixedly anchorage need be implanted between the backteeth root of the tooth, can therefore can avoid damaging the adjacent teeth root of the tooth with reference to adjacent teeth and X-ray sheet during the location.The micro screw that this utility model provides fixedly anchorage is promptly force-applied behind screw-in, and use needn't be cut after finishing, and is screwed out under local anaesthesia by just abnormal doctor to get final product.Leaving over the cavity can heal voluntarily, does not need special handling, compares with existing anchorage control device, cheap, simple to operate, and the patient treatment cycle shorten greatly, reduced misery and medical expense.

Description of drawings

Fig. 1 is the fixing front view of anchorage of micro screw among first embodiment of this utility model;

Fig. 2 is the fixing vertical view of anchorage of micro screw among first embodiment of this utility model;

Fig. 3 is along the profile in A-A cross section among Fig. 1;

Fig. 4 is the fixing front view of anchorage of micro screw among second embodiment of this utility model;

Fig. 5 is the fixing vertical view of anchorage of micro screw among second embodiment of this utility model;

Fig. 6 is along the cutaway view in A-A cross section among Fig. 4;

Fig. 7 for micro screw fixedly anchorage be fixed on sketch map on the dental ridge groove; And

Fig. 8 is the profile of micro screw when fixedly anchorage is fixed on the dental ridge groove.

The specific embodiment

In conjunction with the accompanying drawings, structure of the present utility model and characteristics thereof and advantage are elaborated.

As shown in Figure 1, it is the fixing front view of anchorage of micro screw among first embodiment of this utility model.This micro screw fixedly anchorage is made into integration by pure titanium material, and it comprises head 1, cervical region 3, and positive six prisms 4, base station 6 and threaded portion 5 are formed.Again referring to figs. 2 and 3, head 1 is positive hexagon, and is provided with a through hole 2, this through hole can be used to wear the ligation silk, in a preferred embodiment, between two relative edges of positive six prisms 4 distance be 1.7mm, the diameter of through hole 2 is 0.6mm.Thin cervical region 3 is formed by a circular arc rotation, and its minimum diameter along cross-sectional direction is 0.8mm, will be made as groove shape, is to be used for connecting and to fix just abnormal instruments such as other rubber bands or bundle silk.Distance is 1.7mm between two relative edges of positive six prismatic portions 4, and the maximum outside diameter of threaded portion 5 is 1.6mm, and it has tapered tapping screw thread, therefore can screw in also fastening easily.This micro screw fixedly anchorage is 2mm along the maximum gauge of cross-sectional direction, greatest length along the axle picture is about 12mm, the diameter of the base station 6 below positive six prismatic portions 4 is 2mm, therefore form the platform of a protrusion in itself and the joint of positive six prismatic portions 4, this micro screw fixedly anchorage screw in dental ridge groove etc. when locating, the available one spiral shell cutter with the interior hexagonal configuration that is complementary with positive six prismatic portions 4 screws in it, after fixedly the base station 6 of anchorage contacts with micro screw of spiral shell cutter, the operator as can be known this spiral shell cutter with head 1, cervical region 3 and positive six prismatic 4 surrounds, thereby screw operation, prevent the generation of maloperation.

As shown in Figure 7 and Figure 8, its show micro screw fixedly anchorage screw in sketch map and profile on the dental ridge groove, be fixed in the dental ridge groove and carry out the state of orthodontics by this figure fixedly anchorage of the present utility model as can be seen.

In another preferred embodiment of the present invention, as Fig. 4, shown in 5 and 6, this micro screw fixedly anchorage is made into integration by pure titanium material, wherein the profile of head 7 is one more flat cylindrical, and other structures are roughly identical with a last embodiment, among this embodiment, this micro screw fixedly anchorage is 2mm along the maximum gauge of cross-sectional direction, and greatest length vertically is about 10mm.

To the above, it only is preferred embodiment of the present utility model, this utility model can also have the preferred embodiment of multiple improvement and other, as positive six prismatic portions are become pentagonal prism, or a plurality of through holes and cervical region are set come fixed a bundle thread or other just abnormal instrument.

Those of ordinary skills are not breaking away under essence of the present utility model and the spirit, and various improvement and the variation that can also make all should be considered as the desired protection domain of this utility model.

Claims

1. the fixing anchorage of a micro screw, it is characterized in that fixedly anchorage is for being made into integration for this micro screw, maximum gauge is 1.2-3mm, and length is 4-15mm, it comprises: head, cervical region screws portion and threaded portion, wherein, cervical region is at head and screw between the portion, its diameter is less than head and the diameter that screws portion, and the portion of screwing is the prism of positive hexagonal prism shape, and described threaded portion has tapered tapping screw thread.

2. micro screw as claimed in claim 1 is anchorage fixedly, it is characterized in that a base station that protrudes from the portion of screwing being set screwing between portion and the screw division.

3. micro screw as claimed in claim 1 or 2 is anchorage fixedly, it is characterized in that described head and/or positive six prismatic portions are provided with its radial through hole of perforation.

4. micro screw as claimed in claim 1 or 2 is anchorage fixedly, it is characterized in that described micro screw fixedly anchorage be made into integration by pure titanium material.