CN103830011A - Design method of retention device for intraoral part of orthopaedic appliance capable of enhancing orthopedic force - Google Patents

Abstract

The invention discloses a design method for a retention device of an intraoral part of an orthopaedic appliance capable of enhancing the orthopedic force. The design method includes: a first step of trying bands on the maxillary first molars, namely, a step of trying the bands on the maxillary first molars so that the bands and the teeth are tightly attached and the bands are free of hindrance for chewing and irritation for gingivae; a second step of duplicating an intraoral tooth gypsum model, namely, a step of preparing a tooth impression model by using a dental alginate material, installing the bands on the maxillary first molars at left and right for retention with the bands being not adhered to the maxillary first molars, taking the tried bands out from the maxillary first molars, putting the bands in a cavity block, and filling the impression model with gypsum to prepare a gypsum model; and a third step of manufacturing a mobile orthopaedic appliance on the gypsum model, wherein an expansion screw is adhered to the orthopaedic appliance if rapid maxillary expansion is needed at the same time. The design method has characteristics of simple method, good retention effects, simple operation, wearing convenience and comfort for patients, capability of maintaining sanitation, and economical price.

Description

A kind of method for designing that strengthens orthopedic force appliance mouth inner part fixing device

Technical field

The invention belongs to mouth cavity orthodontic technical field, be specifically related to a kind of method for designing that strengthens orthopedic force appliance mouth inner part fixing device.

Background technology

Malocclusion refers to that child is in growth and development process, by inborn inherited genetic factors or posteriori environmental factors, as disease, oral habit, the tooth that teeth replace abnormally etc. cause, jawbone, the deformity of cranium face, show as tooth arrangement uneven, the jaw relation between upperdental arch is abnormal, jawbone size and form malposition etc.IS-One III class anterior crossbite is a kind of developmental anomaly, refers to that lower labial teeth is positioned at incisor lip side, is commonly called as " Bao Tian ".Anterior crossbite occurs, develops with child's growth promoter, is about 5-12% at the sickness rate of China, is a more common clinically class deformity, has a strong impact on that infant face is attractive in appearance, even function of pronunciation of interlock.Anterior crossbite deformity is divided into tooth source property, functional and bone three classes, and the bone that wherein causes due to upper jaw deficiency of development is counter to be closed comparatively common and clinical treatment is more difficult.

For the tooth phase be treatment anterior crossbite of paramount importance period, by the growth treatment of retrofiting, utilize patient's growth potential, impel the upper jaw of deficiency of development to grow forward, to treat deformitas maxillaris, guide tooth to close face and grow normally trend.A large amount of bibliographical informations show, use upper jaw front tractor promote upper jaw bone grow forward, rescue upper jaw deficiency of development compared with other technologies as chin pocket, functional appliance, to cover up treatment etc. more successful, therefore, it is the most frequently used method of the clinical early treatment's bone of current correction anterior crossbite deformity.Front traction orthodontic treatment device is divided into two parts, and a part is that head cap or mask are used as extra-oral anchorage.Another part is a mouthful interior part, bears and conducts pull strength to the upper jaw.The mouth inner part conventional for the tooth phase is that rear teeth plane closes cushion removable appliance, close pad in order to remove counter closing, requirement maintenance is good, can bear the mouth outer orthopedic force and be unlikely dislocation that is greater than 400g, but the appliance design of routine exists some problems aspect maintenance:

The first, because larger for the denture morphological variation of tooth phase, as deciduous teeth come off, permanent teeth is eruption or eruption deficiency not, and tooth, without falling recessed or falling recessed deficiency, causes appliance maintenance poor, cannot implement smoothly to lead before upper jaw bone.

Second, there is report by bonding to increase maintenance to removable appliance and tooth, but appliance is worn and cleaned to the method because patient oneself can not pluck, therefore can not keep appliance to clean and oral hygiene, and doctor need to take off appliance and adjusts when afterburning, infant is more painful, and appliance is also usually damaged.

Summary of the invention

In order to overcome above-mentioned the deficiencies in the prior art, give patient more effectively more comfortable treatment, the present invention aims to provide a kind of method for designing that strengthens orthopedic force appliance mouth inner part fixing device, have that method is simple, retention effect good, especially be applicable to the frequent poor effect of traditional maintenance method for denture infant, without bending comparatively complicated spring song, simple to operate; Patient wears with convenient, comfortable, is easy to keep health; And price economy.

To achieve these goals, the technical solution used in the present invention is: a kind of method for designing that strengthens orthopedic force appliance mouth inner part fixing device, comprises the steps:

The first, on maxillary first molar, try band on, specific practice is: on maxillary first molar, try band on, band and tooth are closely connected, do not hinder interlock, do not stimulate gingiva;

Second, turn over donsole inner teeth gear plaster model, specific practice is: first get a mouthful inner teeth gear die with dentistry alginate material, band is in place in upper jaw left and right sides first molar, band is not bonding with first molar, again the band having tried is taken off and is placed in the former of producing from first molar, then on die, record plaster model with Gypsum Fibrosum;

The 3rd, creative activity appliance on this plaster model, the specific practice of this step is:

With correction macromolecular material creative activity appliance base, base covers the upper jaw left and right sides first molar band turning on plaster model, take off from plaster model the appliance of having suppressed, use again the bonding hook for front traction of self curing plastic at the suitable position of lip side of appliance, can obtain and strengthen orthopedic force appliance mouth inner part fixing device;

In this step, if need upper jaw rapid palatal expansion simultaneously, expansion screw is adhered on appliance.

Described band adopts and is made up of stainless steel substrates or alloy piece.

The invention has the beneficial effects as follows:

Because having adopted, the present invention on tooth, tries finished product band on; The method for designing of turning over tooth plaster model creative activity appliance processed, method for designing is simple, and it is strong that designed appliance has retention; Simple to operate, do not need to bend various maintenance songs; Maintenance adnexa is easy to obtain; Patient wear is comfortable, is convenient to clean; Be suitable for for denture; The feature of price economy.

Detailed description of the invention

Below in conjunction with specific embodiment, the present invention is described in further detail.

Embodiment: patient Wang, man, nine years old, anterior crossbite, upper jaw deficiency of development, orthodontic treatment scheme is that the upper jaw leads that releasing is counter closes before fixing, improves interlock and face type.

Strengthen a method for designing for orthopedic force appliance mouth inner part fixing device,, comprise the steps:

First, on maxillary first molar, try band on, specific practice is: on maxillary first molar, try band on, band used is the preformation rustless steel band that new Asia, Hangzhou company produces, its buccal aspect is welded with little drag hook and buccal tube, and closely connected through trying definite No. 27 bands and tooth on, within its week, footpath is about 4cm, and do not hinder interlock, do not stimulate gingiva;

Second, turn over donsole inner teeth gear plaster model, specific practice is: first get a mouthful inner teeth gear die with dentistry alginate material, band is in place in upper jaw left and right sides first molar, band is not bonding with first molar, again the band having tried is taken off and is placed in the former of producing from first molar, then on die, record plaster model with Gypsum Fibrosum;

The 3rd, creative activity appliance on this plaster model, the specific practice of this step is:

With correction macromolecular material creative activity appliance base, base covers the upper jaw left and right sides first molar band turning on plaster model, take off from plaster model the appliance of having suppressed, use again the bonding hook for front traction of self curing plastic at the suitable position of lip side of appliance, can obtain and strengthen orthopedic force appliance mouth inner part fixing device;

In this step, if need upper jaw rapid palatal expansion simultaneously, expansion screw is adhered on appliance, appliance is worn in entrance, because the buccal tube on band, the adnexaes such as drag hook and removable appliance are closely chimeric, and band is fitted closely with tooth, just form highly stable retention system together, lead before making removable appliance be enough to bear the upper jaw, expand the treatment of orthopedic forces such as bow grade.

Claims (2)

1. a method for designing that strengthens orthopedic force appliance mouth inner part fixing device, comprises the steps:

The first, on maxillary first molar, try band on, specific practice is: on maxillary first molar, try band on, band and tooth are closely connected, do not hinder interlock, do not stimulate gingiva;

Second, turn over donsole inner teeth gear plaster model, specific practice is: first get a mouthful inner teeth gear die with dentistry alginate material, band is in place in upper jaw left and right sides first molar, band is not bonding with first molar, again the band having tried is taken off and is placed in the former of producing from first molar, then on die, record plaster model with Gypsum Fibrosum;

The 3rd, creative activity appliance on this plaster model, the specific practice of this step is:

With correction macromolecular material creative activity appliance base, base covers the upper jaw left and right sides first molar band turning on plaster model, take off from plaster model the appliance of having suppressed, use again the bonding hook for front traction of self curing plastic at the suitable position of lip side of appliance, can obtain and strengthen orthopedic force appliance mouth inner part fixing device;

In this step, if need upper jaw rapid palatal expansion simultaneously, expansion screw is adhered on appliance.

2. a kind of method for designing that strengthens orthopedic force appliance mouth inner part fixing device according to claim 1, is characterized in that, described band adopts and is made up of stainless steel substrates or alloy piece.