CN210903430U - Cantilever type appliance - Google Patents

Abstract

The utility model discloses a cantilever type appliance, which comprises an appliance jaw plate base body, a snap ring and a cantilever rod; the jaw plate base of the appliance is a dentition sleeve with an arc-shaped structure, at least one snap ring is fixed on each side of the jaw plate base of the appliance, one end of each snap ring is fixed in the jaw plate base of the appliance, and the other end of each snap ring extends to the outer side of the jaw plate base of the appliance and is bent to form a clamping sleeve capable of being sleeved on teeth; one end of the cantilever rod is fixed in the appliance jaw plate base body and close to the front side of the fixed appliance jaw plate base body, and the other end of the cantilever rod extends to the posterior tooth locking area from the outer side of the appliance jaw plate base body along the shape trend of the alveolar bone. The cantilever type appliance is used for correcting posterior tooth locking, is a method which is very beneficial to the study and use of orthodontists, has simple and easy-to-learn principle, simple and convenient manufacture and operation, is comfortable and convenient for patients to wear, has no wound injury to the patients, and has low cost.

Description

Cantilever type appliance

Technical Field

The utility model relates to a medical instrument for oral use, in particular to a cantilever type appliance.

Background

The posterior locking is one of the common problems of oral clinical malposition, the correction has certain difficulty, and a clinician selects different posterior locking treatment methods according to the actual personalized expression of the oromaxillofacial region of clinical cases.

For posterior locking treatment, the following methods are conventionally used: (1) the application of the anchorage of the planting nail; (2) applying the interactive traction of the upper jaw leather collar and the lower jaw leather collar; (3) expanding or narrowing the application of arch devices, and the like. Individuals represent tens of millions, but these traditional methods of orthodontic post-occlusion may not be fully applicable in all cases, particularly for stable control of the mandibular plane angle, and may even cause unnecessary damage to the patient due to improper use, such as: (1) the application of the implant anchorage can be limited by the physical condition or intention of the patient or the individual is in the imperfect medical condition of the primary hospital, and the use of the implant anchorage nail cannot be carried out. (2) In the application of the interactive traction of the leather collars of the upper and lower jaws, the anchorage tooth can be displaced uncontrollably, which in turn can cause the occlusion of the posterior teeth to rise, and the plane of the lower jaw rotates clockwise unnecessarily. (3) In the application of enlarged or narrowed devices, discomfort of patient wear may lead to decreased patient compliance or complications such as caries or mucosal damage from device use.

The expression form of posterior tooth locking is various, the selection of a quick, effective, safe and comfortable locking correction method is a difficult point in orthodontic treatment, and the current clinical common correction method comprises the following steps: 1. anchorage method of planting nail; 2. inter-jaw interactive traction method; 3. orthodontic auxiliary archwire method; 4. modified palatine bar palatal side traction, etc. The treatment method is selected according to the specific situation of the patient, and the traditional common correction method has more or less certain limitations, such as: 1. the primary medical unit has no ability to develop the application of the absolute anchorage of the implant nail, or the patient cannot implant the implant nail or is unwilling to implant the implant nail due to the patient's own factors. 2. The intermaxillary distraction method is only suitable for cases with light closure and shallow vertical closure, and the method requires that the apposed molars have fully erupted and therefore cannot be used for early interdiction treatment of closure. 3. The orthodontic auxiliary arch wire method has limitations of direction and size. 4. Modified palatal bar palatal lateral traction is generally applicable to cases where individual posterior teeth are locked, and is often used in patients where the lower jaw is normal and the upper or front molars are positively locked.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned not enough that exists among the prior art, the utility model provides a ware is rescued to cantilever type. The cantilever type appliance can make up the adverse factors of the traditional correction method, and has the advantages of effective treatment, safety, adjustability, wide applicability and good comfortable tolerance.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a cantilever type appliance comprises an appliance jaw plate substrate, a clamping ring and a cantilever rod;

the orthodontic appliance jaw plate base is a dentition sleeve with an arc-shaped structure, at least one snap ring is fixed on the orthodontic appliance jaw plate base, one end of the snap ring is fixed in the orthodontic appliance jaw plate base, and the other end of the snap ring extends to the outer side of the orthodontic appliance jaw plate base and is bent to form a clamping sleeve capable of being sleeved on teeth;

one end of the cantilever rod is fixed in the appliance jaw plate base body and close to the front side of the fixed appliance jaw plate base body, and the other end of the cantilever rod extends to the locking area of the posterior teeth from the outer side of the appliance jaw plate base body along the shape trend of the alveolar bone.

As an optimized proposal of the utility model, the two ends of the jaw plate base body of the appliance are respectively connected with a closing backing plate, and the closing backing plate is positioned at the tooth position of the non-locking area of the back teeth.

As another preferable aspect of the present invention, the other end of the cantilever bar is bent to form a pull ring.

As an improvement of the utility model, the jaw plate base of the appliance is made of self-setting resin.

As another improvement of the present invention, the snap ring and the cantilever bar are made of stainless steel wires.

As a further improvement of the utility model, at least two snap rings are fixed on the jaw plate base body of the appliance.

Compared with the prior art, the utility model has the advantages of as follows:

1. when the cantilever type appliance is used, the jaw plate base body of the appliance is sleeved on the tooth row, the snap ring is sleeved on the tooth, the free end of the cantilever rod extends to the locking area of the posterior tooth, one end of the leather ring is fixed on the cantilever rod, the other end of the leather ring is fixed on the lateral buckle of the locking tooth tongue, and orthodontic force is applied by means of the elasticity of the elastic leather ring to correct the locking tooth. The cantilever type appliance is used for correcting posterior tooth locking, is a method which is very beneficial to the study and use of orthodontists, has simple and easy-to-learn principle, simple and convenient manufacture and operation, is comfortable and convenient for patients to wear, has no wound injury to the patients, and has low cost.

2. Flexibility and variability, the length and the direction of the cantilever bar can be adjusted according to the adaptability of the correction process, and by combining the application of the elastic leather collar, the orthodontic force with ideal size and direction can be well applied to the locking teeth, particularly the force can be controlled in the three-dimensional direction, so that the problems possibly encountered in the application process of most of correction devices are solved, such as the force direction needs to be adjusted in an adaptive manner, or the force application direction always has deviation.

3. Through closing the application of backing plate, can be accurate quick, convenient simple open the interlock, can arrange the level upper jaw dentition in order when correcting the closure, close the coordination about convenient on one hand, on the other hand corrects the dentition in the same period and has shortened treatment time.

4. The taking and wearing are convenient, the patient can well carry out oral hygiene nursing, and simultaneously, good chewing efficacy can be provided. After the cantilever type appliance is used for full-mouth orthodontic treatment, the change of tooth and bone can be ideally controlled, after a good closing position and a cusp-fossa locking relation is established, the clinical curative effect can be stable for a long time, and one locking rebound is avoided.

Drawings

FIG. 1 is a first schematic diagram of a cantilever orthosis;

FIG. 2 is a second schematic diagram of a cantilevered orthosis;

fig. 3 is a third schematic structural view of a cantilever appliance.

In the figure: 1-a snap ring; 2-correcting device jaw plate base body; 3-cantilever bar; 4, combining a backing plate; 5, a pull ring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 3, a cantilever type appliance comprises an appliance jaw plate base 2, a snap ring 1, a cantilever bar 3 and a closing cushion plate 4.

The jaw plate base 2 of the appliance is a dentition sleeve with an arc-shaped structure, at least one snap ring 1 is fixed on the jaw plate base 2 of the appliance, one end of the snap ring 1 is fixed in the jaw plate base 2 of the appliance, and the other end of the snap ring 1 extends to the outer side of the jaw plate base 2 of the appliance and is bent to form a clamping sleeve capable of being sleeved on teeth. The design of the common positioning channel is mainly considered when the jaw plate base body 2 of the appliance is manufactured so as to easily finish taking and wearing of the appliance, and the jaw plate base body 2 of the appliance is used as a main body part of the whole appliance and needs to achieve the purpose of providing good retention and stability for the appliance. The jaw plate base 2 of the appliance is fixed with at least two snap rings 1, the best mode is that at least one snap ring at each side is fixed on the jaw plate base of the appliance, the number and the types of the snap rings which accord with the oral form of each patient can be designed and selected according to the specific situation in the mouth of each patient, and the NCTA can generate good retention effect.

One end of the cantilever rod 3 is fixed in the appliance jaw plate base 2 and close to the front side of the fixed appliance jaw plate base 2, and the other end of the cantilever rod 3 extends from the outer side of the appliance jaw plate base 2 to the posterior tooth locking area along the shape trend of the alveolar bone. The cantilever rod 3 needs to have a relatively long suspension length, so the original manufacturing material needs to have enough hard force and elasticity, and the cantilever rod is generally manufactured by bending a stainless steel round wire with the size of 0.8 mm.

The two ends of the jaw plate base body 2 of the appliance are respectively connected with the joint backing plate 4, the joint backing plate 4 is positioned at the tooth position of the non-locking area of the back teeth, the appliance is mainly provided for unlocking, locking and occluding, a treatment space in the locking and correcting process is provided, and the possibility of using the chewing function of a patient is provided. The other end of the cantilever rod 3 is bent to form a pull ring 5, so that one end of the leather collar is fixed on the pull ring 5 on the cantilever rod 3, the other end of the leather collar is fixed on the locking tooth tongue side buckle, and orthodontic force is applied by means of the elasticity of the elastic leather collar to correct the locking tooth. The jaw plate base body 2 of the appliance is made of self-hardening resin, the snap ring 1 and the cantilever rod 3 are made of stainless steel wires, and the snap ring 1 and the cantilever rod 3 can be integrally made of the same stainless steel wire.

The main details of making the cantilever appliance include: (1) the type of the snap ring 1, the placement position and the placement quantity of the snap ring 1 are adjusted, the harmlessness to the abutment is met, and the sufficient retention force of the appliance is provided; (2) the position and the height of the backing plate 4 are adjusted to adapt to the chewing function of the patient, and the mouth and jaw vertical height of the patient within the normal physiological range is adapted by appropriately opening occlusion; (3) the length and the direction of the cantilever rod 3 are adjusted, so that adjustable and controllable correction force can be provided, the shape and the trend of the alveolar bone in the mouth of a patient can be conformed, and the possibility of mucosal injury is reduced to the minimum; (4) the thickness and the extension range of the jaw plate base 2 of the appliance are adjusted, so that the sufficient resistance and the retention of the appliance are provided, the extension range is reduced as far as possible on the premise of meeting the resistance and the retention, and the comfort of a patient in the wearing and the use of the appliance is improved.

When the cantilever type appliance is used, an appliance jaw plate base body 2 is sleeved on a tooth row, a clamping ring 1 is sleeved on a tooth, the free end of a cantilever rod 3 extends to a rear tooth locking area, a tongue side buckle is adhered to the side face of a lower jaw locking tooth tongue, one end of a leather ring is fixed on a pull ring 5 on the cantilever rod 3, the other end of the leather ring is fixed on the locking tooth tongue side buckle, and orthodontic force is applied by means of the elasticity of an elastic leather ring to correct the locking tooth. If necessary, the direction of the cantilever rod 3 is adjusted slightly according to the treatment process so as to correctly transmit the force direction, and the size of the elastic leather ring is changed according to the treatment condition.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims (6)

1. A cantilever appliance, comprising: comprises an orthopedic appliance jaw plate substrate (2), a snap ring (1) and a cantilever rod (3);

the orthodontic appliance jaw plate base body (2) is a dentition sleeve with an arc-shaped structure, at least one snap ring (1) is fixed on the orthodontic appliance jaw plate base body (2), one end of the snap ring (1) is fixed in the orthodontic appliance jaw plate base body (2), and the other end of the snap ring (1) extends to the outer side of the orthodontic appliance jaw plate base body (2) and is bent to form a clamping sleeve capable of being sleeved on teeth;

one end of the cantilever rod (3) is fixed in the appliance jaw plate base body (2) and close to the front side of the fixed appliance jaw plate base body (2), and the other end of the cantilever rod (3) extends to the posterior tooth locking area from the outer side of the appliance jaw plate base body (2) along the shape trend of the alveolar bone.

2. The cantilevered appliance of claim 1, wherein: two ends of the jaw plate base body (2) of the appliance are respectively connected with a joint backing plate (4), and the joint backing plate (4) is positioned at the tooth position of the non-locking area of the posterior teeth.

3. The cantilevered appliance of claim 2, wherein: the other end of the cantilever rod (3) is bent to form a pull ring (5).

4. The cantilevered appliance of claim 1, wherein: the jaw plate base body (2) of the appliance is made of self-setting resin.

5. The cantilever appliance of any one of claims 1 to 4, wherein: the clamping ring (1) and the cantilever rod (3) are made of stainless steel wires.

6. The cantilevered appliance of claim 5, wherein: at least two snap rings (1) are fixed on the jaw plate base body (2) of the appliance.

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