CN114795533A - Dual-purpose bracket combining straight wire bow and differential force - Google Patents

Abstract

The invention belongs to the field of medical instruments, and relates to a dual-purpose bracket combining a straight wire bow and a differential force, which comprises a bracket body, wherein a cut end bracket wing and a gum end bracket wing are arranged on the bracket body, a straight wire bow groove is arranged on the bracket body, the gum end bracket wing or the cut end bracket wing is designed into an integrated bracket wing, a differential force groove is arranged below the integrated bracket wing, an auxiliary groove is arranged below the non-integrated bracket wing, and a ligation tube is arranged below the differential force groove. The bracket body is provided with the straight wire arch groove, the differential force groove and the auxiliary groove, different grooves are adopted in different treatment stages, the functional characteristics of the BEgg bracket and the straight wire arch bracket are combined, the advantages of the BEgg system and the square wire arch system can be effectively combined, and the problems that the conventional fixed appliance is single in function, long in correction process time and the like are solved.

Description

Dual-purpose bracket combining straight wire bow and differential force

Technical Field

The invention belongs to the field of medical appliances, and relates to an orthodontic component, in particular to a dual-purpose bracket which can be used for orthodontics by using a straight wire arch technology and orthodontics by using differential force.

Background

In the orthodontic trade, fixed correction ware is the most extensive one kind of correction ware of using, mainly comprises support groove, belt ring, correction arch wire, buccal surface pipe and annex etc. and wherein hold in the palm the groove and be the most important part, and in fixed correction ware's the past transformation, development process, support the groove as the main part and carried out innovation many times and deformation, has multiple different structural style, has appeared many different systems, generally speaking, fixed correction ware is present and is divided into two major systems: a square wire bow system (also called a straight wire bow system) and a Begg system.

The straight wire appliance adopts the mode of integral movement to correct the teeth of the patient, and the Begg appliance adopts the mode of firstly obliquely moving the dental crown and then moving the dental root to correct the teeth of the patient. The working principle of the two is different, and the two have defects, such as difficult opening and occlusion, slow tooth movement and high anchorage requirement in the straight wire arch technology, and the anchorage of the implant nail is often required to be matched. The Begg technology has the defects that the tooth position is difficult to accurately adjust in the later period, the correction of a high-angle case is not facilitated, the oral hygiene is difficult to maintain and the like.

The Tip-Edge bracket disclosed in the eighties of the last century grinds the groove of the straight wire arch bracket diagonally, and can combine the Begg technology with the straight wire arch technology, so that teeth can move obliquely and have the function of a straight wire arch corrector. However, the Tip-Edge bracket is difficult to fully embody the advantages of the Begg technology and the square wire arch technology, although the inclined movement of the teeth in the early stage is fast, the effect is slow when the torque is adjusted vertically in the later stage, theoretically, the square wire arch system and the Begg system are combined together, but the clinical effect is unsatisfactory, the operation in the later stage of treatment is complex, and the technology is not widely applied clinically domestically and internationally since the publication.

Whether straight wire brackets, Begg brackets, or Tip-Edge brackets, take the form of a single slot, so that some of the effects of innovation and variation are limited.

Disclosure of Invention

The invention aims to provide a dual-purpose bracket combining a straight wire arch and differential force, wherein a bracket body is provided with not only a straight wire arch groove but also a differential force groove, different grooves are adopted in different treatment stages, and the dual-purpose bracket has the functional characteristics of a toggle bracket and a straight wire arch bracket, can effectively combine the advantages of a toggle system and a square wire arch system, and solves the problems of single function, long time consumption in the correction process and the like of the existing fixed corrector.

In the dental industry, depending on the orientation of a tooth, a part near the cusp is generally defined as an incisal (or occlusal) side, and a part near the gum is generally defined as a gingival side. Similarly, in the orthodontic industry, the attachment is attached to the surface of the tooth, and the portion near the cusp is called the incisal end, and the portion near the gum is called the gum end.

The general term of the dental industry refers to a through-hole in a component for placement of an accessory being a tube (particularly a through-hole in a bracket of an appliance), for example, a square tube is a square through-hole and a round tube is a round through-hole.

The teeth are separated by taking the upper and lower middle incisors as the midpoints, one surface close to the middle incisors is a mesial surface, and the other surface far away from the middle incisors is a distal surface.

Crown angle (shaft inclination): the angle formed by the long axis of the clinical crown of the tooth and the perpendicular line of the jaw plane is a crown angle or an axis inclination angle (tip) which represents the inclination degree of the near center and the far center of the tooth. The coronal angle is positive when the gingival end of the long axis of the clinical crown inclines to the far middle and negative when the gingival end inclines to the near middle. The normal jaw has a crown angle that is mostly positive.

Parmer tooth position representation: the patient directions are respectively expressed as "upper right +", "upper left +", "lower right +", and "lower left +". Teeth from the middle incisors to the last molars are designated 1-8, as are the upper right cuspids for the upper right 3.

The technical scheme adopted by the invention is as follows:

a dual-purpose bracket combining a straight wire bow and differential force comprises a bracket body, wherein two bracket wings are arranged on the bracket body, one bracket wing is an end cutting bracket wing, the other bracket wing is a gum end bracket wing, a straight wire bow groove is arranged on the bracket body, the position of the straight wire bow groove is the same as that of a conventional straight wire bow bracket, and the groove data and the bracket bottom thickness are both in accordance with the normal use requirements. The gingival end bracket wing or the incisal end bracket wing is designed into an integrated bracket wing, a differential force groove is arranged below the integrated bracket wing, the opening of the differential force groove faces to the outside (correspondingly faces to the gingival end or the incisal end), and is perpendicular to the opening of the straight wire arch groove, except for a crown angle, other prefabricated angles such as a torque angle are the same as the straight wire arch groove, the middle part of the bottom of the groove (bottom) of the differential force groove is the highest point of the bottom of the groove, the end part (one end or two ends) of the groove is lower than the middle part, the orthodontic arch wire takes the highest position in the middle as a fulcrum, and teeth can do left-right inclined movement to adjust the crown angle. An auxiliary groove is arranged below the non-integrated bracket groove wing (the other bracket groove wing), the opening of the auxiliary groove faces to the outside and is perpendicular to the opening of the straight wire arch groove, and the prefabricated angle data such as the shaft inclination angle, the torque angle and the like of the auxiliary groove are the same as those of the straight wire arch groove. Set up a ligature pipe below the differential force groove, the direction of ligature pipe is perpendicular with the direction of differential force groove, when will correcting the arch wire and put into the differential force groove and treat, utilizes the ligature silk to carry out the ligature through the ligature pipe to the correction arch wire in the differential force groove, avoids correcting the arch wire and breaks away from the differential force groove.

The straight wire bow groove and the differential force groove can be used independently or in combination. When the straight wire bow groove is used, the straight wire bow technology is applied, when the differential force groove is used, the begg technology (differential force technology) is applied, and when the straight wire bow technology and the differential force technology are combined for use, the straight wire bow technology and the differential force technology can be combined for application.

As a further improvement of the invention, a ligation groove is arranged at the top of the bracket body corresponding to the ligation tube and can be used for accommodating a ligation thread during ligation, so that the phenomenon that the ligation thread protrudes out of the top surface of the bracket body to cause discomfort of a patient is avoided.

As a further development of the invention, the straight wire arch groove is designed as a buccal tube structure. If the buccal tube is applied to No. 4, 5, 6 and 7 teeth, the buccal tube can be made into a buccal tube which has the functions of similar self-ligating brackets and reducing friction force.

As a further improvement of the invention, the groove bottom (bottom) of the differential force groove is designed to be a convex arc structure, namely the groove bottom of the groove is raised in the middle part, and the two sides of the groove bottom are formed by bending arcs towards the two ends of the groove.

As a further improvement of the invention, the groove bottom (bottom) of the differential force groove is designed to be a semi-arc structure, namely, the groove bottom is formed by bending an arc towards one end of the groove on one side of a datum point by taking the middle part as the datum point.

As a further improvement of the invention, the groove bottom (bottom) of the differential force groove is designed into a wedge-shaped structure with a bulge at the middle part and slope surfaces at two sides, namely the middle part of the groove bottom of the groove is bulged, and the two sides are formed by inclining towards two ends of the groove in a slope manner.

As a further improvement of the invention, the groove bottom (bottom) of the differential force groove is designed to be a semi-inclined surface structure, namely the groove bottom is formed by inclining towards one end of the groove in a slope manner on one side of a reference point by taking the middle part as the reference point.

Compared with the prior art, the invention has the following technical effects:

1. the bracket body is provided with the straight wire arch groove and the differential force groove, different grooves are adopted in different treatment stages, teeth can freely tilt and move like a begg technology when the orthodontic arch wire is in the differential force groove, the straight wire arch groove can easily vertically move teeth and moving tooth roots which are already tilted and moved in the later treatment period, the functional characteristics of a begg bracket and a straight wire arch bracket are combined, the advantages of a begg system and a square wire arch system can be effectively combined, and the problems that the existing fixing appliance is single in function, long in orthodontic process time and the like are solved.

2. The straight wire arch groove and the differential force groove can be used independently or in combination, when the straight wire arch groove and the differential force groove are used independently, the straight wire arch groove and the differential force groove are applied to a straight wire arch technology and a begg technology (differential force technology), when the straight wire arch groove and the differential force groove are used in combination, the straight wire arch groove and the differential force groove are used alternately in each treatment stage, and then the auxiliary groove and the three grooves are combined for application, so that the operations of opening occlusion treatment deep covering, stretching anterior tooth treatment opening and closing, root control movement and the like are simple, and the efficiency is improved.

3. When the differential force groove is used for early treatment, when steel wires with the same size as the groove are placed in the straight wire arch grooves of the double cuspids and the molar teeth, the rear teeth can be connected into a whole to form an anchorage bridge for combined anchorage, anchorage is obviously enhanced, and the use of anchorage nails can be reduced.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention.

Fig. 2 is a schematic top view of the structure of the present invention.

Fig. 3 is a right side view showing the structure of the present invention.

FIG. 4 is a schematic plan view of the structure of the differential power groove of the present invention in which the groove bottom is a half-arc structure.

FIG. 5 is a schematic plan view of the differential power groove of the present invention with the groove bottom in a wedge configuration.

FIG. 6 is a schematic plan view of the structure of the differential power groove of the present invention in which the groove bottom is a half-slope structure.

FIG. 7 is a graph showing the effect of the orthodontic wire passing through the straight wire arch groove, the differential force groove and the auxiliary groove of the brackets at different tooth positions.

Fig. 8 is a graph of the effect of the application of the orthodontic archwire as the root control moves.

In the figure: 1. a bracket body; 2. an auxiliary groove; 3. cutting end slot supporting wings; 4. a straight wire arch groove; 5. gingival end socket wings; 6. a differential force slot; 61. a convex arc-shaped groove bottom; 62. a semi-arc groove bottom; 63. a wedge-shaped trench bottom; 64. a semi-inclined groove bottom; 7. ligating the tube; 8. ligating a groove; 9. correcting the arch wire.

Detailed Description

The invention will now be further described, by way of example only, and not by way of limitation, with reference to the accompanying drawings.

In the structure shown in fig. 1, 2 and 3, the dual-purpose bracket combining the straight wire bow and the differential force comprises a bracket body 1, wherein a cutting end bracket wing 3 and a gum end bracket wing 5 are arranged on the bracket body, a straight wire bow groove 4 is arranged on the bracket body, the position of the straight wire bow groove is the same as that of a conventional straight wire bow bracket, and the groove data (including an axis inclination angle, a torque angle and the like) and the thickness of the bracket bottom are in accordance with the normal use requirements. The gingival end groove supporting wing 5 is designed into an integral groove supporting wing, a differential force groove 6 is arranged below the gingival end groove supporting wing 5, the opening of the differential force groove faces to the gingival end and is perpendicular to the opening of the straight wire arch groove, except for a crown angle, other prefabricated angles such as a torque angle and the like are the same as those of the straight wire arch groove, the groove bottom (bottom) of the differential force groove (because the opening of the differential force groove faces to the gingival end, the lower part of the integral groove supporting wing is just one groove side wall of the differential force groove, the other groove side wall is close to the bracket base part, and the groove bottom of the groove is adjacent to the side wall of the straight wire arch groove) is a convex arc-shaped groove bottom 61 (namely, the groove bottom is raised in the middle part, and two sides are arc-shaped and are bent towards two ends of the groove), the orthodontic treatment is carried out by taking the highest part in the middle as a fulcrum, and teeth can move obliquely from left to right. An auxiliary groove 2 is arranged below an end cutting bracket wing 3 (a non-integrated bracket wing, the structure of which is the same as that of two wings of a conventional bracket wing), the opening of the auxiliary groove faces to the cutting end and is vertical to that of a straight wire arch groove 4, the prefabricated angle data such as the shaft inclination angle, the torque angle and the like of the auxiliary groove are the same as those of the straight wire arch groove 4, and the auxiliary groove 2 can be used for assisting in lifting or lowering teeth and assisting in tooth root lingual or labial movement during orthodontics. The ligation pipe 7 is arranged below the differential force groove, the direction of the ligation pipe 7 is perpendicular to the direction of the differential force groove 6, and a ligature wire can be used for ligating an orthodontic arch wire in the differential force groove 6 through the ligation pipe 7 so as to prevent the orthodontic arch wire from being separated from the differential force groove. Ligation grooves 8 are formed in the positions, corresponding to the ligation tubes 7, of the top of the bracket body 1, and can be used for accommodating ligation wires during ligation, so that the ligation wires are prevented from protruding out of the top surface of the bracket body, and discomfort of a patient is caused.

According to the design principle of the invention, the integrated bracket wing and the non-integrated bracket wing are two corresponding bracket wings which can be interchanged, for example, when the gingival end bracket wing is designed into the integrated bracket wing, the non-integrated bracket wing is the cut end bracket wing, the differential force groove is arranged below the gingival end bracket wing, the opening of the differential force groove faces to the gingival end, the auxiliary groove is arranged below the cut end bracket wing, the opening of the auxiliary groove faces to the cut end, and vice versa.

According to the design principle of the present invention, the bottom of the differential force groove 6 can be designed into various structural forms according to the moving direction of the teeth, for example, when the teeth need to move obliquely far and middle, only the far and middle surface of the bottom of the groove needs to be designed into an arc surface, that is, the bottom of the groove is designed into a semi-arc bottom 62, that is, the bottom of the groove is formed by bending an arc toward one end of the groove at the far and middle surface side of the reference point, as shown in fig. 4. The groove bottom can also be designed as a wedge-shaped groove bottom 63 with a middle part protruding and two sides being slope surfaces, namely the middle part protruding of the groove bottom of the groove, and the two sides being slope surfaces and inclining to the two ends of the groove, as shown in fig. 5. When the teeth need to tilt to the far middle, only the far middle surface of the groove bottom needs to be designed into a slope, that is, the groove bottom is designed into a semi-slope groove bottom 64, that is, the groove bottom is formed by taking the middle part as a reference point and tilting towards one end of the groove in a slope manner at one side of the far middle surface of the reference point, as shown in fig. 6.

The straight wire bow groove and the differential force groove can be used independently. When the straight wire arch groove is used, the straight wire arch technology is applied, and the whole orthodontic arch wire can be moved integrally after being completely inserted into the groove during correction. When the differential force groove is used, the differential force technology is applied to the piggy technology (differential force technology), so that the teeth move along the correcting arch wire in an inclined mode, the correcting arch wire is in point contact with the bottom of the protrusion of the differential force groove when the teeth move, and friction force is reduced.

The straight wire bow groove and the differential force groove of the invention are often used in combination, i.e. the straight wire bow technology and the differential force technology are used in combination. The differential force technique may be referred to as "differential force wire arch technique" when the number of components is large (e.g., differential force technique for the first and second stages of treatment, and wire arch technique for the third stage). The major applications of the straight wire arch technology are called "straight wire arch differential force technology" (for example, the differential force technology is used in the first stage of treatment, and the straight wire arch technology is used in the second and third stages).

The operation steps of the differential force straight wire bow technology are as follows:

the differential force technology is mainly adopted in the first stage of correction for aligning teeth, opening occlusion stage and second stage for closing gap and adjusting molar relation, and the straight wire arch technology is adopted in the third stage of correction for adjusting tooth axis and torque.

In the first stage, the anterior molars of the upper and lower jaws do not adhere to the bracket, the upper and lower jaws are bent with 0.016 inch Australian wire at about 2mm proximal to the buccal tubes of the first molars on both sides of the upper jaw to form a 35 DEG retroflexion, and the lower jaws are bent proximal to the buccal tubes of the first molars on both sides of the lower jaw to prevent the bending so as to maintain the arch length and the 35 DEG retroflexion; class II inter-jaw traction is performed by using 1/4 and 2.0 ounce rubber bands, upper and lower dentitions are aligned by using a filament light force differential correction technical principle, the upper anterior teeth are retracted while occlusion is opened, and a gap is closed by performing Z-line traction in the second phase. The upper and lower jaws are stuck with anterior molar bracket and nickel-titanium round wire at later stage, the lower dentition is aligned, then the arch wire is gradually changed from thin to thick and soft to hard, and the tooth axis and torque are adjusted by using straight wire arch technology.

The operation steps of the straight wire bow differential force technology are as follows:

the "differential force trough" and differential force techniques are used during the first stage of alignment and open bite. And in the second stage, closing the gap, adjusting the molar relation and adjusting the tooth axis and torque in the third stage of correction, adopting a straight wire arch technology.

In the implementation of the invention, corresponding brackets are used at different tooth positions in a group of a plurality of brackets, the structures of the straight wire arch grooves can be different, for example, the brackets are applied to No. 4, 5, 6 and 7 teeth, the straight wire arch grooves are designed into buccal tube structures, the buccal tube structures have the functions of similar self-locking brackets and reducing friction force, the straightening steel wire can be clinically inserted without ligation, the brackets of No. 1, No. 2 and No. 3 teeth can be made into completely open straight wire arch grooves, after the straightening arch wire is inserted into the buccal tubes of No. 4, No. 5, 6 and No. 7 teeth, the straightening arch wire enters the grooves from the horizontal direction at the No. 1, No. 2 and No. 3 teeth, and finally the whole arch wire completely enters the grooves.

Under a special condition, the straight wire arch groove, the differential force groove and the auxiliary groove of the bracket at different tooth positions can be simultaneously combined, namely, one orthodontic arch wire can simultaneously pass through the straight wire arch groove, the differential force groove and the auxiliary groove at different tooth positions. For example, when the orthodontic archwire passes through the posterior teeth "differential power slot", the cuspid "straight arch slot", and the incisors "auxiliary slot", the anterior teeth can be depressed, the posterior teeth raised, the occlusion opened, and the deep occlusions treated, as shown in fig. 7. When the orthodontic arch wire passes through the auxiliary groove of the posterior teeth, the straight arch groove of the cuspid and the differential force groove of the incisor, the anterior teeth can be lengthened, the posterior teeth can be pressed down, and the opening and closing can be treated.

The labial arch in the auxiliary groove is bent in the middle of the first molar to prevent bending and keep the length of the dental arch, the labial arch in the differential force groove is closed by a closing curve or tightened by a rubber band, so that the root of the anterior tooth can move towards the tongue, namely the root control (torque control), the operation is simpler than that of increasing positive torque on a square wire, and because the pushing force of the labial arch in the auxiliary groove for preventing bending and the pulling force of the tongue in the differential force groove for moving the root of the anterior tooth are offset, the first molar serving as an anchorage tooth can be fixed in place when the root of the anterior tooth moves towards the tongue, and the anchorage tooth advancing when the torque of the anterior tooth is corrected by the traditional method is avoided, as shown in figure 8. Similarly, the lip arch in the differential force groove is bent in the middle of the first molar to prevent bending and keep the length of the dental arch, and the lip arch in the auxiliary groove is closed by a closing curve or tightened by a rubber band, so that the root and the lip of the anterior tooth can move, and the operation is simple and easy.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (7)

1. A dual-purpose bracket combining a straight wire bow and differential force is characterized in that: the bracket comprises a bracket body, wherein two bracket wings are arranged on the bracket body, one bracket wing is an end cutting bracket wing, the other bracket wing is a gum end bracket wing, and a straight wire bow groove is formed in the bracket body; the gingival end bracket wings or the cut end bracket wings are designed to be integrated bracket wings, a differential force groove is arranged below the integrated bracket wings, the opening of the differential force groove faces outwards and is mutually perpendicular to the opening of the straight wire arch groove, the middle part of the groove bottom of the differential force groove is the highest point of the groove bottom, and the end part of the groove is lower than the middle part; an auxiliary groove is arranged below the non-integrated bracket groove wing, and the opening of the auxiliary groove faces to the outside and is vertical to the opening of the straight wire arch groove; a ligation tube is arranged below the differential force groove, and the direction of the ligation tube is vertical to the direction of the differential force groove.

2. The dual-purpose bracket for a straight wire bow in combination with a differential force of claim 1, wherein: and ligation grooves are formed in the positions, corresponding to the ligation tubes, of the top of the bracket body.

3. The dual-purpose bracket for a straight wire bow in combination with a differential force of claim 1, wherein: the straight wire arch groove is designed into a buccal tube structure.

4. The dual-purpose bracket for a straight wire bow in combination with a differential force of claim 1, wherein: the groove bottom of the differential force groove is designed to be a convex arc structure, namely the groove bottom of the groove is protruded in the middle part, and two sides of the groove bottom are arc-shaped and are bent towards two ends of the groove.

5. The dual-purpose bracket for a straight wire bow in combination with a differential force of claim 1, wherein: the groove bottom of the differential force groove is designed to be a semi-arc structure, namely the groove bottom takes the middle part as a datum point, and one side of the datum point is in an arc shape and bends towards one end of the groove.

6. The dual-purpose bracket for a straight wire bow in combination with a differential force of claim 1, wherein: the groove bottom of the differential force groove is designed into a wedge-shaped structure with a convex middle part and slope surfaces at two sides, namely, the middle part of the groove bottom of the groove is convex, and the two sides are inclined towards two ends of the groove in a slope manner.

7. The dual-purpose bracket for a straight wire bow in combination with a differential force of claim 1, wherein: the groove bottom of the differential force groove is designed to be of a semi-inclined surface structure, namely the groove bottom takes the middle part as a datum point, and one side of the datum point is inclined towards one end of the groove in a slope manner.

Images