CN107280784A - Wx series brackets and buccal tube - Google Patents

Abstract

The invention is a dental appliance used for orthodontic treatment of first molars and second molars, in particular wx series brackets and buccal tubes. wx series brackets, including the bracket base plate, the bracket base plate is equipped with grooves, bracket wings and positioning grooves in sequence. According to different tooth positions and molar shapes, there are three different compensation angles. θ ₁ is 4 ° ~ 10 °, θ ₂ is -5°～-3°, θ ₃ is 0°; wx series buccal tubes, including buccal tube base plate, buccal tube base plate with buccal tube body and buccal tube groove, buccal tube There are traction hooks on the surface tube body, according to different tooth positions and molar shapes, there are three different compensation angles θ' ₁ is 4°~10°, θ' ₂ is -5°~-3°, θ' ₃ is 0°; the present invention is applicable to more different types of orthodontic patients, effectively reducing or avoiding molar rotation, and establishing a better occlusal relationship.

Description

wx series bracket and buccal tube

technical field

The invention relates to orthodontic materials in medical materials science, which is a dental appliance used for orthodontic treatment of first molars and second molars, specifically wx series brackets and buccal tubes.

Background technique

In modern orthodontics, most of the MBT and ROTH data brackets and buccal tubes are used, which can be applied to most clinical patients. They have the advantages of easy operation and short treatment time, but MBT data and ROTH data are based on Western The normal occlusal data of human beings are designed and improved, and there are differences for oriental races. In clinical work, it is found that some patients with malocclusion who use fixed appliances have molar rotation during orthodontic treatment, which is not conducive to the establishment of a good occlusal relationship between the upper and lower teeth. In 2006, Zeng Xianglong, a scholar of Peking University, researched and developed the straight wire arch appliance Z2 appliance based on the characteristics of Chinese teeth for clinical application and evaluation; although domestic scholars have initially established the straight wire arch data of Chinese people, the existing The data of the straight wire arches are all produced using fixed data, and it is impossible to be completely suitable for various complex and changeable clinical situations. Meeting special types of patients will lead to a series of clinical problems, such as the problem of molar rotation.

Molar rotation will lead to serious problems such as poor occlusal relationship, tongue discomfort, occlusal interference, and occupation of more mesial and distal diameters. To solve the rotation of the molars, methods such as bending the molar control curves are needed in clinical operations, which increases the time of chairside operation, prolongs the clinical treatment time, and significantly increases the foreign body sensation of patients. Therefore, according to different types of molars of patients, molar brackets and buccal tubes with different angles are required.

Contents of the invention

The object of the present invention is to provide a bracket and buccal tube with three types of compensation angles for different tooth shapes and arrangements, which is suitable for orthodontic first molars and second molars of more types of patients.

For realizing above-mentioned purpose of the invention, the technical scheme that the present invention adopts is as follows:

wx series brackets, including the bracket base plate, the bracket base plate is equipped with grooves, bracket wings and positioning grooves in sequence. According to different tooth positions and molar shapes, there are three different compensation angles θ ₁ , θ ₂ , θ ₃ and crown angle α, torque angle β, base plate thickness d; where θ ₁ is 4°~10°, θ ₂ is -5°~-3°, θ ₃ is 0°, α is 6°~13°, β is -30° to -10°, and d is 2 to 3 mm.

Preferably, according to different tooth positions and different molar shapes, the compensation angle θ ₁ is 9.26°, 9.56°, 4.98° or 4.53°; θ ₂ is -3.83°, -4.37°, -4.39° or -4.09° °.

Preferably, the crown angle α is 6.47°, 6.37°, 9.59° or 12.07° according to different tooth positions.

Preferably, according to different tooth positions, the torque angle β is -10.77°, -11.09°, -28.41° or -29.50°.

Preferably, according to different tooth positions, the thickness d of the bottom plate is 2.67mm, 2.53mm, 2.79mm or 2.62mm.

The wx series buccal tubes include the buccal tube bottom plate, the buccal tube body and the groove on the buccal tube bottom plate, and the traction hook on the buccal tube body. There are three different angles according to different tooth positions and molar shapes. Compensation angle θ' ₁ , θ' ₂ , θ' ₃ and crown angle α', torque angle β', floor thickness d'; where θ' ₁ is 4°～10°, θ' ₂ is -5°～ -3°, θ' ₃ is 0°, α' is 6°~13°, β' is -30°~-10°, d' is 2~3mm.

Preferably, according to different tooth positions and different molar shapes, the compensation angle _θ'1 is 9.26°, 9.56°, 4.98° or 4.53°, and _θ'2 is -3.83°, -4.37°, -4.39° or -4.09°.

Preferably, the crown angle α' is 6.47°, 6.37°, 9.59° or 12.07° according to different tooth positions.

Preferably, according to different tooth positions, the torque angle β' is -10.77°, -11.09°, -28.41° or -29.50°.

Preferably, according to different tooth positions, the thickness d' of the bottom plate is 2.67mm, 2.53mm, 2.79mm or 2.62mm.

Compared with the prior art, the present invention has the advantages that: the upper and lower first molars, the second molar brackets and the buccal tubes are respectively preset with different compensation angles in the mesial and distal, and according to different molar arrangements, different Choose different brackets and buccal tubes for the molar shape, which is suitable for more and different types of orthodontic patients, reduces the probability of arch wire bending, shortens the treatment time, effectively reduces or avoids molar rotation, and establishes a better occlusal relationship. A good orthodontic effect can be achieved only by bonding the brackets and buccal tubes in the normal position.

Description of drawings

Fig. 1 is the schematic diagram of bracket structure of the present invention;

Fig. 2 is a schematic diagram of torque angle β;

Figure 3 is a schematic diagram of crown angle α;

Figure 4 is a schematic diagram of the bottom plate d

Fig. 5 is a schematic diagram of bracket compensation angle;

Figure 6 is a schematic view of the structure of the buccal tube of the present invention;

Fig. 7 is a schematic diagram of β';

Figure 8 is a schematic diagram of d';

Fig. 9 is a schematic diagram of α';

Figure 10 is a schematic diagram of the compensation angle of the buccal tube;

Figures 11 to 16 are schematic diagrams of the use of buccal tubes;

In the figure, 1. bracket wing, 2. groove, 3. bracket bottom plate, 4. positioning groove, 5. buccal tube body, 6. buccal tube groove, 7. buccal tube bottom plate, 8. tow hook.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figures 1 to 4, the bracket of the present invention includes a base plate 3, each side of the base plate 3 has a bracket wing 1 with a groove 2, and a positioning groove 4 is arranged on the base plate 3 between the two bracket wings 1 , the bottom plate is placed with a torque angle β of -10°～-30°, the torque angle β is the angle formed by the bottom surface of the groove 2 and the bottom surface of the bottom plate 3, and the bottom plate 3 is a curved surface with two arcs in the vertical and horizontal directions, for sticking Teeth. The positioning groove 4 forms a crown angle α with the vertical line of the side surface of the groove 2, the range is 6°-10°, and the thickness d of the bottom plate 3 is 0-mm. The straight line formed by the bottom plate 3 and the straight line formed by the groove 2 form three different compensation angles, the mesial compensation angle θ ₁ , the distal compensation angle θ ₂ , and the zero compensation angle θ ₃ . The mesial or distal angulation of the teeth ranges from 4° to 10° for θ ₁ , -5° to -3° for θ ₂ , and 0° for θ ₃ .

As shown in Figures 5 to 8, the buccal tube of the present invention includes a buccal tube bottom plate 7, on which there is a buccal tube body 5, and the bottom plate 7 and the buccal tube body 5 together form a buccal tube groove 6 , there is a traction hook 8 on the buccal tube body 5, and the bottom plate 7 is placed with a torque angle β' of -10° to -30°, and the torque angle β' is the angle between the bottom surface of the groove 6 and the bottom surface of the bottom plate 7; The bottom plate 7 is a curved surface with two arc surfaces vertically and horizontally, and is used to fit the tooth surface. The draw hook 8 forms a crown angle α' with the vertical line of the side of the groove 6, and the range is 6°-12°, and the thickness d' of the bottom plate 7 is 0-3mm. The straight line formed by the bottom plate 7 and the straight line formed by the groove 6 form three different compensation angles, the mesial compensation angle θ' ₁ , the distal compensation angle θ' ₂ , and the zero compensation angle θ' ₃ , depending on the molar position and Morphology, the range of angulation in the mesial or distal teeth is 4° to 10° for θ' ₁ , -5° to -3° for θ' ₂ , and 0° for θ' ₃ .

Example 1

As shown in Figure 11, when the patient's maxillary second molars are in the shape shown in Figure 11a, the buccal canal with θ' ₁ of 9.26° is selected, the corresponding angle α' is 6.47°, and the torque angle β' is − 10.77°, the bottom plate thickness d' is 2.67mm.

Example 2

As shown in Figure 12, when the patient's maxillary second molars are in the shape shown in Figure 12a, the buccal canal with θ' ₁ of -3.83° is selected, the corresponding angle α' is 6.47°, and the torque angle β' is -10.77°, base plate thickness d'2.67mm.

Example 3

As shown in Figure 13, when the patient's maxillary second molars are in the shape shown in Figure 13a, the buccal canal with θ' ₁ of 0° is selected, the corresponding angle α' is 6.47°, and the torque angle β' is − 10.77°, base plate thickness d'2.67mm.

Example 4

As shown in Figure 14, when the patient's mandibular second molars are in the shape shown in Figure 14a, the buccal tube with θ' ₁ of 4.98° is selected, the corresponding angle α' is 9.59°, and the torque angle β' is − 28.41°, the bottom plate thickness d' is 2.79mm.

Example 5

As shown in Figure 15, when the patient's mandibular second molars are in the form shown in Figure 15a, the buccal canal with θ' ₁ of -4.39° is selected, the corresponding angle α' is 9.59°, and the torque angle β' is -28.41°, the bottom plate thickness d' is 2.79mm.

Example 6

As shown in Figure 16, when the patient's mandibular second molars are in the shape shown in Figure 16a, the buccal canal with θ' ₁ of 0° is selected, the corresponding angle α' is 9.59°, and the torque angle β' is − 28.41°, the bottom plate thickness d' is 2.79mm.

Claims (10)

1.wx series brackets, including the bracket bottom plate (3), the bracket bottom plate (3) is equipped with grooves (2), bracket wings (1) and positioning grooves (4) in sequence, it is characterized in that, according to different There are three different compensation angles θ ₁ , θ ₂ , θ ₃ and crown angle α, torque angle β, floor thickness d; where θ ₁ is 4°～10°, θ ₂ is - 5°～-3°, θ ₃ is 0°, α is 6°～13°, β is -30°～-10°, d is 2～3mm. 2. The wx series brackets as claimed in claim 1, characterized in that, according to different tooth shapes and different tooth positions, the compensation angle θ ₁ is 9.26°, 9.56°, 4.98° or 4.53°; θ ₂ is -3.83°, -4.37°, -4.39° or -4.09°. 3. The wx series bracket according to claim 1, characterized in that, according to different tooth positions, the crown angle α is 6.47°, 6.37°, 9.59° or 12.07°. 4. The wx series bracket according to claim 1, characterized in that, according to different tooth positions, the torque angle β is -10.77°, -11.09°, -28.41° or -29.50°. 5. The wx series bracket according to claim 1, characterized in that, according to different tooth positions, the thickness d of the bottom plate is 2.67mm, 2.53mm, 2.79mm or 2.62mm. 6.wx series buccal tubes, including buccal tube bottom plate (3), buccal tube body (1) and groove (2) on buccal tube bottom plate (3), buccal tube body (1) There is a traction hook (4), which is characterized in that, according to different tooth positions and molar shapes, there are three different compensation angles θ' ₁ , θ' ₂ , θ' ₃ and crown angle α', torque angle β', Bottom plate thickness d'; where θ' ₁ is 4°~10°, θ' ₂ is -5°~-3°, θ' ₃ is 0°, α' is 6°~13°, β' is -30° ~-10°, d' is 2~3mm. 7. The wx series buccal tube according to claim 6, characterized in that, according to different tooth shapes and different tooth positions, the compensation angle _θ'1 is 9.26°, 9.56°, 4.98° or 4.53°, _θ'2 is -3.83°, -4.37°, -4.39° or -4.09°. 8. The wx series buccal tube according to claim 6, characterized in that, according to different tooth positions, the crown angle α' is 6.47°, 6.37°, 9.59° or 12.07°. 9. The buccal tube according to claim 6, wherein, according to different tooth positions, the torque angle β' is -10.77°, -11.09°, -28.41° or -29.50°. 10. The bracket and buccal tube according to claim 6, characterized in that, according to different tooth positions, the thickness d' of the bottom plate is 2.67mm, 2.53mm, 2.79mm or 2.62mm.