A device and method for reducing overerupted posterior maxillary teeth

Abstract

The application relates to a device and method for reducing overerupted maxillary posterior teeth, which comprises a clasp, a clasp ring, artificial teeth and a base. The device is used for supporting the implant and the natural teeth on the gap side, and the patient can control the occlusal force as the main reducing force, which is a controllable biological force. The resin artificial tooth plane on the reducing device is gradually adjusted to obtain a good reducing effect.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of movable device and method of pressing down overlong posterior teeth, in particular to a kind of movable device and method of pressing down overlong maxillary posterior teeth. BACKGROUND

[0002] After mandibular posterior teeth are lost, maxillary posterior teeth are often significantly drooping with time, and insufficient interarch space often affects the repair of mandibular missing teeth, affects the physiological functions of patients such as mastication, and further leads to the unilateral mastication of patients, facial deviation and physical and mental health.

[0003] For overlong maxillary posterior teeth, two methods are usually used to obtain normal occlusal clearance: one is to inactivate the pulp of the overlong posterior teeth, after perfecting root canal treatment, removing part of the clinical crown, and re-crown repair, the normal occlusal plane is restored, and suitable repair clearance is provided for mandibular implant repair. However, this method reduces the clinical observation height of the overlong maxillary posterior teeth, reduces the strength of the full crown repair, and has a significant impact on the long-term stability of the repair. Another method is to press down the overlong maxillary posterior teeth through orthodontic method, and the conventional orthodontic treatment time is relatively long, there are brackets and arch wires in the mouth, and the device is more; It has a relatively obvious influence on the life and study of adults, and increases the difficulty of oral hygiene maintenance. At present, with the development of implant technology, micro-implant pins are implanted on the buccal and lingual sides of the maxillary posterior teeth, and the overlong posterior teeth are pressed down by the continuous upward traction force of the implant pin support and the rubber band on the tooth surface. The clinical treatment time is significantly shortened, the pressing down efficiency is relatively high, but the treatment needs to implant micro-implant pins, and the traction device is more, which is easy to cause food residues to be retained, and is not conducive to oral hygiene maintenance. If there are patients with osteoporosis, the implant support is easy to fall off and the traction fails. SUMMARY

[0004] The purpose of the present application is to solve the problem of high failure rate of implant support in patients with maxillary osteoporosis, and to provide a kind of movable device and method of pressing down overlong posterior teeth.

[0005] The application discloses a device for lowering upper posterior teeth, which comprises a combined clasp 1, a clasp 2, an artificial tooth part 3 and a base 4. The combined clasp 1 is cast into shape and does not need tooth preparation. In use, the combined clasp 1 is completely attached to the edge ridge of the adjacent teeth on the proximal gap side, and is in the shape of a circular triangle with the tip pointing to the distal end of the gap. The width of the combined clasp 1 is 1 / 3 of the crown width, the length is 1 / 4 of the crown length, and the thickness is about 1.5 mm. The clasp 2 is about 1.0-1.5 mm thick. In use, 2 / 3 of the buccal clasp arm is located on the contour high point line of the abutment, 1 / 3 of the clasp tip is located below the contour high point of the abutment to provide retention, and the lingual clasp arm is located on the contour high point line. The artificial tooth part 3 is a resin artificial tooth without a tip, which fills the position of the natural teeth in the tooth defect. The surface of the artificial tooth part 3 is smooth, the occlusal surface is a plane, and is parallel to the occlusal plane. The height of the artificial tooth part 3 is 1.0-1.5 mm higher than the vertical gingival occlusion distance. The base 4 part transmits support force from the alveolar ridge to the artificial tooth part 3 through the base 4 on the alveolar ridge. In use, the base 4 part is closely attached to the implant healing abutment on the alveolar ridge and the buccal and lingual sides of the alveolar ridge, the buccal base covers the alveolar ridge and extends to the bottom of the vestibular groove, and the lingual side reaches the bottom of the mouth, but does not interfere with the buccal and lingual movements.

[0006] The combined clasp 1 is cast into shape.

[0007] The artificial tooth part 3 is made of light-cured composite resin.

[0008] A method for lowering upper posterior teeth by using the device for lowering upper posterior teeth according to claim 1, which comprises the following steps:

[0009] (1) The lower molar of the jaw is obviously drooping, the implant is implanted to replace the missing teeth in the lower jaw, the bone combination ISQ value is greater than or equal to 80, and the healing abutment is higher than the gum by more than 1.0 mm.

[0010] (2) The device for lowering upper posterior teeth is arranged in the tooth gap.

[0011] (3) According to the lowering amount of the upper posterior teeth, light-cured composite resin is evenly added to the plane of the artificial tooth part 3 of the device for lowering upper posterior teeth to ensure that the occlusal gap is raised by about 1.0-1.5 mm. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 The device for lowering upper posterior teeth

[0013] Figure 2-1 The buccal and lingual surface view of the device for lowering upper posterior teeth

[0014] Figure 2-2 The occlusal surface view of the device for lowering upper posterior teeth

[0015] Figure 2-3 : The tissue surface view of the device for lowering the upper jaw overlong posterior teeth

[0016] Figure 2 -4: The mesial-distal surface view of the device for lowering the upper jaw overlong posterior teeth

[0017] Figure 3 : The method for lowering the upper jaw posterior teeth by using the device

[0018] In the figure:

[0019] 1: The combined clasp

[0020] 2: The clasp ring

[0021] 3: The artificial tooth part

[0022] 4: The base DETAILED DESCRIPTION

[0023] The application will be further described in detail below in combination with the drawings.

[0024] Referring to Figure 1-3 , a device for lowering the upper jaw overlong posterior teeth, comprising a combined clasp 1, a clasp ring 2, an artificial tooth part 3 and a base 4,

[0025] The combined clasp, which does not need to be prepared, is completely fitted with the adjacent tooth proximal interstitial side edge ridge, in the shape of a round triangle with a sharp finger pointing to the distal end of the interstitial space, with a width of 1 / 3 of the tooth crown width and a length of 1 / 4 of the tooth crown length, and a thickness of about 1.5 mm; the clasp ring, with a thickness of about 1.0-1.5 mm, has 2 / 3 of the buccal clasp arm located on the high point line of the abutment shape, with 1 / 3 of the clasp tip located below the high point of the abutment shape for retention, and the lingual clasp arm is located on the high point line of the abutment shape for counter-retention; the resin non-sharp artificial tooth part fills the position of the natural tooth defect in the dentition, with a smooth surface and a flat occlusal surface parallel to the occlusal plane, with a height of 1.0-1.5 mm higher than the vertical gingival contact distance. The height is adjusted accordingly according to the amount of lowering of the upper jaw overlong posterior teeth, ensuring a 1.0-1.5 mm gap between the upper and lower jaws, which can continuously lower the upper jaw overlong posterior teeth; the base part is tightly fitted with the implant healing abutment on the alveolar ridge top and the buccal and lingual sides of the alveolar ridge, helping to retain the clasp, with the buccal side of the base extending to the bottom of the vestibular groove and the lingual side to the oral bottom return line, but not interfering with the buccal and lingual movements, with a certain strength of the base to ensure a thickness of 2.0 mm, and the implant transmits support force to the artificial tooth part through the base on the alveolar ridge top, lowering the overlong upper jaw posterior teeth.

[0026] First implant the implant in the mandibular edentulous area, and install the movable device for pressing down the overlong maxillary posterior teeth with the support of the implant in the mandibular posterior tooth area after the completion of osseointegration, and check that the retention is good. The patient is instructed to wear it by himself, and the continuous occlusal force is used to press down the overlong maxillary posterior teeth. Regular check is made, and the height of the artificial tooth part of the movable device for pressing down the overlong maxillary posterior teeth is gradually increased until the overlong maxillary posterior teeth are pressed down to the maxillary occlusal plane, sufficient space for the restoration of the mandibular posterior teeth is obtained, the final fixed restoration of the mandibular implant denture is completed, good occlusal contact and mandibular movement are ensured, and the physiological functions such as mastication of the patient are recovered, which is more conducive to the recovery of the physical and mental health of the patient.

[0027] The device for pressing down the overlong maxillary posterior teeth is suitable for the case that 1-2 posterior teeth on one side of the mandible are missing, and there are healthy or well-treated natural teeth in front and back, the length of the tooth root in the alveolar bone is greater than or equal to 8.0 mm, the implant stability measurement ISQ value is greater than or equal to 80 after the completion of the implant surgery and the completion of osseointegration for 3 months, and the implant diameter is greater than or equal to 4.0 mm. The method for pressing down the maxillary posterior teeth by using the movable device of the device comprises the following steps:

[0028] Referring to Figure 3-1 The occlusal molars are obviously lowered, the mandibular edentulous area is implanted, and the healing abutment ISQ value is greater than or equal to 80, and the healing abutment is higher than the gum by more than 1.0 mm;

[0029] Referring to Figure 3-2 The movable device for pressing down the overlong maxillary posterior teeth is arranged in the edentulous gap, the proximal edentulous side edge ridge of the combined clasp is completely attached to the adjacent tooth, the clasp ring on the buccal and lingual sides of the adjacent tooth is tightly attached to the tooth surface, the retention is achieved, and the occlusion is raised by about 1.0-1.5 mm;

[0030] Referring to Figure 3-3 The overlong maxillary posterior teeth are gradually pressed down, and the distance between the upper and lower jaws is obviously reduced;

[0031] Referring to Figure 3 -4, according to the amount of the overlong maxillary posterior teeth pressed down, a layer of light-cured composite resin is uniformly added to the plane of the artificial tooth part 3 of the movable device for pressing down the overlong maxillary posterior teeth, so that the occlusal gap of about 1.0-1.5 mm is ensured;

[0032] Referring to Figure 3 -5, the maxillary first molar has been pressed into the normal height position, and the occlusal curve has been corrected;

[0033] Referring to Figure 3 -6, the mandibular first molar has obtained sufficient implant restoration space, and the ideal implant restoration effect is finally achieved.

[0034] The application has the beneficial technical effects that the application is a movable device, is convenient for patients to maintain and clean, and is convenient for doctors to adjust at any time according to the situation. The upper jaw overlong posterior teeth are pressed down, mainly to obtain the implant with good bone combination and the support of the gap side near and far natural healthy teeth, and the patient can control the occlusal force as the main pressing-down force, which is a controllable biological force. The resin artificial tooth plane on the pressing-down device is gradually adjusted to be higher, and the bone of the upper jaw is relatively looser than the bone of the lower jaw, so that a good pressing-down effect can be obtained.

Claims

1. A removable device for depressing excessively long maxillary posterior teeth, comprising an occlusal rest (1), a clasp (2), an artificial tooth portion (3), and a base (4), characterized in that: The occlusal rest (1) does not require tooth preparation; during use, it fits perfectly against the marginal ridge of the adjacent tooth near the nick, forming a round triangle with its tip pointing to the distal end of the nick; the width of the occlusal rest (1) is 1 / 3 of the crown width, the length is 1 / 4 of the crown length, and the thickness is about 1.5 mm. The clasp (2) is about 1.0 to 1.5 mm thick. During use, 2 / 3 of the buccal clasp arm is located on the high point line of the abutment tooth, and 1 / 3 of the clasp tip is located below the high point of the abutment tooth for retention. The lingual clasp arm is located on the high point line of the abutment tooth. The artificial tooth part (3) is a resin coneless artificial tooth that fills the position of the natural tooth in the missing tooth row; the surface of the artificial tooth part (3) is smooth, the occlusal surface is flat and parallel to the occlusal plane, and the height of the artificial tooth part (3) is 1.0 to 1.5 mm higher than the occlusal plane; the artificial tooth part (3) is made of light-cured composite resin; The base (4) portion of the implant transmits support force to the artificial tooth portion (3) through the base (4) on the alveolar ridge crest; during use, the base (4) portion is closely fitted with the alveolar ridge crest implant healing abutment and the buccal and lingual sides of the alveolar ridge, the buccal base covers the alveolar ridge and extends to the bottom of the vestibule, and the lingual base extends to the floor of the mouth fold line, but does not interfere with buccal and lingual movement; The device for depressing excessively long maxillary posterior teeth is a movable device. The device for depressing excessively long maxillary posterior teeth is installed in the edentulous space; The combined support (1) is cast.

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