Filling instrument

Abstract

The utility model provides a filling instrument and relates to the technical field of dental instruments. The filling instrument is suitable for repairing defects, close to the root, below the high point of the distal adjacent surface appearance of the last molar of the dentition. The filling instrument comprises a handle and working parts connected to the two ends of the handle. The working part comprises a mounting section, an extension section and a working section which are sequentially connected, the functional surface of the working section is used for being matched with the distal adjacent surface of the last molar of the dentition, the mounting section is embedded into the end part of the handle, an angle alpha is formed between the mounting section and the extension section and is more than or equal to 80 degrees and less than or equal to 170 degrees, and an angle beta is formed between the extension section and the working section and is more than or equal to 55 degrees and less than or equal to 145 degrees. The working part is designed with different lengths and angles according to the defect part, so that an oral clinician can select and replace the working part according to the defect part, the defect can be quickly recovered, the efficiency and accuracy of the oral clinician on related treatment such as tooth form recovery can be improved, and the working efficiency and the working efficiency of the oral clinician can be improved. And the problems of overhanging and micro-leakage of the filling body caused by unclear view are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to dental instrument technical field, specifically, relate to a filling instrument. BACKGROUND

[0002] In dental treatment, the filling of the dental surface generally adopts the filling instrument, but for the defect repair of the last molar distal surface of the dentition, the existing filling instrument has the following shortcomings:

[0003] 1. unable to better fit the dental surface;

[0004] 2. the operation space is limited, and the patient may still not be able to obtain when the mouth is wide open;

[0005] 3. the working length is short, and the defect of the last molar distal surface of the dentition cannot be filled. INVENTION CONTENTS

[0006] The utility model aims at providing a filling instrument which can quickly recover the defect, help to improve the efficiency and accuracy of the oral clinical doctors in the treatment of dental morphology recovery and the like, and solve the problems of filling body overhang and micro leakage caused by unclear vision.

[0007] The embodiment of the utility model is implemented as follows:

[0008] The utility model provides a filling instrument which is suitable for the defect repair of the last molar distal surface of the dentition, and the filling instrument comprises a handle and working parts connected at both ends of the handle, wherein the two working parts are detachably connected at both ends of the handle respectively;

[0009] The working part comprises a mounting segment, an extension segment and a working segment connected in sequence, the functional surface of the working segment is used for matching the last molar distal surface of the dentition, the mounting segment is embedded in the end of the handle, the angle between the mounting segment and the extension segment is alpha, 80 DEG ≤ alpha ≤ 170 DEG, the angle between the extension segment and the working segment is beta, 55 DEG ≤ beta ≤ 145 DEG, the length of the mounting segment protruding from the handle is a, 8mm ≤ a ≤ 12mm, the length of the extension segment is b, 8mm ≤ b ≤ 12mm, and the length of the working segment is c, 5mm ≤ c ≤ 15mm.

[0010] In the optional implementation, 200 DEG ≤ alpha + beta ≤ 250 DEG.

[0011] In the optional implementation, the shape of the working segment is a flat round olive ball type.

[0012] In the optional implementation, the widest part of the working segment is 1mm to 3mm, and gradually narrows from the middle part to the tip; the thickness of the working segment is 0.5mm to 1.5mm.

[0013] In an optional embodiment, an external thread is provided on the mounting section, a threaded hole is provided on the end surface of the handle, and the mounting section is threadedly connected to the handle.

[0014] In an optional embodiment, the inner diameter of the threaded hole is 2 mm to 4 mm.

[0015] In an optional embodiment, the handle includes a grip portion and connecting portions connected to both ends of the grip portion, and the outer surface of the grip portion is provided with threads for increasing friction.

[0016] In an optional embodiment, the cross-section of the grip portion is a centrally symmetrical figure.

[0017] In an optional embodiment, the diameter of the connecting portion gradually increases from one end connected to the grip portion to the other end.

[0018] In an optional embodiment, the diameter of the grip portion is 5 mm, and the maximum diameter of the connecting portion is 6 mm.

[0019] The beneficial effects of the filling device provided by the embodiment of the utility model include:

[0020] 1. The shape and size design of the filling device (including angles and length) is conducive to improving the fit between the working part and the distal proximal surface, ensuring the filling effect, and quickly restoring the defect. It helps to improve the efficiency of oral clinicians in tooth morphology restoration and other related treatments, and solve the problems of overhanging and microleakage of the filling body caused by unclear vision.

[0021] 2. The working part is detachably connected to the end of the handle, which is convenient for replacing the working part with different angles and lengths, further improving the fit between the working part and the distal proximal surface, and ensuring the filling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A schematic structural diagram of a filling device provided in an embodiment of the present utility model;

[0024] Figure 2 Schematic diagram of the working status of the filling device.

[0025] Icon: 1-handle; 2-installation section; 3-extension section; 4-working section. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0031] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0032] Please refer to Figure 1 and Figure 2 This embodiment provides a filling device suitable for repairing the defect near the root below the highest point of the distal proximal surface of the last molar in the dentition.

[0033] The filling device includes a handle 1 and working parts connected to both ends of the handle 1, wherein the two working parts are detachably connected to the two ends of the handle 1; oral clinicians can replace the working parts of different angles and lengths according to the tooth morphology, further improving the fit between the working part and the distal proximal surface, and ensuring the filling effect.

[0034] The working part includes a mounting section 2, an extension section 3 and a working section 4 connected in sequence. The functional surface of the working section 4 is used to match the distal proximal surface of the last molar in the dentition. The mounting section 2 is embedded in the end of the handle 1. The angle between the mounting section 2 and the extension section 3 is α, 80°≤α≤170°, and the angle between the extension section 3 and the working section 4 is β, 55°≤β≤145°; the length of the mounting section 2 extending out of the handle 1 is a, 8mm≤a≤12mm, the length of the extension section 3 is b, 8mm≤b≤12mm, and the length of the working section 4 is c, 5mm≤c≤15mm.

[0035] Preferably, 200° ≤ α + β ≤ 250°. For example, α + β = 225°, and α can be 100°, 120°, or 140°, so β ​​can be 125°, 105°, or 85°, respectively. In practical applications, if the defect location on the tooth is the same, the smaller the crown protrusion, the larger the β can be selected. If the crown protrusion is the same, the closer the defect location on the tooth is to the root, the smaller the β can be selected.

[0036] The working section 4 is shaped like an oblate rugby ball. Its widest point is 1 mm to 3 mm, preferably 2 mm, and it gradually narrows from the middle to the tip, allowing for better shaping of the adjacent surface after positioning the edges. The thickness of the working section 4 is 0.5 mm to 1.5 mm, preferably 1 mm.

[0037] The mounting section 2 is provided with an external thread, and a threaded hole is provided on the end surface of the handle 1, and the mounting section 2 is threadedly connected to the handle 1. The inner diameter of the threaded hole is 2mm~4mm.

[0038] The total length of the handle 1 can be 10 cm. The handle 1 includes a grip portion and a connecting portion connected to both ends of the grip portion. The outer surface of the grip portion is provided with a thread to increase friction. The cross-section of the grip portion is a centrally symmetrical figure, such as a circle, a regular octagon, or a regular hexagon, which can further increase the doctor's friction on the handle 1.

[0039] The diameter of the connecting portion gradually increases from one end connected to the grip portion to the other end, which can increase the force-bearing capacity of the connecting portion. Specifically, the diameter of the grip portion can be 5 mm, and the maximum diameter of the connecting portion can be 6 mm.

[0040] The beneficial effects of the filling device provided by the embodiment of the utility model include:

[0041] 1. The working part of the filling device is designed with different shapes and sizes (including angles and lengths), which is conducive to improving the fit between the working part and the distal proximal surface, ensuring the filling effect, and quickly restoring the defect. It helps to improve the efficiency of oral clinicians in related treatments such as tooth morphology restoration, and solve the problems of overhanging and microleakage of fillings caused by unclear vision.

[0042] 2. The working part is detachably connected to the end of the handle 1, which is convenient for replacing the working part with different angles and lengths, further improving the fit between the working part and the distal proximal surface, and ensuring the filling effect.

[0043] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A filling device suitable for repairing the defect near the root below the high point of the distal proximal surface of the last molar in the dentition, characterized in that: The filling device comprises a handle (1) and working parts connected to both ends of the handle (1), wherein the two working parts are detachably connected to both ends of the handle (1); The working portion comprises a mounting section (2), an extension section (3) and a working section (4) connected in sequence, the functional surface of the working section (4) being used to match the distal proximal surface of the last molar of the dentition, the mounting section (2) being embedded in the end of the handle (1), the angle formed between the mounting section (2) and the extension section (3) being α, 80°≤α≤170°, the angle formed between the extension section (3) and the working section (4) being β, 55°≤β≤145°; the length of the mounting section (2) extending out of the handle (1) being a, 8mm≤a≤12mm, the length of the extension section (3) being b, 8mm≤b≤12mm, and the length of the working section (4) being c, 5mm≤c≤15mm.

2. The filling device according to claim 1, characterized in that 200°≤α+β≤250°。 3. The filling device according to claim 1, characterized in that The working section (4) is in the shape of an oblate rugby ball.

4. The filling device according to claim 3, characterized in that The widest part of the working section (4) is 1 mm to 3 mm, and gradually narrows from the middle to the tip; the thickness of the working section (4) is 0.5 mm to 1.5 mm.

5. The filling device according to claim 1, characterized in that The mounting section (2) is provided with an external thread, the end surface of the handle (1) is provided with a threaded hole, and the mounting section (2) is threadedly connected to the handle (1).

6. The filling device according to claim 5, characterized in that The inner diameter of the threaded hole is 2 mm to 4 mm.

7. The filling device according to claim 1, characterized in that The handle (1) comprises a grip portion and connecting portions connected to both ends of the grip portion, and the outer surface of the grip portion is provided with a thread for increasing friction.

8. The filling device according to claim 7, characterized in that The cross section of the hand grip is a centrally symmetrical figure.

9. The filling device according to claim 7, characterized in that The diameter of the connecting portion gradually increases from one end connected to the grip portion to the other end.

10. The filling device according to claim 7, characterized in that The diameter of the grip portion is 5 mm, and the maximum diameter of the connecting portion is 6 mm.

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