A tooth shoulder calibration preparation needle
By designing a preparatory needle for the dental shoulder calibration with multiple structures and abrasive coatings, the problem of difficult to grasp the position and depth during the dental shoulder preparation process is solved, and the precise preparation and aesthetic effect of the dental shoulder is achieved.
Patent Information
- Application Number
- CN202421350348.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-06-13
AI Technical Summary
During the preparation of the dental shoulder, it is difficult for doctors to accurately grasp the position and depth of the shoulder, resulting in gum damage or aesthetic problems.
A preparatory needle for the dental shoulder calibration is designed, including multiple preparatory needles, each of which has a specific structure and abrasive coating. Through the combination of these needles, the preparatory teeth can be accurately prepared.
Accurate preparation of the dental shoulders, avoid gum damage, reduce late gingival inflammation, and improve aesthetic effects.
Smart Images
Figure CN222708417U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oral medical instruments, in particular to a tooth shoulder calibration preparation needle. Background Art
[0002] Aesthetic dental restoration is a measure to change the morphology of teeth and / or periodontal tissues, striving to achieve the greatest degree of coordination between the teeth in terms of beauty and function, so as to optimize the final effect of restoration. For patients who need restoration in the aesthetic area, aesthetic analysis and design are required first. Aesthetic wax-up models, i.e., the target restoration morphology, are made based on the original tooth model of the patient. Then, the tooth (preparation) is prepared based on the morphology of the target restoration, striving to accurately replicate the target restoration as the final restoration. Tooth preparation is one of the most basic operations in oral restoration, among which the preparation of the tooth neck shoulder is the most critical step in tooth preparation operations. The preparation quality of the tooth neck shoulder is an important factor affecting the long-term stability and effectiveness of oral fixed restoration. The morphology and size of the preparation neck shoulder are the key parameters that determine its preparation quality, and the morphology and size of the shoulder are determined by the morphology and size of the needle tip used for tooth preparation in this area. According to existing oral restoration materials and preparation techniques, it is recommended in clinical practice to use a tooth neck shoulder with a 90° fillet or 135° blunt angle and a depth of 0.3mm to 0.7mm.
[0003] At present, the preparation of the tooth shoulder is basically done by the doctor's eyes under direct vision. The disadvantage is that the position and depth of the tooth shoulder are difficult to grasp, especially for inexperienced doctors. It is easy to cause gum damage or aesthetic problems. Utility Model Content
[0004] The utility model aims to provide a tooth shoulder calibration preparation needle, which solves the above-mentioned technical problems.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dental shoulder calibration preparation needle, comprising a first preparation needle, a second preparation needle, a third preparation needle, and a fourth preparation needle, the first preparation needle comprising a first base and a first needle body, the first base being axially connected to the first needle body; the second preparation needle comprising a second base, a second needle body, and a positioning groove grinding ring, the second base being axially connected to the second needle body, the positioning groove grinding ring being fixedly sleeved on the surface of the second needle body; the third preparation needle comprising a third base, a third needle body, an auxiliary positioning ring, and a shoulder grinding ball head, the third base, the third needle body, and the shoulder grinding ball head being axially connected in sequence, the auxiliary positioning ring being fixedly sleeved on the surface of the third needle body; the fourth preparation needle comprising a fourth base and a fourth needle body, the fourth base being axially connected to the fourth needle body.
[0006] Preferably, the surfaces of the first needle body, the positioning groove grinding ring and the shoulder grinding ball head are all provided with a primary abrasive coating, and the surface of the fourth needle body is provided with a secondary abrasive coating, and the particle size of the secondary abrasive coating is greater than that of the primary abrasive coating.
[0007] Preferably, the surfaces of the positioning groove grinding ring and the auxiliary positioning ring are both provided with round chamfers.
[0008] Compared with the related art, the tooth shoulder calibration preparation needle provided by the utility model has the following beneficial effects:
[0009] The utility model provides a tooth shoulder calibration preparation needle, firstly, a first preparation needle is used to remove the protruding part of the tooth surface, and the first-level abrasive coating arranged on the surface of the first needle body is used to grind the protruding part of the tooth, and then a second preparation needle is used to prepare a positioning groove on the crown surface mm above the gingival edge, specifically, the first-level abrasive coating arranged on the surface of the positioning groove grinding ring is used for grinding, and the smooth surface of the second needle body makes it possible for the second needle body to rotate at high speed when the positioning groove grinding ring is performing the positioning groove preparation operation without damaging the gums and the tooth, and a third preparation needle is used to prepare a tooth shoulder flush with the gingival edge, specifically, the surface smoothness is made The sliding auxiliary positioning ring is matched with the positioning groove, and the tooth shoulder is prepared by a shoulder grinding ball head with a first-level abrasive coating. The tooth shoulder of .mm or .mm below the gingival edge can be prepared by replacing the third preparation needle of different specifications, and then the excess tooth is ground off along the positioning groove by the first preparation needle to form an accurate shoulder. Finally, the fourth preparation needle is used to refine and polish the shoulder. Specifically, the shoulder is polished with a second-level abrasive coating with a particle size larger than that of the first-level abrasive coating, which makes the tooth smoother and the positioning and depth determination more accurate, avoids damage to the gums, reduces later gingival inflammation, and improves the aesthetic effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is a schematic diagram of the first preparatory needle structure of the utility model;
[0011] Figure 2 This is a schematic diagram of the second preparatory needle structure of the utility model;
[0012] Figure 3 This is a schematic diagram of the third preparatory needle structure of the utility model;
[0013] Figure 4 It is a schematic diagram of the fourth preliminary needle structure of the utility model.
[0014] In the figure: 1. first preparatory needle, 11. first base, 12. first needle body, 2. second preparatory needle, 21. second base, 22. second needle body, 23. positioning groove grinding ring, 3. third preparatory needle, 31. third base, 32. third needle body, 33. auxiliary positioning ring, 34. shoulder grinding ball head, 4. fourth preparatory needle, 41. fourth base, 42. fourth needle body. DETAILED DESCRIPTION
[0015] See also Figure 1-Figure 4 The utility model provides a technical solution, including a first preparation needle 1, a second preparation needle 2, a third preparation needle 3, and a fourth preparation needle 4. The first preparation needle 1 includes a first base 11 and a first needle body 12, and the first base 11 is axially connected to the first needle body 12; the second preparation needle 2 includes a second base 21, a second needle body 22 and a positioning groove grinding ring 23, the second base 21 is axially connected to the second needle body 22, and the positioning groove grinding ring 23 is fixedly sleeved on the surface of the second needle body 22; the third preparation needle 3 includes a third base 31, a third needle body 32, an auxiliary positioning ring 33 and a shoulder grinding ball head 34, the third base 31, the third needle body 32 and The shoulder grinding ball head 34 is connected in sequence along the axial direction, and the auxiliary positioning ring 33 is fixedly sleeved on the surface of the third needle body 32; the fourth preparation needle 4 includes a fourth base 41 and a fourth needle body 42, and the fourth base 41 is connected to the fourth needle body 42 along the axial direction; the first needle body 12, the positioning groove grinding ring 23, and the shoulder grinding ball head 34 are all provided with a primary abrasive coating on the surface, and the fourth needle body 42 is provided with a secondary abrasive coating on the surface, and the particle size of the secondary abrasive coating is greater than that of the primary abrasive coating; the first preparation needle 1, the second preparation needle 2, the third preparation needle 3 and the fourth preparation needle 4 are respectively installed with the dental mobile phone through the second base 21, the third base 31 and the fourth base 41;
[0016] First, the first preparation needle 1 is used to remove the protruding part of the tooth surface, and the first-level abrasive coating set on the surface of the first needle body 12 is used to grind the protruding part of the tooth. Then, the second preparation needle 2 is used to prepare a positioning groove on the crown surface 3mm above the gingival edge. Specifically, the first-level abrasive coating set on the surface of the positioning groove grinding ring 23 is used for grinding. The smooth surface of the second needle body 22 ensures that when the positioning groove grinding ring 23 is performing the positioning groove preparation operation, the second needle body 22 will not damage the gums and the tooth at high-speed rotation. The third preparation needle 3 is used to prepare a tooth shoulder flush with the gingival edge. Specifically, the smooth surface of the auxiliary positioning ring 33 is placed In line with the positioning groove, the tooth shoulder is prepared by a shoulder grinding ball head 34 with a primary abrasive coating, wherein the tooth shoulder 0.3mm or 0.5mm below the gingival edge can be prepared by replacing the third preparation needle 3 of different specifications, and then the first preparation needle 1 is used to grind off the excess tooth along the positioning groove to form an accurate shoulder, and finally the fourth preparation needle 4 is used to refine and polish the shoulder. Specifically, a secondary abrasive coating with a particle size greater than that of the primary abrasive coating is used to polish the shoulder, so that the tooth is smoother, the positioning and depth are more accurate, and the gums can be avoided from being damaged. Later gingival inflammation can be reduced and the aesthetic effect can be improved.
[0017] The surfaces of the positioning groove grinding ring 23 and the auxiliary positioning ring 33 are both provided with round chamfers, so that the positioning groove grinding ring 23 and the auxiliary positioning ring 33 can reduce damage to the tooth surface when rotating at high speed, and can better protect the tooth.
Claims
1. A tooth shoulder calibration preparation needle, comprising a first preparation needle (1), a second preparation needle (2), a third preparation needle (3), and a fourth preparation needle (4), characterized in that: The first preparation needle (1) comprises a first base (11) and a first needle body (12), wherein the first base (11) is connected to the first needle body (12) along the axial direction; the second preparation needle (2) comprises a second base (21), a second needle body (22) and a positioning groove grinding ring (23), wherein the second base (21) is connected to the second needle body (22) along the axial direction, and the positioning groove grinding ring (23) is fixedly sleeved on the surface of the second needle body (22); the third preparation needle (3) The invention comprises a third base (31), a third needle body (32), an auxiliary positioning ring (33) and a shoulder-polished ball head (34); the third base (31), the third needle body (32) and the shoulder-polished ball head (34) are connected in sequence along the axial direction; the auxiliary positioning ring (33) is fixedly sleeved on the surface of the third needle body (32); the fourth preparatory needle (4) comprises a fourth base (41) and a fourth needle body (42); the fourth base (41) and the fourth needle body (42) are connected along the axial direction.
2. A dental shoulder calibration preparation needle according to claim 1, characterized in that: The surfaces of the first needle body (12), the positioning groove grinding ring (23), and the shoulder grinding ball head (34) are all provided with a primary abrasive coating, and the surface of the fourth needle body (42) is provided with a secondary abrasive coating, and the particle size of the secondary abrasive coating is greater than the particle size of the primary abrasive coating.
3. A dental shoulder calibration preparation needle according to claim 2, characterized in that: The surfaces of the positioning groove grinding ring (23) and the auxiliary positioning ring (33) are both provided with round chamfers.