Forming sheet clamping ring
By designing the head-end contact point of the clamping ring of the forming piece corresponds to the crown and the tail-end contact point corresponds to the neck, the problem of the inability to stabilize the low crown and the dental structure of the tooth in the prior art is solved, and a more stable tooth restoration effect and a reduction in pain.
Patent Information
- Application Number
- CN202422333531.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-09-25
AI Technical Summary
The contact point at the bottom of the clamp foot of the existing forming piece clip is in the middle of the crown, which cannot stabilize the low crown and the dental structure of the tooth, resulting in the forming piece and wedges that can easily move or slide out, affecting the tooth restoration effect.
A forming piece clamping ring is designed. The contact point of the head end of the clamping edge corresponds to the crown and the contact point of the tail end corresponds to the neck, which conforms to the anatomical shape of the low crown and the dental neck narrowing tooth structure. It adopts arc edges and rounded corners to form a specific angle between the clamping head and the bow ring, and uses ni-titanium alloy and plastic materials to ensure stable clamping.
Improves the stability of the forming sheet and wedge, prevents bounce, ensures the stability and effect of teeth repair, reduces pain, and is suitable for multiple uses.
Smart Images
Figure CN223196169U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical instruments, in particular to a forming sheet clamping ring. Background Art
[0002] During tooth restoration, the dentist cleans the infected area and shapes the dental filling material. During this procedure, a forming sheet is first placed on the damaged side of the tooth and adjusted to ensure a tight fit. A wedge is then inserted into the interproximal space between the damaged tooth and the adjacent tooth to stabilize the forming sheet and secure it against the tooth neck. This helps shape the proximal neck of the filling and prevents the dental filling material from digging into the gingival sulcus, forming an overhang and damaging the periodontal tissue. The forming sheet clamp is then opened with dental pliers and placed in the mouth. The contact point of the forming sheet clamp's legs should be positioned between the forming sheet and the wedge, allowing for a tighter fit. This maintains the relative position of the forming sheet and wedge, preventing them from moving or slipping out of the tooth. Current forming sheet clamps have their lowest contact point near the middle of the crown. However, teeth with low crowns and narrow necks often experience this, making the fixing of the forming sheet and wedge unstable and prone to movement or slipping out of the tooth, compromising the restoration's effectiveness. Utility Model Content
[0003] The purpose of the present utility model is to solve the above-mentioned technical problems and provide a forming sheet clamping ring. Compared with the traditional forming clip, the contact point between the forming sheet clamping ring and the lowest part of the forming sheet is designed to be biased downward, which is more in line with the tooth anatomy of low crowns and narrow neck tooth structures, prevents bouncing, and clamps more stably.
[0004] To achieve the above-mentioned purpose, the present invention provides the following solution: The present invention discloses a forming sheet clamping ring, comprising an arch ring and two clamping heads, the two clamping heads being arranged at both ends of the arch ring, a through groove being provided on a side of the clamping head facing the gums, the through groove being used for a wedge to pass from the outside to the clamping surface of the clamping head, the clamping surface being provided with a first concave area and a second concave area respectively arranged on both sides of the through groove, the first concave area being used to fit with the forming sheet provided on the tooth surface of the damaged tooth, the second concave area being used to fit with the tooth surface of the adjacent tooth adjacent to the area to be repaired of the damaged tooth, the first concave area and the second concave area forming a clamping edge in the transition zone on the clamping surface of the clamping head, the clamping edge comprising a head end contact point and a tail end contact point, the head end contact point being used to correspond to the crown position of the damaged tooth, and the tail end contact point being used to correspond to the neck position of the damaged tooth.
[0005] Preferably, the clamping edge is an arc-shaped edge.
[0006] Preferably, the clamping edge is rounded.
[0007] Preferably, the clamping head includes a clamping head section, a bent arm section with a 90-degree angle, and a clamping arm section for the instrument clamp to abut against, the clamping head section and the clamping arm section are respectively arranged at both ends of the bent arm section, the first concave area and the second concave area are located on the clamping head section, and the clamping arm section is connected to the bow ring.
[0008] Preferably, a positioning pile is provided at one end of the clamping arm section away from the bending arm section, and the positioning piles of the two clamping heads are arranged facing each other.
[0009] Preferably, there is an angle between the plane where the clamping edge is located and the plane where the bow ring is located.
[0010] Preferably, the bow ring is a nickel-titanium alloy bow ring.
[0011] Preferably, the clamping head is a plastic head.
[0012] Compared with the prior art, the utility model has achieved the following technical effects:
[0013] In the forming sheet clamping ring of the present invention, the head end contact point of the clamping edge of the clamping head corresponds to the crown of the damaged tooth, and the tail end contact point corresponds to the neck of the damaged tooth, so that the contact point between the forming sheet clamping ring and the lowest part of the forming sheet is lower than that of the traditional forming clip, which is more in line with the dental anatomy of the tooth structure with low crown and narrow neck, prevents bouncing, and clamps more stably. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0015] Figure 1 Schematic diagram of the top view of the forming sheet clamping ring in the embodiment;
[0016] Figure 2 Schematic diagram of the bottom view of the forming sheet clamping ring in the embodiment;
[0017] Figure 3 Schematic diagram of the front view of the forming sheet clamping ring in the embodiment;
[0018] Figure 4 Schematic diagram of the rear view of the forming sheet clamping ring in the embodiment;
[0019] Figure 5 Schematic diagram of the top perspective structure of the forming sheet clamping ring in the embodiment;
[0020] Figure 6 Schematic diagram of the bottom view of the forming sheet clamping ring in the embodiment;
[0021] Figure 7 Schematic diagram of the three-dimensional structure of the forming sheet clamping ring in the embodiment;
[0022] Figure 8 for Figure 4 A partial enlarged view of
[0023] Figure 9 for Figure 5 A partial enlarged view of
[0024] Figure 10 Schematic side view of the structure of the forming sheet clamping ring in the embodiment;
[0025] Figure 11 Schematic diagram of the use principle of the forming sheet clamping ring in the embodiment;
[0026] Figure 12 Schematic diagram of the positional relationship among the clamping edge, the forming sheet and the damaged tooth in the embodiment.
[0027] Explanation of the reference numerals: 1. bow ring; 2. clamping arm section; 3. bent arm section; 4. clamping head section; 5. through slot; 6. first concave area; 7. second concave area; 8. clamping edge; 9. head end contact point; 10. tail end contact point; 11. positioning pile; 12. damaged tooth; 13. adjacent tooth; 14. area to be repaired; 15. forming sheet. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0029] This embodiment provides a forming sheet holding ring, such as Figures 1 to 12As shown, the invention comprises a bow ring 1 and two clamping heads. The two clamping heads are arranged at both ends of the bow ring 1. A through slot 5 is provided on the side of the clamping head facing the gums, allowing a wedge to pass from the outside to the clamping surface of the clamping head. The clamping surface is provided with a first concave area 6 and a second concave area 7, which are located on either side of the through slot 5. The first concave area 6 is designed to mate with a forming sheet 15 provided on the tooth surface of the damaged tooth 12. The second concave area 7 is designed to mate with the tooth surface of an adjacent tooth 13 adjacent to the area to be repaired 14 of the damaged tooth 12. The transition area between the first concave area 6 and the second concave area 7 on the clamping surface of the clamping head forms a clamping edge 8. The clamping edge 8 includes a leading contact point 9 and a trailing contact point 10. The leading contact point 9 corresponds to the crown of the damaged tooth 12, and the trailing contact point 10 is used to correspond to the neck of the damaged tooth 12. Compared with the traditional forming clamping plate design, the lowest contact point of the clamping edge 8 and the forming plate 15 is lower, which is more in line with the dental anatomy of low crowns and narrow necks, preventing bouncing and providing more stable clamping. Preferably, the leading contact point 9 is close to the top of the crown.
[0030] Working principle:
[0031] First, the forming sheet 15 is placed on one side of the area to be repaired 14 of the damaged tooth 12, and its position is adjusted so that it fits tightly against the tooth body; then, the arch ring 1 is stretched to increase the distance between the clamping edges 8 of the two clamping heads, and then the forming sheet 15 is clamped on the damaged tooth 12 by the clamping edges 8 of the two clamping heads; then, the wedge is inserted into the interproximal gap between the damaged tooth 12 and the adjacent tooth 13 through the slot 5 to stabilize the forming sheet 15 and make the forming sheet 15 close to the neck of the tooth; finally, subsequent tooth restoration treatment can be carried out.
[0032] In one embodiment, if Figures 1 to 12 As shown, the clamping edge 8 is an arc-shaped edge, which is more in line with the tooth anatomy of a tooth structure with a low crown and a narrow neck, and can ensure the stability between the forming piece 15 and the damaged tooth 12.
[0033] In one embodiment, if Figures 1 to 12 As shown, the clamping edge 8 is rounded to effectively reduce the pain of clamping.
[0034] In one embodiment, if Figures 1 to 12As shown, the clamping head includes a clamping arm section 2, a curved arm section 3, and a chuck section 4. The curved arm section 3 has a 90-degree angle, and the chuck section 4 and the clamping arm section 2 are located at either end of the curved arm section 3. The clamping arm section 2 is connected to the bow ring 1 for the instrument forceps to abut against. Specifically, the two clamping heads of the instrument forceps abut the clamping arm sections 2 of the two clamping heads, respectively. By expanding the clamping heads to push against the clamping arm section 2, the distance between the two clamping heads can be expanded, thereby expanding the bow ring 1. A first concave area 6 and a second concave area 7 are located on the chuck section 4 to form a clamping edge 8 on the end surface of the chuck section 4 away from the curved arm section 3. The clamping arm section 2, the curved arm section 3, and the chuck section 4 are integrally formed.
[0035] In one embodiment, if Figures 1 to 12 As shown, a positioning post 11 is provided at one end of the clamp arm section 2 away from the bent arm section 3, and the positioning posts 11 of the two clamping heads are arranged facing each other. The positioning posts 11 are arranged to secure the instrument clamps in place when they abut against each other, preventing the instrument clamps from slipping. That is, when the two clamp heads of the instrument clamp abut the clamp arm sections 2 of the two clamping heads, they will simultaneously abut against the positioning posts 11.
[0036] In one embodiment, if Figures 1 to 12 As shown, there is an angle α between the plane of the clamping edge 8 and the plane of the bow ring 1. After the forming sheet clamping ring is clamped in place, an angle β is generated between the bow ring 1 and the gums. This angle β causes the bow ring 1 to tilt, thereby avoiding obstruction from the front teeth, making it easier to enter the gap between the tooth necks and enhancing the clamping effect. Generally, the angle β is set to about 10° to 20°, preferably 15°. The angle β + the angle α is 90°. Therefore, the angle α between the bow ring 1 and the clamping edge 8 should be set to 70° to 80°, preferably 75°, to optimize the design of the forming sheet clamping ring angle.
[0037] In one embodiment, if Figures 1 to 12 As shown, the bow ring 1 is a nickel-titanium alloy bow ring with a circular cross-section. The bow ring 1 has a soft clamping force, stable performance, and is not easy to break.
[0038] In one embodiment, if Figures 1 to 12 As shown, the clamping head is a plastic head made of a relatively hard plastic such as PA or PEEK. It is wear-resistant, corrosion-resistant, and autoclavable, making it reusable. The clamping arm section 2, the bending arm section 3, and the clamping head section 4 are integrally injection-molded, with the clamping arm section 2 being injection-molded around the end of the bow ring 1.
[0039] In one embodiment, if Figures 1 to 12 As shown, the two clamping heads are symmetrically arranged at both ends of the bow ring 1.
[0040] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.
Claims
1. A forming sheet clamping ring, characterized in that: It includes a bow ring and two clamping heads, the two clamping heads are arranged at both ends of the bow ring, and a through groove is provided on the side of the clamping head facing the gums, and the through groove is for the wedge to pass from the outside to the clamping surface of the clamping head, and the clamping surface is provided with a first concave area and a second concave area respectively arranged on both sides of the through groove, the first concave area is used to fit with the forming piece provided on the tooth surface of the damaged tooth, and the second concave area is used to fit with the tooth surface of the adjacent tooth adjacent to the area to be repaired of the damaged tooth, and the first concave area and the second concave area form a clamping edge in the transition area on the clamping surface of the clamping head, and the clamping edge includes a head end contact point and a tail end contact point, the head end contact point is used to correspond to the crown position of the damaged tooth, and the tail end contact point is used to correspond to the neck position of the damaged tooth.
2. A forming sheet clamping ring according to claim 1, characterized in that: The clamping edge is an arc-shaped edge.
3. A forming sheet clamping ring according to claim 2, characterized in that: The clamping edge is rounded.
4. A forming sheet clamping ring according to claim 1, characterized in that: The clamping head includes a clamping head section, a bent arm section with a 90-degree angle, and a clamping arm section for the instrument clamp to abut against. The clamping head section and the clamping arm section are respectively arranged at the two ends of the bent arm section. The first concave area and the second concave area are located on the clamping head section, and the clamping arm section is connected to the bow ring.
5. A forming sheet holding ring according to claim 4, characterized in that: A positioning pile is provided at one end of the clamping arm section away from the bending arm section, and the positioning piles of the two clamping heads are arranged facing each other.
6. A forming sheet holding ring according to claim 1, characterized in that: An angle is formed between the plane where the clamping edge is located and the plane where the bow ring is located.
7. A forming sheet holding ring according to any one of claims 1 to 6, characterized in that: The bow ring is a nickel-titanium alloy bow ring.
8. A forming sheet holding ring according to claim 7, characterized in that: The clamping head is a plastic head.