Foshan Liangya – New Product Launch: Resin Filler

Foshan Liangya – New Product Launch: Resin Filler Delivers Innovative Design, Pioneering a New Trend in Dental Restoration

In the field of dental medical equipment, Foshan Liangya Dental Equipment Co., Ltd. has always taken technological innovation as its core driving force, continuously advancing industry-wide technological upgrades. In 2025, the company officially launched its next-generation resin filler series, which has become a standout product in the field of dental restoration thanks to its ergonomic design and versatile adaptability across multiple clinical scenarios. These new products not only uphold the company’s commitment to "precision, efficiency, and safety," but also redefine the clinical standards for resin filling through optimized structural design and upgraded materials.

I. Technological Breakthrough: Structural Innovation Addresses Clinical Pain Points

Traditional resin fillers often suffer from limitations such as restricted working angles and single-functionality. Particularly in deep cavity restorations of posterior teeth, dentists frequently need to switch tools to perform steps like filling, compaction, and shaping—tasks that not only prolong the procedure but also compromise restoration accuracy. Foshan Liangya’s new product breaks through this bottleneck with a patented design: its core offering, the "Posterior Double-End Resin Filler," features a symmetrical, bidirectional structure. The tool has upper and lower filling tips at both ends of the shaft, arranged in opposite 180-degree orientations, enabling dentists to apply force in two directions simultaneously from a single working position.

The filling head design incorporates bionic principles, featuring a curved transition with a radius of 10–12 millimeters at the connecting section. Meanwhile, the working end boasts an 8–10 millimeter straight structure that precisely matches the cavity’s morphology. This innovative design ensures the tool maintains surface contact with the resin material even when maneuvered at multiple angles, effectively preventing the common issue of inadequate filling caused by angular deviations seen in traditional straight-ended tools. Clinical trials demonstrate that using this tool can reduce the restoration time for Class II posterior cavities by 40%, while improving marginal adaptation to 98.7%—a significant achievement that markedly lowers the risk of secondary caries.

II. Functional Integration: A Single Toolset Covers the Entire Workflow

The new product series breaks through the limitations of traditional tools being limited to single functions, achieving "multi-purpose functionality" through modular design. Take the "Aesthetic Repair Kit" as an example—it includes five fillers of different specifications:

1. **Light-sensitive Blade**: The front end features a flat design for horizontal pressure application on the labial and lingual surfaces of anterior teeth, while the curved tip allows precise shaping of mesio-distal curves. Its narrow, thin blade supports meticulous gingival retraction and filling of wedge-shaped defects.

2. **Cylindrical Double-Ended Filler**: The thick end compacts large volumes of resin, while the thin end refines proximal contact points; scale markings help precisely control cavity depth.

3. **Sickle-shaped Compressor**: The resin is vertically excavated from the end and then compressed laterally. Its dual spherical tips (large sphere φ6mm / small sphere φ3mm) are designed to fit various cavity sizes, enabling both vertical and lateral combined compression.

4. **Probe-type Engraver**: Features a curved tip for carving posterior occlusal pits and fissures, a conical end to refine the cusp ridges, and an elliptical curvature design that enhances precision when working with sharp edges.

5. **Ultra-Fine Groove Refiner**: Features a double-ended, 0.3mm-diameter tapered working tip, specifically designed for polishing and reshaping buccal grooves, lingual grooves, and interproximal spaces.

This integrated functional design eliminates the need for doctors to frequently switch tools, allowing a single set of equipment to handle the entire process—from resin injection and compaction to shaping and polishing.

3. Material Upgrade: Dual Assurance of Durability and Safety

Surface passivation treatment enhances corrosion resistance and supports high-temperature, high-pressure steam sterilization at 134°C.

To meet clinical infection control needs, the tool surfaces undergo electroplating treatment, creating a dense oxide film that effectively prevents the penetration of bodily fluids such as blood and saliva. The individually packaged design, combined with a sterile labeling system, ensures that each tool remains sterile until opened—fully complying with the requirements outlined in the "Technical Guidelines for Disinfection and Sterilization of Dental Instruments."