Soar Instruments manufactures Dental Explorers from high-quality martensitic stainless steel 420 J2, in compliance with ISO 7153-1 for metallic materials used in surgical and dental instruments. The material composition typically includes carbon (0.15–0.40%) and chromium (12.0–14.0%) to provide an optimal balance of hardness, flexibility, and corrosion resistance required for precise diagnostic applications. All incoming raw materials are verified through mill certificates and, where necessary, spectrometric analysis to confirm grade conformity prior to production.
The manufacturing process begins with precision forging or bar stock machining to establish the basic instrument form, followed by CNC machining where required to ensure dimensional accuracy and consistency. The working tips are carefully formed through controlled grinding and profiling operations to achieve the fine, sharp geometry necessary for tactile sensitivity and accurate detection. Handles are shaped and textured through knurling or patterning processes to provide enhanced grip and ergonomic control during clinical use.
Controlled heat treatment processes, including hardening and tempering, are applied to achieve a working-end hardness of approximately 48–54 HRC, ensuring a proper balance between tip sharpness, wear resistance, and flexibility to prevent brittleness or breakage during use. Fine polishing and finishing operations are performed to maintain the integrity of the delicate tips while ensuring smooth surface transitions.
Surface finishing is carried out through mirror polishing or satin finishing according to customer requirements, with controlled surface roughness to enhance cleanability and user comfort. Passivation is performed using nitric or citric acid solutions in accordance with ASTM A967 or ASTM A380 to improve corrosion resistance and remove surface contaminants. Cleaning is conducted using ultrasonic systems, followed by rinsing with deionized water and drying in a controlled environment to ensure complete removal of residues. Laser marking is applied for permanent identification, including company logo, instrument pattern, and batch or lot number to ensure full traceability.
Each Dental Explorer undergoes strict quality control procedures, including 100% visual inspection, dimensional verification, tip sharpness and alignment checks, and functional evaluation to ensure optimal tactile response and durability. The instruments are supplied in a non-sterile condition and are designed to withstand repeated steam sterilization cycles at temperatures up to 134°C, ensuring compatibility with standard hospital reprocessing procedures, including enzymatic cleaning and ultrasonic washing.
Manufacturing and quality management systems comply with ISO 13485 requirements for medical devices. The instruments meet applicable regulatory requirements, including CE marking under EU MDR 2017/745 as Class I reusable surgical instruments and UKCA marking under United Kingdom medical device regulations. Where applicable, compliance with United States FDA requirements (21 CFR Part 820) is maintained. Biocompatibility considerations are aligned with ISO 10993 standards for patient-contact materials. Labeling, packaging, and traceability systems, including batch or lot identification and, where required, Unique Device Identification (UDI), are implemented in accordance with regulatory requirements. Packaging is performed in controlled clean conditions using protective materials such as polybags, pouches, or blister packs, ensuring product integrity during storage and transportation.
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