Hirschfeld File #3/7 #6 Handle Buccal-Lingual - Hu-Friedy - Delynov

What is the Hu-Friedy Hirschfeld #3/7 file?

The Hirschfeld #3/7 file is a specialized manual instrument for periodontology, manufactured by Hu-Friedy Mfg. Co., LLC. This device consists of a double working part mounted on a #6 handle. Its structure is specifically designed to operate on the bucco-lingual surfaces of the teeth. As an instrument in the INSTRU category, it is designed to meet the requirements of dental surgeons during root preparation phases. This model benefits from the expertise of Hu-Friedy, a manufacturer recognized for the quality of its oral surgery instruments. Its robust design allows for efficient force transmission when removing mineralized deposits.

What are the clinical indications for this instrument?

The Hirschfeld #3/7 bucco-lingual periodontal file is indicated for the treatment of periodontitis and gingivitis requiring mechanical removal of subgingival calculus. In oral surgery and periodontology, it is used to fragment very dense calculus that resists standard curettes. It also allows for smoothing root surfaces and preparing the site for optimal epithelial reattachment. Its use is particularly relevant in difficult-to-access areas where precise scraping action is required on the vestibular and lingual faces. This device is exclusively reserved for professional use by qualified oral health practitioners.

What are the technical characteristics of the Hirschfeld #3/7 file?

This instrument is distinguished by its double-ended technical configuration, referenced #3/7. It has a #6 type handle, offering a diameter suitable for precise handling during planing procedures. The working part is oriented for bucco-lingual access, allowing controlled pressure to be applied to the tooth root. Manufactured by Hu-Friedy, this file meets the manufacturing standards of the Chicago-based brand. It is classified as a Class I medical device according to current regulations. Its specific geometry allows it to reach furcation areas and deep periodontal pockets without unnecessarily damaging the surrounding soft tissues.

What are the contraindications for the use of this file?

According to information provided by the manufacturer Hu-Friedy Mfg. Co., LLC, the use of this instrument is strictly reserved for trained healthcare professionals. Although no specific medical contraindications related to composition are listed in the short technical documentation, the use of this instrument should be avoided if the patient has extremely fragile dental structures or unmanaged root hypersensitivity. Reference should systematically be made to the instructions for use before any intervention to check safety warnings. As with any manual instrument, inappropriate use could lead to trauma to the cementum or alveolar bone.

What are the maintenance and handling precautions?

As a non-resorbable instrument intended for surgery and periodontal care, the Hirschfeld #3/7 file must be cleaned, disinfected, and sterilized before each use, in accordance with hospital protocols and instructions from the manufacturer Hu-Friedy. Being a Class I device, its maintenance must include regular visual inspection of the working parts to detect any wear or dulling of the cutting edges. A dull file loses its clinical effectiveness and may require excessive force, increasing the risk of slipping. The practitioner must ensure compliance with recommended sterilization cycles to preserve the structural integrity of the instrument over the long term.

Who is the manufacturer and what standards are respected?

The Hirschfeld #3/7 file is manufactured by Hu-Friedy Mfg. Co., LLC, located at 3232 N. Rockwell St. Chicago, Il 60618 in the USA. This medical device is classified as Class I, which corresponds to reusable surgical instruments presenting a moderate risk. Hu-Friedy is a globally recognized manufacturer for its compliance with quality standards in the field of dental instrumentation. The product is distributed by Delynov and must be used in accordance with the manufacturer's indications and warnings. It is imperative to carefully read the enclosed notice before any use to guarantee patient safety and compliance with current regulatory requirements.

State of the art

Specialized surgical instrumentation is evolving towards ergonomic designs.