Preparation cavity instrument contra-angle Number 45S handle Number 9 - Hu-Friedy - Delynov

What is the #45S contra-angle cavity preparation instrument?

The #45S contra-angle cavity preparation instrument is a hand tool designed by Hu-Friedy for conservative dentistry procedures. It consists of a working part angled at 45 degrees and a #9 type handle. This device is specifically developed to allow precise access to difficult areas of the dental cavity where straight instruments cannot intervene effectively. Its rigid structure allows direct transmission of manual force for working on hard dental tissues. As a dental cavity instrument, it meets clinical handling requirements for shaping the walls and internal angles of preparations.

What are the clinical indications for this instrument?

This instrument is indicated for the preparation and finishing of cavities during restorative care. In dental surgery, it is used to regularize the floors and walls of Class I to V cavities. Its manual contra-angle design facilitates work in posterior sectors, allowing precise curettage or layout of carious tissues or preparation margins. It is particularly useful for practitioners seeking superior tactile control during the final adjustment of the contour form or resistance form of the cavity before the placement of restorative material.

What are the technical characteristics of the handle and the active part?

The Hu-Friedy instrument reference #45S is equipped with the number 9 handle, a specific diameter handle promoting a stable grip during meticulous preparation phases. The active part features a contra-angle type angulation, optimized to bypass anatomical obstacles in the mouth. This technical configuration allows for the application of controlled pressure on the walls of the dental cavity. Manufacturing by Hu-Friedy Mfg. Co., LLC guarantees compliance with manual instrumentation standards, ensuring a robust junction between the shank and the working part to prevent any undesirable bending during clinical use.

What are the contraindications for the use of this instrument?

According to data provided by the manufacturer Hu-Friedy, there are no specific medical contraindications listed for this Class I instrument, apart from general contraindications related to restorative dentistry procedures. Use must be limited to the hard tissues of the tooth for which the instrument is designed. Inappropriate use on soft tissues or for excessive leverage functions could damage the instrument or adjacent structures. The practitioner must refer to the instructions for use to verify the suitability of the device with the patient's clinical status and ensure the absence of acute periodontal pathologies prohibiting access to the site.

What are the maintenance and storage precautions?

As a non-resorbable manual instrument, the longevity of the contra-angle cavity preparation instrument strictly depends on compliance with sterilization and cleaning protocols. Although composition details are not specified, this type of Hu-Friedy device requires rigorous cleaning before each autoclave cycle to remove dental debris. It is imperative to follow the manufacturer's instructions regarding disinfection solutions to avoid any corrosion. Storage must be in a dry and sterile environment. Regular visual inspection of the integrity of the #45S active part is recommended to guarantee the effectiveness of cutting or scraping during cavity preparation.

Who is the manufacturer and what standards are respected?

The official manufacturer of this instrument is Hu-Friedy Mfg. Co., LLC, based in Chicago, USA. This product is classified as a Class I medical device. In accordance with regulations, it is exclusively reserved for use by qualified healthcare professionals. The manufacturer emphasizes the importance of reading the instructions carefully before any use. Although CE marking is not specified in the source data, the Class I classification indicates that the device meets the basic safety and performance requirements for non-invasive or short-term invasive manual dental instruments used in dental practices.

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