Osteotomy Bone Spreader Number 4.37 Convex Bayonet 3.7mm - Hu-Friedy - Delynov

What is the Bone-Spreader #4.37 convex bayonet 3.7mm Osteotome?

The Bone-Spreader #4.37 Osteotome is a precision surgical instrument manufactured by Hu-Friedy. It features a convex working end with a diameter of 3.7mm and a bayonet-shaped shaft. This device is specifically designed for oral surgery procedures requiring fine manipulation of bone tissue. As a manual instrument, it allows for direct force transmission for controlled expansion. Its robust structure meets the requirements of the most rigorous clinical environments, ensuring consistent performance during critical phases of implant preparation.

What are the clinical indications for this instrument?

This instrument is primarily indicated for ridge expansion (ridge splitting) and bone condensation. Purchasing a dental surgery osteotome such as this convex model is particularly useful when bone density is insufficient or when the width of the alveolar ridge must be increased to accommodate an implant. Its convex shape is ideal for compacting cancellous bone against the walls of the implant site, thereby improving the primary stability of the implant. It is also used in crestal approach sinus lift procedures to gently push back the sinus floor after an initial osteotomy.

What are the technical characteristics of this osteotome?

The osteotome has a diameter of 3.7mm at its tip, which corresponds to the standards for medium-sized implant sites. The tip geometry is convex, favoring lateral expansion rather than a clean cut, which preserves bone volume. The bayonet configuration is a major technical feature that allows for bypassing anatomical obstacles or adjacent teeth, offering ergonomic access to the posterior areas of the jaw. This specific Hu-Friedy design ensures better axial visibility for the surgeon during manual impaction.

What are the contraindications for the use of this device?

According to information from the manufacturer Hu-Friedy, the use of this instrument is strictly reserved for qualified healthcare professionals. General contraindications include situations where manual bone expansion could compromise the integrity of bone plates that are too thin (risk of uncontrolled cortical fracture). It should not be used on excessively dense bone (Type D1) without adequate prior drilling, as this could lead to frictional overheating or excessive mechanical trauma. The practitioner must refer to the instructions for use to evaluate compatibility with the patient's clinical status.

What are the maintenance and use precautions?

As a Class I instrument, it must be cleaned, disinfected, and sterilized before each use in accordance with the protocols in force in dental surgery practices. It is imperative to check the integrity of the 3.7mm convex tip before any intervention to avoid any transfer of residue or mechanical failure. Purchasing a sinus lift osteotome involves precise handling; excessive force during percussion can cause complications. It is recommended to follow the sterilization cycles recommended by Hu-Friedy to maintain the mechanical properties of the instrument over the long term.

Who is the manufacturer and what standards are met?

The official manufacturer of this device is Hu-Friedy Mfg. Co., LLC, located in Chicago, USA. This product is classified as a Class I medical device according to current regulations. Hu-Friedy is a globally recognized manufacturer for the quality of its dental and surgical instrumentation. Although specific CE marking is not detailed in the source data, the product meets the rigorous manufacturing standards imposed by US and international legislation for reusable surgical instruments. Professionals must imperatively read the instructions before any use to guarantee the safety of care.

State of the art

Surgical medical consumables play a decisive role in operative safety.