Which of the following suture tips are used for skin closure?

When considering the types of suture tips used for skin closure, cutting needles are specifically designed for this purpose. They feature a sharp edge that allows them to penetrate through the tough layers of skin effectively. Cutting needles are typically triangular in shape, which creates a sharp point that can easily pierce the dermal layers, making them ideal for closing skin incisions or lacerations.

This design is crucial in achieving a clean closure with minimal trauma to the tissue, helping to reduce the risk of scarring and promote better healing. The unique geometry of cutting needles allows them to create a larger hole in the skin without tearing, which is essential for proper suturing techniques.

Other types of needles, such as blunt or round, serve different functions or are better suited for softer tissues, where less cutting force is required. A blunt needle, for instance, is used for delicate tissue like the liver or kidney where it needs to separate fibers rather than cut through them, making it unsuitable for skin closure. A round needle is used for tissues that are more pliable and less dense than skin. Meanwhile, a needle holder is a surgical instrument and not a type of suture tip, so it does not apply to the question about suture types.