Which instrument is typically used for cutting or trimming bone during dental procedures?

The instrument specifically designed for cutting or trimming bone during dental procedures is the bone rongeurs. Bone rongeurs feature sharp, scissor-like jaws that enable the practitioner to effectively bite and remove small sections of bone. This is particularly important in oral surgery, where bone removal may be necessary, such as in tooth extractions or when preparing the site for implants.

The other instruments mentioned serve different purposes: the dental excavator is primarily used for removing decay from teeth, the bone chisel is designed for shaping bone with precise cutting action, and the dental curette is utilized for scraping or cleaning the tooth surface, especially around gum lines. Each tool has its distinct function, making the bone rongeur the most appropriate choice for the task of cutting or trimming bone.