In laser dentistry, two main types of dental lasers are used: hard tissue lasers and soft tissue lasers. Soft tissue lasers are primarily used for procedures involving the gums, such as gum contouring, treating gum disease, and removing canker sores or cold sores. These lasers have a wavelength that is highly absorbed by water and hemoglobin, making them effective for cutting soft tissue while minimizing bleeding and swelling. Hard tissue lasers, on the other hand, are used for procedures involving the teeth and bone, such as removing tooth decay, preparing teeth for dental fillings, or reshaping tooth structure. These lasers have a wavelength that is highly absorbed by water and hydroxyapatite, the main mineral component of teeth and bone, allowing them to effectively cut through these harder tissues. Both types of dental lasers offer significant benefits over traditional methods, including increased precision, reduced discomfort, and faster healing times for patients.