Lasers can be used for which of the following?

• A. Remove caries, composites, GI, prepare for fissure sealing
• B. For heavy tooth whitening
• C. Only for soft tissue surgery
• D. They cannot be used for bonding

Answer: (A)

Lasers offer versatile intraoral uses by interacting with both hard and soft tissues to remove, modify, or prepare surfaces. The statement that lasers can remove caries, remove restorative materials like composites or glass ionomer, and prepare enamel for fissure sealing captures a broad range of hard-tissue applications. Lasers can ablate decayed dentin, aid in removing old restorations, and roughen or clean enamel to improve bonding for fissure sealants, depending on the laser wavelength and settings used. This combination reflects the practical, multi-purpose role lasers play in conservative dentistry.

Other options bother some limitations or inaccuracies: lasers aren’t limited to soft tissue surgery, since they are used for hard tissue procedures as well; while they can be involved in whitening protocols, that isn’t their primary or most universal use; and they can contribute to bonding by modifying the surface, so the statement that they cannot be used for bonding isn’t correct.