Which tool is essential in closing surgical flaps during dental operations?

Sutures are the essential tools used to close surgical flaps during dental operations primarily due to their ability to hold tissue together and facilitate healing. In dental surgery, after incisions are made to access the area needing treatment, it is crucial to secure the incised tissue back into place. Sutures, made from materials designed to be biocompatible and safe for internal use, serve this purpose by holding the tissue layers together, preventing movement, and allowing the healing process to begin properly.

Chisels and bonefiles are specific instruments used to shape or refine hard tissue but do not provide closure of wounds. The pigtail explorer is primarily used for detecting cavities and exploring tooth structure but does not function in the closing of surgical flaps. Therefore, sutures stand out as the critical component in ensuring proper surgical closure and promoting healing in dental procedures.