What instrument has a tightening wrench to adjust dental bands?

The instrument that is designed with a tightening wrench to adjust dental bands is the Automatrix. This dental tool is specifically used for holding and securing matrix bands in place during restorative procedures. The tightening wrench feature allows dental professionals to effectively adjust the tension of the band to ensure a snug fit around the tooth, thereby facilitating proper restoration of the tooth structure.

Using the Automatrix is advantageous in situations where a secure matrix band is critical for achieving optimal contact and contour in dental restorations. The ability to tighten the band helps prevent any drift during the placement of restorative materials, leading to improved outcomes for the patient.

In contrast, alveolar hooks are used to assist in various dental procedures mainly during orthodontic applications, while band seaters are used to seat the band on the tooth rather than adjust it. A matrix retainer is part of a system that holds and supports matrix bands but does not possess the adjustable tightening mechanism found in the Automatrix.