What method of isolation can be used during sealant placement?

The method of isolation during sealant placement that is particularly effective involves using dry angles and cotton rolls. This technique helps control moisture in the oral environment, which is crucial for the successful application of sealants. Sealants need a clean, dry surface to adhere properly to the tooth structure; moisture can compromise the bond, leading to sealant failure.

Using dry angles allows for the absorption of saliva from the area, while cotton rolls assist in keeping the mucosa dry and can be positioned to provide additional isolation. This combination is effective in creating an optimal field for application.

The other methods mentioned are less comprehensive in providing the necessary isolation required during sealant placement. Rubber dams, while effective for certain procedures, can be cumbersome and may not be practical for every sealant application. Cotton swabs and saliva ejectors do not provide sufficient isolation on their own; they may assist in managing saliva but are not reliable for maintaining a dry field.