Which of the following is NOT a step in sealant placement?

Fluoridation is not a step in the sealant placement process. Sealant placement involves several key steps, including isolation, preparation, and curing.

Isolation is crucial because it ensures that the tooth surface is dry and free from saliva, which is necessary for the sealant to bond effectively to the tooth enamel. Preparation typically involves cleaning the tooth surface and possibly using an etching gel to enhance the bond of the sealant. Curing is the process where the sealant is hardened, either by light activation or through chemical means, securing it in place on the tooth.

Fluoridation, while related to dental health by promoting remineralization and making teeth more resistant to decay, is not part of the sealant placement procedure itself. Therefore, identifying fluoridation as a step not involved in sealant placement is correct, as it does not directly contribute to the application or effectiveness of sealants on teeth.