Final answer:
The incorrect statement about preparing a band for cementation is wiping attachments with wax or Chapstick, as it could interfere with the adhesion process.
Step-by-step explanation:
The incorrect statement about preparing a band for cementation is: Wipe attachments with wax or Chapstick. This action is not recommended as it could potentially interfere with the cement's ability to properly adhere to the tooth and the band.
When preparing a band for cementation, the correct procedure includes placing the band with the occlusal surface (the part of the band that comes in contact with the upper teeth during biting) down on masking tape, which helps in keeping the band stable while applying the cement. Placing the band gingival surface (the part of the band closest to the gums) down on masking tape is also a technique that can be used depending on the practitioner's preference. The inner surface of the band should be filled completely with cement to ensure proper adhesion and to prevent voids that could lead to future dental issues such as decay or plaque accumulation.