While there certainly are benefits to teeth polishing, it can also have some negative consequences. This procedure erodes the outer, fluoride-rich layers of tooth enamel, and it takes three months for them to become restored. This is why current recommendations are that polishing be used selectively, reversing course from it being standard with every cleaning.
Notably, teeth polishing should be attempted only when the discoloration or staining is extrinsic (due to poor dental hygiene, habits, and foods) rather than intrinsic (arising due to internal factors). In addition, several cases may contraindicate teeth polishing or the use of certain polishing pastes, including:
- Acute gingivitis or periodontitis
- Aesthetic restorations (ceramic, composite, and/or porcelain to fix teeth or as implants)
- Allergy to the abrasive or solution being used
- Cavities or problems with enamel
- Exposed inner portions of enamel (dentin and cementum)
- Decalcification (low calcium levels) of teeth
- Newly formed teeth
- Tooth sensitivity
- Respiratory issues