Whitening
Define teeth bleaching?
Answer: The process by which the teeth are whitened.
Hydrogen peroxide and carbamide peroxide are the oxidizing agents used to bleach teeth. Tooth whitening is a frequently performed cosmetic procedure in the dental office.
a. Both sentences are true.
What is vital tooth bleaching?
Answer: Done on vital teeth
Can be done: chairside light-activated bleaching, OTC whitening strips, gel, paste, home bleaching kit.
What is the active ingredient of a whitening product?
Active ingredient: either be
-Carbamide peroxide
-Hydrogen peroxide
-Sodium perborate
Available in many concentrations: At-home systems contain from 3% to 20% peroxide (carbamide or hydrogen peroxide). In-office systems contain from 15% to 43% peroxide.
Gel base:
-With one or a mixture of propylene glycol, glycerin, and water.
Thickening agent:
-Carbopol
What is non-vital tooth bleaching?
Answer: Done on teeth treated with root canal therapy (endodontically treated teeth).
-Procedure includes multiple appointments
-Gutta-percha is isolated with a base or cement.
-Bleaching agent is placed inside the pulp chamber and canal.
-Bleaching agent needs to be replaced several times to reach the desired shade.
-The tooth is bleached from the inside (internal bleaching).
What are the various methods for teeth bleaching?
Answer:
At home, In office, Laser, otc whitening strips, click pen gel releasing,
What are the indications for vital teeth bleaching?
Answer:
-Vital Teeth with Extrinsic Stains
- Light to moderate intrinsic stain
-Light orange and brown (dark brown and bluish are hard to bleach due to hypocalcified areas being more prominent)
What are the possible complications of teeth bleaching?
1. Thermal Hypersensitivity
-Patient may experience sensitivity to heat and cold after removal of tray and material. The use of sensitive-type toothpaste is recommended.
2. Tissue Irritation
Gingival tissue exposed to excess gel caused by improper tray fit. Remind the patient not to overfill the tray with material and remove any excess after seating the tray.
What are the contraindications of vital teeth bleaching?
Contraindications:
-Caries
-Pulpal necrosis
-Endodontic therapy
-Amalgam stains
-Hypersensitivity
-Allergy
-Lack of compliance
-Pregnant or lactating women
-Children under 18
-Heavy smokers
-Patients taking photosensitive drugs or photosensitive herbal remedies, cracked or hypoplastic enamel, patients with melanoma NO light activated system. Ex: Cipro and Tetracycline
The term “non-vital” may be used to describe a tooth that has what?
Answer: Root Canal Treated tooth (RCT)