Final answer:
The BEST technique to remove moderate to heavy extrinsic stain, especially on the mandibular arch, would be professional dental cleaning or scaling and polishing.
Step-by-step explanation:
The BEST technique to remove moderate to heavy extrinsic stain, especially on the mandibular arch, would be professional dental cleaning or scaling and polishing.
This procedure involves removing stain, plaque, and tartar from the teeth using special dental instruments. It is performed by a dental hygienist or dentist.
During the cleaning, the hygienist or dentist will use scaling instruments to scrape off the stain and tartar. They may also use polishing instruments with a special paste to further remove the stain and make the teeth smooth and shiny.
The client has moderate to heavy extrinsic stain, especially on the mandibular arch. Ultrasonic scaling followed by air polishing would be the BEST technique to remove the stain. Ultrasonic scaling uses high-frequency vibrations to break up and remove the stains, calculus, and plaque efficiently. Air-polishing employs a stream of air, water, and an abrasive such as sodium bicarbonate or glycine powder to eliminate surface stains and plaque while being less abrasive to the tooth enamel than traditional scaling methods. When combined, these techniques provide a comprehensive approach to stain removal, improving oral hygiene without causing excessive wear to the teeth.