Adaptable mouthpiece assembly for tooth cleaning

A method for applying oral care, comprising:

• obtaining an oral care device that includes an adaptable mouthpiece assembly including
• a support plate configured to be inserted in a mouth of a user and having a distal portion and a proximal portion;
• a chain member configured to accommodate a section of teeth and gum of the user and including a plurality of shackles that are arranged successively on the support plate and that are hingeably coupled to each other;
• wherein a posterior shackle is coupled to the support plate via a first fixed pivot in the distal portion of the support plate and an anterior shackle is coupled to the support plate via a movable pivot in the proximal portion of the support plate;
• and
• wherein a configuration of the chain member is adjustable by allowing the plurality of shackles to move freely in a horizontal plane along the support plate between the first fixed pivot and the movable pivot such that the configuration of the chain member adapts to a curvature of a dental arch at the section of teeth and gum to be treated;
• inserting the mouthpiece assembly into the mouth of the user whereby the chain member is in an undefined configuration prior to insertion;
• allowing the posterior shackle to make contact with the section of teeth and gum;
• fitting the mouthpiece assembly to the mouth of the user such that the chain member conforms to the dental arch of the section of teeth and gum to be treated;
• and
• applying an oral care procedure to the section of teeth and gum.