Additionally, the Registered Dental Assistant II shall be responsible for chair side assisting, rooming and dismissing patients, set up and breaking down operatory rooms, taking x-rays, ensuring that patients are comfortable and provide with good patient services, and sterilizing dental instruments and equipment. POSITION SUMMARY: The Registered Dental Assistant II shall be responsible for performing all basic registered dental assistant duties such as coronal polishing, fabrication of temporary crowns, temporary filling, impression and pit and fissure sealants.