Space Maintainers Laboratory specializes in the design and construction of orthodontic and orthopedic appliances. The firm provides a variety of products to medical practitioners, including removable appliances, retainers, fixed appliances, bruxism and temporomandibular joint dysfunction splints, functional appliances, mouthguards, snoring appliances, treatment partials, and study models. It is a part of Appliance Therapy Group that is engaged in education, consultation, treatment planning, appliance design and construction, adjustment techniques, products and supplies to the health care industry through various business units. Its Web site offers resources, such as appliance design worksheet, appliance color chart, prescription forms and appliance adjustment videos. Space Maintainers Laboratory is located in Chatsworth, Calif.