A method is provided for fixing an adjustment device on a disc brake, particularly a pneumatically actuated disc brake. The system generally comprises a laser source, a pulse modification apparatus including first and second pulse modification elements separated by a separation distance, a positioning element, a measurement device, and a feedback controller. The composite scaffold includes a support structure coated with a discontinuous coating of separate and discrete particles of a ceramic material such as calcium phosphate. The artificial facet joint structure may be carried by an arm. Additionally, the assistance system supports a method for incorporating new informational content and answers to unanswered questions, for example by authorized support persons, that are categorized and stored in the existing system for later reference and use.