INDIRECT RETAINER

 Most commonly used in Kennedy class I, II & IV -ie. Distal extension cases
 They have the most tipping tendency and need both tooth + tissue support
 Resistance by preventing lifting off of the distal extension through First order liver principle
(see-saw principles)
 The rest should be fabricated at 90 degrees away and anterior to the fulcrum line
 Should be placed as far as possible from fulcrum line.
 Types: auxillary rest — google (PM/canine)
-- o Lingual plate major connector + indirect retainer
-- o Canine extension from mesial rest