4. Direct Retainers

29/08/2020 2 min
4. Direct Retainers

Listen "4. Direct Retainers"

Episode Synopsis

DIRECT RETAINERSa. Intracoronal (tooth prepared)o Precision attachement- Female on the removable part nd male on the fixed part. o Class III, Class IVo Considering aesthetics- because no claspsb. Extracoronalo More commono Should encircle the tooth at least 180 degree