indirect retainer
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in·di·rect re·tain·er
a part of a removable partial denture that assists the direct retainers in preventing occlusal displacement of the distal extension bases by functioning through lever action on the opposite side of the fulcrum line.
indirect retainer
that part of a removable partial denture that resists movement of a free-end denture base away from its tissue support by means of lever action on the opposite side of the fulcrum line.
in·di·rect re·tain·er
(in-di-rekt rĕ-tānĕr)Part of a removable partial denture that assists the direct retainers in preventing occlusal displacement of distal extension bases by functioning through lever action on the opposite side of the fulcrum line.