Importance of ALGN’s Invisalign Palatal Expander System The Invisalign Palatal Expander System is a modern and innovative direct 3D-printed device based on proprietary and patented technology.
2. Palatal complex: ossification of palatoterygoquadrate cartilage (upper jaw) and some dermally derived membrane bones forming the roof of the mouth Membrane bones are bones from ancestral ...
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