Hawley vs Essix: Retainer Selection for Long-Term Stability

Hawley: acrylic baseplate + 0.7mm labial bow + Adams clasps. Adjustable, durable, allows posterior settling. Essix: 0.75-1.0mm PETG clear vacuum-formed, aesthetic but no adjustment capability. Hawley is preferred for cases needing active retention or posterior settling. Essix for aesthetic-conscious patients and simple anterior retention.