O-Ring Abutments
![O-Ring Abutments O-Ring Abutments](https://medimatch.co.uk/wp-content/uploads/2014/11/Biomet3i_OSO20.jpg)
Indications: • Tissue supported overdenture retained by 2 or more implants, • Partial overdentures, • Resilient retention, • Minimum interarch space of 7mm, • Maximum tissue height of 6mm, • Recommended for parallel implants; (see castable O-Ring system for divergent implants), • 850 grams of retention.