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Difference Between Extended Snap Rings and Continuous Snap Rings

by:Tronshal     2022-03-13
Extended Snap Ring: Also known as the long arm snap ring, the snap ring arms are in contact with both abutments at the same time. The hard part of the snap ring is placed in the non-undercut area of u200bu200bthe adjacent abutment to act as a splint; while the elastic part extends to the undercut area of u200bu200bthe other adjacent abutment for retention. It is often used for abutments with loose abutments near the gap or with poor crown profiles. Extension snap rings can be cast or bent. Continuous snap ring: placed on more than two remaining teeth, usually made of stainless steel wire. This snap ring has no free arm end. The middle part of the continuous snap ring arm is used to enter the undercut area of u200bu200bthe abutment for retention. The rest of the snap ring is flush with the observation line, and the snap ring body passes through (occlusal) outside. The expansion gap extends to the lingual side and is buried in the base. It is mostly used for the restoration of dentition defects in patients with periodontal disease. It not only repairs missing teeth, but also can be used to make a periodontal splint with a continuous snap ring arm and a lingual base to fix loose teeth.
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