# K023998: Theriridge Block, Bone Graft Substitute

- Pathway: 510(k) (Traditional)
- Applicant: Therics, Inc.
- Decided: Mar 26, 2003 after 113 days
- Product code: LYC (Bone Grafting Material, Synthetic)
- Device class: 2
- Regulation: 21 CFR 872.3930
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
1 later device descends from it; 1 cites it directly.
0 of 2 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. The FDA summary names its predicate without a number.
- (no number) Interpore’s Pro Osteon 200: named in the summary without a submission number

## Most influential descendants
- K070784: Inion Biorestore (2007), 0 descendants of its own

## Indications for use
TheriRidgeTMBlock Bone Graft Substitute is indicated and intended for the augmentation of deficient maxillary and mandibular alveolar ridges.

Source page: https://510kreport.com/device/K023998
Methodology: https://510kreport.com/methodology