| Basic Description |
Individual implant attachments with nylon inserts |
Implants connected by a bar; denture clips onto bar |
| Retention |
Good, but inserts wear out quicker |
Excellent, more stable long-term |
| Maintenance |
Nylon inserts replaced every 4–6 months |
Clips replaced every 12–18 months |
| Cost |
Lower initial cost |
Higher initial cost (bar fabrication) |
| Hygiene |
Easier to clean (individual implants) |
More challenging (clean under bar) |
| Stability |
Moderate (may rock slightly) |
High (prevents rocking) |
| Recommended for Heavy Biters? |
Not ideal |
Better choice |
| Risk of Relining Denture |
Higher (tissue changes affect fit more) |
Lower (better tissue support) |
| Vertical Space Needed |
Minimal |
More space required |