After an extraction, the ridge starts to shrink. A widely cited systematic review (Tan et al., 2012) found an average of about 3.8 mm of horizontal and 1.2 mm of vertical bone loss in the first 6 months without intervention. Socket preservation reduces that loss, although a 2019 review in the Journal of Oral and Maxillofacial Research noted that no graft material stops it completely.
For a routine extraction, most general dentists end up choosing between three options: a plain collagen plug, particulate allograft with a membrane, or a graft plug such as OsteoGen® Plugs. Here's how they compare and when each one makes sense.
Quick comparison
| Collagen plug | Allograft + membrane | OsteoGen Plug | |
|---|---|---|---|
| What it is | Resorbable collagen wound dressing | Human donor bone particulate under a barrier membrane | Synthetic calcium apatite graft crystals in a collagen carrier |
| Delivers graft material | No | Yes | Yes |
| Membrane needed | No | Usually | No |
| Steps after extraction | Place and suture | Hydrate, pack, trim and place membrane, suture | Place dry and suture |
| Resorption | Typically 10–14 days | Varies by material | Collagen in weeks, crystals over months |
| Best for | Clot protection when no graft is planned | Larger defects or sockets with missing walls | Intact sockets after atraumatic extraction |
Plain collagen plugs: a dressing, not a graft
Collagen plugs are made to control bleeding, stabilize the clot and protect the wound. Manufacturers market them as wound dressings, and they typically resorb within about two weeks. They're quick and inexpensive, but they don't put any mineral scaffold into the socket. If the goal is to preserve bone for a future implant, a collagen plug alone does little more than support normal healing.
Allograft with a membrane: versatile, but more steps
Particulate allograft (such as FDBA or DFDBA) is the traditional choice for socket grafting and works well in sockets with damaged walls or larger defects. The trade-off is technique and cost. The graft has to be hydrated and packed, then contained with a barrier membrane that's trimmed, tucked and sutured. Loose particles can wash out or migrate if the site isn't well sealed, and the membrane adds material cost and chair time.
OsteoGen Plugs: graft material in plug form
OsteoGen Plugs combine Impladent's OsteoGen bioactive, resorbable calcium apatite crystals with a Type I bovine collagen carrier. You get the handling of a collagen plug with real graft material inside it:
- One step: place the plug dry into the socket and suture over it, with no particulate to pack.
- No membrane: the collagen carrier contains the graft and helps keep soft tissue out of the site.
- Stable fill: the plug absorbs blood and expands slightly, so it stays in place without washout.
- Easy to monitor: radiolucent at placement and radiopaque in about 3–6 months as host bone replaces the graft.
- Synthetic: no human donor tissue in the graft crystals.
Plugs come in Slim (6 × 25 mm), Large (10 × 20 mm) and X-Large (15 × 20 mm). See our OsteoGen Plug technique and healing timeline guide for step-by-step placement.
When an OsteoGen Plug isn't the right choice
OsteoGen Plugs work best when all socket walls are intact after an atraumatic extraction. If the buccal plate is missing or very thin, or the defect is larger than a plug can fill, use particulate graft with a way to contain it. OsteoGen particulate graft covered with an OsteoGen Strip is one option for those sites.
Comparing OsteoGen Plugs with other plug grafts? See our side-by-side plug graft comparison.
Watch: OsteoGen Plugs clinical reliability and bioactive science
This full-length GoldenDent webinar (about 90 minutes) covers the science behind OsteoGen crystals and clinical cases using OsteoGen Plugs for socket preservation.
Frequently asked questions
Is a collagen plug a bone graft?
No. A plain collagen plug is a resorbable wound dressing that protects the clot and controls bleeding. It contains no graft mineral. An OsteoGen Plug combines collagen with OsteoGen calcium apatite graft crystals.
Do OsteoGen Plugs need a membrane?
No. The plug is placed dry and secured with a crisscross suture. The collagen carrier contains the graft, so no separate membrane is needed.
When should I use allograft instead of an OsteoGen Plug?
When the socket has a missing or thin wall, or the defect is larger than a plug can fill. Those sites usually call for particulate graft contained by a membrane or barrier.
How long until I can place an implant after an OsteoGen Plug?
The site is radiolucent at placement and typically becomes radiopaque in about 3–6 months. Implant placement can proceed once the site is fully radiopaque.
Shop OsteoGen
- OsteoGen Plugs: single plugs and boxes of 5, 10 or 25
- OsteoGen Plugs Buy 5 Get 1 Free: our ongoing bulk bundle
- Socket preservation plug grafts compared: how OsteoGen Plugs stack up against other graft plugs
- OsteoGen Strips: mineralized collagen strips for covering particulate, immediate implants and ridge work
- OsteoGen synthetic bone graft particulate: for larger defects
This article is for dental professionals and is general information only. Always follow the manufacturer's instructions for use and your own clinical judgment. OsteoGen® is a registered trademark of Impladent Ltd.
