Cementation errors (moisture contamination / excess cement not removed)
What it is
Two very common cementation failures: 1. Moisture contamination during bonding/cementation (saliva/blood/gingival crevicular fluid or hemostatic agents on tooth/restoration surfaces) → compromises adhesion and seal 2. Residual (unremoved) excess cement, especially subgingivally around implant crowns or deep margins → acts as a plaque-retentive irritant and is strongly associated with peri-implant inflammation/disease
Why it happens
Moisture contamination: • Inadequate isolation (no rubber dam/poor retraction) + sulcular fluid/bleeding at margins • Hemostatic agents contaminating dentin and not being cleaned effectively before resin cementation Residual excess cement: • Cement expressed into the sulcus (common with subgingival margins); complete removal is unpredictable, especially around implants • Using too much cement or not using strategies to minimize cement volume and improve retrievability/cleanup
The full clinical mistake entry includes
- How to avoid it — the prevention protocol
- The clinical tip experienced clinicians use
- The documented reference behind the mistake
More clinical mistakes
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