Why does "lightweight and less abrasive than zirconia" matter clinically?
The headline reason clinicians choose G-CAM over a zirconia bridge is the combination of lower weight and a less abrasive, softer-impact material. ROE describes this as a "softer landing for the patient," and it has two practical implications: greater perceived comfort, and gentler contact at the occlusal interface. The contrast with zirconia, on the axes that matter here:
| Consideration | G-CAM Graphenano | Zirconia |
|---|---|---|
| Weight | Lightweight profile | Heavier |
| Abrasiveness | Much less abrasive | More abrasive |
| Impact feel | Softer landing | Harder |
The less abrasive nature is most relevant when you want to protect what the prosthesis bites against, for example an opposing arch of natural teeth or another restoration. A gentler occlusal material reduces the wear it imposes on the opposing dentition compared with a harder ceramic.
The trade-off is that G-CAM carries a wear rating of 3 out of 5, versus 5 out of 5 for the zirconia options, which is exactly why it is not recommended for heavy bruxers, where a harder, more wear-resistant material is the safer choice. Matching the occlusal material to the patient's parafunction and to the opposing dentition is the key clinical judgment here.
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For immediate chairside support or troubleshooting assistance, contact ROE Dental Laboratory:
- Phone: (216) 663-2233
- Email: info@roedentallab.com