Abstract
Interfacial bond strengths of light-activated composites were measured as a function of age using a transverse strength test. Bond strength between layers decreased with the age of the initial layer and reflected the setting curves of the composites. The highly-filled composites exhibited the greatest bond strengths. Uncut surfaces provided a better substrate for bonding than did ground surfaces. Use of a bonding agent on both uncut and ground surfaces improved bond strengths. Mean repair strengths of light-activated composites were similar to those of selfcuring composites. Composites with ground surfaces aged for one wk had mean repair strengths 27% of the cohesive strength without bonding agent and 48% with bonding agent.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1241-1244 |
| Number of pages | 4 |
| Journal | Journal of Dental Research |
| Volume | 63 |
| Issue number | 10 |
| DOIs | |
| State | Published - Oct 1984 |
| Externally published | Yes |
ASJC Scopus subject areas
- Dentistry(all)