An evaluation and comparison of orthodontic bracket bond strengths achieved with self-etching primer
| Autor: | Giseon Heo, Helen S.I Grubisa, Kenneth E. Glover, Don Raboud, Paul W. Major |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Dental Stress Analysis
Materials science Orthodontic Brackets Dentistry Orthodontics engineering.material chemistry.chemical_compound stomatognathic system Acid Etching Dental Materials Testing Transbond XT Humans Phosphoric Acids Dental Enamel Phosphoric acid Primer (paint) Observer Variation Enamel paint Bond strength business.industry technology industry and agriculture Dental Bonding Shear bond Resin Cements Orthodontic brackets Self etch chemistry visual_art visual_art.visual_art_medium engineering business Shear Strength Nuclear chemistry |
| Zdroj: | American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics. 126(2) |
| ISSN: | 0889-5406 |
| Popis: | The bonding of orthodontic brackets to enamel is a multistep process. To simplify bonding and decrease chair time, Transbond Plus Self-Etching Primer (3M Unitek, Monrovia, Calif) has been introduced; the primer combines the etching, rinsing, and priming steps. This in vitro study evaluated the shear bond strengths and interoperator variability of self-etching primer, as compared with conventional phosphoric acid etching with 2 common orthodontic resins. A total of 214 teeth were bonded, according to the following protocols: group A: self-etching primer plus Transbond XT light-cured resin (3M Unitek); group B: 35% phosphoric acid (15 seconds) plus Transbond XT resin; and group C: 37% phosphoric acid (15 seconds) plus Enlight bonding resin (Ormco, Glendora, Calif). Significantly higher bond strengths were seen in group B than in group A (P =.004) and group C (P =.002). The mean shear bond strengths of group A were not significantly different from those of group C (P =.99). When 3 orthodontists bonded a total of 60 premolars using the protocols of groups A and B, significant differences in shear bond strengths and strength ranking were found. The mean values they obtained using the self-etching primer were not significantly different, but significant differences in mean values were found between operators when the phosphoric acid-etching technique was used. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect