Influence of different self-etching primers on the bond strength of orthodontic lingual buttons
| Autor: | Rogelio J. Scougall-Vilchis, Kohji Yamamoto, Seitaro Saku, Hirotomo Kotake |
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| Rok vydání: | 2010 |
| Předmět: |
Dental Stress Analysis
Group ii Acrylic Resins Dentistry Orthodontics Dental bonding stomatognathic system Acid Etching Dental Orthodontic Appliances Adhesive remnant index Materials Testing Humans Enamel paint Chemistry Bond strength business.industry Dental Bonding Resin Cements stomatognathic diseases Self etch visual_art Tooth movement visual_art.visual_art_medium business Shear Strength |
| Zdroj: | European journal of orthodontics. 32(5) |
| ISSN: | 1460-2210 |
| Popis: | SUMMARY The aim of this study was to evaluate the influence of six self-etching primers (SEPs) on the shear/ peel bond strength (SPBS) of orthodontic lingual buttons. A total of 150 extracted human premolars were randomly divided into six equal groups. In all groups, the lingual buttons were bonded with BeautyOrtho Bond™ and the enamel was conditioned with the following—group I (Control): Primers A & B™; group II: Transbond Plus SEP™; group III: Clearfil Mega Bond FA™; group IV: AdheSE™; group V: Peak SE & Peak LC Bond™; and group VI: Bond Force™. The teeth were stored at 37°C for 24 hours and the SPBS was tested (0.5 mm/minute). The results were calculated in mega pascals (MPa) and statistically analysed [mean, standard deviation, Scheffe, analysis of variance (P < 0.05)]. The adhesive remnant index (ARI) was also evaluated and statistically analysed with a chi-square test. All groups demonstrated higher SPBS than the force suggested as necessary to accomplish orthodontic tooth movement, except group IV (7.7 ± 1.7 MPa), which showed a significantly lower value than groups I (10.7 ± 2.4 MPa), II (11.3 ± 3.1 MPa), and V (10.9 ± 2.8 MPa). The values of groups III (9.9 ± 1.6 MPa) and VI (10.5 ± 1.6 MPa) were comparable with those of groups I and V. Significant differences ( P < 0.05) were found among the groups in ARI scores. The SPBS values of all groups could be clinically acceptable and lingual buttons might be successfully bonded with any of these SEPs except AdheSE™ since that conditioner significantly influenced bond strength. As the SPBS was lower in all groups than the value at which enamel fractures have been found, a sound enamel surface might be left after removal of lingual buttons. |
| Databáze: | OpenAIRE |
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