Influence of adhesive and bonding material on the bond strength of bracket to bovine tooth
Braz. j. oral sci
; 16: e17033, jan.-dez. 2017. ilus
Article
in En
| LILACS, BBO
| ID: biblio-883922
Responsible library:
BR218.1
ABSTRACT
Aim:
To evaluate, in vitro, the effect of adhesive and bonding materials on the shear bond strength (SBS) of metallic brackets bonded to bovine teeth.Methods:
Bovine teeth were embedded with acrylic resin, etched with 35% phosphoric acid for 20 s, rinsed, dried for 20 s and divided into 8 groups (n=20), according to the bonding materials and adhesive Groups 1 and 5 Transbond XT; Groups 2 and 6 Fill Magic; Groups 3 and 7 Biofix; and, Groups 4 and 8 Orthocem. One layer of adhesive 3 M Unitek (Group 1), and one layer of Single Bond Universal Adhesive (Groups 2, 3 and 4) were applied and light-cured with LED for 10 s. Brackets were bonded to the buccal surface with four bonding materials and light-cured with LED for 40 s. SBS was carried out after 24 h and thermocycling (7,000 cycles - 5°/55 °C). Data were submitted to two way ANOVA and Tukey's post hoc test (α=0.05). The Adhesive Remaining Index (ARI) was evaluated at 8×.Results:
The adhesive was effective in increasing the SBS for all bonding materials (p<0.05). Significant difference (p<0.05) on the SBS was observed between bonding materials with or without adhesive. The ARI showed a predominance of scores 0 for all groups.Conclusions:
The adhesive improved significantly the SBS of the brackets to teeth. Different SBS values occurred among the bonding materials. ARI index showed predominance of score 0 for all groups (AU)Key words
Full text:
1
Index:
LILACS
Main subject:
Adhesives
/
Orthodontic Brackets
/
Shear Strength
Limits:
Animals
Language:
En
Journal:
Braz. j. oral sci
Journal subject:
ODONTOLOGIA
Year:
2017
Type:
Article