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Shear bond strength of metallic brackets bonded with four different composite resins
Romano, Fábio Lourenço; Correr-Sobrinho, Lourenço; Nouer, Darcy Flávio; Correr, Américo Borto; Sinhoreti, Mário Alexandre Coelho; Magnani, Maria Beatriz Borges de Araújo.
  • Romano, Fábio Lourenço; Federal University of Alfenas. Dental School. Alfenas. BR
  • Correr-Sobrinho, Lourenço; State University of Campinas. Piracicaba Dental School. Department of Restorative Dentistry. Piracicaba. BR
  • Nouer, Darcy Flávio; State University of Campinas. Piracicaba Dental School. Department of Pediatric Dentistry. Piracicaba. BR
  • Correr, Américo Borto; State University of Campinas. Piracicaba Dental School. Piracicaba. BR
  • Sinhoreti, Mário Alexandre Coelho; State University of Campinas. Piracicaba Dental School. Department of Restorative Dentistry. Piracicaba. BR
  • Magnani, Maria Beatriz Borges de Araújo; State University of Campinas. Piracicaba Dental School. Department of Pediatric Dentistry. Piracicaba. BR
Braz. j. oral sci ; 6(23): 1457-1461, Oct.-Dec. 2007. tab, graf
Article in English | LILACS, BBO | ID: lil-518093
ABSTRACT
The objective of this study was to assess the shear bond strength of metallic brackets with different types of Concise composites and the Adhesive Remnant Index (ARI). Sixty bovine permanent lower incisors were inserted into PVC tubes and divided into four groups (n = 15) Group 1 û Transbond XT (control) composite; Group 2 û Concise restorative composite; Group 3 û Concise diluted restorative composite (Artun and ZachrissonÆs technique); and Group 4 û Concise Orthodontic composite. After bonding the brackets, the samples were stored in distilled water at 37oC for 24 hours and then submitted to shear strength tests (Instron) at a crosshead speed of 0.5 mm/min. Analysis of variance and TukeyÆs test (5%) were used for statistically analysing the data regarding the shear bond strength results, whereas Kruskal-Wallis test was used for analysing the ARI scores. The shear bond strength mean values (MPa) for Group 1 (12.13) and Group 2 (12.20) were found to be statistically higher (p < .05) than that for Group 3 (8.20). No statistically significant differences were observed (p > .05) between Groups 1, 2, and 4 (9.86) as well as between Groups 3 and 4. Regarding the ARI evaluation, the majority of the fractures involved the bracket/ composite interface.
Subject(s)
Full text: Available Index: LILACS (Americas) Main subject: Dental Bonding / Orthodontic Brackets / Composite Resins / Shear Strength Limits: Animals Language: English Journal: Braz. j. oral sci Journal subject: Dentistry Year: 2007 Type: Article Affiliation country: Brazil Institution/Affiliation country: Federal University of Alfenas/BR / State University of Campinas/BR

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Full text: Available Index: LILACS (Americas) Main subject: Dental Bonding / Orthodontic Brackets / Composite Resins / Shear Strength Limits: Animals Language: English Journal: Braz. j. oral sci Journal subject: Dentistry Year: 2007 Type: Article Affiliation country: Brazil Institution/Affiliation country: Federal University of Alfenas/BR / State University of Campinas/BR