Abstract:
INTRODUCTION:Bracket debonding from the tooth surface is a common problem in fixed orthodontics. The aims of the present study were to assess the bond strength and failure sites in two ways of bonding technique, with metallic and ceramic brackets. MATERIALS AND METHODS:One hundred premolars were assigned to 4 groups of 25 each: Group A, metallic brackets/conventional procedure; Group B, metallic brackets/Transbond XT; Group C, ceramic brackets/conventional procedure; and Group D, ceramic brackets/Transbond XT. Transbond XT composite paste was used for bracket bonding and cured by conventional light-cure device. Specimens were subjected to thermocycling. One week after bonding shearing force was applied to the bracket-tooth interface. Bonding failure site optically examined using a stereomicroscope under 10 × magnifications and scoring was done using the adhesive remnant index (ARI). Data were subjected to analysis of One-way variance, Tukey post hoc, Chi-square and Spearman's tests. RESULTS:Mean bond strength (in MPa) were: group A=9.2, group B=8.5, group C=6.2 and group D=5.7. Bond strength differences between groups A and B, and between C and D were not significant, (p<0.0005). Insignificant difference found in ARI in all groups. CONCLUSION:The bond strengths of metallic brackets were significantly higher than ceramic ones and the self-etching primer produce fewer bonds than the conventional method (clinically acceptable).A positive correlation found between changes in shearing bond strength and ARI.
journal_name
Med Oral Patol Oral Cir Bucaljournal_title
Medicina oral, patologia oral y cirugia bucalauthors
Mirzakouchaki B,Kimyai S,Hydari M,Shahrbaf S,Mirzakouchaki-Boroujeni Pdoi
10.4317/medoral.17024subject
Has Abstractpub_date
2012-01-01 00:00:00pages
e164-70issue
1eissn
1698-4447issn
1698-6946pii
17024journal_volume
17pub_type
杂志文章abstract:AIMS:To evaluate the reliability and reproducibility of calculating the Bolton Index using cone-beam computed tomography (CBCT), and to compare this with measurements obtained using the 2D Digital Method. MATERIAL AND METHODS:Traditional study models were obtained from 50 patients, which were then digitized in order t...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:10.4317/medoral.18069
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journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:10.4317/medoral.20333
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journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 临床试验,杂志文章
doi:10.4317/medoral.17456
更新日期:2012-03-01 00:00:00
abstract:INTRODUCTION:Odontomas are benign odontogenic tumors composed of enamel, dentine, cement and pulp tissue. They are usually clinically asymptomatic, but often associated with tooth eruption disturbances. In exceptional cases the odontoma erupts into the mouth . The present study reports three cases of odontomas erupted ...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章,评审
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journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:10.4317/medoral.16.e552
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journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章,meta分析
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更新日期:2020-09-01 00:00:00
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journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:10.4317/medoral.22969
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journal_title:Medicina oral, patologia oral y cirugia bucal
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journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章,评审
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journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
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更新日期:2012-01-01 00:00:00
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journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:
更新日期:2005-11-01 00:00:00
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journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:
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journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:10.4317/medoral.19567
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journal_title:Medicina oral, patologia oral y cirugia bucal
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doi:
更新日期:2010-05-01 00:00:00
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journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
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journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:10.4317/medoral.22645
更新日期:2018-11-01 00:00:00
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journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:10.4317/medoral.16.e158
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journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章,评审
doi:
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abstract::Leiomyoma, a benign neoplasia arising from smooth muscle is an uncommon neoplasia of the oral cavity. The most common histological subtype in the oral cavity is the vascular one. To supplement information on vascular leiomyoma of the oral cavity (VLOC), we present cases of VLOC describing their clinical, histological,...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章,评审
doi:
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journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章,评审
doi:
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journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:10.4317/medoral.18713
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journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章,评审
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journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章,评审
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journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:10.4317/medoral.15.e61
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journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:10.4317/medoral.17583
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journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章,评审
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journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
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journal_title:Medicina oral, patologia oral y cirugia bucal
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journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:
更新日期:2009-09-01 00:00:00