التفاصيل البيبلوغرافية
| العنوان: |
Evaluation of screw loosening on new abutment screws and after successive tightening |
| المؤلفون: |
Barbosa, Gustavo Seabra, Silva-Neto, João Paulo da, Simamoto-Júnior, Paulo Cezar, Neves, Flávio Domingues das, Mattos, Maria da Gloria Chiarello de, Ribeiro, Ricardo Faria |
| المصدر: |
Brazilian Dental Journal. January 2011 22(1) |
| بيانات النشر: |
Fundação Odontológica de Ribeirão Preto, 2011. |
| سنة النشر: |
2011 |
| مصطلحات موضوعية: |
dental implants, screws loosening, abutment |
| الوصف: |
This study evaluated the loss of the torque applied after use of new screws and after successive tightening. Four infrastructures (IE), using UCLA castable abutment type, were cast in cobalt-chromium alloy and new abutment screws (G1) were used in a first moment. Subsequently, the same abutment screws were used a second time (G2) and more than two times (G3). The values of the torques applied and detorques were measured with a digital torque wrench to obtain the values of initial tightening loss (%). Data were analyzed by ANOVA and Tukey's test (?=0.05). Significant differences were observed between the G1 (50.71% ± 11.36) and G2 (24.01% ± 3.33) (p=0.000) and between G1 (50.71% ± 11.36) and G3 (25.60% ± 4.64) (p=0.000). There was no significant difference between G2 and G3 (p=0.774). Within the limitations of the study, it may be concluded that the percentage of the initial torque loss is lower when screws that already suffered the application of an initial torque were used, remaining stable after application of successive torques. |
| نوع الوثيقة: |
article |
| وصف الملف: |
text/html |
| اللغة: |
English |
| تدمد: |
0103-6440 |
| DOI: |
10.1590/S0103-64402011000100009 |
| URL الوصول: |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402011000100009 |
| Rights: |
info:eu-repo/semantics/openAccess |
| رقم الانضمام: |
edssci.S0103.64402011000100009 |
| قاعدة البيانات: |
SciELO |
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