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Transactions: INTERNATIONAL JOURNAL of BIOLOGY and BIOMEDICAL ENGINEERING
Transactions ID Number: 19-845
Full Name: Stoia Adelina Elena
Position: Assistant Professor
Age: ON
Sex: Female
Address: Bulevardul Revolutiei din 1989 Nr. 9
Country: ROMANIA
Tel: +40727857709
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E-mail address: adelinaelenastoia@yahoo.com
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Title of the Paper: Tensile testing, a method used to demonstrate the effect of organic solvents on acrylic teeth denture base resin bond strength
Authors as they appear in the Paper: Adelina Elena Stoia, Cosmin Sinescu, Mircea Pielmusi, Marius Enescu, Anca Tudor, Roxana Otilia Rominu, Mihai Rominu
Email addresses of all the authors: adelinaelenastoia@yahoo.com, minosinescu@yahoo.com,ucsenesuiram@yahoo.com,roxanarominu@yahoo.com, mrominu@hotmail.com
Number of paper pages: 9
Abstract: The evaluation of the artificial acrylic teeth denture base repair resin bond strength in tensile represents the main reason of this study. Large size artificial acrylic molars were used to mille 50 acrylic cylinders. The cylinders were randomly assigned in five experimental groups, ten cylinders each. The bonding areas represented by the flat surfaces of the cylinders were submitted to a different treatment. Group 1: polished (control group), Group 2: polished+methyl methacrylate, Group 3: sandblasting + methyl methacrylate, Group 4: sandblasting+universal repairing adhesive (Clearfil Repair-Kuraray), Group 5: polished+dichlormethane. The sandblasting procedures were realized using 50 µm alumina, 30 seconds, from 10 mm distance. Self-cured denture base repair resin (Duracryl – Spofa Dental) was used for manufacturing the bonding test specimens, according to the ADA specification No. 15. Each specimen was stored for 30 days in distilled water and then tested !
in tensile at a speed of 1 mm/min. The mean values of the tensile bond strength test registered were statistically significant among groups, ranging from 13,5 MPa (group 4) to 35,9 MPa ( group 5). Dichlormethane treatment enhanced bond strength to the artificial teeth, for this reason could be considered as a laboratory and clinical procedure in order to improve the quality of bonding.
Keywords: acrylic teeth, chemical treatment, denture base resin, dicloromethane, tensile strength
EXTENSION of the file: .doc
Special (Invited) Session: Tensile Bond Strength of Acrylic Resin Teeth to Denture Base Repair Resin
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