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Background:This in vitro study aimed to evaluate the effect of brackets’ materials on the distance moved by canine and rotation during sliding.
Materials and methods:Extracted human maxillary canine tooth was used as facsimile to fabricate forty acrylic canine teeth with special mold. These teeth were bonded with 0.018 × 0.030-inch orthodontic bra...
Citations
... The frictional resistance from the contact between orthodontic brackets and archwires is considered the primary problem affecting sliding mechanics 7 . The amount of frictional resistance is higher when using plastic and ceramic brackets than when using metallic brackets 8 . The frequency of tooth brushing and the type of toothpaste used during brushing may affect the surface characteristics of the materials used in dentistry. ...
there has been a trend for using aesthetic orthodontic treatment by many patients recently. The aim of this study was to evaluate the brushing effect of three brands of toothpaste on the frictional resistance of two brands of aesthetic archwires (in wet conditions). in this study, two brands of fully coated aesthetic archwires, Teflon-coated and Epoxy-coated archwires, were utilized in the study. Forty segments from the straight ends of each archwire were cut (total of 80 wires), inserted into ceramic brackets and ligated with the conventional figure "O" elastomeric ligatures (bonded on CNC blocks). Every ten pieces for each type of aesthetic archwire were brushed for one minute daily for thirty days with three types of toothpaste (Ortho. Kin, GUMOrtho and LACALUT White & Repair) and distilled water (except ten pieces for each type of aesthetic archwire were brushed only with distilled water and without toothpaste). These CNC blocks were tested using an Instron Tinius Olsen machine with distilled water. The tests used for statistical analysis were an Independent t-test and an ANOVA test at a 0.05 level of significance. The study showed no significant difference in static and kinetic frictional resistance between the coated archwire and the kinds of toothpaste. The orthodontists can use either Epoxy or Teflon-coated archwires for patients undergoing orthodontic treatment (working stage) who are using either type of toothpaste (Ortho. Kin, GUMOrtho or LACALUT White & Repair) for maintenance of oral hygiene. Keywords: Aesthetic archwires, Friction, Toothpaste
... It has been found that friction was increased with plastic and ceramic brackets in comparison with metallic brackets (3) . Earlier studies evaluated the frictional resistance of metal and aesthetic (ceramic and composite) brackets with metal and aesthetic archwires (4)(5)(6)(7)(8)(9) . ...
Background and objectives: The demand for aesthetic orthodontic materials has increased recently. This study designed to compare the static frictional resistance of Fiber-Reinforced Polymer Composite archwire (FRPC) in comparison with other aesthetic coated archwires. Materials and methods: Four types of 0.018 inch archwires, including three types of aesthetic archwires; FRPC, Teflon coated, Epoxy coated and a conventional Nickel-Titanium archwires, were utilized in this study. Ten pieces from each archwire were obtained by cutting 5cm from the straight portions of the wires. These were subjected to the friction test using Instron Tinius Olsen testing machine. Surface topography of the archwires was examined by stereomicroscope. Statistical analysis was done using one-way ANOVA test and post hoc Tukey HSD test. Results: The highest frictional force was recorded in FRPC followed by Teflon, Epoxy coated and the least for the uncoated archwire with a statistically high significant difference.
Interpretation and Conclusions: FRPC showed higher friction value when used with ceramic brackets compared to other coated and uncoated archwires.
