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Level of residual monomer released from orthodontic acrylic materials

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dc.contributor.author Ica, RB
dc.contributor.author Ozturk, F
dc.contributor.author Ates, B
dc.contributor.author Malkoc, MA
dc.contributor.author Kelestemur, U
dc.date.accessioned 2022-10-13T12:31:31Z
dc.date.available 2022-10-13T12:31:31Z
dc.date.issued 2014
dc.identifier.uri http://hdl.handle.net/11616/79974
dc.description.abstract Objective: To quantify, with high-pressure liquid chromatography (HPLC), the amount of residual monomer leached from different orthodontic acrylic materials prepared with two different manipulation methods.
dc.description.abstract Materials and Methods: Eighty cylindrical specimens (5 x 25 mm) were divided into eight groups (n = 10). The specimens were prepared with four acrylic materials Orthocryl Neon Blue (Dentaurum), Orthocryl EQ (Dentaurum), Orthoplast (Vertex), and 0-80 (Imicryl) and with two different manipulation methods: doughing and spray-on. HPLC measurements were made at intervals of 2 hours, 6 hours, 1 day, 1 week, and 3 months. One-way analysis of variance (ANOVA) and Tukey's honestly significant difference multiple-comparison test were used to assess the amount of monomer eluted from the various groups. To assess the differences within each group over the various periods, repeated-measures ANOVA and paired t-tests were used.
dc.description.abstract Results: Statistically significant differences were found within the groups in the amount of residual monomer in the specimens at different time intervals (P < .001). HPLC showed statistically significant differences among the groups (P < .05) in the amount of eluted monomer. Evaluation of the manipulation techniques showed that the monomer release rate was higher in the specimens prepared with the doughing method. When the four acrylic materials were compared, the specimens made from Orthoplast (Vertex) showed the highest rate of monomer release with both manipulation techniques.
dc.description.abstract Conclusion: The spray-on method can be recommended to clinicians for the preparation of orthodontic appliances.
dc.description.abstract C1 [Ica, R. Betul] Inonu Univ, Dept Orthodont, Fac Dent, TR-44280 Malatya, Turkey.
dc.description.abstract [Ozturk, Firat] Pamukkale Univ, Dept Orthodont, Fac Dent, Denizli, Turkey.
dc.description.abstract [Ates, Burhan; Kelestemur, Unzile] Inonu Univ, Dept Chem, Fac Sci & Art, TR-44280 Malatya, Turkey.
dc.description.abstract [Malkoc, Meral Arslan] Inonu Univ, Dept Prosthodont, Fac Dent, TR-44280 Malatya, Turkey.
dc.source ANGLE ORTHODONTIST
dc.title Level of residual monomer released from orthodontic acrylic materials


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