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Evaluation of Enamel Discoloration Following Different Orthodontic Adhesive Removal Procedure: An in Vitro Study | Abstract

Journal of Research in Medical and Dental Science
eISSN No. 2347-2367 pISSN No. 2347-2545

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Evaluation of Enamel Discoloration Following Different Orthodontic Adhesive Removal Procedure: An in Vitro Study

Author(s): Hasan Muneer Raoof*, Nidhal Hussien Ghaib

Abstract

Aims: This study aimed to compare the effects of different adhesive removal techniques, and the use of Sof-Lex polishing discs on teeth colour stability following fixed orthodontic treatment. Materials and Methods: The sample included 60 human extracted premolars for orthodontic purposes. All teeth were bonded with metal brackets then separated randomly into three categories, each group consisting of twenty teeth according to the adhesive removal procedure. Ten teeth polished with Sof-lex polishing discs and ten teeth not polished with Sof-lex polishing discs were included in each experimental group. This results in six subgroups (n=10). Spectrophotometric color records were obtained using the VITA easyshade® spectrophotometer for all the teeth initially. These were recorded as first measurement (E1). The bond removal procedure specific for each group was conducted, followed by a second measurement for all samples (E2). Then a third measurement after of immersion in tea for 10 minutes every day for 30 days as (E3). The results were statistically analysed using one-way analysis of variance (ANOVA) tests (P ≤ 0.05). Results: the results showed statistically no significant difference among the adhesive removal techniques when compared according to ΔE1, but there was a very highly significant difference among these techniques when compared according to ΔE2. Conclusion: All techniques of adhesive removal showed that there was visible and clinically significant alterations in colour, larger than the value of clinical detection threshold (ΔE > 3.7 units). Less enamel discoloration observed in the groups that include polishing than that without polishing groups.

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