Hasan Önder GÜMÜŞ, Faruk İzzet UÇAR, Hayriye ŞENTÜRK, Tancan UYSAL

Tooth shade assessment after lingual retainer application: A prospective clinical trial

Amaç: Bu çalışmanın amacı, alt anterior dişlere uygulanan lingual retainer (LR) uygulaması ve 6 aylık takibi süresinde oluşan renk değişiklikleri ve Uluslararası de lEclairage Komisyonunca (CIE) belirlenen L*, a* ve b* renk parametreleri (açıklık, kırmızı/yeşil ve mavi/sarı) üzerine etkisini değerlendirmektir. Gereç ve Yöntem: Sabit ortodontik tedavi görmüş onbeş hasta tedavi sonrasında tüm braketleri çıkartılmış ve temizlik işlemleri yapılmıştır. Ağız içi spektrofotometre (VITA Easyshade® Compact) alt anterior dişlerdeki renk değişikliklerini değerlendirmek için lingual retainer uygulamasından önce (T1) ve sonra (T2) kullanıldı. Üçüncü kayıtlar LR uygulanmasından 6 ay sonra alındı (T3). Renk miktarlarının değerlendirilmesinde CIEin L*, a* ve b* renk sistemi kullanılmış ve renk değişimleri (ΔE) hesaplanmıştır. İstatistiksel değerlendirmede eşleştirilmiş t testi p

Lingual retainer uygulamasının diş rengi üzerine etkisi: Prospektif klinik çalışma

Background: The aim of this study was to evaluate the colour changes and shade parameters L*, a* and b* (lightness, red/green, and blue/yellow) of the Commission Internationale de lEclairage (CIE) for lower anterior teeth after lingual retainer (LR) application and 6-month follow up period. Methods: Fifteen patients were treated with fixed appliances. At the end of active treatment all brackets were debonded and cleaning procedures were performed. The intraoral spectrophotometer (VITA Easyshade® Compact) was used to objectively assess the shade alterations of lower anterior teeth before (T1) and after (T2) lingual retainer application. Third records for shade assessment were taken at 6-month follow up period (T3). Shade quantification was based on the CIEs L*, a* and b* shade system and the corresponding shade differences (ΔE) were calculated. Paired t-test was used for statistical evaluation of these parameters at p<0.05 level. Results: Lingual retainer application was not associated with changes in shade parameters. Although the L*, a* and b* values were not different significantly in all measured types of teeth, only the b* value was statistically different in lower right lateral tooth after LR application. L*, a* and b* were not changed to baseline values (T2-T3) after the six months observation period. ΔE values were not changed clinically acceptable in lower anterior teeth. Conclusions: The shade of lower anterior teeth is not changed in after lingual retainer application. After 6-month follow-up period, the shade of lower anterior teeth with lingual retainer was not changed to baseline values.

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