Influence of background color and target tooth shade on shade-matching accuracy

Yıl 2025, Cilt: 14 Sayı: 1, 25 - 31, 27.01.2025

Taygun Sezer , Aygül Yaprak

https://doi.org/10.54617/adoklinikbilimler.1520506

Öz

Aim: This study analysed the effect of background color and target tooth shade on visual shade-matching.
Materials and Method: Twenty prosthodontists performed visual shade-matching on four different backgrounds (green, grey, white, black) using the Vita Classical shade guide. Two identical shade guides were used for shade-matching. One of them was blinded so that the color codes on it could not be identified. Each observer matched all 16 shade tabs using the second shade guide on four different backgrounds. The effects of background and target tooth shade factors on shade-matching accuracy were analyzed with the Chi-square test. A two-proportion z-test with Bonferroni correction was applied to pairwise comparisons. P<0.05 was considered statistically significant.
Results: The background significantly affected shade-matching accuracy (p=0.006). The correct match percentages were 79.7%, 74.7%, 69.7%, and 68.8% on gray, black, green, and white backgrounds, respectively. More accurate matching was achieved on the gray background compared to the green and white backgrounds. The target tooth shade significantly affected shade-matching accuracy (p<0.001). The correct matching rates by target shade tab were obtained as follows: A1(75%), A2(55%), A3(63.8%), A3.5(81.3%), A4(81.3%), B1(96, 3), B2(75%), B3(78.8%), B4(71.3%), C1(63.8%), C2(70%), C3(58.8%), C4(% 86.3), D2(96.3%), D3(45%), D4(73.8%).
Conclusion: Background color and target tooth shade significantly affected visual shade-matching accuracy.

Anahtar Kelimeler

Shade-matching, background, tooth shade, color determination

Etik Beyan

This study was reviewed and approved by the Erciyes University Clinical Research Ethics Committee (Approval number: 2023/823).

Arka plan rengi ve hedef diş renginin renk seçim doğruluğu üzerine etkisi

Öz

Amaç: Bu çalışma, arka plan renginin ve hedef diş renginin görsel renk seçimi üzerindeki etkisini analiz etti.
Gereç ve Yöntem: Yirmi protetik diş tedavisi uzmanı, Vita Classical renk skalasını kullanarak dört farklı arka plan (yeşil, gri, beyaz, siyah) üzerinde görsel renk seçimi gerçekleştirdi. Renk seçimi için iki özdeş renk skalası kullanıldı. Bunlardan birini üzerindeki renk kodları belirlenemeyecek şekilde kapatıldı. Her gözlemci, ikinci renk kılavuzunu kullanarak 16 renk tonunun tamamını dört farklı arka plan üzerinde eşleştirdi. Arka plan ve hedef diş rengi faktörlerinin renk seçim doğruluğu üzerindeki etkileri Ki-kare testi ile analiz edildi. İkili karşılaştırmalar için Bonferroni düzeltmeli iki oran z testi uygulandı. P<0,05 istatistiksel olarak anlamlı kabul edildi.
Bulgular: Arka plan, renk seçim doğruluğunu önemli ölçüde etkiledi (p=0,006). Doğru eşleşme yüzdeleri gri, siyah, yeşil ve beyaz arka planda sırasıyla %79,7, %74,7, %69,7 ve %68,8 idi. Gri arka planda, yeşil ve beyaz arka planlara göre daha doğru eşleştirme elde edildi. Hedef diş rengi renk seçim doğruluğunu önemli ölçüde etkiledi (p<0,001). Hedef renk sekmesine göre doğru eşleşme oranları şu şekilde elde edildi: A1(%75), A2(%55), A3(%63,8), A3,5(%81,3), A4(%81,3), B1(96, 3) ), B2(%75), B3(%78,8), B4(%71,3), C1(%63,8), C2(%70), C3(%58,8), C4(%86,3), D2(%96,3), D3(%45), D4(%73,8).
Sonuç: Arka plan rengi ve hedef diş rengi görsel renk seçim doğruluğunu önemli ölçüde etkiledi.

Anahtar Kelimeler

Renk seçimi, arka plan, diş rengi, renk tespiti

Kaynakça

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