TY  - JOUR
T1  - Comparison of the Effectiveness of Bleaching Treatment with Activation Using Polywave LED Light, Diode Laser and Er, Cr:YSGG Laser: An in Vitro Study
TT  - Polywave LED Işığı, Diyot Lazer ve Er, Cr:YSGG Lazer Kullanılarak Aktivasyon ile Ağartma Tedavisinin Etkinliğinin Karşılaştırılması: Bir İn Vitro Çalışma
AU  - Altınok Uygun, Latife
AU  - Yılmaz, Cemile
AU  - Gül, Pınar
PY  - 2025
DA  - October
Y2  - 2025
DO  - 10.17567/currresdentsci.1470751
JF  - Current Research in Dental Sciences
JO  - Curr Res Dent Sci.
PB  - Ataturk University
WT  - DergiPark
SN  - 2822-2555
SP  - 312
EP  - 317
VL  - 35
IS  - 4
LA  - en
AB  - Objective: This study aimed to evaluate the efficacy of non-vital bleaching treatments activated by laser systems and polywave LED light.Methods: Forty-eight extracted maxillary incisors were artificially stained using sheep blood and then the initial colour values of the stained teeth were measured and recorded with a spectrophotometer. The teeth were randomly assigned to four groups (n = 12 per group): Group 1 (control) received 30-minute non-vital bleaching treatments with 35% hydrogen peroxide (H₂O₂); Group 2 received 35% H₂O₂ with a diode laser (940 nm); Group 3 received 35% H₂O₂ with an Er,Cr YSGG laser (2780 nm); and Group 4 received 35% H₂O₂ with polywave LED light (480 nm). Spectrophotometric evaluation of color change (ΔE00) was performed on days 1, 3, and 7 post-treatment.Results: Intergroup comparisons showed significantly lower ΔE00 values in Group 1 (control) and Group 4 (H₂O₂ + polywave LED light) compared to Groups 2 (H₂O₂ + diode laser) and 3 (H₂O₂ + Er,CrYSGG laser) across all time points (P < .05). No significant difference in ΔE00 was observed between Groups 2 and 3 at any time point (P > .05).Conclusion: Both the diode laser and Er,CrYSGG laser significantly enhanced the efficacy of non-vital bleaching. Although polywave LED light achieved adequate bleaching results, its activation was less effective than that of laser systems.Keywords: Color change, laser, LED, spectrophotometric analysis, teeth bleaching, nonvital
KW  - Color change
KW  - laser
KW  - LED
KW  - spectrophotometric analysis
KW  - teeth bleaching
KW  - nonvital
N2  - Amaç: Bu in vitro çalışmanın amacı, lazer ve polywave LED ışığı ile aktive edilen non-vital beyazlatma tedavilerinin etkinliğini değerlendirmektir. Yöntemler: Kırk sekiz adet çekilmiş maksiller kesici diş koyun kanı kullanılarak yapay olarak renklendirilmiş ve daha sonra renklenen dişlerin ilk renk değerleri spektrofotometre ile ölçülmüş ve kaydedilmiştir. Dişler rastgele dört gruba ayrılmıştır (n = 12): Grup 1'e (kontrol) %35 hidrojen peroksit (H₂O₂) ile 30 dakikalık vital olmayan beyazlatma uygulanmıştır; Grup 2'ye diyot lazer (940 nm) ile %35 H₂O₂ uygulanmıştır; Grup 3'e Er,CrYSGG lazer (2780 nm) ile %35 H₂O₂; ve Grup 4'e polywave LED ışık (480 nm) ile %35 H₂O₂ verilmiştir. Renk değişiminin (ΔE00) spektrofotometrik değerlendirmesi tedavi sonrası 1, 3 ve 7. günlerde yapılmıştır.Bulgular: Gruplar arası karşılaştırmalar, tüm zaman noktalarında Grup 2 (H₂O₂ + diyot lazer) ve Grup 3 (H₂O₂ + Er,CrYSGG lazer) ile karşılaştırıldığında Grup 1 (kontrol) ve Grup 4'te (H₂O₂ + polidalga LED) önemli ölçüde daha düşük ΔE00 değerleri göstermiştir (P <,05). Grup 2 ve 3 arasında hiçbir zaman noktasında ΔE00 açısından anlamlı bir fark gözlenmemiştir (P > ,05).Sonuç: Hem diyot lazer hem de Er,CrYSGG lazer non-vital beyazlatmanın etkinliğini önemli ölçüde artırmıştır. Polywave LED ışığı yeterli ağartma sonuçları elde etmesine rağmen, aktivasyonu lazer tedavilerinden daha az etkili olmuştur.Anahtar Kelimeler: Renk değişimi, lazer, LED, spektrofotometrik analiz, diş beyazlatma, nonvital
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UR  - https://doi.org/10.17567/currresdentsci.1470751
L1  - https://dergipark.org.tr/en/download/article-file/3873002
ER  -