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Sains Malaysiana 54(10)(2025): 2499-2507
http://doi.org/10.17576/jsm-2025-5410-13
Chameleon Effect and Colour Stability of Nano-Filled
Resin Composites: An (Kesan Kameleon dan Kestabilan Warna Komposit Resin Berisi Nano: Suatu Kajian in-vitro)
AMANDA CHIONG SWEE YEE1, ETHAN TING SHENG1, SOFYA ZULKIFFLI2,* &
1Faculty
of Dentistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
Received: 18 March 2025/Accepted: 30 July 2025
Abstract
This laboratory experimental study evaluated the
chameleon effect and colour stability of three resin composites: SOLARE Sculpt
(SL), Essentia (ES), and SimpliShade (SS), after
immersion in distilled water, coffee, coke, and turmeric. Twenty class III
restorations (shade A2) were placed on central incisors using the three
materials and assessed for the chameleon effect with a digital colourimeter. To
test colour stability, 120 circular specimens (10 mm diameter, 2 mm thickness)
of each material (n=40) were immersed in distilled water, coke, coffee, and
turmeric for 1, 7, and 30 days. Colour changes were measured using
spectrophotometry. Results showed no significant differences in the chameleon
effect among the materials (p > 0.05). However, colour stability varied
significantly over time and across staining solutions. Turmeric caused the greatest
discolouration, followed by coffee, Coke, and distilled water, with ES
generally more susceptible to staining and SS showing the highest colour change
in turmeric. These findings suggested that while the chameleon effect was
similar across all materials, colour stability varied, with coffee and turmeric
contributing more to staining. Clinicians can use this information to select
materials based on patients’ dietary habits and emphasize the importance of
routine restorative maintenance for long-term aesthetic outcomes.
Keywords: Blending effect; chameleon effect; colour stability;
resin composite; staining
Abstrak
Penyelidikan uji kaji makmal ini menilai kesan kameleon dan kestabilan warna tiga komposit resin: SOLARE
Sculpt (SL), Essentia (ES) dan SimpliShade (SS), selepas rendaman dalam air suling, kopi, kok dan kunyit. Dua puluh pemulihan kelas III (teduh A2) diletakkan pada gigi kacip tengah menggunakan ketiga-tiga bahan tersebut dan dinilai untuk kesan kameleon dengan colourimeter digital. Untuk menguji kestabilan warna, 120 spesimen bulat (diameter 10 mm, ketebalan 2 mm) setiap bahan (n=40) telah direndam dalam air suling, kok, kopi dan kunyit selama 1, 7 dan 30 hari. Perubahan warna diukur menggunakan spektrofotometri. Keputusan menunjukkan tiada perbezaan yang signifikan dalam kesan kameleon antara bahan-bahan yang dikaji (p > 0.05). Namun, kestabilan warna berbeza secara signifikan mengikut masa dan jenis larutan pewarna. Kunyit menyebabkan perubahan warna paling ketara, diikuti oleh kopi, Coke
dan air suling, dengan ES secara umumnya lebih mudah mengalami pewarnaan manakala SS mencatatkan nilai perubahan warna tertinggi dalam kunyit. Penemuan ini mencadangkan bahawa walaupun kesan kameleon adalah serupa pada semua bahan, kestabilan warna berbeza-beza dengan kopi dan kunyit menyumbang lebih banyak kepada pewarnaan. Pakar klinik boleh menggunakan maklumat ini untuk memilih bahan berdasarkan tabiat pemakanan pesakit dan menekankan kepentingan penyelenggaraan pemulihan rutin untuk hasil estetik jangka panjang.
Kata kunci: Kesan campuran; kesan kameleon; kestabilan warna; komposit resin; pewarnaan
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