AĞIZ İÇİ TAMİR YÖNTEMLERİNİN RENK AÇISINDAN DEĞERLENDİRİLMESİ

Year 2019, Volume: 29 Issue: 1, 26 - 32, 15.01.2019

Emre Tokar , Serdar Polat

https://doi.org/10.17567/ataunidfd.522592

Abstract

ÖZ

 

Amaç: Çalışmamızın
amacı iki farklı ağız içi porselen tamir seti (APTS) kullanılarak kompozit
rezinle tamir edilen zirkonya restorasyonlarda dört farklı yüzey hazırlık
yönteminin renge olan etkilerinin değerlendirilmesidir.

Gereç ve yöntem: Disk şeklinde (2 x 5 mm) 80 adet zirkonya ve 80 adet zirkonya destekli
porselen örnek hazırlanmıştır. Örneklerin L*a*b* değerleri kaydedilmiş ve iki
farklı APTS (Clearfil Repair ve Ceramic Repair N) için porselen ve zirkonya
örnekler ikiye ayrılmıştır. Bu ana gruplarda 40 örnek dört farklı yüzey
hazırlık işleminin (elmas frezle pürüzlendirme, ağız içi kumlama, uzun ve kısa
atım Er,Cr:YSGG lazer ışınlama) uygulanması için 4 alt gruba (N = 10) daha
ayrılmıştır. APTS’leri ve bu kitlerle uyumlu kompozit rezinler (Clearfil
Majesty Esthetic ve Tetric N Ceram) örnek yüzeylerine tatbik edilmiştir.
Kompozit rezinler her bir zirkonya ve porselen yüzeyine standart bir teflon
kalıp (2 x 2 mm) kullanılarak inkremental teknikle yerleştirilmiştir. Tamir
edilen örnek yüzeylerinde L*a*b* değerleri kaydedilmiş olup, ilgili formül
kullanılarak ΔE değerleri hesaplanmıştır. Başlangıç ve sonuç renk farklılıkları
kaydedilip istatistiksel analiz (tek yönlü varyans analizi) yapılmıştır.  

Bulgular: APTS
ve yüzey hazırlık işlemlerine göre hesaplanan renk farklılıkları klinik olarak
kabul edilebilir değerden (∆E = 5.5) yüksektir. Zirkonya destekli porselen
örneklerde uzun atım lazer ışınlaması ve Clearfil Repair APTS uygulanan grup en
düşük ∆E değerini (∆E = 5.90) göstermiştir. Kısa atım lazer ışınlaması ve
Clearfil Repair APTS uygulandığı zirkonya örneklerin grubu diğer gruplara göre
en yüksek renk değişikliğini (∆E=13.65) sergilemiştir.

Sonuç: Tamir
edilen zirkonya ve zirkonya destekli
porselenlerin ilk renklerine göre renk farklılıkları; tiplerine, kullanılan
yüzey hazırlık yöntemlerine ve uygulanan APTS’lerine bağlı olmaksızın klinik
olarak kabul edilebilir değildir.   

Anahtar
kelimeler: Zirkonyum oksit, dental
porselen, kompozit dental rezin, dental protez tamiri, renk, spektrofotometre.

 

EVALUATION
OF INTRAORAL REPAIR METHODS IN TERMS OF COLOR

ABSTRACT

Aim: The
purpose of this study was to evaluate effect of four different surface
treatment procedures on color alterations of zirconia restorations that was
repaired with composite resin using two different intraoral porcelain repair
systems. 

Materials and
method: 80 zirconia and 80
zirconia-based porcelain veneer were used to prepare disc-shaped specimens (2 x
5 mm). L*a*b* values of specimens were recorded, and the zirconia and the
porcelain specimens were divided into two main group for two different
intraoral porcelain repair systems (Clearfil Repair ve Ceramic Repair N). 40
specimens in that main groups were divided into four subgroup (N = 10) in order
to perform four different surface treatment procedures (surface grinding with
diamond bur, intraoral sandblasting, long pulse and short pulse of Er,Cr:YSGG
laser irradiation). The intraoral porcelain repair kits and composite resins
(Clearfil Majesty Esthetic Tetric N Ceram) that are compatible with the repair
kits were applied to surface of the specimens. Composite resins were built-up
on each zirconia and porcelain surfaces using a standard teflon mold (2 x 2 mm)
and incrementally filled. L*a*b* values of repaired specimens were recorded and
ΔE values were calculated using the formula. Color differences between the
initial and final records were statistically analyzed (1-way ANOVA).  

Results: The color changes which calculated upon surface
treatments and intraoral porcelain repair kits were higher than clinical
acceptability threshold (∆E = 5.5). Zirconia-based porcelain specimens that
were treated long pulse laser irradiation and repaired using Clearfil Repair
intraoral porcelain repair kit group showed lowest ∆E value (∆E = 5.90). Short pulse laser irradiation applied zirconia
specimens that were repaired with Clearfil Repair kit group illustrated highest
color changes (∆E = 13.65) among the tested groups.   

Conclusion: The
color differences of repaired zirconia and zirconia-based porcelain veneer,
regardless of their type, surface treatment method, and applied intraoral
porcelain repair kit, was not clinically acceptable when compared to the
initial shade of the specimens. 

Keywords: Zirconium oxide, dental porcelain, composite dental resin, dental
prosthesis repair, color, spectrophotometry.

Keywords

Zirkonyum oksit, dental porselen, kompozit dental rezin, dental protez tamiri, renk

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