Turkiye Klinikleri Journal of Dental Sciences

.: ORIGINAL RESEARCH
Üç Farklı Ağız Dışı Tarayıcının Doğruluğunun İn Vitro Olarak Karşılaştırılması
In Vitro Comparison of Trueness of Three Extraoral Scanners
Çağlar BİLMENOĞLUa, Tayfun BİLGİNb
aTrakya Üniversitesi Diş Hekimliği Fakültesi, Protetik Diş Tedavisi ABD, Edirne, TÜRKİYE
bİstanbul Üniversitesi Diş Hekimliği Fakültesi, Protetik Diş Tedavisi ABD, İstanbul, TÜRKİYE
Turkiye Klinikleri J Dental Sci. 2021;27(3):426-32
doi: 10.5336/dentalsci.2020-78145
Article Language: TR
Full Text
ÖZET
 Amaç: Günümüzde, implant üstü sabit restorasyonlar için dijital ölçü ve üretim aşamasına geçilmiştir. Fakat geleneksel yöntemlerle elde edilen ölçü ve/veya alçı modellerinin, ağız dışı tarayıcılarda taratılmasının ne kadar hassas olduğu hâlen tartışma konusudur. Bu in vitro çalışmanın amacı, 3 adet ağız dışı tarayıcının doğruluğunu değerlendirmektir. Gereç ve Yöntemler: Taranabilir Tip 4 alçı ile dişsiz bir alt çene modeli oluşturulmuştur. Kanin, 1. premolar ve 1. molar bölgelerine 6 adet implant analogu yerleştirilmiştir. Analoglar üzerine TiBase abutmentler ve Scan Body parçaları yerleştirildikten sonra 3 adet de ağız dışı (D800, inEOS X5, ArcticaScan) tarayıcı ile onar kez taranmıştır. Elde edilen veriler programlarla STL formatına dönüştürülmüştür. Ayrıca alçı model, kontrol grubunun oluşturulması amacıyla endüstriyel tarayıcı (ATOS Core 80) ile taranmıştır. Dental ve endüstriyel tarayıcılardan elde edilen veriler daha sonra yüzey bazında 3 boyutlu karşılaştırma programında değerlendirildi. Bulgular: Çalışma verileri değerlendirilirken normal dağılım göstermeyen parametrelerin gruplar arası karşılaştırmalarında Kruskal-Wallis testi ve farklılık gösteren grupların birbirleriyle olan ilişkilerinin değerlendirilmesinde Mann-Whitney U testi kullanılmıştır (p<0.05). Cihazlar yüzey çakıştırmalarına göre sıralandıklarında D800 kontrol grubuna en yakın doğrulukta bulunmuştur. ArcticaScan ve inEOS X5 13-20 μm değer aralığında doğruluk göstermişlerdir. Sonuç: Çalışmamızda kullanılan ağız dışı tarayıcılar endüstriyel tarayıcılara oldukça yakın değerlerde doğruluk göstermişlerdir.

Anahtar Kelimeler: Diş kalıp materyalleri; diş ölçü tekniği; analog-dijital dönüşümü; diş protezi, implant destekli
ABSTRACT
 Objective: Today, digital impression and digital manufacturing has been started for implant supported fixed restorations. However, the accuracy of scanning impression and/or gypsum models obtained with conventional methods in extra-oral scanners is stil a matter of debate. The aim of this in-vitro study is to evaluate the trueness of three different extra-oral scanners. Material and Methods: An edentulous mandibular model was manufactured using scannable Type 4 gypsum. Six implant analogues were placed in canine, first premolar and first molar regions. After TiBase abutments and Scan Bodies were screwed on the analogs, model was scanned ten times in each of the three scanners (D800, inEOS X5 and ArcticaScan). The data obtained were transformed into STL format with the programs. Additionally, in order to compose the control group, the referance model was also scanned by the industrial Scanner. The two sets of data collected from the dental and the industrial scanners were then compared through three-dimensional software on the surface basis. Results: During the evaluation of the data obtained in the study, Kruskal-Wallis test was employed for the comparison of the parameters exhibiting a non-standard distribution pattern, while Mann-Whitney U test was utilized for assessing the relations between groups differing from each other (p<0.05). When the studied devices were arranged in order based on surface superimpositioning, D800 was found to have the trueness rate which was the closest to the control group. On the other hand, ArcticaScan and inEOSx5 exhibited a trueness rate between 13 μm and 20 μm. Conclusion: The extra-oral scanners employed within this study were found to have trueness values considerably close to the industrial scanners.

Keywords: Dental impression materials; dental impression technique; analog-digital conversion; dental prosthesis, implant-supported
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