Objectives: To assess the shear bond strength (SBS) of chairside computer-aided design and computer-aided manufacturing (CAD-CAM) blocks to dentin subjected to simulated gastric erosion when cemented with self-etch and self-adhesive resin cements.
Materials and Methods: One hundred eighty dentin samples were assigned to two groups: sound and eroded dentin. In the eroded dentin group, samples were eroded with HCl (0.01 M, pH 2, 2 min) and stored in artificial saliva for 60 min then, brushed using a power brush (2N, 15 s). This cycle was repeated three times. CAD-CAM blocks (3x3x3 mm3, n=15/group) of Lava Ultimate (LU), Vita Enamic (VE), and Vita Suprinity (VS) were cemented to sound and eroded dentin with self-etch Multilink N (MN) and self-adhesive RelyX U200 Automix (RU) resin cements. SBS was measured after 24 hours. The failure mode was assessed by using a stereomicroscope. Data was analyzed with 3-way ANOVA and Bonferroni correction (p˂0.05).
Results: The SBS was significantly affected by the main factors: tooth structure (p=0.011), resin cements (p˂0.001), and CAD-CAM blocks (p=0.001). When LU was cemented with RU to sound dentin, a higher SBS was obtained compared to eroded dentin (p=0.001). MN revealed significantly higher SBS than RU (p<0.05). When using MN in sound dentin LU showed lower bond strength than VE and VS (p<0.05). The predominant failure mode was mixed for all groups.
Conclusions: It was determined that the bond strength of dentin was affected by simulated gastric erosion. The use of Multilink N resin cement in both sound and eroded dentin can be recommended. For a reliable bond to eroded dentin, selection of the proper cement system and material type are necessary.
This study is based on a thesis and supported by Karadeniz Technical University Coordination Unit of Scientific Research Project No. 2018.7670.
Project No. 2018.7670
The authors thank Prof. Dr. Tamer Tuzuner for providing statistical advice and assistance in this study.
Amaç: Bu çalışmada hastabaşı bilgisayar destekli tasarım-bilgisayar destekli üretim (CAD-CAM) bloklarının self-etch ve self-adeziv rezin simanlar kullanılarak gastrik erozyona uğratılmış dentine olan makaslama bağlanma dayanımlarının değerlendirilmesi amaçlanmıştır.
Gereç ve Yöntemler: Yüz seksen dentin örneği sağlam dentin ve eroze dentin olmak üzere iki gruba ayrılmıştır. Eroze dentin grubunda örnekler HCI (0,01 M, pH 2, 2 dk) ile erozyona uğratılmış ve 60 dk yapay tükrükte bekletilmiş, sonrasında, elektrikli diş fırçası kullanılarak (2N, 15 s) fırçalanmıştır. Bu döngü üç kere tekrar edilmiştir. Lava Ultimate (LU), Vita Enamic (VE) ve Vita Suprinity (VS) CAD-CAM blokları (3x3x3 mm3, n=15/grup) self-etch Multilink N (MN) ve self-adeziv RelyX U200 Automix (RU) rezin simanları kullanılarak sağlam ve eroze dentin örneklerine simante edilmiştir. Makaslama bağlanma dayanımı 24 saat sonra ölçülmüştür. Başarısızlık tipi stereomikroskop kullanılarak değerlendirilmiştir. Veriler üç-yönlü ANOVA ve Bonferroni düzeltmesi kullanılarak analiz edilmiştir (p˂0,05).
Bulgular: Makaslama bağlanma dayanımı ana faktörlerden önemli ölçüde etkilenmiştir: diş yapısı (p=0,011), rezin simanlar (p˂0,001) ve CAD-CAM bloklar (p=0,001). LU sağlam dentine RU ile simante edildiğinde, eroze dentinle karşılaştırıldığında daha yüksek bağlanma dayanımı elde edilmiştir (p=0,001). MN kullanıldığında, RU’dan daha yüksek bağlanma dayanımı değerleri elde edilmiştir (p<0,05). Sağlam dentinde MN kullanıldığında LU, VE ve VS’den daha düşük bağlanma dayanımı göstermiştir (p<0,05). Tüm gruplarda baskın olan başarısızlık tipi karma başarısızlık olarak belirlenmiştir.
Sonuçlar: Dentinin bağlanma dayanımının gastrik erozyondan etkilendiği belirlenmiştir. Hem sağlam hem de eroze dentinde Multilink N rezin siman kullanımı önerilebilir. Eroze dentinde güvenilir bir bağlanma için uygun siman ve restoratif materyal seçimi gerekmektedir.
Project No. 2018.7670
Primary Language | English |
---|---|
Subjects | Health Care Administration |
Journal Section | Original Research Articles |
Authors | |
Project Number | Project No. 2018.7670 |
Publication Date | June 30, 2022 |
Submission Date | March 28, 2022 |
Published in Issue | Year 2022Volume: 25 Issue: 2 |
Cumhuriyet Dental Journal (Cumhuriyet Dent J, CDJ) is the official publication of Cumhuriyet University Faculty of Dentistry. CDJ is an international journal dedicated to the latest advancement of dentistry. The aim of this journal is to provide a platform for scientists and academicians all over the world to promote, share, and discuss various new issues and developments in different areas of dentistry. First issue of the Journal of Cumhuriyet University Faculty of Dentistry was published in 1998. In 2010, journal's name was changed as Cumhuriyet Dental Journal. Journal’s publication language is English.
CDJ accepts articles in English. Submitting a paper to CDJ is free of charges. In addition, CDJ has not have article processing charges.
Frequency: Four times a year (March, June, September, and December)
IMPORTANT NOTICE
All users of Cumhuriyet Dental Journal should visit to their user's home page through the "https://dergipark.org.tr/tr/user" " or "https://dergipark.org.tr/en/user" links to update their incomplete information shown in blue or yellow warnings and update their e-mail addresses and information to the DergiPark system. Otherwise, the e-mails from the journal will not be seen or fall into the SPAM folder. Please fill in all missing part in the relevant field.
Please visit journal's AUTHOR GUIDELINE to see revised policy and submission rules to be held since 2020.