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Start date: 2020End date: 2026Subject: search.filters.subject.HumanSubject: search.filters.subject.humanAuthor: search.filters.author.Yüzbaşıoğlu, EmirAuthor: search.filters.author.Ilhan, Ceylan

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    Accuracy and efficiency of digital implant planning and guided implant surgery: An update and review
    (Ondokuz Mayis Universitesi, 2021) Ilhan, Ceylan; Dikmen, Mehmet; Yüzbaşıoğlu, Emir; Ilhan, Ceylan, Department of Prosthodontics, Bahçeşehir Üniversitesi, Istanbul, Turkey; Dikmen, Mehmet, Private Practice, Ankara, Turkey; Yüzbaşıoğlu, Emir, Department of Prosthodontics, Bahçeşehir Üniversitesi, Istanbul, Turkey, Department of Dentistry, BAU International University, Batumi, Georgia
    Advances in digital technology present seamless 3D integrated workflow options to eliminate surgical and prosthetic complications in dental implant treatment. Virtual implant planning with guided implant surgery is claimed to provide predictable results. State of art technology is capable to transfer virtual implant planning from software to clinical application. However, clinicians have to be aware of the potential deviation factors and risks of the different types of guided implant surgery systems to reduce the complications. This review aims to evaluate the efficiency and accuracy of different computer-assisted dental implant surgical techniques and to discuss their potential error sources. © 2021 Elsevier B.V., All rights reserved.
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    How do various mouth rinses influence the color stability of CAD-CAM resin-based restorative materials?
    (Elsevier Inc., 2025) Turker Kader, Izim; Yüzbaşıoğlu, Emir; Smail, Ferruh Semir; Ilhan, Ceylan; Turker Kader, Izim, Department of Prosthodontics, Bahçeşehir Üniversitesi, Istanbul, Turkey; Yüzbaşıoğlu, Emir, Private Practice, Istanbul, Turkey; Smail, Ferruh Semir, Dental Prosthetic Technology, Bahçeşehir Üniversitesi, Istanbul, Turkey; Ilhan, Ceylan, Vocational School of Health Services, Bahçeşehir Üniversitesi, Istanbul, Turkey
    Statement of problem: The color stability of computer-aided design and computer-aided manufacture (CAD-CAM) resin-based materials can be affected by their composition and exposure to different mouth rinses. However, the impact of different mouth rinse formulations on these materials remains unclear. Purpose: The purpose of this in vitro study was to investigate the effect of different mouth rinses on the color stability of CAD-CAM resin-based materials over time. Material and methods: A total of 180 specimens of 5 CAD-CAM resin-based materials were fabricated: a polymer-infiltrated ceramic network (PICN) (Vita Enamic, ENA), resin nanoceramics (GC Cerasmart, CERA, Brilliant Crios, BRC), a resin nanohybrid (Grandio, GRD), and a resin composite (KZR-CAD HR2, KZR). A lithium disilicate ceramic (IPS e.max CAD, EMX) served as the control (n=30). Specimens were immersed in alcohol-containing (Listerine Cool Mint, LIS), alcohol-free (Oral-B complete, ORLB), zinc-chloride containing (Pharmol Zn, PHR), hypochlorous acid-containing (Briotech Pure, BRT) mouth rinses, and artificial saliva (CON) for 12 hours (t0.5), 2.5 days (t2.5), and 5 days (t5) of simulated exposure equivalent to 1, 5, and 10 years. Color differences (ΔE00) were calculated at each time point. The effects of material, mouth rinse, and time were analyzed using 3-way robust ANOVA with Bonferroni post hoc tests (α=.05). Results: EMX exhibited the highest color stability, while the GRD showed the largest discoloration (P<.001). LIS and ORLB mouth rinses caused significantly higher ΔE00 values than other solutions (P<.001). Discoloration increased with longer exposure times (P=.001). Among all groups, BRC immersed in LIS exhibited the most pronounced color change, while EMX in CON showed the least (P=.001). Conclusions: CAD-CAM resin-based materials undergo a larger color change than lithium disilicate ceramic, with variations depending on composition and mouth rinse type. While alcohol-containing mouth rinse (LIS) induced the highest discoloration, particularly in the resin nanoceramic (BRC), the highest discoloration after a simulated prolonged exposure of 10 years was observed in the resin nanohybrid (GRD). Notably, the alcohol-free ORLB also led to significant discoloration, suggesting that other ingredients beyond alcohol contribute to staining. © 2025 Elsevier B.V., All rights reserved.