This in-vitro study aimed to investigate whether intraoral scanners (IOS) are suitable for wear measurement compared optical profilometry (WLP). A zirconia cast representing the teeth (24–28) was fabricated. It digitized six times using three different scanners, Cerec Omnicam AC (OC), Trios 3 (Tr3), and True Definition (TD). The scans were conducted at baseline (t0) stages of simulated (t1–t3),...

BACKGROUND The purpose of this study was to compare two impression techniques from the perspective of patient preferences and treatment comfort. METHODS Twenty-four (12 male, 12 female) subjects who had no previous experience with either conventional or digital impression participated in this study. Conventional impressions of maxillary and mandibular dental arches were taken with a polyether...

AIM The aim of this study was to measure the temperature increase induced by various light-curing units during photo-polymerization beneath ceramic restorations. METHODS Three light-curing units were used; a high intensity QTH unit Elipar 2500 and two LED units: Translux Power Blue and Excelled 1400. The 15 ceramic specimens (CEREC Blocks) used in this study were of 2.5 mm thickness, 5 mm wid...

Bensheim/Salzburg, 25 February 2016. Zirconium dioxide has been successfully used in dentistry for about 20 years. The majority are restorations with zirconia frameworks and ceramic veneers. For the past six years, fully anatomical zirconium dioxide (full contour zirconia) has been increasingly used for restorations (crowns and bridges) [1] [2] [3]. The results from in vitro tests show that wit...

Background and Aim: Marginal adaptation has a significant role in the success and longevity of indirect restorations. This experimental study compared the effect of intraoral and extraoral scanning on the marginal adaptation of the crowns which was made using the CEREC AC system. Materials and Methods: A Typodont maxillary first molar was prepared and served as the master die for an all-cera...

We aimed to evaluate the trueness of digital and conventional impression techniques based on different angles distances between implants deviation caused by angle distance parameters varying implants. Eight were placed in a polyurethane edentulous mandibular model at distances. After obtaining 3-dimensional (3D) reference using an optical scanner, was scanned with three intraoral scanners: Cere...

Bu in vitro çalışmanın amacı, diş destekli sabit protezlerde kullanılan monolitik Zirkonya Kuronların ideal kalınlığı ile iki farklı kuron preparasyonunun (Rehber Oluklu Diş Kesimi ve Konvansiyonel Kesim yöntemleri) ilişkisini araştırmaktır. Çalışmamız için Frasaco fantom mandibulasına yerleştirilmiş 39 adet prefabrike sağ alt azı dişi kullanıldı. dişlerin 16'sı yöntemi diğer 23 ise Rehber Tekn...