objective: different educational tools are now commonly used in universities worldwide such as illustrations, audio and videotapes, etc. this study aimed to compare the efficacy of educational film and clinical demonstration for instruction of fiber-reinforced composite (frc) post restorations to dental students in department of restorative dentistry.   methods: this interventional study was co...

STUDY OBJECTIVES To examine the relationships between changes in expiratory flow limitation (FL) during anesthesia and postoperative responses to lung volume reduction surgery (LVRS). DESIGN Prospective consecutive case comparison. SETTING University medical center. PATIENTS Eight patients with severe emphysema. INTERVENTIONS General anesthesia with muscle paralysis and thoracic epidura...

The direct tensile test (DTT) is the most recommended to determine behavior of fiber-reinforced concrete (FRC). However, this challenging perform. Several studies have investigated inverse analysis through simplified tests, such as bending test. This study deals with developing a new approach perform an for three-point (3PBT) involving FRC. A proposed methodology concerns carrying out procedure...

OBJECTIVES To determine and compare the fracture resistance of endodontically treated maxillary central incisors restored with different posts and cores. MATERIALS AND METHODS Forty-eight upper central incisors were randomly divided into four groups: cast post and core (group 1), fiber-reinforced composite (FRC) post and composite core (group 2), composite post and core (group 3), and control...

OBJECTIVE The aim of this study was to compare the resistance to vertical root fracture of root-filled teeth restored with four different fiber-reinforced composite (FRC) post systems and two types of dual-cured resin luting agents. MATERIALS AND METHODS Ninety extracted human maxillary central incisors were selected and decoronated to obtain a standardized root length of 14 mm. After root ca...

The Phase IV, 8-week, randomized, double-blind, placebo-controlled ACTIVATE study (NCT02424344) evaluated the effect of aclidinium/formoterol (AB/FF) 400/12 μg twice daily on lung hyperinflation, exercise capacity, and physical activity in patients with moderate-to-severe COPD. Patients received AB/FF (n=134) or placebo (n=133) (1:1) via the Genuair™/Pressair® dry powder inhaler for 8 weeks. Fr...

Introduction: Infants with chronic lung disease (CLD) have a high capacity to maintain normal functional lung volume despite their alterations in lung mechanics. We hypothesise that they achieve this by altering breathing pattern and dynamical elevation of lung volume, leading to differences in the relationship between respiratory muscle activity (rEMG), flow pattern and lung volume, whereby ti...

Amaçlar: Bu çalışmanın amacı, tribokimyasal yüzey işleminin (Tbc) güncel CAD/CAM post materyalleri ile kök kanal dentini arasındaki itme bağlantı dayanımına (İBD) etkisinin değerlendirilmesidir. Gereçler ve Yöntemler: Yeni çekilmiş sağlam 52 adet insan maksiller santral kesici dişleri seçildi endodontik olarak tedavi edildi. Dişler, kullanılan materyaline göre rastgele 7 gruba ayrıldı: Kompozit...

Objective: The applications of single-structure fiber-reinforced composite (FRC) in restorative dentistry have not been well reported. This study aimed to clarify the static mechanical properties of anterior crown restorations prepared using two types of single-structure FRC. Materials and methods: An experimental crown restoration was designed for an upper anterior incisor. The restorations we...

BACKGROUND The measurement of functional residual capacity (FRC) in ventilated patients could help track the extent of acute lung disease, monitor recruitment of unstable lung units, or guide the use of PEEP. Quantitative analysis of computed tomography (CT) images of the lungs is currently the accepted standard for FRC measurement (FRC-CT), but is impractical for routine use. Gas dilution and ...