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Dental Materials
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#1Weidan Luo (Sichuan University)
#2Yannan Huang (Sichuan University)
Last. Lei Cheng (Sichuan University)H-Index: 27
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Abstract Objective Agglomeration is a common problem facing the preparation and application of nanomaterials, and whether nano-hydroxyapatite (nano HA) can modulate oral microecology left to be unclear. In this study, nano HA was disaggregated by sodium hexametaphosphate (SHMP) and ultrasonic cavitation to observe whether agglomeration would affect its effect on oral bacterial biofilm. Methods Dynamic light scattering (DLS) and scanning electronic microscope (SEM) were used to observe the treatm...
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#1Felicitas Wiedenmann (LMU: Ludwig Maximilian University of Munich)
#2Regina Pfefferle (LMU: Ludwig Maximilian University of Munich)H-Index: 1
Last. Bogna Stawarczyk (LMU: Ludwig Maximilian University of Munich)H-Index: 32
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Abstract Objective To investigate the impact of high-speed sintering, layer thickness and artificial aging in a chewing simulator on the fracture load (FL) and two-body wear (2BW) of 4Y-TZP crowns. Methods 4Y-TZP crowns (Ceramill Zolid HT+, Amann Girrbach AG) in three different layer thicknesses (0.5, 1.0, 1.5; N = 192, n = 64/group) were manufactured using CAD/CAM technology and sintered at 1580 °C (high-speed sintering) or 1450 °C (control group). Specimens were polished in two-steps and bonde...
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#2Nikolaos Silikas (University of Manchester)H-Index: 8
Last. David C. WattsH-Index: 53
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OBJECTIVE: To evaluate the effects of pre-heating time and exposure duration on the degree of conversion (DC), maximum rate of polymerization (RPmax), polymerization shrinkage strain (PS) and surface micro-hardness (VHN) of Viscalor. METHODS: Viscalor syringes were pre-heated using a Caps Warmer (VOCO, Germany) in T3 mode (at 68 degrees C) for 30s (T3-30s) and 3min (T3-3min) and then the composite paste was extruded into appropriately sized molds. Light irradiation was applied at zero distance f...
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#1Nina Lümkemann (LMU: Ludwig Maximilian University of Munich)H-Index: 3
#2Regina Pfefferle (LMU: Ludwig Maximilian University of Munich)H-Index: 1
Last. Bogna Stawarczyk (LMU: Ludwig Maximilian University of Munich)H-Index: 32
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Abstract Objective This investigation tested pre-shaded 3Y-TZP materials on optical, mechanical and structural properties and calculated correlations between these properties. Methods Seven A2-shaded 3Y-TZP zirconia materials were investigated on translucency (T) via UV–vis-spectrophotometer, fracture load of 3-unit FDPs (FL), biaxial flexural strength (FS), Chevron-Notch Beam (CNB), fracture toughness (KIC) and Martens parameter (hardness: HM and indentation modulus: EIT). FL, FS and KIC were m...
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#1Oleh Andrukhov (Medical University of Vienna)H-Index: 17
#2Christian Behm (Medical University of Vienna)H-Index: 1
Last. Xiaohui Rausch-Fan (Medical University of Vienna)H-Index: 22
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OBJECTIVES: The impact of the implant surface material and roughness on inflammatory processes in peri-implantitis is not entirely clear. Hence, we investigated how titanium and zirconia surfaces with different roughness influence the susceptibility of primary human gingival fibroblasts to different inflammatory stimuli. METHODS: Primary human gingival fibroblasts were isolated from 8 healthy individuals and cultured on following surfaces: smooth titanium machined surface (TiM), smooth zirconia ...
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#1Amanda Maria de Oliveira Dal Piva (Academic Center for Dentistry Amsterdam)H-Index: 5
#2João Paulo Mendes Tribst (Academic Center for Dentistry Amsterdam)H-Index: 5
Last. Cornelis J. Kleverlaan (Academic Center for Dentistry Amsterdam)H-Index: 32
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Abstract Objectives The present investigation evaluated the step stress accelerated test (SSALT) load profiles on the survival probability of a glass ceramic under two surface conditions (polished or roughened). Methods Suprinity–ZLS blocks (Vita Zhanfabrik) were shaped into cylinders, cut in a sawing machine, and crystalized according to the manufacturer's instructions. 60 discs were obtained (O = 12 mm, thickness = 1.2 mm) and randomly assigned into two surface conditions: “p” polished surface...
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#2D.C. WattsH-Index: 2
Last. Andreas SchedleH-Index: 19
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#1J.C. Romanini-Junior (NYU: New York University)
#2Ronaldo Hirata (NYU: New York University)H-Index: 7
Last. Andre Figueiredo Reis (UF: University of Florida)
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Abstract Objectives to evaluate the probability of survival and failure modes of lithium-disilicate, feldspathic-ceramic, and resin-nanoceramic anterior veneers cemented on dentin analog substrates after sliding-contact step-stress accelerated life testing (SSALT). Methods A virtual incisor tooth preparation was produced with a reduction of 1.5 mm at the incisal edge and of 0.7 mm buccally. A .STL file of the preparation was generated and CAD/CAM based G10 dentin-analog material was used for tes...
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#1Shenglong Tan (HUST: Huazhong University of Science and Technology)
#2Shangsi Chen (HUST: Huazhong University of Science and Technology)
Last. Shengmin Zhang (HUST: Huazhong University of Science and Technology)H-Index: 24
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Abstract Objectives We aim to investigate the dentin tubule occlusion and remineralization potential of a novel nano-monetite hydrosol (nMH). Methods First, nano-monetite hydrosol (nMH) was fabricated by homogeneous precipitation method. Then, the effectiveness of toothpaste with nMH on improving remineralization was evaluated by the measurement of tubule occluding ratio and acid-resistant stability compared with dentifrices comprising nano-hydroxyapatite hydrosol (nHH) and bioactive glass (BG)....
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Composite number
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