The purpose of this study is to develop a methodology better control human-robot collaboration for robotic dental implant placement. We have designed collaborative system (HRCDIS) which based on zero-force hand-guiding concept and operational task management workflow that can achieve highly accurate stable osteotomy drilling surgeon's decision arm movements during surgery.The HRCDIS brings forth the robot positions, exact location, direction performs automatic drilling. also avoid complex...

Abstract Polyetherketoneketone (PEKK) is an engineering plastic with ultrahigh mechanical performance and has attracted considerable attention in the medical technical fields. Printing parameters during fused deposition modeling (FDM) for PEKK have a significant impact on final part quality. In this study, relationship between process flexural properties of was investigated by conducting three‐point bending tests, scanning electron microscopy employed to analyze microstructure fracture...

The combination of a prosthetic index with Morse taper connection was developed, the purpose making procedures more precise. However, presence may compromise mechanical performance abutment. aim this study is to evaluate effect on stress distribution in implant-abutment-screw system and peri-implant bone by using 3D finite element methodology.Two commercial dental implant systems different implant-abutment connections were used: platform switching (MT-PS) internal hex matching (IH-PM)...

Surgery of jawbones has a high potential risk causing complications associated with temporomandibular joint disorder (TMD). The objective this study was to investigate the effects two drive modeling methods on biomechanical behavior (TMJ) including articular disc during mandibular movements. A finite element (FE) model from healthy human computed tomography used evaluate TMJ dynamic using methods, namely, conventional spatial-oriented method (displacement-driven) and compliant...

Abstract Precision and surface quality of pure titanium (Ti) castings for dental biomedical uses are limited because the high melting temperature violent reactivity Ti with mold materials during casting procedures. This feasibility study evaluates an experimental low‐melting Ti‐Co alloy in term its microstructure physical mechanical properties. Tensile samples Ti‐12 wt % Co were cast under a protective argon atmosphere. The range samplers was determined. Cast annealed at 1010°C various time...

Customized prosthetic joint replacements have crucial applications in severe temporomandibular problems, and the combined use of porous titanium scaffold is a potential method to rehabilitate patients.The objective study was develop design obtain alloy condylar prosthesis with good function esthetic outcomes for mandibular reconstruction.A 3D virtual model created from CBCT data. A defect subsequently by condylectomy on initial model. The segmented reconstructed either solid or condyle...

To examine the effect of natural antimicrobial peptide human β-defensin-3 (hBD-3), on migration a head and neck cancer cell line in vitro using microfabrication soft-lithographic techniques.TR146 cells were seeded Petri dishes with microfabricated wells for assays. Total 54 islands used various shape size experimental media type. Cell assays analyzed six group media: Dulbecco's modified medium (DMEM); DMEM vascular endothelial growth factor (VEGF); Conditioned embryonic kidney (HEK 239)...

The specific aim of this study was to examine the relative contributions implant insertion torque value (ITV) by cortical and trabecular components an in vitro bone model. Simulated blocks polyurethane were used with 2 densities foam (0.08 g/cm(3) mimic 0.64 bone). We have developed a new platform technology collect data that enables quantitative evaluation ITV at different locations. Seven groups model varying thicknesses over lower-quality clinical significance: solid 0.08 block; 1 mm, 3...

AI systems that can capture human-like behavior are becoming increasingly useful in situations where humans may want to learn from these systems, collaborate with them, or engage them as partners for an extended duration. In order develop human-oriented the problem of predicting human actions---as opposed optimal actions---has received considerable attention. Existing work has focused on capturing aggregate sense, which potentially limits benefit any particular individual could gain...

The advent of machine learning models that surpass human decision-making ability in complex domains has initiated a movement towards building AI systems interact with humans. Many blocks are essential for this activity, central one being the algorithmic characterization behavior. While much existing work focuses on aggregate behavior, an important long-range goal is to develop behavioral specialize individual people and can differentiate among them. To formalize process, we study problem...

Abstract Long‐term excessive forces loading from muscles of mastication during mandibular motions may result in disorders temporomandibular joint (TMJ), myofascial pain, and restriction jaw opening closing. Current analysis movements is generally conducted with a single opening, protrusive lateral rather than composite that the three can be combined arbitrarily. The objective this study was to construct theoretical equations reflecting correlation between muscle forces, consequently analyze...

Abstract Background The objective of the study was to validate biomechanical characteristics a 3D-printed, novel-designated fixation plate for treating mandibular angle fracture, and compare it with two commonly used plates by finite element (FE) simulations experimental testing. Methods A 3D virtual mandible created from patient’s CT images as master model. custom-designed were reconstructed onto model FE simulations. Modeling simulation muscles mastication, defining boundary conditions...