The purpose of this study is to evaluate macroscopic and microscopic appearance of a new implant design, with particular emphasis given to the type of prosthesis connection. Two dental implants of the same type (Torque Type(®), WinSix(®), BioSAFin. S.r.l. - Ancona, Italy), with sandblasted and acid etched surfaces (Micro Rough Surface(®)), but differing from each other for the prosthesis connec...

It is difficult to measure the surface roughness of large-pitch internal threads; predictions are used instead measurements, whereas common not highly accurate and narrow in scope use. The homologous isomerism data vibration signal were utilized establish a predictive model, which predicted threads. corresponding acquired by turning thread, processed using Relief-F algorithm obtain weights, eff...

The implant geometry provides a key role in the osseointegration process and is able to improve mechanical interaction primary stability into bone tissue. aim of present investigation was compare different profiles evaluate their influence on high-density polyurethane block. Methods: A total 100 implants were used 20 pcf density investigation, i.e., for each 5 groups (A, B, C, D, E), characteri...

BACKGROUND Triple-threaded, cannulated headless screws of varying thread diameters and pitch are designed to maintain thread length across the arthrodesis plane, provide joint compression, and reduce countersinking. This study tested the biomechanical fixation strength of conventional partially threaded lag screws compared to triple-threaded headless screws in first metatarsophalangeal joint ar...

Implant design refers to the three-dimensional structure of the implant, with all the elements and characteristics that compose it. Dental implants are subjected to various force magnitudes and directions during function. Because implants function to transfer occlusal loads to the surrounding biologic tissues, functional design objectives should aim to manage biomechanical loads to optimize the...

This paper introduces the application of uniform experimental design to improve dental implant systems subjected to dynamic loads. The dynamic micromotion of the Zimmer dental implant system is calculated and illustrated by explicit dynamic finite element analysis. Endogenous and exogenous factors influence the success rate of dental implant systems. Endogenous factors include: bone density, co...

A numerical simulation on the heat transport augmentation and flow drag behavior of spirally corrugated pipes was performed. The conducted basis experimental results documented in published literature. influence thread height pitch hydraulic–thermal performance as well mechanism convection development inside pipe were explored. It discovered that elevates Reynolds number region 4000~13,000 rise...

PURPOSE Pullout strength of screws is a parameter used to evaluate plate screw fixation strength. However, screw fixation strength may be more closely related to its ability to generate sufficient insertion because stable nonlocked plate-screw fracture fixation requires sufficient compression between plate and bone such that no motion occurs between the plate and bone under physiological loads....

Abstract Self-tapping wood screws are important fasteners in timber construction. A characteristic of these is their high axial load-bearing capacity, which also depends on withdrawal capacity. This used for structural design and thus an optimization parameter screws. To increase the knowledge influence thread parameters, such as outer diameter, pitch or flank angle, required. The influences an...