High-Speed Laser Drilling for Dental Implantation: Ablation Process and Applicator Technology

Investigation of the Nd:YAG laser percussion drilling process using high speed filming

1. Abstract Modem aerospace gas turbines require large numbers of small diameter holes « 1 mm) to provide cooling in the turbine blades, nozzle guide vanes, combustion chambers and afterburner. A typical modem engine will have 1 00,000 such holes. Such holes can be successfully produced by laser trepanning, but this is a relatively slow process compared with laser percussion drilling. With perc...

High speed Radix-4 Booth scheme in CNTFET technology for high performance parallel multipliers

A novel and robust scheme for radix-4 Booth scheme implemented in Carbon Nanotube Field-Effect Transistor (CNTFET) technology has been presented in this paper. The main advantage of the proposed scheme is its improved speed performance compared with previous designs. With the help of modifications applied to the encoder section using Pass Transistor Logic (PTL), the corresponding capacitances o...

High Speed Thin Metal Cutting using Fiber Laser Technology

There are several methods available for precision cutting of thin metals less than 0.06-inch thick used for these applications, which include materials such as stainless steel, titanium, nickel, and aluminum. The major options, lasers, electric discharge machining (EDM), water-jet, and chemical machining each have a role to play. However, precision fiber laser cutting technology is now emerging...

Subpicosecond laser ablation of dental enamel

Finite Element Simulation of Dental Implantation Process

Using the finite element procedure, the insertion process of a dental implant into a section of the mandible is analysed. Elevated stress concentrations in both cancellous and cortical bone are examined during implantation. An implant of length 11mm is inserted at 1mm increments into the mandible. The torque applied to the implant top ranges from 0 to 450Nmm for a total time period of 36 second...