From there [Ben] sought out the best finishing step, starting with hand polishing tests, flame polishing, and methylene chloride vapor polishing (which is something along the lines of acetone ...

Modern composite resins fulfil many restorative objectives which could only be attained by ceramics in the past, including satisfactory and long-lasting aesthetics. The natural layering concept ...

Why not a six-axis CNC polishing head? I\'m sure it could do the job a lot faster than 10 minutes per square cm and wouldn\'t cost as much as a laser system. Might use a bit less energy, as well.