A worker controls a robotic machine as it colour-codes titanium dental implants at the Nobel Biocare manufacturing facility in Yorba Linda, California May 16, 2013. Nobel Biocare Holding AG is trying to regain its initial success after seeing its profits and image hit in recent years, as many European consumers stopped spending on cosmetic dentistry during the financial crisis and rivals pushed ahead with cheaper options. Picture taken May 16. To match story NOBELBIOCARE-TURNAROUND/
REUTERS/Mike Blake (UNITED STATES - Tags: SCIENCE TECHNOLOGY HEALTH BUSINESS)