Mature dental professionals are far from an endangered species, and very few have plans to stop working anytime soon, according to a survey done recently by CareerBuilder. Some dentists continue working to compensate for the downward hit their personal and retirement investment accounts took during the recession. The real reasons are more diverse, though. It is not all about money only. Many dentists still feel they have too much to contribute to even consider retirement. And many patients agree. “Whether mature dentists are motivated by financial concerns or simply enjoy treating their patients every day, we’re seeing more people move away from the traditional definition of retirement,” says Ms. Rosemary Haefner, vice president of human resources at CareerBuilder.