While the typical annual salary for experienced dental hygienists in California is around $120,000, reaching a $200,000 annual income is uncommon and usually requires additional factors such as working in high-paying private practices, taking on specialized roles, or working extra hours. Some dental hygienists may increase their earnings through opportunities like ownership of a practice, providing specialized services, or working in regions with higher cost of living and wages. However, for most hygienists, earning $200,000 per year is not typical and would depend on a combination of experience, location, additional responsibilities, and entrepreneurial ventures within the dental industry.