Final answer:
Raina saw an Endodontist to have the roots in her teeth cleaned out. Deciduous teeth emerge around 6 months of age, permanent teeth start around age 6, and wisdom teeth typically come in during young adulthood.
Step-by-step explanation:
The kind of dentist Raina saw to have the roots in her teeth cleaned out is an Endodontist. Endodontists are dental specialists who deal with the treatment of the inside of the tooth, particularly the root canals and issues related to the dental pulp. They are skilled in performing root canals which involve cleaning out the infected or damaged tissue from the inside of the tooth.
When considering the overall dental health and stages, deciduous teeth, also known as baby teeth, typically begin to emerge around 6 months of age. Permanent teeth generally start to replace deciduous teeth around age 6 and will continue to emerge into adolescence, and wisdom teeth usually emerge in young adulthood, although this can vary from individual to individual.