A preschooler coming for her first dental visit will experience which basic type of fear?
The tight bond between parent and child at this early stage of emotional development is reflected in a strong sense of "separation anxiety" in the child when separated from the parent. If it is necessary to provide dental treatment at an early age, it usually is preferable to do so with the parent present and, if possible, while the child is being held by one of the parent.
Note: Stone and church’s classification 
           Infants – upto 15 months of age 
           Toddler – 15months – 2 years of age 
           Preschooler – 2-6 years of age 
           Middle year chld – 6-12 years of age 
           Adolescent – 12years till maturity.
Subjective fear
Separation anxiety
Innate fear
Objective fear