INBDE (Integrated National Board Dental Examination) Practice Exam 2026 - Free Practice Questions and Study Guide

Primate space is the correct term for the space between the upper laterals and lower canines. This space is typically filled in by the eruption of permanent teeth, such as premolars.

Leeway space is the space that exists between the primary molars and permanent premolars.

Interdental space refers to the space between adjacent teeth.

Cervical space is a medical term referring to the neck area or pertaining to the neck of a tooth. While each of these choices involves some type of space in the mouth, they are not specific to the description given in the question. Therefore, they are incorrect options for this question.