Dental Which of the following is true regarding crowding of the dentition? A Crowding of the primary dentition usually resolves as the permanent teeth erupt. B Spacing in the primary dentition usually indicates spacing will be present in the permanent dentition. C Approximately 15% of adolescents have crowding severe enough to consider extraction of permanent teeth as part of treatment. D Lower incisor crowding is more common in African-American than white populations. 💡 Explanation Which of the following is true regarding crowding of the dentition? ✓ Correct Answer: C. Approximately 15% of adolescents have crowding severe enough to consider extraction of permanent teeth as part of treatment.