Dental An 18 year old male patient is unhappy with his smile. Which is the best modality of treatment to address the chief complaint of this patient? A Crown lengthening B Arch expansion C Lip lengthening D Mandibular arch contraction 💡 Explanation An 18 year old male patient is unhappy with his smile. Which is the best modality of treatment to address the chief complaint of this patient? ✓ Correct Answer: B. Arch expansion