Dental To regain arch length in anterior segment by moving incisors labially A Cephalometric analysis have to be made before taking up treatment B Use tongue blade therapy 20 times 1 day C Use of 7 spring with Hawley's retainer D Use on anterior bite plane 💡 Explanation To regain arch length in anterior segment by moving incisors labially ✓ Correct Answer: A. Cephalometric analysis have to be made before taking up treatment