Secondary outcome: depth of COS
incisors
The depth of COS was measured manually just before the placement of interventional AW and at the end of the intervention (1 month) using a digital caliper as the perpendicular distance between the deepest cusp tip and a flat plane that was laid on top of the mandibular dental cast, touching the incisal edges of the central incisors and the distal cusp tips of the second molars. It was measured on the right and left sides of the mandibular arch, and the average value was included in the analysis. All dental casts were trimmed and mounted equally on a dental surveyor to ensure accurate results.