PMC9675624_01
Pretreatment intra- and extra-oral photographs
FID-19-28-g001.jpg
PMC9675624_01_FID-19-28-g001.jpg
F1
Her chin projection was slightly increased but the mento-labial angle was normal (Fig.1). There was no evidence of wear on the the incisal tips of anterior teeth or mandibular shift on closure (Fig.1).
The banded Haas-type expander with two palatal extensions
FID-19-28-g002.jpg
PMC9675624_01_FID-19-28-g002.jpg
F2
A banded Haas-type expander with two palatal extensions and two buccal hooks between canines and 1st premolars was fabricated based on the working cast and cemented to the 1st molar and premolars (Fig.2). 
Cephalometric superimposition at the cranial base (centered on sella). T1: Pretreatment; T2: Post protraction; T3: After fixed treatment; T4: Follow up
FID-19-28-g003.jpg
PMC9675624_01_FID-19-28-g003.jpg
F3
Maxillary superimposition (palatal plane centered on ANS) and Mandibular superimposition (mandibular plane centered on menton). T1: Pretreatment; T2: Post protraction; T3: After fixed treatment; T4: Follow up
FID-19-28-g004.jpg
PMC9675624_01_FID-19-28-g004.jpg
F4
Follow-up intra and extra oral photographs
FID-19-28-g005.jpg
PMC9675624_01_FID-19-28-g005.jpg
F5