PMC7580742_01
(a and b) Preoperative frontal and lateral extraoral profile. (c) Preoperative intraoral view. (d) Sagittal expansion appliance. (e and f) Postoperative frontal and lateral extraoral profile view. (g) Postoperative intraoral view
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F1
Cephalometric pre-values and postvalues are shown in Table 1 (Case 1), and pre-operative and postoperative results are shown in Figure 1.
PMC7580742_02
(a-c) Preoperative extraoral and intraoral photographs. (d and e) Extraoral view showing petite facemask. (f and g) Intraoral frontal and upper occlusal view showing intraoral cemented appliance. (h-j) Postoperative extraoral and intraoral pictures
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F2
Pre-operative and postoperative cephalometric values and images are shown in Table 1 (Case 2) and Figure 2, respectively.
PMC7580742_03
(a-c) Preoperative extraoral and intraoral photographs. (d and e) Intraoral frontal views showing two-by-six fixed orthodontic appliance. (f-h) Postoperative extraoral and intraoral pictures
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F3
The pre-treatment and posttreatment results are shown in Table 1; case 3 and images are shown in Figure 3.
(a) Preoperative intraoral frontal view. (b) Reverse twin-block appliance. (c) Postoperative intraoral frontal view
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F4
The pre-operative and postoperative results are shown in Figure 4.