Effects of digitally processed maxillary skeletal expanders on hard and soft tissues in patients with maxillary transverse defi-ciency
10.13591/j.cnki.kqyx.2025.08.005
- VernacularTitle:数字化流程制作的上颌骨性扩弓器对上颌横向发育不足患者软硬组织的影响
- Author:
Shushu HAO
1
;
Shu LOU
1
;
Qifei YANG
1
;
Minchun CAI
1
;
Min HU
1
;
Zhendong WANG
1
Author Information
1. 南京医科大学附属口腔医院正畸科,江苏省口腔疾病研究重点实验室,江苏省口腔转化医学工程研究中心,江苏南京(210029)
- Publication Type:Journal Article
- Keywords:
maxillary skeletal expander;
digital workflow;
maxillary transverse deficiency
- From:
STOMATOLOGY
2025;45(8):590-595
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the three-dimensional changes in hard and soft tissues before and after treatment with digitally fabricated maxillary skeletal expanders in patients with maxillary transverse deficiency.Methods Twenty late adolescents or adults with maxillary transverse deficiency treated at the Orthodontic Department of Affiliated Stomatological Hospital of Nanjing Medical Uni-versity using digitally fabricated maxillary skeletal expanders were included.Cone-beam computed tomography(CBCT)scans were ob-tained before and after treatment.Three-dimensional measurements were analyzed using Dolphin 3D 11.95 software,and statistical anal-ysis was performed with SPSS software.Paired t-tests were used to compare pre-treatment and post-treatment changes in hard and soft tissues.Results Significant increases were observed in anterior midpalatal suture width,posterior midpalatal suture width,maxillary apical base width,and maxillary alveolar width(P＜0.001).No significant changes were found in alveolar ridge inclination,alveolar ridge height,LSNA(P＞0.05).Significant increases occurred in apical distance,cementoenamel junction distance,and inter-fossa distance(P＜0.001),while first molar inclinationand ∠U1-SN remained stable(P＞0.05).Significant improvements were noted in upper airway volume,nasal floor base width,and nasal cavity width(P＜0.001).Conclusion For late adolescents or adults with max-illary transverse deficiency,digitally fabricated maxillary skeletal expanders can achieve near-parallel expansion of the midpalatal suture,effectively improving maxillary transverse dimensions and airway volume while minimizing dental side effects.
