Clinical efficacy of maxillary protraction combined with customized titanium plate in the treatment of skel-etal class Ⅲ malocclusion during growth period
10.3969/j.issn.1006-5725.2025.14.016
- VernacularTitle:上颌前牵引联合个性化钛板治疗生长发育期骨性Ⅲ类错(牙合)的临床效果
- Author:
Lei LI
1
;
Lu HAN
1
;
Geng WU
1
Author Information
1. 徐州医科大学附属连云港医院口腔科(江苏连云港 222000)
- Publication Type:Journal Article
- Keywords:
maxillary protraction;
customized titanium plate;
growth phase;
skeletal Class Ⅲ mal-occlusion;
clinical effect
- From:
The Journal of Practical Medicine
2025;41(14):2231-2236
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the clinical efficacy of maxillary protraction combined with custom-ized titanium plates in the treatment of skeletal Class Ⅲ malocclusion during the growth and development stage.Methods A total of 96 patients diagnosed with skeletal Class Ⅲ malocclusion who received treatment at our hospital between May 2021 and May 2023 were included in this study.Participants were randomly divided into two groups using a ball-drawing method:those assigned odd numbers were placed in the control group(n=48),while those assigned even numbers were allocated to the experimental group(n=48).The control group underwent max-illary protraction therapy alone,whereas the experimental group received maxillary protraction combined with cus-tomized titanium plate intervention.The two groups were evaluated and compared based on clinical effectiveness,facial soft tissue parameters(LL-EP,NLA,G-SnPg),hard tissue parameters[SNA(sella-nasion-A point angle),SNB(sella-nasion-B point angle),ANB(A point-nasion-B point angle),MP-SN(mandibular plane-SN angle),MP-FH(mandibular plane-Frankfort horizontal angle),A-OLP(vertical distance from A point to occlusal line plane),Pg-OLP(vertical distance from pogonion to OLP),and Y-axis angle],hyoid bone position,dental indica-tors(H-X,H-Y,H-MP,H-FH),and the incidence of adverse events.Results Following the intervention,the experimental group demonstrated a significantly higher overall efficacy rate compared to the control group(P＜0.05).The LL-EP value was significantly lower in the experimental group(P＜0.05);conversely,SNA,ANB,MP-SN,MP-FH,A-OLP,and the Y-axis angle were all significantly increased(P＜0.05).Additionally,H-X and H-Y distances were notably shorter(P＜0.05),while U1-NA was greater and overbite depth was reduced in comparison to the control group(P＜0.05).No statistically significant difference was observed in the incidence of adverse reactions between the two groups(P＞0.05).Conclusion Maxillary protraction utilizing customized titanium plates can significantly improve clinical outcomes in patients with skeletal Class Ⅲ malocclusion,posi-tively affecting both craniofacial hard and soft tissue structures,hyoid bone positioning,and dental parameters,while maintaining a favorable safety profile.
