EFFECTS OF ORTHODONTICS COMBINED WITH PROSTHODONTICS ON CEPHALOMETRIC VALUES OF HARD TISSUE, ANGLE VALUES OF SOFT TISSUE, OVERBITE AND COVERAGE OF ANTERIOR TEETH IN PATIENTS WITH ANGLE’S CLASS Ⅱ MALOCCLUSION

Hailan Wang¹, Zongxiang Liu², Shixing Wang¹, Penglai Wang^{3, *}

¹Department of Orthodontics, Stomatological Hospital Affiliated to Xuzhou Medical University, Xuzhou 221000, Jiangsu Province, China - ²Department of Periodontist, Stomatological Hospital Affiliated to Xuzhou Medical University, Xuzhou 221000, Jiangsu Province, China - ³Department of Implant, Stomatological Hospital Affiliated to Xuzhou Medical University, Xuzhou 221000, Jiangsu Province, China

Objective: To explore the therapeutic effect of orthodontics combined with prosthodontics on patients with Angle’s Class Ⅱ malocclusion. 

Methods: A total of 97 patients with Angle’s Class Ⅱ malocclusion admitted to our hospital from January 2017 to February 2019 were selected as research objects. Fifty-one patients received orthodontics combined with prosthodontics, which was regarded as combined group (CG). The other 46 patients only received orthodontics treatment, which was regarded as routine group (RG). The clinical efficacy, oral function, incidence of adverse reactions, occlusal angle, soft tissue angle, overbite and coverage of anterior teeth and satisfaction were compared between the two groups. 

Results: The cure rate, masticatory function and language function scores in CG were higher than those in RG (P<0.05), while the incidence of adverse reactions was lower than that in RG (P<0.05). After treatment, the angle SNB was higher than that before treatment, while the angle ANB, overbite and coverage of anterior teeth were lower than that before treatment (P<0.05). After treatment, the FH-B'LL, H angle and Ns-Sn-Pos in CG were higher than those in RG, but the LL-B'-Po was lower than that in RG (p<0.05). After treatment, the E Angle, A’UL-B’LL, Z angle UL, S-N’-B’, LL-B’-Po were all lower than before treatment, while FH-B’LL, H angle and Ns-Sn-Pos were all higher than before treatment (P<0.05). 

Conclusion: Orthodontics combined with prosthodontics is effective and safer in the treatment of Angle’s Class Ⅱ malocclusion, which can coordinate the development of maxilla and mandible and improve the patient’s facial shape to a certain extent. It is worth popularizing in clinic.