Peicheng Xu, DDS, MSD,(a) and Honghu Liu, DDS, PhD(b)
(a)Shanghai Xuhui Dental Hospital and (b)Honghu Dental Clinic, Shanghai, P. R. China.
Purpose: To evaluate the treatment effects of maxillary protrusion malocclusion with prosth-orthodontic method in old adults, which is a combined use of prosthodontics and orthodontics.
Materials and Methods: Totally 18 cases were treated by prosth-orthodontic method, including 16 females and 2 males, average 45.6 years in age. Cephalometric analysis was applied to evaluate the treatment effects. Angle and liner changes of pretreatment and post-treatment were determined and the results were analyzed by Student tests (p<0.05).
Results: Compared with pretreatment and post-treatment by prosth-orthodontic method, the angle changes were significantly different in the measurement of U1-FH (p<0.05) and II (p<0.01), and the linear changes were significantly different in the measurement of OB (p<0.05), OJ (p<0.01), Uls-AB (p<0.01), LLs-AB (p<0.05), Bs-AB (p<0.05), and C-St (p<0.05). After the prosth-orthodontic treatment, the angle of upper and lower incisors were changed to normal, the overbite and overjet were reduced to normal.
Conclusion: Prosth-orthodontics is an effective method for old adults.
(Int Chin J Dent 2003; 3: 76-81.)
Clinical Significance: The results of the current study demonstrate that the prosth-orthodontics is an effective method for old adults, especially for those who are not suitable for orthodontic treatment cases.
Key Words: cephalometric analysis, maxillary protrusion, orthodontics, prosthodontics, proth-orthodontics.