Clinical application of magnetic attachments in complete overdentures / 解放军医学杂志

ABSTRACT

Objective To evaluate the clinical effects of magnetic attachments in complete overdenture. Methods Casting method was used to fabricate Coping-Keepers for remained roots, and the patients were followed up for 6 months to check the effects of the overdentures retained with Magfit EX attachments. In the experimental group, 21 complete overdentures were made with 33 Magfit EX magnetic attachments for 18 patients. Eleven patients treated with traditional complete overdentures were selected to act as control. The retention force, aspect and comfortableness were subjectively evaluated by the patients of the both groups. Abutment status was observed and compared before and after cementation of the magnetic attachments by measuring periodontal index, including gingival index (GI), sulcus bleeding index (SBI) and bleeding on probing (BOP), etc. Masticatory function of patients in the both groups was measured at 3 time points immediate, 3 months and 6 months after cementation. Results Patients in experimental group were more satisfied with complete overdentures made up of magnetic attachments than those in control group, especially in retention force and masticatory efficiency and aspect. Magnetic attachments can provide enough retention force for patients and greatly improved the masticatory efficiency and the abutment condition. The masticatory function was to be perfect and stable after 3-6 months. Furthermore, the mobility and periodontal index of most abutments improved after 6 months. Conclusion It is proved that magnetic attachments are effective to improve the function of complete overdentures, worthy to be used widely. It is suggested that the residual root and loosened tooth should be preserved furthest as possible in clinic.