The measurement of retentive forces in mandibular complete overdenture with Magfit magnetic attachments.
- Author:
Li DU
1
;
Chun XU
;
Yonglie CHAO
Author Information
- Publication Type:Journal Article
- MeSH: Aged; Aged, 80 and over; Dental Prosthesis Design; methods; Dental Prosthesis Retention; instrumentation; Dental Stress Analysis; Denture Precision Attachment; Denture, Complete, Lower; Denture, Overlay; Electromagnetic Fields; Female; Humans; Magnetics; instrumentation; Male; Materials Testing; Stress, Mechanical
- From: West China Journal of Stomatology 2003;21(5):366-368
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo evaluate the in vivo retentive forces of mandibular complete overdenture with Magfit attachments, as well as the relation between the location of magnetic attachments and the retentive forces of the denture.
METHODS5 patients were selected and treated with mandibular complete overdentures retained by Magfit EX600 and MD800 attachments. A strainometer was used to measure the retentive forces in anterior, central and posterior parts of the overdenture before and after magnets were set. The vertical and anterior-upper 60 degrees retentive forces of the overdenture were measured one month later.
RESULTSThe retentive forces of the overdentures after setting magnets were significantly greater than that before magnets were set (P < 0.05). There was no significant difference in retentive forces between the different parts (P > 0.05). The retentive force in vertical direction was greater than that in anterior-upper 60 degrees direction (P < 0.025).
CONCLUSIONMagnetic attachments can significantly improve the retention of mandibular complete overdenture. The location of magnetic attachments greatly influences the retentive force of the overdenture.
