The effect of bite force distribution of complete overdenture with magnetic attachment on the periodontal condition of abutment teeth
DOU Chen-yun
XIN Hai-tao
FENG Fan
WU Yu-lu
DIAO Xiao-ou
YE Xiao-lan
Abstract：AIM:To analyze the relationship between the bite force distribution of complete overdenture (COD) retained by magnetic attachment and the periodontal tissue condition of abutment teeth.METHODS:14 patients with COD (including 16 abutment teeth) retained by magnetic attachment were included.The periodontal condition was checked 1 to 2 years after use of the denture.The bite force distribution was analyzed using the T-scan Ⅲ system.The relationship between the bite force distribution and the periodontal condition of the abutment was studied.RESULTS:There was no significant change in the gingival bleeding index,probing depth and the mobility of 14 abutments in 12 patients,but the alveolar bone density of the abutments decreased,especially the abutments of the unilaterally retained COD.The bite force in anterior teeth area was higher than that in posterior teeth area (P ＜ 0.05).For unilaterally retained COD,the bite force was higher in the abutment and on the side of abutment (P ＜0.05);but for bilaterally retained COD,no significant difference of bite force was observed on 2 sides (P ＞ 0.05).The alveolar bone density of the abutment decreased with the increase of bite force distributed on the abutment,but alveolar bone loss was not observed.CONCLUSION:The distribution of bite force on the COD changes over time.Overloading on the abutment can bring about decrease of alveolar bone density.
Keywords：magnetic attachmentcomplete overdenture (COD)bite force distributionalveolar bone
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 96-99,122 )