TY  - BOOK
AU  - Omar Samy Mahmoud
AU  - Ehab Aboelros , 
AU  - Hamdy Aboelfoutoh , 
TI  - The change in retentive values of O - ring and magnetic attachments in mandibular implant supported overdentures over periods of time : : An in vitro study / 
PY  - 2012///
CY  - Cairo : 
PB  - Omar Samy Mahmoud , 
KW  - Magnets
KW  - O-ring
KW  - Overdenture
N1  - Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Prosthodontics; Issued also as CD
N2  - The aim of this study is to evaluate and compare the change in the retentive values caused by repetitive cycles of insertion and removal of mandibular implant - supported over - dentures retained by O - ring (ball and socket) and magnetic attachments over periods of time . Results : O - ring attachments showed high but unstable retention values with statistically significant but a very stable retention values with statistically insignificant changes from the beginning of the study till the last cycle
UR  - http://172.23.153.220/th.pdf
ER  -