Chair: Yoshinori Nakamura (Aichi Gakuin University)

#2

 Immediately loaded mandibular 2-implant overdentures retained by magnetic attachments:

Marginal bone loss and survival rate

○Kaidiliya Yalikun, Miyayasu Anna, Kanazawa Manabu, Omura Yuri, Minakuchi Shunsuke

Gerodontology and Oral Rehabilitation, Graduate school, Tokyo Medical and Dental University

[Purpose]

The aim of this 1-year study was to evaluate and compare marginal bone loss and survival rate on immediate and conventional loading of two implants mandibular overdenture with magnetic attachments.

[Material and methods]

Nineteen mandibular edentulous patients were allocated 2 groups. Implants were loaded by mandibular overdentures either 3 months (conventional loading group) or the same day (immediate loading group) after implant surgery. Marginal bone loss was recorded at the time of implant surgery, 3, 6 and 12 months after implant placement using standardized radiographs. The T-test was used for marginal bone loss analyses, and the log-rank test was used for survival rates.

[Results and discussions]

Marginal bone loss was the highest for the immediate loading group, while no statistically significant difference between 2 groups. Survival rates of the immediate loading of 2 implants using magnet attachment-retained mandibular overdentures were 100%, conventional loading were 89%. In addition, do not differ significantly between 2 groups on survival rates.

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