Photoelastic Stress Analysis Surrounding Implant-Supported Prosthesis and Alveolar Ridge on Mandibular Overdentures

Figure 1

(a) Traditional model, (b) Fulcrun model, (c) Three implants with “O” rings, (d) “O” ring in the left canine, ERA in the right canine, linked with hader bar, (e) an example of overdenture.

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(b)

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