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Number and Location of Mini-Implants Retaining a Mandibular Overdenture to Resist Lateral Forces: A Preliminary In
Purpose:
The aim of this study was to determine the optimal number and location of mini-implants retaining an overdenture to resist lateral forces.
Materials And Methods:
A strain gauge was attached to a mini-implant and placed in an edentulous mandible model. The following different implant locations were evaluated: one mini-implant at the midline, two mini-implants in the lateral incisor regions, two mini-implants in the canine regions, and four mini-implants.
Results:
Lateral forces on mandibular overdentures retained by one mini-implant at the midline or two mini-implants in the lateral incisor regions appeared to be advantageous when compared with placing two mini-implants in the canine regions or four mini-implants.
Conclusion:
Fewer mini-implants resulted in less lateral stress, while four were associated with an unequal stress distribution.
