Retention forces of spherical attachments as a function of implant and matrix angulation in mandibular overdentures: an in vitro study.

@article{Ortegn2009RetentionFO,
  title={Retention forces of spherical attachments as a function of implant and matrix angulation in mandibular overdentures: an in vitro study.},
  author={Sergio M Orteg{\'o}n and Geoffrey A. Thompson and John R. Agar and Thomas D. Taylor and Dimitri Perdikis},
  journal={The Journal of prosthetic dentistry},
  year={2009},
  volume={101 4},
  pages={231-8}
}
STATEMENT OF PROBLEM Nonparallel implants, when used to retain overdentures, may present a restorative challenge, particularly when using attachments. Premature wear of the components and loss of retention may be observed, resulting in increased maintenance. PURPOSE The purpose of this study was to compare the retentive behavior, over time, of spherical attachments when used in nonparallel and parallel implant scenarios in a cyclic testing mode. MATERIAL AND METHODS Thirty sets of 2-implant… CONTINUE READING

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