The Journal of the American Dental Association
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J Am Dent Assoc, Vol 92, No 4, 740-743.
© 1976 American Dental Association
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Journal of the American Dental Association, Vol 92, Issue 4, 740-743
Copyright © 1976 by American Dental Association

Journal Article

In vitro retentive strength of fixed bridges constructed with acrylic pontics and an ultraviolet-light-polymerized resin



PM Lambert, DL Moore, and HH Elletson

The in vitro retentive strength of 24 test bridges was studied. The bridges were maxillary canine to central incisor spans, and an acrylic pontic replaced the lateral incisors. The pontic was retained by a resin polymerized with ultraviolet light. The mean forces necessary to dislodge the pontic bonded to natural teeth in the three-unit bridges were determined to be 41.5 lb for a force applied toward the incisal edge and 55.8 lb for a force applied toward the gingival ridge. A promising clinical application of this technique is suggested.




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