Canine to canine bridge OR double abutment bridge

 Canine to canine bridge or double abutment?

This image helps explain why we do a 6 unit bridge canine to canine but do not connect the premolar to get extra support.  The premolar ends up getting decay around the margin and rotting out.  The physics is explained pretty well by the photo.  Bite into something on the front and the canine is the fulcrum and the bridge lifts off the premolar.

canine bridge
Image from DT thread and more specifically Lane
Bryan Bauer, DDS, FAGD

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4 Responses to “Canine to canine bridge OR double abutment bridge”

  1. CharlesFebruary 9, 2019 at 8:39 pm #

    I have a 17 year old 6 unit frontal bridge, left side abutments, canine and tooth # 22 and single canine on the right. #22 has a stress fracture of the root with decay and bone loss and cannot be saved. One option is to remove roof and fill void with synthetic bone, leaving the bridge as is with the remaining two canines as abutments. Is this a feasible option long term?

    • Bauer BryanFebruary 11, 2019 at 5:03 pm #

      Yes that is a good plan.

  2. D. MorganFebruary 17, 2019 at 11:58 pm #

    Thank you. The other option is two implants (# 22 & its opposite) as abutments for the two front incisors and leaving the canines unattached. Would you consider this a superior option or unnecessary in your opinion?

    • Bauer BryanFebruary 18, 2019 at 11:04 pm #

      Honestly that depends on how old you are and likely you are to get decay in the future. The implants are better but that might be more than you need if you are older than maybe 70. Of course no one knows how long it will last or how long you will need it (years left to live). No one knows how your physical and mental health will be in future either and the implants will take the most abuse. I personally would get implants but if money is an issue the bridge is fine.

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