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Implants
crown won't stay on abutment
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<blockquote data-quote="JohnWilson" data-source="post: 55275" data-attributes="member: 213"><p>If I am reading this right the restorations have been in the mouth for 5+ years and only now they are coming uncemented?</p><p></p><p>If they have always had an issue then a remake would most likely have been done by now. If its only recently he is having issue perhaps now that he is older his adjacent teeth/opposing are in a different function meaning they are hitting the tooth harder when he chews/functions.</p><p></p><p>I am all for screw retained where applicable but most likely if these were congenitally missing canines the angle will be facial and only a cemented restoration will work. </p><p></p><p>As the other techs have mentioned even the shortest abutment when mating with a properly prepared crown will have retention. The cuspid guidance on this case must be checked very carefully as this is what I suspect is the biggest issue.</p><p></p><p>Good luck</p></blockquote><p></p>
[QUOTE="JohnWilson, post: 55275, member: 213"] If I am reading this right the restorations have been in the mouth for 5+ years and only now they are coming uncemented? If they have always had an issue then a remake would most likely have been done by now. If its only recently he is having issue perhaps now that he is older his adjacent teeth/opposing are in a different function meaning they are hitting the tooth harder when he chews/functions. I am all for screw retained where applicable but most likely if these were congenitally missing canines the angle will be facial and only a cemented restoration will work. As the other techs have mentioned even the shortest abutment when mating with a properly prepared crown will have retention. The cuspid guidance on this case must be checked very carefully as this is what I suspect is the biggest issue. Good luck [/QUOTE]
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crown won't stay on abutment
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