Can an implant crown be replaced with more bulk in the back using the same abutment?

To answer your question, of course your canine crown can be redone using the same implant and abutment.  Their is no reason, whatsoever, that your canine should not look and feel like your actual tooth.  I recommend contacting your dentist to discuss your concerns.  I suspect that he/she will help you to replace this crown with something that feels a lot more natural to you.  Good luck and I hope this helps. Follow me if you have more questions.Sarah Thompson, DMD

In a short answer, yes.  A new crown may solve your issue.  Hopefully it was recent and the dental lab your dentist uses doesn't have a problem with adjusting or remaking your crown. 

If you placed and implant , some trauma must have happened to your own  natural tooth such as :Infectionbone lossaccidentfailed root canalsfailed old crowns or fillingssevere decayBad biteperiodontal diseaseAll of the above means some sort of trade off with having a healthy tooth and bone structure. Therefore, implants can only do so much. Without photos and x-rays it is impossible to give you exact answer "yes or no" . Your dentist should know best. Get a second opinion if it can be improved or not, and don't expect for it to be free . As long as the tooth looks good and fits well around the abutment, your  "likes and dislikes" ,  "is not refundable . specially there may come a time that the novelty will ware off and your tongue will quit investigating, and you'll be used to food trap and cleaning it rapidly. However,  some dentist will do it at cost , or try for an improved one if possible and charge lab fees.Good luck.  

You have a crown that your tongue continually goes to - that can be soooo annoying.  Tongues are such curious fellows.  Depending on the type of abutment you have, you might be able to reuse the abutment.  Cementable crowns are the most likely type of crowns where the abutment can be re-used.  Your dentist has the answer here.  Remaking a crown to make the inside (lingual) contours of your matching canine can easily be done.  The contours can be expanded at the gum line so that food is less likely to get trapped.  Finally, depending on when the crown was cemented, you will want to ask for a free to partially free remake...it is not your fault that the crown was not made to match the contralateral canine.  That is one of the things that lab for the Center for Esthetic Dentistry looks at...knowing the inner portion of any anterior crown is key to tongue comfort and to a decrease to oral stress. Make a plea to your dentist to redo it for your for free if you just had it put in.

The implant can still be used, and MAYBE the abutment, but the crown would need to be remade entirely.  Food getting caught may not be solved, as the bone level around the implant is often lower than adjacent teeth.  This creates contours that often need constant attention/flossing.  Your treating dentist can best advice.  However, you would likely need to pay the entire fee over again, so you must decide how badly you dislike the new crown.