A Vandiveer Strait, DDS (Retired)- Acct. Suspended

Yes, composite bonding if done properly will look great, be very maintainable, and last for years.  That being said, there are two critical aspects of this.  One is before any bonding is done it is important that your periodontal health be good and be maintainable.  In our office we teach our patients a system that eliminates the pathogenic bacteria that cause periodontal/gum disease and  receding gums. You should find a good Cosmetic general dentist who has a microscope and treats the cause not just the symptoms of gum disease. The second critical aspect is that the dentist you choose should be very experienced and skilled at bonding and cosmetic dentistry. The reason this is so important is because adding bonded composites on the roots and between your teeth to eliminate the gaps and enhance your smile is a very skilled procedure. If the bonding is not done well it can make the maintenance of the health of your teeth and gums more difficult and may not last. Of course this could also be said of veneers.   

Invisalign is an amazingly accurate technology.  From what I can see from your photos making your smile broader can easily be done with Invisalign orthodontics. The dentist will be able to see the final result via a "Clincheck" which  is a computer model of your teeth showing all the movements from start to finish. Unless you are 12 years old any expansion of your arch will not be "palatal expansion".  I would advise that you get an opinion from a General Dentist who has at least 5 years experience with Invisalign Orthodontic treatment and who also does cosmetic dentistry before you proceed. Most General and cosmetic Dentists who are experienced with Invisalign will be able to help you make the best decision and give you the best result long term. At our office we have been treating cases like yours with Invisalign for over 20 years with great success. Make sure you do not get an Invisalign substitute. Compared to other look alike clear aligners Align/ INVISALIGN a 21st Century technology company holding as of 2019, 420 active U.S. patents and 456 active international patents.  Also thanks to its continued focus on research and development, the company also claims 416 pending patents across the world.

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From your photos and history you provided I would strongly suggest that your first step be Invisalign Orthodontics since your teeth have drifted considerably and this will affect everything else you do in the future. Invisalign is faster, more comfortable, and a healthier orthodontic technology than traditional wire and bracket orthodontics.  Before you start you should have an overall plan.  I would advise that you go to a good Cosmetic General Dentist who offers comprehensive care and has at least 5 years experience with Invisalign. Your evaluation should include the health of your teeth, bone, and periodontal structures (gums and supporting bone), your occlusion/ bite,  you smile,  the long term stability of any work done, and your personal goals. Make sure you do not get an Invisalign substitute. Compared to other look alike clear aligners Align/ INVISALIGN is a 21st Century technology company holding as of 2019, 420 active U.S. patents and 456 active international patents.  Also thanks to its continued focus on research and development, the company also claims 416 pending patents across the world. I have been doing cases like yours using Invisalign orthodontics combined with restorative, cosmetic dentistry and implants for 20 years in our offices near NYC in Connecticut and I see no reason you can not stage the care you need to whatever schedule is comfortable for you financially and achieve a great and healthy smile that with reasonable maintenance should last a lifetime.

It is probable that the sensitivity and "shockwaves" you are experiencing are a result of exposure of the internal dentin of your teeth via wear on the edges/tops or from the roots being exposed via recession of your gums.  You should see an experienced Cosmetic General dentist for a second opinion and to correct this, particularly if it is due to the wear of the edges or cusps of your teeth.  Also you should note that bleaching can only whiten teeth a few shades. If you want much whiter teeth this can only be achieved thru Veneers being placed on your teeth.  Also it is important to consider the overall health of your teeth and supporting bone and gums for the long term well being of your smile.

The best solution is first to find an experienced General dentist who offers comprehensive care and routinely provides Endodontic (root canal) treatment of molars as well are Crowns and other restorative care and to do this as soon as possible.  His evaluation is critical, but from what you are stating and from my experience over 30 years of treating 100's of teeth simiIar to what you are describing  I would expect that what is needed is: 1. to remove any debris from inside the tooth where the root canals were treated and make sure the remaining tooth structure is sound. 2. to make sure the root canal treatment was done correctly and that the roots are still sealed. 3. to build up the missing tooth structure internally including where there was any previous fillings/restorative care (this may entail using a post and core using the canals to anchor and strengthen the build-up), and 4. placing a well fitting and properly contoured crown. My experience has been that if this is done properly your tooth can last for the rest of your life.