Can overlapped teeth be reshaped or bonded? (Photo)

yes, that is possible with intentional root canal treatment and veneers. But it's not advisable. It's my advice to go for aligners, you will get results very fast without compromising your healthy tooth structure.

In order to contour the front teeth, you will need to remove healthy tooth structure. If you bond these teeth to mask the alignment problem, you will also be
making a commitment to fix the bonding if it ever discolors or becomes
chipped. It is better for you in the long run to straighten the teeth out with Orthodontic treatment and to place them in the proper position. Preserving your natural tooth structure is always the best option! I would see your Orthodontist for a consult to discuss your options - braces vs. Invisalign.

I will try my best to answer the question.  I do not think that contouring the teeth will give you a very aesthetic result.  Your best treatment option is to straighten the teeth with Invisalign, lingual braces or regular braces.  If you are looking for something more immediate, I recommend veneers on the front six teeth rather than just trying to recontour the single tooth.  Sometimes it can be difficult to match a single tooth although materials are a lot better now.    I do not recommend cutting down beautiful healthy teeth when they can be saved and straightened. In the end, it's what you want your end result to look like.  I think it is important to consult with a cosmetic dentist, prosthodontist and and orthodontist before you make your final decision.  Good luck!Kind regards,Dr. Jennifer Stachel

Re-contouring your tooth or adding composite to health teeth will not correct the bigger issue which is malocclusion. The best way to fix the issue from the picture provided would be having a consult with an orthodontist. Yes, everyone hates braces, but braces are actually the best thing for fixing maligned teeth. It is also the cheapest way to correct your issue long term. Most orthodontic consultations are free. You should visit your oral health care provider and find out what treatment options are available. Also which one of the treatment options would be best for you long term.