What Are My Options for Replacing Missing Lateral Incisors?

Dental Implants are the best and most esthetic way to replace missing lateral incisors.  They also have the best longevity.  A bridge would require cutting down your adjacent healthy teeth which compromises their health as well and your gingival and bone health.  Bridges last on average 5-7 years depending on which study you read.  After that, you may require root canals in the crowned teeth and ultimately in the future those teeth will be lost.  This is why dental implants are the standard of care for this issue.  Seek the advice of a Board Certified Oral and Maxillofacial Surgeon and qualified restoring dentist to discuss your specific case

Missing lateral incisors, after having orthodontics to open the spaces they should occupy, can be beautifully replaced with implant supported crowns. Sounds like you would ALSO like to veneer your centrals and cuspids, and perhaps 1 or 2 bicuspids on each side, as well. This would get you the truly beautiful, symmetrical, cosmetic smile that you are seeking, as long as the work is done by a well-qualified and experienced cosmetic dentist that listens to what you want. You must communicate all your wishes to your dentist BEFORE starting out, and make sure he is willing to show you other before & after pictures of similar cases that he has done. He should also assure you that you will have a chance to approve the cosmetic look, IN YOUR MOUTH, before permanently inserting anything.

A possible "temporary Fix" that you might want to look into is "Snap-On-Smile". If your dentist is not familiar with it, ask him to call Den-Mat and get more information.