Lets get back to dentistry. We have been through this before on earlier threads. I am entirely in favor of orthodontics to straighten teeth. Grade school students should have their teeth straightened as soon as the dentist and orthodontist agree. You cannot go wrong having the health benefits of straight teeth. Don't get into a hissy fit with the dentist as to how the front teeth should be to play trumpet. Gaps aren't necessary, the dentist won't put them in as it reflects poorly on his work. A wide dental arch is best as opposed to a pointed arch but it has more to do with bone structure than choice. There are thousands of trumpet players learning to play with braces every year and thousands adapting to when the braces come off. The appliance that comes later can be worse but should be removed when practicing and performing. IF you elect to have braces as a professional I doubt if it would effect you much. A proper embouchure such as what the trumpet masters use is very robust and can adapt to the slow change in tooth structure over time. I also have bonded repairs. Long ago my dentist kirfed my teeth and bonded in plastic facias. That is what you see on the web site. My current dentist reworks the facias as they chip or disbond after 20 years. I don't have any problem adapting to bonded facias. As for gum work I don't have a clue. Trimming gums is done when crowns are installed. That is the most experience I have had. Trimming gums in the front is not usually necessary and probably a result of gum disease.