Is a gum lift/ gingivectomy before veneers necessary for me? How many teeth should I get done if so?

Wow what a great veneer case this will be.  Without question, you will want to do some gum recontouring on the front four teeth before placing veneers. You lip looks lip it raises really high when you smile as well.  If you still show excess gum tissue after the veneers are completed you could have a procedure called lip tacking.  This is a surgery that will keep you lip from pulling so high when you smile.  Best of luck.  

To gain the best symmetry you will benefit from gum lift (gingivectomy / esthetic  crown lengthening)  all the way to your back teeth. Even though you are not going to veneer them ...This is because in your profile pics You have a gummy smile which extends to the molars .....

Absolutely. It is ultimately important that beautiful front teeth, match and are mirror images of one another. They are the "stars" of your smile. As in any cosmetic smile work, we start from the front two teeth. With placement, size, and length. Then examine the surrounding teeth to make sure all match in harmony. That is how a decision is made whether only 2 teeth will do the job, or placing veneers or crowns on surrounding teeth will much improve the smile

You absolutely need to have your gums moved up on 8, 9, and 10. It can be done at the time of tooth preparation with a laser.

In your case, I would highly recommend Esthetic Crown Lengthening performed by a periodontist for best esthetic results. You also look like you may have some parafunctional habits such as grinding and clenching so it will be important for you to discuss getting a night guard to protect your teeth.  Make sure you do your research and find a dentist that is highly experienced with cosmetic treatment prior to having any dental work done! 

Hello,

In your case gingivectomy is the most recommended for you because will eliminate your gum and contour the teeth at the same level of the other and get better results. 

Hello and thank you for your question.Re-countering the gums will be absolutely essential in your case, if you want to get the best aesthetic result. I would recommend to have it done on at least 3 front teeth, but the final word will be with your treating doctor, of course.In regards to how long to wait for healing, it usually 4-8 weeks. There are cases, where only gingivectomy is needed to correct unevenness of the gums. In that case, if it is performed using a dental laser, veneers can be started the same day.All the best to you!

Yes it does seem that you need aesthetic crown lengthening.
It seem from the photos that you need crown lengthening for teeth #6-11 to have optimal result but that should be determined with waxup design and mockup.
You need to wait minimum 6 week after crown lengthening to have the veneers finalized .

Gum lift, gingivoplasty, gingivectomy, or gum recontouring are all the same thing and it is highly recommend in your case especially if you’re going to get veneers done. Your veneers will not look the best if your gum tissue isn’t taken into consideration. You’re spending all this money, you want the best transformation results right? Gums are the foundation and frame work to your teeth. Get them symmetrical to achieve the best smile design for your veneers. Recontouring just teeth 8 & 9 will improve a lot, but your dentist ultimately will be the quarterback on which teeth (s)he would like to recontour to get you the best results. 

I would definitely consider a gum lift in your case. I would consider the 3-4 front teeth and even the premolar teeth. The gum level of the canines looks good. If gum lift is done it should be done before starting the veneer process. Usually we wait at least 4 weeks after the gum lift before we start the veneers.