Can my two front teeth made bigger with bonding or do I have to get veneers to lengthen them?

Great question, let me try to answer it as best as I can without a good photo or your teeth.Dental Bonding:  could last 1-3 years  depending on your oral care;  cheaper than veneers, fast procedure (meaning it takes 1 appointment); can fix discolorations; however, bonding brakes very easily when on a chewing service of the tooth; bad for extending teeth, if expecting the material not to brake.Veneers:  They will last 20 or 30 years with excellent oral care; more expensive than bonding; great for fixing discolorations, and great for extending teeth; highly stain resistant; very durable on biting services of the tooth; can be done in 1 or 2 appointments with a cosmetic dentist.Veneers are what I do, so follow me if you have more questions about them.Sarah Thompson, DMD

You stated that your teeth are shorter due to clinching and grinding....if that is the case, neither white filling (bonding, composite) nor Lumineers is a good option.  If you don't correct your overall bite (get you back molars back into their original height), then you'll just grind or break your new Lumineers or bonding away.  Recommend you go see a dentist and have your occlusion checked prior to deciding which material to use to make your two front teeth longer.  If you occlusion is fine, then I recommend Lumineers to lengthen your two front teeth.  It's stronger and it looks more natural.

Well , how long have you had bonding on. If it has worked for you long time, it could work again. Veneers do have a better and longer lasting result but everything works best in the hands of clinician. See your nearest dentist who can offer you what works best in his/her hands.

Certainly bounding is a good alternative to veneers and can be lengthened quite conservatively without any preparation to the underlying tooth. The only disadvantage to bonding is lifespan and often, after a few years, does stain. The newer bonding materials are quite aesthetic and highly polishable, the result, with skilful colour matching can be quite aesthetic. It does not have the lustre of porcelain veneers but in some cases can be equally as aesthetic. Particularly in lengthening, if a layering technique is used, with a skilful approach the aesthetic befits are almost comparable to veneers.

You mention that your teeth have gotten shorter from clenching.  In general, teeth don't get shorter from clenching, but rather from grinding, which mostly occurs at night.Your teeth can be made longer with either approach, however porcelain veneers are much stronger when it comes to lengthening teeth, and as such, should last you many times over what direct composite bonding will do, especially if you are "grinder."Also, the shape of the teeth tend to be much better with veneers than bonding, and likewise the color of the teeth is much better and more stable over time.Thus, I would advise porcelain veneers over direct composite bonding.You might be interested in seeing some examples of patients who have had their teeth lengthened with porcelain veneers.  See the web reference below.