Tense mouth/jaw creates lines when speaking - would Botox help? (photos)

Thank you for your question and photos. While Botox is an excellent choice to treat a gummy smile, it is unlikely to affect the lines you’re referring to. Combining your Botox treatments with hyaluronic acid dermal fillers may create the smooth and youthful appearance you’re looking for.
By adding volume to the necessary areas, the skin will be lifted and lines diminished. Results from dermal filler injections can last for up to a year or more, depending on the formula used. I recommend scheduling an in-person consultation with an experienced, board-certified injector who can assess your concern and determine the best treatment option for you.

A combination approach would give the most improvement. Deep wrinkles and smile lines can be improved with a combination of Botox and/or fillers for the lines themselves and to build anatomical support with Sculptra for collagen building. Ultherapy is a great skin tightening device, but works best in combination with other treatments like J Plasma, RF treatments, lasers, microneedling/PRP, salt facials, Cosmelan for skin tightening and improve skin tone. I recommend getting a formal evaluation with an expert. Best, Dr. Emer

Thank you, moppy12345 for your question and photographs.
Photographic evaluation is incomplete without personal examination to give a most appropriate answer
However from the photographs, it seems that,

Botox for the gummy side can definitely help in reducing your gum as shown in the images while smiling. Botox when done for the mentalis muscle will also help in reducing the hyperactivity of the lower part of the face. Fillers can also be injected in the same area with myomodulation the results will undoubtedly be much better.

Please consult a board-certified plastic surgeon near you and discuss this in detail.
Wish you an alluring look.

The jaw tension could be relieved with Botox which is often used to help with TMJ discomfort. It will likely not address the wrinkles that concern you around your mouth. This may improve with fillers, AccuTite, or perhaps Morpheus8 treatments. See a board certified plastic surgeon near you for a consultation to learn more.

Using Botox on your face, will not help you, but may create more problems. It’s not that your muscles are working in a different way, it is the fact that your face has gotten a lot thinner over time, and you have lost a great deal of volume in terms of fat. Presence of more fat underneath the skin hid the folds that you can now see. In my opinion, you can have fat grafting, which will restore the volume of fat that you used to have in your younger days, Fat transfer will get rid of these folds and at the same time make you look 15 or 20 years younger. The procedure of fat grafting, when performed by a plastic surgeon with a great deal of experience in fat grafting techniques, produces natural and permanent results. I hope this helps and good luck from New York City Plastic Surgery.