There are dentists and there are denturists. You only want to deal with a qualified specialist who does quality work. If you need dentures, ask to see the denturist's work. Before and after shots. Some are artists, some definately are not. A person who is a qualified denturist will make you look spectatular, if that is the degree of their work. If they don't care, well the worst set I ever saw, a sister smiled... and she looked like she had asked for white paino keys... and that is exactly what she got. They had no depth, just flat piano keys. Do NOT ask for white piano keys!
Just this past week, I went into an art shop and the lady behind the till must have asked her dentist for the biggest, fattest fake teeth because that is what she got. Big rounded robust. They did not fit her face at all. They looked man size and even on a large man, they would not have been pretty or handsome.
A good denturist will take the time to look at your facial colouring and then you together will decide on which white color to go with. There are so many different colors and depths of white. Don't just say, white.
Do NOT say: Just make them like my old teeth... especially if your natural teeth are uneven, chipped, bad color or WORN. Yes, some adults teeth are soft and through the years, get worn down, so that when you smile... all you see is a dark hole... with no teeth showing. No teeth showing... looks like you are toothless. Not the look you want.
Also, some people as they age, get gum recession. So if you say, Make my dentures like my old teeth, if the denturist takes you at your word (after all you are the one paying him) he will make you dentures that when you smile... all you see are white teeth with no gums. That is not natural and looks odd.
I have witnessed a young adult man with rotten teeth, go from too embarressed to smile, and after picking the correct denturist, come out blossoming with the most beautiful smile. Afterward, he looked like a regular, handsome young man and you would never guess his teeth were false. If your dentist or denturist does not give spectacular results, before you start, go to a number of dentists and or denturists and look at their work.