Orgasm denial or just controlling orgasms is one of those things I don't feel works very well for the majority of women. Oddly I feel from things I have read, it seems to work better for males than females, but that might be a myth or not accurate.
Every dominant I have ever been with has probably tried some orgasm denial or controlling orgasms with me at some point, but I am one of those women where the end result isn't usually what the dominant is wanting. It is more of a use it or lose it kind of thing for me. So denying orgasms for me, just turns off my sexuality. Controlling when I masturbate or am given pleasure where I am told I can't have those things - again usually just turns me off sexually.
I can think of one time orgasm denial worked with me and that is with my ex-husband. He had sex with me and touched me, but wouldn't let me orgasm or touch myself. He really kept my sexual hunger right there on the edge because he was being sexual with me every day - often multiple times a day - just not letting me orgasm. It was about 5 days and then he let me orgasm. He was working up to a special occasion by making me wait for it - I think it was the anniversary of our first date. It did create a hunger in me that when I did orgasm it was very intense. But again he kept me sexually on edge.
In my history, when I have had dominant do orgasm denial it is more along the lines of - being told I can't orgasm for a set amount of days/weeks. There isn't usually a lot of sexual interaction so that sexual need isn't there. It fades and just makes it very hard for me to orgasm then when that stretch is done. It doesn't create anticipation, build my sexual frustration or make me crave sex or his cock more - it makes it fade.
The same thing happens when I am told I can only orgasm when I ask or am told. For me....it was hard because I am sexually submissive and if my dominant tells me to masturbate one night and then doesn't the next - well in my mind he doesn't want me too and I want to please so I don't ask to masturbate unless really I feel like it is going to fade soon if I don't. But even then if it is last moment for me - it is harder for me and not as pleasurable. So...again...if I am not masturbating or having sexual interaction with someone then it will fade.
For me, being told I can't orgasm or having a set amount of time where I can't orgasm or have sexual pleasure, will make my sexual appetite shut down and then make it harder to achieve orgasm, to get wet or turned on.
Controlling a submissive's orgasms or sexual pleasure, it often seems like being told no is the idea of control. But being allowed is a form of control too. As a dominant you are allowed to say yes or no. I am allowed to orgasm during sex when I can. I am allowed to masturbate whenever I want. Even if it isn't Master's hand, implements he wields, or his voice creating the orgasm, he is the one that allows me sexual pleasure and energy. If Master didn't want me too, he could say no, but he said yes. He had the right to tell me yes or no. I just couldn't decide on my own - he decided because he has control of me.
Ultimately Master has found that he feeds off my sexual energy. To keep me sexual - helps his sexual energy. So allowing me to have sexual pleasure - gives him the end results he desires. And I am very very thankful he wants me to be sexual.