Can saline solution mimic the look of fillers in the cheek area so I'm not stuck with it if I don't like?

Injection of saline to the desired area of fullness can give you a rough idea of what a filler might look like, but because their consistencies are so different, it would be an imperfect test method.  However, if you are hesitant to just go ahead and try a filler (most are of course temporary as well), it might be a reasonable option.  I've attached a web reference about fillers.  Good luck,.

Yes this can work to simulate the results you can obtain from fillers.  However, it is not as natural looking and isn't a good representation in my opinion.  I suggest going to a facial contouring expert for filler injections and the results will be natural/  I suggest getting an HA filler as it can be reversed if you do not like the results.  Best, Dr. Emer.

Saline solution can be injected in the area that you would like to get fillers, and it can give you a close idea about what the results can be. There are many filler options and they have different indications and they may look different once they are injected.

Yes. In general, saline can give you an approximation of the results that a hyaluronic acid filler such as Voluma would create. However, the physical properties of water and hyaluronic acid are very different and so the results will be just an approximation. Further, a major component of the cost of filler treatment is the physician's time. While saline is cheap your physician injector's time is not. Therefore, this might be a very expensive option of achieving a brief glimpse of what fillers can achieve. I hope this information is helpful for you.Stephen Weber MD, FACSDenver Facial Plastic Surgeon

This is a novel idea but you have to remember that the fillers are viscous solutions and their physical properties give the characteristic aesthetic outcomes that you see following injection. It is somewhat complicated to explain but every type of filler 'class' has optimal sites of treatment - some are used for the lips, others lip only and tear troughs for their biophysical properties and Tyndall effect and so on ... Your idea is a good one but unfortunately is not practical and will not likely give you proper feedback as to what it will look like.