Your OSA condition is generally diagnosed by a physician. OSA can be diagnosed in two different ways:
1. Sleep Lab Study
2. Out of Center Sleep Study
Your sleep lab studies are the best way to conclude OSA. However, studies have identified that more accurate results come from out of center sleep study (also termed as Home Sleep Study). This is generally considered correct as a homely environment always bags the best results and diagnosis while the patient is in natural sleep.
Your dentist can pick out the best way to diagnose your condition.