It can also be a primary reason for you to abandon the cpap therapy if you don t understand why dry mouth appears in your case. Sleep apnea can wreak havoc on the respiratory tract there is no doubt about that. Sleep Apnea The Facts About This Important Sleep Disorder How It may be sleep apnea. Dry mouth and sleep apnea . Typically cpap induced dry mouth is either caused by the habit of mouth breathing during the night or an ill fitting mask that may leak the air out of the mask. If your cpap machine the prime cause for dry mouth consult your doctor or dentist to replace the equipment and use a better fitting mask. Saliva works to help our bodies stay healthy it moistens our mouth protecting our oral cavity from bacterial and fungal infection as well as acting to cleanse and digest particles of food. Understanding what s going on in your mouth when the pressurized air gets inside is the best way to prevent dry mouth from occurring. What to do about cpap dry mouth by amy fr...