Nocturnal Enuresis commonly called bed wetting occurs during sleep and is a common symptom among children with sleep apnoea and breathing problems such as nasal obstructions which cause children to breathe through the mouth instead of the nose.
Possible explanation can be that insufficient blood saturation with the oxygen decreases the production of antidiuretic hormone and affects the smooth muscles of the bladder.
Normal bladder control should occur by age 3-4. It is cindered medically abnormal when a child over age of 5 years chronically wets the bed.
From 15-20% of all5 year-olds and 10% of all 6-10 years olds chronically wet the bed. For unknown reasons boys do so more often than girls.
Children with ADHD Attention Deficit Hyperactivity Disorder are 2 ½ times more likely to be bed wetters. (Southern Medical Journal-1997)
However, many studies shown that by elimination or greatly reducing of nasal obstruction and restoration of nasal breathing, the symptoms of Sleep Apnea such as nocturnal enuresis, were reduced or totally stoped.
Used method was a rapid maxillary/palatal expansion, making top jaw bigger, as narrow maxilla causes the nasal airway obstruction.
A retrospective study reviled that children with nocturnal enuresis reduced or stoped their bed wetting habit, 1-4 months after maxillary expansion treatment with RME (rapid maxillary expansion).
Published in 1998 study revealed that 7 out of 10 non-responding to conventional treatments chronic bed-wetters age 8-13, improved within 1 month of rapid palatal expansion.(Angle Orthodontics-1998)
Some children “grow-out-of” bed wetting as their jaws and airway grow.
Early Functional Jaw Orthopaedic treatment, which turns about 80% of mouth breathers into nose breathers, can reduce or stop bed-wetting in about 80% of those from age 4-13.
Dental treatment may be 5-7 times more effective than doing nothing, considering that only 15% of bed-wetters spontaneously stop each year.
Research suggests the earlier FJO treatment starts, the more likely it will help.