New research that was presented at the 20th Anniversary Meeting of  the American Academy of  Dental Sleep Medicine (AADSM) in Minneapolis quantified the efficacy  of mandibular advancement splints (MAS) using a self-administered,  at-home device to monitor snoring and sleep-disordered breathing.

The current study used the Sonomat, a portable, unobtrusive device  that has sensors contained within a mattress overlay. These sensors  measure apnea hypopnea index (AHI) by detecting and recording snoring,  breathing, and body movements.

Results show that MAS treatment reduced the average AHI from 10.3  events per hour to 3.8 events per hour. The respiratory event movement  index (RMI), which records more types of events than AHI, was reduced  from 15.9 events per hour to 7.6 events per hour.

There was also a decrease in the percentage of patients who snored  from 38% without the MAS to 15% with the MAS. Snoring decreased overall,  but 12 of the 42 subjects still snored for greater than 25% of the  night, with several having substantial increases in snoring.

“The primary findings in our study were that MAS devices were  effective in the treatment of obstructive sleep apnea (OSA ) by reducing AHI in moderate and severe  obstructive sleep apnea (OSA ) patients,” said principal investigator and lead author Joachim  Ngiam, BDS. “Overall, significant reductions in snoring were found to  occur with MAS therapy with greater changes seen in OSA patients.”

The study involved data from 42 men and women over two consecutive  nights. The subjects slept the first night without the MAS and the  second night with the MAS advanced to 70% of maximum jaw protrusion.

Despite favorable reductions in AHI with MAS treatment, snoring may  persist and patients may question treatment success, indicating a need  for quantification of therapy efficacy.

“Although significant reductions in AHI and snoring were observed,  residual snoring may persist or even increase in some patients,” said  Ngiam. “A significant proportion of patients, 29%, still snored greater  than 25% of total sleep time, with several having substantial increases  despite MAS therapy.”

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Filed under: Dental AppliancesMobile DevicesObstructive Sleep ApneaOral AppliancesPortable DevicesSleepSleep ApneaSleep Apnea DevicesSleep Apnea NewsSleep Apnea TreatmentSleep Disordered BreathingSleep ProblemsSnoringSnoring Solution

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