Does treating sleep apnea improve diabetes management?

Managing diabetes requires a “day-in, day-out” effort to control the factors that affect blood sugar levels. And what might make it even more difficult to manage symptoms is if you suffer from obstructive sleep apnea. A study conducted by a team of scientists, including two professors at the West Virginia University School of Medicine, is working as part of a multi-center project sponsored by the National Institutes of Health.

The team of researchers looked to assess what impact treating obstructive sleep apnea has on diabetes self-management. Let’s take a look at what impact treating OSA has on diabetes self-management for our patients.

What is the connection?

OSA is a common disease that is linked to a range of problems in patients with diabetes and those who do not suffer from this condition. From poor work performance to heart failure, sleep apnea is the reason behind many health conditions. It can even make patients with diabetes less sensitive to their insulin.

In a recent study, researchers split patients in half. One half used a CPAP machine to treat their sleep apnea, while the other half used a mock CPAP machine that looks and feels like a regular machine, but does not impart any of its benefits. Throughout the study patients also underwent periodic blood sugar checks.

While the study has not concluded yet, researchers are hopeful that treatment of sleep apnea will help improve diabetes self-management in their patients. If the study does show that using CPAP machines improves blood sugar control in patients with diabetes and sleep apnea, there will be no reason why we should not screen more of our patients with diabetes for OSA.

If a patient has been diagnosed with sleep apnea, physicians can persuade them to use CPAP machines regularly. This can work with oral appliances too. Patients with diabetes struggle so much with their sugar levels. This study can provide some relief knowing there is another option to help improve their health.

I know this study doesn’t focus on oral appliances. But should look to oral appliance therapy as a safe alternative to CPAP for our patients.

Watch Out for Sleep Apnea with New Hypertension Guideline

Since the new hypertension guideline from the American College of Cardiology and the American Heart Association was released in November 2017, the way physicians diagnose and treat high blood pressure has changed. And with the new guideline comes a section on sleep apnea. Have you seen this new guideline yet?  

What does the guideline say?

The new guideline lowers the blood pressure cutoff for a hypertension diagnosis from 140/90 mm Hg to 130/80 mm Hg. And instead of using the term prehypertension, they recommend using stage 1 hypertension for levels of 130 to 139 mm Hg systolic or 80 to 89 mm Hg diastolic pressure and 120 to 129 mm Hg systolic and diastolic of less than 80 as “elevated.”

For obstructive sleep apnea, it is a risk factor for several cardiovascular diseases, including hypertension, coronary and cerebrovascular diseases. Studies have shown that the presence of OSA is associated with an increased risk of hypertension. It has also been hypothesized that treatment for sleep apnea will have more pronounced effects on BP reduction in resistant hypertension.

What does this mean for dentists?

This means we need to be extra cautious of our patients. Now that the level for hypertension has lowered, we need to pay attention to how that affects sleep apnea and vice versa. The guideline also recommends CPAP therapy as an effective form of treatment for improving sleep apnea, but studies that have been conducted showed that its effects on BP were only small.

Through the guideline, we can accept that CPAP therapy is an option, but what about oral appliance therapy? With the number of individuals with hypertension now at almost 50 percent, we need to pay closer attention to OSA and how it affects hypertension and high blood pressure.

Talk to your patients, include information on the health questionnaire and provide educational materials so that you can continue to provide your patients with the care they need and deserve. On top of that continue to complete advanced education to remain up-to-date with important information.

Pay attention to dental side effects during long-term oral appliance therapy

We understand how successful treatment of obstructive sleep apnea (OSA) can be. However, we need to pay attention to the potential side effects from long-term oral appliance use. If we are aware of these side effects, we can help educate our patients and prevent them from occurring and interrupting care.

What do we do as dentists to help?

I have read several studies that looked at the predictors of dental changes associated with long-term treatment with oral appliances in patients with OSA. From these studies I have found that yes, long-term use can lead to dental complications if we do not educate our patients.

Before you fit your patient for an oral appliance, ask them if they are willing to take at least two-minutes out of their morning to perform exercises. That’s all it takes. Just two minutes (maybe even less) a day to prevent further complications. And, of course, if they do notice any shifts in their teeth, it is important for them to keep you up-to-date. You can provide an adjustment to their treatment or offer other solutions to improve this change.

When you are fitting your patients for their oral appliance, let them know that it is important to perform daily exercises after removal of the device. By performing jaw exercises, it can help prevent the patient’s mouth from becoming stiff or sore. It can also help to prevent lock-jaw and other complications.

It is our duty as dentists to take care of our patients and that means proper education for daily exercises after removing the oral appliance each morning.

What are you doing to help your patients through the oral appliance process? Are you having them perform exercises? If so, what kind? I am interested in learning what everyone is doing to help their patients each step of this journey.

Minimizing mandibular advancement in oral appliance therapy

In a recent study from the journal Sleep Medicine researchers looked at the treatment of obstructive sleep apnea (OSA) with an oral appliance (OA). There is currently no gold standard method to fine-tune the mandibular advancement. This study was created to analyze the effect of gradual increment of mandibular advancement on the evolution of the apnea.

What were the results?

The researchers proposed the use of a multiparametric titration protocol to optimize the mandibular advancement. Thirty percent of the sample population exhibited the best results without any mandibular advancement and low frequency of side effects were observed. There were 36 patients involved in this study (22 were men) with a mean age of 57 years.

The mean mandibular advancement was between 1.7 and 1.5 mm achieving about 50 percent reduction in AHI in 72 percent of the patients. There were also 27 patients with an AHI of 10. Of the 21 patients with moderate to severe OSA, 17 had the highest decrease in the AHI in a mandibular advancement of about three millimeters.

Researchers found that monitoring the subjective symptoms of the patient and objective evolution in the AHI could minimize the mandibular advancement needed for proper treatment of OSA. What are some other ways to help improve oral appliance therapy results with our patients?