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    Don H. Lowrance, DDS
    4707 Everhart Road #101
    Corpus Christi, TX 78411
    (361) 851-8274
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Is Snoring Really Harmless?

September 19th, 2011 by admin | ShareThis

By some estimates 80 million Americans snore. That is about one out of every 4 men, women and children. Snoring is a sign that you no longer have an open, unobstructed airway and your breathing is becoming harder. When you breathe in, air is funneled to a narrow portion of your airway. The noise you hear is the vibrating loose tissue in your throat. This is a simplified explanation and does not take into account the vacuum effect which will eventually cause you to stop breathing as the snoring worsens.

This vacuum effect is similar to what takes place on a straw as you suck on a particularly thick milkshake. Once your airway closes, the oxygen level in your brain and all the other organs in your body begins to drop. This happens so quickly that permanent brain damage can occur in as little as 90 seconds after breathing stops.

Remember that this all started with simple but not so benign snoring. So, snoring is far from harmless and is indicated in increase risk for strokes. It also causes marital problems in one out of every 4 married couples.

If you snore, you really need to tell your doctor and ask to have a PSG sleep study done to determine if you already have sleep apnea.

If you just have snoring, it is time to treat it before you have the apnea without knowing it. Snoring can be treated with Oral Appliances, Surgery or CPAPs. Unfortunately, insurance companies do not yet recognize snoring as a disease and therefore do not pay for any procedure. Your PSG would be covered if your doctor orders it.

For more information, call or contact my office online to get the details on how oral appliances can help.

Children Who Sleep Less Are More Likely to Be Overweight

September 3rd, 2011 by admin | ShareThis

Based on a recent study done over 3 decades, young children who do not get enough sleep are at increased risk of becoming overweight (BMJ, May 26).

Children and babies need 8 hours per day in sleep. Decreasing the sleep time by as little as one hour creates a Sleep Deficit that accumulates and eventually leads to changes in nocturnal hormones (endocrine disturbances).

Obesity in children has now reached epidemic proportions and is a cause of psychosocial problems, including low self esteem. Many of these children have diagnosed sleep apnea that means wearing a CPAP. The social stigma among children who have to wear a CPAP to an overnight party or to college is devastating.

Suggested solutions are public education and life style changes.

Dr. Don H Lowrance
Sleep Dentist
Corpus Christi
, Texas

What Is Sleep Debt?

August 19th, 2011 by admin | ShareThis

Sleep Debt is the ratio of wakefulness as compared to your quality sleep time, specifically when your wakeful periods encroach upon the time when you should be sleeping. According to some researchers this debt accumulates (grows) and is not satisfied with one good night’s sleep. As your sleep debt accumulates, you begin to have increased illness, mood changes and deterioration in your ability to perform even the most mundane tasks, not to mention any complex or sensitive work-related functions.

Some research is pointing to low-grade, chronic inflammation that increases your risk for many of the co-morbities that are associated with sleep apnea. This same inflammation is present in people with a high sleep debt, regardless of whether it is caused by apnea or something else.

Sleep Debit is loan that is coming due with much more unpleasant side effects than just huge interests rates.” (Dement 1999).

Dr. Don H Lowrance

Risk Factors Related to Poor Sleep

August 6th, 2011 by admin | ShareThis

Risk Factors are what the medical community calls “co-morbities.” Below are conditions (risk factors/co-morbites) that are found along with Sleep Apnea. Studies are ongoing to determine which came first but we do know that Sleep Apnea increases the risk of various co-morbidities.

Sleep apnea sufferers are more likely to also suffer from:

  • depression
  • obesity
  • heart disease of all types
  • decreased cognition/performance/memory
  • impaired decision making
  • fatigue and work-related accidents
  • car accidents
  • substance abuse
  • suicide risk

 

Life style choices such as sleep hygiene, dietary habits and exercise greatly affect the severity of sleep apnea and related co-morbidities.  If you want to live long and ENJOY life, then make the changes now before it is too late.

Don Lowrance, DDS
Sleep Dentist

How Much Sleep Do I Need?

July 30th, 2011 by admin | ShareThis

There is an important physiological concept called “Bio-individuallity”. That means you are different! You always knew that but it really is true. Your environment “talks” to your genes, making you different from your parents and siblings.

Bio-individuallity means you could need as little as two hours or as much as 12 hours of sleep each day. On average, most adults need 7 to 8 hours of sleep per day. People who report less than 7 hours or more than 8 are statistically at risk of all-cause mortality, cardiovascular disease, and symptomatic diabetes (Spiegel et al., 2005). The American average of 8 to 9 hours per night from previous decades has dropped to less than 7 (National Sleep Foundation 2002).

So, what are the consequences? Continued sleep deprivation has an enormous impact on sleep related accidents. Ask any policeman. There is a “devil to pay” for decreased sleep time and it is being paid from your long term health, quality of life, and remaining years to live (not even counting the enormous outlay of money for treating sleep diseases such as heart failure).

If you have “excessive day time sleepiness” (See my Sleepiness Test), then you need to talk to your physician and possibly have an overnight sleep study done. If you’re diagnosed with sleep apnea, contact me, and I can assist you with sleep apnea treatment using an oral device (also called oral appliance therapy).

Dr. Don Lowrance

Sleep Loss Dramatically Lowers Testosterone in Healthy Young Men

July 7th, 2011 by admin | ShareThis

According to a recent article in the Journal of the American Medical Association, sleep loss can sigificantly lower testosterone levels in otherwise healthy young men.

Wow. That is like a sucker punch below the belt. Testosterone and Men! Men and Testosterone. The two things go together. Without Testosterone we are “girly men”. Not a pleasant picture. So what is going on here and why is our (my) testosterone under attack?

Dr. Cauter, in the JAMA article says that men who sleep less than 5 hrs per night had significantly lower levels of testosterone. That has negative consequences for reproduction (lower sperm count), muscle mass, bone density and sexual behavior. He also says that lower testosterone levels are associated with reduced “well being” and “vigor”. He estimated that skipping sleep reduces a young man’s testosterone by the same amount as “aging 10 to 15 years”.

Overall, sleep deprivation and poor sleep quality disrupt the Endocrine System, affecting many of our less known hormones resulting in increased aging and age related diseases.

If you want to stay healthy or get healthy then good sleep is just as important as a good diet and exercise. If you snore at night and feel tired during the day, you may have Sleep Apnea and should tell you doctor about it now. Don’t let your health be stolen by poor sleep and sleep related problems. Contact my office today.

Extosis – Bony Growths On The Jaw From A Bad Bite, Clenching

June 22nd, 2011 by admin | ShareThis

Take a close look at this picture.

Close-up image of bony growth beneath the gum tissue of the lower jaw. Preoperative image.

Do you see the large bony wing on the lower jaw? That is called an exostosis or a torus. It is bone that has grown on the mandible in response to biting pressures on the adjacent teeth that is beyond their physiological capability to withstand. The body recognizes this and responds by causing more bone to grow to help the teeth withstand the extra pressure. The next question is: what is causing this extra pressure? Sometimes it can be a bad bite (see TMJ disorder) but we also recognize it is also a natural response to Sleep Apnea. When we sleep, our throat muscles relax, just like our arms and legs. These relaxed muscles let extra throat (pharyngeal) tissue sag and close the airway. When this happens, we sometimes respond by clenching. When you clench, not just the muscles in your jaw respond, but also your tongue and your throat muscles. When these tissues tighten, they pull that sagging tissue back up and open the airway.

As a dentist, I routinely look at the tongue for scalloping (signs of clenching) and for tori in the maxilla and mandible. When I see these signs, I begin to get suspicious that my patient has airway problems. If you know you clench at night, have headaches in the morning, a sore jaw and teeth; then you may have sleep apnea. Look for a dentist who is trained in Sleep Medicine Dentistry or talk to your family physician. Those tori will continue to grow until the clenching is stopped. Contact my office to learn more.

Dr. Don Lowrance
Sleep Dentist
Corpus Christi, Texas

Karen’s Sleep Apnea Story

April 13th, 2011 by admin | ShareThis

I am 64 and a dentist.  Five years ago, I had never heard about Sleep Apnea and couldn’t tell you what a CPAP was.  My wife and I were both healthy, not over weight but we were not sleeping well.  Karen, my wife, would wake up 4 to 6 times every night and go to the restroom.  The movement of the bed always woke me up, so I was up 4 to 6 times waiting my turn for the rest room.  We were both hurting for more sleep and tired during the day.  I now know that the tiredness was a Sleep Deficit that we had accumulated from lack of good restorative sleep.

I began to notice that Karen moved her feet a lot, kind of a little twitch before she would wake up and then get up.  I also noticed that the soft whisper of her breathing would stop (she did not snore) for 10 to 20 seconds before she would shift her feet and start the whisper breathing again.  Later, I found out that she was not breathing during those times (sleep apnea) and her shifting feet were arousals that occurred as she started breathing again.  Each arousal meant that her ideal sleep pattern was broken and she would have to start a new sleep cycle again.  You cannot just pick up where you left off in your sleep cycle.

Sleep, good restorative sleep, is 4 to 5 cycles per night of Stage 1, 2 and 3 then REM Sleep.  Each stage is important in its own right and has different brain wave characteristics and physiological activity.  Poor sleep meant that we didn’t make it thru those cycles or stayed stuck all night long in Stage 2 or 3.

Poor Sleep creates sleep deficits and Sleep Deficits mean a Poor Quality of Life.

Out of a need to fix our problem, I took my first Sleep Course at LVI (the Las Vegas Institute for Advanced Dental Studies).  Subsequently, Karen was tested for SDB (Sleep Breathing Disorders) with a PSG over night sleep study at a certified Sleep Center.  She was diagnosed by a AASM (American Association of Sleep Medicine) doctor, who was Board Certified in Sleep Medicine, as having Moderate Sleep Apnea.  She would stop breathing over 15 times each hour.

The usual treatment is with a CPAP.  It is a forced air mask worn over the nose or nose and mouth and makes you breath.  Instead, Karen chose to have a Sleep Apnea Dental Appliance which moves the jaw and tongue forward and keeps the airway open, and therefore no Sleep Apnea.

Ours nights are now calm, peaceful and quiet.  Karen rarely gets up at night and we both feel rested during the day.  The SomnoMed dental sleep appliance goes with us where ever we go.  It has got rid of our sleep deficits, improved our day time alertness, improved our over all health and we both dreaming again—big time.  By the way, a lack of dreaming  is one signs of poor sleep quality and possibly Sleep Apnea.

I am 64 and a dentist. Five years ago, I had never heard about Sleep Apnea and couldn’t tell you what a CPAP was. My wife and I were both healthy, not over weight but we were not sleeping well. Karen, my wife, would wake up 4 to 6 times every night and go to the restroom. The movement of the bed always woke me up, so I was up 4 to 6 times waiting my turn for the rest room. We were both hurting for more sleep and tired during the day. I now know that the tiredness was a Sleep Deficit that we had accumulated from lack of good restorative sleep.

 

I began to notice that Karen moved her feet a lot, kind of a little twitch before she would wake up and then get up. I also noticed that the soft whisper of her breathing would stop (she did not snore) for 10 to 20 seconds before she would shift her feet and start the whisper breathing again. Later, I found out that she was not breathing during those times (sleep apnea) and her shifting feet were arousals that occurred as she started breathing again. Each arousal meant that her ideal sleep pattern was broken and she would have to start a new sleep cycle again. You cannot just pick up where you left off in your sleep cycle.

 

Sleep, good restorative sleep, is 4 to 5 cycles per night of Stage 1, 2 and 3 then REM Sleep. Each stage is important in its own right and has different brain wave characteristics and physiological activity. Poor sleep meant that we didn’t make it thru those cycles or stayed stuck all night long in Stage 2 or 3.

 

Poor Sleep creates sleep deficits and Sleep Deficits mean a Poor Quality of Life.

 

Out of a need to fix our problem, I took my first Sleep Course at LVI (the Las Vegas Institute for Advanced Dental Studies). Subsequently, Karen was tested for SDB (Sleep Breathing Disorders) with a PSG over night sleep study at a certified Sleep Center. She was diagnosed by a AASM (American Association of Sleep Medicine doctor who was Board Certified in Sleep Medicine) as having Moderate Sleep Apnea. She would stop breathing over 15 times each hour.

 

The usual treatment is with a CPAP. It is a forced air mask worn over the nose or nose and mouth and makes you breath. Instead, Karen chose to have a Sleep Apnea Dental Appliance which moves the jaw and tongue forward and keeps the airway open, and therefore no Sleep Apnea.

 

Ours nights are now calm, peaceful and quiet. Karen rarely gets up at night and we both feel rested during the day. The SomnoMed dental sleep appliance goes with us where ever we go. It has got rid of our sleep deficits, improved our day time alertness, improved our over all health and we both dreaming again—big time. By the way, a lack of dreaming is one signs of poor sleep quality and possibly Sleep Apnea.

Snoring and Snorting

April 4th, 2011 by admin | ShareThis

Snoring and snorting are NOT  minor aging problems or a simple nuisance.  It is a very loud warning that your health is failing.  How many of us, if we had a car that made a noise that was loud and disruptive (and I am not talking about Rap music here) would ignore it.  No way.  We would have the car in a shop to fix the problem before it breaks down or sell the car.

Yet, when we snore and snort so loudly that our spouse sleeps in a separate room, your hunting buddies put you out on the porch at the lease, or your dog won’t stay with you when you sleep; we just mark it up to aging and ignore what it really is—a signal that disaster is coming.

Let me give you a few scientific facts about snoring:

▪   snoring means your airway is clogging up and you are not getting adequate oxygen

▪   snoring is an independent risk factor carotid artery stenosis

▪   snoring can lead to paralyzing strokes (that scares me more than cancer)

▪   snoring changes the texture of tissue in your throat (makes it sag)

▪   snoring is progressive (it just gets worse) and leads to sleep apnea

▪   snoring disrupts sleep and leads to excessive daytime sleepiness and accidents

▪   snoring affects all ages (including children)

▪   snoring, at a minimum, is a social problem

▪   snoring can literally cut years off your life

Again, snoring and snorting are warning signs like the indicator on your car dashboard,  a klaxon on a ship, or a tornado siren.  You don’t ignore it—you get treatment for it or suffer the consequences. Contact me today if you have a snoring problem.

Dr Don H Lowrance
Sleep Apnea Dentist
Corpus Christi, TX

Are Zeitgebers Keeping You Awake At Night?

March 28th, 2011 by admin | ShareThis

Man watching television in bedNo, they are not bedbugs or ghosts but a german language term for “time givers”. This is the word given for external signals that can, and often do, spoil our sleep. I read about Zeitgebers recently in an article about our electronic accessories entailed “Are our Gadgets Keeping us awake at night?”.

The answer to that question is YES. Our day/night sleeping cycles and hormone production cycles are called Circadian rhythms. These are our built in biological clocks enable us to sleep at night and be awake during the day. Light (a Zeitgeber) can delay melatonin (a sleep promoting hormone) production, making sleep more difficult and increasing our sleep deficit.

Sleep deprivation and sleep deficits are a big deal. It is the cause of 100,000 car crashes each year and 1,550 deaths (Center for Disease Control statistics). Sleep Apnea is a giant contributor to sleep deprivation as well as snoring.

Light from our TV’s, our phones, our clocks, our reading lamps and our night lights ALL cause a delayed production and melatonin and a disruption of our Circadian rhythms.

Good Sleep Hygiene includes setting a definite time to be in bed and a time (after which) all electronic accessories are off (usually an hour before bedtime). Light reading under a soft light is ok or listening to relaxing music but no TV or bright lights. Try to make your bedroom as dark as possible (within reasonable safety) and keep the curtains closed so car lights and street lights don’t filter in. As for snoring and sleep apnea, a custom fitted oral appliance (some patients refer to them as “mouthpieces“) can be used to silence the snoring and improve everyone’s sleep hygiene.

You can read more about this on the National Sleep Foundation website.