Archive for December, 2009

Making Invisalign work better 3 – Better impression techniques

Saturday, December 5th, 2009

Bad impressions slow the whole process down so here’s a few tips for perfect impressions every time:

Always check the position of the wisdom teeth. Invisalign trays are not long enough to capture most wisdom teeth. The trick is to overload the trays at the back and mould then support the heavy body material with your fingers until set. Then when you apply the light bodied material it will be trapped in the first impression and get a good result first time.

Mix the heavy body material quickly or the seperating wafer won’t stick to it and will dislodge on insertion.

Check the size of the tray in the mouth first. Really narrow arches require the smallest trays. These are inevitably too short so you overload the back and support the heavy body material as when dealing with wisdom teeth as outlined above.

When using the light body for the upper arch Ialways start off with my patient lying flat. Dry the teeth so the light body sticks to them, apply the light body then sit the patient up before placing the tray in the mouth.

For patients with a bad gag reflex use an anaesthetic spray to entirely numb the soft palate before doing impressions.

Heat the light body on an anaesthetic cartridge warmer. This speeds the setting time making it more pleasant for the patient.

Making Invisalign work better 2 – Age matters

Saturday, December 5th, 2009

Just as any orthodontist knows (time to mention that dentists doing invisalign should also be trained with fixed and orthopeadic orthodontics if patients are to get the best treatment) the older the patient the less easy it is to move teeth. Now I’ve treated teenagers right through to a couple of 70 somethings and everyone in between. And whilst you can always get improvements even with much older patients, younger patients with softer bone treat better with a full range of predictable tooth movements. The trick is to realise this and to plan your treatments accordingly. Do you really expect to get much intrusion with older patients? Are you really going to try to rotate canines and heavily twisted premolars annd molars? It just wont happen, so I focus on the movements that will, and bingo! – great results and happy patients every time. The system is great, you just have to know how to use it.

Making Invisalign work better 1 – Alinger Chewies

Saturday, December 5th, 2009

I came across this tip years ago and it has made all the difference to treating patients with invisible braces. Basically when you insert an aligner it seats about 90% of the way. Which means that it is not pushing the teeth exactly as the computer predicted, so the resulting movement per aligner is poorer than anticipated. Subsequent aligners progressively fit less and less with the typical end result being less than predicted at clincheck. The solution to this is to use Aligner Chewies made of soft rubber to seat the aligner more fully, EVERY time the aligner is put in the mouth. The resulting fully seated aligner pushes the teeth as the computer predicted aligner after aligner, meaning that better results are achieved in less time, with fewer refinements at the end of treatment.

What causes bad breath?

Saturday, December 5th, 2009

Most people who have bad breath are unaware that they have it. The good news is that bad breath can usually be eliminated with some simple steps.

Bad breath is mainly caused by odor-producing bacteria that grow in the mouth. When you don’t brush and floss regularly, bacteria accumulate on the bits of food left in your mouth and between your teeth, especially under the gums and on the tongue. The decomposing bacteria release volatile sulphur compounds. The volatile sulphur compounds released by these bacteria make your breath smell. Other causes included blocked sinuses, dry mouth and stomach disorders. The trained nose can distinguish the different smells at a distance – ah the joys of being a dentist!

Certain foods, especially ones like garlic and onions that contain pungent oils, can contribute to bad breath because the oils are carried to your lungs and out through your mouth. Smoking is also a major cause of bad breath.

HoThere are lots of myths about taking care of bad breath. Here are three things you may have heard about bad breath that are not true:

Myth #1: Mouthwash will make bad breath go away.

Mouthwash only gets rid of bad breath temporarily. If you do use mouthwash, look for an antiseptic (kills the germs that cause bad breath) and plaque-reducing one with a seal from the American Dental Association (ADA). When you’re deciding which dental products to toss into your shopping cart, it’s always a good idea to look for those that are accepted by the ADA. Also, ask your dentist for recommendations.

Myth #2: As long as you brush your teeth, you shouldn’t have bad breath.

The truth is that most people only brush their teeth for 30 to 45 seconds, which just doesn’t cut it. To sufficiently clean all the surfaces of your teeth, you should brush for at least 2 minutes at least twice a day. Remember to brush your tongue, too — bacteria love to hang out there. It’s equally important to floss because brushing alone won’t remove harmful plaque and food particles that become stuck between your teeth and gums.

Myth #3: If you breathe into your hand, you’ll know when you have bad breath.

Wrong! When you breathe, you don’t use your throat the same way you do when you talk. When you talk, you tend to bring out the odors from the back of your mouth (where bad breath originates), which simply breathing doesn’t do. Also, because we tend to get used to our own smells, it’s hard for a person to tell if he or she has bad breath.

If you’re concerned about bad breath, make sure you’re taking care of your teeth and mouth properly. Some sugar-free gums and mints can temporarily mask odors, too.

If you brush and floss properly and visit your dentist for regular cleanings, but your bad breath persists, you may have a medical problem like sinusitis or gum disease. Call your doctor or dentist if you suspect a problem. They can figure out if something else is behind your bad breath and help you take care of it.