Monthly Archives: November 2006

How to Wax Up That Perfect Tooth

This is how I do it:

1. Place sticky wax all over the typodont tooth thet you will be waxing on, a nice thin layer.
2. Place your sticky waxed tooth into the typodont and get a visual of the mesial and distal contacts. In fact…if you want, heat your pkt get some wax on it and place it on the tooth where the contact will eventually be. That way you know where to place wax.
3. Pull your tooth out and add some wax to build up the contacts and marginal ridges.
4. After making them contact nice, build up the sides of the tooth. Build up the buccal and lingual and make them nice and proportionate.
5. Then place the tooth back in the typodont (you should be doing it often to make sure you are adding to the right places) and look at the cusps on the opposing teeth. Draw an imaginary line connecting all of these cusp tips. Your tips should fall on this line. Drip a little wax onto this line while it is in the typodont. Then take it out and add wax until they are nice and round. Next comes the carving.
6. We get to have the tooth we are waxing, our typodont and the tooth that would normally go in its place as a model. i hold up both teeth (my typodont real tooth and the wax up) and view their silhouettes. If I see anything differ from the typodont tooth on my wax up, i carve or add wax. I work one side at a time. Look at the mesial, then distal, then buccal then lingual.
Then I look at it from the occlusal. I check my embrasures, contacts, contours, etc.
7. Lastly I work on the occlusal surface. Place that wax up in the typodont and put the teeth together. Where ever there is contact i shave it away. I use my fine tipped pkt to draw general lines of anatomy in the tooth and then carve away with some other instrument.
8. I carve with a thin layer of vaseline on my instruments. Makes it easier. I shine with some vaseline and a paper towel folded up into a fine point. Soap works too, nose grease (but GROSS!), anything hydrophobic (same properties as wax) will shine it up.
9. Keep checking occlusion, canine guidance, etc.

ABOVE ALL: Keep practicing and remember that it is JUST WAX! The things you should really get good at are the composite and amalgam. From EVERY upperclassman I have EVER talked to they have all said that working in the mouth is easier than working on plastic typodont teeth. Keep that in mind.

Working With Composite and Handpieces

We recently had a visit from star dental in our pre clinical room so we could get trained using our handpieces. We have a high speed titanium hand piece and a low speed hand piece that comes with a torque converter. There are a couple of types of heads for the low speed. Both units are lubrication free instruments. This makes it quite nice to take care of. They have ceramic ball bearings for high heat and friction resistance. After star dental talked to us about proper use and care we were all given three fake molars with amalgam and composite fillings. The goal: use our new handpieces to remove the amalgam and composite. I heard thst this was easier done on real teeth and I think that this is true. There were a few ‘nicks’ in the plastic teeth that might have made a real patient question my skills. :o
drilling

Here is a shot of my drills. The highspeed is on the right, low speed in the middle, and air/water on the left. I sit right across from my buddy from undergraduate and as a joke I leaned over and squirted his crotch with water. It was funny for about 5 minutes…he couldn’t tell where the water was coming from. :) Sorry Cory! He was a good sport about it.

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What is the Course Load Like in Dental School?

Everyone who is about to start dental school always wonders how much they will have to read, how much they will have to learn, how hard it is, etc. I can speak for the first semester at Temple, so if anyone else has something to add, please feel free to contact me.

Our schedule is as follows:

Monday: 8:00am-11:30am

Tuesday: 8:30-11:30, 12:30-4:30pm

Wednesday: 8:30-11:30, sometimes (like 5) 12:30-3:00pm

Thursday: 8:30-11:30, 12:30-4:30pm

Friday: 9:00-11:30am, optional Biochemistry review from 12:30-2:30 pm

We take the following classes: Biochemistry, Histology, Restorative Dentistry, Behavioral Science, Restorative Pre-Clinic, and Preventive Dentistry.

The two biggies are Biochemistry and Histology. As you can see from the following picture so far we have had plenty to do.

homework

I put the ruler in there for reference and the books have been basically polished off after the first two tests (although there are a few more chapters in Woelfels dental anatomy). It got a little stressful last week when we had Biochem and Histology tests the same week, along with a biochem quiz and a preclinic practical wax up on a mandibular 2nd molar (#31).

Remember that this is the EASY semester at Temple. One more month and you can easily add 6 more inches to this pile. This does NOT include the dental materials book, or the biochemistry book. It is also fair to say that the preventive dentistry class and the behavioral science class do not add very much as far as volume to the picture above. Maybe a centimeter combined. All of that mass of papers is basically biochemistry, restorative, and histology. Histology being the 6 credit monster that it is contributes most to the pile.

All in all it has been manageable, but the course work must be approached little by little and I definately would not recommend procrastinating. It might work here and there, but imagine trying to refreshen your memory of the above shown notes with a week to study for finals!

Here is shown a more manageable way to study…bit by bit. The following is a picture of all the notes for our 2nd biochemistry test:

biochemistry

Studying this and committing it to long term memory is much easier than trying to cram a foot and a half of notes into your brain in a week and hoping to do good.

Our last histology test was basically a big final of everything I ever learned I undergraduate histology. It still wasn’t that bad and it was doable so long as it was approached right.

I’ll let everyone know how finals are later :)

Tips On Using Acrylic to Make Temporaries

No doubt you will be using acrylic during your first semester in dental school. Learning how to use acrylic is fundamental because your competancy in it’s use will be graded in your board examinations (not all board require it though…I think…please enlighten me), but more importantly, your mastering of acrylic will be important for your patients. Many of you will say, well what do you know? You’ve been going to school for two months! You’re right. I am not implying that I have mastered acrylic, but I merely want to share what I have learned that has helped me so far. I would also like to open this discussion up for any suggestions you may have in creating the perfect margin or contact, etc. Feel free to leave a comment below.

TIP #1

Always coat your little pestle with LOTS of vaseline. If your acrylic hardens in here is can be very difficult to remove. Even a thin coat of acrylic in the pestle is hard to remove! Also NEVER use a sharp instrument to remove the acrylic. It will scratch the glass surface and turn your pestle into a crappy bowl. Scratching your pestle will make it hard to mix and remove acrylic. Here is a nice picture of the pestle:

crucible

It has also been mnetioned that you can use a rubber pestle to mix the acrylic in.  The kits at Temple should have a rubber bowl in it.  It is the same size as the glass ones and has a suction cup on the bottom.  If you use this then you don’t have to use vaseline.

TIP #2

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