Crown Preps

[Kung Foo]

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Hellloooooooo fellow dent's living this crazy life


So the first years at Ohio State want to know: How many of you all did crown preps (for MCC's) in your first year lab curriculium? We have a class on them this quarter, and the prof started out by telling us how miserable they'll make our lives, and that most schools don't require first year students to do them. After our initial panic (and disasterous first lab period.... with lots of "wow, your preps are hideous, but don't give up hope - just your weekends to practice" pep talks from the instructor), we now want to know if he was really portraying things accuratly.

Weigh in, and let us know when YOU had your first crown prep class!


😀 Thanks!!!


(side note: after many hours in the lab... i think i have them semi under control... on ivorine teeth... on a post.... in the mandibular arch *sigh* so far to go... )

 

[bitecys]

to quote our prof of fixed pros that we started last week: "Welcome to arts and crafts from hell. You will hate this class, but by the time you're done you'll be damn good making crown preps and provisionals."

This year they've changed the curriculum, we don't actually do much lab work making crowns as they're "training us to be dentists, not lab techs." The D2's here are extremely jealous as they assert that making a crown sucks.

 

[Yah-E]

we don't have Crown & Bridge until first semester second year! We just started the restorative courses this semester doing Class I, II, III, IV, and V preps.

Side note: at Nova, we're required to use the rubber dam EVERY time we work on the manniquin! Pain or not pain? I don't mind it.

 

[DrJeff]

Here's a statement that will scare alot of you. In time, you'll come to think of crown preps as easier than almost any cavity preparation!😱 You'll find that bur manufacturers make such a huge assortment of shapes that there is a bur out there with the specs you want to make it real easy.

The key to making it easier and easier is develop a set pattern, and keep repeating it. For example, I will always do occlussal/ incisal depth cuts 1st, then occlussal/incisal reduction. Then I'll put my bread and butter bur in the handpiece, a flat ended tapered fissure extra coarse diamond with a 6 degree taper and do the 360 degree preparation and functional cusp bevel if appilicable. I then finish with a "micro diamond" tapered point from my fisurotomy burs to finish my cavo surface margins and remove any unsupported enamel rods.

Start to finish hand piece time 1 to 2 minutes

With practice, it will come, but find a pattern that works for you, and then keep repeating that pattern.🙂

 

[Big_Poppa DDS]

Kung Foo, At marquette we had fixed pros in first year. One of my classmates is a grad pros student, who teaches your class - you'll know him he is the only marquette grad in the program - if he gives you a hard time ask him to show you his first model he ever poured up!

I am still trying to develop a good pattern I usually start with

interproximals
pack a cord (or at least try to)
depth cuts and circumfirential reduction
occlusal depth cuts and reduction

I am still fairly inexperienced so I still tend to putz around with my preps a lot, but I do know I like to see my margins. Pros is a pain I got my only C's in dental school in pros.

 

[DrJeff]

Big Poppa, when you're doing your crown preps, try the occlussal reduction portion first. That way when you're doing your interproximals/buccals+linguals, the burs that you're using will be cutting a smaller amount of tooth, and it will pass through the tooth easier with a greater amount of torque from the handpiece. Plus, you'll have less tooth in the way to block your vision of the interproximals.

 

[Kung Foo]

Big_Poppa DDS: are you talking about dr. purcell? He's my bench instructor for lab, and the man is fantastic - very helpful, thorough and concise. I'm pretty sure he went to marquette, and our bench really lucked out by getting him as an instructor - comparativly, he's one of the best instructors out of the bunch.... maybe because he hasn't had time to develop into a megalomaniac 😉

....lab practicals start next week....... after today i've decided that i am defiantly NOT fond of amalgams! Well, mostly just not fond of feeling like I don't know what i'm doing =)

 

[Kung Foo]

Yah-E - do y'all have those fancy salivating dummies @ Nova?

... rubber dams depend on the class - currently we only have to use them (along with rubber heads) for the posterior operative dent. course (drill 'n fill), not for crown preps (and not for the occlusion class, since that's just waxing on casts)

I have high hopes for quickly developing mad skills in the lab classes ...


=)

 

[Big_Poppa DDS]

Kung foo- That's him. He knows how poorly I did in that first year class, and how that really doesn't mean a thing. Just for some encouragement we were graded from 1 - 5, 3 being a pass - I think in that first year class I got a 2 and sophmore class I got mainly 3's. On the CRDTS board exam I recieved perfect scores for my crown preps.

It just takes practice.

 

[Itsmoney]

KUNG FOO,

LOOOOL...DON'T LET DR. KERBY SCARE YOU, HE'S REALLY A FAIR GUY, HE SCARED US TOO OUR FIRST YEAR, BUT WE ALL DID FINE 🙂
ACTUALLY NOW CUTING CROWNS IS ONE OF MY FAVORIT PROCEDURES IN DENTISTRY. JUST WATCH OUT FOR THOSE UNDERCUTS (USE YOUR PERIO PROBE LOOOL), REDUCTION GUIDE, AND DON'T OVER TAPER, AND DON'T MAKE YOUR SHAMFER TOO WIDE, AND YOU WILL BE FINE 🙂 HEHEHE LOOOOL @ GOOD OLD DR. KERBY......BRINGS BACK GOOD MEMORIES
GOOD LUCK
ITSMONEY

 

[Kung Foo]

ItsMoney -- 😀

Thanks for the encouragement!!!


lol - today's words of encouragement from Kerby today during the practical: Don't worry people. There's always business school.

(which earned a collective groan)


🙄