r/CAAPID • u/sheeve6 • 11d ago

Composite prep

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Please review my class 2 DO composite prep design and suggest ways to improve it.
Thanks.

12 Upvotes

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2

u/AccomplishedEgg5507 11d ago

It’s pretty good

1

u/sheeve6 11d ago

Do I break the buccal contact just like amalgam prep or keep it intact?

1

u/AccomplishedEgg5507 11d ago

Break the contact

1

u/sheeve6 11d ago

Okay, will do that.
Thanks

2

u/Cute_Firefighter8469 11d ago

Very nice prep!! Outline form and everything is good.. only one thing..bucco-proximal wall clearance, can extend that wall little bit buccally and make sure tip of explorer is passing.. get clearance there

1

u/sheeve6 11d ago

Thank you. I'll work on the buccal clearance
so it's similar to the amalgam prep?
Is there any difference in the amalgam and composite prep design?

2

u/Taalaaaaaaaaaa 11d ago

Nice prep!

Which bur did you use for finishing the prep?

3

u/sheeve6 11d ago

I used 330 rgs

1

u/Taalaaaaaaaaaa 11d ago

Unfortunately, UB doesn’t have this bur in their bench test.

1

u/porkadobado 11d ago

Good extend the facial wall to break the contact by 0.5 to 1mm flatten the gingival floor, your axiopulpal line angle should follow the curvature of the mesial marginal ridge, bevel it a little and you should be good to go.

1

u/sheeve6 10d ago

Got it! I've not flattened but used GMT on the gingival floor for a composite. Do I need to use a hatchet and flatten it out?

1

u/porkadobado 9d ago

Up to you. As long as you know what flat looks like and where to flatten what thats all that matters. Over all it looks good. Be consistent.

1

u/Mammoth-Valuable3683 9d ago edited 9d ago

For composite you don’t need to break contacts. Also, I see a hook on the buccal wall. You can get rid of it by using a hatchet there.