overhang

[toothdriller2k17]

so i've done about 13 class 2 restorations so far, and i'm starting to see that some of them have overhang (radiographic). i'm puzzled as to why this happens since i follow the procedures to do the restorations and check my restorations with floss afterwards (no breaking in the floss).

do you guys often find yourself having to redo some/a lot of restorations? definitely a confidence breaker 🙁

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[Daurang]

so i've done about 13 class 2 restorations so far, and i'm starting to see that some of them have overhang (radiographic). i'm puzzled as to why this happens since i follow the procedures to do the restorations and check my restorations with floss afterwards (no breaking in the floss).

do you guys often find yourself having to redo some/a lot of restorations? definitely a confidence breaker 🙁

You're too slow so the amalgam set before you can carve it between with carver or use floss to remove the interproximal excess. Maybe you're using wrong size wedge. Just more practice will make it perfect.

 

[cmcner]

For class II overhangs it's all about the matrix. You need to see the box sealed by the matrix before you start packing material. If it's sealed and wedged or tightened no material should be able to flow out and create an overhang

 

[toothdriller2k17]

@Daurang @cmcner i think maybe it is the wrong size wedge to be honest. and this has to do with composite restorations for the most part

i also find it more prevalent with maxillary restorations. and while it may be more common than i think, faculty do a pretty good job of making me feel like crap about it..it's weird though, i find it easier to do a crown preparation than to do a class 2 filling

 

[dyesht]

@Daurang @cmcner i think maybe it is the wrong size wedge to be honest. and this has to do with composite restorations for the most part

i also find it more prevalent with maxillary restorations. and while it may be more common than i think, faculty do a pretty good job of making me feel like crap about it..it's weird though, i find it easier to do a crown preparation than to do a class 2 filling

Are you using a ring system or toffelmire?

 

[toothdriller2k17]

Are you using a ring system or toffelmire?

i'm only using tofflemires for larger restorations, and i'm starting to use the ring system more these days in general

 

[Daurang]

@Daurang @cmcner i think maybe it is the wrong size wedge to be honest. and this has to do with composite restorations for the most part

i also find it more prevalent with maxillary restorations. and while it may be more common than i think, faculty do a pretty good job of making me feel like crap about it..it's weird though, i find it easier to do a crown preparation than to do a class 2 filling

Don't feel bad. I bet you half your faculty can't even do a decent class 2 filling, too.

 

[wildzodiac]

It's all about how you seat the matrix. Seat the matrix well and burnish the matrix where you want to establish contact. Interproximal strips used below the interproximal contact area may help.