C Factor in dental composites

In this presentation, I have explained the importance of C factor from a clinician's point of view

[@DrShahid-Shafi]

Thank you, Thank you so much sir for making this topic very much easy. You're a gem. Thank you again.

[@sabiameer1685]

Clear explanation thank you very much Doctor 👍👍

[@haseebsafi2024]

Amazing vid Doc! Looking forward to more of your valuable lessons:)

[@smartdentistry]

Awesome, thank you!

[@adilali5875]

so greatful that i found your channel today god blessed you

[@vijyantmehrotra8119]

very nice explanation dear

[@avinashvj6545]

Explained in very simple and understandable way. Thankyou sir🙏🙏🙏

[@smartdentistry]

You're most welcome

[@mohammedmagdysakr1001]

Helpful presentation, Thank you sir

[@tahirrahman0331]

Excellent explanation sir❤

[@Harry-xt6zf]

Thanks doc very helpful

[@vaidhehinayak5963]

Great video sir..... Thank you

[@smartdentistry]

So nice of you

[@sonymeher16]

Excellent

[@sunnyshreyit]

Thank you so much sir for this wonderful presentation.🙏🏻

[@smartdentistry]

You are most welcome

[@shivanimittal8297]

Very helpful video

[@smartdentistry]

Thank you ...

[@Hridsandbruns]

So well explained sir

[@sahilacp32]

Realy helpful doc..

[@sanjayve101]

C factor is not the only thing tat warrants incremental buildup....Thickness of restoration,area covered also affects the curing and warrants incremental buildup I think there are so many things about composites that make it a headache for clinicians coz its super technique sensitive.... These things are improving of crse...still long way to go...

[@smartdentistry]

Most people think composite restorations are very easy. But in reality, they are extremely technique sensitive

[@immaculatanwaoziri3165]

I thought the curing depth of the curing light is just 2mm,hence one of the reasons we do incremental build up

[@adiebafarooq5540]

Very helpful

[@smartdentistry]

Glad to hear that

[@tolivich]

Amazing presentation... what book can we read c factor ??

[@Mahmoud_Show]

Thank you 🙏 so much could you please do a lecture on deep margin elevation in class ll compsite

[@maymyatmon2408]

Amazing Video Sir . I have one question about flowable composite and light curable Base liner . Does C factor apply to them The Same ??

[@fatimanabeel7981]

This was great, thanks!

[@smartdentistry]

Glad you enjoyed it!

[@moschganhalimi2090]

thank you so much !!!

[@smartdentistry]

You're welcome!

[@AshokKumar-qu9dg]

Useful sir thankyou

[@smartdentistry]

So nice of you

[@pallavipandavula6724]

👏

[@redafathalla48]

👍👍👍

[@AlavalaVenkateswarlu-g8b]

Class 2 composite bulk filling will satisfy the c factor rule but depth of curing light is only 2mm, so by bulk filling 4mm gingival depth class 2 cavity will leave an un cured composite will affect the strength of the restoration

[@smartdentistry]

Curing depth is not only determined by the curing unit, but also by the type of restorative material. Bulkfill materials can conduct light upto 6 mm. So it does not leave uncured composite.

[@BipolarPumpkin]

Thanks . Bt what should we do in post n core ? How to do it in increments?

[@smartdentistry]

Adhesive Dentistry and Endodontics: Materials, Clinical Strategies and Procedures for Restoration of Access Cavities: A Review Richard S. Schwartz DDS, Ron Fransman DDS, in Journal of Endodontics, 2005 The problem with polymerization shrinkage is amplified in access cavities because of a concept known as C-factor or configuration factor (43, 167). C-factor refers to the ratio of bonded surfaces to free or unbonded surfaces. The higher the C-factor, the greater the stress from polymerization shrinkage (43). Restorations with C-factor higher than 3:1 are considered to be at risk for debonding and microleakage (170). In a class 5 restoration, the ratio might be 1:1. In an access cavity, the C-factor might be 6:1 or even 10:1. In a root canal system obturated with a bonded resin material, it might be 100:1 Kindly read the above article. In root canal...we should use resin with less shrinkage and minimal resin volume....

[@warlord71]

😇😇👍🏽👍🏽

[@queenprincess2902]

How many second should I lightcure the increment is it the same as 20 sconds or only 5 seconds is enough?

[@smartdentistry]

Twenty seconds is mandatory. If you are using very high intensity light curing, composite might get cured in five seconds, but the chances for bond failure is more. I prefer to use moderate intensity light curing unit and curing for twenty seconds per increment and a final cure after finishing the restoration for forty seconds

[@Dentist_Ravi]

DOES IT APPLY FOR FLOWABLE COMPOSITES TOO DR

[@smartdentistry]

Yes. Definitely. For flowable composite, the shrinkage will be more than restorative composite

[@ShreyaMatandoor]

SO SIR MORE THE BONDED AREA? MORE IS THE MICROLEAKAGE?

[@HebaHebaElessawy]

Yes