Alginate Impressions

[@avarachika]

I love watching your videos. They're insightful and you speak clearly and just slow enough.

[@StephanieDerfus]

Glad you like them!

[@pp4559]

Everytime i need to review some labwork i somehow find my way back go your channel, thank you

[@TheScienceofBeauty]

Thank you Stephanine !!!!

[@potatohead4527]

I have done it more than 20 times and am still bad at mixing, what should I do?

[@StephanieDerfus]

It takes A LOT of practice, I wasn’t very good the first 50 times! You can try a different technique that I’ve seen other assistants use with success- put the powder and water into a ziplock bag and squeeze/ knead it by hand, then cut a corner of the bag and squeeze it into the tray. Keep practicing, you’ll get it!

[@Furkan-eb9es]

Hey Dear Stephanie Derfus. What is the aim of wiping material on occlusal surfaces.

[@StephanieDerfus]

Wiping some alginate on the occlusal surface will help capture more detailed anatomy by pushing the material into the grooves and fossa of the occlusal surfaces; this reduces trapped air and getting air pockets on the occlusal anatomy.

[@Furkan-eb9es]

@@StephanieDerfusoh thanks for reply . Greeting from İstanbul as a dental student

[@mahamerujatim9728]

thanks sister

[@roehaus1]

Great video... can I use the same method and material to do a lower gum impression?

[@StephanieDerfus]

Yes you can! The tray is shaped difference - its a "U" shape for the mandibular arch.

[@sangavitamilmani9915]

I'm also struggling to mix alginate and take to mixing alginate its difficult to me. We used curved spactula

[@StephanieDerfus]

I haven't used a curved spatula. I think the key, no matter the shape, is to really smash the alginate against the bowl with the spatula. It takes practice!

[@michelleg5665]

What did you use for the cheeks/lips?

[@StephanieDerfus]

They are silicone cheek covers from the dental model company! I believe these came from Paradigm Dental Models but most dental model companies have them. You can even get a silicone tongue (which I removed for this demo).

[@ferasezaldeen6556]

Is there a difference between a plastic or a metal spatula?

[@StephanieDerfus]

I don’t believe they are significantly different. it’s the shape of the blade that’s most important. The all-plastic spatula is easier to clean because it’s one piece. However the plastic is not as durable and I’ve seen the edges get rough and notched out over time.

[@dendlo6998]

💜💜

[@shintaprakoso7972]

how do the alginates stick on the tray, do you use adhesive on tray before?

[@StephanieDerfus]

It sticks in the metal trays without adhesive - these are rim-lock trays, there's a roll of metal that helps hold it in. On plastic trays you want to use an alginate adhesive.