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Question:

When is a mold used in the preparation of a dental bridge? The difference between a mold and an impression?

In developing a fixed bridge over tooth s 12-14 to correct a 20 year old missing tooth 13 should there have been a mold taken in preparation of the bridge and how does it differ from an impression?

Answer:

A mold is the same thing as an impressionWhen making a bridge, the dentist will first take an impression of the teeth in order to fabricate a temporary bridgeHe will make a stone model from the impression, and add the missing tooth with wax, then take a silicone impression of the model with the wax toothOn the preparation day, the dentist will prep the teeth in your mouth (grind them down, and taper them with diamond burs), then take a super accurate 'master' impression to send off to the dental labThis is the impression that you are probably referring toThe lab will make your bridge from this impressionAfter the master impression is taken, the dentist will squirt some temporary crown material (composite resin material) into the impression he got from the stone modelHe will place this impression with the temp crown material over your prepped teeth and let it setThen the dentist removes the temp bridge, trims it, and cements in placeA few weeks later the temporary bridge is removed, and the permanent one is cemented in placeThere is also a newer technology that lets you make an 'instant' crown or bridgeThe dentist takes a digital image of the prepped tooth/teeth, with a CEREC machine, and the crown/bridge is milled from a block of ceramicYour teeth can be prepped, and restored in the same day.
I have never heard such a thing as putting foil on a feederIf you place your feeder in an open place the birds will see itIt make take time, but they will find itGood luck and enjoy the show.
Yes foil will scare certain birds awayWhen planting new grass seed, some people string aluminum pie plates across the newly seeded lawn to keep the birds from eating the seedIt's the movement of the pie plates from the wind that scares them.
IT is strips of foil hung around balcony and moving around in the wind erratically that scares the pigeons away but only for a short time they are smart and even though nervous of strange new things that are shine move and make a weird noise move in to the balcony anywayno need to put foil or anything else out with the bird feederJust put the bird feeder out remove the feed of a night don't feed spoiled food and eventually a bird cruising by will investigate and find the food and either others will see it feeding of it will bring family group back for easy pickingsbut just remember once you start this and they rely on this you have to keep it up all the time as they will starve and have to make sure the feed is going to be correct type.
no not really some garden catalogs carry same as foil a product called bird scare tape to scare birds most of the time this does not work

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