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Pre-etching enamel

 
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guanhor



Joined: 08 Sep 2009
Posts: 14

PostPosted: Mon Jul 25, 2011 9:24 am    Post subject: Pre-etching enamel Reply with quote

Hi Guys, my virgin post on this wonderful forum. Apologies in advance if this has been discussed somewhere else.

1st question: Is it a good idea to pre-etch enamel (some cut some uncut) for 30s with h3po4 prior to surpass? Better, worse or no difference? In my hands it does reduces the incidence of white lines significantly.

2nd question: If I am on all enamel and using h3po4, do I use apply surpass 3 only or surpass 2 and 3 or surpass 1,2 and 3?

Thanks

Guan Hor, Go
Johor Bahru, Malaysia
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john kanca



Joined: 14 May 2005
Posts: 6345

PostPosted: Mon Jul 25, 2011 12:01 pm    Post subject: Re: Pre-etching enamel Reply with quote

Hi Guys, my virgin post on this wonderful forum. Apologies in advance if this has been discussed somewhere else.

1st question: Is it a good idea to pre-etch enamel (some cut some uncut) for 30s with h3po4 prior to surpass? Better, worse or no difference? In my hands it does reduces the incidence of white lines significantly.

It will make no difference. Be sure to use enough Surpass 1 and agitate it for 10-15 seconds.

2nd question: If I am on all enamel and using h3po4, do I use apply surpass 3 only or surpass 2 and 3 or surpass 1,2 and 3?

Only Surpass 3 will be needed.

And welcome here.

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guanhor



Joined: 08 Sep 2009
Posts: 14

PostPosted: Mon Jul 25, 2011 10:18 pm    Post subject: Reply with quote

Thanks John.

A few more questions:

1. When bonding to multiple teeth at one go, do I wet all of them with surpass 1 then agitate one by one for 10s? Or do you recommend wet and agitate one by one?
If I follow the second method, exposure to surpass 1 for each tooth will not be the same.
You mentioned somewhere that its alright to leave surpass 1 on for some time if we don't agitate it. Does it apply to before and after agitation?
I am not comfortable with bonding to one tooth at a time because I might contaminate the other prepared surfaces when I air-blow the adhesive.

2. When applying surpass 1 to a large surface is it ok to wet everything first and then agitate the different areas separately. eg proximal 10s occlusal 10s?

3. When applying surpass 2 to multiple teeth, do I wet the brush and apply to ALL the teeth or wet and apply to one tooth at a time. The second method does uses quite a bit more surpass 2. :<
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