why does my filling keep falling out
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fillings
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11 UpVoted this answer
A filling should never fall out. If one comes out, there are some possible causes: 1) Moisture contamination prior to final placement. 2) Inadequate isolation of the tooth. 3) Inadequate etching technique. 4) Incomplete light curing. 5) Defective adhesive system. 6) Old or defective restorative material. 7) Poorly finished restoration. 8) Excessively large restoration (filling). 9) Oil contamination from the handpiece (dental drill). There are more reasons but these are the most important variables. If you are in the area please stop by for a complimentary evaluation. Great question! Peter Merai DDS
The filling material needs tooth surface to bond to. If the tooth surface is minimal (front teeth) it is more difficult. (depending on the area of the filling) If the filling is on a back tooth, your bite could be off. This would put pressure on the wrong area of the biting surface and could cause the filling to come loose. The tooth must be clear of debris and prepared properly before the filling is done to ensure a strong bond. But even with the greatest preparation if you are clenching and or grinding the filling can come loose.
Either you are extremely tough on your teeth or it is time to see a new dentist. If these are old fillings, perhaps it is time to see a new dentist and get some new work such as crowns if indicated. If there is not enough tooth structure to hold the filling, it may be time for an extraction and bridge or implant.
8 UpVoted this answer
As long as there is adequate tooth structure to hold a filling in place, and you are not loosing fillings to dental decay or trauma, your fillings should not be falling out. See another dental practitioner who can evaluate the amount of tooth structure you have to hold a filling in, get a complete exam and history, and from what you hear, you may need to change dentists.
4 UpVoted this answer
There are several reasons why the fillings in your mouth keep falling out.1,inadequate prepration of cavities.2.Bonding failures 3.Bite issues 4.improper material choice 4.inadequate tooth support necessitating indirect inlay.onlay.or crown.You can get a second opinion .Good Luck.
2 UpVoted this answer
Fillings need a property called retention. Retention can be achieved by preparing the tooth with a geometric shape called an undercut OR with adhesive chemistry....as long as the filling is on solid structure AND is not being traumatized by the biting forces. If the filling is inserted on soft tooth decay or a cracked tooth, it will bottom out and fall out. If it is inserted into a cracked tooth (usually symptomatic) the crack will separate in function releasing the filling and the filling will fall out. If the biting forces are knocking out your filling, then the filling and/or the tooth on the opposite arch needs to be adjusted. See your dentist for an analysis of the CAUSE of the problem who will then remedy the situation.