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Dental crowns

Dental crowns are permanent tooth covers that are cemented to chipped, cracked or broken teeth to improve their appearance and function.

Is it possible for a crown to be too large and crack an adjacent tooth?

Kamini Talati (Port Saint Lucie, FL) on Oct 25, 2011
It is not possible for a crown to be too large, because if the crown is too large it would not sit properly on the tooth.
Ramin Tabib (New York, NY) on Oct 25, 2011
It is highly unlikely that a large crown would cause the adjacent tooth to weaken and crack. The more likely scenario with a too-large crown is that it will irritate the gum surrounding it and your tongue will eventually get sore. Ultimately it will force the jaw in an awkward position and affect how your upper and lower jaw meets. It only takes one crown that is beyond the size and shape it was designed to be to cause a whole slew of jaw problems such as headaches, neck ache and facial pain. Jaw problems, for whoever that has experienced that, is extremely debilitating and it all could be prevented. Of course this is not the only reason for jaw problems.
Les Latner (Los Angeles, CA) on Oct 25, 2011
Before the dentist cements in a new crown, the bite is checked and confirmed that it is a correct bite. It is not likely that a crown could be too large and thus crack an opposing tooth. The usual events that will crack an opposing tooth are eating something too hard and grinding or clenching your teeth habitually.
Michael Apa (New York, NY) on Dec 2, 2011
its possible, but not probable. it would be more probable that the opposing tooth would crack if the crown was too big and interfering with the bite.
Christopher Baer (Aurora, CO) on Oct 27, 2011
Not likely that it would crack a tooth next to it. If it was too large then it would likely not fit down next to it when the crown was cemented.
Amanda Seay (Mount Pleasant, SC) on Nov 9, 2011
If a crown is too large and applying pressure to the adjacent teeth then it would only be able to crack adjacent teeth during the insertion of the crown but not after. Even this occurrence would be under specific situations where the crown being delivered is made of a material that has more flexural strength than the adjacent teeth. An example would be the delivery of a gold crown (which would not break) that is being seated in between 2 porcelain crowns. Another possibility is that your adjacent teeth have some compromised restoration to begin with and the new crown has just shifted the bite pressure to the adjacent teeth which caused the cracking. There are too many variables to really determine the true cause from just your question. Your dentist would need to do an thorough evaluation.