Can I Use One Implant to Replace Two Molars?

It is not generally recommended to replace two teeth with a single implant.  The molar region is the most important area to have one implant per tooth missing.  The bite forces are too great in the molar area to have one implant support two teeth.  Nature gave you two roots on lower molars and 3 roots on upper molars for a reason.  So one Artificial root for 4-6 roots is not a good idea, the likelyhood of failure is very great.  Even though implants are generally "stronger" than natural tooth roots one implant per missing tooth is recommended.  In rare instances smaller teeth like the lateral incisors can be cantelievered off of a second implant crown, but this is only because there is insufficient room for the implant and the crown is generally taken out of occlusion (out of the bite forces and excusions)

If you have one implant replace two teeth there will be a cantilever on one or both sides.

 

Cantilevers cause the the implant to fail eventually.

 

Never replace two teeth with one implant.

 

Hope thats clear enough.

 

Best,

Dr. Alper

Due to the chewing forces on the back (molar) teeth, it is not a good idea to attach more than one tooth per implant as a general rule, however there are always exceptions, such as what is opposing these teeth, such as a denture or natural teeth.  You should consult an experienced restorative dentist or prosthodontist.