Would you recommend root canal or an extraction on an infected molar k9 tooth that has coronal leakage and soft dentin. thanks.?

No: Canine teeth are the longest rooted teeth in your mouth and are usually the last to fail. Sounds like by coronal leakage, you mean that there is an ill fitting crown that may be decaying thus softening the dentin. If the tooth is restorable, it is an important and funtional tooth that should be restored if possible. Another good option is to extract the tooth and place an implant. Consult dds.

Depends: Whether it is a molar or a canine tooth either of these procedures can be done depending on the restorative prognosis of the tooth. Coronal leakage and soft dentin can be fixed by placing a new restoration. Root canal may be needed if the decay extends into/near the pulp or if their is evidence of infection clinically or on an x-ray. If the tooth is not fixable then an implant may be an option.

Root canal: If the tooth is restorable a root canal is a better choice. Ask your dentist.

Depends: Canines are the 3rd tooth from the middle and give contour to the corners of your mouth. Molars are the 6th, 7th & 8th Teeth from the middle and do most of your chewing. Rule of thumb is to do the least invasive treatment first so that you have future options. Decision should be mad3 on how much healthy tooth material is present. Review your options with your Dentist.