Just a quick note to say hi!
If periapical infection is caused by root fracture, certainly the imposing force is from the bite, unless you received massive impact force on the front teeth otherwise,. However, anterior tooth fracture is rare, Periapical lesion does'nt develope right away, it takes months to years to give symptoms. The best way is to look at pre-op x-ray, there might be small periapical lesion. If pre-op x-ray shows intact lamina dura, and there is periapical lesion on post-op x-ray, I would suspect root fracture. Vertical root fracture may not show in the x-ray in early stage, however, it will show after months. Seeing an experienced endodontist is advised.
Just a quick note to say hi!
Veneer and implant placement are not likely to cause periapical infection of root canaled tooth. A perfectlty obturated canal from x-ray does not guarantee 100% free of periapical infection. However, in my personal experience, vertical fracture of root is the most common culprit of periapical infection of an optimally obturated canal.Diagnosis of vertical fracture is challanging.