While general dentists receive theoritical training on the fabrication of dental prosthetics, it’s quite common for them to depend on dental technicians for optimal appliance fabrication.
However, the intricacies and potential flaws inherent in the process may elude dental technicians, as they aren’t directly involved in addressing complications.
Restarting the entire process to address common complications is common, costly and more complex. The most effective approach involves minimizing risks by identifying
issues early on and applying knowledge and science-based skills for resolution.
An illustrative instance of a preventable complication is an implant platform fracture resulting from prolonged, untreated screw loosening.
When I asked the Lab to make a similar splinted implant supported bridge I was told it could not be done. To prove them wrong, I decided to do it myself in office.
Restorations like this have been successfully in service for many years and I have not had this type of complication ever in my private practice.
If you have a smimilar problems, talk to a prosthodontist and find out how they can help you.

Dental Implant Fractured, due to a loosened screw.
Comparing two different splinted implant crown design. One was a failed design by a dental technician, the lower image is a similar case  fabricated by a prosthodontist to minimize the risks.