The Periodontist does not typically install the prosthetic restoration on the implants. They usually insert implants and refer back to your general dentist or to a Prosthodontist. In Maryland, a lab technician is not allowed to work in the patient's mouth. I would suggest you pay a visit to a general dentist or prosthodontist to evaluate the issue of the frequent breakage. Implant treatment usually requires a team for follow up and routine care that a general dentist provides on an ongoing basis.