Final answer:
The claim that instrumentation of dental implants should be limited to supragingival deposits only is false. Proper care involves the removal of both supragingival and subgingival deposits to maintain implant health and prevent peri-implantitis.
Step-by-step explanation:
The statement that instrumentation of dental implants should be restricted to supragingival deposit removal only is False. While it is true that calculus is more easily removed from dental implants because it does not interlock or penetrate the implant surface, instrumentation is not restricted solely to supragingival areas. Subgingival deposits can also occur and must be managed appropriately. Proper instrumentation is critical for the long-term success of dental implants, and professionals are trained to remove both supragingival and subgingival calculus without damaging the implant surface. Maintaining implant health is crucial, as the presence of calculus and bacteria can lead to peri-implantitis, a condition that can cause inflammation and, potentially, implant failure.