What does it mean for a dentist to flush out a dental implant?

Not a common term: Dental implants need hygiene, just like teeth. Brushing and flossing, and even proxy brush around them stimulates the tissue, as well as eliminate bacterial accumulation on food deposits. Flushing could be the use of a oral irrigator like a waterpik. Still too strong a pressure of the flow of water can damage the tissue and dry bacteria deeper than you would want. Implants succeed if cleaned.

Clean & Disinfect: Sounds like your implant has a problem, probably will infection, loss of bone attachment, or plaque/food accumulation. In these cases, the area around the implant will be gently opened, the area will be cleaned, & then it will be "flushed" with an antiseptic and/or antibiotic. This is no different than what would be done with any other area of the body which is infected and needs to be cleaned.

Periimplantitis: When a dental implant restoration suffers from periodontal infection, or there is crestal bone resorption which creates a residual defect, the "pocket" around the implant is often irrigated with antimicrobial solutions such as chlorhexadine. If this is in the context of what your dentist is prescribing, then it may fit.

Infected implants: "flush out" is not a common term. Probably there is some evidence of infection around the dental implant and flushing out means irrigating the implant site with an antibiotic rinse or an antimicrobial rinse.

Irrigation: The phrase maybe what dentists refer to as "irrigation" with an antimicrobial such as chlorhexidine.

Not medical term: I am not sure what is meant by this exactly since it is not a medical term. That being said, he is most likely referring to rinsing the site with saline and possibly antibiotic solution. Sounds like you are experiencing a problem possibly with bone loss, infection etc. Just ask your dentist what he is referring to.

Infection: Usually there is an infection in the surrounding gum tissue. Bathe dentist takes specific medicaments and flushes out the gum tissue to improve the health of the area.

Flushing implant: Ask the dentist the direct question--what are you doing it for? When anything is "flushed" it implies "something" (pus, debris, etc) needs to be removed. If it has just been placed, the implant may not be doing well, and the idea is to clean it out. If it's been there and already has a tooth on it, "flushing" may mean that some of the implant is exposed and the tissue around it is pocketed.

Clean: When the dentist 'flushes out' a dental implant, he or she is essentially irrigating the implant site with a special medicine to remove bacteria and other debris around the implant. This helps clean it and prevent any further bone loss if some has already occurred.