Proper oral hygiene is important for keeping All-on-4 dental implants and prosthetic teeth clean and free of bacteria. Recommended cleaning techniques include: Use a soft-bristled toothbrush and gently brush around the implant crowns/teeth and gingival areas after meals. Carefully floss at least once daily to remove food debris from between the fixed implant teeth. Use an interdental brush or prosthetic aid to clean under and around the bridge. Rinse daily with an antiseptic mouthwash to reduce bacteria. Have professional cleanings done every 6 months to remove hardened tartar. Avoid using abrasive toothpastes or harsh cleaning tools which can scratch the implant crowns. Report any loose crown screws or areas of sensitivity to your dentist promptly. With proper daily cleaning and maintenance, All-on-4 dental implants can last for decades.