Can be made for either partial but mainly complete denture patients. These dentures require less visits to make and usually are made for older patients, patients who would have difficulty adjusting to new dentures, would like a spare pair of dentures or like the aesthetics of their dentures already. This requires taking an impression of the patients current denture and remaking them.[2]
Deposits such as microbial plaque, calculus and food debris can accumulate on the dentures, which may lead to issues such as angular stomatitis, denture stomatitis, undesirable odours and tastes as well as staining. The deposits can also quicken the rate at which some of the denture materials wear down.[26] Due to the presence of these deposits, there is an increased risk of the denture wearer and other people around them developing a systemic disease by organisms such as methicillin-resistant Staphylococcus aureus (MRSA),[27] but research shows that denture cleaners are effective against MRSA.[28][29][30] Therefore, denture cleaning is imperative for the overall health of the denture wearers as well as for the health of people they come into contact with.[31]
Sulphamic acid is a type of acid cleanser that is used to prevent the formation of calculus on dentures. Suphlamic acid has a very good compatibility with many denture materials, including the metals used in denture construction.[32] 5% hydrochloric acid is another type of acid cleanser. In this case, the denture is immersed in the hydrochloric cleanser to soften the calculus so that it can be brushed away. The acid can cause damage to clothes if accidentally spilt and could cause corrosion of cobalt-chromium or stainless steel if immersed in the acid often and over long periods of time.[32]
An overdenture is a removable dental prosthesis that covers and rests on one or more remaining tooth roots. A removable partial denture is a dental prosthesis that replaces some teeth and is built around existing natural teeth. Both the overdenture and the removable partial denture may be connected to the remaining tooth roots or remaining natural teeth with anchors made of metal or plastic. These connections improve stability and the retention of both prostheses.
