A 4-year clinical study on amalgam, resin composite and resin-modified glass ionomer cement restorations in overdenture abutments

Overdenture Prostheses with Metal Copings: A Retrospective Analysis of Survival and Prosthodontic Complications

“…Use of high concentration neutral fluoride gel (5000 ppm) daily in the depression of the dentures corresponding to the abutments for at least one‐half hour has been recommended as an added clinical regimen for overdenture subjects . Maintenance of periodontal health seems to be a major problem in overdenture wearers, and periodontal complications have been shown to be a major cause of abutment loss in overdenture wearers . To prevent progression of periodontal disease adjacent to overdenture abutments, the following measures seem to be important: meticulous oral and denture hygiene, surgical eradication of existing periodontal pockets, abstinence from wearing the dentures at night, and/or regular use of chlorhexidine gel/neutral fluoride gel …”

“…28 Maintenance of periodontal health seems to be a major problem in overdenture wearers, and periodontal complications have been shown to be a major cause of abutment loss in overdenture wearers. 24,25 To prevent progression of periodontal disease adjacent to overdenture abutments, the following measures seem to be important: meticulous oral and denture hygiene, surgical eradication of existing periodontal pockets, abstinence from wearing the dentures at night, and/or regular use of chlorhexidine gel/neutral fluoride gel. 26,27 High incidence of dental caries has been widely reported as a major complication of overdenture therapy.…”

“…By restoring abutment teeth with copings (extracoronal restorations) that have decreased periodontal support, but are still healthy enough to receive occlusal loads, the crown–root ratio of abutment teeth is improved, and biting forces may be transmitted along the long axis of the teeth . Therefore, overdentures have been preferred options by clinicians for patients with remaining roots; however, the usefulness of overdentures has been limited by the susceptibility of abutment teeth to caries and progressive periodontal disease . Logistic regression analysis has indicated that plaque accumulation on the tissue surface of dentures supported by abutment teeth as well as on the abutment teeth were significant factors in secondary caries and deepening pocket depth prevalence, respectively .…”

“…7 Therefore, overdentures have been preferred options by clinicians for patients with remaining roots; however, the usefulness of overdentures has been limited by the susceptibility of abutment teeth to caries [15][16][17][18] and progressive periodontal disease. [16][17][18][19][20][21][22][23][24][25][26][27][28] Logistic regression analysis has indicated that plaque accumulation on the tissue surface of dentures supported by abutment teeth as well as on the abutment teeth were significant factors in secondary caries and deepening pocket depth prevalence, respectively. 29,30 It is therefore suggested that dentists and ancillary staff educate and motivate patients to pay more attention to daily cleaning of these areas in addition to periodontal maintenance and professional care.…”

Jaw muscles in older overdenture patients

“…It has been shown that there is a wide variation in caries development with annual increments of between 10 and 40% but that this can be completely inhibited by a daily application of chlorhexidine‐fluoride gel 32 . Covering the root surface and sealing the root canal is essential to maintain the health of the tooth and although a variety of materials are used, research has not clearly indicated a superior material 34 . However, more recently, in vitro studies have indicated that fluoride‐releasing glass ionomer may be an appropriate material for protecting the root surface of abutment teeth 35 .…”