Effect of Denture Cleansers on The Attachment System ofConventional and Digital Implant Retained Overdentures. (compartive analysis)

Objectives: An in vitro study was conducted to compare the effects of various denture cleansers solution on the retention of attachment systems in both conventional and digital implant-retained overdentures. Background: Despite advancements in global oral health, edentulism still requires significant treatment strategies to improve prosthodontic techniques. Implant-retained overdentures are an effective treatment for edentulous patients, enhancing the retention, stability, support, and masticatory function of the overdenture, moreover, help in preserve the surrounding bone. The selection of attachment systems for overdentures is cruicel based on the required retention level, jaw anatomy, case complexity, implant alignment, available prosthetic space, and the patient's commitment to maintenance appointments. Denture cleaning solutions are used to improve denture hygiene and so underlying mucosa, thus our study aims to assess the impact of these solutions on the retention of overdenture attachments. Materials and Methods: A comparative study to compare the various denture cleansers on retention systems in the conventional and the digital implant retained denture .The study was conducted according to the cleansing solution used, where divided equally into five groups: Group A: the overdenture including retentive elements were cleaned by soaked in Corega tabs Group B: soaked in chlorhexidine. Group C : soaked in Fittydent solution. Group D: soaked in Sodium hypochlorite solution. Group E : soaked in EDTA cleansing solution. Each group were placed into cleanser put in glass cup immersed in the solution during the entire soaking period according to the manufacturers’ instructions for the time equivalent of 24 hrs., one month and six months. Acrylic blocks were held on a universal testing machine for a pull-out test to record the dislodgement force. Measurements were conducted after 1 months (T1) and 6 months (T2). One-way ANOVA followed by Tukey’s HSD test hoc test was used to compare between more than two groups in non-related samples. Results: The study revealed that, there were significant statistical differences between the different manufacturers regarding the retention forces of the attachment’s retentive force (Before soaking), (After 24hrs), (After 1month) and (After 6 months) where (p<0.001)Except in Corega group ,there is no statistical difference . For the cleaning solution groups, different significant statistical results between five group at different time interval follow up. where (p<0.001). Conclusion: The significance of denture hygiene is paramount, leading to a rise in the demand for commercial denture cleaning products. These chemical cleansers are adept at eliminating food particles, biofilm, and stains, which may otherwise impair the denture retention system's efficiency. Consequently, selecting denture cleaners that necessitate minimal soaking time is vital for both conventional and CAD/CAM-based implant-retained overdentures with attachments, as it aids in extending the lifespan of the components.