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Background. The study's objective is to assess the adherence of C. albicans in different types of denture polymers and the effectiveness of eugenol and commercialized denture cleansers in the removal of C. albicans. Three types of denture base polymers (Lucitone® 199 (High-Impact PMMA), Impact® (conventional PMMA) and Eclipse® (UDMA)) and two hard denture reline materials (Kooliner® and Tokuyama® Rebase II Fast) were used in this study. Methods. Three hundred samples were prepared (6 > 2 mm disc shape) and divided into five groups of denture polymers (nD60) and further subjected into five treatment groups (Polident®, Steradent, distilled water, eugenol 5-minutes, and eugenol 10-min). Three samples were extracted from each treatment group for baseline data (nD12). Baseline data were used to calculate the initial number of C. albicans adherence. A 0.5 ml immersion solution from each specimen was cultured on YPD agar and incubated for 48 h at 37 °C. Visible colonies were counted using a colony counter machine (ROCKER Galaxy 230). Results. The result showed that the denture base polymer significantly affected the initial adherence (p D 0:007). The removal of C. albicans was also considerably affected by the denture base polymers and denture cleansers (p < 0:05). Lucitone®, Tokuyama®, and Kooliner® denture base polymers immersed for 3 min in eugenol showed the best results of removal. Discussion. This study's overall results showed that all denture polymers used as denture bases had an effect on C. albicans initial adherence and removal from the denture base, and eugenol is comparable to commercialised denture cleansers in reducing the number of attached C. albicans on denture base polymers. [ABSTRACT FROM AUTHOR]

Overdenture is one of the recommended treatment methods for elderly patients with few remaining teeth and deeply resorbed ridges. Root retained under the denture base maintains more alveolar ridge resorption, which provides sensory feedback and improves the stability of the dentures. In addition, after endodontic therapy, the use of copings (short/long) and braces on the remaining teeth improves denture protection. This case report aimed to describe prosthodontic rehabilitation of a tooth-supported removable partial denture using a Locator attachment. A 48-year-old woman presented to the Faculty of Dentistry, University of Malaya, complaining looseness and repeated fracture of her denture, which led to difficulty in eating and chewing. She presented with Kennedy Classification II modification 1 on the maxilla with 23 and 24. The treatment plan was to provide her with maxillary cobalt--chromium overdenture using the Locator attachment system. The abutment teeth were designed, prefabricated using Locator, and were attached to the root of 23. Esthetics was achieved, and the patient reported satisfactory outcome. The present case report signifies that few remaining teeth are effectively preserved to support tooth-retained overdenture. This treatment approach was chosen considering the patient's favorable inter ridge distance and economic status rather than full extractions accompanied by a complete denture or implant-supported overdenture. This technique using a Locator attachment on a natural tooth can be an alternative method in prosthodontic rehabilitation of a partially edentulous adult patient with a distinct approach to meet the needs, esthetics, and psychological well-being of the patient. [ABSTRACT FROM AUTHOR]

Introduction: The compatibility of denture cleanser is crucial in the prevention of failure of adhesion between silicone soft liner and acrylic denture base, thus ensuring the durability of the prosthesis. This scanning electron microscope (SEM) study was to determine the mode of failure and measured the gap formation between silicone soft liners and Polymethylmethacrylate (PMMA) denture base after immersion in denture cleansers. Methods: A total of 135 specimens of PMMA denture base lined with three different silicone soft liners (GC Reline Soft, Mollosil and Tokuyama Sofreliner Tough) were immersed into denture cleansers (Polident® and Stearadent) daily and stored in distilled water at 37±1°C. Specimens were examined and sectioned at 2.5mm and 5.0mm from the margin after 1 day, 30 days and 90 days before analyzed. Results: No significant difference detected in the mode of failure and gap formation after one-day immersion. Adhesive failure was the commonest failure at the margin after 30 days (71.11%) and after 90 days (95.56%). However, 33.33% of specimens showed mixed failure at 5.0mm sectioned after 90 days. A significant difference of gap formation was demonstrated from Mollosil in Steradent at the margin and at 2.5 mm sectioned after 30 days and after 90 days (p<0.05). It was also observed at the margin and 5.0mm sectioned of specimens from Tokuyama in Steradent after 90 days of immersion (p<0.05). Conclusion: Specimen immersed in Steradent denture cleanser presented with wider gap formation as compared to Polident®, and adhesive failure is the commonest mode of failure. [ABSTRACT FROM AUTHOR]