Background: The perception that the specialty of prosthodontics has changed over time is subjective and largely based on personal belief, with little data to uphold this view in the literature. Objectives: The aim of this study was to compare the frequency of presentation categories at each International College of Prosthodontists Conference from 1999 to 2017 and identify trends. Methods: Available ICP Conference Programs were sourced from the ICP Administration and the titles of all presentations reviewed and catalogued into one of 13 presentation categories. The number of presentations in each category was expressed as a percentage of the total number of presentations for each conference and statistically analyzed for trends throughout the study period. Results: 69.61% of all presentations from all conferences were categorized as one of implant dentistry; materials, CAD-CAM and digital technologies; removable prosthodontics and edentulism; or fixed prosthodontics. 46.38% were categorized as implant dentistry or materials, CAD-CAM and digital technologies. The frequency of presentations of fixed prosthodontics significantly decreased while the frequency of implant dentistry; maxillo-facial prosthodontics; geriatric dentistry and medically compromised patients; and clinical case presentations and treatment planning significantly increased (p<0.05) over the study period. Conclusion: The ICP Conference presentation titles reviewed from 1999 to 2017 maintained a focus on implant dentistry and materials, CAD- CAM and digital technologies alongside a diverse range of other topics. Throughout the study period, the frequency of presentations of fixed prosthodontics significantly decreased while the frequency of presentation of implant dentistry; maxillo-facial prosthodontics; geriatric dentistry; and clinical case presentations and treatment planning significantly increased.

Background: The dimensional stability of alginate impression material is very important for obtaining an accurate cast. Seal bag storage is one way to maintain dimensional stability of the impression material. Objectives: This research aims to compare the dimensional stability of alginate impressions between imprESSIX Color Change (Alginate A), Algeniux Normal Set Major (Alginate B), and Aroma Fine Plus Normal Set (Alginate C). The alginate impressions were stored in seal bags for 0 min, 10 min, 3h, 24h, 72h, 120h, and 168h. Method: Sixty-three gypsum cast samples were obtained from a master die using 3 different alginate impression materials. The alginate impressions were stored in separate seal bags for each of the seven different time intervals, then the samples were poured with gypsum type III. The buccal cusp length from right first molar to left first molar was measured for each gypsum cast sample using calipers and compared with the master die. The data were analyzed with two-way ANOVA followed by post hoc LSD test. Results: The distance between the mesial buccal cusps of the right and left first molar was 52.280 mm for the master die. Gypsum cast samples of alginate A and B showed shorter lengths compared to master die, but the difference was not significant (p>0.05). A significant difference in dimensional stability was observed for alginate C (p<0.05) after 120h (52.080 mm) and 168h (52.057 mm). Conclusion: Dimensional stability of alginate impression was influenced by alginate composition and seal bag storage time. Seal bag storage could hold the dimensional stability of alginate A and B up to 168h, but for alginate C, the stability only lasted for 72h.

Background: Pomegranate (Punica granatum) fruits are commonly regarded as medicinal plant in Indonesia, and the polyphenols found in pomegranate juice (punicalagin and ellagic acid) have been shown to have antibacterial properties. Objectives: Using monospecies and multispecies biofilms, we sought to examine the effects of pomegranate juice on the viability of three periodontal pathogens: Porphyromonas gingivalis, Aggregatibacter actinomycetemcomitans, and Treponema denticola. Methods: Biofilm assays were performed using crystal violet. Pomegranate juice was obtained from pomegranates using a juicer, and the juice was then diluted into different concentrations with phosphate saline buffer. The three pathogens were cultured in both monospecies and multispecies plates. Pomegranate juice was then added to each biofilm well. These were then incubated for 1h, 6h, or 24h, after which the optical density (OD) of the biofilm mass was measured using a microplate-reader (490 nm). Biofilm without treatment was used as a negative control and 0.2% chlorhexidine gluconate as a positive control. Data were analyzed with a one-way ANOVA; the level of significance was set at p<0.05. Results: Compared to the negative control, biofilm mass was significantly decreased after treatment with pomegranate juice across all concentrations and incubation times, for both monospecies and multispecies abiofilm (p<0.05). The best results were achieved with P. gingivalis biofilm, with 100% concentration (OD 0.34 ± 0.03); A. actinomycetemcomitans, 50% concentration (OD 0.22 ± 0.01); and T. denticola, with 25% concentration (OD 0.87 ± 0.08), as well as with a multispecies biofilm with a 50% concentration in 1h incubation time (OD 0.09 ± 0.02). Conclusion: Pomegranate juice effectively inhibited the biofilm formation of P. gingivalis, A. actinomycetemcomitans, and T. denticola. Pomegranate juice may therefore be used as an alternative therapy in preventing periodontal disease. Additional research should explore this effect in an environment that mimics oral cavities.

Background: Temporomandibular disorder (TMD) is a common term used to describe the problems related to masticatory muscles, joints, and supporting tissues. TMD commonly causes orofacial pain and has been the subject of considerable research in the field of dentistry. The treatment chosen for patients who have TMD is largely determined by the knowledge of general dental practitioners. Objectives: The purpose of this research was to assess the understanding of TMD pathophysiology by such practitioners. Methods: Questionnaires were distributed randomly to general dental practitioners in private offices and hospitals in the area of Jakarta, Indonesia. The answers on the returned questionnaires were compared to those of TMD experts. Results: Of the 117 questionnaires distributed to general dentists, 105 were returned (89.7% response rate). The results showed an overall level of knowledge of TMD pathophysiology of 25%. Conclusion: The majority of general dental practitioners in Jakarta lack knowledge of TMD pathophysiology.

Background: Dentists often encounter patients with worn dentures that still feel comfortable even though the patients have lost the supporting tissue heights due to physiological and pathological resorption. Loss of denture retention, stability, and occlusal vertical dimension are most often caused by alveolar bone resorption. Dentures that are loose because of poor adaption to the supporting tissues should be relined. Chair-side procedures provide immediate resolution, avoiding the edentulous period of time accompanying laboratory relines. Case Report: A 70-year-old male edentulous patient came to the Prosthodontic Clinic, Faculty of Dentistry, Trisakti University, Jakarta, Indonesia. The patient had been wearing the upper and lower dentures for approximately eight years. The patient had alveolar ridge resorption, which causes loss of retention, stability and vertical dimension. After the problems were thoroughly diagnosed and corrected, a chair-side denture relining with an open-mouth technique was used. Conclusion: Direct relining in a single visit helped the complete denture to regain its retentiveness, allowing for prolonged the use of the worn denture. It also adjusted occlusal vertical dimension to improve the occlusal support and esthetics.