Within the limits of this short-term clinical study, canine position for implants retaining mandibular overdentures with Locator attachments is preferred over the first premolar position, as it was associated with reduced peri-implant pocket depth and marginal bone loss after 1 year.

Telescopic distal extension removable prostheses is an esthetic restoration in partially edentulous patients with free end saddle. This article describes the addition of cantilevered extensions of this prosthesis. The results showed that telescopic distal extension removable prostheses with cantilevered extensions were associated with improved oral health related quality of life and maximum bite force compared to telescopic or conventional RPDs.

Purpose. To evaluate the surface adaptation and maximal biting force of CAD-CAM milled mandibular overdenture (CAD-CAM MOD) compared to conventional compression mold mandibular overdenture (CC MOD). Materials and Methods. Ten completely edentulous subjects with persistent complaints of their complete mandibular dentures were received four dental implants in the anterior mandible. Three months after osseointegration, subjects were randomly received either conventional compression mold or CAD-CAM MOD in a crossover design. To assess tissue surface adaptation, the fitting surfaces of each denture base were scanned and placed on the reference master cast. Three and six months after each overdenture was inserted, clinical performance in the form of maximum biting force was evaluated. Results. The results of this study indicated that the tissue surface adaptation of the CAD-CAM MOD bases was significantly better than the conventional (compression mold technique) processed bases where ( P = 0.0001 ). Regarding clinical performance (maximum biting force), the CAD-CAM MOD exhibited better clinical performance ( P = 0.0001 ). Conclusions. In denture processing methods, the CAD-CAM overdenture delivered more precise adaption and clinical performance than the compression mold technique.

The construction of a removable dental prosthesis for patients with compromised residual alveolar ridges is a challenge for prosthodontists. Flabby anterior ridges and hypermobile tissues in completely edentulous arches require special considerations during prosthetic management, especially when natural dentations remain on the opposite side. Previous studies have revealed that the displacement of flabby tissue can be reduced during impressions by controlling the applied forces via changes in factors such as the tray design, scraping of impression trays, impression material, window technique, and seating velocity of the impressions. However, there may still be some forces applied during impression or there is no even space because there are no trays supporting the vinyl polysiloxane (VPS) impression material in the open window area. Using a custom double tray with even gap between these trays and injecting light body impression material may eliminate these forces and provide accuracy due to even space for the impression material. This article is a clinical report of a patient who presented with an anterior flabby maxillary edentulous ridge opposing the remaining anterior natural teeth. A custom double tray was fabricated using the principle of the window technique. The gap between the double trays allows mucostatic impressions of flabby ridge tissue to be made with accuracy. The maxillary single denture, which was made with a custom double tray, satisfied the patient.

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Background New materials for overdenture base construction were evolved. Thus, more clinical trials are needed to validate these materials. Objective This study aimed to compare the difference between CAD/CAM‐milled poly methyl methacrylate (PMMA), poly ether ether ketone (PEEK) and conventional mandibular implant‐assisted overdentures regarding patient satisfaction and oral health‐related quality of life (OHRQL). Methods This randomised, crossover, clinical study included 18 completely edentulous subjects rehabilitated with three mandibular implant‐assisted overdentures with three different denture base materials opposing a maxillary single denture. These materials were as follows: CAD/CAM‐milled PMMA, CAD/CAM‐milled PEEK and conventional PMMA. Every participant first received each mandibular overdenture in a random manner. After 6 months of each overdenture use, patient satisfaction and oral health‐related quality of life were assessed using visual analogue scale (VAS) and Oral Health Impact Profile (OHIP‐EDENT‐19), respectively, and then crossover to other groups was done. The same was repeated to the last group. Comparison of VAS and OHIP‐EDENT‐19 between groups was done using Kruskal–Wallis test followed by Bonferroni test. Results Regarding all the VAS items, there were statistically significant higher scores for CAD/CAM‐milled PMMA and PEEK than conventional PMMA base except for speech, aesthetic and smell. Regarding OHIP‐EDENT‐19, many items revealed statistically lower problem scores for CAD/CAM‐milled PMMA, and CAD/CAM‐milled PEEK than conventional PMMA base except psychological discomfort, psychological disability and social disability. Conclusion Within the limit of this study, CAD/CAM‐milled PMMA and CAD/CAM‐milled PEEK were recommended as implant‐assisted overdenture bases as it revealed higher patient satisfaction and better oral health‐related quality of life in comparison with conventional PMMA implant‐assisted overdenture.

Aims: to assess the HIV/AIDS-related knowledge and attitude among dental students and dentists in KSA, to explore the association between the dental students’ knowledge toward HIV, their age, gender, and academic year and to compare the level of knowledge among dental students, interns, and dentists. Study design: This is an observational cross-sectional study. Place and Duration of Study: Conducted in Saudi Arabia at Jeddah, Riyadh, Almadina, Hail, Dammam, Jazan, and Sakaka cities from December 2020 to August 2021. Methodology: Self-administered questionnaires were used to collect data. Background information and HIV/AIDS-related knowledge and attitudes were collected using a self-administered -based questionnaire, the first section assessed demographic data, while the second section assessed knowledge and attitudes towards dental treatment for HIV/AIDS patients. Results: The total number of participants was 461. The percentage of age distribution 49.7% were 30 years. Following; knowledge-based group 50.5%, 1.5% and 47.1% 14 considered blood, saliva are possible HIV origins. 83.3% believe that HIV is transfusion origin. 15 While, 3.3% considered disease is contiguous and 4.8% believe it is due to sharing of food. Conclusion: Current study reveals a lack of knowledge and attitude among dental students 17 and dentists, with insignificant variations. More education regarding AIDS patients is needed 18 in dentistry community.

Background: Stabilisation splint therapy (SST) and low-level laser therapy (LLLT) are effective-invasive treatment for temporo-mandibular disorder (TMD) patients.However, the specific efficacy of each therapy in patients with chronic closed lock (CCL) from temporo-mandibular joints (TMJ) disc displacement without reduction (DDwoR) remains unknown. Objectives:The aim of this study was to assess and compare the efficacy of SST and LLLT alone or in combination in patients with CCL from TMJ DDwoR.Methods: This parallel randomised clinical trial included 42 patients who were diagnosed with CCL from TMJ DDwoR. Patients were allocated equally and randomly into three treatment groups: group I received combined SST and LLLT, group II received LLLT and group III received SST. Maximum mouth opening (MMO), visual analogue scale (VAS), muscle and joint palpation scores and time required to achieve normal state were evaluated at baseline, 1, 2, 4 weeks, 3 and 6 months after the intervention.Data were collected and analysed using SPSS software.Results: Regarding MMO and VAS, a statistically significant improvement was found between group I versus group II and versus group III at all evaluation times. Regarding muscle and joint palpation scores, a statistically significant difference was found between group I versus group III, while non-significant difference was found between group I and group II. A statistically significant faster improvement was found in group I versus group III and versus group II. Conclusion:All treatment modalities can be effective in management of CCL from a TMJ DDwoR cases, but the combined SST and LLLT group seems to provide the best and quickest improvement.Clinical trial registration number: NCT05548894.