This study offers valuable insights into the factors influencing dentin bond strength, particularly highlighting the significant impact of donor age. By meticulously analyzing a wide range of variables, including bonding area, void presence, and CT values, the researchers have provided a comprehensive understanding of how these elements interact with age to affect bond strength. The finding that bond strength increases with age up to the age of 60 is particularly noteworthy, offering practical implications for optimizing adhesive dentistry procedures. This research not only advances our knowledge in the field but also underscores the importance of considering donor characteristics in clinical applications. Overall, this study is a commendable contribution to the field of adhesive dentistry.
This study systematically reviewed clinical studies to examine the effectiveness of soft denture relining (SDR) materials used for removable dentures and found that SDR often provides beneficial outcomes such as pain reduction and recovery of chewing ability with dentures. However, caution should be exercised regarding their use, owing to insufficient functional duration and the possibility of microbial contamination during long-term use. This review highlights the clinical significance and limitations of SDR in maintaining the quality of life of individuals using removable dentures.
This article provides a compelling investigation into the moderating role of dental prostheses in the risk of depressive symptoms developing due to tooth loss among older adults. Utilizing data from the Japan Gerontological Evaluation Study, the authors conducted a robust cohort analysis of over 50,000 participants, identifying that those with severe tooth loss and no prostheses experienced the highest risk of depressive symptoms. The use of dental prostheses may mitigate this risk of depression linked to severe tooth loss. These findings emphasize the importance of dental interventions in mental health strategies for older adults.
Currently, depth gauge instruments are considered the standard of care for veneer preparation. This study involved preparing maxillary and mandibular incisors and typodont teeth mounted in dental treatment simulators, aiming to simulate a clinical setting as closely as possible. It was conducted as a randomized controlled trial with blinded measurements and independent statistical evaluation.
This literature review provides a comprehensive overview of the applications of artificial intelligence (AI) in removable prosthodontics, offering significant insights into the current state and prospects of this field. The authors have adeptly highlighted AI’s potential to revolutionize diagnostic processes and treatment planning, while also emphasizing the need for more comprehensive research and collaboration to fully integrate AI into prosthodontic workflows. This paper is recommended for readers interested in understanding the impact of AI on prosthodontics and the convergence of dental sciences with technological innovation.
The association between oral health conditions is being increasingly recognized as significant. This epidemiological study examined the relationship between the number of missing teeth, with and without dentures, and the health status of a cohort of elderly individuals. The authors have concluded that preventing tooth loss and providing prosthodontic treatment may be associated with reduced mortality and functional disability, as well as the maintenance of intellectual ability, frequency of social engagement, and improvements in dietary habits. This study underscores the significance of prosthodontic treatment for missing teeth in maintaining the quality of life in elderly individuals.
A groundbreaking study has emerged with the potential to revolutionize dental treatments. The latest research has focused on the adhesive strength of resin composite crowns fabricated using CAD/CAM technology. This study compared the efficacy of a novel resin primer containing methyl methacrylate (MMA) with those of conventional silane agents. The results showed that treatment with MMA-containing primers improved the adhesion between the resin composite blocks and resin cement. In addition, the MMA-containing primer formed a 5-10 μm layer at the interface, exhibiting a distinct adhesion mechanism via silane treatment. These findings provide major insights into the development of novel bonding protocols for dental care. Expectations are high for future advancements in the theory of adhesion mechanisms.
This literature review explored small ceramic restorations adhesively luted onto unprepared anterior teeth, also known as partial laminate veneers, fabricated from traditional ceramic and/or resin composite. From an electronic search, laboratory studies have suggested promising mechanical and optical performances for partial laminate veneers, and clinical reports have highlighted the large variability in material selection and application protocols. Overall, the review suggests comparable performance to traditional veneers but also indicates low-quality evidence for ceramic partial laminate veneers, thus emphasizing the need for further clinical studies with extended follow-up periods to confirm their effectiveness.
This study evaluated the marginal fit and durability of three types of hybrid dental materials with varying occlusal thicknesses. The results showed superior marginal adaptation for 3D printed crowns, and all materials could withstand normal chewing force, even at a minimal thickness of 0.8 mm.
The authors performed a scoping review to determine the current scientific status of implant-assisted removable partial dentures (IARPDs) by focusing on the length and diameter of dental implants, implant placement sites, loading protocols, IARPDs designs, selection of attachments, cost-effectiveness, and biological/technical complications. Overall , the clinical outcomes were acceptable with several types of biological/technical complications.
Provided the risks of infection during a pandemic, the hazards of aerosols generated during dental treatments should be understood. This study established visualization methods, discovered conditions for droplets/aerosols generated in simulating dental treatments, and identified the conditions for effective suction methods. Consequently, these findings aid in appropriate protection from communicable diseases in dental-care environments.
This study reviewed the current status of optical scanning in facial prosthetics by sorting multiple references. There was no significant difference in linear dimensions on human faces between direct caliper measurements and scanned models. The study results are significant basic information for the application of digital workflow in facial prosthetics, which may be further developed eventually.
This review aims to provide the dental fraternity with information on the mechanism of botulinum neurotoxin and its therapeutic applications currently prevailing in clinical practice. It is essential, especially for prosthodontic experts treating temporomandibular disorders, bruxism, chronic tooth pain, myofascial pain, etc., to know the pros and cons of botulinum neurotoxin.
The fabrication of removable partial dentures (RPDs) through fully digital procedures remains a challenge. In this study, the authors developed a novel CAD/CAM method for manufacturing a patient-specific RPD in a single piece, using a custom plate. This method, which does not use a gypsum model to combine RPD components, metal framework, denture base, and artificial denture teeth, offers an advantage in the efficiency and accuracy of RPD fabrication over conventional methods. The development of this fully digital RPDs fabrication approach presented in this report will significantly impact prosthodontic clinics worldwide, especially in the context of an increasing aging population.
Interocclusal registration is an important procedure in the digital workflow. This article compares the accuracy of optical interocclusal registration using Trios 3 with different instructions, such as “bite normally,” “bite lightly,” and “bite strongly.” The authors concluded that the use of optical impression methods under a “strong bite force” condition may reduce deviation and allow for stable interocclusal registration. This method will help to obtain accurate prosthodontic treatment in digital dentistry.
There is a debate among clinicians regarding severe endodontically treated teeth (ETT) in terms of residual tooth substance—whether to extract the tooth or perform partial ferrule. This work conducts the first meta-analysis study that introduces clear evidence-based guidance for clinicians regarding partial ferrule so that they can take appropriate clinical decisions and adequately plan restorative dental treatments of ETT.
The widespread use of Polyetheretherketone (PEEK) as an oral implant material is an ongoing topic of investigation. This review article summarizes the current surface modification strategies used to improve the binding efficiency of the emerging biomaterial PEEK with bone and soft tissues. Although many studies have shown that various surface modifications can successfully improve the biological activity of PEEK, further in-vivo experiments and long-term clinical evaluations are required to investigate the effects of various surface modifications on the tissue integration ability of PEEK implants.
To predict the success of prosthodontic treatments and plan effective maintenance care strategies, it is essential to precisely evaluate the risk factors. This retrospective study reports the 5- and 10-year survival of the abutment teeth of removable partial dentures. In addition to the presence of root-canal treatment at the baseline, postoperative radiographic changes in crown-root ratio and alveolar bone density on the denture side were significantly associated with abutment tooth loss.
In silico finite element analysis (FEA) has been widely used to evaluate stress/strain distribution in bone and implants under standardized conditions. The authors adopted a time-dependent FEA to evaluate the influence of subcrestal implant placement depth on bone remodeling. The time-dependent FEA demonstrated that an implant depth of more than 1.5 mm exhibited a high stress concentration and great overloading elements, particularly in cancellous bone. The established in silico approach will possibly become a useful tool to uncover the optimal implant placement depth that provides an appropriate bone response.
Denture adhesives increase the retention and stability of removable prostheses; however, they are difficult to remove, leading to the accumulation of denture plaques/calculi containing oral bacteria. In this study, Harada et al. evaluated the different types of surfactants for removing cream-type denture adhesives by focusing on their hydrophilic-lipophilic balance (HLB). The data provided the optimal HLB range that efficiently removes denture adhesives without damaging denture materials.