aDoctoral student, Faculty of Dentistry, McGill University, Montreal, Quebec, Canada; and Lecturer, Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi ArabiabAssociate Dean of Knowledge Transfer and Internationalization and Associate Professor, Department of Restorative Dentistry, Department of Social and Preventive Medicine, Faculty of Dentistry, School of Public Health, University of Montreal, Montreal, Quebec, CanadacDoctoral student, Faculty of Dentistry, McGill University, Montreal, Quebec, Canada; and Teaching assistant, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi ArabiadDoctoral student, Department of Periodontology, School of Dentistry, School of Dentistry, Federal University of Rio Grande do Sul, Rio Grande do Sul, BrazileFaculty Lecturer and Clinical Instructor, Department of Prosthodontics, McGill University, Montreal, Quebec, CanadafResearcher, Dental Wings, Montreal, Quebec, CanadagAssociate Professor, Department of Prosthodontics, McGill University, Montreal, Quebec, CanadahFaculty of Dentistry, Division of Restorative Dentistry, McGill University, Montreal, Quebec, CanadaiAssociate professor, Department of Dental Materials and Prosthodontics, Faculty of Dentistry of Ribeirão Preto, University of São Paulo, São Paulo, BraziljProfessor, Oral Health Sciences, Faculty of Dentistry, and Associate Member, Department of Epidemiology and Biostatistics, Department of Oncology, Faculty of Medicine, McGill University, Montreal, Quebec, Canada
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Statement of problem:Clinical data regarding newly introduced laser-sintered removable partial dentures (RPDs) are needed before this technique can be recommended. Currently, only a few clinical reports have been published, with no clinical studies.Purpose:This clinical trial compared short-term satisfaction in patients wearing RPDs fabricated with conventional or computer-aided design and computer-aided manufacturing (CAD-CAM) laser-sintering technology.Material and methods:Twelve participants with partial edentulism were enrolled in this pilot crossover double-blinded clinical trial. Participants were randomly assigned to wear cast or CAD-CAM laser-sintered RPDs for alternate periods of 30 days. The outcome of interest was patient satisfaction as measured using the McGill Denture Satisfaction Instrument. Assessments was conducted at 1, 2, and 4 weeks. The participant's preference in regard to the type of prosthesis was assessed at the final evaluation. The linear mixed effects regression models for repeated measures were used to analyze the data, using the intention-to-treat principle. To assess the robustness of potential, incomplete adherence, sensitivity analyses were conducted.Results:Statistically significant differences were found in patients’ satisfaction between the 2 methods of RPD fabrication. Participants were significantly more satisfied with laser-sintered prostheses than cast prostheses in regard to general satisfaction, ability to speak, ability to clean, comfort, ability to masticate, masticatory efficiency, and oral condition (P<.05). At the end of the study, 5 participants preferred the laser-sintered, 1 preferred the cast RPD, and 3 had no preference.Conclusions:The use of CAD-CAM laser-sintering technology in the fabrication of removable partial dentures may lead to better outcomes in terms of patient satisfaction in the short term. The conclusion from this pilot study requires confirmation by a larger randomized controlled trial. Clinical Trial: ClinicalTrials.gov. A study about patient satisfaction with laser-sintered removable partial dentures; NCT02769715.