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Jafarpour D, El-Amier N, Feine J, Bedos C, Abi-Nader S, Esfandiari S, Shuster T, Zimmermann E, de Souza R. 3D printing vs traditional workflow for the fabrication of mandibular implant overdentures: study protocol for a mixed-methods cross-over RCT. Trials 2024; 25:267. [PMID: 38627819 PMCID: PMC11022432 DOI: 10.1186/s13063-024-08097-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 04/09/2024] [Indexed: 04/19/2024] Open
Abstract
BACKGROUND Complete tooth loss is a significant global oral health issue, particularly impacting older individuals with lower socioeconomic status. Computer-assisted technologies enhance oral healthcare access by the elderly. Despite promising in vitro reports on digital denture materials, evidence from randomized clinical trials (RCTs) is lacking to verify their performance. This cross-over RCT will investigate whether 3D-printed implant-retained mandibular overdentures (IMO) are more satisfactory for edentulous seniors than those made through traditional methods. METHODS/DESIGN We will recruit 26 completely edentulous participants (any sex/gender) based on the following eligibility criteria: age ≥ 60 years, no tooth extraction in the past 12 months, two implants in the lower jaw, and need for new dentures in both jaws. Each participant will receive two denture pairs, either manufactured by 3D printing or traditionally, to be worn in a random order. A timeline of 3 months with each denture pair will be considered for outcome assessment (total: 6 months). Patient satisfaction with dentures will be measured by the McGill Denture Satisfaction Questionnaire. We will evaluate other patient-reported outcomes (including oral health-related quality of life) as well as clinician-assessed quality and cost. At the end of the trial, participants will choose which denture pair they wish to keep and interviewed about their experiences with the 3D-printed IMO. The quantitative and qualitative data will be incorporated through an explanatory mixed-methods strategy. A final quantitative assessment will happen after 12 months with the preferred IMO to assess the long-term performance and maintenance needs. DISCUSSION This mixed-methods RCT will explore patient experiences with 3D-printed IMOs, aiming to assess the potential for altering clinical practice and dental public health policies. Our results will inform policies by showing whether 3D printing offers comparable outcomes at lower costs, facilitating greater access to oral care for the elderly. TRIAL REGISTRATION ClinicalTrials.gov, NCT06155630, Registered on 04 December 2023. https://classic. CLINICALTRIALS gov/ct2/show/NCT06155630.
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Affiliation(s)
- Dana Jafarpour
- Faculty of Dental Medicine and Oral Health Sciences, Strathcona Anatomy and Dentistry Building, McGill University, 3640 University Street, Room #M/65A, Montréal, QC, H3A 2B2, Canada
| | - Nesma El-Amier
- Faculty of Dental Medicine and Oral Health Sciences, Strathcona Anatomy and Dentistry Building, McGill University, 3640 University Street, Room #M/65A, Montréal, QC, H3A 2B2, Canada
- Faculty of Dentistry, Mansoura University, Mansoura, Egypt
| | - Jocelyne Feine
- Faculty of Dental Medicine and Oral Health Sciences, Strathcona Anatomy and Dentistry Building, McGill University, 3640 University Street, Room #M/65A, Montréal, QC, H3A 2B2, Canada
| | - Christophe Bedos
- Faculty of Dental Medicine and Oral Health Sciences, Strathcona Anatomy and Dentistry Building, McGill University, 3640 University Street, Room #M/65A, Montréal, QC, H3A 2B2, Canada
| | - Samer Abi-Nader
- Faculty of Dental Medicine and Oral Health Sciences, Strathcona Anatomy and Dentistry Building, McGill University, 3640 University Street, Room #M/65A, Montréal, QC, H3A 2B2, Canada
| | - Shahrokh Esfandiari
- Faculty of Dental Medicine, Faculty of Medicine, Université de Montréal, Montreal, Canada
| | - Tibor Shuster
- Department of Family Medicine, McGill University, Montreal, Canada
| | - Elizabeth Zimmermann
- Faculty of Dental Medicine and Oral Health Sciences, Strathcona Anatomy and Dentistry Building, McGill University, 3640 University Street, Room #M/65A, Montréal, QC, H3A 2B2, Canada
| | - Raphael de Souza
- Faculty of Dental Medicine and Oral Health Sciences, Strathcona Anatomy and Dentistry Building, McGill University, 3640 University Street, Room #M/65A, Montréal, QC, H3A 2B2, Canada.
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Zilberman-Kravits D, Harman-Boehm I, Shuster T, Meyerstein N. Increased red cell aggregation is correlated with HbA1C and lipid levels in type 1 but not type 2 diabetes. Clin Hemorheol Microcirc 2006; 35:463-71. [PMID: 17148845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The present study was designed to study RBC aggregability in type 1 and type 2 DM by a new method based on the dielectric properties of disperse systems. This dielectric method has a significantly higher sensitivity to detect enhanced RBC aggregation in DM than other methods. Aggregability is increased in type 1 DM and even more markedly in type 2 diabetic patients. The enhanced RBC aggregation in type 1 diabetes was significantly correlated with the levels of HbA(1C), cholesterol and triglycerides. However, no correlation between metabolic control and RBC aggregability was found in type 2 DM. The in vitro addition of non-toxic, low molecular weight dextran improves the high RBC aggregation in diabetes type 2. In the future, low molecular weight dextran may be used in DM patients clinically to lower the risk for vascular complications, after the problem of filtration is solved.
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Affiliation(s)
- D Zilberman-Kravits
- The Dr. J. Kaufmann Hematology Laboratory, Faculty of Health Sciences, Physiology Department, Ben-Gurion University, Beer-Sheva, Israel
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Taplin ME, Bubley GJ, Rajeshkumar B, Shuster T, Ko YJ, Morganstern DE. Docetaxel, estramustine, and short-term androgen withdrawal for patients with biochemical failure after definitive local therapy for prostate cancer. Semin Oncol 2001; 28:32-9. [PMID: 11685726 DOI: 10.1016/s0093-7754(01)90152-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Over the past 10 years, men with prostate cancer have received earlier diagnoses and are undergoing prostatectomy and/or radiation therapy with curative intent; however, many men have increasing prostate-specific antigen (PSA) levels without evidence of local progression or metastatic disease during the first 2 years after definitive local therapy. Optimal treatment of men with PSA-only recurrent prostate cancer has not been established. This ongoing phase II trial is evaluating docetaxel (70 mg/m(2) administered intravenously over 1 hour on day 2 every 21 days for four cycles) and estramustine (10 mg/kg/d orally on days 1 to 5 every 21 days for four cycles) followed by bicalutamide and goserelin acetate in men with increasing PSA levels after prostatectomy and/or radiation therapy. Patients received pretreatment with dexamethasone, and after the third patient enrolled, patients received warfarin for prophylaxis against thrombosis. Colony-stimulating factor support was allowed. In preliminary results, 11 of 15 patients completed protocol chemotherapy; 12 of 15 patients achieved complete response (ie, normalization of PSA) after four cycles of chemotherapy. In addition, testosterone levels were reduced to the castrate range in all patients after chemotherapy. The regimen was generally well tolerated, and toxicities were mostly hematologic, with grade (3/4) neutropenia reported in approximately half of patients. Preliminary results of this phase II trial are encouraging, and enrollment is ongoing.
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Affiliation(s)
- M E Taplin
- Division of Hematology-Oncology, University of Massachusetts Memorial Health Center, Worcester, MA 01566, USA
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