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Faur AB, Rotar RN, Jivănescu A. Intaglio surface trueness of dentures bases fabricated with 3D printing vs. conventional workflow: a clinical study. BMC Oral Health 2024; 24:671. [PMID: 38851680 PMCID: PMC11162014 DOI: 10.1186/s12903-024-04439-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Accepted: 06/03/2024] [Indexed: 06/10/2024] Open
Abstract
The latest generation of intraoral scanners can record the prosthetic field with relative ease, high accuracy and comfort for the patient, and have enabled fully digital protocols for designing and manufacturing complete dentures. The present study aims to examine the intaglio surface trueness of 3D printed maxillary dentures produced by fully digital workflow in comparison with dentures produced by analogue clinical and laboratory prosthetic workflow. The edentulous maxillary arch of 15 patients was scanned with an intraoral scanner as well as the intaglio of the delivered conventional denture. The scan of the edentulous arch was imported into a dental design software to produce the denture base which was then 3D printed. The intaglio surface of the finished 3D printed denture bases was digitized and used to assess the trueness of the printed denture bases compared to the intaglio surface of the conventional dentures as well as performing a trueness comparison in relation to the scanned edentulous arches. The dataset (n = 30) was subjected to Kruskal-Wallis test analysis, the significance level being established at α = 0.05. The results of the study showed that the printed group displayed better trueness values with a median of 176.9 μm while the analogue group showed a median of 342 μm. Employing a fully digital workflow to produce 3D-printed denture bases yields a consistent and precise manufacturing method when accounting for the intaglio surface of the denture.
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Affiliation(s)
- Andrei-Bogdan Faur
- Department of Prosthodontics, University of Medicine and Pharmacy "Victor Babes", B-dul Revolutiei 1989, No. 9, Timisoara, 300580, Romania.
- TADERP Research Center, Department of Prosthodontics, University of Medicine and Pharmacy "Victor Babes", B-dul Revolutiei 1989, No. 9, Timisoara, 300580, Romania.
| | - Raul Nicolae Rotar
- Department of Prosthodontics, University of Medicine and Pharmacy "Victor Babes", B-dul Revolutiei 1989, No. 9, Timisoara, 300580, Romania
- TADERP Research Center, Department of Prosthodontics, University of Medicine and Pharmacy "Victor Babes", B-dul Revolutiei 1989, No. 9, Timisoara, 300580, Romania
| | - Anca Jivănescu
- Department of Prosthodontics, University of Medicine and Pharmacy "Victor Babes", B-dul Revolutiei 1989, No. 9, Timisoara, 300580, Romania
- TADERP Research Center, Department of Prosthodontics, University of Medicine and Pharmacy "Victor Babes", B-dul Revolutiei 1989, No. 9, Timisoara, 300580, Romania
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Patel M, Barrera L, Chu L, Whang K. Development of an antimicrobial, 3D printable denture base material with K18 quaternary ammonium silane-functionalized methyl methacrylate and filler. J Prosthet Dent 2024; 131:1251.e1-1251.e8. [PMID: 38523046 DOI: 10.1016/j.prosdent.2024.03.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 03/04/2024] [Accepted: 03/08/2024] [Indexed: 03/26/2024]
Abstract
STATEMENT OF PROBLEM Denture base materials are highly susceptible to microbial colonization, which can lead to denture stomatitis. In addition, patients who sleep with their dentures have an increased chance of contracting pneumonia. Commercially available antimicrobial denture base materials to prevent or combat microbial colonization are lacking. PURPOSE The purpose of this in vitro study was to determine the effects of K18 quaternary ammonium methacryloxy silane-functionalized filler (K18-Filler) and methyl methacrylate (K18-MMA) on the polymerization of 3D printed denture base material and its esthetic, mechanical, and antimicrobial properties. MATERIAL AND METHODS K18-Filler (0%, 10%, 20% w/w) and K18-MMA (0%, 5%, 12.5% w/w) were added to a 3D printable denture base resin (Denture Base Resin, Original Pink; Formlabs Inc) and 3D printed. Specimens were tested by using the Rockwell15T hardness, near infrared FTIR monomer-to-polymer degree of conversion (DoC), transparency parameter (TP), color shift, and 3-point bend and by counting colony forming units against Streptococcus aureus, Streptococcus sanguinis and Candida albicans tests. Data were analyzed using analysis of variance with the Tukey-Kramer HSD post hoc test. RESULTS Control resins had significantly higher Rockwell15T hardness than most of the K18 groups (P<.05) but had comparable DoC with all K18 groups except one, showing that all groups were well polymerized. Controls had significantly higher TP than most K18 groups, but most K18 groups had ΔE<3.3, so the color shift was not noticeable. However, the 12.5% K18-MMA with 10% and 20% K18-Filler groups, which were also the groups used to test for antimicrobial activity, had ΔE>8. All K18 groups had comparable or greater moduli than the controls, but the controls had significantly higher ultimate transverse strengths than most K18 groups (P<.05). All 12.5% K18-MMA with K18-Filler groups had significant antimicrobial activity against S. aureus, S. sanguinis, and C. albicans. CONCLUSIONS 12.5% K18-MMA and K18-Filler produced 3D printable denture materials with comparable polymerization properties and significant antimicrobial properties against S. mutans, S. sanguinis, and C. albicans. High K18-MMA and K18-Filler concentrations caused significant color shifts and reductions in ultimate strengths.
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Affiliation(s)
- Mansi Patel
- Undergraduate student and Researcher, Department of Comprehensive Dentistry, University of Texas Health Science Center at San Antonio, San Antonio, Texas
| | - Leslie Barrera
- Research Associate, Department of Comprehensive Dentistry, University of Texas Health Science Center at San Antonio, San Antonio, Texas
| | - Lianrui Chu
- Adjunct Faculty Member, Department of Comprehensive Dentistry, University of Texas Health Science Center at San Antonio, San Antonio, Texas
| | - Kyumin Whang
- Professor, Department of Comprehensive Dentistry, University of Texas Health Science Center at San Antonio, San Antonio, Texas.
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Ryser AS, Sabol J, Chew M, Handel S. A technique for determining the midline using a facebow. J Prosthet Dent 2024:S0022-3913(24)00293-2. [PMID: 38734532 DOI: 10.1016/j.prosdent.2024.04.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 04/15/2024] [Accepted: 04/17/2024] [Indexed: 05/13/2024]
Abstract
This dental technique described assists the clinician with determining the maxillary midline and for the maxillary midline to coincide with the facial midline. This is accomplished during the acquisition of a facebow registration which is often utilized during prosthetic rehabilitation.
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Affiliation(s)
- Andrew S Ryser
- Prosthodontic Resident, Department of Prosthodontics, Army Postgraduate Dental School, Postgraduate Dental College, Uniformed Services University, Fort Eisenhower, Ga.
| | - Jennifer Sabol
- Program Director, Department of Prosthodontics, Army Postgraduate Dental School, Postgraduate Dental College, Uniformed Services University, Fort Eisenhower, Ga
| | - Michael Chew
- Prosthodontic Resident, Department of Prosthodontics, Army Postgraduate Dental School, Postgraduate Dental College, Uniformed Services University, Fort Eisenhower, Ga
| | - Steven Handel
- Assistant Program Director, Department of Prosthodontics, Army Postgraduate Dental School, Postgraduate Dental College, Uniformed Services University, Fort Eisenhower, Ga
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Alhajj MN, Halboub E, Yacob N, Al-Maweri SA, Ahmad SF, Celebić A, Al-Mekhlafi HM, Salleh NM. Adhesion of Candida Albicans to digital versus conventional acrylic resins: a systematic review and meta-analysis. BMC Oral Health 2024; 24:303. [PMID: 38439020 PMCID: PMC10910815 DOI: 10.1186/s12903-024-04083-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 02/27/2024] [Indexed: 03/06/2024] Open
Abstract
BACKGROUND The present systematic review and meta-analysis investigated the available evidence about the adherence of Candida Albicans to the digitally-fabricated acrylic resins (both milled and 3D-printed) compared to the conventional heat-polymerized acrylic resins. METHODS This study followed the guidelines of the Preferred Reporting Items for Systematic Review and Meta-analyses (PRISMA). A comprehensive search of online databases/search tools (Web of Science, Scopus, PubMed, Ovid, and Google Scholar) was conducted for all relevant studies published up until May 29, 2023. Only in-vitro studies comparing the adherence of Candida albicans to the digital and conventional acrylic resins were included. The quantitative analyses were performed using RevMan v5.3 software. RESULTS Fourteen studies were included, 11 of which were meta-analyzed based on Colony Forming Unit (CFU) and Optical Density (OD) outcome measures. The pooled data revealed significantly lower candida colonization on the milled digitally-fabricated compared to the heat-polymerized conventionally-fabricated acrylic resin materials (MD = - 0.36; 95%CI = - 0.69, - 0.03; P = 0.03 and MD = - 0.04; 95%CI = - 0.06, - 0.01; P = 0.0008; as measured by CFU and OD respectively). However, no differences were found in the adhesion of Candida albicans between the 3D-printed digitally-fabricated compared to the heat-polymerized conventionally-fabricated acrylic resin materials (CFU: P = 0.11, and OD: P = 0.20). CONCLUSION The available evidence suggests that candida is less likely to adhere to the milled digitally-fabricated acrylic resins compared to the conventional ones.
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Affiliation(s)
- Mohammed Nasser Alhajj
- Department of Restorative Dentistry, Faculty of Dentistry, Universiti Malaya, 50603, Kuala Lumpur, Federal Territory of Kuala Lumpur, Malaysia
| | - Esam Halboub
- Department of Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, Jazan University, Jazan, Saudi Arabia
- Department of Oral Medicine, Oral Pathology and Oral Radiology, Faculty of Dentistry, Sana'a University, Sana'a, Yemen
| | - Norlela Yacob
- Department of Conservative Dentistry & Prosthodontics, Faculty of Dentistry, Universiti Sains Islam Malaysia, Negeri Sembilan, Malaysia
| | | | - Siti Fauzza Ahmad
- Department of Restorative Dentistry, Faculty of Dentistry, Universiti Malaya, 50603, Kuala Lumpur, Federal Territory of Kuala Lumpur, Malaysia
| | - Asja Celebić
- Department of Removable Prosthodontics, Faculty of Dentistry, University of Zagreb, Zagreb, Croatia
| | - Hesham M Al-Mekhlafi
- Department of Parasitology, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Federal Territory of Kuala Lumpur, Malaysia
| | - Nosizana Mohd Salleh
- Department of Restorative Dentistry, Faculty of Dentistry, Universiti Malaya, 50603, Kuala Lumpur, Federal Territory of Kuala Lumpur, Malaysia.
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Luo K, Liu Q, Alhotan A, Dai J, Li A, Xu S, Li P. Effect of post-curing conditions on surface characteristics, physico-mechanical properties, and cytotoxicity of a 3D-printed denture base polymer. Dent Mater 2024; 40:500-507. [PMID: 38184445 DOI: 10.1016/j.dental.2023.12.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 12/15/2023] [Accepted: 12/19/2023] [Indexed: 01/08/2024]
Abstract
OBJECTIVE This study aims to investigate the influence of post-polymerization (post-curing) conditions on surface characteristics, flexural properties, water sorption and solubility, and cytotoxicity of additively manufactured denture base materials. METHODS The tested specimens were additively manufactured using digital light processing and classified into different post-curing condition groups: submerged in water (WAT), submerged in glycerin (GLY), and air exposure (AIR). An uncured specimen (UNC) was used as a control. The surface topography and roughness were observed. The flexural strength and modulus were determined via a three-point bending test. The water sorption and solubility were subsequently tested. Finally, an extract test was performed to assess cytotoxicity. RESULTS Different post-curing conditions had no significant effects on the surface topography and roughness (Sa value). Various post-curing conditions also had no significant effects on the flexural strength. Notably, the flexural modulus of the WAT group (2671.80 ± 139.42 MPa) was significantly higher than the AIR group (2197.47 ± 197.93 MPa, p = 0.0103). After different post-curing conditions, the water sorption and solubility of the specimens met the ISO standards. Finally, all post-curing conditions effectively reduced cytotoxic effects. SIGNIFICANCES Post-curing with different oxygen levels improved flexural properties, and flexural modulus significantly increased after the specimens were submerged in water. In addition, water sorption and solubility, and cytocompatibility were optimized by post-curing, irrespective of the post-curing conditions. Therefore, the water-submerged conditions optimized the flexural modulus of the 3D-printed denture base materials.
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Affiliation(s)
- Ke Luo
- Center of Oral Implantology, Stomatological Hospital, School of Stomatology, Southern Medical University, South Jiangnan Road No. 366, Guangzhou 510280, China
| | - Qian Liu
- Center of Oral Implantology, Stomatological Hospital, School of Stomatology, Southern Medical University, South Jiangnan Road No. 366, Guangzhou 510280, China
| | - Abdulaziz Alhotan
- Dental Health Department, College of Applied Medical Sciences, King Saud University, P.O.Box 10219, Riyadh 12372, Saudi Arabia
| | - Jingtao Dai
- Department of Orthodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, South Jiangnan Road No. 366, Guangzhou 510280, China
| | - An Li
- Department of Periodontology, Stomatological Hospital, School of Stomatology, Southern Medical University, South Jiangnan Road No. 366, Guangzhou 510280, China
| | - Shulan Xu
- Center of Oral Implantology, Stomatological Hospital, School of Stomatology, Southern Medical University, South Jiangnan Road No. 366, Guangzhou 510280, China.
| | - Ping Li
- School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Medical University, Guangzhou, Guangdong 510182, China; Department of Prosthodontics, School and Hospital of Stomatology, Guangzhou Medical University, Guangzhou, Guangdong 510182, China.
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Vuksic J, Pilipovic A, Poklepovic Pericic T, Kranjcic J. The Influence of Contemporary Denture Base Fabrication Methods on Residual Monomer Content, Flexural Strength and Microhardness. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1052. [PMID: 38473524 DOI: 10.3390/ma17051052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 02/19/2024] [Accepted: 02/22/2024] [Indexed: 03/14/2024]
Abstract
(1) Background: Digital technologies are available for denture base fabrication, but there is a lack of scientific data on the mechanical and chemical properties of the materials produced in this way. Therefore, the aim of this study was to investigate the residual monomer content, flexural strength and microhardness of denture base materials as well as correlations between investigated parameters. (2) Methods: Seven denture base materials were used: one conventional heat cured polymethyl methacrylate, one polyamide, three subtractive manufactured materials and two additive manufactured materials. High-performance liquid chromatography was used to determine residual monomer content and the test was carried out in accordance with the specification ISO No. 20795-1:2013. Flexural strength was also determined according to the specification ISO No. 20795-1:2013. The Vickers method was used to investigate microhardness. A one-way ANOVA with a Bonferroni post-hoc test was used for the statistical analysis. The Pearson correlation test was used for the correlation analysis. (3) Results: There was a statistically significant difference between the values of residual monomer content of the different denture base materials (p < 0.05). Anaxdent pink blank showed the highest value of 3.2% mass fraction, while Polident pink CAD-CAM showed the lowest value of 0.05% mass fraction. The difference between the flexural strength values of the different denture base materials was statistically significant (p < 0.05), with values ranging from 62.57 megapascals (MPa) to 103.33 MPa. The difference between the microhardness values for the different denture base materials was statistically significant (p < 0.05), and the values obtained ranged from 10.61 to 22.86 Vickers hardness number (VHN). A correlation was found between some results for the material properties investigated (p < 0.05). (4) Conclusions: The selection of contemporary digital denture base manufacturing techniques may affect residual monomer content, flexural strength and microhardness but is not the only criterion for achieving favourable properties.
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Affiliation(s)
- Josip Vuksic
- Department of Removable Prosthodontics, University of Zagreb School of Dental Medicine, Gunduliceva 5, 10000 Zagreb, Croatia
- Department of Prosthodontics, University Hospital Dubrava, Av. Gojka Šuška 6, 10000 Zagreb, Croatia
| | - Ana Pilipovic
- University of Zagreb Faculty of Mechanical Engineering and Naval Architecture, Ivana Lučića 5, 10000 Zagreb, Croatia
| | | | - Josip Kranjcic
- Department of Prosthodontics, University Hospital Dubrava, Av. Gojka Šuška 6, 10000 Zagreb, Croatia
- Department of Fixed Prosthodontics, University of Zagreb School of Dental Medicine, Gunduliceva 5, 10000 Zagreb, Croatia
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Tribst JPM, Pereira GKR, Kleverlaan CJ. Advancements in Dental Care: The Evolving Landscape of Prosthetic Dentistry. J Clin Med 2024; 13:1225. [PMID: 38592049 PMCID: PMC10932426 DOI: 10.3390/jcm13051225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 02/19/2024] [Indexed: 04/10/2024] Open
Abstract
In the dental field, the specialty of prosthodontics stands out as the frontline of innovation, continually pushing the boundaries to enhance both function and aesthetics for optimal oral rehabilitation [...].
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Affiliation(s)
- João Paulo Mendes Tribst
- Department of Reconstructive Oral Care, Academic Centre for Dentistry Amsterdam (ACTA), Universiteit van Amsterdam and Vrije Universiteit, 1081 LA Amsterdam, The Netherlands
| | - Gabriel Kalil Rocha Pereira
- Faculty of Dentistry, Federal University of Santa Maria (UFSM), Santa Maria 97105-900, Rio Grande do Sul State, Brazil;
| | - Cornelis Johannes Kleverlaan
- Department of Dental Materials, Academic Centre for Dentistry Amsterdam (ACTA), Universiteit van Amsterdam and Vrije Universiteit, 1081 LA Amsterdam, The Netherlands
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Bessadet M, Drancourt N, El Osta N. Time efficiency and cost analysis between digital and conventional workflows for the fabrication of fixed dental prostheses: A systematic review. J Prosthet Dent 2024:S0022-3913(24)00003-9. [PMID: 38302291 DOI: 10.1016/j.prosdent.2024.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 01/02/2024] [Accepted: 01/08/2024] [Indexed: 02/03/2024]
Abstract
STATEMENT OF PROBLEM Time and cost are factors that influence a patient's decision on dental prosthetic treatment. Evidence is needed to demonstrate that restoration using digital systems is more rapid and less costly than the conventional process. PURPOSE The purpose of this systematic review was to analyze and compare the duration and cost of fixed dental prostheses fabricated using digital and conventional methods from scanning or impression making to delivery of the prosthesis. MATERIAL AND METHODS A systematic review was performed following the Preferred Reporting Items for Systematic Reviews and Meta-Analysis Protocol (PRISMA-P 2015) guidelines. The analysis methods and inclusion criteria were documented in a protocol registered in the Prospective International Register of Systematic Reviews (PROSPERO) (CRD42023458734). The bibliographic search was carried out using PubMed, Cochrane, and PROSPERO databases. The main keywords used were (Prosthodontic OR restorative dentistry OR denture) AND (CAD CAM OR Digital workflow OR Computer Dentistry OR Digital Design) AND (Economic OR cost OR Financial OR time efficiency). Two investigators undertook the different steps of article selection. RESULTS A total of 8 articles published between 2010 and 2023 were found for the qualitative synthesis by using the search criteria. Two studies showed that conventional impressions took more time than digital scans for the fabrication of a single crown, and 1 study showed the opposite. One study found that a digital scan was faster than conventional impression making for the fabrication of a 3-unit fixed partial denture, and another study showed the opposite. The dental laboratory technician spent more time on the conventional workflow than the digital workflow for the 3-unit framework and veneering process. No difference was found between conventional and digital workflows for clinical evaluation and chairside adjustment for the fabrication of a single crown. No articles have compared the cost of fixed prostheses. CONCLUSIONS The digital pathway can shorten the laboratory process. However, the duration of the impression or scan may vary depending on the technique used. Studies are needed to analyze the cost-effectiveness of the fabrication of tooth-supported restorations.
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Affiliation(s)
- Marion Bessadet
- Vice Dean, Senior Lecturer, Department of Prosthodontics, UFR d'Odontologie, Clinical Odontology Research Center (CROC), University of Clermont Auvergne, Clermont-Ferrand, France; and Hospital Practitioner, CHU Clermont-Ferrand, Odontology Department, Clermont-Ferrand, France
| | - Noémie Drancourt
- Lecturer, Department of Prosthodontics, UFR d'Odontologie, Clinical Odontology Research Center (CROC), University of Clermont Auvergne, Clermont-Ferrand, France; and Hospital Practitioner, CHU Clermont-Ferrand, Odontology Department, Clermont-Ferrand, France
| | - Nada El Osta
- Professor, Department of Prosthodontics, UFR d'Odontologie, Clinical Odontology Research Center (CROC), University of Clermont Auvergne, Clermont-Ferrand, France.
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Yan S, Zhou JL, Zhang RJ, Tan FB. Evaluation of the influence of different build angles on the surface characteristics, accuracy, and dimensional stability of the complete denture base printed by digital light processing. Heliyon 2024; 10:e24095. [PMID: 38226211 PMCID: PMC10788800 DOI: 10.1016/j.heliyon.2024.e24095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 12/18/2023] [Accepted: 01/03/2024] [Indexed: 01/17/2024] Open
Abstract
Purpose This study aims to investigate the influence of the build angle on the surface characteristics, accuracy, and dimensional stability of digital light processing (DLP) printed resin bases. Material and methods Rectangular and complete denture base samples were fabricated at 0, 45, and 90-degree angles (n = 5 for rectangular samples; n = 10 for maxillary and mandibular denture base samples) using a DLP printer. Surface morphology and roughness were assessed using a profilometer, followed by measuring hydrophilicity with a contact angle meter. Accuracy (trueness and precision) and dimensional stability were evaluated at intervals of 1, 3, 7, 14, 28, and 42 days after base printing using best-fit-alignment and deviation analysis in 3D software. Statistical analysis was performed using one-way ANOVA for surface characteristics (α = 0.05), multi-way ANOVA for accuracy and dimensional stability data, and Tukey's test for post-hoc comparisons. Results The 0-degree group exhibited significantly lower mean roughness (1.27 ± 0.19 μm) and contact angle (80.50 ± 3.71°) (P < 0.001) compared to the 90-degree and 45-degree groups. The 0-degree build angle led to superior trueness (maxilla: 77.80 ± 9.35 μm, mandible: 61.67 ± 10.32 μm) and precision (maxilla: 27.51 ± 7.43 μm, mandible: 53.50 ± 15.16 μm) compared to other groups (P < 0.001). Maxillary base precision was superior to mandibular base precision (P < 0.001). The maxillary base exhibited less dimensional deviation than the mandibular base. The 90-degree group showed the highest deviation compared to the other two groups, and all groups' deviations increased over time (P < 0.001). Conclusions The build angle significantly influences the surface characteristics, accuracy, and dimensional stability of DLP-printed denture bases. A 0-degree build angle provides the most favorable performance. The maxillary base displayed superior precision and dimensional stability than the mandibular base.
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Affiliation(s)
- Shan Yan
- College of Stomatology, Chongqing Medical University, Chongqing, 400015, China
| | - Jia-Ling Zhou
- College of Stomatology, Chongqing Medical University, Chongqing, 400015, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, 401147, China
| | - Ruo-Jin Zhang
- College of Stomatology, Chongqing Medical University, Chongqing, 400015, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, 401147, China
| | - Fa-Bing Tan
- College of Stomatology, Chongqing Medical University, Chongqing, 400015, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, 401147, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, 401147, China
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Arora O, Ahmed N, Siurkel Y, Ronsivalle V, Cicciù M, Minervini G. A comparative evaluation of physical properties of CAD/CAM complete denture resins- an in vitro study. BMC Oral Health 2024; 24:65. [PMID: 38200506 PMCID: PMC10777544 DOI: 10.1186/s12903-023-03708-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 11/23/2023] [Indexed: 01/12/2024] Open
Abstract
BACKGROUND In dentistry, there is a growing preference for computer-aided design and computer-aided manufacturing (CAD/CAM) systems over traditional laboratory procedures. However, there is not much literature comparing various CAD/CAM materials. Thus, this study aimed to assess and compare the color stability and hardness of gingival and tooth colored milled and 3D-printed acrylic resins. MATERIALS AND METHODS Four types of CAD/CAM materials were prepared: 3D-printed pink shade (PP), milled polymenthymethacrylate (PMMA) pink shade (MP), 3D-printed tooth shade (PT) and milled PMMA tooth shade (MT) (n = 6). For hardness, disc shaped samples of 15 mm × 2 mm and for color stability, bar shaped samples of 65mmx10mmx2.5 mm were prepared and polished. Vickers hardness test was performed in a microhardness tester. Color stability test was done by immersing in coffee solution and coca cola for 7 days. Day 0 and day 7 measurements were recorded using a digital spectrophotometer and the change in color was calculated. For statistical analysis, one-way ANOVA and Tukey's post hoc tests were done. RESULTS For color stability, milled PMMA was superior to 3D-printed resin samples. Milled pink and tooth shade samples had similar color stability, whereas 3D-printed tooth shade samples were more color stable as compared to pink shade 3D-printed samples. For hardness, milled tooth shade PMMA was the most superior one, followed by 3D-printed tooth shade, whereas pink shade milled PMMA and 3D-printed resin samples had similar hardness values and were inferior to the tooth shade CAD/CAM materials. CONCLUSION Color stability of milled PMMA is superior to that of 3D-printed resins. Hardness of tooth shade milled and 3D-printed resins is more than that of pink shade milled and 3D-printed resins.
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Affiliation(s)
- Ojasvini Arora
- Department of Prosthodontics and Implantology, Saveetha Dental College And Hospitals, Saveetha Institute Of Medical And Technical Sciences Saveetha University Chennai, Chennai, Tamil Nadu, 600077, India
| | - Nabeel Ahmed
- Department of Prosthodontics and Implantology, Saveetha Dental College And Hospitals, Saveetha Institute Of Medical And Technical Sciences Saveetha University Chennai, Chennai, Tamil Nadu, 600077, India.
| | - Yuliia Siurkel
- International European University School of Medicine, Akademika Hlushkova Ave, 42В, Kyiv, 03187, Ukraine.
| | - Vincenzo Ronsivalle
- Department of Biomedical and Surgical and Biomedical Sciences, Catania University, 95123, Catania, Italy
| | - Marco Cicciù
- Department of Biomedical and Surgical and Biomedical Sciences, Catania University, 95123, Catania, Italy
| | - Giuseppe Minervini
- Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, Tamil Nadu, India
- Multidisciplinary Department of Medical-Surgical and Odontostomatological Specialties, University of Campania "Luigi Vanvitelli", 80121, Naples, Italy
- Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania Luigi Vanvitelli, Caserta, 81100, Italy
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Tew IM, Soo SY, Pow EHN. Digitally versus conventionally fabricated complete dentures: A systematic review on cost-efficiency analysis and patient-reported outcome measures (PROMs). J Prosthet Dent 2023:S0022-3913(23)00711-4. [PMID: 38000966 DOI: 10.1016/j.prosdent.2023.10.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 10/27/2023] [Accepted: 10/27/2023] [Indexed: 11/26/2023]
Abstract
STATEMENT OF PROBLEM Reports on digitally fabricated complete dentures are increasing. However, comprehensive evidence-based research on their cost-efficiency and patient-reported outcome measures (PROMs) is lacking. PURPOSE The purpose of this systematic review was to compare the cost-effectiveness and PROMs between digitally and conventionally fabricated complete dentures. MATERIAL AND METHODS An electronic search of publications from 2011 to mid-2023 was established using PubMed/Medline, EBSCOhost, and Google Scholar. Retrospective, prospective, randomized controlled, and randomized crossover clinical studies on at least 10 participants were included. A total of 540 articles were identified and assessed at the title, abstract, and full article level, resulting in the inclusion of 14 articles. Data on cost, number of visits, patient satisfaction, and oral health-related quality of life were examined and reported. RESULTS The systematic review included 572 digitally fabricated complete dentures and 939 conventionally fabricated complete dentures inserted in 1300 patients. Digitally fabricated complete dentures require less clinical time with a lower total cost, despite higher material costs compared with the conventional fabrication technique. Digitally and conventionally fabricated complete dentures were found to have significant effects on mastication efficiency, comfort, retention, stability, ease of cleaning, phonetics, and overall patient satisfaction, as well as social disability, functional limitation, psychological discomfort, physical pain, and handicap. CONCLUSIONS Digitally fabricated complete dentures are more cost-effective than conventionally fabricated dentures. There are various impacts of conventionally and digitally fabricated complete dentures on PROMs, and they are not better than one another.
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Affiliation(s)
- In Meei Tew
- Lecturer, Department of Restorative Dentistry, Faculty of Dentistry, The National University of Malaysia, Kuala Lumpur, Malaysia
| | - Suet Yeo Soo
- Lecturer, Department of Restorative Dentistry, Faculty of Dentistry, The National University of Malaysia, Kuala Lumpur, Malaysia
| | - Edmond Ho Nang Pow
- Clinical Associate Professor, Division of Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong, PR China.
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12
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Lobo GG, Vida MC, Hartrick NE, Guerrero GG. Fabrication of facially guided CAD-CAM complete dentures: A dental technique. J Prosthet Dent 2023:S0022-3913(23)00701-1. [PMID: 37989621 DOI: 10.1016/j.prosdent.2023.10.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 11/23/2023]
Abstract
An alternative protocol is presented to design computer-aided design and computer-aided manufacturing (CAD-CAM) complete dentures and overdentures using a facially guided digital design. The facially guided design protocol with CAD-CAM facilitated communication between the clinician and dental laboratory technician. A monolithic denture and overdenture were fabricated guided by preliminary dentures with 3-dimensionally (3D) printed denture bases and milled wax teeth.
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Affiliation(s)
- Guillermo Galván Lobo
- Private practice, Valladolid, Spain; Guest Professor, Department of Dentistry, University of Barcelona, L´Hospitalet de Llobregat, Barcelona, Spain; and Researcher, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain.
| | | | - Nancy E Hartrick
- Private practice, Royal Oak, Mich., Kois Center, Seattle, Wash ; and Clinical Instructor, Kois Center, Seattle, Wash
| | - Guillermo Galván Guerrero
- Private practice, Valladolid, Spain, Kois Center, Seattle, Wash; Guest Professor, Department of Dentistry, University of Barcelona, L´Hospitalet de Llobregat, Barcelona, Spain; Guest Professor, Department of Dentistry, International University of Catalunya, San Cugat del Valles, Barcelona, Spain; and Clinical Instructor, Kois Center, Seattle, Wash
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13
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Dib Zakkour S, Dib Zakkour J, Guadilla Y, Montero J, Dib A. Comparative Evaluation of the Digital Workflow and Conventional Method in Manufacturing Complete Removal Prostheses. MATERIALS (BASEL, SWITZERLAND) 2023; 16:6955. [PMID: 37959552 PMCID: PMC10650844 DOI: 10.3390/ma16216955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 09/10/2023] [Accepted: 10/27/2023] [Indexed: 11/15/2023]
Abstract
The aging population in developed countries has increased the number of edentulous patients and, therefore, the need for prosthetic rehabilitation to improve their quality of life. Complete dentures are the main treatment option in these cases. The use of CAD/CAM (Computer Aided Design/Computer Aided Manufacturing) in dentistry has improved clinical protocols and outcomes, achieving a reduction in work time and economic costs for the patients. The main objective of this review was to compare the characteristics of conventional and digital dentures, attempting to determine whether the use of new technologies represents an improvement in the properties of removable complete dentures. A bibliographic review was carried out in the PubMed/MEDLINE, Cochrane Library, Scielo, and Embase databases. With the initial search, 157 articles were obtained. After applying the inclusion and exclusion criteria, 64 publications were selected for this bibliographic review. The different conclusions of the studies consulted were compared regarding fit and retention, fracture resistance, surface roughness, biocompatibility, and aesthetics, taking into account the different methods of prostheses fabrication. In general, digital prostheses have shown better mechanical properties and, consequently, better biocompatibility and aesthetics than conventional prostheses. However, the obtained results were very heterogeneous, preventing a supported conclusion.
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Affiliation(s)
| | | | - Yasmina Guadilla
- Dental Clinic of the Faculty of Medicine, University of Salamanca, 37008 Salamanca, Spain; (Y.G.); (J.M.); (A.D.)
| | - Javier Montero
- Dental Clinic of the Faculty of Medicine, University of Salamanca, 37008 Salamanca, Spain; (Y.G.); (J.M.); (A.D.)
| | - Abraham Dib
- Dental Clinic of the Faculty of Medicine, University of Salamanca, 37008 Salamanca, Spain; (Y.G.); (J.M.); (A.D.)
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14
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Cagna DR, Donovan TE, McKee JR, Eichmiller F, Metz JE, Marzola R, Murphy KG, Troeltzsch M. Annual review of selected scientific literature: A report of the Committee on Scientific Investigation of the American Academy of Restorative Dentistry. J Prosthet Dent 2023; 130:453-532. [PMID: 37453884 DOI: 10.1016/j.prosdent.2023.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/02/2023] [Accepted: 06/05/2023] [Indexed: 07/18/2023]
Abstract
The Scientific Investigation Committee of the American Academy of Restorative Dentistry offers this review of the 2022 dental literature to briefly touch on several topics of interest to modern restorative dentistry. Each committee member brings discipline-specific expertise in their subject areas that include (in order of the appearance in this report): prosthodontics; periodontics, alveolar bone, and peri-implant tissues; dental materials and therapeutics; occlusion and temporomandibular disorders; sleep-related breathing disorders; oral medicine and oral and maxillofacial surgery; and dental caries and cariology. The authors focused their efforts on reporting information likely to influence the daily dental treatment decisions of the reader with an emphasis on innovations, new materials and processes, and future trends in dentistry. With the tremendous volume of literature published daily in dentistry and related disciplines, this review cannot be comprehensive. Instead, its purpose is to update interested readers and provide valuable resource material for those willing to subsequently pursue greater detail on their own. Our intent remains to assist colleagues in navigating the tremendous volume of newly minted information produced annually. Finally, we hope that readers find this work helpful in managing patients.
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Affiliation(s)
- David R Cagna
- Professor, Associate Dean, Chair, and Residency Director, Department of Prosthodontics, University of Tennessee Health Sciences Center College of Dentistry, Memphis, Tenn.
| | - Terence E Donovan
- Professor, Department of Comprehensive Oral Health, University of North Carolina School of Dentistry, Chapel Hill, NC
| | - James R McKee
- Private practice, Restorative Dentistry, Downers Grove, Ill
| | - Frederick Eichmiller
- Vice President and Science Officer (Emeritus), Delta Dental of Wisconsin, Stevens Point, Wis
| | - James E Metz
- Private practice, Restorative Dentistry, Columbus, Ohio
| | | | - Kevin G Murphy
- Associate Clinical Professor, Department of Periodontics, University of Maryland College of Dentistry, Baltimore, Md
| | - Matthias Troeltzsch
- Private practice, Oral, Maxillofacial, and Facial Plastic Surgery, Ansbach, Germany; Department of Oral and Maxillofacial Surgery and Facial Plastic Surgery, University Hospital, Ludwig Maximilian University of Munich (LMU), Munich, Germany
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15
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Baciu ER, Savin CN, Tatarciuc M, Mârțu I, Butnaru OM, Aungurencei AE, Mihalache AM, Diaconu-Popa D. Experimental Study on Mechanical Properties of Different Resins Used in Oral Environments. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1042. [PMID: 37374246 DOI: 10.3390/medicina59061042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 05/23/2023] [Accepted: 05/23/2023] [Indexed: 06/29/2023]
Abstract
Background and Objectives: Acrylic resins remain the materials of choice for removable prosthesis due to their indisputable qualities. The continuous evolution in the field of dental materials offers practitioners today a multitude of therapeutic options. With the development of digital technologies, including both subtractive and additive methods, workflow has been considerably reduced and the precision of prosthetic devices has increased. The superiority of prostheses made by digital methods compared to conventional prostheses is much debated in the literature. Our study's objective was to compare the mechanical and surface properties of three types of resins used in conventional, subtractive, and additive technologies and to determine the optimal material and the most appropriate technology to obtain removable dentures with the highest mechanical longevity over time. Materials and Methods: For the mechanical tests, 90 samples were fabricated using the conventional method (heat curing), CAD/CAM milling, and 3D printing technology. The samples were analyzed for hardness, roughness, and tensile tests, and the data were statistically compared using Stata 16.1 software (StataCorp, College Station, TX, USA). A finite element method was used to show the behavior of the experimental samples in terms of the crack shape and its direction of propagation. For this assessment the materials had to be designed inside simulation software that has similar mechanical properties to those used for obtaining specimens for tensile tests. Results: The results of this study suggested that CAD/CAM milled samples showed superior surface characteristics and mechanical properties, comparable with conventional heat-cured resin samples. The propagation direction predicted by the finite element analysis (FEA) software was similar to that observed in a real-life specimen subjected to a tensile test. Conclusions: Removable dentures made from heat-cured resins remain a clinically acceptable option due to their surface quality, mechanical properties, and affordability. Three-dimensional printing technology can be successfully used as a provisional or emergency therapeutic solution. CAD/CAM milled resins exhibit the best mechanical properties with great surface finishes compared to the other two processing methods.
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Affiliation(s)
- Elena-Raluca Baciu
- Department of Oral Implantology, Discipline of Dental Materials, Faculty of Dental Medicine, University of Medicine and Pharmacy "Grigore T. Popa", 700115 Iași, Romania
| | - Carmen Nicoleta Savin
- Department of Surgery, Discipline of Pediatric Dentistry, Faculty of Dental Medicine, University of Medicine and Pharmacy "Grigore T. Popa", 700115 Iași, Romania
| | - Monica Tatarciuc
- Department of Oral Implantology, Removable Dentures and Technology, Faculty of Dental Medicine, University of Medicine and Pharmacy "Grigore T. Popa", 700115 Iași, Romania
| | - Ioana Mârțu
- Department of Oral Implantology, Removable Dentures and Technology, Faculty of Dental Medicine, University of Medicine and Pharmacy "Grigore T. Popa", 700115 Iași, Romania
| | - Oana Maria Butnaru
- Department of Surgery, Discipline of Basics of Physics and Biophysics in Dental Medicine, Faculty of Dental Medicine, University of Medicine and Pharmacy "Grigore T. Popa", 700115 Iași, Romania
| | - Andra Elena Aungurencei
- Department of Oral Implantology, Removable Dentures and Technology, Faculty of Dental Medicine, University of Medicine and Pharmacy "Grigore T. Popa", 700115 Iași, Romania
| | - Andrei-Marius Mihalache
- Department of Machine Manufacturing Technology, "Gheorghe Asachi" Technical University of Iași, 700050 Iași, Romania
| | - Diana Diaconu-Popa
- Department of Oral Implantology, Removable Dentures and Technology, Faculty of Dental Medicine, University of Medicine and Pharmacy "Grigore T. Popa", 700115 Iași, Romania
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16
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Potential Impact of Prosthetic Biomaterials on the Periodontium: A Comprehensive Review. Molecules 2023; 28:molecules28031075. [PMID: 36770741 PMCID: PMC9921997 DOI: 10.3390/molecules28031075] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/14/2023] [Accepted: 01/17/2023] [Indexed: 01/24/2023] Open
Abstract
The success of a prosthetic treatment is closely related to the periodontal health of the individual. The aim of this article was to review and present the importance of prosthetic restorative materials on the condition of the periodontium, the changes that occur in the composition of the subgingival microbiota and the levels of inflammatory markers in gingival crevicular fluid. Articles on the influence of different prosthetic restorative materials on subgingival microbiota and proinflammatory cytokines were searched for using the keywords "prosthetic biomaterials", "fixed prosthesis", "periodontal health", "subgingival microbiota", "periodontal biomarkers" and "gingival crevicular fluid" in PubMed/Medline, Science Direct, Scopus and Google Scholar. The type of material used for prosthesis fabrication together with poor marginal and internal fit can result in changes in the composition of the subgingival microbiota, as well as increased accumulation and retention of dentobacterial plaque, thus favoring the development of periodontal disease and prosthetic treatment failure. Biological markers have helped to understand the inflammatory response of different prosthetic materials on periodontal tissues with the main purpose of improving their clinical application in patients who need them. Metal-free ceramic prostheses induce a lower inflammatory response regardless of the fabrication method; however, the use of CAD/CAM systems is recommended for their fabrication. In addition, it is presumed that metal-ceramic prostheses cause changes in the composition of the subgingival microbiota producing a more dysbiotic biofilm with a higher prevalence of periodontopathogenic bacteria, which may further favor periodontal deterioration.
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17
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Digital versus Conventional Dentures: A Prospective, Randomized Cross-Over Study on Clinical Efficiency and Patient Satisfaction. J Clin Med 2023; 12:jcm12020434. [PMID: 36675365 PMCID: PMC9865095 DOI: 10.3390/jcm12020434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 12/29/2022] [Accepted: 12/30/2022] [Indexed: 01/06/2023] Open
Abstract
Digital technology facilitates the manufacturing of complete dentures; however, clinical and patient-reported outcomes are underreported. This prospective, randomized, single-blind cross-over study reports the clinical and patient-related outcomes of 10 edentulous patients receiving digital dentures prepared with the Vita Vionic System and conventional dentures produced from heat-polymerized polymethylmethacrylate resin. Clinical efficiency was stated based on the Sato score for quantitative assessment of complete denture quality. Patient satisfaction was evaluated with the oral health-related quality of life questionnaire (OHIP-20). We report here that the Sato score was slightly higher in patients receiving digital versus conventional dentures with a mean of 73.2 ± 12.3 and 67.4 ± 11.8, respectively (p = 0.16). Moreover, upper and lower stability was superior in digital dentures (p = 0.03 and p = 0.10, respectively), while denture polish was better in conventional dentures (p = 0.03). Quality of life was slightly higher in patients receiving conventional compared to digital dentures with an OHIP-20 of 101.7 ± 12.0 and 95.6 ± 24.2, respectively (p = 0.33). Taken together and when considering the low power of the study, our findings suggest a trend towards better clinical efficiency of digital compared to conventional dentures, while patient satisfaction remained unaffected by the type of manufacturing.
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18
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Wajdan N, Aslam K, Amin R, Khan S, Ahmed N, Lal A, AlHamdan EM, Vohra F, Abduljabbar T, Heboyan A. Anti-fungal efficacy of Miswak Extract (Salvadora Persica) and commercial cleaner against Candida albicans on heat cured polymethylmethacrylate denture base. J Appl Biomater Funct Mater 2023; 21:22808000231165666. [PMID: 37128650 DOI: 10.1177/22808000231165666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023] Open
Abstract
AIM The aim of the study was to compare the antifungal efficacy between commercial cleaner (Corega) and Miswak extract (Salvadora persica) against Candida albicans on heat cured Polymethyl methacrylate (PMMA) acrylic denture base resin. MATERIALS AND METHODS Forty-eight samples of heat cured PMMA acrylic denture base resin were fabircated in the study. The sterile acrylic resin specimens were immersed in standardized cell suspension of Candida albicans and incubated for 60 min at 370°C for cell adhesion and 2 h at 370°C for biofilm formation. After 24 h biofilm was evaluated by cell viability (CFUs) on SDA and cell counting of Candida albicans under light microscope at 400× magnification. The fungicidal effect of commercial cleaner and Miswak extract on Candida albicans biofilm was then evaluated by colony-forming units on SDA and cell counting under light microscope at 400× magnification. RESULTS Screening test agar disk-diffusion assay showed mean inhibitory zone of 3 mm for commercial cleaner as compared to Miswak extract, which showed mean inhibitory zone of 2 and 1 mm for different concentrations. Broth microdilution method showed 31 mg/ml MIC and 62.5 mg/ml Minimal Fungicidal Concentration (MFC) values for commercial cleaner as compared to Miswak extract that showed 125 mg/ml MIC and 250 mg/ml MFC values against Candida albicans. A significant difference (p < 0.05) was observed between pre and post treatment of both commercial cleaner and Miswak extract, for CFUs and cell count for Candida albicans. CONCLUSION Commercial denture cleaner (Corega) showed better antifungal (C albicans) activity than Miswak extract (Salvadora persica) on heat cured PMMA acrylic denture base resin.
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Affiliation(s)
- Nadia Wajdan
- Department of Prosthodontics, Dr. Ishrat-ul-Ebad Khan Institute of Oral Health Sciences, Dow University of Health Sciences, Karachi, Sindh, Pakistan
| | - Kashif Aslam
- Department of Prosthodontics, Dow Dental College, Dow University of Health Sciences, Karachi, Sindh, Pakistan
| | - Rafat Amin
- Dow College of Biotechnology, Dow University of Health Sciences, Karachi, Sindh, Pakistan
| | - Sadaf Khan
- Dow College of Biotechnology, Dow University of Health Sciences, Karachi, Sindh, Pakistan
| | - Naseer Ahmed
- Department of Prosthodontics, Altamash Institute of Dental Medicine, Karachi, Pakistan
| | - Abhishek Lal
- Department of Prosthodontics, Altamash Institute of Dental Medicine, Karachi, Pakistan
| | - Eman M AlHamdan
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Fahim Vohra
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Tariq Abduljabbar
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Artak Heboyan
- Department of Prosthodontics, Faculty of Stomatology, Yerevan State Medical University after Mkhitar Heratsi, Yerevan, Armenia
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19
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Marya A, Rokaya D, Heboyan A, Fernandes GVDO. Biomolecular and Biochemical Aspects of the Oral Cavity. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248676. [PMID: 36557808 PMCID: PMC9782879 DOI: 10.3390/molecules27248676] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 12/02/2022] [Indexed: 12/13/2022]
Abstract
Recent advances in science, especially innovations in the field of biochemistry and materials science, greatly contribute to improvements in the prevention, diagnosis, and treatment of oral diseases [...].
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Affiliation(s)
- Anand Marya
- Department of Orthodontics, Faculty of Dentistry, University of Puthisastra, Phnom Penh 12211, Cambodia
| | - Dinesh Rokaya
- Department of Clinical Dentistry, Walailak University International College of Dentistry, Walailak University, Bangkok 10400, Thailand
| | - Artak Heboyan
- Department of Prosthodontics, Faculty of Stomatology, Yerevan State Medical University after Mkhitar Heratsi, Str. Koryun 2, Yerevan 0025, Armenia
- Correspondence: (A.H.); (G.V.d.O.F.)
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20
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Gimenez-Gonzalez B, Setyo C, Picaza MG, Tribst JPM. Effect of defect size and tooth anatomy in the measurements of a 3D patient monitoring tool. Heliyon 2022; 8:e12103. [PMID: 36561666 PMCID: PMC9763733 DOI: 10.1016/j.heliyon.2022.e12103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 10/22/2022] [Accepted: 11/28/2022] [Indexed: 12/12/2022] Open
Abstract
Purpose To assess the influence of defect size and tooth anatomy on the measurements performed by a 3D patient monitoring tool. Methods A fully dentate model was scanned to obtain a master digital file. Virtual duplicates received defects created in molars (16, 18, 28) and incisors (11, 12, 22), according to different depths (60, 80, 120 microns) and sizes (small, medium, large) totaling 180 conditions. The surface changes measured by the 3D Patient Monitoring Tool (3Shape TRIOS Patient Monitoring [TPM]) were compared with the reference by 2 calibrated operators. False Positives (FP), and False Negatives (FN) defect were registered. Pearson chi-square test, Multivariate binary logistic regression and Spearman rank correlation were used to evaluate the data (α = 0.05). Results A significant association was found between the area and the presence of FP and FN (P < .01). Larger defects had higher chances to present FP or an FN respectively. There was a significant association between the tooth and the presence of a FP value (FP, P = .02; FN, P = .005) specially in molars. No significant association was found between the defect depth and the presence of a FP value. Spearman rank correlation showed a strong association between the presence of an FP and an FN (r = 0.858, P < .01). Conclusions The defect size and tooth anatomy significantly affected the virtual follow-up, whereas defect depth did not. Small defects were correctly detected in all cases. An incorrect measurement on one side of the tooth simultaneously resulted in incorrect measurement on the opposite side. Clinical relevance The clinician should be aware that different factors related to the characteristics of the defects could affect the quality of the full-arch digital follow-up. Therefore, caution is needed when interpreting the models comparison in cases that a larger area of a tooth has been modified.
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Affiliation(s)
- Beatriz Gimenez-Gonzalez
- Department of Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), Universiteit van Amsterdam and Vrije Universiteit Amsterdam, 1081 LA Amsterdam, the Netherlands
| | - Christof Setyo
- Department of Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), Universiteit van Amsterdam and Vrije Universiteit Amsterdam, 1081 LA Amsterdam, the Netherlands
| | - Mikel Gomez Picaza
- Createch Medical, Polígono Kurutz-Gain Pabellón, 3B 20850 Mendaro, Spain
| | - João Paulo Mendes Tribst
- Department of Oral Regenarative Medicine, Academic Centre for Dentistry Amsterdam (ACTA), Universiteit van Amsterdam and Vrije Universiteit Amsterdam, 1081 LA Amsterdam, the Netherlands,Corresponding author.
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21
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Yazdanian M, Alam M, Abbasi K, Rahbar M, Farjood A, Tahmasebi E, Tebyaniyan H, Ranjbar R, Hesam Arefi A. Synthetic materials in craniofacial regenerative medicine: A comprehensive overview. Front Bioeng Biotechnol 2022; 10:987195. [PMID: 36440445 PMCID: PMC9681815 DOI: 10.3389/fbioe.2022.987195] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 10/26/2022] [Indexed: 07/25/2023] Open
Abstract
The state-of-the-art approach to regenerating different tissues and organs is tissue engineering which includes the three parts of stem cells (SCs), scaffolds, and growth factors. Cellular behaviors such as propagation, differentiation, and assembling the extracellular matrix (ECM) are influenced by the cell's microenvironment. Imitating the cell's natural environment, such as scaffolds, is vital to create appropriate tissue. Craniofacial tissue engineering refers to regenerating tissues found in the brain and the face parts such as bone, muscle, and artery. More biocompatible and biodegradable scaffolds are more commensurate with tissue remodeling and more appropriate for cell culture, signaling, and adhesion. Synthetic materials play significant roles and have become more prevalent in medical applications. They have also been used in different forms for producing a microenvironment as ECM for cells. Synthetic scaffolds may be comprised of polymers, bioceramics, or hybrids of natural/synthetic materials. Synthetic scaffolds have produced ECM-like materials that can properly mimic and regulate the tissue microenvironment's physical, mechanical, chemical, and biological properties, manage adherence of biomolecules and adjust the material's degradability. The present review article is focused on synthetic materials used in craniofacial tissue engineering in recent decades.
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Affiliation(s)
- Mohsen Yazdanian
- Research Center for Prevention of Oral and Dental Diseases, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Mostafa Alam
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Kamyar Abbasi
- Department of Prosthodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mahdi Rahbar
- Department of Restorative Dentistry, School of Dentistry, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Amin Farjood
- Orthodontic Department, Dental School, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Elahe Tahmasebi
- Research Center for Prevention of Oral and Dental Diseases, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Hamid Tebyaniyan
- Department of Science and Research, Islimic Azade University, Tehran, Iran
| | - Reza Ranjbar
- Research Center for Prevention of Oral and Dental Diseases, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Arian Hesam Arefi
- Dental Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
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22
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Insights and Advancements in Biomaterials for Prosthodontics and Implant Dentistry. Molecules 2022; 27:molecules27165116. [PMID: 36014357 PMCID: PMC9414069 DOI: 10.3390/molecules27165116] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 08/10/2022] [Indexed: 12/19/2022] Open
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Insights into Polymeric Materials for Prosthodontics and Dental Implantology. MATERIALS 2022; 15:ma15155383. [PMID: 35955317 PMCID: PMC9369636 DOI: 10.3390/ma15155383] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 08/02/2022] [Indexed: 12/13/2022]
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Stress Distribution Pattern in Zygomatic Implants Supporting Different Superstructure Materials. MATERIALS 2022; 15:ma15144953. [PMID: 35888420 PMCID: PMC9323759 DOI: 10.3390/ma15144953] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 07/14/2022] [Accepted: 07/15/2022] [Indexed: 12/25/2022]
Abstract
The aim of this study was to assess and compare the stress–strain pattern of zygomatic dental implants supporting different superstructures using 3D finite element analysis (FEA). A model of a tridimensional edentulous maxilla with four dental implants was designed using the computer-aided design (CAD) software. Two standard and two zygomatic implants were positioned to support the U-shaped bar superstructure. In the computer-aided engineering (CAE) software, different materials have been simulated for the superstructure: cobalt–chrome (CoCr) alloy, titanium alloy (Ti), zirconia (Zr), carbon-fiber polymers (CF) and polyetheretherketone (PEEK). An axial load of 500 N was applied in the posterior regions near the zygomatic implants. Considering the mechanical response of the bone tissue, all superstructure materials resulted in homogeneous strain and thus could reconstruct the edentulous maxilla. However, with the aim to reduce the stress in the zygomatic implants and prosthetic screws, stiffer materials, such Zr, CoCr and Ti, appeared to be a preferable option.
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