Cost analysis of casting techniques.
<div><p>The aim of this study was to compare the compressive strength, microstructural characteristics, and cost-effectiveness of cast dental posts fabricated using two techniques: torch casting (TC) and electric arc casting (EAC), both integral to the lost wax method. Employing an appli...
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| منشور في: |
2025
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| _version_ | 1852020929162379264 |
|---|---|
| author | Víctor Hugo Gonzalo Quispe Mamani (21213092) |
| author2 | César Alberto Luna Castillo (21213095) Dina Miryan Alanoca Sejje (21213098) Luis Alexander Orrego-Ferreyros (19648499) |
| author2_role | author author author |
| author_facet | Víctor Hugo Gonzalo Quispe Mamani (21213092) César Alberto Luna Castillo (21213095) Dina Miryan Alanoca Sejje (21213098) Luis Alexander Orrego-Ferreyros (19648499) |
| author_role | author |
| dc.creator.none.fl_str_mv | Víctor Hugo Gonzalo Quispe Mamani (21213092) César Alberto Luna Castillo (21213095) Dina Miryan Alanoca Sejje (21213098) Luis Alexander Orrego-Ferreyros (19648499) |
| dc.date.none.fl_str_mv | 2025-04-29T17:54:08Z |
| dc.identifier.none.fl_str_mv | 10.1371/journal.pone.0321724.t002 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/dataset/Cost_analysis_of_casting_techniques_/28896350 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Biophysics Medicine Science Policy Environmental Sciences not elsewhere classified Biological Sciences not elsewhere classified Chemical Sciences not elsewhere classified uniform elemental distribution monte carlo simulation lost wax method explore additional properties enhancing restoration durability 625 &# 8201 303 &# 8201 207 &# 8201 102 &# 8201 alloy cast posts electric arc casting applied research approach al ), nickel refined microstructure compared eac posts showed eac posts exhibited mpa versus 136 lost wax technique cu &# 8323 000 iterations revealed higher operational costs 001 ), indicating mean compressive strength fe phases compared eac samples exhibiting mean strength compressive strength eac ), variable costs future research tc posts ni ), 05 ), eac technique xlink "> two groups trace elements torch casting statistically significant specific inclusion significant advantage selection process results reveal ray diffraction primarily due predominant element precious gold porous surface microstructural characteristics irregular topography income countries identified copper homogeneous stoichiometry higher proportion experimental design exclusion criteria ensure precision enriched zones divided equally dispersive spectroscopy dental professionals corrosion resistance copper matrix clinical applicability also present |
| dc.title.none.fl_str_mv | Cost analysis of casting techniques. |
| dc.type.none.fl_str_mv | Dataset info:eu-repo/semantics/publishedVersion dataset |
| description | <div><p>The aim of this study was to compare the compressive strength, microstructural characteristics, and cost-effectiveness of cast dental posts fabricated using two techniques: torch casting (TC) and electric arc casting (EAC), both integral to the lost wax method. Employing an applied research approach with an experimental design, the study analyzed 40 non-precious gold (NPG) alloy cast posts, divided equally into two groups of 20 for each technique. The selection process was non-probabilistic and based on convenience, with specific inclusion and exclusion criteria to ensure precision and relevance. The results reveal a significant advantage for the EAC technique. In Essay 1, EAC posts exhibited a mean compressive strength of 206.102 MPa, compared to 157.207 MPa for TC posts. Similarly, in Essay 2, EAC posts showed a mean strength of 172.625 MPa versus 136.303 MPa for TC posts. These differences were statistically significant (p < 0.05), with EAC posts also displaying smaller failure diameters and areas, suggesting better load distribution. Morphological and microstructural analysis using scanning electron microscopy (SEM) revealed a porous surface with irregular topography in both techniques. However, EAC samples displayed crystalline growths within the copper matrix, indicating a non-homogeneous stoichiometry, while TC samples showed aluminum-enriched zones, suggesting a non-uniform elemental distribution. Chemical composition analysis via energy-dispersive spectroscopy (EDS) identified copper (Cu) as the predominant element in both samples, with trace elements such as aluminum (Al), nickel (Ni), and iron (Fe) also present. X-ray diffraction (XRD) analysis further revealed distinct crystalline phases, with EAC samples exhibiting a higher proportion of Cu₃Zn and gamma-Fe phases compared to TC samples. A cost analysis using Python 3.13 and Monte Carlo simulation with 1,000 iterations revealed that EAC is more expensive, with a total cost per unit of 2.181compared to 1.467 for TC, primarily due to higher operational costs. The Mann-Whitney U test confirmed significant differences in cost distributions (p < 0.001), indicating that EAC has higher and more variable costs. In conclusion, the study demonstrates that EAC produces dental models with significantly higher compressive strength and a more refined microstructure compared to TC, enhancing restoration durability. However, its higher operational costs must be considered. These findings provide valuable information for dental professionals, particularly in low- to middle-income countries, and suggest that future research should explore additional properties such as corrosion resistance and biocompatibility to further validate the clinical applicability of these materials.</p></div> |
| eu_rights_str_mv | openAccess |
| id | Manara_7eb1cb0c0a1b44bf05ab6d702d6eeb1f |
| identifier_str_mv | 10.1371/journal.pone.0321724.t002 |
| network_acronym_str | Manara |
| network_name_str | ManaraRepo |
| oai_identifier_str | oai:figshare.com:article/28896350 |
| publishDate | 2025 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Cost analysis of casting techniques.Víctor Hugo Gonzalo Quispe Mamani (21213092)César Alberto Luna Castillo (21213095)Dina Miryan Alanoca Sejje (21213098)Luis Alexander Orrego-Ferreyros (19648499)BiophysicsMedicineScience PolicyEnvironmental Sciences not elsewhere classifiedBiological Sciences not elsewhere classifiedChemical Sciences not elsewhere classifieduniform elemental distributionmonte carlo simulationlost wax methodexplore additional propertiesenhancing restoration durability625 &# 8201303 &# 8201207 &# 8201102 &# 8201alloy cast postselectric arc castingapplied research approachal ), nickelrefined microstructure comparedeac posts showedeac posts exhibitedmpa versus 136lost wax techniquecu &# 8323000 iterations revealedhigher operational costs001 ), indicatingmean compressive strengthfe phases comparedeac samples exhibitingmean strengthcompressive strengtheac ),variable costsfuture researchtc postsni ),05 ),eac techniquexlink ">two groupstrace elementstorch castingstatistically significantspecific inclusionsignificant advantageselection processresults revealray diffractionprimarily duepredominant elementprecious goldporous surfacemicrostructural characteristicsirregular topographyincome countriesidentified copperhomogeneous stoichiometryhigher proportionexperimental designexclusion criteriaensure precisionenriched zonesdivided equallydispersive spectroscopydental professionalscorrosion resistancecopper matrixclinical applicabilityalso present<div><p>The aim of this study was to compare the compressive strength, microstructural characteristics, and cost-effectiveness of cast dental posts fabricated using two techniques: torch casting (TC) and electric arc casting (EAC), both integral to the lost wax method. Employing an applied research approach with an experimental design, the study analyzed 40 non-precious gold (NPG) alloy cast posts, divided equally into two groups of 20 for each technique. The selection process was non-probabilistic and based on convenience, with specific inclusion and exclusion criteria to ensure precision and relevance. The results reveal a significant advantage for the EAC technique. In Essay 1, EAC posts exhibited a mean compressive strength of 206.102 MPa, compared to 157.207 MPa for TC posts. Similarly, in Essay 2, EAC posts showed a mean strength of 172.625 MPa versus 136.303 MPa for TC posts. These differences were statistically significant (p < 0.05), with EAC posts also displaying smaller failure diameters and areas, suggesting better load distribution. Morphological and microstructural analysis using scanning electron microscopy (SEM) revealed a porous surface with irregular topography in both techniques. However, EAC samples displayed crystalline growths within the copper matrix, indicating a non-homogeneous stoichiometry, while TC samples showed aluminum-enriched zones, suggesting a non-uniform elemental distribution. Chemical composition analysis via energy-dispersive spectroscopy (EDS) identified copper (Cu) as the predominant element in both samples, with trace elements such as aluminum (Al), nickel (Ni), and iron (Fe) also present. X-ray diffraction (XRD) analysis further revealed distinct crystalline phases, with EAC samples exhibiting a higher proportion of Cu₃Zn and gamma-Fe phases compared to TC samples. A cost analysis using Python 3.13 and Monte Carlo simulation with 1,000 iterations revealed that EAC is more expensive, with a total cost per unit of 2.181compared to 1.467 for TC, primarily due to higher operational costs. The Mann-Whitney U test confirmed significant differences in cost distributions (p < 0.001), indicating that EAC has higher and more variable costs. In conclusion, the study demonstrates that EAC produces dental models with significantly higher compressive strength and a more refined microstructure compared to TC, enhancing restoration durability. However, its higher operational costs must be considered. These findings provide valuable information for dental professionals, particularly in low- to middle-income countries, and suggest that future research should explore additional properties such as corrosion resistance and biocompatibility to further validate the clinical applicability of these materials.</p></div>2025-04-29T17:54:08ZDatasetinfo:eu-repo/semantics/publishedVersiondataset10.1371/journal.pone.0321724.t002https://figshare.com/articles/dataset/Cost_analysis_of_casting_techniques_/28896350CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/288963502025-04-29T17:54:08Z |
| spellingShingle | Cost analysis of casting techniques. Víctor Hugo Gonzalo Quispe Mamani (21213092) Biophysics Medicine Science Policy Environmental Sciences not elsewhere classified Biological Sciences not elsewhere classified Chemical Sciences not elsewhere classified uniform elemental distribution monte carlo simulation lost wax method explore additional properties enhancing restoration durability 625 &# 8201 303 &# 8201 207 &# 8201 102 &# 8201 alloy cast posts electric arc casting applied research approach al ), nickel refined microstructure compared eac posts showed eac posts exhibited mpa versus 136 lost wax technique cu &# 8323 000 iterations revealed higher operational costs 001 ), indicating mean compressive strength fe phases compared eac samples exhibiting mean strength compressive strength eac ), variable costs future research tc posts ni ), 05 ), eac technique xlink "> two groups trace elements torch casting statistically significant specific inclusion significant advantage selection process results reveal ray diffraction primarily due predominant element precious gold porous surface microstructural characteristics irregular topography income countries identified copper homogeneous stoichiometry higher proportion experimental design exclusion criteria ensure precision enriched zones divided equally dispersive spectroscopy dental professionals corrosion resistance copper matrix clinical applicability also present |
| status_str | publishedVersion |
| title | Cost analysis of casting techniques. |
| title_full | Cost analysis of casting techniques. |
| title_fullStr | Cost analysis of casting techniques. |
| title_full_unstemmed | Cost analysis of casting techniques. |
| title_short | Cost analysis of casting techniques. |
| title_sort | Cost analysis of casting techniques. |
| topic | Biophysics Medicine Science Policy Environmental Sciences not elsewhere classified Biological Sciences not elsewhere classified Chemical Sciences not elsewhere classified uniform elemental distribution monte carlo simulation lost wax method explore additional properties enhancing restoration durability 625 &# 8201 303 &# 8201 207 &# 8201 102 &# 8201 alloy cast posts electric arc casting applied research approach al ), nickel refined microstructure compared eac posts showed eac posts exhibited mpa versus 136 lost wax technique cu &# 8323 000 iterations revealed higher operational costs 001 ), indicating mean compressive strength fe phases compared eac samples exhibiting mean strength compressive strength eac ), variable costs future research tc posts ni ), 05 ), eac technique xlink "> two groups trace elements torch casting statistically significant specific inclusion significant advantage selection process results reveal ray diffraction primarily due predominant element precious gold porous surface microstructural characteristics irregular topography income countries identified copper homogeneous stoichiometry higher proportion experimental design exclusion criteria ensure precision enriched zones divided equally dispersive spectroscopy dental professionals corrosion resistance copper matrix clinical applicability also present |