Clarisse Maria Luiz SILVA, Taynara Franciele da Silva SOUZA, Agatha Christie Martins RAIMUNDO, Antônio TORRES NETO, Manassés Tercio Vieira GRANGEIRO, Viviane Maria Gonçalves de FIGUEIREDO
{"title":"陶瓷修复材料在牙髓修复体配制中的寿命:表面粗糙度和机械强度的体外研究","authors":"Clarisse Maria Luiz SILVA, Taynara Franciele da Silva SOUZA, Agatha Christie Martins RAIMUNDO, Antônio TORRES NETO, Manassés Tercio Vieira GRANGEIRO, Viviane Maria Gonçalves de FIGUEIREDO","doi":"10.1590/1981-86372023005020230003","DOIUrl":null,"url":null,"abstract":"ABSTRACT Objectives: The objective was to evaluate the longevity of ceramic restorative materials in the manufacture of endocrown restorations, through an in vitro study on surface roughness and mechanical strength. Methods: Three restorative materials were evaluated and assigned to experimental groups (n=10 disc specimens): Leucite Reinforced Ceramic, Lithium Disilicate and Nanoceramic Resin. These restorative materials were evaluated for surface before and after aging (n=02 specimens) under a stereomicroscope. The specimens were submitted to the average surface roughness test (Ra) (n=10) in a contact roughness meter before and after aging. As well as the biaxial flexural strength test (n=10), after aging, up to a test speed of 0.5 mm/min. Aging was carried out in a thermocycler, with 5,000 cycles with baths of 5 °C ± 1 ° and 55 °C ± 1 °. Fragments after fracture were observed under a stereomicroscope. The data obtained were tabulated and analyzed using the Minitab statistical program. Results: The surfaces of the specimens do not show changes between the restorative materials and also in relation to aging. For the roughness data, the restorative material factors (p=0.867) and aging (p=0.321) were not statistically significant. The DIS group presented the highest values of fracture resistance (p=0.000), in relation to the LEU and REN groups, which were statistically similar. The same statistical pattern was identified for post-fracture fragment data (p=0.030). Conclusions: The aging factors and restorative material do not interfere with the surface roughness performance. However, the mechanical performance and number of fragments after fracture is affected by the restorative material.","PeriodicalId":30069,"journal":{"name":"RGO Revista Gaucha de Odontologia","volume":"40 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Longevity of ceramic restoring materials in the confection of endocrowns restorations: an in vitro study on surface roughness and mechanical strength\",\"authors\":\"Clarisse Maria Luiz SILVA, Taynara Franciele da Silva SOUZA, Agatha Christie Martins RAIMUNDO, Antônio TORRES NETO, Manassés Tercio Vieira GRANGEIRO, Viviane Maria Gonçalves de FIGUEIREDO\",\"doi\":\"10.1590/1981-86372023005020230003\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"ABSTRACT Objectives: The objective was to evaluate the longevity of ceramic restorative materials in the manufacture of endocrown restorations, through an in vitro study on surface roughness and mechanical strength. Methods: Three restorative materials were evaluated and assigned to experimental groups (n=10 disc specimens): Leucite Reinforced Ceramic, Lithium Disilicate and Nanoceramic Resin. These restorative materials were evaluated for surface before and after aging (n=02 specimens) under a stereomicroscope. The specimens were submitted to the average surface roughness test (Ra) (n=10) in a contact roughness meter before and after aging. As well as the biaxial flexural strength test (n=10), after aging, up to a test speed of 0.5 mm/min. Aging was carried out in a thermocycler, with 5,000 cycles with baths of 5 °C ± 1 ° and 55 °C ± 1 °. Fragments after fracture were observed under a stereomicroscope. The data obtained were tabulated and analyzed using the Minitab statistical program. Results: The surfaces of the specimens do not show changes between the restorative materials and also in relation to aging. For the roughness data, the restorative material factors (p=0.867) and aging (p=0.321) were not statistically significant. The DIS group presented the highest values of fracture resistance (p=0.000), in relation to the LEU and REN groups, which were statistically similar. The same statistical pattern was identified for post-fracture fragment data (p=0.030). Conclusions: The aging factors and restorative material do not interfere with the surface roughness performance. However, the mechanical performance and number of fragments after fracture is affected by the restorative material.\",\"PeriodicalId\":30069,\"journal\":{\"name\":\"RGO Revista Gaucha de Odontologia\",\"volume\":\"40 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"RGO Revista Gaucha de Odontologia\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1590/1981-86372023005020230003\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"RGO Revista Gaucha de Odontologia","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1590/1981-86372023005020230003","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Longevity of ceramic restoring materials in the confection of endocrowns restorations: an in vitro study on surface roughness and mechanical strength
ABSTRACT Objectives: The objective was to evaluate the longevity of ceramic restorative materials in the manufacture of endocrown restorations, through an in vitro study on surface roughness and mechanical strength. Methods: Three restorative materials were evaluated and assigned to experimental groups (n=10 disc specimens): Leucite Reinforced Ceramic, Lithium Disilicate and Nanoceramic Resin. These restorative materials were evaluated for surface before and after aging (n=02 specimens) under a stereomicroscope. The specimens were submitted to the average surface roughness test (Ra) (n=10) in a contact roughness meter before and after aging. As well as the biaxial flexural strength test (n=10), after aging, up to a test speed of 0.5 mm/min. Aging was carried out in a thermocycler, with 5,000 cycles with baths of 5 °C ± 1 ° and 55 °C ± 1 °. Fragments after fracture were observed under a stereomicroscope. The data obtained were tabulated and analyzed using the Minitab statistical program. Results: The surfaces of the specimens do not show changes between the restorative materials and also in relation to aging. For the roughness data, the restorative material factors (p=0.867) and aging (p=0.321) were not statistically significant. The DIS group presented the highest values of fracture resistance (p=0.000), in relation to the LEU and REN groups, which were statistically similar. The same statistical pattern was identified for post-fracture fragment data (p=0.030). Conclusions: The aging factors and restorative material do not interfere with the surface roughness performance. However, the mechanical performance and number of fragments after fracture is affected by the restorative material.