{"title":"以 3,9-双乙烯基-2,4,8,10-四氧杂螺 [5,5] 十一烷为交联剂共轭的牙科聚（甲基丙烯酸甲酯）树脂的结构、表面形貌和玻璃化转变温度：体外研究。","authors":"Chandramohan Ravivarman, Ranganathan Ajay, Loganathan Saatwika, Sivarasu Sivasenthil, Thangavelu Saranya, Deepa Gurunathan","doi":"10.5005/jp-journals-10024-3665","DOIUrl":null,"url":null,"abstract":"<p><strong>Aim and objectives: </strong>To characterize and analyze the structural presentation of a new denture base copolymer with a spiro-acetal cross-linker at 10 and 20 wt.% concentrations by nuclear magnetic resonance (NMR) and field emission scanning electron microscopy-energy-dispersive X-ray (FESEM-EDX) spectroscopies. Also, to evaluate the glass transition temperature (T<sub>G</sub>) of the new copolymer.</p><p><strong>Materials and methods: </strong>The investigational groups G10 and G20 were heat-cured with the new spiro-acetal cross-linker at the above-mentioned concentrations, respectively. The control group G0 was heat-cured without the new cross-linker. Nuclear magnetic resonance and EDX spectroscopies determined the copolymerization along with elemental composition. The surface characteristics were discerned by FESEM. Differential scanning calorimetry was employed to evaluate the T<sub>G</sub> of the resultant copolymer. Appropriate statistical operations were performed to compare the mean T<sub>G</sub> of the groups.</p><p><strong>Results: </strong>The new copolymer's structure with the spiro-acetal cross-linker was configured with protons, carbons, aluminum, zirconium, yttrium, and silicon atoms. The T<sub>G</sub> of the resultant copolymer was high when compared with the G0. The 20 wt.% spiro-acetal cross-linker in the copolymer exhibited the highest T<sub>G</sub>.</p><p><strong>Conclusion: </strong>The spiro-acetal cross-linking comonomer incorporated in the heat-cure denture polymer produced a new denture base copolymer with elevated T<sub>G</sub>. The resultant configuration of the new copolymer was characterized, structurally presented, and confirmed.</p><p><strong>Clinical significance: </strong>The new copolymer might exhibit augmented strength due to the copolymerized spiro-acetal cross-linker. Moreover, the smooth and regular surface of the copolymer would have minimum or negligible microbial adhesion due to the hydrophobicity of the spiro-acetal comonomer incorporated in the denture base composition. How to cite this article: Ravivarman C, Ajay R, Saatwika L, et al. Structure, Surface Topography, and Glass Transition Temperature of Dental Poly (Methyl Methacrylate) Resin Conjugated with 3,9-bisethenyl-2,4,8,10-tetraoxaspiro [5,5] Undecane as Cross-linker: An In Vitro Research. J Contemp Dent Pract 2024;25(5):486-493.</p>","PeriodicalId":35792,"journal":{"name":"Journal of Contemporary Dental Practice","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Structure, Surface Topography, and Glass Transition Temperature of Dental Poly (Methyl Methacrylate) Resin Conjugated with 3,9-bisethenyl-2,4,8,10-tetraoxaspiro [5,5] Undecane as Cross-linker: An <i>In Vitro</i> Research.\",\"authors\":\"Chandramohan Ravivarman, Ranganathan Ajay, Loganathan Saatwika, Sivarasu Sivasenthil, Thangavelu Saranya, Deepa Gurunathan\",\"doi\":\"10.5005/jp-journals-10024-3665\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Aim and objectives: </strong>To characterize and analyze the structural presentation of a new denture base copolymer with a spiro-acetal cross-linker at 10 and 20 wt.% concentrations by nuclear magnetic resonance (NMR) and field emission scanning electron microscopy-energy-dispersive X-ray (FESEM-EDX) spectroscopies. Also, to evaluate the glass transition temperature (T<sub>G</sub>) of the new copolymer.</p><p><strong>Materials and methods: </strong>The investigational groups G10 and G20 were heat-cured with the new spiro-acetal cross-linker at the above-mentioned concentrations, respectively. The control group G0 was heat-cured without the new cross-linker. Nuclear magnetic resonance and EDX spectroscopies determined the copolymerization along with elemental composition. The surface characteristics were discerned by FESEM. Differential scanning calorimetry was employed to evaluate the T<sub>G</sub> of the resultant copolymer. Appropriate statistical operations were performed to compare the mean T<sub>G</sub> of the groups.</p><p><strong>Results: </strong>The new copolymer's structure with the spiro-acetal cross-linker was configured with protons, carbons, aluminum, zirconium, yttrium, and silicon atoms. The T<sub>G</sub> of the resultant copolymer was high when compared with the G0. The 20 wt.% spiro-acetal cross-linker in the copolymer exhibited the highest T<sub>G</sub>.</p><p><strong>Conclusion: </strong>The spiro-acetal cross-linking comonomer incorporated in the heat-cure denture polymer produced a new denture base copolymer with elevated T<sub>G</sub>. The resultant configuration of the new copolymer was characterized, structurally presented, and confirmed.</p><p><strong>Clinical significance: </strong>The new copolymer might exhibit augmented strength due to the copolymerized spiro-acetal cross-linker. Moreover, the smooth and regular surface of the copolymer would have minimum or negligible microbial adhesion due to the hydrophobicity of the spiro-acetal comonomer incorporated in the denture base composition. How to cite this article: Ravivarman C, Ajay R, Saatwika L, et al. Structure, Surface Topography, and Glass Transition Temperature of Dental Poly (Methyl Methacrylate) Resin Conjugated with 3,9-bisethenyl-2,4,8,10-tetraoxaspiro [5,5] Undecane as Cross-linker: An In Vitro Research. J Contemp Dent Pract 2024;25(5):486-493.</p>\",\"PeriodicalId\":35792,\"journal\":{\"name\":\"Journal of Contemporary Dental Practice\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-05-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Contemporary Dental Practice\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.5005/jp-journals-10024-3665\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"Dentistry\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Contemporary Dental Practice","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5005/jp-journals-10024-3665","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Dentistry","Score":null,"Total":0}
引用次数: 0
摘要
目的和目标：通过核磁共振（NMR）和场发射扫描电子显微镜-能量色散 X 射线（FESEM-EDX）光谱，表征和分析新型义齿基底共聚物与螺醛类交联剂在 10 和 20 wt.% 浓度下的结构表现。此外，还评估了新型共聚物的玻璃化转变温度（TG）：研究组 G10 和 G20 分别用上述浓度的新型螺缩醛交联剂进行热固化。对照组 G0 在没有使用新型交联剂的情况下进行热固化。核磁共振和乙二胺四乙酸氙光谱测定了共聚情况和元素组成。通过 FESEM 分析了表面特征。采用差示扫描量热法评估了所得共聚物的热重。通过适当的统计运算来比较各组的平均 TG：结果：带有螺-缩醛交联剂的新型共聚物结构中配置了质子、碳、铝、锆、钇和硅原子。与 G0 相比，所得共聚物的 TG 较高。共聚物中 20 wt.% 的螺-缩醛交联剂的 TG 值最高：结论：在热固化义齿聚合物中加入螺缩醛交联共聚单体可产生一种新的义齿基底共聚物，其 TG 值较高。临床意义：临床意义：由于共聚了螺-缩醛交联剂，这种新型共聚物可能具有更高的强度。此外，由于义齿基托成分中螺-缩醛共聚单体的疏水性，共聚物光滑而规则的表面可将微生物的粘附性降到最低或可忽略不计。本文引用方式Ravivarman C, Ajay R, Saatwika L, et al. Structure, Surface Topography, and Glass Transition Temperature of Dental Poly (Methyl Methacrylate) Resin Conjugated with 3,9-bisethenyl-2,4,8,10-tetraoxaspiro [5,5] Undecane as Cross-linker：体外研究。J Contemp Dent Pract 2024;25(5):486-493.
Structure, Surface Topography, and Glass Transition Temperature of Dental Poly (Methyl Methacrylate) Resin Conjugated with 3,9-bisethenyl-2,4,8,10-tetraoxaspiro [5,5] Undecane as Cross-linker: An In Vitro Research.
Aim and objectives: To characterize and analyze the structural presentation of a new denture base copolymer with a spiro-acetal cross-linker at 10 and 20 wt.% concentrations by nuclear magnetic resonance (NMR) and field emission scanning electron microscopy-energy-dispersive X-ray (FESEM-EDX) spectroscopies. Also, to evaluate the glass transition temperature (TG) of the new copolymer.
Materials and methods: The investigational groups G10 and G20 were heat-cured with the new spiro-acetal cross-linker at the above-mentioned concentrations, respectively. The control group G0 was heat-cured without the new cross-linker. Nuclear magnetic resonance and EDX spectroscopies determined the copolymerization along with elemental composition. The surface characteristics were discerned by FESEM. Differential scanning calorimetry was employed to evaluate the TG of the resultant copolymer. Appropriate statistical operations were performed to compare the mean TG of the groups.
Results: The new copolymer's structure with the spiro-acetal cross-linker was configured with protons, carbons, aluminum, zirconium, yttrium, and silicon atoms. The TG of the resultant copolymer was high when compared with the G0. The 20 wt.% spiro-acetal cross-linker in the copolymer exhibited the highest TG.
Conclusion: The spiro-acetal cross-linking comonomer incorporated in the heat-cure denture polymer produced a new denture base copolymer with elevated TG. The resultant configuration of the new copolymer was characterized, structurally presented, and confirmed.
Clinical significance: The new copolymer might exhibit augmented strength due to the copolymerized spiro-acetal cross-linker. Moreover, the smooth and regular surface of the copolymer would have minimum or negligible microbial adhesion due to the hydrophobicity of the spiro-acetal comonomer incorporated in the denture base composition. How to cite this article: Ravivarman C, Ajay R, Saatwika L, et al. Structure, Surface Topography, and Glass Transition Temperature of Dental Poly (Methyl Methacrylate) Resin Conjugated with 3,9-bisethenyl-2,4,8,10-tetraoxaspiro [5,5] Undecane as Cross-linker: An In Vitro Research. J Contemp Dent Pract 2024;25(5):486-493.
期刊介绍：
The Journal of Contemporary Dental Practice (JCDP), is a peer-reviewed, open access MEDLINE indexed journal. The journal’s full text is available online at http://www.thejcdp.com. The journal allows free access (open access) to its contents. Articles with clinical relevance will be given preference for publication. The Journal publishes original research papers, review articles, rare and novel case reports, and clinical techniques. Manuscripts are invited from all specialties of dentistry i.e., conservative dentistry and endodontics, dentofacial orthopedics and orthodontics, oral medicine and radiology, oral pathology, oral surgery, orodental diseases, pediatric dentistry, implantology, periodontics, clinical aspects of public health dentistry, and prosthodontics.
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