Effect of incorporation of nanoclay on the properties of heat cure denture base material: An In vitro study
Purpose: The aim of the study was to evaluate the effect of incorporation of organically modified nanoclay in 1%, 3%, and 5% by weight on the flexural strength, surface hardness, and linear polymerization shrinkage of heat cure denture base material. Materials and Methods: One hundred and twenty spe...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wolters Kluwer Medknow Publications
2019-01-01
|
| Series: | Contemporary Clinical Dentistry |
| Subjects: | |
| Online Access: | http://www.contempclindent.org/article.asp?issn=0976-237X;year=2019;volume=10;issue=4;spage=658;epage=663;aulast=Joseph |
| _version_ | 1818886168667750400 |
|---|---|
| author | Angel Mary Joseph Suja Joseph Nicholas Mathew Ashwin Thomas Koshy Namratha L Jayalakshmi V Mathew |
| author_facet | Angel Mary Joseph Suja Joseph Nicholas Mathew Ashwin Thomas Koshy Namratha L Jayalakshmi V Mathew |
| author_sort | Angel Mary Joseph |
| collection | DOAJ |
| description | Purpose: The aim of the study was to evaluate the effect of incorporation of organically modified nanoclay in 1%, 3%, and 5% by weight on the flexural strength, surface hardness, and linear polymerization shrinkage of heat cure denture base material. Materials and Methods: One hundred and twenty specimens of heat-polymerized acrylic resin were fabricated. The specimens were divided into four groups (n = 10) coded I to IV. Group I was the control group (unmodified acrylic resin specimens). The specimens of the remaining three groups were reinforced with nanoclay (organically modified montmorillonite) nanoparticles to achieve loadings of 1%, 3%, and 5% by weight. The resulting nanocomposites were subjected to mechanical testing and were characterized using X-ray diffraction, scanning electron microscope, and transmission electron microscope. Results: The statistical analysis showed that there was no significant increase in flexural strength within and between the groups. The most significant increase in surface hardness was observed between Group I (control) and Group II (1% nanoclay). Linear polymerization shrinkage of the specimens showed a significant decrease in the control and all the experimental groups. Conclusion: Addition of 1 wt% nanoclay to polymethyl methacrylate heat cure denture base material could enhance the surface hardness and reduce the linear polymerization shrinkage of the resin. However, there was no significant increase in flexural strength of the resulting nanocomposite. |
| first_indexed | 2024-12-19T16:17:03Z |
| format | Article |
| id | doaj.art-de3670c294a145b884f4a59eedf6a370 |
| institution | Directory Open Access Journal |
| issn | 0976-237X 0976-2361 |
| language | English |
| last_indexed | 2024-12-19T16:17:03Z |
| publishDate | 2019-01-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Contemporary Clinical Dentistry |
| spelling | doaj.art-de3670c294a145b884f4a59eedf6a3702022-12-21T20:14:35ZengWolters Kluwer Medknow PublicationsContemporary Clinical Dentistry0976-237X0976-23612019-01-0110465866310.4103/ccd.ccd_737_17Effect of incorporation of nanoclay on the properties of heat cure denture base material: An In vitro studyAngel Mary JosephSuja JosephNicholas MathewAshwin Thomas KoshyNamratha L JayalakshmiV MathewPurpose: The aim of the study was to evaluate the effect of incorporation of organically modified nanoclay in 1%, 3%, and 5% by weight on the flexural strength, surface hardness, and linear polymerization shrinkage of heat cure denture base material. Materials and Methods: One hundred and twenty specimens of heat-polymerized acrylic resin were fabricated. The specimens were divided into four groups (n = 10) coded I to IV. Group I was the control group (unmodified acrylic resin specimens). The specimens of the remaining three groups were reinforced with nanoclay (organically modified montmorillonite) nanoparticles to achieve loadings of 1%, 3%, and 5% by weight. The resulting nanocomposites were subjected to mechanical testing and were characterized using X-ray diffraction, scanning electron microscope, and transmission electron microscope. Results: The statistical analysis showed that there was no significant increase in flexural strength within and between the groups. The most significant increase in surface hardness was observed between Group I (control) and Group II (1% nanoclay). Linear polymerization shrinkage of the specimens showed a significant decrease in the control and all the experimental groups. Conclusion: Addition of 1 wt% nanoclay to polymethyl methacrylate heat cure denture base material could enhance the surface hardness and reduce the linear polymerization shrinkage of the resin. However, there was no significant increase in flexural strength of the resulting nanocomposite.http://www.contempclindent.org/article.asp?issn=0976-237X;year=2019;volume=10;issue=4;spage=658;epage=663;aulast=Josephlinear polymerization shrinkagenanoclaynanocompositepolymethyl methacrylatesurface hardness |
| spellingShingle | Angel Mary Joseph Suja Joseph Nicholas Mathew Ashwin Thomas Koshy Namratha L Jayalakshmi V Mathew Effect of incorporation of nanoclay on the properties of heat cure denture base material: An In vitro study Contemporary Clinical Dentistry linear polymerization shrinkage nanoclay nanocomposite polymethyl methacrylate surface hardness |
| title | Effect of incorporation of nanoclay on the properties of heat cure denture base material: An In vitro study |
| title_full | Effect of incorporation of nanoclay on the properties of heat cure denture base material: An In vitro study |
| title_fullStr | Effect of incorporation of nanoclay on the properties of heat cure denture base material: An In vitro study |
| title_full_unstemmed | Effect of incorporation of nanoclay on the properties of heat cure denture base material: An In vitro study |
| title_short | Effect of incorporation of nanoclay on the properties of heat cure denture base material: An In vitro study |
| title_sort | effect of incorporation of nanoclay on the properties of heat cure denture base material an in vitro study |
| topic | linear polymerization shrinkage nanoclay nanocomposite polymethyl methacrylate surface hardness |
| url | http://www.contempclindent.org/article.asp?issn=0976-237X;year=2019;volume=10;issue=4;spage=658;epage=663;aulast=Joseph |
| work_keys_str_mv | AT angelmaryjoseph effectofincorporationofnanoclayonthepropertiesofheatcuredenturebasematerialaninvitrostudy AT sujajoseph effectofincorporationofnanoclayonthepropertiesofheatcuredenturebasematerialaninvitrostudy AT nicholasmathew effectofincorporationofnanoclayonthepropertiesofheatcuredenturebasematerialaninvitrostudy AT ashwinthomaskoshy effectofincorporationofnanoclayonthepropertiesofheatcuredenturebasematerialaninvitrostudy AT namrathaljayalakshmi effectofincorporationofnanoclayonthepropertiesofheatcuredenturebasematerialaninvitrostudy AT vmathew effectofincorporationofnanoclayonthepropertiesofheatcuredenturebasematerialaninvitrostudy |