• Users Online: 475
  • Print this page
  • Email this page
ORIGINAL ARTICLE
Year : 2022  |  Volume : 19  |  Issue : 4  |  Page : 646-652

Evaluating the effect of lemongrass essential oil addition on some properties of heat cure acrylic soft-lining material


Department of Prosthodontics, College of Dentistry, University of Baghdad, Baghdad, Iraq

Correspondence Address:
Huda Jaafar Naser
Department of Prosthodontics, College of Dentistry, University of Baghdad, Baghdad
Iraq
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/MJBL.MJBL_188_22

Rights and Permissions

Background: Denture liners’ viscoelasticity absorbs shocks and relieves tissue pressure. Soft liners must be replaced every 6–12 months because oral conditions destroy elastomers. By adding chemicals to soft liners, researchers have created a new class of flexible, oral-friendly materials. This lowers denture and mucosa pressure. Objectives: The aim of the study is to discover if the best two concentrations of lemongrass essential oil (LGEO) added to heat-cured soft denture liner improves the material’s hardness, the strength of the peel bond, and surface roughness. Materials and Methods: In a pilot study, 2.5 vol.% and 5 vol.% LGEO improved the heat-cured soft-liner material’s Shore A hardness and surface roughness. The main study categorized 90 specimens into three groups (Shore A hardness, peel bond strength, and surface roughness). Each of the groups has three subgroups (control, 2.5 vol.% of LGEO additive, and 5 vol.% of LGEO additive). One-way analysis of variance, Dunnett’s T3 post hoc, Tukey’s honestly significant difference, and Fisher’s exact test were used for data analysis, which was significant at P < 0.05. Results: After adding 2.5 vol.% and 5 vol.% of LGEO additives (experimental subgroups), Shore hardness, peel bond strength, and surface roughness of the two experimental subgroups decreased significantly from the control subgroup at P < 0.05, except for 2.5 vol.% of the LGEO additive subgroup, which did not differ significantly at P > 0.05. When failure mode was assessed, all subgroups varied substantially. The 2.5 vol.% of LGEO addition specimens showed adhesive and cohesive failure with some mixed type, whereas 5 vol.% showed predominantly cohesive failure. Conclusions: LGEO enhances the hardness and surface roughness of the soft-lining material, making it more resilient and smoother. This leads to a greater cushioning effect and reduced damage to the oral tissues while decreasing the liner’s peel bond strength to an acceptable level. 5 vol.% is the best percentage that improves liner properties.


[FULL TEXT] [PDF]*
Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)
 

 Article Access Statistics
    Viewed130    
    Printed8    
    Emailed0    
    PDF Downloaded17    
    Comments [Add]    

Recommend this journal