Indian Journal of Public Health Research & Development

Neha Chugh ¹, Pradeep Sheriger ², Dhanasekar Balakrishnan ³, Aparna Ichalangod Narayan ⁴

Affiliations
1 Post Graduate Student, Department of Prosthodontics and Crown and Bridge, Manipal College of Dental sciences, Manipal, IN
2 Additional Professor, Department of Prosthodontics and Crown and Bridge, Manipal College of Dental sciences, Manipal, IN
3 Professor and Head, Department of Prosthodontics and Crown and Bridge, Manipal College of Dental sciences, Manipal, IN
4 Professor, Department of Prosthodontics and Crown and Bridge, Manipal College of Dental sciences, Manipal, IN

Abstract

Aim: To evaluate and compare the flexural properties of three commercially available brands of PMMA heat cure denture base resins after water immersion over a period of 3 months.

Method and Material: Commercially available heat cure denture base resins (DPI, Triplex, and Trevalon) were used in the study. An aluminum die was fabricated according to ISO 1567. Each of the tested materials was manipulated according to manufacturer’s instructions. Total of 60 samples were made (n=10). With 3 control (dry) groups and three experimental (water immersed) groups. The samples were subjected to INSTRON universal testing machine.

Statistical Analysis Used: Student ‘t’ test, ANOVA and Post hoc tukey’s test.

Results: Student ‘t’ test indicated that there is significant difference in the flexural properties of the denture base resins after long term water immersion with p<0.05 for all the three groups. ANOVA indicated that there was no significant difference among the three groups/brands.

Conclusions: The flexural properties of heat cure denture base resins was affected by long term water immersion. The ultimate flexural strength decreased, flexural strength at proportional limit remained same and modulus of elasticity decreased. Thus after long term water immersion, the denture base material becomes weaker and stiffer.

Keywords

Denture Base Resins, Flexural Strength, Tensile Strength, Elastic Modulus, Water Sorption, Water Immersion.

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Neha Chugh ¹, Pradeep Sheriger ², Aparna Ichalangod Narayan ³, Dhanasekar Balakrishnan ⁴

Affiliations
1 Post Graduate Student, Department of Prosthodontics and Crown and Bridge, Manipal College of Dental sciences, Manipal, IN
2 Additional Professor, Department of Prosthodontics and Crown and Bridge, Manipal College of Dental sciences, Manipal, IN
3 Professor, Department of Prosthodontics and Crown and Bridge, Manipal College of Dental sciences, Manipal, IN
4 Professor and Head, Department of Prosthodontics and Crown and Bridge, Manipal College of Dental sciences, Manipal, IN

Abstract

Background: Tooth loss due to caries and various other consequences, can cause simple loss of function to long term deleterious effects on the remaining residual bone, oral proprioception, temporomandibular joints and facial appearance. Case Description: A 33 year old female patient with Kennedy’s class I edentulism in both the arches with just three teeth remaining in maxilla has been treated with attachment retained maxillary palateless overdenture and mandibular removable partial denture. The maxillary teeth 11 21 23 were endodontically treated and a short coping with rhein 83 attachment were cemented and a maxillary overdenture over this was fabricated. This was opposed by mandibular partial denture. This case report attempts to prevent the remaining teeth in the oral cavity and gives a cost effective treatment option to the patient considering her financial status. Conclusion: This case report emphasizes the use of preventive prosthodontics helping enhance the quality of life of patient

Keywords

Overdenture, Tooth-supported overdenture, Attachments, combination syndrome, preventive prosthodontics.

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