title: Variations in Flexural Strength of Heat-polymerized Acrylic Resin after the Usage of Denture Cleansers.
abstract: OBJECTIVE
  The objective of this study was to evaluate and compare changes in the flexural strength of heat-cured denture base resins when treated using denture cleansers.
  
  
  METHODS
  A total of 40 specimens with dimension 65 mm length, 10 mm width, and 3 mm thickness were prepared as per ISO 1567 specification. A total of 10 specimens were immersed in distilled water to be used as control. Of the remaining 30 samples, 10 were treated with Clinsodent, 10 with VI-Clean, and 10 with Clanden denture cleansers. Specimens in each group were subjected to three-point flexural load in universal testing machine at a cross-head speed of 5 mm/min. The peak load (N) was recorded and flexural strength was calculated. The findings were analyzed using Kruskal-Wallis analysis of variance and Mann-Whitney test.
  
  
  RESULTS
  Heat-cured denture base resin selected for this study showed significant difference in flexural strength after immersion in denture cleansers Clinsodent, VI-Clean, and Clanden solutions, when compared with the control group.
  
  
  CONCLUSIONS
  Findings of this study showed that denture cleansers altered the flexural strength of heat polymerized acrylic resins that endured soaking cycles which simulated 180 days of use. Hence, denture cleansers should be used with caution, once a day after brushing the dentures. It is advisable for patients to follow the manufacturer's instructions.
authors.affiliation: Assistant Professor, Department of Prosthodontics, Yenepoya Dental College Yenepoya University, Mangaluru, Karnataka, India, Phone: +917676708707, e-mail: drmallis@gmail.com.
authors.forename: Mallikarjuna
authors.initials: M
authors.lastname: Ragher
authors.affiliation: Department of Prosthodontics, College of Dental Sciences Davanagere, Karnataka, India.
authors.forename: G
authors.initials: G
authors.lastname: Vinayakumar
authors.affiliation: Department of Prosthodontics, Yogitha Dental College and Hospital, Ratnagiri, Maharashtra, India.
authors.forename: Sanketsopan
authors.initials: S
authors.lastname: Patil
authors.affiliation: Department of Prosthodontics, SMS Medical College and Hospital, Jaipur, Rajasthan, India.
authors.forename: Aishwarya
authors.initials: A
authors.lastname: Chatterjee
authors.affiliation: Department of Prosthodontics, Yenepoya Dental College Yenepoya University, Mangaluru, Karnataka, India.
authors.forename: D M
authors.initials: DM
authors.lastname: Mallikarjuna
authors.affiliation: Department of Prosthodontics, Yenepoya Dental College Yenepoya University, Mangaluru, Karnataka, India.
authors.forename: Savita
authors.initials: S
authors.lastname: Dandekeri
authors.affiliation: Department of Prosthodontics, Yenepoya Dental College Yenepoya University, Mangaluru, Karnataka, India.
authors.forename: V
authors.initials: V
authors.lastname: Swetha
authors.affiliation: Department of Prosthodontics, AJ Institute of Dental Sciences Mangaluru, Karnataka, India.
authors.forename: M R
authors.initials: MR
authors.lastname: Pradeep
mesh_terms: D000180:Acrylic Resins; D003820:Denture Cleansers / Q000494:pharmacology*; D006358:Hot Temperature; D007101:Immersion; D058105:Polymerization; D013223:Statistics as Topic
chemical_list: D000180:Acrylic Resins; D003820:Denture Cleansers
keywords: Denture base resins; Denture cleanser; Flexural strength.