title: In-vitro Evaluation of Transverse Strength of Repaired Heat Cured Denture Base Resins without Surface Treatment and with Chemical and Mechanical Surface Treatment.
abstract: BACKGROUND
  Denture repair involves joining two parts of a fractured denture with a denture repair material. Hence, a substantial repairing system for denture base fracture should be there to elude frequent fracture.
  
  
  METHODS
  Surface treatment of conventional heat cure denture base resin with different surface treatments (chemical ethyl acetate, and mechanical roughening with bur), with control group formed without surface treatment. Specimens were repaired with auto polymerizing acrylic resin using sprinkle on technique. The testing of the transverse strength of the repaired specimens was evaluated with three-point bending test on universal testing machine.
  
  
  RESULTS
  The study revealed that surface chemical treatment with ethyl acetate improved the transverse strength of repaired heat cure denture base when compared with mechanical and control group. A two-way analysis of variance revealed that there was statistically significant difference in mean strengths of the three groups.
  
  
  CONCLUSIONS
  Surface chemical treatment with ethyl acetate improved the transverse strength of the repaired heat cure denture base when compared with mechanical roughening with bur and group without surface treatment.
authors.affiliation: Professor, Department of Maxillofacial Prosthodontics and Implantology, Peoples Dental Academy, Bhopal, Madhya Pradesh, India.
authors.forename: Naveen S
authors.initials: NS
authors.lastname: Yadav
authors.affiliation: Post-graduate Student, Department of Maxillofacial Prosthodontics and Implantology, Peoples Dental Academy, Bhopal, Madhya Pradesh, India.
authors.forename: Shilpi
authors.initials: S
authors.lastname: Khare
authors.affiliation: Reader, Department of Maxillofacial Prosthodontics and Implantology, Peoples Dental Academy, Bhopal, Madhya Pradesh, India.
authors.forename: Sunil Kumar
authors.initials: SK
authors.lastname: Mishra
authors.affiliation: Associate Professor, Department of Dental Materials, King Khalid University, Abha, Kingdom of Saudi Arabia.
authors.forename: Rajesh
authors.initials: R
authors.lastname: Vyas
authors.affiliation: Reader, Department of Maxillofacial Prosthodontics and Implantology, Peoples Dental Academy, Bhopal, Madhya Pradesh, India.
authors.forename: Harsh
authors.initials: H
authors.lastname: Mahajan
authors.affiliation: Professor, Department of Maxillofacial Prosthodontics and Implantology, Peoples Dental Academy, Bhopal, Madhya Pradesh, India.
authors.forename: Rajkiran
authors.initials: R
authors.lastname: Chitumalla
keywords: Ethyl acetate; mechanical roughening; repaired resin; surface treatment; transverse strength