title: Osteo-odonto-keratoprosthesis (OOKP) and the testing of three different adhesives for bonding bovine teeth with optical poly-(methyl methacrylate) (PMMA) cylinder.
abstract: OBJECTIVE
  Preparation of the lamina during osteo-odonto-keratoprosthesis (OOKP) design is complex, and its longevity and watertightness important. To date, only acrylic bone cements have been used for bonding the optical cylinder to the tooth dentine. Our aim was to evaluate different dental adhesives for OOKP preparation.
  
  
  METHODS
  Specimens of bovine teeth were produced by preparing 1.5-mm thick dentine slices with holes having a diameter of 3.5 mm. Each group (n=10 per group) was luted with either classic poly-(methyl methacrylate) (PMMA) bone cement, universal resin cement or glass ionomer cement. All specimens underwent force measurement using a uniaxial traction machine.
  
  
  RESULTS
  The highest mean force required to break the bond was measured for PMMA bone cement (128.2 N) followed by universal resin cement (127.9 N), with no statistically significant difference. Glass ionomer cement showed significantly lower force resistance (78.1 N).
  
  
  CONCLUSIONS
  Excellent bonding strength combined with easy application was found for universal resin cement, and thus, it is a potential alternative to acrylic bone cement in OOKP preparation.
authors.affiliation: Department of Ophthalmology, University Hospital Basel, University Basel, Basel, Switzerland.
authors.forename: K
authors.initials: K
authors.lastname: Weisshuhn
authors.affiliation: Department of Maxillofacial Surgery, University Hospital Basel, Basel, Switzerland.
authors.forename: I
authors.initials: I
authors.lastname: Berg
authors.affiliation: Practice of Dentistry and Reconstruction, Basel, Switzerland.
authors.forename: D
authors.initials: D
authors.lastname: Tinner
authors.affiliation: Department of Maxillofacial Surgery, University Hospital Basel, Basel, Switzerland.
authors.forename: C
authors.initials: C
authors.lastname: Kunz
authors.affiliation: Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland.
authors.forename: M M
authors.initials: MM
authors.lastname: Bornstein
authors.affiliation: Department of Dentistry, University Basel, Basel, Switzerland.
authors.forename: M
authors.initials: M
authors.lastname: Steineck
authors.affiliation: Department of Ophthalmology, Ortenau Clinic, Offenburg, Germany.
authors.forename: K
authors.initials: K
authors.lastname: Hille
authors.affiliation: Department of Ophthalmology, University Hospital Basel, University Basel, Basel, Switzerland.
authors.forename: D
authors.initials: D
authors.lastname: Goldblum
mesh_terms: D000818:Animals; D001843:Bone Cements / Q000737:chemistry*; D002417:Cattle; D016039:Corneal Transplantation; D005899:Glass Ionomer Cements / Q000737:chemistry*; D007180:Incisor; D008422:Materials Testing; D019904:Polymethyl Methacrylate; D019736:Prostheses and Implants; D019279:Resin Cements / Q000737:chemistry*
chemical_list: D001843:Bone Cements; D005899:Glass Ionomer Cements; D019279:Resin Cements; D019904:Polymethyl Methacrylate
keywords: Cornea; Ocular surface; Optics and Refraction; Prosthesis