title: Cleaning and retreatment protocol for a debonded ceramic restoration.
abstract: OBJECTIVE
  The aim of this article is to propose a resin cement cleaning protocol for use before recementing a debonded restoration.
  
  
  METHODS
  Ceramic samples were fabricated from IPS d.sign® and IPS e.max Press® and were treated with hydrofluoric acid etching (HF), or HF+silane (S), or HF+S+adhesive or HF+S+A+resin cement. All samples were placed in a furnace at 650º for one minute in order to attempt to pyrolyze the composite. Each step was examined under scanning electron microscopy (SEM).
  
  
  RESULTS
  When the cleaning protocol had been performed, it left a clean and retentive surface.
  
  
  CONCLUSIONS
  If the restoration is placed in a furnace at 650º for one minute, the composite cement will burn or pyrolyze and disappear, allowing conventional retreatment of the ceramic before rebonding. Key words:Ceramic, debond, surface treatment.
authors: DDS, MSc, PhD, Associate Lecturer, Department of Dental medicine, Prosthodontic and Occlusion Teaching Unit, University of Valencia, University of Valencia General Studies (UVGS) Spain.
authors: Juan-Luis
authors: JL
authors: Román-Rodríguez
authors: DDS, Lecturer in Prosthodontics. Prosthodontic and Occlusion Teaching Unit, UVGS, Spain.
authors: Jorge
authors: J
authors: Alonso-Pérez-Barquero
authors: CDT, Dental Technician, Dental Design Laboratory, Barcelona, Spain.
authors: August
authors: A
authors: Bruguera-Álvarez
authors: DDS, MSc, PhD, Associate Lecturer, Department of Dental medicine, Prosthodontic and Occlusion Teaching Unit, University of Valencia, University of Valencia General Studies (UVGS) Spain.
authors: Rubén
authors: R
authors: Agustín-Panadero
authors: DDS, PhD, MD, Senior Lecturer, Department of Dental medicine, Prosthodontic and Occlusion Teaching Unit, UVGS, Spain.
authors: Antonio
authors: A
authors: Fons-Font