title: [Comparison of leakage at the implant to abutment connection in several implants types using a gas flow method].
abstract: BACKGROUND
  The aim of this study was to compare the leakage at the implant to abutment connection in several implants, using a new gas diffusion method.
  
  
  METHODS
  Sixty-eight implants of 13 different types were used. Nitrogen leaking was measured after screwing the connections to the torque levels recommended by the manufacturers.
  
  
  RESULTS
  A significant tightness difference was observed between the different implant types. This difference cannot be explained by the various connection designs (flat, conical) or by the various torques recommended by the manufacturers.
  
  
  CONCLUSIONS
  The authors suggest that the tightness difference between the various implant systems could be mainly associated with quality and precision of machining.
authors.affiliation: Service d'odontologie, CHRU de Montpellier, 549, avenue du Pr-JL-Viala, 34295 Montpellier cedex 5, France; EA4203, UFR d'odontologie, 545, avenue Pr J.-L-Viala, 34193 Montpellier cedex 5, France.
authors.forename: M-A
authors.initials: MA
authors.lastname: Fauroux
authors.affiliation: Service d'odontologie, CHRU de Montpellier, 549, avenue du Pr-JL-Viala, 34295 Montpellier cedex 5, France; EA4203, UFR d'odontologie, 545, avenue Pr J.-L-Viala, 34193 Montpellier cedex 5, France.
authors.forename: C
authors.initials: C
authors.lastname: Anxionnat
authors.affiliation: Service d'odontologie, CHRU de Montpellier, 549, avenue du Pr-JL-Viala, 34295 Montpellier cedex 5, France; EA4203, UFR d'odontologie, 545, avenue Pr J.-L-Viala, 34193 Montpellier cedex 5, France.
authors.forename: C
authors.initials: C
authors.lastname: Biens
authors.affiliation: Service d'odontologie, CHRU de Montpellier, 549, avenue du Pr-JL-Viala, 34295 Montpellier cedex 5, France; EA4203, UFR d'odontologie, 545, avenue Pr J.-L-Viala, 34193 Montpellier cedex 5, France.
authors.forename: M
authors.initials: M
authors.lastname: Mechali
authors.affiliation: Service d'odontologie, CHRU de Montpellier, 549, avenue du Pr-JL-Viala, 34295 Montpellier cedex 5, France; EA4203, UFR d'odontologie, 545, avenue Pr J.-L-Viala, 34193 Montpellier cedex 5, France.
authors.forename: O
authors.initials: O
authors.lastname: Romieu
authors.affiliation: Service d'odontologie, CHRU de Montpellier, 549, avenue du Pr-JL-Viala, 34295 Montpellier cedex 5, France; EA4203, UFR d'odontologie, 545, avenue Pr J.-L-Viala, 34193 Montpellier cedex 5, France. Electronic address: j-torres@chu-montpellier.fr.
authors.forename: J-H
authors.initials: JH
authors.lastname: Torres
mesh_terms: D000044:Dental Abutments; D059605:Dental Implant-Abutment Design / Q000009:adverse effects* / Q000295:instrumentation; D015921:Dental Implants; D003763:Dental Leakage / Q000175:diagnosis* / Q000209:etiology*; D019232:Dental Restoration Failure; D003799:Dental Stress Analysis / Q000379:methods*; D004058:Diffusion; D019544:Equipment Failure Analysis / Q000379:methods*; D006801:Humans; D009584:Nitrogen / Q000493:pharmacokinetics; D019415:Torque
chemical_list: D015921:Dental Implants; D009584:Nitrogen
keywords: Azote; Connexion implantaire; Dental connection; Dental implant; Fluid leakage; Fuite; Implant dentaire; Nitrogen