title: Optimal placement of the two anterior implants for the mandibular All-on-4 concept.
abstract: The novelty of the All-on-4 concept for a mandibular implant-supported fixed dental prosthesis is the inclination of the posterior implants. Typically, the anterior implants are placed lingually relative to the canine/incisor teeth and perpendicular relative to the occlusal plane. According to the laws of elementary biomechanics, the long axis of the implant unit should be aligned to the axis of the occlusal loading forces during clenching in the maximal intercuspal position. When several implants are connected by a prosthesis, the mean axis of the overall occlusal loading must be taken into account. The objective of this report was to propose a different position for anterior implants by tilting them labially to counterbalance the distal inclination of the posterior implants.
authors: Associate Professor, Faculty of Odontology, Aix-Marseille University, Marseille, France. Electronic address: jeanphilippe.re@free.fr.
authors: Jean-Philippe
authors: JP
authors: Ré
authors: Professor, Faculty of Odontology, Aix Marseille University, Marseille, France.
authors: Bruno
authors: B
authors: Foti
authors: Consultant Periodontist, Faculty of Odontology, Aix Marseille University, Marseille, France.
authors: Jean-Marc
authors: JM
authors: Glise
authors: Professor, Faculty of Odontology, Aix Marseille University, Marseille, France.
authors: Jean-Daniel
authors: JD
authors: Orthlieb
mesh_terms: D000368:Aged; D001696:Biomechanical Phenomena; D001732:Bite Force; D016302:Centric Relation; D003758:Dental Implantation, Endosseous / Q000295:instrumentation / Q000379:methods*; D015921:Dental Implants; D019094:Dental Prosthesis, Implant-Supported; D003781:Denture Retention; D003826:Denture, Complete, Lower; D004955:Esthetics, Dental; D005260:Female; D006801:Humans; D007575:Jaw, Edentulous / Q000534:rehabilitation / Q000601:surgery; D008334:Mandible / Q000601:surgery*; D010347:Patient Care Planning; D014716:Vertical Dimension
chemical_list: D015921:Dental Implants