title: Predictable Technique to Register Retruded Contact Position (RCP) Using a Disposable Jaw Relation Recording Device.
abstract: The dental literature presents various definitions and techniques to describe and register centric relation (CR) or centric occlusion (CO). Briefly reviewing the literature in relation to CR, this article proposes the use of the term retruded contact position (RCP), clinically defined as retruded, unstrained, repeatable position and where the mandibular movements start when a Gothic arch tracing is used. With this clinical definition, a technique can be easily selected that meets all the requirements of such position. The article discusses the use of a jaw recorder that is an intraorally graphic recording device that results in a tracing of mandibular movements in one plane, with the apex of the tracing indicating the retruded, unstrained, and repeatable relationship. The intersection of the arcs produced by the right and left working movement form the apex of the Gothic arch tracing. Several clinical situations using the jaw recorder are described. Clinicians can now quickly and accurately record RCP, balance complete, partial, or implant dentures, and orthopedically reposition the mandible. The technique achieves highly reliable and reproducible results.
authors.affiliation: Associate Professor, Department of Restorative Dentistry, Loma Linda University, School of Dentistry, Loma Linda, California.
authors.forename: Tony
authors.initials: T
authors.lastname: Daher
authors.affiliation: Clinical Associate Professor, Department of Diagnosis and Health Promotion, Tufts University School of Dental Medicine, Boston Massachusetts.
authors.forename: William A
authors.initials: WA
authors.lastname: Lobel
authors.affiliation: Clinical Associate Professor, Department of Prosthodontics, University of Tennessee Health Science Center, Memphis, Tennessee; Adjunct Associate Professor, Tufts University School of Dental Medicine, Boston, Massachusetts; Adjunct Associate Professor, Department of Comprehensive Dentistry, University of Texas Health Science Center Dental School, San Antonio, Texas; Adjunct Associate Professor, Department of Restorative Dentistry, Loma Linda University, School of Dentistry, Loma Linda, California.
authors.forename: Joseph
authors.initials: J
authors.lastname: Massad
authors.affiliation: Adjunct Assistant Professor, Department of Prosthodontics, University of Tennessee Health Science Center, Memphis, Tennessee.
authors.forename: Swati
authors.initials: S
authors.lastname: Ahuja
authors.affiliation: Owner, Danilov Dental Laboratory, Carmichael, California.
authors.forename: Zarko Jack
authors.initials: ZJ
authors.lastname: Danilov
mesh_terms: D003766:Dental Occlusion; D006801:Humans; D007574:Jaw Relation Record / Q000295:instrumentation*; D008334:Mandible / Q000033:anatomy & histology; D015203:Reproducibility of Results