Category: R

  • Reversible hydrocolloids

    Gels that solidify by cooling and return to a flowable state when the temperature is increased.  

  • Reverse torque value (RTV)

    Resulting value of the torsional force required to unscrew an implant body from its osteotomy. It is assumed that RTV would increase as osseointegration progresses during the healing phase.  

  • Reverse torque test (RTT)

    Experimental procedure in which an implant is subjected to unscrewing to determine the relative strength of attachment between the implant and bone. It is usually done on a comparative basis between differing implant surface topographies or roughness. It is assumed that the reverse torque value (RTV) will increase as the process of osseointegration progresses. RTT…

  • Reverse curve

    When viewed in the sagittal plane, the occlusal plane position as outlined by the cusp tips and incisal edges of the teeth is curved upward.  

  • Reverse articulation teeth

    Artificial teeth that are shaped to allow for the buccal cusp of the maxillary teeth to be arranged in the central fossae of the mandibular teeth.  

  • Reverse articulation

    Positioning of the mandibular teeth that is more buccal than normal relative to the maxillary teeth, such that the fossae of the mandibular teeth articulate with the buccal cusp of the maxillary teeth.  

  • Reverse architecture

    When the crest of the interdental gingiva or bone is located apical to its midfacial and midlingual margins.  

  • Retrusive

    A mandibular position that may be more distal than that described as maximum intercuspation.  

  • Retrusion

    Movement of the mandible directed posteriorly. Active backward movement of the mandible (lower jawbone) relative to the maxilla (upper jawbone). The process of forcing backward, especially with reference to the teeth.  

  • Retruded contact position

    The occlusal relationship that occurs when the mandible and the condyles are in their most retruded position. This position may be more retruded than the position referred to as centric relation.