Two measuring points are required in the midline of the face – one related to the nose, and one to the chin. We recommend a combination of some of the above for a simplified clinical determination of RVD. These include various facial measurements, swallowing methods, biting force measurements, phonetic methods, tactile methods and electromyographic measurements. Many methods have been advocated for the measurement of the RVD. Tilting the head backwards pulls the mandible away from the maxilla, and a forward inclination pushes the mandible and attached structures closer to the maxilla.įull size image Resting vertical dimension (RVD) measurement The weight of the soft tissues attached to the mandible plays a very important role in the RVD as does the position of the head. This must be done prior to determining the RVD for the edentulous patient. 1īecause of the role played by the 'elastic' properties of the soft tissue environment of the mouth, the importance of developing the form of the upper denture as described in Part 5 is emphasised. For these reasons it is the starting point from which the OVD is estimated. RVD should also be taken into account as an important aspect of the appearance of the denture-wearing patient. However, the RVD may be considered as a factor when determining as to whether a patient will be able to tolerate wearing dentures without intra-oral tissue damage occurring. It is now known that the RVD is not a stable position throughout life for a given individual. A similar set of circumstances is considered to exist in the edentulous patient – although the RVD may differ from that which pertained when natural teeth were present.
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