Vertical
dimension is used to indicate the inferior-superior relationship that exists
between the mandible and the maxilla; it is maintained by occlusion of the
teeth and balanced tonic muscle contraction.
The
two factors that are considered for the measurement and selection of VDO
(Vertical Dimension of Occlusion) are Phonetic and Aesthetic assessments.
Relating
to aesthetics, an approximately measured VDO is used as the configuration of
the patient’s lips, nose, and chin. For phonetics, two familiar sounds are used
to devise a patient’s VDO.
These
sounds are Sibilant (a sound made when a stream of air is released as the
tongue is directed towards the edge of the teeth. For example, the consonants
at the beginning of the word zip, sip, chip) and Fricative (consonant sound
produced by positioning two articulators together. For example- having the
lower lip against the upper lip in the case of M)
Procedure
- The lower tip of the
mandible and the center bottom of the nose are marked for reference and used in
measuring the distance at VDO and VDR (vertical dimension at rest)
- A ruler is used to
measure the VDR, the reference that was marked earlier with the mandible at
rest is used
- Similar to step two,
the VDO is measured; but the reference here is the teeth in the centric
occlusion
- The FWS (freeway space)
is calculated as the difference between VDR and VDO
Effects of Having an Inaccurate VDO
- Patients having
excessive VDO usually feel as if something is stuffed in their mouth and they
find it very difficult to close their lips. Conversely, patients who’re having
deficient VDO will feel as if their mouth is collapsed; this is because the
lower length of their face is decreased and their chin seems too close to their
nose.
- Patients who experience
the effects stated above will consequently have to over-close their lips
- Just as it is mentioned
above, an alteration of the VDO will cause very severe discomfort to the
muscles of mastication and TMJ (Temporomandibular joints)
- Inaccurate measurement
of the VDO will strain the joint of the mandible
When is Vertical Dimension Used
- VDO is used to adjust
the lower length and dimensions of the occluded teeth after teeth extraction,
restoration or any other dental procedures
- It is used to aestheticallyimprove
the lower length of the face
- VDO is now being used
in Prosthetic dentistry
Why choose Pearl 32 Dental Spa
- We have clinics at
Alwarthirunagar, Anna Nagar and Saligramam; you can always benefit from our
dental services at any of the clinic that is close to you
- Our services are very
affordable and will not cost a dent in your pocket
- Our clinic environment
is always hygienic and pleasant; hence, our patients can always relax and feel
comfortable without fear
- Our dentists are
qualified and experienced at what they do. You can always approach them at any
time.
Do you have any problem related to the lower length
of your face?
If yes, then visit our Dental Spa to get all your
dental issues attended to today. We’re quite sure that you’ll leave our clinic
with stronger teeth and a better smile.