1. DENTAL ARTICULATORS
By Patrick Royson, Doha Al Doujealy
201-ca 2013

2. Articulator
 It is a mechanical
instrument
that
represents
the
temporomandibular
joints
and
jaw
members, to which
maxillary
and
mandibular casts may
be
attached
to
simulate some or allmandibular
movements.
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d. sirag eddin al-hamadi

3. Functions

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It allow most
of the prosthetic
work to be done
in the absence
of the patient
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4. Purpose of articulator
• *To hold the maxillary & mandibular cast in
a determined fixed relationship.
• *To stimulate the jaw movements like
opening & closing.
• *To produce border movements (extreme
lateral & protrusive movements)

5. Uses of an articulator
• *To diagnosis the state of occlusion in both the
natural & relationship dentitions.
• *To plan dental procedures based on the
relationship between opposing natural &artificial
teeth .e.g. evaluation of the possibility of balanced
occlusion.
• *To aid in the fabrication restorations &
prosthodontics replacements.
• To correct & modify completed restorations.
• *To arrange artificial teeth

6. Classification of articulators
• The design of articulators have been based on
:• 1-Theories of occlusion Bon will theory
•
Conical
•
Spherical
• 2-based on the types of inter occlusal record.
• 3- based on the ability to stimulate the jaw
relation.
• 4 based on the adjustability of articulator

7. Types of articulators
 1-Simple hinge articulators.
 2-Fixed or mean value condylar
path articulators.
 3-Adjustable condylar path
articulators.
a.Semi-adjustable condylar path
articulators.
b.Fully-adjustable condylar path
articulators.
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8. 1- Simple Hinge Articulators
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9. Possible movements:
 This type of
articulators
gives
only
opening
and
closing
movements.
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d. sirag eddin al-hamadi

10. 2- Mean Value Or Fixed Condylar
Path Articulators
 Design:
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11. Possible movements
 1-Opening and
closing.
 2-Protrusive
movement at a
fixed
horizontal
condylar path
angle.
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d. sirag eddin al-hamadi

12. 3- Adjustable Condylar Path Articulators
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13. A- Semi Adjustable Condylar Path
Articulators
 Design:
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14. Possible movements
 1-Opening and closing.
 2-Protrusive movement to an angle recorded from
the patient.
 3-Lateral movement to an angle calculated from
the Hanau’s formula:
 L=H/8+12.
 Where; L = the lateral condylar path
 H = the horizontal condylar path angle which is
recorded from the patient.
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d. sirag eddin al-hamadi

15. B- Fully adjustable
articulators
 They differ from the semiadjustable articulators in that the
lateral condylar path inclinations
are adjusted according to records
taken from the patient.
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d. sirag eddin al-hamadi

16. We can watch how a new model
articulator works.

17. How to diagnosis in articulator….