1. Class III Semi-adjustable condylar path articulators
Prof. Dr. : Ahlam El-Sharkawy
Head of the Prosthodontic Department
Pharos University in Alexandria

2. Semi-Adjustable Articulators Accept the following records
1-Accepts facebow transfer record to mount upper cast.

3. 2- Accepts centric relation record to mount the lower cast.

4. 3- Accepts protrusive records to adjust the articulator’s horizontal guidance.

5. 4- Adjusted incisal guidance angle .

6. Semi-Adjustable Articulators
5- The lateral condylar guidance is adjusted according to the Hanau’s formula
L=H/8+12
L = the lateral condylar path
H = the horizontal condylar path angle which is recorded from the patient.

7. 6-Intercondylar distance fixed at 110mm

8. Fully Adjustable Condylar Path Articulators
Class IV
Fully Adjustable Condylar Path Articulators
Prof.Dr. Ahlam El-Sharkawy
Head of prosthodontic departement
Pharos University in Alexandria

9. Fully adjustable articulator
Complex
Designed to duplicate TMJ features

10. Fully adjustable articulators
Accept the following records:
1-Accept Face bow record to mount the upper cast.

11. 2-Accept centric occluding relation record to mount the lower cast.

12. Fully adjustable articulators
3-Accept protrusive record to adjust the articulator horizontal condylar angles.
4-Accept right lateral record, to adjust the right
condylar angle.
5-Accept left lateral record, to adjust the left

13. 6- Incisal guidance angle adjusted according to the patient .

14. 6- Inter-condylar distance adjusted according to the patient.

15. Point Of Difference
Simple Hinge
Mean Value
Semi-Adjustable
Fully-Adjustable
Horizontal Angle
Lateral Angle
Incisal Angle
Incisal Pin
Inter Condylar distance
Face bow
Arcon/Non.

16. Classification Prof.Dr. Ahlam El-Sharkawy
Depends on the location of the condyle whether in the upper or lower member of the articulator:
1- Arcon articulator.
2- Non Arcon articulator.
Prof.Dr. Ahlam El-Sharkawy
Head of prosthodontic departement
Pharos University in Alexandria

17. Arcon articulator
The condyles are located on the lower member of the articulator and the condylar guidances are on the upper member.
AR=Articulator
Con= Condyle.
Arcon

18. Non arcon articulator.
The condyles are located on the upper member of the articulator and the condylar Guidance on the lower member.

19. Articulator Design Arcon - condylar element on lower
Just like the condyles are attached to the mandible
Mechanical fossae located on the upper member just like the glenoid fossae
Non Arcon - condylar element on upper
Unlike natural anatomy
The condylar path (glenoid fossae) is located on the lower member
There are two basic designs used in the fabrication of articulators
Condylar inclination is used to set the instrument as close as possible to the anatomic inclination of the patient