Class IIISemi-

adjustable condylar

path articulators

Prof. Dr. : Ahlam El-Sharkawy

Head of the Prosthodont

ic Department

Pharos University

in Alexandria

1-Accepts facebow transfer record to mount upper cast.

Semi-Adjustable ArticulatorsAccept the following records

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

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

4- Adjusted incisal guidance angle .

5- The lateral condylar guidance is adjusted according to the Hanau’s formula

L=H/8+12

SEMI-ADJUSTABLE ARTICULATORS

L = the lateral condylar path

H = the horizontal condylar path angle which is recorded from the patient.

6-Intercondylar distance fixed at 110mm

Fully Adjustable Condylar Path Articulators

Class IV

Prof.Dr. Ahlam El-SharkawyHead of prosthodontic departement Pharos University in Alexandria

Fully adjustable articulator

Complex Designed to duplicate TMJ features

Accept the following records:

1-Accept Face bow record to mount the upper cast.

Fully adjustable articulators

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

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 condylar angle.

Fully adjustable articulators

6- Incisal guidance angle adjusted according to the patient .

6- Inter-condylar distance adjusted accordingto the patient.

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.

CLASSIFICATION 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-SharkawyHead of prosthodontic departement Pharos University in Alexandria

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.

NON ARCON ARTICULATOR. The condyles are located on the upper

member of the articulator and the condylar Guidance on the lower member.

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