Dentistry Face Bow Concepts

Records the relationship between maxilla and TMJ, crucial for articulator transfer.

Records TMJ opening/closing axis position for accurate model transfer.

Caliper-like tool for recording maxilla/TMJ relationships.

The position of the temporomandibular joint in relation to the maxilla.

Moving the recorded TMJ relationship from patient to treatment device.

An imaginary line in the lower part of the upper jaw, where condyles rotate without moving sideways.

The widest opening the female jaw can achieve, typically 35 to 45 mm.

The widest opening the male jaw can achieve, typically 45 to 55 mm.

The average jaw movement in the second stage is typically between 20 and 25 mm.

The jaw comprises upper and lower components, which both include structures such as combarent, half disk and possibly consist/concest.

The main frame of the face bow, shaped like a U.

The component that attaches to the occlusion rim.

Rods or pieces that connect to the face bow frame, potentially attached to the ear.

The mechanism for connecting the bite fork to the face bow.

A type of face bow, possibly referencing the upper jaw.

A device used in dentistry to precisely position and record the mandible's relationship to the maxilla.

Positioned 13mm in front of the ear canal, aligning with the canthotragal line.

Graduated to allow measurement of condylar movement and position.

Includes a U-shaped bow, condylar rods, clamp, universal clamp, bite fork.

The reference line connecting the outer eye corner to the ear's tragus.

A type of facebow that uses the ear canals as reference points to find the hinge axis. It's simplified and doesn't determine the exact hinge axis location.

A facebow with adjustable calipers that precisely locates the hinge axis. This is crucial for accurate model transfer to the articulator.

An attachment on the mandibular occlusion rim of the facebow that helps find the centric relation record. This relates the maxillary facebow and mandibular cast to the hinge axis.

A record of the jaw's position when the teeth are in the most stable and relaxed relationship, used to locate the hinge axis in relation to the maxillary and mandibular casts.

A mechanical device that mimics the Temporomandibular Joint (TMJ) and jaws, allowing dental models to be attached and simulate jaw movements.

The joint connecting the lower jaw (mandible) to the skull, responsible for jaw movements like chewing and talking.

Dental models of the upper (maxillary) and lower (mandibular) jaws, used to plan and create dental treatments.

A part of the articulator that holds the lower jaw (mandibular cast) in its most stable, centered position.

The angle of the condylar post, representing the natural slope of the jaw joint, influencing how the model jaw moves.

A device that simulates the movements of the lower jaw, used for diagnosis, treatment planning, and arranging artificial teeth.

Allows dentists to see the patient's occlusion from the tongue side, which wouldn't be possible in the mouth.

Dental work can be done outside of the patient's mouth, eliminating the need for them to be present.

It cannot perfectly replicate all of the complex movements of the lower jaw.

Used to arrange artificial teeth for complete dentures and removable partial dentures.

An articulator where the condyle is attached to the lower member and the condylar guidance (how the hinge moves) is part of the upper member.

An articulator where the condyle and condylar guidance are both located on the same member (either upper or lower).

The only example of an ARCON type articulator is the fully adjustable articulator.

The rounded bony projection at the end of the mandible (lower jaw) that articulates (connects and moves) with the temporal bone in the skull.

The path that the condyle follows as the jaw moves, usually determined by the shape of the articulator.

The part of the articulator (a model of the TMJ) that represents the condyle of the lower jaw. It's attached to the upper member of the articulator.

The way the condyles on the articulator move during simulated jaw opening and closing. It's determined by the design of the articulator.

An articulator where the condylar guidance is determined by the lower member. It doesn't incorporate a specific path of movement for the condyles.

ARCON articulators have condylar guidance built into the upper member, mimicking the natural TMJ movement while non-ARCON articulators simply mimic hinge movement.

A device that simulates the jaw's opening and closing movements, allowing for setting models in a centric relation position.

The most stable and relaxed position of the jaw where the condyles are in their most superior position in the joint.

A component of a Simple Hinge Articulator that limits the vertical opening of the articulator.

A component of a Simple Hinge Articulator used to adjust the height of the articulator.

Because it doesn't record the spatial relationship between the maxillary and mandibular models, which is crucial for accurate transfers.