HINGE LINE Meaning and
Definition
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A hinge line is a term most commonly used in dentistry and orthodontics to describe an imaginary line that represents the axis or rotation point of the mandible (lower jaw) in relation to the maxilla (upper jaw). It is also referred to as the "terminal hinge axis" or the "axis of rotation." The hinge line is significant in dental procedures as it is used as a reference point to establish and adjust the position of the mandible during various treatment procedures.
In dental articulation, the hinge line is crucial for achieving accurate and stable occlusion (bite), prosthetic restorations, and the fabrication of dental appliances such as dentures and orthodontic devices. It serves as a guide for determining the correct movement and positioning of the mandible to ensure optimal function and aesthetics.
The hinge line is located near the temporomandibular joint (TMJ), where the mandible connects with the skull. It corresponds to the rotation axis around which the mandible opens and closes during the process of mastication (chewing) and jaw movement. The clinical significance of the hinge line lies in its association with the natural movement and function of the TMJ, allowing the dentist or orthodontist to replicate or modify these movements to achieve desired treatment outcomes.
Common Misspellings for HINGE LINE
- ginge line
- binge line
- ninge line
- jinge line
- uinge line
- yinge line
- hunge line
- hjnge line
- hknge line
- honge line
- h9nge line
- h8nge line
- hibge line
- himge line
- hijge line
- hihge line
- hinfe line
- hinve line
- hinbe line
- hinhe line
Etymology of HINGE LINE
The word "hinge" has its origins in the Old English word "henge", which meant "a circular band" or "a hook". This term likely derived from the Proto-Germanic word "hangjan", meaning "to hang". Over time, "hinge" came to specifically refer to a movable joint or mechanism that connects two objects and allows them to swing or pivot.
The term "line" comes from the Old English word "līne", which in turn originated from the Latin word "līnea", meaning "a string, cord, or line". "Line" has been used to describe a variety of linear concepts, such as the features of a surface or the path of a moving object.
When combined, the phrase "hinge line" refers to the imaginary line formed by the axis of rotation in a hinge mechanism. This line represents the point around which an object pivots or swings.
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