Orthodontics & bite
Dental glossary
Explore terms in Orthodontics & bite. Read their definitions and related concepts to prepare questions for your dental visit.
Orthodontics & bite 30
Orthodontic treatment
Orthodontic treatment uses appliances to move teeth and improve their alignment and the way the upper and lower teeth meet.
Malocclusion
Malocclusion is a general term for problems with tooth alignment or the way the upper and lower teeth meet.
Class I malocclusion
Class I malocclusion is a condition in which the front-to-back relationship of the molars is generally within the normal range, but tooth alignment or other aspects of the bite are abnormal.
Class II malocclusion
Class II malocclusion describes a front-to-back bite relationship in which the lower dental arch is positioned behind the upper dental arch.
Class III malocclusion
Class III malocclusion describes a front-to-back bite relationship in which the lower dental arch is positioned ahead of the upper dental arch.
Skeletal malocclusion
Skeletal malocclusion is a condition in which the size, position, and shape relationships between the upper and lower jaw are primarily involved in bite problems.
Dental malocclusion
Dental malocclusion is a bite problem caused mainly by tooth position, alignment, or inclination rather than the relationship between the jaws.
Open bite
Open bite is a state of bite where the upper and lower teeth in a specific area do not touch each other and there is a gap between them when the teeth are closed.
Deep bite
A deep bite is excessive vertical overlap of the lower front teeth by the upper front teeth when the mouth is closed.
Anterior crossbite
An anterior crossbite is a reversal of the normal front-to-back relationship of the front teeth, such as when an upper front tooth bites behind a lower front tooth.
Posterior crossbite
A posterior crossbite occurs when the upper and lower back teeth meet in a reversed side-to-side relationship rather than the normal relationship.
Overjet
Overjet is the front-to-back distance between the upper and lower front teeth, also called horizontal overlap.
Overbite
Overbite is the amount by which the upper front teeth overlap the lower front teeth vertically when the mouth is closed.
Orthodontic diagnostic assessment
An orthodontic diagnostic test is an evaluation process that determines the need for treatment and a plan by checking the tooth alignment, bite, jaw relationship, and oral health.
Orthodontic wax
Orthodontic wax is a material that reduces friction by covering the parts when brackets or wires irritate the inside of the lips or cheeks.
Orthodontic bracket
A bracket is a small orthodontic part that attaches to the surface of a tooth, connects an orthodontic wire, and transmits force to the tooth.
Orthodontic archwire
An orthodontic wire is a metal wire that is connected to a bracket and transmits force to move the teeth in a planned direction.
Orthodontic ligature
A ligation material is a small rubber ring or thin metal wire used to hold the orthodontic wire in the bracket groove.
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