fbpx
North Sydney Orthodontics Suite 3, Level 5, 8 West St North Sydney NSW 2060 Call (02) 9954 5144

Glossary

A simple  explanation of some terms used in Orthodontics

Occlusion the way the teeth bite together
Class 1 occlusion The ideal biting relationship  (most common Caucasian bite)
Class 2 occlusion The lower teeth are behind the Class 1 position
Class 3 Occlusion The lower teeth are biting in front of the ideal position
Overjet horizontal overlap of the upper incisors compared to the lower incisors ideal is usually approx 2-3mm
Overbite Vertical overlap of the upper incisors compared to the lower incisors -ideal usually approx 2-3mm
Incisor teeth 2 Front teeth either side of the midline
Canine Teeth  Third tooth from the midline (often fang shaped)
Premolar teeth (teeth before the molars) positioned 4th and 5th from the midline
Molar teeth  large double teeth at the back of the mouth
Alignment  how well the teeth fall on an ideal arch shape
Angulation  AKA tip – a tilt of a tooth along a horizontal axis perpendicular to the arch
Inclination AKA Torque a tilt of a tooth along a horizontal axis parallel to the arch
Rotation a twist of a tooth along its long axis
Levelling reducing the overbite to normal
Relationship similar to ‘occlusion’  how close to ideal the teeth bite
Crowding The amount of excess dental tissue to the arch length
Arch length The length of the average line judged to describe the shape of the dental arch

 

Specialists in tooth alignment and correction of bite problems