In primary teeth. The ideal occlusal scheme is:
- a- Flush terminal.
- b- Mesial step.***
- c- Distal step.
The ideal occlusal scheme for primary teeth is a flush terminal plane, which is when the posterior teeth are aligned in a straight line from the first molar to the second molar on both the upper and lower jaws. This alignment helps to distribute forces evenly across the chewing surfaces of the teeth and promotes proper jaw growth and development.
Image of flush terminal plane in primary teeth:
A mesial step is when the lower second molar is positioned slightly anterior to the upper second molar, and a distal step is when the lower second molar is positioned slightly posterior to the upper second molar. These steps can occur in primary dentition, but they are not considered to be the ideal occlusion.
Here are some of the benefits of having a flush terminal plane in primary teeth:
- Reduced risk of tooth wear:
A flush terminal plane distributes forces evenly across the chewing surfaces of the teeth, which can help to reduce the risk of tooth wear.
- Improved jaw growth and development:
A flush terminal plane can help to promote proper jaw growth and development by guiding the teeth into their correct positions.
- Reduced risk of occlusal problems in permanent dentition:
A flush terminal plane can help to prevent occlusal problems in permanent dentition by establishing a good foundation for the development of the permanent teeth.
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