Podcast
Questions and Answers
What happens to the eruption of permanent teeth if a primary molar is extracted before the age of 7?
What happens to the eruption of permanent teeth if a primary molar is extracted before the age of 7?
- It is halted
- It remains unaffected
- It is delayed (correct)
- It is accelerated
What is the primary mechanism of mandibular space closure?
What is the primary mechanism of mandibular space closure?
- Mesial tipping of the first permanent molar (correct)
- Protraction of the posterior teeth
- Retroclination of the anterior teeth
- Distal movement of the first permanent molar
What is the indication for a space maintainer in a patient who has lost a primary molar?
What is the indication for a space maintainer in a patient who has lost a primary molar?
- To accelerate the eruption of the permanent tooth
- To delay the eruption of the permanent tooth
- To maintain the space for the erupting permanent tooth (correct)
- To promote the distal movement of the first permanent molar
What is more significant in overall occlusal development compared to the exact timing of permanent tooth eruption?
What is more significant in overall occlusal development compared to the exact timing of permanent tooth eruption?
What is the significance of eruption charts in orthodontics?
What is the significance of eruption charts in orthodontics?
What is the primary consideration when deciding if a space maintainer is needed?
What is the primary consideration when deciding if a space maintainer is needed?
What happens when a maxillary second primary molar is lost?
What happens when a maxillary second primary molar is lost?
What type of movement occurs in the maxilla during space closure?
What type of movement occurs in the maxilla during space closure?
How soon should a space maintainer be applied after tooth extraction?
How soon should a space maintainer be applied after tooth extraction?
What is a characteristic of space closure in the mandible?
What is a characteristic of space closure in the mandible?
Why is timing of tooth extraction important?
Why is timing of tooth extraction important?
What percentage of root development is completed when a tooth clinically emerges?
What percentage of root development is completed when a tooth clinically emerges?
How long does it take for a premolar to move through 1mm of bone, as measured on bitewing radiographs?
How long does it take for a premolar to move through 1mm of bone, as measured on bitewing radiographs?
What is one of the factors to consider when deciding the need for a space maintainer?
What is one of the factors to consider when deciding the need for a space maintainer?
What is the effect of a strong mentalis muscle on the developing mandible?
What is the effect of a strong mentalis muscle on the developing mandible?
What is the result of losing primary teeth too early, when the permanent tooth is not yet ready to erupt?
What is the result of losing primary teeth too early, when the permanent tooth is not yet ready to erupt?
Why is the time of primary tooth loss and stage of root development not a reliable indicator for the need for a space maintainer?
Why is the time of primary tooth loss and stage of root development not a reliable indicator for the need for a space maintainer?
