Podcast
Questions and Answers
Which method is not used for creating space in orthodontics?
Which method is not used for creating space in orthodontics?
- Procline incisors
- Retrocline incisors (correct)
- Derotation of posterior teeth
- Expansion
What is the primary effect of procline incisors in orthodontic treatment?
What is the primary effect of procline incisors in orthodontic treatment?
- Increase arch length
- Shorten the dental arch
- Reduce overbite
- Create space (correct)
Which of the following methods contributes to dental arch expansion?
Which of the following methods contributes to dental arch expansion?
- Derotation of posterior teeth
- Expansion (correct)
- Procline incisors
- Retrocline incisors
In orthodontic treatment, which option primarily indicates a reduction of space?
In orthodontic treatment, which option primarily indicates a reduction of space?
Which of the following is a common misconception regarding the creation of space in orthodontics?
Which of the following is a common misconception regarding the creation of space in orthodontics?
Which of the following statements describes a feature of a normal smile?
Which of the following statements describes a feature of a normal smile?
What is a characteristic not associated with a normal smile?
What is a characteristic not associated with a normal smile?
Which of the following best describes the angle of a normal smile?
Which of the following best describes the angle of a normal smile?
What is an indicator of a non-normal smile?
What is an indicator of a non-normal smile?
Which feature does not indicate a well-proportioned smile?
Which feature does not indicate a well-proportioned smile?
Study Notes
Space Creation
- Derotation of posterior teeth creates space
- Proclining incisors creates space
- Retroclining incisors does not create space
- Expansion creates space
Normal Smile Features
- Upper incisors do not touch lower lip and run parallel to it
- Width of smile displays at least upper first premolars
- Whole of the upper incisor are showing with interproximal gingiva
- Width of smile displays at least upper second Molar is NOT a feature of a normal smile
Spontaneous Movement
- Spontaneous movement is greater in growing children
- Spontaneous movement is less in adults
- Spontaneous movement is increased when extractions are carried out prior to eruption of adjacent teeth
- Spontaneous movement is increased if no occlusal interferences are present
Retained Deciduous Mandibular Incisors
- Causes lingual eruption of permanent mandibular incisors
Space Analysis
- Positive value indicates space deficiency
- Space discrepancy is calculated from space available minus space needed
- Negative value indicates excess space
Class I Malocclusion
- In crowded Class I malocclusions, extractions in both arches are preferred to discourage the development of one arch more than the other
- Expansion is not always the treatment of choice in crowded dentition
- Fixed appliances are not always the treatment of choice in crowded dentition
Serial Extraction
- Aims to intercept developing arch-length deficiency and reduce/eliminate extensive appliance therapy needs
Arch Length Discrepancies
- The most likely malpositioned tooth in a mandibular arch length discrepancy is the 2nd premolar
Crowding Relief
- Most spontaneous improvement occurs within the first 6 months after extractions
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Description
This quiz explores key concepts in orthodontics, focusing on space creation, normal smile characteristics, and the spontaneous movement of teeth. It will test your understanding of how tooth positioning affects dental aesthetics and treatment outcomes. Ideal for students and professionals in dental fields.
