Orthodontics Study on Canine Position

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Questions and Answers

What percentage of patients with ectopically positioned maxillary canines experience root resorption?

25%

50% (correct)

75%

90%

What is the main benefit of early intervention for ectopically positioned canines?

To improve aesthetics

To decrease the risk of root resorption (correct)

To speed up the orthodontic treatment

To prevent adjacent incisor impaction

In the study, what was the greatest mean value for a-angle change observed?

16.4 (correct)

20.1

10.2

14.5

How many canines in the ECMG improved by 2 sectors?

5 Signup and view all the answers

What was a significant finding regarding the ECG and CG in terms of changes?

No statistically significant difference in changes Signup and view all the answers

What does ECMG stand for?

Ectopic Canine Management Group Signup and view all the answers

What was the primary comparison made with the untreated, nonrandomized control group?

Intraosseous positional changes of canines Signup and view all the answers

What ethical concern influenced the design of the study?

Presence of untreated control group Signup and view all the answers

What is the recommended follow-up period after the removal of deciduous teeth?

12 to 18 months Signup and view all the answers

What dental procedure is recommended as a preventive measure for retained maxillary permanent canines?

Concomitant extraction of the deciduous canine and first molar Signup and view all the answers

What is stated about the risk of space loss after tooth extractions?

It's unlikely to be of much clinical significance. Signup and view all the answers

What was the main aim of the study?

To analyze the efficacy of canine extraction as a preventive procedure. Signup and view all the answers

What anatomical change is associated with concomitant extractions, according to the study?

Greater parallelism between the roots of permanent teeth Signup and view all the answers

How many subjects were included in the study?

71 subjects Signup and view all the answers

What criteria were used to evaluate the outcome of the preventive measure?

Improvement of the intraosseous position of the displaced canine and successful eruption. Signup and view all the answers

What was observed with early orthodontic treatment initiation?

Earlier fixed orthodontic therapy commencement Signup and view all the answers

What effect does concomitant extraction have on ectopic canines?

It increases the rate of normal eruption. Signup and view all the answers

What were the subjects evaluated for prior to inclusion in the study?

Presence of craniofacial syndromes or other dental anomalies. Signup and view all the answers

Which teeth were considered for extraction in this preventive procedure?

Deciduous canine and first molar. Signup and view all the answers

Which factor is critical for determining orthodontic treatment plans after extraction?

Canine inclination and mesiodistal position Signup and view all the answers

What imaging methods were used in assessing the subjects?

Radiographic examinations only. Signup and view all the answers

What conclusion can be drawn about the changes in intrabony position of maxillary permanent canines?

They are favorable with concurrent extractions. Signup and view all the answers

What conditions were specifically excluded from the study criteria?

Severe crown hypoplasia, craniofacial syndromes, and traumatic injuries. Signup and view all the answers

What is the role of informed consent in the study?

Parents or guardians of minor subjects were required to provide it. Signup and view all the answers

What is the primary goal of early detection and prevention of maxillary canine impaction?

To avoid complicated and expensive procedures later Signup and view all the answers

What did Ericson and Kurol suggest regarding the treatment of palatally erupting maxillary canines?

Early extraction of primary canines Signup and view all the answers

What is one of the consequences of ectopic eruption of canines as discussed in the studies?

Resorption of maxillary lateral incisors Signup and view all the answers

What type of radiographic method was noted for early identification of canine impaction?

Panoramic radiography Signup and view all the answers

What were Leonardi et al.'s approaches to managing palatally displaced canines in their longitudinal study?

Interceptive treatment methods Signup and view all the answers

What does the term 'ectopic eruption' refer to in dentistry?

Eruption of teeth in abnormal positions Signup and view all the answers

Which factor is crucial for the orthodontist to consider to avoid complicated procedures?

The timing of dental development Signup and view all the answers

What is a common approach to reducing the incidence of unerupted palatally displaced canines?

Extraction of deciduous canines Signup and view all the answers

Which imaging technique was mentioned for assessing maxillary canine eruption?

Radiographic assessment Signup and view all the answers

What is the purpose of the longitudinal study by Ericson and Kurol?

Analyze the clinical supervision of maxillary canine eruption Signup and view all the answers

Which author is associated with a randomized clinical study on two interceptive approaches to canines?

Baccetti T Signup and view all the answers

What is one consequence mentioned related to ectopic eruption of maxillary canines?

Resorption of adjacent incisors Signup and view all the answers

What is stated about the eruption process of upper permanent canines?

It can be monitored with radiological studies. Signup and view all the answers

Which study discusses the effects of extracting deciduous molars on other teeth?

Carr LM’s research on bicuspid eruption Signup and view all the answers

In radiologic studies, what is a critical factor for maxillary canines?

Localization of unerupted canines Signup and view all the answers

Study Notes

Study Overview

Purpose: Evaluate effectiveness of extracting deciduous canine and first molar to prevent retention of maxillary permanent canines.
Study conducted at the University of Bologna, Italy with 71 subjects and 123 canines analyzed.

Methodology

Study was a randomized clinical trial with clinical and radiographic examination methods.
Participants included patients with displaced canines positioned palatally or centrally in the alveolar crest.
Assessment included comparison between extraction of only deciduous canines versus concurrent extraction of deciduous canines and first molars.

Findings

Significant improvement in intraosseous position of displaced canines observed with concomitant extractions.
Greater mean change in canine positioning (a-angle change) noted in the ECMG (extraction group) compared to ECG (control group) and CG (non-randomized control).
19 of 37 canines in ECMG improved by one sector; significant changes in tooth positions were measurable between initial (T0) and final (T1) examinations.

Clinical Implications

Concomitant extraction of both deciduous canine and first molar is recommended for patients with retained maxillary permanent canines to enhance eruption and reduce ectopic positioning.
Extraction method shown to decrease risk of root resorption in adjacent permanent teeth.
Regular follow-ups (12 to 18 months) post-extraction necessary to monitor canine eruption tendency.

Conclusion

Early extraction strategy is crucial for managing ectopically positioned canines and improving their chances of normal eruption.
Better outcomes were achieved with simultaneous extraction versus extraction of solely deciduous canines.
Reduces likelihood of complex orthodontic interventions resulting from delayed canine eruption.

Key Considerations

Importance of early diagnosis and intervention to prevent impaction.
Eruption process involved observation of canine inclination changes and spatial adjustments in tooth positioning.
Protocols for monitoring and further orthodontic treatment may be necessary based on individual patient evaluation and outcomes post-extraction.

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Explore the findings of a study evaluating the effectiveness of concomitant extraction of deciduous teeth on intraosseous canine position. This quiz will cover the details of the research methodology and significant improvements noted in the subjects. Ideal for students and professionals in the field of orthodontics.