Podcast
Questions and Answers
What was the intraclass correlation coefficient (ICC) for the angulation of the canines, indicating high intraobserver reliability?
What was the intraclass correlation coefficient (ICC) for the angulation of the canines, indicating high intraobserver reliability?
How many canines were included in the study measuring angulation reliability?
How many canines were included in the study measuring angulation reliability?
What inference can be made about the sector designation measurement among the five orthodontists?
What inference can be made about the sector designation measurement among the five orthodontists?
What was hypothesized regarding the absolute difference of the a-angle between ECG and ECMG?
What was hypothesized regarding the absolute difference of the a-angle between ECG and ECMG?
Signup and view all the answers
How many subjects’ panoramic radiographs were evaluated for measuring the canines’ absolute difference in a-angle?
How many subjects’ panoramic radiographs were evaluated for measuring the canines’ absolute difference in a-angle?
Signup and view all the answers
What was the estimated standard deviation associated with the measurements of the canines?
What was the estimated standard deviation associated with the measurements of the canines?
Signup and view all the answers
What statistical test was used to verify the normality of measurements in the study?
What statistical test was used to verify the normality of measurements in the study?
Signup and view all the answers
What does a power of 80% indicate in the context of the study?
What does a power of 80% indicate in the context of the study?
Signup and view all the answers
What was the significance level reported for the changes in a-angle between ECG and ECMG?
What was the significance level reported for the changes in a-angle between ECG and ECMG?
Signup and view all the answers
At what age does the canine inclination to the midline reach its maximum angle?
At what age does the canine inclination to the midline reach its maximum angle?
Signup and view all the answers
What percentage of favorable clinical outcomes was reported for the ECMG group?
What percentage of favorable clinical outcomes was reported for the ECMG group?
Signup and view all the answers
What is suspected if a canine shows excessive mesial inclination to the midline?
What is suspected if a canine shows excessive mesial inclination to the midline?
Signup and view all the answers
What method has been shown successful in inducing eruption of permanent teeth?
What method has been shown successful in inducing eruption of permanent teeth?
Signup and view all the answers
What was the minimum a-angle observed in the CG group?
What was the minimum a-angle observed in the CG group?
Signup and view all the answers
What does the abbreviation NS stand for in the context of the significance results?
What does the abbreviation NS stand for in the context of the significance results?
Signup and view all the answers
What is one proposed preventive approach to decrease the risk of canine impaction?
What is one proposed preventive approach to decrease the risk of canine impaction?
Signup and view all the answers
What percentage of maxillary canines may revert to a normal eruption path after extraction of corresponding deciduous canines?
What percentage of maxillary canines may revert to a normal eruption path after extraction of corresponding deciduous canines?
Signup and view all the answers
What diagnostic methods should be emphasized for early detection of ectopically erupting maxillary canines?
What diagnostic methods should be emphasized for early detection of ectopically erupting maxillary canines?
Signup and view all the answers
What is the estimated frequency of maxillary canine impaction in the general population?
What is the estimated frequency of maxillary canine impaction in the general population?
Signup and view all the answers
What additional measure can increase the success of erupted canines beyond extraction of deciduous canines?
What additional measure can increase the success of erupted canines beyond extraction of deciduous canines?
Signup and view all the answers
What potential issue can occur due to ectopically or nonerupting maxillary canines?
What potential issue can occur due to ectopically or nonerupting maxillary canines?
Signup and view all the answers
What is the range of frequency for maxillary canine impaction in subjects referred to oral surgery or orthodontics?
What is the range of frequency for maxillary canine impaction in subjects referred to oral surgery or orthodontics?
Signup and view all the answers
Which of the following factors is NOT mentioned as essential for manages maxillary canine impaction?
Which of the following factors is NOT mentioned as essential for manages maxillary canine impaction?
Signup and view all the answers
Why is there a concern regarding ectopically erupting canines?
Why is there a concern regarding ectopically erupting canines?
Signup and view all the answers
What is the recommended time frame for clinical and radiographic follow-ups after the removal of deciduous teeth?
What is the recommended time frame for clinical and radiographic follow-ups after the removal of deciduous teeth?
Signup and view all the answers
Why is the concomitant extraction of the deciduous canine and first molar recommended?
Why is the concomitant extraction of the deciduous canine and first molar recommended?
Signup and view all the answers
What advantage does concomitantly extracting deciduous canines and first molars provide?
What advantage does concomitantly extracting deciduous canines and first molars provide?
Signup and view all the answers
Which of the following is a criterion for starting orthodontic treatment with regard to canines?
Which of the following is a criterion for starting orthodontic treatment with regard to canines?
Signup and view all the answers
What is a noted outcome from the study regarding the intrabony position of maxillary permanent canines?
What is a noted outcome from the study regarding the intrabony position of maxillary permanent canines?
Signup and view all the answers
What was observed regarding ectopic canines after the recommended procedure?
What was observed regarding ectopic canines after the recommended procedure?
Signup and view all the answers
What potential clinical significance is stated about the space loss after tooth extractions?
What potential clinical significance is stated about the space loss after tooth extractions?
Signup and view all the answers
How does concomitant extraction affect orthodontic therapy timing?
How does concomitant extraction affect orthodontic therapy timing?
Signup and view all the answers
What was the success rate for uneventful canine eruption in the ECMG group?
What was the success rate for uneventful canine eruption in the ECMG group?
Signup and view all the answers
What is a primary advantage of concomitant extraction of the deciduous canine and first molar?
What is a primary advantage of concomitant extraction of the deciduous canine and first molar?
Signup and view all the answers
What is the risk associated with the procedure mentioned in the study?
What is the risk associated with the procedure mentioned in the study?
Signup and view all the answers
What allows for earlier initiation of fixed orthodontic therapy in the study's findings?
What allows for earlier initiation of fixed orthodontic therapy in the study's findings?
Signup and view all the answers
What dependency does successful treatment outcome not rely on?
What dependency does successful treatment outcome not rely on?
Signup and view all the answers
Which group had a higher percentage of canine eruption success?
Which group had a higher percentage of canine eruption success?
Signup and view all the answers
What is the potential benefit of the described protocol for patients?
What is the potential benefit of the described protocol for patients?
Signup and view all the answers
What procedure is compared to the concomitant extraction in terms of difficulty and trauma?
What procedure is compared to the concomitant extraction in terms of difficulty and trauma?
Signup and view all the answers
Study Notes
Maxillary Canine Impaction
- Maxillary canine impaction occurs in approximately 1.7% of the general population and up to 4.3% among those referred to orthodontics or oral surgery.
- Ectopic or nonerupting canines pose a risk of root resorption in adjacent permanent teeth, necessitating early detection.
- Detection methods include clinical digital palpation and radiographic analysis, such as measuring eruption angles on panoramic radiographs.
Preventive Measures
- Early extraction of corresponding deciduous canines is recommended to promote normal eruption of malposed canines, with studies indicating success rates for palatally displaced canines reverting to normal eruption paths between 50% and 78%.
- Using headgear to maintain space in the maxillary arch can increase successful eruption rates of canines up to 80%-87.5%.
Study Details and Methodology
- A study measured panoramic radiographs of randomly selected canines, resulting in a high intraclass correlation coefficient (ICC) of 0.968, confirming the reliability of measurements.
- Comparisons between groups (ECG, ECMG, CG) showed significant differences in canine inclination and sector positions after treatment, with high reliability of measurement methods.
Treatment Outcomes
- Favorable changes in the intraosseous position of maxillary canines were observed with the concomitant extraction of deciduous canines and first molars.
- This combined extraction technique resulted in a higher spontaneous eruption rate of ectopic canines and reduced risk of incisor root resorption.
- The ultimate success rate of canine eruption was found to be 97.3% in the ECMG compared to 78.6% in the ECG.
Guidelines for Clinical Practice
- Treatment protocols recommend clinical and radiographic follow-ups every 12 to 18 months to track canine eruption trends post-extraction.
- The extraction of both deciduous canines and first molars is biologically manageable and does not significantly increase clinical risks compared to extracting only the deciduous canines.
- This preventive approach addresses risks associated with ectopically erupting canines and potential resorption of adjacent roots.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
This quiz covers essential aspects of maxillary canine impaction, its frequency in different populations, and implications for orthodontic practice. Understand the importance of managing canine eruption to prevent adverse outcomes in dental health.
