Extraction vs no treatment: Long-term facial profile changes.

Area of Science:

• Orthodontics
• Dental Aesthetics
• Facial Growth

Background:

• Long-term soft tissue changes following orthodontic treatment involving tooth extraction are of significant clinical interest.
• Understanding these changes is crucial for predicting and managing facial aesthetics post-treatment.

Purpose of the Study:

• To evaluate long-term soft tissue profile alterations in patients who underwent orthodontic extraction.
• To compare these changes with those observed in an untreated control group.

Main Methods:

• A cohort of 47 patients treated with premolar extraction was compared to 57 untreated individuals.
• Descriptive statistics and independent t-tests were employed to analyze and compare soft tissue profile changes.

Main Results:

• Both untreated and extraction groups exhibited downward and forward soft tissue profile changes.
• The extraction group showed a more pronounced forward component in profile changes compared to the untreated group.
• Ultimately, the soft tissue profiles of both groups were comparable at the study's conclusion.

Conclusions:

• No significant overall difference in soft tissue profiles was found between the extraction and untreated groups.
• Directional changes, particularly in the lips and chin, showed variations, with extraction cases exhibiting a greater forward shift.
• Orthodontic treatment involving extraction does not appear to have adverse long-term effects on soft tissue profile development.