18 Questions
What is the main focus of the study mentioned in the text by Bjørn M et al.?
Treatment of acne scars with fractional CO2 laser at different intervals
In which journal was the study by Taub AF regarding the treatment of acne scars published?
American Journal of Clinical Dermatology
What technique was evaluated for treating facial atrophic acne scars according to Xu Y and Deng Y's study?
Fractional CO2 laser
What was the focus of Magnani LR and Schweiger ES review of the literature?
Efficacy of fractional CO2 lasers for atrophic acne scars
What skin types were treated with a picosecond laser with diffractive lens array, according to Haimovic A et al.?
Skin types IV to VI
What aspect of skin histology did Tanghetti EA study in relation to a picosecond alexandrite laser and a fractional lens array?
Changes in collagen structure
After 3 sessions of treatment, which laser side showed a significantly higher ECCA score?
Picosecond laser side
Compared to the fractional laser side, which side showed significantly lower pain scores?
Picosecond laser side
In terms of improving severity score of scars, how did the picosecond laser side compare to the fractional laser side?
Fractional laser side showed significantly more improvement
Which laser type is stated to be more effective in improving atrophic acne scars?
Fractional CO2 laser
What was the most common adverse reaction associated with both lasers?
Erythema and edema
Before the treatment, was there a significant difference in the ECCA score between the picosecond and fractional laser sides?
No significant difference
What type of laser was used on the left side of the face of the patients?
Ultrapulsed fractional CO2 laser
How many sessions of laser treatment did all patients receive?
3 sessions
What was the severity of scars evaluated by according to the text?
ECCA grading scale
How were pain scores and adverse reactions recorded during the study?
Using a questionnaire
What statistical test was used to compare ECCA scores and pain scores between the 2 sides of the face?
Paired t test
What was the interval between each laser treatment session?
2 months
Test your knowledge on research studies related to the treatment of acne scars, including the use of fractional CO2 laser and radiofrequency microneedling techniques. Explore findings from studies published in prestigious dermatology journals.
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