Acne Scars Treatment Research Studies Quiz
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Questions and Answers

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 (correct)
  • Long-term effects of CO2 laser treatment on acne scars
  • Comparison of different laser treatments for acne scars
  • Prevention of acne scars using CO2 laser

In which journal was the study by Taub AF regarding the treatment of acne scars published?

  • Lasers in Dermatology Journal
  • American Journal of Clinical Dermatology (correct)
  • Dermatological Advances Journal
  • Skin Care Research Journal

What technique was evaluated for treating facial atrophic acne scars according to Xu Y and Deng Y's study?

  • Dermal fillers
  • Microdermabrasion
  • Fractional CO2 laser (correct)
  • Chemical peels

What was the focus of Magnani LR and Schweiger ES review of the literature?

<p>Efficacy of fractional CO2 lasers for atrophic acne scars (B)</p> Signup and view all the answers

What skin types were treated with a picosecond laser with diffractive lens array, according to Haimovic A et al.?

<p>Skin types IV to VI (A)</p> Signup and view all the answers

What aspect of skin histology did Tanghetti EA study in relation to a picosecond alexandrite laser and a fractional lens array?

<p>Changes in collagen structure (B)</p> Signup and view all the answers

After 3 sessions of treatment, which laser side showed a significantly higher ECCA score?

<p>Picosecond laser side (B)</p> Signup and view all the answers

Compared to the fractional laser side, which side showed significantly lower pain scores?

<p>Picosecond laser side (B)</p> Signup and view all the answers

In terms of improving severity score of scars, how did the picosecond laser side compare to the fractional laser side?

<p>Fractional laser side showed significantly more improvement (A)</p> Signup and view all the answers

Which laser type is stated to be more effective in improving atrophic acne scars?

<p>Fractional CO2 laser (B)</p> Signup and view all the answers

What was the most common adverse reaction associated with both lasers?

<p>Erythema and edema (B)</p> Signup and view all the answers

Before the treatment, was there a significant difference in the ECCA score between the picosecond and fractional laser sides?

<p>No significant difference (C)</p> Signup and view all the answers

What type of laser was used on the left side of the face of the patients?

<p>Ultrapulsed fractional CO2 laser (C)</p> Signup and view all the answers

How many sessions of laser treatment did all patients receive?

<p>3 sessions (A)</p> Signup and view all the answers

What was the severity of scars evaluated by according to the text?

<p>ECCA grading scale (A)</p> Signup and view all the answers

How were pain scores and adverse reactions recorded during the study?

<p>Using a questionnaire (C)</p> Signup and view all the answers

What statistical test was used to compare ECCA scores and pain scores between the 2 sides of the face?

<p>Paired t test (B)</p> Signup and view all the answers

What was the interval between each laser treatment session?

<p>2 months (A)</p> Signup and view all the answers

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