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Related Experiment Videos

Interventions for treating oral leukoplakia.

G Lodi1, A Sardella, C Bez

  • 1Oral Medicine and Oral Pathology, Università degli Studi di Milano, Via Beldiletto 1/3, Milano, Italy, 20142. giovanni.lodi@unimi.it

The Cochrane Database of Systematic Reviews
|November 1, 2001
PubMed
Summary
This summary is machine-generated.

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Currently, no treatments effectively prevent oral leukoplakia malignant transformation. Some therapies may resolve lesions, but relapses and side effects are common, necessitating further research for oral cancer prevention.

Area of Science:

  • Oral medicine
  • Oncology
  • Evidence-based dentistry

Background:

  • Oral leukoplakia is a common oral lesion with a potential for malignant transformation.
  • Most oral leukoplakia cases are asymptomatic, making treatment decisions primarily based on their precancerous nature.

Purpose of the Study:

  • To assess the effectiveness, safety, and acceptability of various treatments for oral leukoplakia.

Main Methods:

  • A systematic review of randomized controlled trials (RCTs) was conducted.
  • Searches included major databases (MEDLINE, EMBASE, CancerLit, Biological Abstracts, Cochrane library) and expert consultations.
  • Malignant transformation was the primary outcome; clinical resolution and dysplasia severity were secondary outcomes.

Main Results:

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  • No surgical interventions (laser, cryotherapy) have been evaluated in RCTs.
  • Six RCTs on non-surgical interventions were included, testing Vitamin A, retinoids, bleomycin, mixed tea, and beta carotene.
  • None of the tested treatments demonstrated effectiveness in preventing malignant transformation compared to placebo. Beta carotene and Vitamin A/retinoids showed improved clinical remission rates but were associated with common relapses and side effects.

Conclusions:

  • There is currently no robust evidence supporting treatments that prevent malignant transformation of oral leukoplakia.
  • While some treatments may aid in lesion resolution, high rates of relapse and adverse effects are significant concerns.