Interventions for treating oral lichen planus: a systematic review

Area of Science:

• Immunology
• Dermatology
• Oral Medicine

Background:

• Oral lichen planus (OLP) is a prevalent chronic inflammatory condition.
• It is linked to immune system dysfunction and often causes painful symptoms.
• Complete healing of symptomatic OLP is uncommon, necessitating effective treatment strategies.

Purpose of the Study:

• To systematically review and assess the evidence for the efficacy and safety of various treatments for symptomatic oral lichen planus.
• To identify which interventions, if any, demonstrate superior effectiveness in managing OLP symptoms.

Main Methods:

• A comprehensive search of multiple databases (Cochrane Oral Health Group Trials Register, CENTRAL, MEDLINE, EMBASE) was conducted in January 2011.
• Inclusion criteria focused on randomized controlled trials (RCTs) evaluating any intervention for symptomatic OLP.
• A total of 28 RCTs were included in this Cochrane review.

Main Results:

• No significant evidence supports topical pimecrolimus over placebo for OLP pain relief.
• Weak evidence suggests topical aloe vera may reduce OLP pain compared to placebo.
• Topical ciclosporin showed weak, unreliable evidence for reducing OLP pain and signs.
• No clear difference was found between topical corticosteroids (TCSs) and topical calcineurin inhibitors for pain reduction.
• No RCTs compared TCSs with placebo for symptomatic OLP.

Conclusions:

• There is insufficient evidence to support the superior effectiveness of any specific treatment for symptomatic oral lichen planus.
• Existing treatments, including topical corticosteroids, lack robust comparative data against placebo.
• Further high-quality randomized controlled trials are needed to guide OLP treatment decisions.