Efficiency of clear aligners vs fixed appliances: A narrative review

Abstract

Clear aligner therapy has emerged as a popular alternative to traditional fixed orthodontic treatment, particularly among adult patients seeking aesthetic and comfortable options. These aligners, made of clear thermoformed plastic, offer advantages such as improved aesthetics, comfort, oral hygiene, and periodontal health compared to fixed appliances. Recent studies have shown that clear aligners can be equally effective as fixed appliances, if not more so, for treating mild to moderate malocclusions, with shorter treatment durations, fewer appointments, and reduced emergency visits. While clear aligners may not be as effective for complex cases requiring additional techniques, advancements in technology have expanded their applicability, allowing for the incorporation of methods used in traditional braces. However, more extensive research is needed to fully understand their impact on oral health and the oral microbiome, spanning all treatment phases from initiation to maintenance. Additionally, various brands of clear aligners with different materials and designs have entered the market, offering alternatives to the widely known Invisalign™, though scientific literature on these alternatives remains limited. This article discusses about the efficacy of clear aligners as compared to fixed appliances in orthodontic treatment.