Introduction

The complexity of malocclusions, such as anterior dental irregularity, is important in determining the outcome of treatment with a removable orthodontic appliance. Little’s Irregularity Index is used to assess alterations of anterior teeth.

Material and methods

This was a descriptive study done on 47 patients’ dental casts before and after treatment using a removable or-thodontic appliance, between 2013 and 2017. Measurements were made using Little’s Irregularity Index.

Results

Patients who presented most often for removable orthodontic appliance treatment had minimal and moderate ante-rior dental irregularity. After treatment completion, the condition of the patients’ anterior teeth was altered to hav-ing either no or minimal irregularities, and no further patients had severe irregularities.

Conclusions

The condition of patients’ maxillary and mandibular anterior teeth improved after under­going removable ortho-dontic appliance treatment provided by dental students at our dental hospital between 2013 and 2017. Thus, the treatment given can be considered appropriate and in accordance with removable ortho­dontic appliance indi-cations and functioning.