Posterior occlusion changes with a Hawley vs Perfector and Hawley retainer

A Hawley clasp modification.

JCO/FEBRUARY 2010 © 2010 JCO, Inc. T venerable Hawley retainer has been basically unaltered in form and application since its introduction to the specialty nearly 100 years ago.1 To add to its utility, we suggest a modification of the retentive clasping mechanism. Although we prefer to use ball clasps rather than Adams clasps because of their sturdiness and simplicity, they are shorter and thus...

A feasible method to improve adherence of Hawley retainer in adolescent orthodontic patients: a randomized controlled trial.

BACKGROUND Retention is an important component of orthodontic treatment; however, poor compliance with retainer use is often encountered, especially in adolescents. The purpose of this study was to prove the hypothesis that verbal instructions combined with images showing the severe consequences of poor compliance can increase retainer use. METHODS This study was a randomized controlled trial...

How Things Persist , by Katherine Hawley

Comparison of vacuum-formed and Hawley retainers: a systematic review.

INTRODUCTION Hawley retainers (HRs) and vacuum-formed retainers (VFRs) are the 2 most commonly used retainers in orthodontics. However, the basis for selection of an appropriate retainer is still a matter of debate among orthodontists. In this systematic review, we evaluated the differences between VFRs and HRs. METHODS Electronic databases (PubMed, EMBASE, Cochrane Library, ISI Web of Scienc...

Comparison of retention characteristics of Essix and Hawley retainers

OBJECTIVE We aimed to compare the retention characteristics of Essix and Hawley retainers. METHODS Adolescents undergoing fixed appliance treatment at 2 centers were recruited for this study. Twenty-two patients (16 women and 6 men) wore Essix retainers (Essix group) while 20 (14 women and 6 men) wore Hawley retainers (Hawley group). The mean retention time was 1 year, and the mean follow-up ...