This UK lab guide covers the Hawley retainer we fabricate from an acrylic baseplate, a labial bow and Adams clasps for dental practices across England. It sets out how we build it, the design choices you can specify, and what we need from you to deliver a retainer that seats well and holds your result.
We are a GDC-registered UK dental laboratory (DAMAS and DLA registered). Hawley retainers are one of our fastest turnarounds: same day or next day once we receive your scan or impression, sent on by tracked courier to any practice in England.
The Hawley retainer is the oldest removable retainer still in routine use, and it sits alongside the rest of our removable orthodontic appliances work. It rewards a clear prescription, so this guide is written to help you specify the case precisely.
What a Hawley Retainer Is, From the Lab Bench
A Hawley retainer is a removable retainer with three working parts: an acrylic baseplate that sits against the palate or the lingual surfaces, a labial bow that crosses the anterior teeth, and clasps that grip the posterior teeth for retention. Introduced in 1919, the design has barely changed because it works and because it can be adjusted chairside.
From our side, the appeal is precision. Every component is bent and cured to a model, so the fit is governed by the impression or scan you send and by the design you specify. Unlike a vacuum-formed retainer, the wire elements can be re-activated months later, which makes the Hawley a long-term retention tool rather than a disposable one.
We fabricate Hawley retainers for the upper arch, the lower arch, or both, in standard or premium acrylic finishes.
The Three Components We Fabricate
Each Hawley is built from three elements that you can specify independently. Getting the prescription right on each one is what separates a retainer that seats first time from one that needs reworking.
- Acrylic baseplate: the body of the appliance, cured to the cast. It carries the wirework and resists relapse across the arch.
- Labial bow: a stainless steel wire that runs across the labial surfaces of the anterior teeth, with adjustment loops at the canines.
- Adams clasps: the standard retentive clasp on the molars, engaging the mesiobuccal and distobuccal undercuts to hold the appliance down.
Tell us the arch, the teeth to clasp, and any anterior spacing you want closed or maintained, and we build the rest to the model.
Labial Bow Designs You Can Specify
The labial bow is the visible signature of a Hawley retainer and the part most worth specifying. The standard bow runs from canine to canine with a U-loop at each canine, fabricated in 0.7 mm hard stainless steel wire. That loop is what lets you re-activate the bow chairside to maintain light anterior pressure.
- Standard short bow: canine to canine with U-loops at the canines. The default, and the easiest to adjust.
- Long labial bow: the loops sit further distally, useful where the canines are prominent or you want the wire clear of the loop area.
- Reverse or fitted bow: contoured tightly to the anterior teeth for a closer, less obtrusive line where aesthetics matter.
- Soldered or continuous variants: where you need the bow tied into additional clasps or finger springs, specify it and we will solder to the design.
If you have a preferred wire gauge or loop position, note it on the prescription. Otherwise we default to 0.7 mm with canine loops, which suits most retention cases.
Adams Clasps and Retention
The Adams clasp is the workhorse retainer on a Hawley. It engages the two buccal undercuts of a molar with arrowheads bridged by a buccal span, giving firm, adjustable retention that you can tighten as the appliance loosens with wear.
We place Adams clasps on the first molars by default. Where a molar is partially erupted or heavily restored, tell us and we can reposition the clasps onto the premolars or add a second pair for a longer arch. Ball clasps or C-clasps are available on request for interproximal retention in tight contacts.
Good clasp retention depends on clear undercuts in the impression, so capture the full buccal height of the clasp teeth.
The Acrylic Baseplate
The baseplate is cured to the working cast in heat or cold polymerised acrylic. On the upper it covers the palate; on the lower it follows the lingual gingival contour. The plate carries the wirework, distributes load across the arch, and is where colour and pattern customisation happens if your patient wants it.
- Coverage: full palatal on the upper, horseshoe lingual on the lower. Specify a horseshoe upper if palatal coverage is a tolerance issue.
- Thickness: trimmed for strength without bulk. We keep it as thin as the wirework and acrylic allow.
- Finish and colour: clear by default, with a full colour and glitter range available when the patient asks for it.
Why Adjustability Is the Hawley’s Advantage
The single reason to prescribe a Hawley over a clear retainer is adjustability. The labial bow loops and the Adams clasps can both be re-activated in the chair, so the same appliance can apply light corrective pressure, close a small relapse, or simply be re-tensioned as it loosens over years of wear.
That makes the Hawley a genuinely long-life appliance. The acrylic and stainless components hold up far better than thermoformed plastic, and because the patient removes it to eat, it avoids the wear a fixed retainer takes. For a patient who will keep a retainer for many years, the Hawley is usually the more economical choice over the life of the case.
Hawley vs Essix: When to Send Us Which
Hawley and Essix retainers solve the same retention problem in opposite ways. The Hawley is adjustable, durable and repairable but visible at the front. The Essix is clear and discreet but cannot be adjusted and wears through faster. Neither is universally better, so the choice follows the case.
- Choose Hawley when: you want chairside adjustability, long service life, settling of the posterior occlusion, or you expect to re-activate the bow.
- Choose Essix when: aesthetics are the priority, the patient wants an invisible retainer, or you need a fast, low-profile option.
If the patient wants the discretion of a clear option, send us the case for an Essix retainer instead and we will fabricate to the same model.
The Wraparound Retainer Variant
The wraparound retainer, sometimes called a Begg or clip-on retainer, is a close relative of the Hawley. Instead of a labial bow plus separate clasps, a single continuous wire wraps the full arch from molar to molar across the labial surfaces, with the acrylic confined to the lingual or palatal side.
It gives a cleaner anterior line and avoids occlusal interference from clasp wires, which suits cases where the bite is tight on the molars. The trade-off is less localised adjustability than the loops and Adams clasps of a true Hawley. Specify wraparound on the prescription if you want it; otherwise we build the standard Hawley with a labial bow and Adams clasps.
Where the same patient grinds at night, we can fabricate a separate night guard or splint from the same model.
Sending a Hawley Case to Flora
We accept digital scans from 3Shape, Medit, iTero and Dexis, or conventional impressions. For a Hawley we need a well extended impression that captures the full buccal height of the clasp teeth and clear undercuts, because clasp retention is only as good as the model. Note the arch, the clasp teeth, the bow design and any colour request on the prescription.
We are a UK lab working to DAMAS, DLA and GDC standards, with crown and bridge turnaround around ten working days and removable appliances scheduled alongside. If you have not worked with us before, your first case is free, up to a value of £100, with no invoice and no contract, so you can judge the fit and finish on your own patient before committing anything.
If the patient would benefit from a fixed solution as well, we also fabricate bonded retainers to the same case.
For what these appliances cost to make and how that splits between lab fee and chair time, see our hawley retainer cost guide.
What is the purpose of a Hawley retainer?
A Hawley retainer holds teeth in their corrected position after braces or aligners while the surrounding bone and tissue stabilise. The acrylic baseplate and labial bow resist relapse across the arch, and because the wire elements adjust, the same appliance can apply light corrective pressure if minor movement occurs.
What are the downsides of the Hawley retainer?
The main downside is the visible labial bow across the front teeth, which some patients dislike. It can also affect speech for a short adjustment period and, being removable, can be lost or left out. Against that, it is more durable, adjustable and repairable than a clear retainer.
What is a Hawley retainer made of?
A Hawley retainer is made of a cured acrylic baseplate, a stainless steel labial bow running across the anterior teeth, and Adams clasps on the molars for retention. We fabricate the wirework in hard stainless steel, usually 0.7 mm for the labial bow, bent and cured to your model.
How do Hawley and Essix retainers compare?
A Hawley is adjustable, durable and repairable but visible at the front. An Essix is clear and discreet but cannot be adjusted and wears through faster. Choose a Hawley for adjustability and long service life, and an Essix for aesthetics. We fabricate both to the same case. Essix retainers
What is a wraparound retainer?
A wraparound or clip-on retainer is a Hawley variant where a single continuous wire wraps the full arch across the labial surfaces instead of a separate bow and clasps. It gives a cleaner anterior line and avoids occlusal interference, at the cost of less localised adjustability.
Can you make a Hawley retainer for one arch only?
Yes. We fabricate the upper Hawley retainer, the lower Hawley retainer, or a wraparound Hawley retainer for either arch, each built with the acrylic baseplate and labial bow described above. Specify upper, lower, or both on the prescription and we build to that arch alone, whether that’s a full Hawley plate or a wraparound design.
Do orthodontists still use Hawley retainers?
Yes. Hawley retainers remain widely prescribed because they are adjustable, durable and easy to remove for cleaning. For patients who want a permanent option instead, we also fabricate fixed retainers bonded to the lingual surfaces.
