Discover a retention system like no other - an innovative laser cut nickel titanium lingual retainer.
Orthodontic retention is still the hot topic on everyone’s lips, reinforced by the ‘Hold That Smile’ campaign launched by the BOS last September. As many studies show that teeth can relapse to their original positions in approximately 70% of orthodontic treatment cases (1), the million dollar question is; which is the most effective and suitable way to ‘hold that smile?’ We are all looking for something that is comfortable and that suits each individual patient’s needs, yet offers a practical and simple protocol for all orthodontic professionals. The advantages and challenges that accompany many retention systems on the market encompass many areas such as cost, patient ease of use, comfort, chair time, occlusal interferences and risk of relapse.
The transfer jig allows for easy placement to bond the Memotain to canines to secure. Once secured, remove jig, etch and bond to remaining incisors. The benefits of choosing Memotain over rounded wire include superior accuracy, improved hygiene, and a reduced risk of tooth movement. Images courtesy of Stuart Davidson, GDP.
What are the popular choices for orthodontic retention?
Vacuum formed removable retainers are popular. Offering fast turnaround on retainers where the model is poured and retainer is fabricated can be quick, easy and cost effective. However, its success lies in the hands of your patient; can you rely on them to wear it every night? Popular braided wire retainers; and gold and stainless steel chain retainers eliminate the need for patients to remember to wear the appliance, and in addition to holding the position of the teeth they can give periodontal support or retention of a diastema if needed. A drawback to these methods is the often lengthy chair-side appointment required for a fitting and the potential for failure once fitted. Approximately 1/2 of maxillary and 1/5 of mandibular multi-stranded lingual retainers fail during retention in some form, either through bond failure or wire breakage (2). Braided and wire retainers also may cause occlusal interference; hygiene complications; including difficulty in flossing; and torque forces causing unwanted tooth movement.
Memotain has a lower profile and allows for easier flossing in comparison to traditional retainers. Images courtesy of CA Digital.
Why choose a digital solution?
Memotain is a bonded lingual retainer offering a revolutionary solution which tackles many of the challenges above. Memotain involves a CADCAM patent pending manufacturing process which laser cuts Memory-Metal Nitinol wire to an individual patient’s anatomy. Made from nickel titanium, or NiTi for short, Memotain retains its position, yet still has the necessary flexibility required for everyday mastication forces. It is precisely laser cut out from a sheet of nickel titanium which eliminates any need to bend the material - a process still used in other systems that can create weaknesses and lead to fracture.
After cutting, the wire is electropolished. This brightens, cleans, smooths and polishes - lessening the chance of microbial colonisation. During this process, the corners of the rectangular wire are also slightly rounded. With a thickness of 0.4mm by 0.4mm, the wire possesses a low profile which means the patient is less likely to encounter occlusal complications or discomfort against the tongue.
‘Once you’ve tried Memotain you’ll struggle to justify using any other bonded retainer. I’ve been providing them for my patients for almost two years now and am extremely impressed by the fit, quality and ease of placement. Patients love Memotain retainers because they feel so smooth and possess such a low profile - they don’t even know they are wearing them. Memotain can be designed to be placed with the occlusion in mind so the bite feels good too. The turn around and service from DB Orthodontics’ inhouse lab Studio 8 - also providers of the quality aligner Autograph, has been fantastic. It’s as simple as scan, send, email a prescription, and 7-10 days later Memotain is in your practice ready to be placed.’
Stuart Davidson, General Dentist and Clinical Director of the Clyde Munro Dental Group.
A simple fabrication process
The process is easy. Simply post your alginate or silicone impressions or send
your digital files to the DB lab, Studio 8. Digital platforms including ITero, 3Shape and Carestream scanner (CS Connect) are recommended, along with the Memotain Lab form which can be downloaded from the DB Orthodontics
website. The turnaround is 10 days, but if you choose to review the position of the retainer, allow slightly longer.
Patented CAD/CAM technology creates a retainer to the exact measurements of the patient's dentition. Images courtesy of CA Digital.
An unprecedented accuracy
Memotain addresses many of the issues faced when using traditional bonded retainers due to its unique digital approach. When you receive your first retainer, the level of accuracy this produces is nothing short of impressive. A 24-month warranty against breakages and the addition of the handy transfer jig for placement are both testament to the fact that this well thought out system delivers on many levels – from patient experience and efficacy, to a smooth in-surgery routine.
1. Green, James I J. (2015). Dental materials: The multi-stranded wire retainer. DOI: 10.1038/bdjteam.2015.54.
2. Neal D. Kravitz, Dan Grauer, Pascal Schumacher, and Yong-min Joe. (2017). Memotain: A CAD/CAM nickel-titanium lingual retainer. Am J Orthod Dentofacial Orthop 2017;151:812-5
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