{"id":11379,"date":"2025-12-15T15:25:27","date_gmt":"2025-12-15T14:25:27","guid":{"rendered":"https:\/\/eztain.com\/blog\/\/gouttiere-dentaire-le-guide-complet\/"},"modified":"2025-12-20T19:42:46","modified_gmt":"2025-12-20T18:42:46","slug":"dental-retainer-complete-guide","status":"publish","type":"blog","link":"https:\/\/eztain.com\/en\/blog\/clear-retainer\/dental-retainer-complete-guide\/","title":{"rendered":"Dental Splint: The Complete Guide Written by an Orthodontist"},"content":{"rendered":"\n

Dental splints<\/strong> address five different needs: protecting enamel in cases of bruxism<\/strong>, stabilizing achieved alignment, correcting minor crowding with clear aligners<\/strong>, relieving TMJ<\/strong>, and clearing airways for light snorers. Their cost ranges from \u20ac150 for a rigid occlusal splint to \u20ac5,000 for a complete invisible alignment treatment. Therapeutic devices (occlusal, Michigan, mandibular advancement splints) may be reimbursed based on a reference rate set at \u20ac172.80<\/strong> after prior approval; adult orthodontics remains outside the official coverage list. When chosen correctly, a dental splint prevents tooth wear, alleviates jaw pain, and improves aesthetics without surgery. For retention splints, eZtain PEEK retention wires are increasingly favored as a replacement for lifelong retention splints. <\/p>\n\n\n\n

Why Wear a Dental Splint?<\/strong><\/h2>\n\n\n\n

Dental splints form a custom-made shield that limits tooth wear, keeps your teeth straight, and relaxes your jaw for daily comfort.<\/p>\n\n\n\n

The dental splint<\/strong> primarily acts as a shock absorber: positioned between the dental arches, it helps to evenly distribute pressure when you clench your teeth, preventing pain or wear.<\/p>\n\n\n\n

To understand its role, one must imagine the jaw as a lever system. The teeth are the contact points, and the muscles sometimes exert excessive pressure. The splint interposes itself between the two arches: it absorbs part of the forces, distributes them evenly, and prevents traumatic contacts. The result: less stress on the teeth, muscles, and joint. <\/p>\n\n\n\n

For individuals who grind their teeth at night (suffering from bruxism), a rigid splint reduces enamel wear by nearly 70% in one year. In other cases, particularly after orthodontic treatment, it keeps teeth securely in place while the jaw stabilizes. For jaw pain (TMJ disorders), a Michigan-type splint helps muscles relax, relieving tension and headaches. <\/p>\n\n\n\n

To straighten teeth, specifically for dental treatments using aligners, clear aligners go further: each aligner gradually moves the teeth, without braces or metal wires, to discreetly correct minor crowding. This is notably what Invisalign & Dr. Smile achieve through their treatments. <\/p>\n\n\n\n

In summary, splints: <\/strong><\/h3>\n\n\n\n
    \n
  • Stop nocturnal wear; morning migraines reduced by five-fold.
    <\/li>\n\n\n\n
  • Reduces post-orthodontic relapse from 37% to 6%, avoiding the need for further orthodontic treatment.
    <\/li>\n\n\n\n
  • Relieves 70% of joint pain within three months.
    <\/li>\n\n\n\n
  • Discreetly aligns teeth in adults, with easier hygiene.
    <\/li>\n<\/ul>\n\n\n\n

    Key takeaway<\/strong>: A dental splint is a custom medical device designed to protect, stabilize, or correct. Depending on its type, it can limit wear related to bruxism, maintain alignment after orthodontic treatment, slightly move teeth, relieve jaw pain, or improve nocturnal breathing. Its effectiveness always depends on an accurate diagnosis, regular wear, and follow-up by a healthcare professional. <\/p><\/blockquote><\/figure>\n\n\n\n

    What is the Price of a Dental Splint?<\/strong><\/h2>\n\n\n\n

    Depending on whether it is a simple occlusal splint or a complete aligner treatment, the price ranges from \u20ac150 to \u20ac5,000, excluding mutual insurance reimbursement.<\/p>\n\n\n\n

    A rigid therapeutic dental splint<\/strong> costs an average of \u20ac200; the social security reimbursement base is set at \u20ac172.80. A post-orthodontic retention splint<\/g>, on the other hand, costs between \u20ac150 and \u20ac300 when not included in the package or after the first year of reimbursement. The clear aligner<\/g> protocol \u2013 with its digital plan, 20 to 35 aligners, and quarterly check-ups \u2013 generally requires between \u20ac2,500 and \u20ac5,000. Finally, an anti-snoring mandibular advancement device ranges from \u20ac600 to \u20ac1,200 per unit, partially covered if an apnea syndrome is diagnosed. <\/p>\n\n\n\n

    Price differences are explained by the level of customization and follow-up. A simple occlusal splint requires an impression and a few adjustments, whereas an aligner treatment includes a detailed digital plan, several dozen successive aligners, and regular check-ups over several months. The more active and long-term the supervision required for the device, the higher the overall cost. <\/p>\n\n\n\n

    Dental Splint Category<\/strong><\/th>Purpose<\/strong><\/th>Average Price<\/strong><\/th>Reimbursement<\/strong><\/th><\/tr><\/thead>
    Protective Splint<\/td>Bruxism, Tooth Wear<\/td>\u20ac150 to \u20ac300<\/td>Yes, Partial Possible<\/td><\/tr>
    Therapeutic Splint<\/td>Jaw Pain (TMJ)<\/td>\u20ac180 to \u20ac350<\/td>Yes, After Approval<\/td><\/tr>
    Retention Splint<\/td>Maintain Straight Teeth<\/td>\u20ac150 to \u20ac300<\/td>No<\/td><\/tr>
    Clear Aligners<\/td>Straighten Teeth<\/td>\u20ac2,500 to \u20ac5,000<\/td>No<\/td><\/tr>
    Anti-Snoring Splint<\/td>Snoring, Mild Apnea<\/td>\u20ac600 to \u20ac1,200<\/td>Yes, Under Conditions<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    What is the Price of a Dental Splint for Adults?<\/strong><\/h3>\n\n\n\n

    For an adult, expect around \u20ac200 for a custom-made night guard and \u20ac2,500 to \u20ac5,000 to realign teeth with invisible aligners.<\/p>\n\n\n\n

    Reimbursement Details: <\/strong><\/p>\n\n\n\n

      \n
    • Rigid Splint<\/strong>: Partially reimbursed if the dentist submits a request to Social Security; mutual insurance may cover the remainder.
      <\/li>\n\n\n\n
    • Aligners<\/strong>: A quote is always provided; payment can often be spread over several months.
      <\/li>\n\n\n\n
    • Retention Splint<\/strong>: Costs approximately \u20ac250; to be replaced if it breaks or wears out over time.
      <\/li>\n\n\n\n
    • Anti-Snoring Device<\/strong>: Reimbursed if a test confirms more than 5 apneas per hour.
      <\/li>\n<\/ul>\n\n\n\n

      What are the Disadvantages of a Dental Splint?<\/strong><\/h2>\n\n\n\n

      The main risks of a dental splint are the gradual cessation of wear \u2014 common after a few weeks \u2014 which reduces its effectiveness, and the cumulative long-term cost associated with replacements.<\/p>\n\n\n\n

      Wearing a dental splint<\/strong> requires regularity and diligence<\/strong>, without which its benefits quickly disappear. For example, a clear aligner<\/strong> must be worn 22 hours a day<\/strong> to effectively move teeth. Below this threshold, the treatment slows down, or even regresses. The same applies to an occlusal splint<\/strong> or a relaxation splint<\/strong>: if removed too early at night or forgotten for several days, TMJ<\/strong> pain, bruxism<\/strong>, or mandibular tensions return. <\/p>\n\n\n\n

      The initial period can be uncomfortable: excessive salivation<\/strong>, slight speech impediment<\/strong>, or even frequent waking<\/strong> during the first two nights. These effects are temporary (48 hours to one week) but require an adaptation period. <\/p>\n\n\n\n

      Regarding hygiene, maintenance is non-negotiable<\/strong>:<\/p>\n\n\n\n

        \n
      • Brushing<\/strong> morning and evening with a mild soap,
        <\/li>\n\n\n\n
      • Weekly soaking<\/strong> in a disinfectant solution,
        <\/li>\n\n\n\n
      • Ventilated case<\/strong> away from heat or humidity.
        <\/li>\n<\/ul>\n\n\n\n

        Without this, the splint retains bacteria, tartar accumulates, the odor becomes unpleasant, and the gums<\/strong> can become inflamed.<\/p>\n\n\n\n

        Finally, the long-term cost<\/strong> can become a hindrance: a severe bruxer<\/strong> wears out their splint in 6 to 12 months<\/strong>, necessitating regular replacement. And for retention splints<\/strong>, a premature cessation (after orthodontics) promotes relapse<\/strong>: teeth, still mobile, shift again within a few weeks if retention is not maintained. Many patients stop too early \u2014 due to forgetfulness or comfort \u2014 and lose part of the achieved result. eZtain PEEK retention wires are now favored over retention splints, offering better comfort and preventing forgetfulness and thus relapses. <\/p>\n\n\n\n

        Key Disadvantages of Dental Splints<\/strong><\/h3>\n\n\n\n
          \n
        • Transient Discomfort: Salivation, slight difficulty speaking.
          <\/li>\n\n\n\n
        • Strict Hygiene: Dedicated brush + weekly soaking.
          <\/li>\n\n\n\n
        • Risk of Loss or Breakage: Costly replacement (~\u20ac250).
          <\/li>\n\n\n\n
        • Commercial Soft Splint: Exacerbates bruxism, not recommended.
          <\/li>\n<\/ul>\n\n\n\n

          Are clear retainers reimbursed by Social Security?<\/strong><\/h2>\n\n\n\n

          Yes for therapeutic splints (bruxism, TMJ) after prior approval; no for adult aligners and retention splints.<\/p>\n\n\n\n

          A rigid occlusal splint or a Michigan splint coded JPPB001 benefits from a reimbursement base set at \u20ac172.80. The dental surgeon submits a prior agreement request<\/strong>; the CPAM responds within fifteen days. The remaining out-of-pocket cost will depend on excess fees and mutual insurance coverage. Conversely, adult orthodontics with invisible aligners, as well as whitening splints, are not part of the official nomenclature: Social Security does not intervene, and only “enhanced dental coverage” plans can provide an additional package.
          <\/p>\n\n\n\n

          Does the Dental Splint Align Teeth?<\/strong><\/h2>\n\n\n\n

          Yes and no; only clear aligners, worn 22 hours a day, actually move teeth in a controlled and predictable manner.<\/p>\n\n\n\n

          Each aligner is a numbered dental splint<\/strong>; the 3D software programs 0.25 mm of movement per step. The succession of 20 to 35 aligners guides the arch from the initial to the target position, under the orthodontist’s supervision. Occlusal protection splints<\/strong> or retention splints<\/strong>, however, are purely passive: they immobilize or protect but exert no orthodontic force. Without a minimum wear of 22 hours, the tooth no longer follows the digital plan, necessitating reprinting a series and increasing the bill. <\/p>\n\n\n\n

          Many patients confuse protective splints and orthodontic aligners. Not all splints move teeth: only those integrated into a controlled orthodontic protocol exert an active and measured force. <\/p>\n\n\n\n

          Can a Dental Splint Straighten Teeth?<\/strong><\/h2>\n\n\n\n

          Yes, provided it is part of an orthodontic protocol using successive aligners supervised by an occlusion specialist.<\/p>\n\n\n\n

          In cases of minor crowding (\u2264 4 mm), clear aligners allow for complete realignment within six to twelve months. They apply light forces, preserve enamel and gums, and remain almost invisible in the office. After active treatment, an eZtain retention wire or a nighttime retention splint<\/strong> secures the long-term result. <\/p>\n\n\n\n

          A splint purchased at a pharmacy will not straighten teeth.

          <\/p>\n\n\n\n

          What is the Best Splint for Relieving Jaw Pain?<\/strong><\/h2>\n\n\n\n

          The custom-fitted flat rigid occlusal splint relaxes the TMJ and reduces muscle pain within a few nights.<\/p>\n\n\n\n

          TMJ<\/strong> pain often results from an occlusal<\/strong> imbalance: premature contacts, muscle tension, mandibular micro-deviations. The Michigan splint<\/strong> offers a perfectly flat occlusal plane; it frees the mandible from any parasitic guidance, reduces the activity of the masseter and temporal muscles, and drops the VAS (pain) score by 4 points in three weeks.
          Unlike soft mouthguards sold in pharmacies, it is cast in rigid acrylic resin (ISO 10993); the dentist balances contacts at D + 15, then every three months to compensate for wear. In 70% of patients, clicking and migraines disappear before the end of the first quarter. <\/p>\n\n\n\n

          Key Points<\/strong><\/p>\n\n\n\n

            \n
          • Flat Occlusal Plane: Deprograms neuromuscular patterns.
            <\/li>\n\n\n\n
          • Target Thickness: 2.0\u20132.5 mm at the molars to absorb the load.
            <\/li>\n\n\n\n
          • Regular Adjustments: Selective grinding, opening control.
            <\/li>\n\n\n\n
          • Contraindicated if active condylar arthritis or unstabilized fracture.
            <\/li>\n<\/ul>\n\n\n\n

            Which Type of Splint for Which Profile?<\/strong><\/p>\n\n\n\n

            Profile<\/strong><\/td>Typical Age<\/strong><\/td>Daily Concern<\/strong><\/td>Ideal Splint<\/strong><\/td>Quick Benefit<\/strong><\/td><\/tr>
            Child <\/strong><\/td>11-15 years<\/td>Teeth at Risk of Shifting After Braces<\/td>Nighttime Retention Splint<\/strong><\/td>Stabilizes Alignment During Bone Consolidation<\/td><\/tr>
            Young Adult <\/strong><\/td>18-25 years<\/td>Two Overlapping Incisors<\/td>Clear Aligners<\/strong><\/td>Invisible Straightening in 6\u20139 Months<\/td><\/tr>
            Adult <\/strong><\/td>30-45 years<\/td>Clicking, Limited Opening<\/td>Michigan Splint<\/strong><\/td>+10 mm Opening, Pain Halved in 1 Month<\/td><\/tr>
            Adult “Nocturnal Teeth Clencher”<\/strong><\/td>30-55 years<\/td>Severe Bruxism, Enamel Wear<\/td>Rigid Occlusal Splint<\/strong><\/td>Protector, Wear Stopped, Migraines -80%<\/td><\/tr>
            Adult “Light Snorer”<\/strong><\/td>35-60 years<\/td>Snoring and Micro-Apneas<\/td>Mandibular Advancement<\/strong> Device<\/td>Snoring Stopped, Deeper Sleep<\/td><\/tr>
            Adult “Fragile Enamel”<\/strong><\/td>25-40 years<\/td>Hypersensitivity to Cold<\/td>Thin Protective<\/strong> Splint<\/td>Shield + Fluoride Gel: Sensitivity -70% in 2 Weeks.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

            Types of Dental Splints<\/strong><\/h3>\n\n\n\n
            Type<\/strong><\/td>Indication<\/strong><\/td>Wear<\/strong><\/td>Typical Duration<\/strong><\/td>Price Range<\/strong><\/td><\/tr>
            Clear Aligner<\/strong><\/td>Minor Crowding, Diastemas<\/td>22 hours\/day<\/td>6\u201318 Months<\/td>\u20ac2,500\u2013\u20ac5,000<\/td><\/tr>
            Retention Splint<\/strong><\/td>Post-Orthodontics<\/td>Nighttime<\/td>Years (Decreasing)<\/td>\u20ac150\u2013\u20ac300<\/td><\/tr>
            Rigid Occlusal Splint<\/strong><\/td>Severe Bruxism<\/td>Nighttime<\/td>6\u201312 Months Before Remanufacture<\/td>\u20ac150\u2013\u20ac300<\/td><\/tr>
            Michigan Splint<\/strong><\/td>TMJ<\/strong> Pain<\/td>Nighttime (Sometimes 24 Hours)<\/td>3\u20136 Months of Adjustments<\/td>\u20ac180\u2013\u20ac350<\/td><\/tr>
            Mandibular Advancement Device<\/strong><\/td>Snorer \/ Mild Apnea<\/td>Nighttime<\/td>\u2265 12 Months<\/td>\u20ac600\u2013\u20ac1,200<\/td><\/tr>
            Whitening Splint<\/strong><\/td>Aesthetics<\/td>2\u20136 hours\/day<\/td>10\u201314 Days<\/td>\u20ac200\u2013\u20ac400<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

            Each model is thermoformed from an impression or 3D scan, using medical resin or polyurethane, then polished to prevent any irritation.<\/em><\/p>\n\n\n\n

            Manufacturing & Materials<\/strong><\/h2>\n\n\n\n

            The dental splint<\/strong> is now created using a 100% digital workflow: after a 3D scan<\/strong> (Trios\u00ae, iTero\u00ae, or Medit\u00ae), the practitioner obtains a precise virtual model accurate to \u00b1 20 \u00b5m. The file is sent to the laboratory, which prints a photopolymerizable resin mold, then thermoforms a medical polyurethane<\/strong> or acrylic resin<\/strong> plate onto it (CE and ISO 10993 standards). The shell is then hand-polished; each edge is rounded to protect the mucosa. Before delivery, the technician checks the occlusion<\/strong> on an articulated simulator; only uniform contacts on the occlusal splint guarantee correct force distribution. <\/p>\n\n\n\n

            Key Points<\/strong><\/p>\n\n\n\n

              \n
            • Bisphenol A-Free Polymer, Resin Batch Traceability.
              <\/li>\n\n\n\n
            • 4-Bar Thermo Pressure, Controlled Cooling to Prevent Micro-Cracks.
              <\/li>\n\n\n\n
            • Biocompatibility Certificate Attached to Patient File.
              <\/li>\n<\/ul>\n\n\n\n

              Patient Journey & Maintenance<\/strong><\/h2>\n\n\n\n

              From the first appointment to follow-up, management follows three main stages. First, the diagnosis<\/strong>: targeted interview (grinding? snoring? TMJ<\/g> pain?), palpation of masticatory muscles, and occlusion<\/g> recording. Next, the fitting<\/strong>: trial, contact adjustment, hygiene explanations. Finally, the check-up<\/strong>: mandatory visit at D + 15, then every three months to adjust or replace the appliance. <\/p>\n\n\n\n

              Cleaning the retainer requires a simple routine: rinse with lukewarm water after each removal, brush with mild soap morning and evening, and an antiseptic effervescent soak once a week. At the slightest crack or deformation, a new impression must be taken; a worn rigid retainer loses its shock-absorbing properties and must be replaced. <\/p>\n\n\n\n

              A poorly worn or poorly maintained retainer is not only ineffective; it can disrupt occlusion and worsen initial symptoms.<\/p>\n\n\n\n

              Maintenance Checklist<\/strong><\/p>\n\n\n\n

                \n
              • Dedicated soft brush; no abrasive toothpaste.
                <\/li>\n\n\n\n
              • Water < 50 \u00b0C; alcohol and dishwasher use prohibited.
                <\/li>\n\n\n\n
              • Ventilated case out of reach of a chewing dog.
                <\/li>\n<\/ul>\n\n\n\n

                Medical Indications & Benefits<\/strong><\/h2>\n\n\n\n

                A properly indicated dental retainer<\/strong> addresses three major functional problems:<\/p>\n\n\n\n

                  \n
                1. Bruxism<\/strong> \u2192 abrasion reduced by two-thirds and morning migraines reduced by 80%.
                  <\/li>\n\n\n\n
                2. TMJ pain<\/strong> \u2192 4-point decrease in VAS score over 3 months with a Michigan splint.
                  <\/li>\n\n\n\n
                3. Minor crowding<\/strong> \u2192 complete alignment in less than a year via clear aligners<\/strong>.
                  <\/li>\n<\/ol>\n\n\n\n

                  Studies (J Prosthodont 2023, Angle Orthod 2022) confirm 96% aesthetic satisfaction for invisible aligners and 70% success in joint pain. In prevention, the rigid retainer protects the enamel<\/strong> from chemo-mechanical wear and acts as a fluoride carrier during dentinal sensitivities. <\/p>\n\n\n\n

                  Quantified Benefits<\/strong><\/p>\n\n\n\n

                  Indication<\/strong><\/td>Measured Improvement<\/strong><\/td>Reference<\/strong><\/td><\/tr>
                  Severe Bruxism<\/td>Molar wear \u2212 68% over 12 months<\/td>INJS 2024<\/td><\/tr>
                  TMJ Pain<\/td>VAS \u2212 4 \/10 in 90 days<\/td>J Prosthodont 2023<\/td><\/tr>
                  Minor Alignment<\/td>Satisfaction 9.6 \/10<\/td>Angle Orthod 2022<\/td><\/tr>
                  Post-orthodontic relapse<\/td>Without retention 37%; with 6%<\/td>BJDO 2021<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

                  Risks & Contraindications<\/strong><\/h2>\n\n\n\n

                  Poorly fitted or poorly maintained, a retainer can create as many problems as it solves: gingival irritation, bacterial proliferation, or even tooth displacement if a soft, over-the-counter mouthguard is worn. Absolute contraindications remain rare \u2014 known methacrylate allergy, occlusion<\/strong> not stabilized by active periodontal disease, recent condylar fracture \u2014 but must be screened for during the assessment. <\/p>\n\n\n\n

                  Warning Points<\/strong><\/p>\n\n\n\n

                    \n
                  • Soft retainer \u2192 risk of increasing bruxism<\/strong> forces.
                    <\/li>\n\n\n\n
                  • Failure to wear \u2192 loss of alignment, aligner no longer fits.
                    <\/li>\n\n\n\n
                  • Poor hygiene \u2192 appearance of white spots or palatal candidiasis.
                    <\/li>\n<\/ul>\n\n\n\n

                    Conclusion: Dental Retainer or Retainer Wire?<\/strong><\/h2>\n\n\n\n

                    The dental retainer<\/strong> protects the enamel, relaxes the TMJ<\/strong>, and aligns teeth when referring to clear aligners<\/strong>. However, it remains a removable<\/strong> device: if forgotten, occlusion can shift again or bruxism can resume. To secure a freshly straightened smile long-term, the most reliable fixed solution remains the bonded retainer wire<\/strong> on the lingual surface. Invisible, it works 24\/7 without depending on patient motivation.
                    The winning approach therefore combines: <\/p>\n\n\n\n

                      \n
                    1. a rigid retainer for the first few months to absorb pressure and guide consolidation;
                      <\/li>\n\n\n\n
                    2. an eZtain retainer wire, machined from biocompatible PEEK, to ensure definitive stability without hindering oral hygiene.
                      By combining passive mechanics and active protection, the safest combination against orthodontic relapse and future wear is achieved.<\/li>\n<\/ol>\n\n\n\n

                      The retainer is a tool; stability depends on the right device, proper follow-up, and, long-term, on reliable retention like the eZtain retainer wire.<\/p>\n\n\n\n

                      <\/p>\n\n\n\n

                      About the Author :<\/p>\n\n\n\n

                      Dr. Nicolas Philippides<\/strong> is an orthodontist, a graduate of the University of Strasbourg, holding a CES in dentofacial orthopedics. With several years of clinical practice, he has guided hundreds of patients through their orthodontic treatment, with a constant commitment to long-term stability and comfort. Faced with the limitations of conventional retainers, he decided in 2022 to found eZtain Lab<\/strong>: a project born from a simple yet recurring clinical observation \u2014 too many relapses due to ill-fitting or overly fragile wires. In collaboration with INSA, he developed a new generation of PEEK retainer wires, custom-made, comfortable, and durable. Today, his research and experience fuel a single ambition: to offer reliable devices, designed to last, and adapted to the demands of modern orthodontics.

                      Article published on December 15, 2025<\/strong> \u2013 last updated on December 15, 2025<\/strong>.<\/p>\n\n\n\n