Make Retainer Fit Again Essential Techniques And Solutions

Critical Safety Precautions:

Never adjust a retainer if it is cracked, warped, or shows signs of delamination (separation of layers in acrylic).

• ✖️ Avoid excessive heat (e.g., boiling water) to soften plastic, as it warps the retainer permanently and distorts the fit.
• ✖️ Do not use household tools (e.g., scissors, files) unless they are sterilized and orthodontic-grade.
• ✖️ Limit adjustments to edges only; never modify holes, clips, or wire attachments without professional guidance.
• ✖️ Discontinue DIY adjustments if:
  • Gums bleed or swell after trimming.
  • The retainer becomes loose or unstable within 48 hours.
  • Adjustments fail to resolve discomfort after two attempts.

Commercial Retainer Adjustment Kits vs. Homemade Solutions

Commercial Adjustment Kits

Recommended for: Minor edge smoothing, wire bending, and temporary fit improvements. Not a substitute for professional realignment.

Homemade methods should be a last resort due to irreversible damage risks.

• Boiling Water Method:
  • Claim: Softens acrylic to "reshape" the retainer.
  • Reality: Causes permanent warping, altering the retainer’s alignment and rendering it ineffective.
  • Risk: Gum irritation from altered fit; voids warranty if the retainer was custom-made.
• Dental Wax or Orthodontic Wax:
  • Use: Covers sharp edges or pressure points temporarily.
  • Application:
    1. Clean the retainer and dry thoroughly.
    2. Roll a pea-sized piece of wax between fingers to soften.
    3. Press firmly onto the problematic edge for 5–10 seconds until adhered.
    4. Trim excess wax with a sterilized scalpel or dental tool to avoid interference with speech/eating.

    Professional Adjustment Methods for Retainer Reshaping and Customization

    Professional retainer adjustments involve precise techniques to restore fit, alignment, and functionality when wear or misalignment occurs. Orthodontists and dental laboratories employ specialized methods—ranging from traditional handcrafting to advanced digital fabrication—to ensure accuracy, durability, and patient comfort. These techniques address gaps, pressure points, or structural degradation while minimizing discomfort and maintaining long-term effectiveness. Below, structured comparisons highlight the evolution of adjustment methodologies, their technical workflows, and performance metrics.
    

    Heat Molding for Retainer Reshaping

    Heat molding is a widely used in-office technique to reshape thermoplastic retainers without permanent alteration of the material’s integrity. The process involves controlled heating to soften the retainer, followed by manual or tool-assisted reshaping to conform to the patient’s current dental anatomy. Orthodontists typically use steam baths, specialized heat guns, or microwave-compatible trays to achieve uniform heating (typically between 60–70°C for 10–15 seconds). Once pliable, the retainer is pressed against a dental model or the patient’s teeth using finger pressure or custom molds to eliminate gaps or high-pressure areas.

    Key Considerations:
    

  • Material Suitability: Effective only on thermoplastic retainers (e.g., Essix, Vivera). Hard acrylic or wire-reinforced retainers require alternative methods.
  • Precision Limits: Manual reshaping may not correct complex misalignments (e.g., rotational deviations) without multiple adjustments.
  • Patient Comfort: Requires gradual cooling to avoid thermal burns or warping. Post-adjustment, the retainer may need 24–48 hours to stabilize.

  Thermoplastic retainers should never be heated in direct flame or boiling water, as uneven expansion can cause irreversible deformation or material degradation.

  Wire Adjustments in Hybrid and Hawley Retainers

  Hybrid (combination) and Hawley retainers incorporate metal wires to provide additional retention and adjustment capabilities. Orthodontists modify these wires through bending, twisting, or soldering to realign teeth or redistribute pressure. Common wire adjustment techniques include:

  - Active Bending: Using pliers to apply gentle force to the wire to encourage tooth movement (e.g., closing diastemas or correcting mild rotations).
  

  • Soldering: Reattaching or reshaping wire components when breakage or loosening occurs, often requiring a dental soldering station.
  • Elastic Chain Replacement: Adjusting or replacing interproximal elastics to alter traction forces on specific teeth.

  Limitations:
  

  • Skill Dependency: Requires orthodontic expertise to avoid overcorrection or wire fatigue.
  • Durability: Frequent adjustments may weaken wire integrity, necessitating eventual replacement.
  • Discomfort: Post-adjustment soreness is common but typically resolves within 3–5 days.

  Relining Techniques for Custom Fit Restoration

  Relining involves adding a new inner layer to the retainer to compensate for gum or bone changes, or to fill voids caused by wear. This method is commonly applied to Essix-style clear retainers and is categorized into two approaches:

  1. Direct Relining (Chairside):
  

  • A thin layer of light-cured composite resin or autopolymerizing acrylic is applied to the retainer’s inner surface while it is seated in the patient’s mouth.
  • A curing light or chemical reaction hardens the material, creating a conforming layer.
  • Advantages: Immediate fit adjustment; minimal lab time.
  • Disadvantages: Limited thickness (typically <0.5 mm); may require periodic reapplication.

  2. Indirect Relining (Laboratory):
  

  • A new retainer is fabricated using an updated impression of the patient’s teeth, often incorporating the original retainer as a base for the reline material.
  • Materials: Polyvinyl siloxane (PVS) or alginate impressions are used to capture current anatomy, followed by vacuum-forming or pressure-lamination of the reline layer.
  • Advantages: Longer-lasting corrections; better for extensive wear.
  • Disadvantages: Higher cost; requires lab processing time (3–7 days).

  Relined retainers should be inspected for proper occlusion after hardening to prevent premature contact or uneven pressure distribution.

  Comparison: Traditional Lab Adjustments vs. Digital Scanning Methods

  The evolution from analog to digital retainer adjustments has transformed workflow efficiency, accuracy, and patient experience. Below is a side-by-side comparison of the two primary methodologies:
  

  Feature	Traditional Lab Adjustments	Digital Scanning Methods
  Process Overview	Physical impressions (alginate/silicone) → model casting → manual reshaping or relining.	Intraoral scanner (e.g., iTero, 3Shape) → digital design → 3D printing or milling.
  Accuracy	±0.5 mm (dependent on technician skill).	±0.1 mm (high-resolution scans reduce human error).
  Turnaround Time	7–14 days (including shipping).	1–3 days (in-office or overnight lab processing).
  Material Options	Limited to lab-compatible thermoplastics/acrylics.	Expanded to biocompatible resins, composites, and even metal alloys.
  Cost per Adjustment	$150–$400 (labor + materials).	$200–$600 (scanner + digital fabrication equipment).
  Patient Comfort	Temporary discomfort from impressions; multiple visits.	Minimal discomfort; fewer appointments.
  Durability	Moderate (prone to wear over time).	High (precision fabrication reduces gaps/pressure points).
  Customization	Basic adjustments (relining, wire bending).	Complex modifications (segmented retainers, lingual bars).
  Equipment Required	Dental lab, plaster models, hand tools.	Intraoral scanner, CAD/CAM software, 3D printer/mill.

  Digital Advantages:
  
  • Predictive Design: Software simulates adjustments before fabrication, reducing trial-and-error.
  • Data Integration: Scans can be merged with pre-treatment records for long-term monitoring.
  • Hybrid Workflows: Some clinics combine digital scans with traditional lab finishing for complex cases.

  3D Printing in Retainer Fabrication and Adjustments

  Additive manufacturing (3D printing) has revolutionized retainer adjustments by enabling on-demand, patient-specific modifications with minimal material waste. The workflow integrates digital scanning, computer-aided design (CAD), and printing technologies to produce retainers with sub-millimeter precision. Key steps include:

  1. Digital Scanning:
  

  • Intraoral scanners capture 3D surface data of the patient’s teeth and surrounding structures. High-resolution scans (e.g., 3Shape Trios, Align Technology iTero) ensure accurate replication of anatomical changes.

  2. CAD Design:
  

  • Orthodontic software (e.g., Exocad, 3D Systems Ortho System) models the retainer, incorporating:
  • Virtual adjustments (e.g., relining simulations, wire positioning).
  • Material selection (e.g., biocompatible resins like Dental SG or Formlabs Dental LT).
  • Fit validation via digital occlusion analysis.

  3. 3D Printing:
  

  • Stereolithography (SLA) or Digital Light Processing (DLP) printers cure liquid resin layer-by-layer to create the retainer base.
  • Post-processing includes:
  • UV curing for full polymerization.
  • Polishing to remove layer lines and improve aesthetics.
  • Fitting adjustments (e.g., trimming excess material, adding retention grooves).

  4. Quality Assurance:
  

  • Fit Testing: The retainer is tried in the patient’s mouth to verify occlusion and comfort.
  • Pressure Mapping: Some clinics use pressure-sensitive films to identify high-contact areas for further refinement.

  Clinical Applications:
  

  • Partial Retainers: 3D printing allows fabrication of segmented retainers (e.g., for single-tooth stabilization).
  • Hybrid Retainers: Combines printed plastic bases with traditional metal wires for enhanced retention.
  • Long-Term Adjustments: Digital records enable progressive adjustments over time without remaking the entire retainer.

  The FDA classifies dental 3D-printed retainers as Class II medical devices, requiring compliance with manufacturing standards (e.g., ISO 13485) for biocompatibility and mechanical properties.

  Role of Dental Impression Materials in Custom Retainer Molds

  Dental impression materials serve as the foundation for accurate retainer adjustments by capturing the current state of the patient’s dentition. The choice of material impacts precision, comfort, and workflow efficiency. Common options include:

  - Algin
  

  Preventive Measures to Prolong Retainer Fit and Longevity

  Maintaining the structural integrity and fit of a retainer requires a combination of diligent oral hygiene, proper handling, and awareness of lifestyle factors that contribute to wear. Retainers, whether fixed (bonded) or removable (essix, Hawley, or vacuum-formed), are susceptible to damage from improper care, environmental exposure, and suboptimal habits. Preventive measures focus on minimizing physical stress, chemical degradation, and bacterial buildup—all of which compromise the retainer’s effectiveness and lifespan. Adhering to a structured maintenance routine ensures the appliance remains functional, comfortable, and aligned with dental anatomy for extended periods.
  

  Routine Maintenance Schedule for Retainers

  A systematic approach to retainer care is essential for preserving its shape, clarity (for clear retainers), and fit. The frequency and methods of maintenance vary depending on the type of retainer, but general guidelines apply to most removable appliances. Below is a recommended schedule categorized by daily, weekly, and monthly tasks, along with their specific purposes.
  
  • Daily Maintenance
    • Brushing: Clean the retainer gently with a soft-bristled toothbrush and lukewarm water after each use. Avoid abrasive toothpastes or scrubbing pads, as they can create micro-scratches that harbor bacteria and stain the appliance. For removable retainers, use a separate brush dedicated solely to the retainer to prevent cross-contamination.
    • Rinsing: Rinse the retainer thoroughly with water after brushing to remove residual toothpaste and debris. This step is critical for clear retainers, as toothpaste can cause discoloration over time.
  • Weekly Maintenance
    • Soaking in Denture Cleaner: Submerge the retainer in a denture cleaning solution (e.g., effervescent tablets or enzymatic cleaners) for 15–30 minutes, as recommended by the manufacturer. This process removes plaque, bacteria, and food particles that brushing alone may miss. Avoid vinegar or hydrogen peroxide solutions, as they can weaken the retainer material over time.
    • Inspection for Damage: Visually inspect the retainer for cracks, warping, or loose wires (in Hawley retainers). Pay special attention to the edges and clasps, as these areas are prone to wear. Note any changes in fit or discomfort during wear.
  • Monthly Maintenance
    • Professional Check-Up: Schedule a dental visit to assess the retainer’s fit and condition. Dentists can identify early signs of misalignment, material degradation, or oral health issues (e.g., gum recession) that may affect the retainer’s functionality.
    • Deep Cleaning: Use a retainer-specific polishing cloth or a soft toothbrush with baking soda (sparingly) to remove surface stains. For clear retainers, avoid baking soda, as it can cause micro-abrasions that scatter light and reduce transparency.

  Impact of Dietary Habits on Retainer Longevity

  Dietary choices directly influence the physical condition of a retainer through mechanical stress, chemical exposure, and bacterial proliferation. Hard, sticky, or acidic foods can induce micro-fractures, discoloration, or material breakdown, while poor oral hygiene exacerbates these issues. Below are key dietary factors and their mitigating strategies.
  
  • Mechanical Damage from Hard Foods
    Retainers, particularly clear thermoplastic varieties, are vulnerable to cracking or breaking when exposed to excessive force. Foods such as:
    • Ice cubes
    • Hard candies (e.g., jawbreakers)
    • Popcorn kernels
    • Unpopped popcorn
    • Nuts with hard shells (e.g., walnuts, almonds)
    • Crusty bread or bagels
    should be avoided or consumed with caution. If chewing is necessary, remove the retainer first to prevent accidental damage.
  • Sticky and Sugary Foods
    Substances like caramel, chewing gum, and sticky candies adhere to retainers, promoting bacterial growth and plaque formation. Additionally, sugar residues react with oral bacteria to produce acids that erode the retainer material and demineralize teeth. Rinse the mouth and retainer immediately after consuming such foods.
  • Acidic and Staining Foods/Drinks
    Beverages such as coffee, tea, red wine, and sodas contain tannins or acids that cause discoloration or weaken the retainer’s polymer structure. Clear retainers, in particular, may develop a cloudy or yellowed appearance when exposed to these substances. To mitigate staining:
    • Rinse the retainer with water after consumption.
    • Use a straw for acidic drinks to minimize contact with the appliance.
    • Avoid drinking these beverages while wearing the retainer.
  • Temperature Extremes
    Exposing retainers to very hot or cold temperatures can cause warping or material contraction. Avoid:
    • Drinking excessively hot beverages (e.g., coffee, tea) while wearing the retainer.
    • Leaving the retainer in direct sunlight or near heating sources (e.g., car dashboards, radiators).

  Proper Retainer Storage Practices

  Improper storage accelerates retainer degradation through physical damage, bacterial growth, or material degradation. The choice of storage case, environmental conditions, and handling protocols play a critical role in preserving the retainer’s integrity. Below are evidence-based guidelines for optimal storage.
  
  • Selection of Storage Cases
    Retainer cases should be designed specifically for dental appliances to provide a snug, protective fit. Two primary materials are recommended:
    • Hard Cases: Made from plastic or acrylic, these offer superior protection against physical impacts and scratches. They are ideal for travel or active lifestyles but may not be as breathable as soft cases.
    • Soft Cases: Fabric-lined cases with foam padding reduce the risk of scratches and provide a more flexible fit. However, they are less durable and may not protect against drops or pressure. Soft cases are suitable for daily use at home.
    Avoid using:
    • Pill organizers or generic plastic containers, as they lack proper ventilation and may trap moisture.
    • Cases with rough interiors, which can scratch the retainer’s surface.
  • Environmental Considerations
    Store retainers in a cool, dry environment away from:
    • Direct sunlight, which causes UV-induced yellowing and material weakening.
    • High humidity or moisture-prone areas (e.g., bathrooms), as excess moisture promotes bacterial growth and mold.
    • Extreme temperatures (e.g., near ovens, freezers, or air conditioning vents).
    If traveling, keep the retainer in its case during transit to prevent accidental damage or loss.
  • Handling Protocols
    Always handle the retainer with clean, dry hands to avoid transferring oils, bacteria, or lotions onto the appliance. Avoid placing the retainer on:
    • Unclean surfaces (e.g., napkins, countertops, or shared towels).
    • Paper towels or tissues, which can leave lint or abrasive fibers.
    When not in use, store the retainer in its case immediately to prevent contamination or physical damage.

  Signs of Poor Oral Hygiene Affecting Retainer Fit

  Oral hygiene practices directly influence the fit and longevity of retainers by affecting gum health, plaque accumulation, and bacterial colonization. Poor hygiene leads to gum inflammation, calculus formation, and changes in dental anatomy, all of which necessitate retainer adjustments or replacements. Below are key indicators of compromised oral hygiene and their implications for retainer fit.
  
  • Plaque and Calculus Buildup
    Plaque, a sticky biofilm of bacteria, adheres to teeth and retainers, producing acids that erode enamel and degrade retainer material. Over time, calculus (hardened plaque) forms, altering the contours of teeth and gums. This buildup:

    Alternative Solutions When Adjustments Aren’t Possible

    When retainer damage reaches a point where adjustments—whether DIY or professional—are no longer feasible, patients must evaluate alternative solutions to maintain orthodontic stability. Severe warping, irreversible material degradation, or structural compromise (e.g., broken hinges in Hawley retainers) often render traditional retainers unusable. In such cases, temporary alternatives or long-term replacements become necessary, each with distinct advantages and limitations. Understanding these options allows patients to make informed decisions based on cost, convenience, and orthodontic effectiveness.
    

    Scenarios Rendering Retainers Unadjustable

    Retainers may become irreparable due to:
    
    • Material fatigue: Thermoplastic retainers lose elasticity over time, becoming brittle or permanently deformed after repeated heating/cooling cycles.
    • Physical damage: Cracks, fractures, or delamination in acrylic or wire-reinforced retainers prevent safe modification.
    • Irreversible warping: Excessive exposure to heat (e.g., microwaving, dishwashers) or mechanical stress (e.g., chewing ice) distorts the retainer’s fit beyond correction.
    • Component failure: Detachable retainers with broken clasps or lost wires cannot be salvaged through adjustments.

    Key consideration: Even minor damage can compromise retention efficacy, increasing relapse risk. Patients should discontinue use of severely damaged retainers to avoid exacerbating misalignment.
    

    Comparison: New Retainer vs. Temporary Alternatives

    When adjustments are impossible, patients face two primary pathways: acquiring a new retainer or using a temporary solution. Each option carries trade-offs in terms of cost, durability, and orthodontic precision.
    

    Criteria	New Retainer (Custom or Replacement)	Temporary Alternative (Essix/Night Guard)
    Cost	Moderate to high ($150–$600+ for custom fabrication; insurance may cover partial costs).	Low to moderate ($50–$300 for over-the-counter or lab-made Essix retainers; night guards $100–$400).
    Precision	High: Fabricated from dental impressions, ensuring exact fit and alignment.	Moderate: Pre-formed or digitally scanned retainers may not match original contours perfectly.
    Durability	Long-term: Designed for continuous wear (6 months–years) with professional materials.	Short-term: Temporary solutions degrade faster (3–12 months) and require frequent replacements.
    Convenience	Requires orthodontist visit (1–2 weeks for fabrication).	Immediate access via mail-order services (e.g., ClearCorrect, SmileDirectClub) or dental labs.
    Orthodontic Risk	Minimal: Properly fitted retainers prevent relapse.	Moderate: Poor fit increases relapse risk; night guards lack retention features.

    Recommendation: Temporary alternatives are suitable for short-term use (e.g., travel, awaiting a new retainer), but long-term reliance may lead to alignment regression. Patients should prioritize a custom retainer if budget and timeline permit.
    

    Process for Creating a Custom Retainer from Scratch

    Fabricating a new retainer involves a structured workflow from consultation to delivery, ensuring accuracy and patient comfort. The process typically spans 1–3 weeks, depending on the method (in-office vs. lab-based).

    1. Initial Consultation and Impression
    

    • The orthodontist evaluates tooth alignment and assesses whether a new retainer is necessary.
    • Digital scanning (iTero, 3Shape) or traditional alginate impressions are taken to capture current tooth positions.
    • For severe cases, a provisional retainer (e.g., Essix) may be provided temporarily.

    2. Material Selection and Design
    

    • Thermoplastic (Essix): Preferred for clear, removable retainers; custom-molded from a single block of polymer.
    • Acrylic (Vacuum-formed): Offers durability but may require wire reinforcement for stability.
    • Wire-reinforced (Hawley): Combines acrylic with stainless steel wire for added retention; ideal for patients with complex bite issues.
    • Composite materials: Used in hybrid retainers for enhanced strength without bulk.

    3. Fabrication Methods
    

    • Computer-aided design (CAD): Digital models are adjusted to correct minor misalignments or accommodate tooth movement.
    • Thermforming: Heated thermoplastic is vacuum-formed over the model to create a precise fit.
    • 3D printing: Emerging technology for rapid prototyping, though less common for retainers due to material limitations.

    4. Fitting and Adjustments
    

    • The retainer is delivered for a test fit, where the orthodontist checks for:
    • Proper occlusal contact (no premature biting).
    • Even pressure distribution across teeth.
    • Comfort during speech and eating.
    • Minor adjustments (e.g., trimming acrylic edges) are made on-site.

    5. Follow-Up and Maintenance
    

    • Patients receive instructions on cleaning (daily brushing with retainer tablets) and storage (ventilated case to prevent warping).
    • Scheduled check-ups (every 6–12 months) ensure the retainer remains effective.

    blockquote
    "A well-fitted retainer should feel snug but not painful. Discomfort during the first few days is normal, but persistent pressure indicates an improper fit requiring professional adjustment."

    Aligner Therapy as a Long-Term Retainer Alternative

    For patients whose retainers are chronically damaged or ineffective, aligner therapy (e.g., Invisalign, ClearCorrect) serves as a proactive long-term solution. Unlike traditional retainers, aligners are designed for active correction while maintaining retention, making them ideal for:
    
    • Patients with relapse-prone teeth (e.g., canines, premolars).
    • Individuals who frequently lose or damage retainers.
    • Those seeking discreet, removable orthodontics without metal wires.

    Process Overview:
    1. Digital Assessment: Intraoral scans or photos document current alignment, including any post-treatment shifts.
    2. Treatment Planning: A series of custom aligners (typically 10–20 sets) are fabricated to gradually realign teeth.
    3. Wear Schedule: Aligners are worn 20–22 hours/day, replaced every 1–2 weeks.
    4. Retention Phase: Post-alignment, patients transition to a long-term retainer (often a permanent bonded wire or removable Essix) to stabilize results.

    Advantages:
    

    • Predictable outcomes: Aligners follow a precise, data-driven progression.
    • Convenience: No wires or brackets; easy to remove for eating/cleaning.
    • Dual functionality: Corrects minor misalignments while serving as a retainer.

    Limitations:
    

    • Cost: Higher upfront investment ($3,000–$7,000) compared to retainers ($200–$600).
    • Compliance-dependent: Requires strict adherence to wear schedules.
    • Not suitable for severe relapse: Best for maintenance, not major corrections.

    blockquote
    "Aligners are most effective when used as part of a comprehensive retention strategy. Patients should combine them with nighttime wear of a traditional retainer for optimal stability."

    Materials in Modern Retainers and Their Suitability

    The choice of material dictates a retainer’s durability, adjustability, and comfort. Advances in orthodontic materials have expanded options beyond traditional acrylic and wire, each with specific use cases.
    

    Material	Properties	Adjustment Suitability	Best For
    Thermoplastic (Essix)	Lightweight, transparent, and flexible. Vacuum-formed from polyethylene terephthalate glycol (PETG). Resistant to staining but prone to warping if exposed to heat.	< Restoring a retainer’s fit is a balance between immediate solutions and long-term sustainability. While DIY adjustments offer temporary relief, professional methods—such as heat molding or digital scanning—ensure precision and durability. Preventive measures, including rigorous cleaning routines and mindful dietary choices, are equally vital in prolonging usability. For cases where repair is unfeasible, alternatives like custom retainers or aligner therapy provide viable pathways. Ultimately, proactive maintenance and informed decision-making are the cornerstones of preserving dental alignment and investment in orthodontic care. FAQ How can I fix my retainer if it’s too tight and hurting my teeth? Soak your retainer in warm (not hot) water for 5–10 minutes to make the plastic more pliable, then gently press it back into place with your fingers. Avoid force—if it still hurts, see your orthodontist to adjust it or check for warping. Never cut or bend the retainer yourself, as this can damage it. What should I do if my retainer keeps falling out because it doesn’t fit anymore? Try cleaning it thoroughly with retainer tablets or mild soap to remove plaque buildup, which can distort the shape. If that doesn’t work, ask your orthodontist for an adjustment or a replacement—retainers lose their fit over time, especially after years of use. Wearing it consistently (as prescribed) helps maintain its shape longer. Can I use boiling water to reshape my retainer at home? No, boiling water can warp or melt the plastic, ruining the retainer permanently. Instead, use lukewarm water (never hotter than you can comfortably touch) and soak it for short periods. If it’s severely warped, boiling won’t fix it—see your dentist or orthodontist for professional help. How often should I check if my retainer still fits properly? Check your retainer’s fit every 3–6 months, especially if you notice discomfort, gaps, or difficulty keeping it in place. Teeth can shift gradually even after braces, so regular adjustments may be needed. If it’s been over 5 years since you got it, replacement is often the best solution. What are the signs that my retainer needs to be replaced instead of fixed? Cracks, broken wires, extreme warping, or a retainer that no longer covers your teeth properly are clear signs it’s beyond repair. If soaking and cleaning don’t restore the fit, or if you experience pain/soreness that doesn’t improve, schedule an appointment with your orthodontist for a new one. Ignoring these signs can lead to teeth shifting back.