resources  |  oral health  |  Good oral health starts with straight teeth

Good oral health starts with straight teeth

September 2026

Straight teeth significantly improve oral health by making it easier to clean your mouth, reducing gum disease risk, and preventing tooth loss. Nearly 60% of adults 65+ have periodontitis, a serious gum infection that damages the soft tissue and bone supporting your teeth.1 And approximately 13% have experienced complete tooth loss (edentulism).2 Proper tooth alignment may help support better long-term oral health.

While many people think orthodontic treatment is only for children and teenagers, the truth is that good oral health starts with straight teeth at any age. Maintaining good oral health is essential for your overall well-being. Achieving proper alignment can lead to healthier gums, better oral hygiene, and fewer costly dental procedures—all critical factors for maintaining quality of life.

Quick Summary:

  • Straight teeth improve oral hygiene and make cleaning easier

  • Proper alignment reduces risk of gum disease and tooth loss

  • Misaligned teeth can impact overall health and function

  • Invisalign® aligners offer a removable solution for adults

  • Early alignment can reduce long-term dental costs

How do straight teeth improve oral hygiene?

Straight teeth make oral hygiene significantly easier by eliminating hard-to-reach spaces where plaque and bacteria accumulate. When teeth are properly aligned, brushing and flossing become more effective, reducing your risk of cavities and gum disease.

Maintaining a clean mouth is essential for your health, and it's much easier when your teeth are properly aligned. Non-optimal tooth positioning often involves overlapping and crowded teeth making it difficult to remove plaque and bacteria, which might compromise oral hygiene.3 When teeth are crowded or crooked, there are more hiding places for food particles and plaque to accumulate, which can be especially problematic for older adults who may have dexterity issues or arthritis that makes thorough brushing and flossing more difficult.

Moving teeth with solutions such as the Invisalign® system could improve tooth positioning in order to correct/treat overlapping and crowded teeth and to facilitate the removal of plaque and bacteria, which might compromise oral hygiene.3 By straightening your teeth, you eliminate these hard-to-reach areas, making your daily brushing and flossing routine much more effective. There is a positive correlation between tooth alignment and improved oral hygiene, facilitating a preventative approach.4 95% of dental hygienists agree that most patients have less visible plaque in patients undergoing Invisalign treatment than patients undergoing fixed appliance treatment.5

Can straight teeth prevent gum disease and tooth loss?

Yes, straight teeth significantly reduce your risk of gum disease and tooth loss. Nearly 60% of adults 65+ have periodontal disease, but proper tooth alignment helps gums fit more securely around teeth, creating a stronger defense against infection and bone loss that leads to tooth loss.1

The health of your gums is closely tied to the alignment of your teeth, making proper alignment essential for long-term oral health. Crowding and rotated teeth have been associated with periodontal diseases such as gingival bleeding, gingival enlargement, and chronic periodontitis.6 Proper tooth alignment can be a crucial defense against these conditions. Research shows that adolescents with severe misalignment face a 51% greater probability of developing dental caries compared to those with proper alignment.7 When teeth are properly aligned, the gums fit more securely around them, providing a stronger defense against periodontal problems that can lead to tooth loss.

Not correcting misalignment has a well-established association with the development of periodontal disease.8 Treating misalignment can prevent gingival recession and even contribute to its treatment.9 This means that orthodontic treatment is not just about straightening teeth; it's a crucial step in maintaining long-term gum health. Treating misalignment would benefit from including orthodontic intervention, helping to promote better oral hygiene and restore a healthy bite.8,6

What are the overall health benefits of straight teeth?

The impact of straight teeth extends well beyond your mouth. Poor oral health and misaligned teeth can lead to serious consequences, including tooth loss and advanced periodontal disease.1,2 These disparities underscore how critical preventive measures like proper tooth alignment are for long-term health.

Misalignment is a common health problem which can impact oral function, oral health, aesthetics and overall well-being.10 It's not just about appearance—it's about maintaining the ability to eat comfortably, speak clearly, and preserve your natural teeth for as long as possible. About one-third of adults exhibit severe misalignment that warrants orthodontic treatment,11 yet addressing these alignment issues can significantly improve long-term oral health outcomes.

Misalignment can be the underlying cause of jaw pain, headaches, tooth abrasion, dental caries and periodontitis. The condition is also implicated in difficulties surrounding mastication, swallowing, speaking and breathing.10 Correcting tooth position enhances oral health,12 which in turn supports your overall well-being. As the Mayo Clinic notes, oral health offers clues about your overall health, and problems in your mouth can affect the rest of your body.13

Why are Invisalign clear aligners the best choice for orthodontic treatment?

Invisalign clear aligners are ideal because they're removable, allowing you to brush and floss normally around existing dental work like bridges and crowns. Unlike traditional braces, you can maintain good oral hygiene throughout treatment without struggling with wires and brackets—critical for anyone concerned about maintaining optimal oral health.

When considering orthodontic treatment, the method you choose can significantly impact your oral hygiene during the process. Invisalign treatment is better oral hygiene when compared to patients in treatment with fixed orthodontic appliances.14 Because Invisalign clear aligners are removable, you can brush and floss normally, without navigating around wires and brackets—a significant advantage if you have dental work, bridges, or other considerations.

For people with existing periodontal concerns, the evidence is particularly encouraging. Clinical studies of adults whose periodontal disease has been adequately stabilized show that orthodontic treatment yields measurable improvements: measurable improvements in how securely gums grip around teeth, healthier space between gums and teeth, and greater tooth stability—with patients who received both gum treatment and teeth straightening doing significantly better than those who received gum treatment alone.15 In clinical trials, adding orthodontic treatment to gum care made patients significantly more likely to achieve a successful outcome.16 These improvements remain stable over long-term follow-up periods up to 10 years, demonstrating the durability of treatment outcomes.17

Invisalign treatment offers additional practical benefits: no dietary restrictions, easier cleaning around existing dental work, and a virtually invisible appearance that fits seamlessly into your professional and social life. This makes Invisalign treatment an excellent choice for those who want to prioritize their oral health while straightening their teeth at any age.

Can straight teeth reduce dental costs?

Yes, straight teeth can save you money in future dental procedures. By preventing gum disease, reducing cavity risk, and eliminating emergency dental visits, proper tooth alignment protects both your oral health and your budget.

Investing in straight teeth now can help you avoid more extensive and expensive dental work in the future. Timely and suitable intervention acts as a preventative measure against the onset of systemic conditions and allows for the proper development of the mouth, face, and jaw.18 By addressing alignment issues, you reduce the risk of severe decay, gum disease, abnormal wear on your teeth, and potential tooth loss—all of which become more costly and complex to treat over time.

Additionally, orthodontic treatment with Invisalign clear aligners can be more convenient. Emergency visits with Invisalign clear aligners occur almost 80% less frequently than with braces.19 This means fewer unexpected trips to the orthodontist and less disruption to your daily life.

Frequently Asked Questions (FAQ)

Am I too old for orthodontic treatment?

No, you're never too old to improve your oral health. Many adults in their 50s, 60s, 70s, and beyond successfully complete orthodontic treatment. Clinical studies have demonstrated positive outcomes in patients up to age 62 and beyond, with significant improvements in:

  • Plaque reduction and easier cleaning

  • Gum health and reduced inflammation

  • Clinical attachment level gains (approximately 0.86 mm) - Improved gum attachment to teeth15

  • Long-term stability (up to 10 years follow-up)17

Proper oral health is essential to overall health and well-being.1 Straight teeth are easier to clean, which helps prevent the buildup of plaque and bacteria, reducing the risk of cavities and gum disease.

Can straightening my teeth help prevent tooth loss?

Yes, straightening teeth significantly reduces tooth loss risk by preventing gum disease, the leading cause of tooth loss in adults. Key benefits include:

  • Reduced bacteria traps: Eliminates spaces where plaque accumulates

  • Better gum fit: Gums fit more securely around aligned teeth

  • Lower inflammation: Easier to maintain healthy, disease-free gums

  • Preserved bone: Prevents bone loss that leads to tooth loss

With approximately 13% of adults ages 65+ experiencing complete tooth loss,2 maintaining good oral health—including proper tooth alignment—may help support long-term preservation of your natural teeth.

Why are Invisalign clear aligners a good choice for adults?

Invisalign clear aligners offer unique advantages:

  • Removable design: Brush and floss normally around existing dental work

  • No dietary restrictions: Eat whatever you want

  • Virtually invisible: Maintain professional appearance

  • Comfortable: No wires or brackets to soft tissue

  • Fewer emergencies: 80% fewer unexpected dental visits than traditional braces19

The removable design makes it especially easy to maintain oral hygiene if you have existing dental work, bridges, or implants—critical for anyone concerned about maintaining optimal oral health.

Is straightening teeth worth the investment?

Yes, orthodontic treatment provides substantial health and financial benefits. The investment typically pays for itself by helping you avoid more costly procedures. Key financial benefits include:

  • Prevent expensive treatments: Avoid costly gum disease therapy, tooth replacements, and jaw treatments

  • Reduce emergency visits: 80% fewer emergency dental visits with Invisalign clear aligners (treatment)19

  • Lower long-term costs: Easier maintenance reduces cavity and periodontal treatment needs

  • Improved quality of life: Better eating, speaking, and confidence

Straightening teeth is not just a cosmetic decision; it provides significant health benefits by correcting misalignment significantly reduces the risk of periodontal disease and tooth decay by eliminating areas where bacteria and plaque accumulate.6 Clinical research demonstrates powerful quality-of-life improvements: Patients who completed orthodontic treatment reported oral health impact profile (OHIP) scores of just 3.1, compared to 15.1 for those still waiting for treatment—representing an approximately 79% reduction in negative oral health impacts.20 Additionally, studies show orthodontic treatment can improve both periodontal health and patient satisfaction across all adult age groups, with self-esteem scores increase and improvements in social.21

Take the next step toward a healthier smile at any age

Good oral health starts with straight teeth, and it's never too late to invest in your well-being. From healthier gums to better oral hygiene and fewer costly dental procedures, straightening your teeth can help you maintain your natural smile and overall health for years to come. Don't let age be a barrier to better oral health. Contact your local dentists to see if Invisalign treatment is right for you and discover how modern orthodontic solutions can work with your lifestyle and existing dental work.

Results may vary. This content is provided for general informational and educational purposes only and is not medical, dental, or orthodontic advice. Align Technology does not practice dentistry or medicine or provide healthcare services. Consult your orthodontist, dentist, or other qualified healthcare professional to determine whether Invisalign treatment is right for you.


Disclaimer: The information provided on this website is for educational and informational purposes only and does not constitute medical advice. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment. You should consult your healthcare provider regarding any dental or medical condition and not disregard or delay seeking advice based on information found here. Individual experiences with treatments, such as Invisalign, may vary. Comparative statements are based on cited studies and are not intended to imply clinical superiority. Always seek professional advice for your specific needs.

Wonder if Invisalign treatment is right for you?

Take the Invisalign Smile Quiz
  1. National Institute of Dental and Craniofacial Research (NIDCR). "Periodontal Disease in Adults (Age 30 or Older)." https://www.nidcr.nih.gov/research/data-statistics/periodontal-disease/adults. Accessed 04/27/26.
  2. Centers for Disease Control and Prevention (CDC). "Products - Data Briefs - Number 368 - June 2020." https://www.cdc.gov/nchs/products/databriefs/db368.htm. Accessed 04/27/26.
  3. Meynardi F, Pasqualini ME, Rossi F, et al. Correlation between dysfunctional occlusion and periodontal bacterial profile. J Biol Regul Homeost Agents. 2016;30(2 Suppl 1):115-121. Implantology and Maxillofacial Surgery. Malocclusion: Causes, Symptoms, Treatments and Consequences. Maxillo-Faciale Clinique MFML. Published April 6, 2021. Accessed August 30, 2023. https://cliniquemaxillo.com/en/blogue/malocclusion-treatments-and-consequences/
  4. World Health Organization. Oral health. Published March 14, 2023. Accessed August 30, 2023. https://www.who.int/news-room/fact-sheets/detail/oral-health. Nesse W, Dijkstra PU, Abbas F, et al. Increased prevalence of cardiovascular and autoimmune diseases in periodontitis patients: a cross-sectional study. JPeriodontol. 2010;81(11):1622-1628.
  5. Percentage of dental hygienists that primarily work in a practice offering the Invisalign System who ‘agree’ or ‘strongly agree’ to the question: During Invisalign clear aligner treatment, most patients have less plaque compared to patients undergoing fixed appliance treatment. (n=135). Data on file at Align Technology, as of April 5, 2022.
  6. Gusmao ES, Coelho R de S, Cimoes R. Association between malpositioned teeth and periodontal disease. Dental Press J Orthod. 2011;16(4):87-94.
  7. Translational Pediatrics. "Analysis of the correlation between malocclusion, bad oral habits, and the caries rate in adolescents." https://tp.amegroups.org/article/view/86024/html. Accessed 04/27/26.
  8. Bollen AM. Effects of malocclusions and orthodontics on periodontal health: evidence from a systematic review. J Dent Educ. 2008;72(8):912-918.
  9. Jati AS, Furquim LZ, Consolaro A. Gingival recession: its causes and types, and the importance of orthodontic treatment. Dent Press J Orthod. 2016;21(3):18-29.
  10. World Dental Federation F. Malocclusion in orthodontics and oral health. Int Dent J. 2020;70(1):11-12. Sonnesen L, Bakke M, Solow B. Malocclusion traits and symptoms and signs of temporomandibular disorders in children with severe malocclusion. Eur J Orthod. 1998;20(5):543-559. Roberts-Harry D, Sandy J. Orthodontics. Part 1: Who needs orthodontics? BrDent J. 2003;195(8):433-437.
  11. PMC - NIH. "Malocclusion severity and its associations with oral health-related quality of life in an adult population." https://pmc.ncbi.nlm.nih.gov/articles/PMC9380859/. Accessed 04/27/26.
  12. Ferrando-Magraner E, Garcia-Sanz V, Bellot-Arcis C, et al. Oral health-related quality of life of adolescents after orthodontic treatment. A systematic review. J Clin Exp Dent. 2019;11(2):e194-e202. Feliu JL. Long-term benefits of orthodontic treatment on oral hygiene. Am J Orthod. 1982;82(6):473-477. Tondelli PM. Orthodontic treatment as an adjunct to periodontal therapy. Dent Press J Orthod. 2019;24(4):80-92.
  13. Mayo Clinic. "Oral health: A window to your overall health." https://www.mayoclinic.org/healthy-lifestyle/adult-health/in-depth/dental/art-20047475. Accessed 04/15/26.
  14. Based on significantly lower Plaque Index (PI), probing depth (PD), and Bleeding on Probing (BOP) of the upper right first molar and upper left central incisors at initial, 3,6, and 12 months as well as full month plaque score (FMPS) and full mouth bleeding score (FMBS) score at initial and 12 months and better higher compliance with oral hygiene on 50 teenager patients (age 10-18, (25 invisalign treatment, 25 fixed appliances). Abbate GM, et al. Periodontal health in teenagers treated with removable aligners and fixed orthodontic appliances. J Orofac Orthop 2015;76:240-50. Based on lower modified sulcus bleeding index (SBI) and Plaque Index (PI) with average treatment time of 12.9 \u00b1 7.2 month (fixed appliances) 12.6 \u00b1 7.4 months (Invisalign treatment) on 100 patients (age 11-62, 50 fixed appliances, 50 Invisalign treatment). Azaripour A, et al. Braces versus Invisalign®: gingival parameters and patients' satisfaction during treatment: a cross-sectional study. BMC Oral Health 2015;15:69. Data on File at Align Technology, as of June 16, 2023
  15. Diabetic Studies. "Long-Term Stability And Periodontal Health." https://diabeticstudies.org/index.php/RDS/article/view/1678/1492. Accessed 04/27/26.
  16. American Journal of Translational Research. "Effect of orthodontic treatment on periodontal health and masticatory function." https://e-century.us/files/ajtr/17/8/ajtr0165425.pdf. Accessed 04/27/26.
  17. Nature. "Expert consensus on orthodontic treatment of patients with periodontal disease." https://www.nature.com/articles/s41368-025-00356-w. Accessed 04/27/26.
  18. Brkanovi\u0107 S, Lapter Varga M, Me\u0161trovi\u0107 S. Knowledge and Attitude towards Orthodontic Treatment among Non-Orthodontic Specialists: An Online Survey in Croatia. Dent J. 2022;10(1):5. Feliu JL. Long-term benefits of orthodontic treatment on oral hygiene. Am J Orthod. 1982;82(6):473-477. Bock NC, Saffar M, Hudel H, et al. Long-term effects of Class II orthodontic treatment on oral health. J Orofac Orthop. 2018;79(2):96-108.
  19. Data on File at Align Technology, as of July 12 2017: *Based on a global claims survey by Actionable Research of Invisalign providers, respondents were asked the following question: In what percent of cases do patients require an emergency visit? (Global respondents N= 898)
  20. Pocket Dentistry. "How does orthodontic treatment affect young adults' oral health-related quality of life?" https://pocketdentistry.com/how-does-orthodontic-treatment-affect-young-adults-oral-health-related-quality-of-life/. Accessed 04/27/26.
  21. American Association of Orthodontists (AAO). "Research Reveals Connection Between Orthodontic Treatment and Improved Health Outcomes." https://aaoinfo.org/whats-trending/research-reveals-connection-between-orthodontic-treatment-and-improved-health-outcomes/. Accessed 04/27/26.