Clear aligners, often referred to as “invisible braces,” or invisible aligners have transformed modern orthodontics by offering a more aesthetic and removable alternative to conventional fixed appliances. Their increasing popularity has led to the emergence of multiple brands and treatment options, making it important for patients and clinicians to understand how to choose the most appropriate system.
Scientific evidence suggests that clear aligners and conventional fixed appliances can achieve comparable outcomes in mild to moderate orthodontic cases. 1,2
Studies published in orthodontic literature indicate:
Similar effectiveness in alignment and spacing correction
Comparable treatment outcomes for non-complex malocclusions
Differences may arise in more complex movements such as root torque and severe rotations
Therefore, case selection remains a critical factor in determining whether aligners are appropriate.
Aligners are most suitable for:
Mild to moderate crowding
Spacing issues
Minor bite corrections
Complex cases involving:
Severe malocclusion
Skeletal discrepancies
Significant rotations
may still require fixed orthodontic appliances or hybrid approaches.
Modern aligner systems rely heavily on digital tools such as:
3D intraoral scanning
Computer-aided AI treatment planning
Simulation of tooth movement
The accuracy of these technologies plays a major role in treatment outcomes.
Unlike braces, aligners are removable. Their success depends on:
Wearing aligners for 20–22 hours per day
Adhering to the prescribed schedule
Poor compliance can significantly affect results; therefore aligners are not suggested for children since noncompliance can be an issue.
Different aligner systems use varying materials and force delivery mechanisms. Clear aligners are made of thin, transparent, thermoplastic trays, customised for patients.
Key variables include:
Thickness and flexibility of aligners (varies from 0.5 mm to 1mm)
Force application patterns
Use of attachments or auxiliaries
These factors influence the efficiency of tooth movement.
Treatment duration may vary depending on:
Complexity of the case
Patient compliance
Type of aligner system used
Costs can also differ widely between brands and providers.
The experience and training of the treating orthodontist remain critical. Even with advanced technology, treatment outcomes depend significantly on clinical judgment and planning.
Individual assessment and follow up is advised for better results.
Several aligner systems are currently available globally and in India. Some of the widely recognized brands include:
Invisalign – This is the first brand who brought clear aligners into market. One of the most established systems with extensive clinical research and global presence.
Illusion- Indian brand based of Mumbai, presence in 30+ countries
SureSmile Aligners – Emphasizes digital precision and customization
Smilelign – Used in various international markets
Indian brands (e.g., Toothsi, Flash, Snazzy) – Increasingly popular due to affordability and accessibility
Each system differs in:
Technology used
Material composition
Cost structure
Clinical support
Aesthetic and nearly invisible, best option for adults who prefer to do the orthodontic treatment discreetly.
Removable for eating and oral hygiene.
Reduced risk of plaque accumulation compared to fixed braces
Increased comfort with fewer soft tissue injuries
Requires strict patient compliance
May be less effective in complex cases
Attachments and refinements may still be needed
Not entirely invisible in all cases
Choosing the right aligner treatment involves evaluating multiple factors, including case complexity, technology, patient compliance, and clinician expertise. While aligners offer a modern and convenient orthodontic solution, their success depends on appropriate case selection and adherence to treatment protocols.
References
Alam, Mohammad K., Mohammad Y. Hajeer, Miad A. Alahmed, Sadeem M. Alrubayan, and Maram F. Almasri. “A Comparative Study on the Efficiency of Clear Aligners Versus Conventional Braces in Adult Orthodontic Patients.” Journal of Pharmacy and Bioallied Sciences 16, Suppl 4 (2024): S3637–S3639. https://doi.org/10.4103/jpbs.jpbs_1161_24.
Cengiz, Saniye Merve, and Merve Goymen. “The Effectiveness of Orthodontic Treatment with Clear Aligners in Different Thicknesses.” Scientific Reports 15 (2025): 3958. https://doi.org/10.1038/s41598-025-86345-9.
Ke, Yunyan, Yanfei Zhu, and Min Zhu. “A Comparison of Treatment Effectiveness Between Clear Aligner and Fixed Appliance Therapies.” BMC Oral Health 19 (2019). https://doi.org/10.1186/s12903-018-0695-z.
Baneshi, Maryam, Lucy O’Malley, Ahmed El-Angbawi, and Badri Thiruvenkatachari. “Effectiveness of Clear Orthodontic Aligners in Correcting Malocclusions: A Systematic Review and Meta-Analysis.” Journal of Evidence-Based Dental Practice, published online December 16, 2024. https://doi.org/10.1016/j.jebdp.2024.102081
