Clear aligners have become a familiar part of how orthodontic treatment is delivered, and Invisalign is the name most people recognize. But it’s not the only clear aligner system available, and it’s not always the one that’s recommended. Spark is a newer system that’s gained traction among orthodontists in recent years, and the two are worth comparing on their own terms rather than assuming one is simply a knockoff of the other.
At Brookhaven Orthodontics, Dr. Cox offers Spark clear aligners as the primary clear aligner option. Here’s what distinguishes the two systems and why that distinction matters in practice.
The Basics: How Both Systems Work
Both Spark and Invisalign work through the same general principle. A series of custom-fabricated clear plastic trays is worn over the teeth, with each tray in the series built to move the teeth a small, precise amount. As the patient progresses through the trays, the teeth shift gradually toward the planned final position. Both systems use digital planning software to map out the full sequence of movements before the first tray is ever made.
The core mechanics are the same. Where the systems differ is in the materials used, the manufacturing process, and specific design features that affect clarity, fit, and how the aligner interacts with the teeth.
Material and Clarity
Spark aligners are made from a proprietary material called TruGEN, developed by Ormco. The material is designed to maintain clarity better over time compared to older aligner plastics. Aligners can yellow or become dull with prolonged exposure to food, drinks, and the general wear of daily use. TruGEN is formulated specifically to resist staining and maintain optical clarity through the wear period of each tray.
Invisalign uses SmartTrack material, which was developed specifically for the Invisalign system and is designed for consistent force delivery and fit. SmartTrack is well-established and has a long track record in clinical use.
In practical terms, both materials are transparent and low-profile. The difference in long-term clarity between the two may be more relevant to patients who drink coffee or tea regularly throughout the day, since Spark’s material claims more stain resistance in those conditions.
Fit and Edge Finishing
One specific design difference worth noting is the edge of the aligner along the gumline. Spark aligners use a scalloped edge that follows the natural contour of the gum tissue rather than cutting straight across. The stated advantage is that this reduces gum irritation from the aligner edge and may improve overall comfort, particularly at the beginning of a new tray.
Invisalign aligners have their own edge design that has been refined over many iterations of the product. Both systems are designed with soft tissue comfort in mind. Individual patients may respond differently to each, and there’s no universal rule about which feels better.
Clinical Differences and Planning
Both systems use digital scanning to create the treatment plan, and both work with 3D planning software that allows the orthodontist to map out each tooth movement in sequence. The specific software and the level of control the orthodontist has over the treatment plan differ between systems.
One relevant point for patients: both systems require orthodontic expertise to use effectively. The quality of the treatment plan, the decisions about tooth movement sequencing, attachments, and refinements, is determined by the orthodontist, not the aligner brand. A well-planned Spark case and a well-planned Invisalign case both produce good outcomes. A poorly planned case with either system produces problems. The provider matters as much as the product.
Dr. Cox has chosen to offer Spark as the clear aligner system at Brookhaven Orthodontics based on clinical experience with the material and the planning tools. You can learn more about Spark clear aligners in Brookhaven and about the full range of clear aligner options available at the practice.
What Both Systems Share
It’s worth being clear about what doesn’t differ between the two:
Both require 20 to 22 hours of daily wear. Both are removed for eating and drinking anything other than water. Both involve regular appointments with the Brookhaven orthodontist & Johns Creek Orthodontist, typically every six to eight weeks, to monitor progress. Both use attachments, small tooth-coloured composite shapes bonded to specific teeth, to enable more complex tooth movements. Both require retainers after active treatment is complete to maintain the result.
For patients deciding between clear aligners and braces, those shared requirements are often the more relevant consideration. For patients specifically comparing clear aligner brands, the material properties, edge design, and the specific experience of the treating orthodontist with each system are the meaningful variables.
Which One Is Right for You?
The straightforward answer is that the consultation determines which direction makes sense. At Brookhaven Orthodontics, Dr. Cox assesses each patient’s case individually before recommending a treatment approach. Clear aligners are appropriate for a wide range of cases, including mild, moderate, and some complex presentations, but not for every patient. Cases involving significant bite correction, severe skeletal discrepancies, or specific tooth movements may be better suited to metal braces or clear ceramic braces.
The consultation is complimentary; no referral is required, and the team at both locations is available to answer questions before you commit to anything.
Brookhaven Orthodontics | Schedule Your Consultation
Ready to find out which treatment fits your case? Brookhaven: 804 Town Blvd., Suite A2000, Atlanta | Johns Creek: 3440 Old Alabama Rd., Suite 200. Call or text 404-343-0677. No referral needed, and interest-free payment options are available.
