Choosing between Spark Aligners and Invisalign can feel like a big decision. Both promise straighter teeth and a confident smile, but they have their own perks and downsides. Let’s break it down so you know exactly what you’re getting into.
What Are Spark Aligners and How Do They Work?
Spark Aligners are clear aligners designed to straighten teeth. They’re made with TruGen material, a patented plastic known for its comfort, stain resistance, and durability. Spark’s aligners are also hand-trimmed with polished edges, making them gentler on your gums compared to some alternatives.
The process is straightforward:
- You’ll start with an initial consultation to assess your teeth and create a treatment plan.
- Your aligners are made using advanced 3D imaging to fit snugly over your teeth.
- By wearing the removable aligners for 22 hours per day, your teeth gradually shift into place over time.
Spark aligners are best for patients with mild to moderate misalignment or bite issues. They work well for busy adults or teens who want something nearly invisible for their teeth straightening journey.
How Much Do They Cost?
The cost of Spark Aligners depends on the complexity of your case and your orthodontist. Typically, you’re looking at around £2,500 to £4,500. They’re often slightly cheaper than Invisalign, which could be a big selling point for some.
Check out this article to read more about the costs of Spark Aligners.

Pros and Cons
Pros
- Nearly invisible: Perfect for those who don’t want their treatment to stand out.
- Gentler on gums: Thanks to hand-trimmed and polished edges.
- Stain resistance: Spark’s TruGen material resists discolouration better than some alternatives.
- Lower cost: Often cheaper than Invisalign, making it a more budget-friendly option.
- Comfortable fit: Designed to feel smooth and easy to wear.
Cons
- Newer product: Spark doesn’t have the same track record as Invisalign, which has been around longer.
- Limited availability: Not all dentists and orthodontists offer Spark.
- Limitations: May not be able to address severe cases of misalignment or bite issues.
What Is Invisalign and How Does It Work?
Invisalign is the OG of clear aligners, with over 20 years of experience in the game. Made from SmartTrack material, these aligners are designed to move teeth more predictably than traditional braces or other aligners.
Here’s how it works:
- Start with a detailed scan of your teeth during your initial consultation.
- Your aligners are designed to fit snugly and move your teeth gradually.
- You wear them for 22 hours per day, removing them only to eat, drink, or brush your teeth.
Invisalign’s system is tailored for both mild to moderate cases and more complex orthodontic needs. Whether it’s a small gap or a serious overbite, Invisalign can often handle it.
Learn more about Invisalign, what is it and what it does to your smile here.
How Much Does It Cost?
In the UK, the cost of Invisalign treatment ranges from £1,500 to £5,500, depending on the severity of your case. For more complex treatments, Invisalign may cost more than Spark Aligners. Here's a detailed article about Invisalign costs.
Pros and Cons
Pros
- Proven track record: Invisalign has been around longer and is trusted by millions.
- SmartTrack material: Offers better sustained force retention for predictable movements.
- Widely available: Most orthodontists and dentists offer Invisalign.
- Customised plans: Invisalign’s advanced tech lets you see your end result before you start.
- Removable aligners: No food restrictions, unlike traditional braces.
Cons
- Higher cost: Invisalign can be pricier, especially for complex cases.
- Discipline required: You need to wear your aligners for 22 hours per day to stay on track.
- Initial discomfort: New aligners may feel tight for the first few days.
- Cleaning effort: Regular cleaning of your aligners and teeth after meals is a must.
If you need more info, here's an article about the pros and cons of Invisalign.
Key Differences Between Invisalign and Spark Aligners
- Materials Used: Invisalign uses SmartTrack material, while Spark uses TruGen material. Both are designed for comfort, but Spark’s aligners may be slightly more stain-resistant.
- Track Record: Invisalign has been around for decades, while Spark is a newer option. Invisalign’s experience gives it an edge in handling complex cases.
- Appearance: Both aligners are virtually invisible, but Spark’s polished edges might make it less noticeable up close.
- Cost: Spark Aligners tend to have a lower cost, which could be a deciding factor for many patients.
- Availability: Invisalign is widely offered, while Spark may not be available at all clinics.

Do You Actually Need a Clear Aligner?
Clear aligners like Spark and Invisalign are best for:
- Mild to moderate misalignment or spacing issues.
- Adults or teens who want a discreet option.
- Patients willing to commit to wearing them for 22 hours per day.
If you have severe bite problems or lack the discipline to keep aligners in, traditional braces might be the best option for you.
If you're not sure, we've created this article, comparing Invisalign to braces.
Which Is Best? Invisalign or Spark?
It depends on your priorities. If you value a proven track record and wide availability, Invisalign might be the right one. If you’re looking for lower cost and advanced material with stain resistance, Spark could be a better fit.
Your unique dental needs and lifestyle will determine which aligner system suits you best. Talk to your dentist to make the call.
Conclusion
Whether you’re leaning towards Invisalign or Spark, both options offer a discreet and effective way to achieve straighter teeth. Consider your budget, priorities, and dental needs to make the best decision for your smile. Whichever you choose, the journey to a confident smile is well worth it.
FAQs
How Effective are Spark Aligners?
Spark Clear Aligners are highly effective for mild to moderate misalignment and bite issues. For severe cases, traditional braces or Invisalign aligners may be better.
Is Anything Better than Invisalign?
It depends. Spark Clear Aligners offer advantages like stain resistance and a lower price, but Invisalign’s experience and availability might make it the better choice for some.
Are Spark Aligners Faster?
Both systems work at a similar pace, with most treatments lasting 18-24 months. The speed depends on your case’s severity and how well you follow the treatment plan.
Is Spark Better than Invisalign?
Spark is newer but offers features like TruGen material and polished edges. Invisalign has a longer track record and handles more complex cases. It’s not about which is better—it’s about what fits your needs.
Which One is Cheaper?
Spark Aligners are generally cheaper, but costs vary by case and location. Check with your orthodontist for exact pricing.