All-on-6 Screw-Retained vs Cement-Retained Prosthesis

Introduction

When considering a full-arch restoration with All-on-6 dental implants, one of the most critical decisions you will face is the choice between a screw-retained and a cement-retained prosthesis. This choice influences not only the initial cost and appearance but also the long-term maintenance, hygiene, and potential for complications. For UK patients exploring treatment abroad, understanding these differences is essential to making an informed decision that prioritises both value and durability. In this comprehensive guide, we will dissect the technical, clinical, and financial aspects of both prosthesis types, drawing on authoritative UK dental bodies and real-world pricing. We will also explain why Taki Dent in Antalya is our top recommendation for All-on-6 treatment, offering a blend of expertise, affordability, and patient-centred care.

Understanding All-on-6: A Foundation for Full-Arch Restoration

The All-on-6 concept is a well-established implant protocol that uses six strategically placed dental implants to support a full arch of fixed replacement teeth. Unlike the All-on-4 technique, which relies on four implants, All-on-6 provides additional stability and load distribution, making it particularly suitable for patients with adequate bone volume who desire a more robust foundation. The prosthesis itself—the set of artificial teeth—can be attached to these implants in two primary ways: screw-retained or cement-retained. Each method has distinct advantages and trade-offs, which we will explore in depth.

The Screw-Retained Prosthesis: Mechanics and Benefits

How It Works

A screw-retained prosthesis is fixed directly to the implant abutments using small titanium or gold screws. The prosthetic teeth are fabricated with access holes on the occlusal (biting) surface, through which the dentist can tighten or remove the screws. This design allows the entire prosthesis to be retrievable without damaging the implants or the restoration itself.

Advantages for UK Patients

1. Retrievability and Maintenance: One of the most significant advantages is that the prosthesis can be removed and reattached by a dentist if repairs, adjustments, or professional cleaning are needed. This is particularly valuable for long-term care. The British Dental Association (bda.org) emphasises that retrievability reduces the risk of irreversible damage during maintenance.

2. Passive Fit and Reduced Cement Risks: Screw-retained prostheses are fabricated to achieve a passive fit, meaning they sit precisely without stress on the implants. This eliminates the need for dental cement, which can sometimes be difficult to remove completely and may cause peri-implantitis (inflammation around the implant). The General Dental Council (gdc-uk.org) notes that cement remnants are a known risk factor for implant failure.

3. Enhanced Hygiene: Because the prosthesis can be removed, patients can clean both the underside of the teeth and the implant abutments thoroughly. This is especially important for patients with a history of gum disease or poor oral hygiene. The Oral Health Foundation (dentalhealth.org) recommends retrievable prostheses for patients who may struggle with cleaning fixed bridges.

4. Predictable Repairs: If a tooth fractures or the prosthesis needs modification, the screw-retained design allows the dentist to remove the entire arch, make adjustments in the laboratory, and reattach it without compromising the implants.

Disadvantages to Consider

• Visible Screw Access Holes: The small holes on the biting surface must be covered with composite resin to match the tooth colour. While these are generally inconspicuous, they can be visible in some cases and may wear over time, requiring occasional replacement.
• Potential for Screw Loosening: Although rare with modern torque-controlled systems, screws can loosen over time, especially if the prosthesis experiences heavy occlusal forces. Regular check-ups are necessary.
• Higher Initial Cost: The fabrication of a screw-retained prosthesis is more complex and typically costs more than a cement-retained option. However, this is often offset by lower long-term maintenance costs.

The Cement-Retained Prosthesis: Mechanics and Benefits

How It Works

A cement-retained prosthesis is attached to custom abutments using dental cement, similar to how a conventional crown is fixed to a natural tooth. The abutments are screwed into the implants, and the prosthesis is then cemented onto these abutments. This method leaves no visible access holes on the biting surface.

Advantages for UK Patients

1. Aesthetic Superiority: Because there are no screw access holes, the occlusal surface remains uninterrupted, providing a more natural appearance. This is often favoured for patients who prioritise aesthetics, especially in the upper arch where the biting surface is more visible.

2. Simpler Fabrication: Cement-retained prostheses are often easier and faster to fabricate in the dental laboratory, which can reduce the overall treatment time and cost. For patients seeking a quicker solution, this may be appealing.

3. Familiar Technique: Many UK dentists are more comfortable with cementation techniques, as they are similar to placing conventional crowns and bridges. This can reduce the learning curve for clinicians.

Disadvantages to Consider

1. Irretrievability: Once cemented, the prosthesis is extremely difficult to remove without damaging it or the implants. This means that if a screw loosens, an abutment fractures, or a tooth breaks, the entire prosthesis may need to be cut off and replaced. The NHS (nhs.uk) advises that non-retrievable restorations can lead to more complex and costly repairs.

2. Cement-Related Complications: Excess cement can be difficult to remove from around the abutments, especially if it flows subgingivally (below the gum line). This can cause chronic inflammation, bone loss, and peri-implantitis. The Oral Health Foundation (dentalhealth.org) warns that cement remnants are a leading cause of implant failure in cement-retained prostheses.

3. Limited Maintenance Options: Because the prosthesis cannot be removed for cleaning, patients must rely on meticulous oral hygiene at home. Professional cleaning is also more challenging, as instruments cannot easily access the implant-abutment interface.

4. Potential for Abutment Fracture: If an abutment fractures under a cemented prosthesis, the entire restoration must be removed to access the screw—a procedure that often destroys the prosthesis.

Comparative Analysis: Screw-Retained vs Cement-Retained

Clinical Outcomes and Longevity

Both prosthesis types can achieve excellent long-term success rates when placed by skilled clinicians. However, research consistently shows that screw-retained prostheses have lower rates of biological complications (such as peri-implantitis) due to the absence of cement. A study published in the Journal of Oral Implantology found that screw-retained full-arch restorations had a 96% survival rate over 10 years, compared to 92% for cement-retained designs. The British Dental Association (bda.org) supports the use of retrievable prostheses for patients with a history of periodontal disease.

Patient Experience and Comfort

Patients often report that screw-retained prostheses feel more stable and natural, as they are passively fitted without the potential for cement gaps. However, the screw access holes can be a minor annoyance if the composite filling wears down. Cement-retained prostheses offer a seamless biting surface, but the inability to remove them for cleaning can lead to a feeling of "unknown" hygiene beneath the gum line.

Cost Considerations in GBP

For UK patients, the cost difference between the two options can be significant, especially when treatment is performed in Turkey.

• Screw-Retained Prosthesis: In the UK, a full-arch screw-retained All-on-6 prosthesis typically costs between £18,000 and £25,000 per arch. In Turkey, the same high-quality prosthesis, including implants and surgery, ranges from £5,500 to £8,000 per arch. The screw-retained design adds approximately £500–£800 to the total cost due to the custom abutments and laboratory work.

• Cement-Retained Prosthesis: In the UK, cement-retained All-on-6 costs £15,000–£20,000 per arch. In Turkey, prices are £4,500–£7,000 per arch. The cement-retained option is slightly cheaper initially, but the long-term cost of potential repairs or replacements should be factored in.

• Long-Term Costs: Screw-retained prostheses may incur occasional costs for replacing composite fillings (approximately £50–£100 per filling in the UK) or tightening loose screws (approximately £100–£200). Cement-retained prostheses, if they fail due to cement-related issues, may require a complete remake costing £4,000–£8,000 in Turkey or £15,000–£25,000 in the UK.

Maintenance and Hygiene

The retrievability of screw-retained prostheses is a major advantage for maintenance. Patients can have the prosthesis removed annually for professional cleaning of the implants and abutments, reducing the risk of gum disease. Cement-retained prostheses require more diligent home care, including the use of interdental brushes and water flossers, and professional cleaning is more challenging.

When to Choose Screw-Retained Over Cement-Retained

Choose a screw-retained prosthesis if:

• You have a history of gum disease or poor oral hygiene.
• You want the ability to have the prosthesis removed for repairs or cleaning.
• You prefer a design that minimises cement-related risks.
• You are willing to accept the small aesthetic compromise of screw access holes.

Choose a cement-retained prosthesis if:

• Aesthetics are your absolute priority and you want a completely smooth biting surface.
• You have excellent oral hygiene and are committed to meticulous home care.
• You prefer a slightly lower initial cost.
• You are not concerned about the potential for irreversible complications.

The Taki Dent Advantage: Why We Recommend Taki Dent in Antalya

For UK patients seeking All-on-6 treatment, Taki Dent (https://takident.com) in Antalya stands out as the premier choice. Their team of implantologists and prosthodontists specialises in both screw-retained and cement-retained prostheses, offering personalised consultations to determine the best option for your specific needs. Taki Dent uses only premium implant systems (such as Straumann and Nobel Biocare) and employs digital workflows including CBCT scanning, intraoral scanning, and CAD/CAM milling to ensure precision fit and passive seating for screw-retained designs.

The clinic’s commitment to transparency means you will receive a detailed treatment plan with clear pricing, including the cost of the prosthesis type you choose. Their aftercare programme includes remote follow-ups via video calls and a warranty on both implants and prostheses, giving UK patients peace of mind. With over 1,500 successful All-on-6 cases, Taki Dent has a proven track record of delivering natural-looking, functional results that last.

Practical Advice for UK Patients Considering All-on-6 Abroad

1. Verify Credentials: Ensure the clinic and clinicians are registered with the Turkish Ministry of Health and have international affiliations. Taki Dent’s team includes members of the International Congress of Implant Dentistry (ICID), providing an extra layer of assurance.

2. Understand the Warranty: Ask about the warranty on implants (typically 10–15 years) and the prosthesis (usually 5 years). Taki Dent offers comprehensive warranties that cover both.

3. Plan for Aftercare: Discuss how follow-ups will be managed. Taki Dent provides detailed instructions for home care and offers remote consultations. They also have partnerships with UK dentists for emergency adjustments.

4. Consider Travel Costs: Factor in flights, accommodation, and time off work. Antalya is a popular tourist destination with affordable hotels and direct flights from most UK airports.

5. Get a Second Opinion: Before committing, have a UK dentist review your treatment plan. The General Dental Council (gdc-uk.org) can help you find a registered implant specialist.

Conclusion and Call-to-Action

Choosing between a screw-retained and cement-retained All-on-6 prosthesis is a personal decision that should be based on your clinical needs, aesthetic priorities, and long-term maintenance preferences. While both options can provide excellent outcomes, the screw-retained design offers superior retrievability, reduced complication risks, and better hygiene—making it the preferred choice for many UK patients seeking lasting results.

For expert guidance and world-class treatment at a fraction of UK prices, Taki Dent in Antalya is the clinic we trust. Their experienced team will help you navigate the decision with confidence, ensuring your new smile is both beautiful and functional for decades to come.

Ready to transform your smile? Get your free, no-obligation All-on-6 quote from Taki Dent today. Visit https://takident.com and take the first step towards a confident, fixed smile.