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Screw-Retained Crowns Explained: A Guide to Dental Implant Crowns and How They Work

Screw-Retained Crowns Explained: A Guide to Dental Implant Crowns and How They Work

What Is a Screw-Retained Crown?

When it comes to replacing a missing tooth with a dental implant, patients often ask, "What type of crown will I get, and does it matter how it’s attached?" One common option is the screw retained crown, a reliable and widely used solution in implant dentistry.

treatment typically involves two main phases. First is the surgical placement of a titanium dental implant screw, which acts as the new tooth root. This screw is inserted into the jawbone and left to heal for approximately 3–6 months, a process known as osseointegration, where the implant fuses with the bone to create a strong foundation.

During this dental implant healing phase, your dentist will cover the implant with either a cover screw or a healing abutment, depending on whether the implant is buried under the gum or slightly exposed. This ensures the area undisturbed and bacteria-free while healing.

Once the is fully integrated, the restorative phase begins. This is where the dental implant crown, the visible tooth-like part, is attached to the implant. The crown can be connected in one of two ways: using dental cement or a small internal screw. When a screw retained crown is used, the restoration is secured directly to the implant with a tiny screw, allowing for easy access and long-term maintenance.

factors influence the choice between a screw retained crown and a cement-retained crown, including implant position, available spacing, aesthetics, and clinical preference. In this blog, we’ll explore the differences between screw and cement retained crowns, how the implant crown procedure works, and the advantages of screw retained crowns for long-term dental health and ease of replacement.

Dental Implant Treatment: How Screw Retained Crowns Are Placed

At Dental, we often recommend screw retained crowns when restoring dental implants due to their long-term reliability and clinical advantages. The dental implant treatment typically involves precise planning and a staged approach to the health of your jawbone and surrounding tissues.

In most cases, we carry out procedures using a one-stage approach. This means that the dental implant with a screw is surgically placed into the jaw, and a healing abutment is attached at the same time. The benefit of this method is that the gum tissue heals naturally around the healing abutment, helping to form a natural tissue collar for the future dental implant crown. It also simplifies the final dental implant impression appointment, often eliminating the need for additional anaesthesia.

However, in cases where the bone is softer or requires extra time to integrate with the implant (as seen in some upper jaw or patients with low bone density), a two-stage procedure may be . In this case, the implant is fully covered by gum tissue during healing. After 3–6 months, a minor second procedure is done to expose the implant and attach the healing abutment.

Once the healing phase is complete and the implant has integrated with the bone, we move on to taking impressions. The visible part of the implant, called the implant platform, is around 4.5mm in diameter and features an internal hexagon. This design helps unwanted micro-movement between the crown and implant during chewing, enhancing the stability and durability of the restoration.

With a screw retained implant crown, an access hole leads directly to the crown abutment screw. This provides two key advantages:

This and hygienic design is one of the major advantages of screw retained crowns, especially when placed in patients with a history of gum sensitivity or implant complications.

Advantages of Screw Retained Crowns

While both cemented and screw-retained crowns are widely used in dental implant procedures, screw-retained options offer several key advantages that make them a preferred choice for both patients and clinicians.

1. Retrievability and Maintenance:

One of the greatest advantages of screw retained crowns is that they can be easily removed if needed, without damaging the crown or the implant. This means if you need adjustments, repairs, or a full dental crown Hormone Replacement Therapy (HRT/BHRT) in the future, it’s a far simpler procedure.

2. No Cement Complications:

Cement-retained crowns carry the risk of excess dental cement becoming trapped beneath the gum line. This can lead to inflammation, infection, or implant failure. With a screw crown, this risk is eliminated. The crown is secured using a precision screw, with the access point discreetly covered, preserving the health of your gums and implant.

3. Better Gum Health and Hygiene:

Thanks to crown abutment access, your dentist can more easily monitor and clean the implant site, helping to prevent peri-implantitis and promoting long-term success.

4. Predictability in Complex Cases:

For full arch restorations or implants placed at an angle, screw-retained designs offer more flexibility. They can be fine-tuned to improve fit and bite alignment during the implant crown procedure.

FAQ

What exactly is a screw-retained crown?

A crown is a type of dental implant crown attached directly to the implant via a small internal screw. This design allows the crown to be securely fastened but also easily removed if adjustments or are needed, making it a practical solution.

How is a screw-retained crown different from a cement-retained crown?

The key difference lies in how the crown is attached: screw-retained crowns use a tiny screw for direct fixation, while cement-retained crowns are glued onto an abutment. Screw-retained options avoid the risk of leftover cement under the gums, which can cause inflammation or infection.

What are the main benefits of choosing a screw-retained crown?

Benefits include easy retrieval for maintenance or repairs, reduced risk of gum irritation (because no excess cement is involved), better gum health monitoring, and greater flexibility in complex implant cases like angled placements.

Is the screw hole in the crown visible? Does it affect the appearance?

The screw access hole is usually very small and, in most cases, it is covered with tooth-colored composite material that blends well with the crown. While some patients may notice it, modern techniques make it minimally visible and aesthetically acceptable.

How is the screw-retained crown placed during the implant restoration process?

After your implant has fully integrated with the bone (usually 3–6 months), the dentist attaches a healing abutment and later takes impressions. The lab fabricates the crown with an internal screw hole that fits precisely onto your . Once screwed into place, the access hole is sealed for a natural look.

Are screw-retained crowns suitable for all implant cases?

Not always. The position and of the implant affect whether a screw-retained crown can be used. If the screw access would emerge through the front or side of the tooth, a cement-retained crown or custom abutment might be preferred for better aesthetics.

Can screw-retained crowns be removed easily if needed?

Yes! One of the biggest advantages is retrievability. Your dentist can unscrew the crown without damaging it or the implant, which makes repairs, adjustments, or even replacing the crown straightforward.

Do screw-retained crowns last as long as cement-retained ones?

Both types are durable, but screw-retained crowns typically provide easier maintenance, which can the overall implant health. Their ability to be removed easily means any issues can be addressed promptly, potentially extending the life of your restoration.

Does having a screw-retained crown impact my gum health?

Generally, screw-retained crowns are kinder to your gums since there’s no risk of cement trapping under the gum line. This helps maintain healthier tissues around the implant and reduces the chance of inflammation or peri-implantitis.

Will my dentist recommend a crown for my implant?

Your dentist will assess factors like implant position, jawbone quality, aesthetic preferences, and your oral health history. Screw-retained crowns are often preferred for their clinical advantages, but your dentist will recommend the best option tailored to your specific needs.

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