Flexible vs. Metal Partial Dentures: Guide for Dentists

Partial dentures align with the remaining natural teeth to maintain their position and prevent shifting, versus a full denture for patients missing their entire upper, lower, or both arches. With partial dentures, patients have improved functionality and a natural-looking smile. 

An essential aspect of partial dentures is their material. It requires considering factors like oral health needs, lifestyle preferences, comfort, flexibility, aesthetic desires, and any patient allergies or sensitivities. 

This guide explores the differences between flexible vs. metal partial dentures, offering insights to help you make informed decisions tailored to each of your patients.

Understanding the Types of Partial Dentures

A partial denture is a removable prosthetic for replacing missing teeth in your patient's mouth. The false teeth are securely attached to a plate made of either plastic or a combination of metal and plastic. For a natural appearance, the plate is typically pink or gum-colored to blend in with the surrounding gums.

Partial dentures provide an effective and affordable solution for patients with missing teeth, particularly those who may not be candidates for dental implants because of cost or medical reasons. These prosthetic devices function like natural teeth, restoring the ability to chew, speak, and smile confidently.

Different types of partial dentures are available, each offering unique advantages based on a patient’s specific needs. 

Flexible Partial Dentures 

Unlike traditional dentures with stiff, breakable bases, flexible partial dentures are a lightweight and comfortable solution. Crafted from thermoplastic materials, flexible partial dentures are pliable yet durable, and this material allows for better adaptability, ensuring a snug fit. Flexible partial dentures come in various thermoplastic materials, ranging from Duraflex to Nylon-based (Valplast). 

One significant advantage of flexible vs. metal partial dentures is that they’re a secure and aesthetic restoration without metal clasps. However, their pliable baseplate material flexes while chewing, making them unsuitable for replacing long spans of missing teeth or distal extension designs. 

Flexible Partial Denture Benefits

• Lightweight and comfortable.
• No visible metal clasps.
• Blends with gums and surrounding teeth for a natural-looking smile.
• Pliability and custom fitting minimize irritation and pressure points.
• Resistant to stains and odors for long-term hygiene and freshness.
• Biocompatible and hypoallergenic, it is perfect for patients with metal or acrylic sensitivities.

Flexible Partial Denture Downsides

• Less durable than metal frameworks, making them more prone to wear over time.
• Difficult to adjust or repair if there is any damage.
• Limited support for extensive tooth loss. 

Metal Partial Dentures 

Metal-supported partial dentures are made from strong materials like cobalt-chromium or titanium, providing exceptional strength and resistance to wear and ensuring long-lasting functionality, especially when comparing flexible partial dentures vs. metal ones. 

Traditional chrome cobalt partials have been improved with digital design technology, resulting in a better fit and reducing chairside adjustments. A step beyond chrome cobalt partials is the titanium milled partial crafted directly from a titanium block, eliminating casting inaccuracies. Titanium is lighter than chrome cobalt, highly biocompatible, and retains similar strength and adjustability. 

With advancements in digital workflows and material technology, metal partial dentures continue evolving, offering patients better comfort, fit, and reliability.

Metal Partial Denture Benefits

• Durable, with superior strength and longevity, especially when looking at flexible partial dentures vs. metal.
• Stabilize and support remaining natural teeth, preventing unwanted shifting.
• Metal-supported partials can be modified or repaired easily.

Metal Partial Denture Downsides

• Cost more due to their materials and fabrication process.
• Less aesthetic appearance since clasps are visible when smiling or talking.
• Can be uncomfortable, particularly for patients with sensitive oral tissues.
• Accumulates debris easily, requiring consistent maintenance to prevent plaque buildup and staining.
• Metal partial dentures do not always blend seamlessly with natural teeth.

Acrylic Partial Dentures

Acrylic partial dentures are created from acrylic resin, with optional metal clasps for added stability. They are usually a temporary solution for patients undergoing dental treatment before receiving a more permanent prosthesis.

One specific type of acrylic partial denture is the all-acrylic resin prosthesis, a temporary, interim removable partial denture. These prosthetics act as space maintainers, restoring function and aesthetics while you fabricate a definitive dental restoration. 

Acrylic partial dentures are a practical and budget-friendly option, particularly for temporary restorations. While they offer a natural look and are easily repairable, their fragility and shorter lifespan make them less suitable for patients seeking a long-term solution. 

Acrylic Partial Dentures Benefits

• More cost-effective than metal-supported or flexible dentures.
• When comparing an acrylic denture vs. a flexible denture, acrylic ones are easier to adjust and repair.
• Blends in with natural teeth for an aesthetically pleasing result.

Acrylic Partial Dentures Downsides

• Between a metal partial denture vs. acrylic one, the acrylic denture is more prone to cracking or breaking.
• When looking at flexible vs acrylic partial dentures, or even metal ones, acrylic partial dentures are bulkier and may feel less comfortable.
• Wear down more quickly, often requiring replacement sooner. 

Which are the Best Partial Dentures for Dentists to Recommend to Patients?

When it comes down to the best partial denture for dentists to recommend a patient, you should consider which option is:

• The most comfortable for your patient 
• Most in alignment with your patient’s aesthetic preferences
• Durable enough based on how long they’ll wear them
• The most affordable 
• Easiest for your patient to maintain 

When to Use Flexible Partial Dentures

Flexible partial dentures are best for patients prioritizing comfort and aesthetics over durability. They work well in cases where:

• Aesthetics and comfort are top priorities
• Patients have metal sensitivities or allergies

When to Use Metal Partial Dentures

Metal-supported partial dentures are better for patients requiring long-term durability and stability. They are ideal for:

• Patients needing a strong, long-lasting solution
• Those requiring extra stability and support

When to Use Acrylic Dentures

Acrylic dentures are typically a temporary or transitional option rather than a permanent solution. They are best:

• As a short-term restoration
• For patients needing an affordable solution

Why Choose PRO-Craft for Partial Dentures? 

Whether you decide on metal, flexible, or acrylic partial dentures, the right one will provide your patient with a comfortable, functional, and aesthetic restoration for missing teeth. Whether prioritizing flexibility and aesthetics with Valplast flexible partials, strength and durability with metal-supported dentures, or affordability with acrylic options, you must consider your patient’s unique needs, lifestyle, and oral health requirements.

Another part of delivering the best partial denture for your patients is working with a dental lab like PRO-Craft, where we focus on:

• Expert Craftsmanship: Custom-made premium full and partial dentures.
• High-Quality Materials: Offering Valplast flexible partials and durable metal frameworks.
• Dedicated Support for Dentists: Technical assistance and training are available.
• Fast Turnaround: Reliable and efficient delivery times

Contact us today to learn more about our custom partial dentures and how we can support your practice with high-quality restorations.

Explore Our Denture Solutions:

• Valplast Flexible Partial Dentures
• Premium Handcrafted Full & Partial Dentures