Dentures are removable false teeth made to replace missing teeth. They are custom-made to fit over the gums and can be taken out by the wearer. Dentures are made of acrylic resin and porcelain teeth. Some dentures also have metal components like cobalt-chromium alloy or stainless steel to strengthen the structure.
Do dentures have metal in them? The answer is – it depends. While all dentures have acrylic and porcelain, some also contain small metal parts. These metal components act as a support structure to stabilize the dentures. So whether your dentures have metal or not depends on your specific dental needs.
There are a few reasons why dentists may prescribe dentures with metal components. For patients with few remaining original teeth, the metal provides essential support to the dentures so they fit more securely in the mouth. The metal parts also make the dentures more durable. However, for some patients, non-metal dentures may be preferred based on factors like metal allergies or aesthetics. Discuss options with your dentist to see if metal dentures are right for your situation.
What are dentures made of?
Dentures are primarily made from acrylic resin or plastic. Acrylic resin dentures are lightweight, durable, and cost-effective. They consist of a gum-colored acrylic base that supports the visible white teeth. Partial dentures may also contain a metal framework made of cobalt-chromium to provide strength and support.
The metal parts are concealed by the pink acrylic gum material to give a natural appearance. While less common, dentures can also be made from porcelain, nylon, or flexible polycarbonate materials. These materials provide aesthetic benefits but tend to be more expensive.
What metals are used in partial dentures?
5 benefits of the metals used in partial dentures:
- Durability – Metals like chrome cobalt provide strength and prevent fractures or breaks.
- Stability – The metal framework provides excellent stability and retention to hold the denture firmly in place.
- Lightweight – Metal alloys used are lightweight compared to other restorative materials.
- Thin Profile – Partial metal dentures often have a smaller, thinner profile for a more comfortable fit.
- Easy to Clean – Metals resist plaque buildup and are easier to clean than acrylic or resin materials.
Do full dentures contain metal parts?
Unlike partial dentures, full dentures very rarely contain metal parts. Full dentures replace the entire upper or lower set of teeth, so they do not require internal metal supports. The base that sits against the gums is typically made from acrylic resin or porcelain.
While chrome cobalt can provide strength, it is usually unnecessary in full dentures due to their larger surface area and full tooth/gum coverage. Non-metal alternatives like flexible nylon or polycarbonate materials can provide durable full dentures without metal components. The only potential metal addition could be small hooks or clasps to aid retention.
What non-metal materials make up dentures?
The most common non-metal denture materials are acrylic resin and porcelain. Acrylic plastic is lightweight, affordable, and easy to adjust. Porcelain has a more natural, translucent appearance that some patients prefer. More advanced materials like nylon and polycarbonates allow for flexible, metal-free dentures.
These adaptable materials increase comfort and grip better to the gums. Some dentures also utilize rubber or silicone pads to provide cushioning and retention. Composite resin that matches natural gum colors offers additional aesthetics. While less durable than metal, non-metal denture materials provide versatility in fit, feel, and appearance.
Can you get metal-free dentures?
It is possible to get full dentures or partial dentures that are completely metal-free. Metal-free options utilize durable nylon, polycarbonates, or flexible composite resins rather than chrome cobalt or other metals. They integrate polymer materials that cling securely to the gums without external wires or bars.
Metal-free dentures maintain strength and support while avoiding potential irritation or allergic issues associated with metal components. They also have more lifelike translucency and gum coloration. While typically more expensive than conventional dentures, custom metal-free dentures offer an advanced comfortable solution for those wanting to avoid metals entirely.
Why do some dentures have metal in them?
Some dentures contain metal parts to provide additional support and stability. Metal frameworks make the dentures more durable while keeping them lightweight. They are useful when the patient still has some natural teeth remaining that the denture can clasp onto. The metal clasps grip the natural teeth securely to hold the partial denture firmly in place. This prevents the denture from moving around or falling out while eating and speaking.
What purpose does metal serve in partial dentures?
The metal components in partial dentures serve several important purposes. The metal provides critical support to the structure so thinner acrylic can be used, resulting in a lighter and less bulky appliance. The strength of the metal also allows for the incorporation of clasps that wrap around existing teeth. These clasps keep the appliance firmly in place and prevent it from moving or falling out.
Metals like chrome cobalt allow for extremely precise fit. The rigid metal frame conforms tightly to the contours of the patient’s mouth.
What types of metal are used in dentures?
| Metal | Use |
| Chrome | Base plates, partial frameworks |
| Cobalt | Added to chrome for strength and wear resistance |
| Titanium | Lightweight alternative with biocompatibility |
| Gold alloys | Clasps and parts for metal allergies |
| Stainless steel | Clasps, wires, partial frames |
The most common metals used in dentures are chrome and cobalt alloys. Titanium is a lighter weight option. Gold alloys help those with metal allergies. Stainless steel can be used for clasps, wires, and partial denture frames.
Are metal denture parts necessary?
Metal components are not strictly necessary for all dentures. All-acrylic dentures can be perfectly functional for patients with no remaining natural teeth. However, metal parts offer substantial benefits for many partial denture wearers.
They allow the appliance to be thinner and lighter while providing essential support, durability, Sleep With Your Dentures In and retention from carefully placed clasps. For patients with irregular ridges or few remaining teeth, metal may be recommended for optimal stability and chewing ability.
Can dentures work well without metal parts?
Dentures can certainly work well without metal components. High quality all-acrylic full and partial dentures have no metal at all. As long as patients have good bone support and healthy oral tissues, acrylic dentures can fit securely and be comfortable for eating and speaking.
Patients with more extensive tooth loss or highly resorbed ridges may get better functionality from the strength and retention of precision-fitted metal frameworks. So while metal is not mandatory, it provides advantages for many partial denture wearers.
Do metal denture parts cause problems?
Metal denture parts can potentially cause some problems. The metal parts can be quite heavy, which some patients find uncomfortable. The metal clasps and framework can also wear down any remaining natural teeth over time through repeated contact and grinding movements. However, when properly constructed and fitted by a skilled denturist, metal partial dentures are generally durable and comfortable for most patients.
Does metal in dentures affect taste?
Metal denture frameworks do cover some taste buds under the denture, which can mildly reduce flavor perception. The metal itself does not directly impair taste, but by occupying space in the mouth, it can minimally hinder access to taste receptors. However, most patients adapt to this within a few weeks of getting new dentures. Proper denture fit and placement helps minimize taste interference.
Can metal denture parts irritate your gums?
The metal framework and clasps of partial dentures can sometimes irritate the gums, especially if the dentures do not have a good fit. Ill-fitting dentures put excess pressure on the gums, potentially leading to sores and irritation. Getting the dentures properly adjusted and fitted by a denturist can eliminate this issue. With well-made metal dentures, gum problems are uncommon.
Is metal in dentures linked to galvanic shocks?
There is no evidence that metal dentures or metal fillings cause or increase galvanic shocks in the mouth. Galvanic shocks can rarely occur when two dissimilar metals in the mouth essentially act as a battery, but this is not linked to any specific metal dental work. As long as dentures are properly made, maintained, and fitted, galvanic issues do not occur.
Are metal dentures less durable than non-metal?
No, metal dentures are widely regarded as being more durable and long-lasting than non-metal dentures. The metal components make the dentures stronger and more resistant to fractures or damage from drops or pressure. With proper care, metal partial dentures can potentially last over 10 years without needing replacement. The metal helps reinforce the acrylic and clasp parts.
How to know if your dentures have metal
The most common way to know if your dentures contain metal is to ask your dentist. When getting dentures made, the dentist should inform you of the materials being used, especially if there is metal involved.
Metal dentures often have a metallic taste or make the mouth feel cooler or warmer since the metal conducts temperature. You may also see metal clasps or parts of a metal framework peeking out from the pink plastic gums of the denture. If unsure, request your dental records which should state the materials used.
How to spot metal parts in partial dentures
With partial dentures that replace only some teeth, look for metal clasps that hook onto remaining teeth to hold the denture in place. There may also be thin metal bars linking false teeth together or small metal rests that contact the gums for support.
The metal pieces may be visible or concealed by plastic. Flipping the denture over, a metal plate or cobweb-like lattice indicates a metal framework inside. Ask your dentist to point out metal parts for you. If they used metal, it will be documented in your records.
Signs your dentures contain hidden metals
Since metals like chrome cobalt are hidden under the plastic gums and teeth of dentures, visual inspection won’t reveal them. Signs of concealed metals include a metallic or chemical taste, temperature sensitivity, magnetism, premature wear, and irritation or allergic reaction in those sensitive to metals.
Your dentist should have informed you of any metals used or documented it in your records. If concerned, request an updated list of materials to check for hidden metals.
Should your dentist disclose metals in dentures?
Dentists have an ethical obligation to inform patients of all materials used in dental work, especially those containing metal due to potential allergies or sensitivities. Metals used in dentures should be disclosed upfront and documented in your dental records. You have a right to know what is being permanently placed in your mouth so you can make an informed decision on what is best for your health.
Do denture labels state contained metals?
Unfortunately denture labels do not reliably state all materials used, including metals. The small print labels are primarily for manufacturer identification rather than informing patients. Your dentist may add a handwritten note about metals used, but you cannot count on labels for that information. It is best to request documentation from your dentist listing the exact materials in your dentures for your records.
Alternatives to metal denture parts
There are several alternatives to using metal in dentures. Acrylic resin is a common alternative that allows the denture base to be lightweight while still sturdy. Thermoplastic materials like nylon can also be used to create flexible partial dentures. These materials can prevent irritation in patients with metal allergies.
Porcelain is another alternative that can be used for the teeth of the denture. It provides a natural, aesthetic look. Titanium is also now being used as it is much lighter than traditional chrome cobalt metal.
What to ask your dentist about metal-free dentures?
When considering metal-free denture options, there are several key questions to ask your dentist. You’ll want to inquire about what materials they recommend for metal-free dentures and why. Ask about the durability and lifespan of non-metal materials compared to metal options.
Comfort is another important factor, so ask how the fit and feel of non-metal dentures compares. Be sure to understand the limitations of metal-free options – are there certain clinical situations where metal is still preferable? Finally, discuss costs of metal versus metal-free dentures, as alternatives may come at a higher price.
Cost difference of metal vs non-metal dentures?
The cost difference between metal and non-metal dentures can vary significantly depending on the materials used. Metal dentures tend to be the most affordable option. Alternatives like flexible resin or thermoplastic dentures are typically two to three times more expensive than conventional metal dentures.Â
Porcelain denture teeth can also add cost over acrylic teeth. However, non-metal options may carry other benefits like improved comfort and aesthetics that make the additional investment worthwhile for some patients. Discuss costs with your dentist to determine the best option for your budget.
Durability of non-metal options for dentures?
The durability of non-metal denture options can vary depending on factors like material, design, and proper use/care. Well-made acrylic resin dentures can last 5-10 years with proper maintenance. Thermoplastic nylon resin materials stand up well to wear and tear too. Porcelain denture teeth are very durable, resisting chipping and fractures better than acrylic teeth.
Proper handling and cleaning of any denture type is key for longevity. Talk to your dentist about durability – they may recommend additional treatments like denture relines over time to maintain a proper fit if using a non-metal base material. Well-cared for non-metal dentures can still provide many years of service.
Types of metal-free materials used in dentures?
Some common metal-free materials used for dentures include acrylic resin, nylon thermoplastic resin, polyethylene terephthalate glycol (PETG), polyethylene, porcelain, and zirconia. Acrylic resin is lightweight, affordable, and easy to adjust. Thermoplastic resins like nylon provide flexible partial denture bases.
PETG is a durable material that resists fractures. Porcelain is known for its natural, aesthetic look and is often used for denture teeth. Zirconia is a newer material gaining popularity for its strength and biocompatibility. Many metal-free options now exist for both the base and teeth of dentures that offer excellent function and aesthetics over traditional metal frameworks.
Frequently Asked Question
Why use metal in dentures
To provide strength and support to the base and structure.
What metals are used in dentures
Common metals include chrome, cobalt, titanium, gold, and stainless steel alloys.
Do partial dentures have metal
Yes, partial dentures often use metal clasps to securely attach to natural teeth.
Can you see the metal parts
Sometimes metal clasps or bars are visible, but base metals are hidden under the pink plastic gums.
Do metals in dentures cause problems
Metals can sometimes cause allergic reactions, metallic taste, and temperature sensitivity.
Conclusion
Dentures can be made from different materials, including metal and plastic. Metal dentures typically use a cobalt chromium alloy for the base and framework. They may also have stainless steel clasps to help secure partial dentures. The advantages of metal include strength, thinness, and durability. However, metal can be more expensive and is less aesthetic looking.
Plastic dentures, usually made from acrylic resin, have the benefit of appearing more natural. They are also cheaper and easier to adjust. However, plastic bases are thicker, less durable over time, and more prone to breakage compared to metal.
The choice between metal versus plastic dentures depends on factors like cost, appearance priorities, and clinical needs for support and retention. While metal provides the strongest, longest-lasting option, new high-tech plastics are also quite durable, with good aesthetics. Patients should discuss the pros and cons of both metal and plastic materials with their dentist when choosing dentures.
