What Are Suction Dentures?

Suction Dentures St Catherines
Dentures have existed for decades. From George Washington’s “wooden teeth” (which were in fact made by metal, ivory, and human and animal teeth!) to what many seasoned denture wearers recognize as their first set of “porcelain teeth”. New technology and designs have changed how we see and make dentures today. One example of a newer design is “Suction Cup Dentures”. These dentures generally use many mini suction cups within the denture, or sometimes one big suction cup in the upper denture to stay in place. Unfortunately, the suction cups damage the tissue underneath overtime and cause excessive tissue growth (hyperplasia) that can become precancerous.

Thankfully, denture designs have moved on to alternative solutions on suction dentures. In its simplest definition, a suction denture is a denture held in place purely through suction. However, to achieve minimal damage and effective performance, it’s not as easy as simply using a suction cup. There are two suction denture types – “ultra-suction dentures” and “Suction Effective Dentures (SEMCD)”. Both use different methods of maintaining suction to keep the dentures in place.


Ultra suction dentures

To keep dentures secured in place, ultra suction dentures use a valve system to create suction in a denture. Prior to denture processing, a spacer is placed on the ridge bone of the tissue model and removed afterwards, creating a small space between the ridge and the denture. This space is called a ‘suction chamber’, which is then connected to two tiny valves inserted in each side of the denture.

When a patient bites down, the air goes out of the suction chamber through the valves and the ridge tissue fills some of the space. The ultra-suction valves prevent air from re-entering, creating negative pressure, the ‘suction’. Then, lower pressure from beneath the denture pulls and seals the denture. This method of building ultra-suction dentures can be included into any denture base.

However, studies have shown in some patients that the negative pressure from the valves pull the gum tissue into the suction chamber and cause tissue hyperplasia, excessive overgrowth. Sometimes, food can get caught in the valves and the difficulty in cleaning them makes the ultra-suction denture more of a short-term solution.


Suction Effective Dentures (SEMCD)



Suction Effective Dentures originally known as Suction Effective Mandibular Dentures (SEMCD) are another kind of suction denture. Unlike ‘suction cup dentures’ and ‘ultra-suction dentures’, there is no mechanical suction device. Instead, suction effective dentures are based on an advanced design wherein stability and retention of complete dentures are maintained. This advanced design is the most natural and realistic representation of your mouth which minimizes future damage to the underlying gingival tissue.

As a starting point, precise impression technique of preliminary and final impression procedures, bite registration, tooth position, and injection moulding systems are measured and taken to ensure a natural and intimate fit. The impression for suction effective dentures is made in layers.

The ‘border moulding’ technique’ aims to achieve full extension without overextension, allowing the movements of the facial muscles to define the borders of the denture. To this point, the corners of the back of the lower denture can sometimes be slightly longer than the conventional denture to achieve an effective air seal.

Using suction effective dentures, the more accurate dental impression can help a tremendous deal in retention. As a patient chews, the denture remains seated, air is expressed, and atmospheric pressure sucks the denture onto the gum. This is what ‘effective suction’ is, without any mechanical suction device needed.

Implant dentures or suction dentures?

Implant dentures are those which are retained in your mouth through implants fixed to your gums. Implant dentures look and function like natural teeth, remain affixed in place better, help prevent bone loss in the jaw, and with regular care, can last a long time in most patients. However ideal implant dentures are, it’s not the right solution for everyone. Reasons such as expensive costs, general health biocompatibility or even going through the initial surgery, make suction effective dentures a willing and perfect alternative.

As an alternative to fixed implant dentures, suction dentures are much more affordable. Unsecured dentures, decades ago, were uncomfortable, inconvenient, and awkward to wear. That said, with suction effective dentures, you can still have the advantages of a removable denture but with much more retention and stability. Comparatively, secured or fixed dentures uses methods of snapping in or screwing the denture permanently into the jaw, something which is usually done for the lower, which is traditionally the less stable denture. With how dental design technology has developed in the past few decades, a patient can still get high-level performance by choosing suction effective dentures instead.


Why suction effective dentures might be right for you

a smiling lady

Lower suction effective dentures like these are the biggest advancement in denture fabrication in decades. No adhesives or implants required. You can always count on them to fit well and stay in place. No more loose dentures!

As many as 80 percent of patients may be eligible for upper and lower suction dentures. To find out whether you are a suitable candidate, it’s important to discuss with your denturist. An oral examination can help identify whether you have the right oral structure to ensure the level of success of a lower suction denture. For patients with recent tooth extractions, the gums will need to heal from the extractions.

There are many reasons to consider suction effective dentures for yourself. Imagine having no more loose lower dentures or no more loose upper dentures falling out. Do what so many others have and inquire about them with Hayven Dentures Clinic to find out if they are right for you.
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