Written by Andrew Sedler, COO

Written by Andrew Sedler, COO

Written by Andrew Sedler, COO

Implant-Assisted Removable Partial Dentures

FEATURES & BENEFITS OF TRADITIONAL REMOVABLE PARTIAL DENTURES

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Removable Partial Denture and dentist
Partial dentures are one of the treatment modalities that are underused in today’s dentistry. This is unfortunate as there are many patients for whom a partial denture may be a good choice of treatment. When you factor in the potential to integrate implants, by creating an implant-assisted removable partial denture, a partial could become an ideal prosthetic option for many patients.

Burbank Dental Lab has been one of the nation's leading Removable Partial Denture (RPD) labs for decades, and now even more so. As part of Burbank Dental Lab's continuing development of our implant department, there has been a collaboration between the implant and removable prosthetic work teams. The ability to design and fabricate both implant restorations and removable prosthetics as an integrated team provide a vast collection of potential treatment options for you and your patients.

What You Will Learn In This Article

  • 1
    Learn the features and benefits of a traditional removable partial denture.
  • 2
    Learn what is an implant-assisted removable partial denture, along with the features and benefits.
  • 3
    Learn the best practices and steps to maximize success and minimize headaches.

Traditional Removable Partial Dentures

Features & Benefits
The most common category of removable partial dentures is the cast Co/Cr framework that employs clasping systems to retain the partial denture in the patient’s mouth. The goal of this type of partial denture is to create a prosthetic that is primarily tooth-borne and retained, thus minimizing the negative impact on the tissue. A properly designed metal framework will also minimize stress and trauma to the teeth that it uses for retention, and will spread the biting forces more evenly to the whole arch.

It should also be understood, that not all Co/Cr alloys are created equal. One of the best choices in Cobalt Chromium alloys is Vitallium  2000 Plus. Vitallium has been the first name of partial dentures for over 40 years and continues to deliver and create an ideal blend of material properties for removable partial dentures.
Features
  • Tensile strength is higher than any other chrome cobalt alloy on the market.

  • Elongation over twice that of the previous Vitallium.

  • Extraordinary strength and unprecedented fracture resistance while allowing for smaller, lighter, more delicate partial frameworks.

  • Increased flexibility, without deformation or fracture, allowing for excellent adjustability similar to that of gold.

  • Produces the most refined, smooth surface available, one that is easier to adjust, maintains its luster and resists plaque while still maintaining that legendary Vitallium precision fit.


    Removable Partial Denture - Vitallium alone

Benefits
  • RPDs are one of the most affordable means of having missing teeth replaced.

  • Keeps adjacent and opposing teeth from shifting.

  • Easily adjusted for ongoing retention.

  • Provides a balanced, functional platform for the patient to chew and speak.

  • Compared to dental bridge work, having a removable partial denture minimizes and causes no damage to the adjacent teeth.

Concerns
  • Patients do not like visible metal clasps.

  • Partial dentures may also affect speech and taste as it partially covers the roof of the mouth.

  • Anatomically teeth are still missing, and the bone loss in the area will continue to occur.

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Implant-Assisted Removable Partial Denture

Implant-assisted removable partial dentures provide many advantages to the patient and open the door to serving many patients with implant restorations that may not be candidates for other implant prosthetics.
Implant Supported Denture - Burbank Dental Lab
Features
  • Reasonably affordable option for removable partial denture wearing patients to improve their quality of chewing and quality of life.

  • Typically retained with the use of Locator-type attachments.

Uses for Locator attachments with RPDs include
Partial Dentures
  • Stabilizing distal extensions

  • Hiding unsightly clasps, customizing retention to the patient’s desire, and increasing retention can be easily accomplished by replacing the worn retentive nylon.

  • Implants can often be placed in the extraction site of a failed RPD abutment tooth. (Figure 4)

Burbank Dental Lab - Fig. 4 RPD
Figure 4
Benefits
  • Can eliminate the need for clasps for esthetic reasons. (Figure 5)

Partial Dentures - Fig. 5 Burbank Dental Lab
  • Maintains bone in edentulous areas where implants are placed.

  • Reduces the amount of cross-arch metal connectors.

  • Eliminates potential stress on teeth from clasps.

  • Can be transitioned to fixed therapeutic options.

  • The implant-assisted partial denture will hold up longer because it has more support.

  • The remaining teeth will hold up longer because they have extra help supporting the partial denture.

  • The partial denture will fit more tightly because it is snapping onto one or more dental implants.

Concerns
  • Patients may still object to a removable prosthetic.

  • While minimized, there are still metal connectors, which patients may not desire.

Clinical records required
  • Implant-level impression. (Figures 6 & 7)

Open tray impression
Firgure 6
Implant level impression
Figure 7
  • It is essential to get a complete impression of soft tissue, as there will be some interaction between the implant-assisted RPD and the tissue.

  • Bite registration.

  • Bite block may be necessary depending on tooth support for occlusion.

Basic Practices of Implant Assisted Removable Partial Denture
  • Remember that the implant and attachment are there to retain the removable partial denture, not support it.

  • Forces during compression should be distributed over the soft tissue and bone as well as over any remaining supporting teeth.

  • To minimize stress on the implant, it is advisable to place light finger pressure on the removable partial denture while picking up the metal housing.

  • Avoid angles of more than 20 degrees between the long axis of the implant and the opposing force.

  • It is ideal to have 1.5 mm of the abutment above soft tissue level for proper engagement of the locator retentive nylon.

  • A minimum of 11 mm from the implant platform to the opposing dentition is ideal to prevent fractures of the removable partial denture over the locator housing.

The purpose of this article was to make you aware at a fundamental level, of the option of treating your patients with removable partial dentures, and specifically with an implant-assisted removable partial denture. Burbank Dental Lab is uniquely positioned as a very experienced removable lab and one of the nation's leading dental implant labs. Give Burbank Dental Lab a call or engage us in our Live Chat (click blue icon located in corner of your screen) to assist you in treatment planning and problem-solving for your next partially edentulous case.

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Fabrication
of the future
is here!

Burbank Dental Lab has three new state-of-the-art Carbon M2 printers. We are very excited about the options that these cutting-edge printers will allow us to offer our dental clients. Here are some of the advantages that these printers will begin to deliver to you and your dental practice.

Our New
State-Of-The-Art
3d Printers

Carbon offers a highly dependable 3D manufacturing solution for many dental applications with its breakthrough Digital Light Synthesis™ technology, enabled by a wide range of dental materials.

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