* denotes required field

Your Name: *



Gender: *

Personal Email: *

This will be your username

Password: *

Display Name: *

This will be what others see in social areas of the site.

Address: *










Phone Number:

School/University: *

Graduation Date: *

Date of Birth: *

ASDA Membership No:





Hi returning User! please login with Facebook credentials where Facebook Username is same as THENEXTDDS Username.






THE NEXTDDS Student Ambassador Blogs

Implant supported over dentures

 Permanent link
From my few years of caring for edentulous patients, I have noted one major trend: people do not like their mandibular denture! I have heard numerous patients tell me that they simply do not wear them unless they are in a public setting and need them for esthetic purposes. Common complaints among mandibular denture wearers include 1)they move when I eat 2) they fall down 3)they cause sore spots on my gums 4) my tongue lifts them up  

Dental practioners have been attempting to solve these problems for decades. Adhesives work for short periods of time but must be reapplied and can cause the intaglio surface of the denture to "gunk up" over time. Implant supported over dentures are on the rise in popularity and are making great improvements in the lives of denture wearers. 

The concept behind implant supported overdentures is that the implants can act as a "snap" or "locking mechanism" for the lower denture to aid in retention. The implants would be placed anterior to the mental foramen and be symmetrical. Some clinicians advise placing implants in the place of #22 and #27, but others suggest in the place of #23 and #26 to reduce fulcrum effects.  Implant supported over dentures are more common in the mandible, since dentures are less stable there. There are 2 types of implant supported over dentures: 1) ball retained and 2) bar retained. For both of these types, the basic steps for the dentist are identical. 

These steps include:
1) incision over the ridge in which the implants are to be placed
2) reflect a flap
3) make an indention with round bur to prepare for the guide drill 
4) use the guide drill to make the path for implants (normally 2 guide drills are used of different sizes, the smaller drill would be used first) 
5) check the drill path with a parallel pin to ensure the paths are parallel 
6) check the depth with a depth gauge 
7) use an implant driver to install the fixture 
8) remove any surrounding granulation tissue 
9) collagen application under tissues (or the grafting material of choice for your patient) 
10) suturing over the entire ridge where the incision was placed  
11) wait for healing
    * healing may take several months as implant oseeointegrates with bone, time depends on the patient's       ability to heal (diabetic, smoker etc) 
After the healing has been completed, the abutment may be placed and then the final restoration. The final restoration for implant supported over dentures would be a ball or a bar. In both cases, the complete dentures would "snap" on and off the bar or ball. The patient can take the denture out to clean it and while sleeping. Numerous studies and surveys have reported incredible patient satisfaction with implant supported over dentures. Perhaps someday we will no longer being doing complete dentures without considering implants first!

Definitions to know: 
fixture- part of the implant that becomes embedded in the jaw (artificial tooth root) 
abutment- sits above the gum line and securers the denture onto it, added to fixture after osseointegration has taken place