Page 20 - Impact of implant retained overdenture treatment and speech, oromyofunction, social participation and quality of life.

Chapter 1
implants, there are in general two possibilities. Firstly the denture can be fixed to the implants (FID). Secondly the denture can be clicked over the implants (IOD). Implant-retained overdentures are anchored over a bar, firmly connecting the implants, or over non-connected implants via a ball or locator abutments (Fig. 3). The abutment is the transmucosal component that is screwed into the implant (in the bone) and makes it possible to have the connecting components in the oral cavity (outside). The advantage of using the latter is mainly the ability to remove the denture. This enables the patient to clean the denture himself and gives the possibility to release some of the pressure on the gum. The IOD treatment is getting more attention the past years. The review of Mishra and Chowdhary (2019) examined the literature concerning patient’s OHRQoL and satisfaction with IOD’s compared to CD’s, reviewing 21 articles. Retention, stability, comfort, speech and chewing efficiency improved with IOD’s with enhanced patient’s satisfaction and a better OHRQoL, compared to CD’s 15.
Fig 3. Two implant rehabilitation in the maxilla connected with a bar (A) and non-connected on locators (B).
However, some patients present with an advanced resorption of their jawbone, caused by longtime edentulism and rehabilitation with CD. Hereby regular dental implants cannot be placed due to limitations in bone morphology. In those cases often invasive reconstructive bone regenerative procedures are required with higher costs, increased morbidity and consequently higher barrier for treatment as compared to conventional implant placement 16,17. Furthermore, elderly edentulous patients are often medically compromised
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