There is an urgent need for standardized reporting of PROMs in the field of implant dentistry. Fully edentulous patients in the mandible experience higher satisfaction with an IOD when compared to a CD. All other types of prostheses have been underexposed to research.

Initial bone remodelling was affected by soft tissue thickness. Anticipating biologic width re-establishment by adapting the vertical position of the implant seemed highly successful to avoid implant surface exposure.

Objectives This prospective study analyses the 5‐year clinical outcome, patient satisfaction and the technical outcome of a 2‐implant overdenture on stud abutments. In addition, the influence of mandibular resorption and implant position on these outcomes was assessed. Material and methods Patients received two implants in a one‐stage delayed protocol. Final prosthesis on stud abutments was finalized after 3 months. Implant survival, bone loss, plaque and sulcus bleeding index, OHIP‐14, technical outcome and costs were assessed after 5 years. The Cawood–Howell classification defined the mandibular resorption. Inter‐implant distances and angles (frontal, sagittal) were digitally measured. The significance level was p < .05. Results Fifty‐six patients, 23 female and 33 males (mean age = 66.3, range 41–82), completed the follow‐up. No implants were lost. Radiographical crestal bone loss was on average 1.25 mm (standard deviation SD 1.06), bleeding index was 0.75 (SD 0.73), and plaque index was 1.15 (SD 0.75) and higher for low mandibles (p = .001). The OHIP‐14 reduction post‐connection and after 5 years was significant (p < .001). Five‐year maintenance required on average 6.7 (SD 4.8, range 0–25) interventions per patient. A larger inter‐implant distance was associated with fewer replacement of retention inserts (p = .034) and less interventions (p = .006). Larger frontal (p = .023) and sagittal (p = .046) inter‐implant angles (non‐parallelism) required more inserts. The maintenance cost negatively influences the patient satisfaction (p = .004). 83% of the stud abutments showed wear. Conclusion The implant overdenture on cylindrical stud abutments is a good and stable solution, irrespective of the resorption profile of the mandible. OHIP‐14 improved permanently up to 5 years but is negatively influenced by complication cost. A small inter‐implant distance, more frontal, sagittal inter‐implant divergence increased maintenance.

Large proportions of patients are edentulous and wear removable dentures leading to reduced functional comfort and less oral health‐related quality of life. Satisfaction with the oral situation after implantation depends on the outcome in eating comfort, speech comfort and aesthetics. Modification in form and location of the teeth may affect speech. The aim of this study is to determine speech, oromyofunctional behaviour, satisfaction with the treatment and the impact on quality of life of the horse‐shoe overdenture retained by mini‐dental implants (MDIs) in the maxilla. This prospective multicentre cohort study included 32 patients for treatment. 5 to 6 implants were placed, traumatically piercing the mucosa. Patients were evaluated three times during treatment (pre‐operatively with conventional prosthesis including full palatal coverage (CD), post‐operatively with provisionally relined CD and with horse‐shoe overdenture on MDI). The assessment included a phonetic evaluation, examination of oromyofunctional behaviour, evaluation of the impact on quality of life (OHIP‐14) and a rating of satisfaction with the treatment and speech on a visual analogue scale. Several speech sounds are found to be disturbed before treatment. In the next two stages of the treatment, the number of speech issues decreases. In the final stage, ten people show minor speech problems, especially with the /s/ sound. In this stage, seven people still present with oromyofunctional problems, especially whistling problems. In this last stage, people are very satisfied with the treatment (83%) and with speech (84%). The impact on quality of life is low (8.23/56).

Background It is uncertain, which is the optimal attachment for a mandibular 2‐implant overdenture (2IOD). Purpose To assess 5 years clinical implant outcome, prosthetic maintenance, cost, and PROMs of two cohorts receiving 2IOD on ball or stud abutments in a comparative study. Materials and Methods Ninety edentulous individuals were treated with balls (n = 34) or locator (n = 56). Implant survival, bone‐to‐implant level, prosthetic outcome, technical maintenance, and OHIP‐14 were assessed. Statistics to compare between baseline and 1/5 years and between groups were t‐test or Mann‐Whitney (P < .05); chi‐square was adopted to analyze plaque and technical maintenance or interventions between groups. Results Five years implant survival was 98.7%, irrespective of attachment. Overall mean bone loss was 1.1 mm, probing pocket depth 1.92 mm, bleeding score 0.60, plaque score 1. Plaque accumulated more on locators (P = .023). OHIP‐14 declined from 18.1 to 2.7 irrespective of attachment. Retention for balls was better (P < .005), locators required more maintenance (P < .001), caused by retention‐adjustment (P < .001) or ulcers/pain (P = .014). Five years maintenance‐cost was 11% of initial cost, irrespective of attachment. Conclusions Balls and locators yield stable 5‐years implant outcome and improved Oral Health Related Quality of Life (OHRQoL). Locators required more maintenance and resulted in a lower retention. Maintenance costs are minimal but may affect OHRQoL at least for stud abutments.