الفهرس 
REVIEW OF LITRATUREOnly 14 pages are availabe for public view
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Abstract
The aim of this study was to compare between patient satisfaction and bone height change of mini-implant supported overdentures in comparison with conventional implant after bone expansion technique. A randomized clinical trial was done on 36 patients with thin mandibular ridges were selected from outpatient clinic of prosthodontics department, Faculty of Oral and Dental Medicine – Cairo University. A conventional complete denture was established firstly for all the Patients then randomly divided to two groups to be 18 patients on each group with doing CBCT to all of them. Intervention group received 2 mini-implants (width 2.5mm and height 10mm) in canine area inter-formainely, while the comparator group, received two conventional implants (diameter 3.5mm and height 10mm) in canine region after bone expansion. The bone expansion procedures consisted of alveolar ridge splitting using disks with gradually increased thickness, followed by the usage engine-driven expanders to achieve adequate ridge expansion. Conventional implants were placed according to two stage surgical protocol (comparator group). After implantation, sutures were performed and left for 3 months healing period. After that the implants were uncovered and the ball abutment was inserted for delayed loading. At this point dentures were adjusted to receive the ball abutments. Finally, patients received their mandibular overdenture retained by implants.
Patient satisfaction was recorded using a graded questionnaire with VAS, which consisted of serial of questions asked the patients to measures overall satisfaction and stability of the denture, in addition to aesthetics and chewing efficiency. This questionnaire was handed to the patients at three points of time obtained; baseline (at denture delivery) in the follow up phase either with conventional complete denture or implants retained overdenture.
Standardized radiographs were imaged using long cone technique with Digora® imaging system. The standard radiographs were used to evaluate bone height changes at baseline, 6 months and 12 months follow up period.
Results were collected and statistically analysed giving the following; both treatment protocol improved patient satisfaction in terms of overall satisfaction, stability, aesthetics and chewing efficiency. However, mini-implants group had higher patient satisfaction. For the bone height changes; both treatment groups showed bone resorption, nevertheless the changes were much higher in the conventional implants group in comparison to the mini-implant group at baseline, 6 months and 12 months. In conclusion, mini dental implant retained mandibular overdenture is a successful treatment option regarding the higher value of patient satisfaction with less bone height changes if compared to conventional implant.