الفهرس 
REVIEW OF LITERATUREOnly 14 pages are availabe for public view
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Abstract
The study’s layout is a randomized clinical trial using a split mouth design, in which each patient was assigned to act as his or her own control, with the patient’s left and right sides being randomly assigned to the intervention and the other side being the control. Twelve completely edentulous patients received complete dentures then, six implants were inserted in the maxillary arch corresponding to the position of teeth 15, 13, 11,21,23,25. Second stage surgery was performed following the usual protocol. On one side of the arch, shaping abutments were connected to the implant, titanium wire was bent and attached to the implants by intraoral electric welding. In the other side, cast metal frame work was performed. Then both cast and welded frameworks are picked up in the maxillary complete denture after its modification. The picked-up frameworks in the maxillary denture were then unscrewed and removed from the mouth to be finished and polished before being sectioned at the midline. Additionally, in accordance with the shortened dental arch concept (SDA), the final denture screw-retained hybrid prosthesis was shortened at the end of the final implant (the end of the framework on both sides). Patient satisfaction was assessed using Boerrigter’s technique within 2 weeks, 4 months, 6 months, and 12 months after prosthesis delivery. Maintenance was assessed through periodic recall after 2weeks, 6months, and 12 months after prosthesis delivery. Results showed significant patient satisfaction with the prosthesis though out the intervals but no significant difference between the two groups. Regarding maintenance there was no significant change throughout the intervals or between the groups. Within the limitation of this study, it has been concluded that: 1. The conversion of complete denture into a screw retained hybrid prosthesis with electric welded, and cast frame work affect positively patient satisfaction. 2. The framework type whether electric welded framework or cast framework improves patient satisfaction and prosthetic maintenance of the final prosthesis. 3. The intra oral electric welding is considered as a promising treatment option when compared to the conventional cast framework regarding patient satisfaction and prosthetic maintenance when used under screw retained complete denture.