Residual ridge resorptionas related to lin-gualized and linear occlusal concepts in immediately loaded implant with mandibular overdenture cases (comparative study)‎

الملخص EN

Fourteen male patients were selected from outpatient clinic of the prosthodontics department.

Faculty of dentistry, Suez Canal University to compare between the effects of lingual zed and linear occlusal concepts on ridges in mandibular over denture cases.

The mandibular and maxillary arches were completely edentulous.

Patients were randomly classified into two equal groups each group consists of 7 patients : the group I received complete maxillary dentures and implant supported mandibular over denture constructed by lingual zed occlusal concept (GI).The group II received complete maxillary dentures and implant supported mandibular over denture constructed by linear occlusal concept (GII).

All patients received two threaded titanium implants in mandibular canine region by flapless surgery.

The patients were radio graphically evaluated at (0, 6, 12, and 18 menthes from denture insertion) for anterior and posterior mandibular and maxillary residual alveolar ridge height changes.

The results of this study showed that linear occlusal scheme showed the least mean of bone reduction in residual alveolar ridges height.