View clinical trials related to Maxillary Sinus Lift.
Filter by:Vertical bone height reduction after extraction in the posterior maxilla is inevitable and complicates the treatment plan. Crestal sinus elevation, using implants and different grafting procedures are considered some of the proposed treatment protocols. Ever since the introduction of implant dentistry and implant placement in the posterior maxilla has been a dilemma. The choice of the type of bone, anatomical landmarks and reduced remaining bone height are all obstacles faced when placing implants in this area. Vertical bone height reduction occurs post extraction of the maxillary molars and premolars by maxillary sinus pneumatization. Many protocols were suggested to overcome this phenomenon; placing short implants, 2nd premolar occlusion and finally maxillary sinus elevation. A recent systematic review evaluated osteotomes mediated sinus floor elevation with or without grafting material. It concluded a high long term survival rate in both procedures, however only one comparative study was used in the analysis that involved 12 participants only. Another systematic review assessed the survival of implants placed with lateral versus crestal sinus approach in 4-8 mm ridge height. It concluded that the ability of the less invasive crestal sinus approach to replace one-stage lateral approach, however, only one randomized control trial was presented that involved 4o patients, and were followed-up for 5 years. This emphasizes the gap of knowledge in literature with high quality evidence concerning these approaches. The purpose of the present study is to evaluate the radiographic vertical gain in bone height as well as the implant stability after implant placement without the use of bone grafts in posterior maxilla following sinus elevation using the crestal implant approach technique.
implant placement in the posterior maxilla is problematic, not only due to inferior properties of bone but also due to loss of vertical bone height which happens after extraction of posterior teeth. when the required additional height is few millimeters, indirect transcresta sinus lifting procedures are recommended. This study compares sinus lifting using the conventional osteotome versus the osseodensification with densah burs.
twenty recruited patients indicated for sinus augmentation and simultaneous implant placement will be divided into two groups (10 in each of the groups).to evaluate & compare bone formation & implant stability after shneiderian membrane elevation and augmentation with graft less tenting technique with different implant lengths. group one will receive 8mm implant lenght while group two will receive 10mm implants.
twenty recruited patients indicated for sinus augmentation and immediate implant placement will be divided into two groups (10 in each of the two groups), to compare bone formation and implant stability after shneiderian membrane elevation and augmentation with Hydroxyapatite Nano particles [Nanostreams] or augmentation with graft less tenting technique with simultaneous implant placement.