Active clinical trials for "Alveolar Bone Loss"

The purpose of this research study is to shorten the treatment time course for patients who are scheduled for surgery to have a dental implant(s) placed into the upper front part of their mouths and need to have more bone in their jaws to support the implant.

This study is aiming to compare the clinical and radiographic outcomes after complete versus incomplete removal of granulation tissue during modified minimally invasive surgical technique for management of periodontal intrabony defects in patients with chronic periodontitis.

The aim of this pilot study was to assess survival rates and peri-implant bone loss of two narrow-diameter titanium-zirconium implants supporting maxillary and mandibular overdentures during an observation time of 3 years. The masticatory performance, self-reported chewing ability and change of oral health impact profile (OHIP) after rehabilitation were also investigated.

The purpose of this research study is to determine whether this study treatment can improve the bone structure of the upper front part of the jaw in patients who are scheduled for surgery to have a dental implant(s) placed into the upper front part of their mouths and need to have more bone in their jaws to support the implant, so that a dental implant can later be inserted.

The purpose of the study is to gain experience of safety and efficacy with MD05 in man in alveolar bone regeneration.

The reduction in alveolar bone dimensions is an inevitable outcome after tooth extraction due to the healing events that results in bone modeling/remodeling. Alveolar ridge preservation is a successful approach that aids in reducing these changes greatly. Various techniques have been employed to achieve that outcome utilizing bone grafts and/or membrane. Dentin graft is a promising type that can overcome many of the limitations facing mainstream grafts. Autogenous source serve the advantage of providing graft with no cross-infection risk or immunogenicity. Moreover, the unique structure of dentin makes it suitable for osteoinduction and osteoconduction that yields favorite bone regeneration outcomes. Demineralization of dentin is essential to release trapped growth factors, expose collagen fibrils and enhance the grafts degradability and replacement by native tissues. Many acids have been investigated for the use in chairside preparation of the dentin graft and hence, clinicians are faced with different choices but little evidence regarding the acid which yield s better outcomes.

Comparison of cronally advanced lingual flap to modified periosteal releasing incision (MPRI)

The aim of this study is to evaluate clinically and radiographically soft tissue around single-implant crowns and peri-implant bone resorption respectively by using zirconia implants or titanium implants in horizontally deficient partially edentulous ridges.

Ph.D project: Periapical bone healing after apicectomy with and without retrograde root filling. The aim of this study is to assess periapical bone healing after apicectomy without a filling and apicectomy combined with a retrograde filling material, MTA. Further, we will estimate risk factors in non-healing cases. Study hypothesis: There is no difference in treatment outcome between: Periapical bone healing after apicectomy with retrograde root filling and Periapical bone healing after apicectomy without retrograde root filling

A deficient alveolar ridge segment in prepara¬tion for implant placement can be regenerated by several techniques. The type of graft material for each patient depends on many factors such as the anatomy, the morphology of the bone defect, type of prosthodontic rehabilitation and patient or clinician preferences. Bone graft material should have three properties that made it ideal: a) osteoconduction, it provides scaffolds for bone regeneration; b) osteoinduction, it promotes the recruitment of bone-forming cells and formation of bone and c) osteogenesis, induction of cells in the graft to promote regeneration of the bone. Despite of the development of different types of graft material, autogenous bone is still the gold standard for bone augmentation because it exhibits these three mentioned properties. Although it has many advantages, autologous bone has some disadvantages such as high resorption rate up to 50 %, limited source and donor site morbidity. Allografts, xenografts and alloplastic bone graft are materials that are used in everyday practice and over long period, but their disadvantages are numerous in comparison with autologous bone. Allografts can be carrier of some disease and show lack of osteoproliferation, while alloplasts and xenografts show only osteoconduction. According to these facts, it is obvious that there is a need for development an alternative graft material that will surpass these disadvantages.The reconstruction of deficient alveolar ridge defect by the lateral bone augmentation prior to the dental implant placement is predictable and commonly used method. Except animal studies, recent clinical studies showed that there is no difference in the osseointegration of titanium implants in deficient alveolar ridges reconstructed with autogenous cortical bone blocks or autogenous teeth.