15 Clinical Trials for Various Conditions
When a tooth or teeth are extracted, a defect in the bony ridge often forms. This loss of bone may make it impossible to place a dental implant. Guided bone regeneration procedures are used to re-establish a bone dimension sufficient to place a dental implant. The primary objective of the study is to determine whether there is any difference in the gain of horizontal alveolar ridge width following guided bone regeneration surgery using a combined autogenous/allogenic particulate bone graft versus a particulate allograft alone. Autogenous bone has historically been considered the gold standard for alveolar ridge grafting; however, other materials including allografts and xenografts have also been used with excellent results. This study evaluates the potential benefits, or lack thereof, for using a combined autogenous/allograft approach versus an allograft alone. The investigators will clinically evaluate the efficacy of this technique and determine the difference in bone formation between groups following healing at 5 months by observing bone growth relative to heads of the tenting screws placed horizontally in the locations of greatest defect in the alveolar ridge. A biopsy of the healed site will be taken at the time of implant placement. The null hypothesis is that there will be no difference in the amount of horizontal ridge width gain at 5 months post-grafting between the two different grafting materials (allograft alone versus allograft combined with autogenous bone). Furthermore, the null hypothesis is that histologically, the combination graft (MinerOss®/particulate autograft) will have a similar percentage of vital bone present at 5 months compared to the allograft-alone group (MinerOss®).
The purpose of this study is to document and evaluate how a bone graft material (Healos®) can help rebuild bone width. Dental implants can only be placed when enough bone is found and this bone graft may help to rebuild bone width for dental implant placement. The ultimate goal of this study is to evaluate how this graft material can help bone healing.
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.
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.
This is a prospective, multi-center study to evaluate the use of CopiOs Pericardium Membrane, a bovine xenograft, with use of Puros Cancellous Particulate Allograft, for the augmentation of localized alveolar ridge defects on either the maxilla or mandible.
This research aims to compare the effectiveness of two bone grafting materials on preserving jawbone integrity after tooth extraction. Following extraction, the jawbone surrounding the removed tooth can shrink, affecting future implant placement. By placing a bone graft material in the extraction socket, we aim to maintain adequate jawbone space for future implants. This study compares how well the mixture of vallos®f (human source bone) and Bio-Oss (animal source bone) \[test\], and vallos® only \[control\] grafting materials work. Participants with at least one tooth planned for extraction and subsequent implant placement are sought for this study. Participants will be randomly assigned to either the mixture of vallos®f and Bio-Oss (test) group or the vallos® only (control) group. Throughout the approximately 2-year study duration, participants will undergo oral exams, x-rays, surgical procedures, and follow-up visits. All participants will undergo routine tooth extraction, bone graft material placement, and dental implant placement. After the crown is placed on the implant, participants will attend follow-up visits. Participation in the study is voluntary, and the alternative is to continue routine dental care. Risks include minor discomfort from procedures such as tooth extraction and implant placement. The major benefit of participation in the study is the preservation of jaw dimensions following extraction, which will simplify the placement of a dental implant.
This study will evaluate the effect of allograft bone particle size on the bone quantity and quality following socket grafting and lateral ridge augmentation in preparation for endosseous implant placement. Pre (baseline)- and post-grafting (3 months for sockets and 6 months for edentulous ridges) clinical as well as 2- and 3-dimensional radiographic measurements will be used to evaluate the differences between sites grafted with small vs. large particle sized bone allografts. Histological analysis will be performed at time of surgical re-entry of grafted sites to place the dental implants, and assessed for differences in new bone formation between the 2 types of grafts.
The objective of this study is to investigate the use of human amnion chorion membrane (BioXclude®) as an exposed barrier in ridge preservation and whether the intentional exposure of this membrane to oral environment will adversely affect ridge healing, dimensions, and bone vitality. This is a randomized clinical study.
Guided bone regeneration (GBR) procedures have significantly evolved over the last 20 years. Significant advances have been made with various barrier membranes with or without the use of bone grafts and other materials. Some of the main limitations of non-resorbable barriers included cytotoxicity and need for removal, which can adversely affect the regenerated bone volume. Similar GBR success has been documented extensively with cell occlusive resorbable barriers membranes. Recently, the investigators demonstrated supracrestal bone regeneration in guided tissue regeneration procedures in humans with the use of novel perforated barrier membrane (MPM). The perforation allows mesenchymal stem cells and other progenitor cells present in the gingival tissues to migrate into the osseous defect and contribute to the osseous regeneration potential. The objective of this study is to investigate the GBR potential of MPM in alveolar ridge defects, relative to a similar occlusive barrier. Ten non-smoking patients that need localized alveolar ridge augmentation prior to implant placement will be included into the study. Patients will be divided into two groups, as follows: occlusive bovine collagen membrane (OM control group, 5 patients) and modified bovine perforated collagen membrane (MPM test group, 5 patients). All sites will be grafted with mineralized cortical bone allograft and when needed cortical bone pins will be use for site stability. A Cone Bean (CT) will be obtained prior to surgery and 6-8 months post treatment from which volumetric width changes will be quantify. A bone biopsy will be obtained at the time of implant placement (\~6-8 months) to determine residual graft particles and new bone formation. Dimensional width changes will be assess at 6-8 months during re-entry for implant placement. Soft tissue healing will be assessed at 2, 4, 8, 16 weeks and 6 months. This study can potentially impact current bone augmentation techniques and may lead to the modification of existing commercial membranes that will enhance site development prior to implant placement. The contribution of progenitor cells to the osseous defect might lead to greater bone formation and possible faster wound healing.
This study is designed to compare the clinical and histologic results of ridge augmentation with and without primary closure over the barrier membrane. The hypothesis is that there will be no difference in crestal ridge width between the two groups.
This study aims to examine dimensional alveolar ridge alterations and prevent buccal plate resorption and soft tissue recession following immediate implant placement in extraction sockets in the maxillary esthetic zone using different socket morphology-guided treatment modalities. Expected results of the study are: * To have found the optimal materials and GBR procedures modalities for buccal plate resorption degree reduction; * Soft tissue recession and best esthetic result achievement. There will be possibilities to study socket morphology influence on final esthetic result achievement.
The aim of this case series is to evaluate the outcomes of horizontal ridge augmentation performed using a combination of demineralized freeze-dried bone allograft layered with xenograft bone with a resorbable native collagen membrane.
The proposed study design is a randomized controlled trial, split mouth design, to compare the two different vertical augmentation procedures: Titanium mesh (Ti-mesh) technique and Guided Bone Regeneration (GBR) technique with a high-density polytetrafluoroethylene (d-PTFE) membrane.
This study with compare the ridge dimension changes for a block allograft vs. a demineralized bone matrix moldable allograft.
This clinical trial aims to compare and evaluate the clinical outcomes between two distinct treatment sequences: free gingival graft surgery preceding guided bone regeneration and guided bone regeneration followed by free gingival graft.