25 Clinical Trials for Various Conditions
The main purpose of the study is to measure and localize immediate post extraction changes i.e. socket expansion versus no width change along the socket wall and identify whether the immediate post-extraction ridge width condition (expansion or no change) is a determinant of buccolingual ridge width and height changes 4 months following extraction and ridge preservation.
The purpose of the study is to compare a new grafting material for alveolar ridge preservation to a commonly used and well studied material. Alveolar ridge dimensions as well as histology will be compared.
This study will examine whether adding an amnion-chorion membrane on top of the traditionally used collagen plug will lead to more bone formation compared to the collagen plug only.
Bone resorption after a tooth extraction is a generally accepted knowledge and has been demonstrated by many animal and human studies. Especially during the first three months followed by the tooth extraction, the volume of bone may change significantly without any interference. Thus, doing a ridge preservation procedure following the extraction is a common standard of care method to maintain the socket volume if implant placement is considered as a treatment option in the future. A variety of materials and methods have been used for ridge preservation. However, it's still inconclusive to determine the best material to maintain the ridge dimension, especially for membrane placement that allows for space maintenance to protect the grafting material. Furthermore, there is no evidence to show any treatment rationale is superior to any other ridge preservation method. In general, the membrane serves the function of the barrier and space protector. The periodontal surgeon use membranes to exclude the epithelium growth and to limit the collapse of the soft tissue into the healing alveolar socket. Regarding resorbable and non-resorbable membrane materials, both serve the function of protecting the graft material from the oral cavity. However, there are also many demonstrating that without membranes the extraction socket healed nicely without any interferences. The question to us is: Do we need the membrane to exclude the epithelium or any kind of surgical dressing material is sufficient enough to preserve the volume of the extracted ridge? The object of this study is to compare five popular membranes on the market that present different characteristics of the membranes.
The primary aims of this study are to compare, after 4 months, the clinical and histologic results of a combination demineralized/mineralized putty allograft vs. synthetic calcium phosphosilicate (CPS) putty alloplast graft utilization in socket preservation procedures. A regenerative tissue matrix membrane will be used to cover each graft lying below the flap.
Tooth loss is accompanied by different patterns of bone loss. Up to 50% loss of alveolar crestal bone width will likely occur 1 year after tooth loss, especially in the anterior maxilla. A great percentage of the process of alveolar bone resorption occurs within the first 3 to 6 months post-extraction. If ridge preservation is not conducted, 40%-60% of the total alveolar bone volume is lost during the first 2-3 years post-extraction, and this phenomenon has shown to continue to occur at a rate of 0.25%-0.5% loss per year. It has been proposed that ridge augmentation procedures may reduce the expected ridge reduction after tooth loss. Ridge augmentation procedures may require the use of bone grafts and non-resorbable or non-resorbable barrier membranes. The use of non-resorbable barrier membranes for ridge augmentation has the clinical disadvantage of needing a second procedure for its removal during the healing phase. Osteogen® plug (OPP) consists of a non-ceramic bone graft incorporated in type I bovine Achilles tendon collagen. OPP was first developed to serve as a one-step grafting solution for ridge preservation without the need for a barrier membrane
This study is designed to assess the effects of Alveolar Ridge Preservation (ARP) after tooth extraction compared to extraction alone in the posterior maxilla. The results of this study will demonstrate if the use of ARP reduces alveolar ridge resorption at 6 months post extraction in the posterior maxilla region.
This study is intended to provide statistically robust evidence that Symbios Demineralized Cortical-cancellous granule mix, Symbios OsteoGraf LD-300, and OsteoGraf/N-300 combined with Symbios OsteoShield Collagen Resorbable Membrane can adequately support the alveolus during ridge augmentation procedures, reducing the dimensional changes of both the alveolus and the overlying soft tissues. Additionally, a comparison between each material will be made, providing further evidence of each materials' ability to preserve the alveolus. It is intended to define in objective terms the response of the hard and soft tissues to ridge augmentation.
The purpose of this study is to compare two barrier membrane products, Cytoplast (dPTFE) and BioXclude (human amnion chorion allograft), for their relative efficacies in dental socket preservation procedures, both when the socket is filled and overfilled with freeze dried bone allograft (FDBA).
The purpose of this study is to evaluate clinically, histologically and radiographically the healing of extraction sockets with Zimmer's Puros® allograft compared to creos™ (creo™ Nobel Biocare,), a low-cost allograft material, 90 days following exodontia.
The purpose of this study is to clinically and radiographically assess whether the use of a ridge preservation technique significantly minimizes alveolar ridge resorption following tooth extraction.
The purpose of this study is to evaluate clinically, histologically and radiographically the healing of extraction sockets covered with a resorbable collagen membrane (OSSIX-Plus) 12 weeks following exodontia.
This 14 weeks longitudinal study will be conducted from March 2018 to June 2020, with a 40 participants. No subjects has received placebo medication at any point in the research procedures. Null hypothesis: The use of L-PRF plug, in combination with non-resorbable, open barrier membrane technique to fill the extraction sockets will have no effect on the quality of the newly formed bone nor on the dimensional changes of the ridge, compared to non-resorbable, open barrier membrane technique with natural blood clot.
Purpose of the single arm study is to clinically and histologically evaluate alloplastic in-situ hardening, moldable beta-tricalcium phosphate(TCP) bone graft material and polylactide membrane in alveolar ridge preservation following extraction of non-molar teeth with non-containable extraction sockets.
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 goal of this project is to evaluate the influence of platelet rich fibrin (PRF) in extraction socket healing with or without particulate bone graft. The hypothesis of this study is that PRF will enhance the extraction socket healing and new bone formation when compared to extraction sockets grafted without PRF.
Randomized Controlled study to compare the effectiveness of two different treatment approaches using a new moldable beta-tricalcium phosphate(TCP) bone graft material in ridge preservation of an atraumatic extraction socket site compared to allograft with collagen plug.
The purpose of this study is to compare two different bone graft materials (freeze-dried bone allograft, FDBA and collagen-enriched bovine xenograft, CEBX) that are routinely used for preserving the remaining bone after extraction of an anterior tooth, and before placing a dental implant. Patients will be randomly assigned to either group (flip of a coin) One group will receive FDBA material and the other group will receive CEBX (cow) material. The study aims to examine the following main questions: * Potential differences in linear radiographic horizontal (HRD) and vertical (VRD) ridge dimensional changes between groups after 16 weeks of healing * Other clinical information of the treated areas and information regarding the esthetics of the dental implant that will subsequently be placed at the edentulous site as well as patient satisfaction with the treatment, will be evaluated. The study will include 7 study visits. Study procedures will take place during the same visits as the standard of care treatments (tooth extraction and bone graft, dental implant placement, crown installation and follow-ups). Clinical information from these standard of care visits will be used for the current research study, such as: * Demographic information * Clinical information from intraoral photographs * Radiographic information from cone beam computed tomography and periapical radiographs.
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.
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.
The study is a two-arm, parallel-design, randomized, prospective clinical trial designed to examine histologic wound healing following ridge preservation using bovine xenograft and porcine xenograft materials.This protocol involves procedures that are standard care. All materials are FDA-approved materials being used in an FDA-approved manner. The test group subjects will have extraction sockets grafted with porcine xenograft (Zcore). This test group will be compared to an active control group using bovine xenograft (Bio-Oss). The null hypothesis is that there will be no significant difference in formation of new vital bone between treatment groups (primary outcome). Each subjects will have a non-molar tooth extracted and the socket grafted with either test or control graft material. At the time of dental implant placement 18-20 weeks after tooth extraction a small core biopsy specimen will be removed from the implant site. The core biopsy will then be evaluated for the primary histologic outcome of % vital bone formation and secondary histologic outcome of % residual graft material.
The study is a 2-arm, parallel-design, randomized, prospective clinical trial designed to examine histologic wound healing following ridge preservation using bone allograft that has been prepared by either freeze-drying or via a non-freeze-dried solvent process.This entire protocol involves procedures that are standard care. All materials are FDA-approved materials being used in an FDA-approved manner. The test group subjects will have extraction sockets grafted with a cancellous non-freeze-dried bone allograft (called PUROS graft). This test group will be compared to an active control group using cancellous freeze-dried bone allograft (called FDBA). The null hypothesis is that there will be no significant difference in formation of new vital bone between treatment groups (primary outcome). Each subject will provide a single non-molar tooth site for study treatment. After tooth extraction, the graft material will be placed and covered by a resorbable collagen membrane. Following 3 months of healing, the dental implant will be place, at which time a core of bone will be removed from the site as part of the preparation for the implant. The core biopsy will then be evaluated for the primary histologic outcome of % vital bone formation and secondary histologic outcome of % residual graft material.
The study is a 3-arm, parallel-design, randomized, prospective clinical trial.designed to examine histologic wound healing following ridge preservation using cortical bone allograft, cancellous bone allograft, or a combination of both cortical and cancellous bone allograft. This entire protocol involves procedures that are standard care. All materials are FDA-approved materials being used in an FDA-approved manner. The test group subjects will have extraction sockets grafted with a combination of 50% cortical/50% cancellous FDBA. This test group will be compared to two active control groups - one using 100% cortical FDBA and the other using 100% cancellous FDBA. The null hypothesis is that there will be no significant difference in formation of new vital bone between treatment groups (primary outcome). Each subject will provide a single non-molar tooth site for study treatment. After tooth extraction, the graft material will be placed and covered by a non-resorbable membrane. Following 18-20 weeks of healing, the dental implant will be place, at which time a core of bone will be removed from the site as part of the preparation for the implant. The core biopsy will then be evaluated for the primary histologic outcome of % vital bone formation and secondary histologic outcome of % residual graft material.
The purpose of this study is to compare the clinical and histologic outcomes for acellular dermal matrix and a nonresorbable membrane to determine if either provides a significant therapeutic advantage. The hypothesis is that there will be no difference in crestal ridge width between the two treatments.
To compare dimensional changes in extraction socket of single rooted teeth, 6 months post extraction, when grafted with xenograft versus allograft.