Horizontal bone augmentation using two membranes at dehisced implant sites: A randomized clinical study

Nahid, Rakhshinda; Bansal, M.; Pandey-Rai, Shashi

doi:10.1016/j.jobcr.2022.06.003

Cited by 6 publications

(5 citation statements)

References 18 publications

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“…Nonresorbable titanium meshes that rigidly maintain the osteogenic space – originating from classical osteosynthesis – may offer an attractive alternative to other major bone reconstruction techniques 16,113,114 . No differences in the outcome using collagen membranes versus titanium meshes were seen for more minor defects (< 3–4 mm) 115–117 . The disadvantages reported for titanium meshes are a long time for surgery and a need for additional manual skills because of intraoperative bending.…”

Section: Stabilization Of Particulated Graftsmentioning

confidence: 99%

“…16,113,114 No differences in the outcome using collagen membranes versus titanium meshes were seen for more minor defects (< 3-4 mm). [115][116][117] The disadvantages reported for titanium meshes are a long time for surgery and a need for additional manual skills because of intraoperative bending. The potential sharp edges and the problem in achieving tension-free suturing might result in soft tissue trauma and later exposure.…”

Section: Titanium Meshesmentioning

confidence: 99%

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Bone reconstruction of extensive maxillomandibular defects in adults

Kämmerer,

Al‐Nawas

2023

Periodontology 2000

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Reconstruction of significant maxillomandibular defects is a challenge that has been much discussed over the last few decades. Fundamental principles were developed decades ago (bone bed viability, graft immobilization). Clinical decision‐making criteria are highly relevant, including local/systemic factors and incision designs, the choice of material, grafting technique, and donor site morbidity. Stabilizing particulated grafts for defined defects—that is, via meshes or shells—might allow significant horizontal and vertical augmentation; the alternatives are onlay and inlay techniques. More significant defects might require extra orally harvested autologous bone blocks. The anterior iliac crest is often used for nonvascularized augmentation, whereas more extensive defects often require microvascular reconstruction. In those cases, the free fibula flap has become the standard of care. The development of alternatives is still ongoing (i.e., alloplastic reconstruction, zygomatic implants, obturators, distraction osteogenesis). Especially for these complex procedures, three‐dimensional planning tools enable facilitated planning and a surgical workflow.

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Section: Stabilization Of Particulated Graftsmentioning

confidence: 99%

Section: Titanium Meshesmentioning

confidence: 99%

Bone reconstruction of extensive maxillomandibular defects in adults

Kämmerer,

Al‐Nawas

2023

Periodontology 2000

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“…Traditionally, additional bone augmentation is accomplished with barrier membranes to inhibit soft tissue ingrowth and create and maintain a closed environment where osteogenesis may take place relatively unimpeded. The alveolar ridge space can be preserved by adding granules that act as a scaffold to promote new bone formation [15][16][17] . The membrane also prevents granule emanation.…”

Section: Introductionmentioning

confidence: 99%

Effects of bioresorbable mesh cages contained bone graft granules in rabbit femoral bone defects.

Yanagisawa,

Hayashi,

Tsuchiya

et al. 2024

Preprint

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Bone graft granules implanted in bone defects come into physical contact with the host bone and form interconnected porous structure. However, there exists an accidental displacement of granules to unintended locations and leakage of granules from bone defects. Although covering the defect with a barrier membrane prevents granule emanation, this procedure is troublesome. To resolve these problems, we fabricated bioresorbable mesh cages (BMCs) in this study. Bone graft granules composed of carbonate apatite alone (Gr) and bioresorbable mesh cages (BMCs/Gr) introduced the bone graft granules and were implanted into the bone defect in the rabbit femur. Micro-computed tomography and histological analysis were conducted at 4 and 12 weeks after implantation. Osteoprogenitors in the bloodstream from the host bone passed through the pores of BMCs, penetrated the porous structure of graft granules, and might interact with individual granules. Then bone remodeling could progress actively and new bone was formed. The new bone formation was similar to the host bone at 12 weeks and there were minimal signs of local tissue inflammation. BMCs/Gr could reduce the risk of unwanted new bone formation occurring due to loss of granules from the bone defects compared with Gr because BMCs enclosed granules and prevent granules leakage from bone defects and BMCs could not induce unfavorable effects to forme new bone. Additionally, BMCs/Gr could keep specific amounts of granules assembled in one place, avoid displacement of granules to unintended locations, and carry easily. These results demonstrated that BMCs/Gr was effective in bone regeneration and improved clinical handling.

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“…9 Considering the clinical outcomes using different kinds of membranes, similar osteogenic efficacy has been reported. 10,11 However, the difficulty of second stage removal may reduce the blood supply to the newly formed bone, which may cause subsequent bone resorption. 12 The in vivo degradation property of the resorbable collagen scaffold brings a big challenge to a coordinated speed for bone regeneration, thus increasing the need of novel and flexible membranes with a longer degradation time.…”

Section: Introductionmentioning

confidence: 99%

“…The resorbable collagen scaffold is the most widely used barrier membrane for its broad indications, avoiding probable tissue dehiscence and second surgery, when compared to the non‐resorbable membrane 9 . Considering the clinical outcomes using different kinds of membranes, similar osteogenic efficacy has been reported 10,11 . However, the difficulty of second stage removal may reduce the blood supply to the newly formed bone, which may cause subsequent bone resorption 12 .…”

Section: Introductionmentioning

confidence: 99%

Optimizing the combined soft tissue repair and osteogenesis using double surfaces of crosslinked collagen scaffolds

Zhang

Zhu

et al. 2023

J Biomed Mater Res

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Excessive tissue damage or loss has been solved by guided tissue regeneration and guided bone regeneration theories. However, the unfavorable degradation property of the resorbable collagen scaffold brings a big challenge to support soft tissue stabilization and time-consuming osteogenesis. The combined effect for soft tissue and bone of the collagen scaffold with better degradation pattern has not been clearly proven. This study determined whether the double surfaces of crosslinked collagen scaffolds could optimize the combined soft tissue repair and osteogenesis. In this study, we applied the chemically crosslinking treatment to the commercially available collagen scaffolds. Surface characterization, mechanical property and cell proliferation in vitro were evaluated. Combined bilateral skin and bone defects were established with the smooth surface of scaffold facing the skin defect and the rough surface facing the bone defect on the calvaria of rat. Micro-CT and histological evaluation were applied to determine the scaffold degradation pattern, soft tissue repair and osteogenesis. The crosslinked collagen scaffolds showed comparably favorable surface porosity, structure intactness, superhydrophilicity and mechanical properties.Compared to the native scaffolds, the crosslinked scaffolds could optimize the combined soft tissue repair and osteogenesis by preferably prolonged degradation time.Early pro-angiogenesis facilitated soft tissue repair and osteogenesis by upregulated soft tissue matrix degradation and balanced pro-osteogenesis with limited osteoclast-mediated bone resorption. Taken together, this study offers a promising repair strategy for the combined soft tissue and bone defects. Further, the possible mechanism of controllable scaffold degradation should be conducted.

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Horizontal bone augmentation using two membranes at dehisced implant sites: A randomized clinical study

Cited by 6 publications

References 18 publications

Bone reconstruction of extensive maxillomandibular defects in adults

Bone reconstruction of extensive maxillomandibular defects in adults

Effects of bioresorbable mesh cages contained bone graft granules in rabbit femoral bone defects.

Optimizing the combined soft tissue repair and osteogenesis using double surfaces of crosslinked collagen scaffolds

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