Evaluation of Horizontal Bone Gain of Ridge Augmentation Using Customized Porous Zirconia Shell.
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Zirconia shell technique.
- Who it may be relevant to
- Registry conditions: Horizontal Ridge Deficiency, Deficient Alveolar Bone. Basic parameters: from 18 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Egypt
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Tomographic Evaluation of The Dimensional Changes After Horizontal Ridge Augmentation of the Lower Posterior Mandible Using a Novel Customized Porous Zirconia Shell Technique: Clinical Case Study.
Overview
Khoury technique, which employs autogenous bone blocks harvested from the patient, has been widely used for horizontal and vertical ridge augmentation. This method introduces critical limitations, including the technical complexity, morbidity associated with donor site harvesting, such as infection, neurosensory disturbances, and post-operative discomfort This clinical case series aims to demonstrate how customized pours zirconium shell could be an alternative technique for ridge augmentation to overcome the limitations of Khoury shell technique.
Detailed description
Ridge augmentation is a surgical procedure designed to increase the height and width of the alveolar ridge to provide adequate bone volume for the placement of dental implants. Deficient alveolar ridges are treated using various surgical techniques to restore adequate bone volume for dental implant placement. These techniques include guided bone regeneration (GBR), ridge splitting, distraction osteogenesis, autogenous block bone grafting, onlay bone grafting, and maxillary sinus lifting.
The Khoury technique is a widely recognized approach in dental implantology for horizontal and vertical ridge augmentation. This technique involves the use of autogenous bone blocks harvested from the patient, typically from the mandibular symphysis or ramus. These bone blocks are split into thin laminae and stabilized with micro screws to reconstruct deficient alveolar ridges , and the voids created between the bone blocks are filled with autogenous bone chips to promote regeneration .
This approach is associated with risks, such as donor site morbidity, infection, and potential neurosensory disturbances, sever post operative pain, also technical complexity of the procedure also restricts its application to highly skilled clinicians and patients with adequate donor sites.
These challenges highlight the need for alternative techniques or improved strategies to overcome the limitations of the Khoury technique while achieving predictable outcomes in ridge augmentation procedures.
Zirconia is utilized in the fabrication of zirconia crowns and dental implants, among other dental replacement components. This material is a polycrystalline ceramic with high strength and rigidity, even at small thickness, and bio inertness, among other interesting properties.
The structural integrity of zirconium membranes makes them an excellent choice as non-resorbable membrane for GBR. Studies have demonstrated their excellent biocompatibility, optimal tissue integration, high mechanical strength that ensured effective space maintenance for bone formation, smooth surface that minimized soft tissue ingrowth. Additionally, zirconia's customizable nature allows for precise defect contouring, leading to improved aesthetic outcomes. Overall, zirconia membranes present a valuable tool in GBR procedures, offering potential advantages over traditional materials like titanium meshes .
All those studies used the zirconia as an occlusive 3D non-resorbable membrane except on animal study evaluated the effect of the porous zirconia membrane in comparison to the occlusive one .
In an attempt to overcome the limitation of Khoury technique, zirconia can be used as a shell to augment the deficient alveolar ridges. Hence the purpose of this clinical case series is to introduce a novel customized pours zirconium shell and to tomographically assess the bone gain after horizontal ridge augmentation for deficient mandibular ridges.
Interventions
- Procedure Zirconia shell technique
Customized Zirconia membrane will be printed as a porous shell and will be used as a non resorbable membrane for horizontal ridge augmentation of deficient posterior mandibular region.
Primary outcome measures
- Horizontal bone gain [Time frame: 6 months postoperatively.]
Secondary outcome measures (3)
- Soft tissue dehiscence [Time frame: Soft tissue will be evaluated post-operatively at 1, 2, 4, 6, 8, 12, and 16 week recall appointments]
- Swelling score [Time frame: Swelling score will be evaluated for one week postoperatively]
- Pain score [Time frame: First thing in the morning for the first 7 days post-operatively.]
Eligibility criteria
Inclusion criteria
- Age more than 18 years old.
- Deficient lower posterior area (Seibert class I).
- Enough inter-arch space for placement of implant-supported prosthesis.
- Motivated the patient to have the treatment.
- Good oral hygiene.
Exclusion criteria
- Patient with systematic conditions that could interfere with healing process.
- Pregnant females
- Smokers.
- Poor oral hygiene.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- N/A
- Model
- Single group
- Masking
- Open label
- Primary purpose
- Treatment
Study locations
Egypt · 1 center
- October University for modern sciences and arts (MSA University) — Giza
Identifiers
NCT: NCT07056920 · PER 4.4.1