Related Experiment Video
Updated: Jan 27, 2026
09:30
Methods for the Study of the Zebrafish Maxillary Barbel
Published on: November 23, 2009
13.1K
Distinct healing pattern of maxillary sinus augmentation using the vitroceramic Biosilicate®: Study in rabbits
Francis Cazzeli Thompson1, Mariza Akemi Matsumoto2, Claudia Cristina Biguetti3
1Oral Biology Post-graduation Program, Sagrado Coração University - USC, Rua Irmã Arminda 10-50 - Bauru -, SP 17011-160, Brazil.
Summary
A novel vitroceramic showed satisfactory bone formation in rabbit maxillary sinus augmentation, comparable to traditional bone grafts. However, further research is needed to address its inflammatory and degradation properties.
Area of Science:
- Biomaterials Science
- Oral and Maxillofacial Surgery
- Regenerative Medicine
Background:
- Maxillary sinus augmentation is crucial for dental implant placement.
- Evaluating new biomaterials for bone regeneration is essential.
- Autogenous bone graft (AG) and deproteinized bovine bone (BO) are common grafting materials.
Purpose of the Study:
- To compare the bone healing process of a bioactive vitroceramic (BSi) versus deproteinized bovine bone (BO) in rabbit maxillary sinus augmentation.
- To analyze histological patterns, osteogenic activity, and vascularization.
- To assess the influence of combining grafts with autogenous bone.
Main Methods:
- Bilateral sinus augmentation in 45 rabbits using five groups: Control (AG), BO, BO+AG, BSi, and BSi+AG.
- Histological, histomorphometric, and immunohistochemical analyses (Runx2, VEGF) at 15, 45, and 90 days.
- Comparison of new bone formation, cellular reactions, and vascularization.
Main Results:
- Groups using BO and BO+AG showed mature bone remodeling by 90 days.
- Groups using BSi and BSi+AG exhibited significant cellular reaction and fibrous tissue formation.
- Immunohistochemistry for Runx2 and VEGF correlated with observed tissue responses.
- Histomorphometry revealed no significant differences in new bone formation between groups.
Conclusions:
- The vitroceramic (Biosilicate®) demonstrated potential for new bone formation in maxillary sinus augmentation.
- However, the observed inflammatory response and fibrous tissue indicate potential immunological concerns.
- Further investigation into the biocompatibility and degradation profile of the vitroceramic is warranted.
Related Concept Videos
01:16ECG Interpretation of Arrhythmias I: Sinus Arrhythmias
811
Arrhythmias are disturbances in the heart's rhythm that lead to abnormal heartbeats. These irregularities can originate from different parts of the heart and are classified based on their origin and nature.
Types of Arrhythmias
Sinus Node Arrhythmias
Sinus Bradycardia: Originating from the sinoatrial (SA) node, sinus bradycardia involves slower impulses, resulting in a heart rate of less than 60 beats per minute (bpm). Causes include sleep, vagal stimulation, beta-blockers, hypothyroidism,...
Types of Arrhythmias
Sinus Node Arrhythmias
Sinus Bradycardia: Originating from the sinoatrial (SA) node, sinus bradycardia involves slower impulses, resulting in a heart rate of less than 60 beats per minute (bpm). Causes include sleep, vagal stimulation, beta-blockers, hypothyroidism,...
811
01:06Fixed Action Patterns
17.6K
A fixed action pattern (FAP) is a specific, hard-wired sequence of behaviors that occurs in response to an external stimulus, called a sign stimulus. The behavior is “fixed” because it is essentially unchangeable—proceeding similarly across individuals of a species every time it occurs.
17.6K
01:26Patterns of Fever
3.8K
Before understanding the types and patterns of fever, it is essential to know its phases.
3.8K
01:18Distinctive Features of Adult Stem Cells vs Cancer Stem Cells
4.5K
A stem cell is an unspecialized cell that can divide without limit as needed and can, under specific conditions, differentiate into specialized cells.
Adult stem cells
Adult stem cells are tissue-specific; hence, they divide to develop the tissue from which they originate. One type of adult stem cell is the epithelial stem cell, which gives rise to the keratinocytes in the multiple layers of epithelial cells in the epidermis of the skin. Adult bone marrow has three distinct types of stem cells:...
Adult stem cells
Adult stem cells are tissue-specific; hence, they divide to develop the tissue from which they originate. One type of adult stem cell is the epithelial stem cell, which gives rise to the keratinocytes in the multiple layers of epithelial cells in the epidermis of the skin. Adult bone marrow has three distinct types of stem cells:...
4.5K
01:29Oxygen Requirements and Growth Patterns
1.4K
Microorganisms exhibit diverse oxygen requirements and growth patterns driven by their metabolic strategies and environmental adaptations. Oxygen, while essential for many organisms, can also be toxic under certain conditions, shaping how microorganisms grow and survive.Oxygen Requirements of MicroorganismsMicroorganisms are classified based on their ability to use or tolerate oxygen:● Obligate aerobes like Mycobacterium tuberculosis need oxygen for energy production, as it serves as the...
1.4K
01:13¹H NMR Signal Multiplicity: Splitting Patterns
6.9K
When protons A and X are coupled, their nuclear spin energy levels are slightly modified. This is because the energy required to excite proton A to a spin state parallel to proton X is slightly different from the energy required for it to become anti-parallel to spin X. Consequently, there are two possible excitation frequencies for A (A1 and A2), depending on the spin state of X, and vice versa. The mutual nature of coupling implies that the difference between frequencies A1 and A2, indicated...
6.9K