Atrophy or deficiency of the alveolar bone tissue is one of the most common obstacles to high-quality dental restoration using dental implants. Tooth loss resulting from trauma, complicated caries, periodontitis, or long-term lack of masticatory load leads to gradual bone resorption. Under such conditions, implant placement becomes technically impossible or is accompanied by a high risk of failure. Modern oral surgery in Lviv offers a reliable solution to this problem — osteoplasty, or bone grafting.
The essence of the procedure lies in restoring the original volume, height, and width of the bone bed using specialized bone graft materials. Thanks to advances in biomaterials and surgical techniques, bone augmentation has become a predictable and safe procedure with a high success rate. The choice of a specific material depends on the clinical picture, the extent of the defect, the patient’s medical history, and the required speed of preparing the bone bed for subsequent titanium implant placement.
High-quality bone tissue augmentation creates a solid foundation that not only holds the implant securely but also ensures proper distribution of chewing forces and a natural aesthetic gum contour. Let us take a closer look at the main types of bone graft materials, their properties, advantages, and application features in modern dental practice.
Autogenous Materials: The “Gold Standard” of Osteoinduction
An autograft, or autogenous bone material, is the patient’s own bone tissue harvested from a donor site (such as the retromolar area, chin, or palate) and transplanted into the defect zone. For many decades, autogenous bone has been considered the “gold standard” in reconstructive surgery due to its unique biological properties. It contains live osteocytes and growth factors that trigger the natural process of new bone formation.
The main advantage of autogenous material lies in its complete biocompatibility and zero risk of immune rejection or disease transmission. Autogenous bone possesses three key mechanisms of regeneration: osteogenesis (presence of living matrix-producing cells), osteoinduction (stimulation of stem cells), and osteoconduction (presence of a scaffold for blood vessel and cell growth). This ensures the fastest and highest-quality osseointegration among all available alternatives.
However, using an autograft comes with certain drawbacks, chief among them being the need for an additional surgical site to harvest the material. This increases the invasiveness of the procedure and extends the patient’s initial recovery period. Furthermore, the volume of donor material is limited by anatomical features. For this reason, autogenous bone is often mixed with other types of bone graft materials in specific proportions to achieve optimal volume while maintaining high regenerative potential.
Xenogenic Granules: Stability and Slow Resorption
Xenogenic materials are derived from bone tissue of animal origin (most commonly bovine or porcine), which undergoes multi-level chemical and thermal processing. During purification, all organic components and proteins are completely removed, eliminating any possibility of allergic reactions or immune responses. The end result is a pure mineral hydroxyapatite scaffold that is structurally almost identical to human bone due to its porous architecture.
Xenogenic granules are a classic example of an osteoconductive material. They act as a physical matrix through whose pores new capillaries grow and the patient’s osteoblasts migrate. The primary advantage of xenogenic materials is their extremely slow rate of resorption (breakdown). This allows for maintaining a stable volume of the augmented area over a long period, which is particularly crucial in complex three-dimensional reconstructions of the alveolar ridge or during sinus lift procedures.
In modern dentistry, xenogenic materials are widely used due to their safety, predictability, and the lack of a need for an additional donor site. They are ideal for socket preservation after tooth extraction, filling bone pockets in periodontitis, and restoring bone volume during single-stage or two-stage implant placement.
Allogenic and Synthetic Grafts: Alternative Solutions
Allogenic materials are sourced from human donor bone tissue that undergoes a rigorous process of sterilization, disinfection, and special processing (such as freezing or freeze-drying/lyophilization). Depending on the type of processing, allografts can retain osteoinductive properties due to the preservation of specific bone morphogenetic proteins (BMPs). They resorb faster than xenogenic materials and are gradually replaced by the patient’s own bone, creating a dense, high-quality regenerate.
Synthetic materials (alloplasts) are entirely artificially produced bone substitutes made from beta-tricalcium phosphate ($\beta$-TCP), hydroxyapatite, or combinations thereof. They are completely safe in terms of infection control and raise no bioethical concerns. Synthetic granules vary by resorption rate: beta-tricalcium phosphate resorbs relatively quickly, giving way to newly formed bone, whereas synthetic hydroxyapatite exhibits high resistance to resorption.
The use of allogenic and synthetic materials allows the surgeon to select an optimal combined protocol tailored to a specific clinical task. Utilizing mixes of different granule types makes it possible to balance the rate of the patient’s own bone formation with the duration of maintaining the required graft volume, thereby ensuring high-quality osteoplasty results.
The Role of Barrier Membranes and PRF in Surgical Success
Successful bone grafting in Lviv is rarely limited to merely placing bone granules. To prevent soft gum tissues (epithelium and connective tissue), which grow significantly faster than bone, from invading the augmentation zone, special barrier membranes are used. These membranes can be resorbable (collagen-based), which dissolve naturally after several months, or non-resorbable (titanium-reinforced or PTFE), which require subsequent removal. They stabilize the granules in the designated area and isolate the regeneration site.
A distinct role in modern bone grafting protocols belongs to Platelet-Rich Fibrin (PRF), derived from the patient’s own blood. By centrifuging the patient’s blood, a fibrin clot rich in platelets and growth factors is obtained. Mixing PRF membranes or liquid plasma fractions with bone granules results in so-called “Sticky Bone,” which is easy to mold and adapt to the defect site.
The application of growth factors significantly accelerates angiogenesis (new blood vessel formation), reduces postoperative swelling and pain, and shortens the overall maturation time of the bone regenerate. The combined use of high-quality granules, reliable barrier membranes, and autogenous growth factors makes osteoplasty a predictable and comfortable procedure for the patient.
Conclusion
Modern bone grafting in Lviv is a high-tech, highly individualized procedure whose success relies on the proper selection of osteoplastic materials. Thanks to a wide array of autogenous, xenogenic, allogenic, and synthetic granules, combined with barrier membranes and PRF technology, surgeons can successfully restore even the most challenging bone defects. A comprehensive approach to analyzing the patient’s anatomical conditions guarantees long-lasting implant outcomes and restores full masticatory function and smile aesthetics.
A specialist in prosthetics in aesthetic dentistry, who solves the problems of inflammation of bone tissue, loss of one or more teeth and restores the integrity of the dentition. Has developed clinical thinking and possesses modern techniques in surgical and orthopedic dentistry. He completed an in...