Segmentation by type classifies Bone Graft and Substitute products into three core families, each influencing market dynamics through material properties and clinical performance. Autografts, the gold‑standard derived from the patient’s own tissue, represent roughly 30 % of the market; their superior osteogenic potential justifies higher procedural costs despite limited supply and donor‑site morbidity. Allografts, sourced from human donors, capture about 40 % of sales, offering a balance of biocompatibility and off‑the‑shelf availability, with processing techniques (e.g., freeze‑drying, demineralization) defining sub‑categories such as cortical, cancellous, and demineralized bone matrix. Synthetic substitutes, encompassing ceramics (hydroxyapatite, β‑tricalcium phosphate), polymers, and composite blends, hold the remaining 30 % and are expanding rapidly due to scalability, tunable degradation rates, and lower infection risk. Within synthetics, sub‑types like bioactive glass and calcium sulfate address specific defect sizes and load‑bearing requirements. This type‑based taxonomy clarifies how material selection drives adoption patterns and revenue distribution across the Bone Graft and Substitute market.