Abstract: The object of the present disclosure is to achieve a composite of dentin collagen obtained from human teeth and a growth factor with function of inducing bone growth, thereby improving a regeneration speed of alveolar bone. The present disclosure provides a method for manufacturing a bone graft composite, said method comprising: pulverizing a tooth to generate tooth powder, and washing and degreasing the tooth powder; demineralizing the degreased tooth powder so as to obtain dentin collagen; preparing a growth factor which includes a component to induce bone growth; and synthesizing a composite by mixing the obtained dentin collagen and growth factor.

Abstract: The present invention relates to a processing method for bone graft material using teeth by separating an extracted tooth by region and processing the extracted tooth to allow regional powders to be independently used or mixed depending on a use such as graft material comprises the following steps: (a) cutting a tooth extracted from a patient at the boundary between the dental crown and the dental root of the tooth; (b) removing the missing region of the horizontally cut dental crown of a tooth, soft tissue and pulp tissue; (c) quick-freezing the tissue of the dental crown and pulverizing the same to prepare a powder having an average diameter of 200-1,500 ?m; (d) degreasing the powder; (e) dehydrating the powder; and (f) carrying out a post-process including at least a sterilization with respect to the degreased and dehydrated powder to prepare a bone graft material.

Abstract: The present invention discloses an alveolar bone graft, a processing method thereof, and a method of treatment using the same. The processing method of the present invention comprises the steps of: (a) separating the tooth gathered from a patient into a crown and a root; (b) removing soft tissues and enamels within neurons of the crown and the root; (c) washing the crown and the root taken in step (b); (d) forming a number of holes in the washed crown and the root; (e) dewatering, degreasing and decalcifying the crown and the root having a number of holes; and (f) freeze-drying the crown and the root. The present invention allows the safety of an implant operation to be improved; and a metastasis of infectious diseases of allograft, xeno (animal) graft to be prevented by using the patient's own tooth. Also, the present invention allows an autogenous bone graft to be possible without additional operations.

Abstract: The composition based on a discharge from an oil refining plant after a desulfurization of heavy oils in the oil refining plant using a catalyst, comprising: 80% or less of vanadium; 80% or less of molybdenum; 20% or less of nickel; 30% or less of cobalt; 99% or less of alumina; and a trace of the impurities, which is catalytically active to purify the exhaust of diesel vehicles. A filter or a washcoat made of the discharged catalyst composition alone or in combination with ordinary filtering materials or ordinary washcoat materials can be very useful for purification of smoke. In addition, a catalyst in which at least one metal of the platinum group is uniformly impregnated on the filter is quite superior to conventional ones employing alumina or titania as a washcoat in stability to both high temperature and sulfur trioxide.