Abstract:
실제 골조직 또는 연조직과 동일한 굴곡, 크기 등을 갖는 정밀한 3차원 모형을 제작하여 수술 및 학습용으로 활용할 수 있도록 하고, 골대체물질로 제작하여 인공골조직을 제작할 수 있도록 한 것이다. 교정대상을 CT(computed tomography) 촬영하고, 골조직 또는 연조직에 상응하는 좌표값을 측정하여 얻은 다수의 위치 데이터를 종합하여 3차원 골조직 또는 연조직 영상을 형성하는 단계와; 3차원 골조직 또는 연조직 영상에서 측정 오류를 가진 데이터를 제거하는 교정 단계와; 교정된 3차원 골조직 또는 연조직 영상의 일부를 제거하거나 또는 3차원 골조직 또는 연조직 영상의 일부를 분리 독립시킬수 있고, 특정 형상을 부착하는 작업이 가능하도록 3차원 골조직 또는 연조직 영상을 컴퓨터 시뮬레이션화 하는 단계와; 상기 영상에서 특정위치 파악 및 표면적 및 체적측정이 가능한 시뮬레이션화 하는 단계와; 시뮬레이션된 3차원 골조직 또는 연조직 영상에서 모의 성형수술을 수행하는 단계와, 성형된 부위의 골조직 또는 연조직을 대체하는 3차원 대체 골조직 또는 연조직 영상을 형성하는 단계 및 시뮬레이션된 특정 영상을 형성하는 단계와; 형성된 3차원 대체 골조직 또는 연조직 영상 정보를 모형제작장치에 전송하고, 모형제작 물질을 이용하여 3차원 골조직 또는 연조직 모형을 제조하는 단계와; 모형제작 물질대신 골조직 또는 연조직을 만들 수 있는 물질로 3차원 골조직 또는 연조직 모형을 제조하는 단계를 포함한다.
Abstract:
PURPOSE: Provided is a dental implant which can prevent invasion of saliva, expand in accordance with the shape of a dental root and be readily manufactured in a simple structure. CONSTITUTION: The dental implant includes an abutment(10), a fixture and an expanding nut(60). The abutment(10) has a head(12) and a neck to support an artificial tooth, a supportive collar(14) projected from the neck at the border between the head(12) and the neck. The head(12) and the neck are formed in one piece. The fixture has a through hole(58). On the top of the through hole(58), a neck receiving part is provided to be contact with the neck. Around the peripheral at the top of the through hole(58), a shoulder(52) is formed to be contact with the supportive collar(14) and a first raised part is formed in the longitudinal direction. The diameter is reduced from the raised part to the bottom of the through hole(58). At least one slit is formed on the side wall of the through hole(58). The fixture has threads(59) to be bound with the expanding nut so that the slit is opened from the raised part.
Abstract:
PURPOSE: Provided is a bioabsorptive ceramic-polymer complex material for tissue engineering with teeth apatite and polymer used which mixes teeth apatite, polymer for tissue engineering and solvent to keep porosity on the surface and section so that it improves humidity absorption rate. CONSTITUTION: The production process of the bioabsorptive ceramic-polymer complex material for tissue engineering with teeth apatite and polymer used comprises the steps of: (i) extracting an inorganic material from teeth of human or animals and crushing them to prepare teeth apatite; (ii) selecting one material from PGA, PLA, PLLA, PLGA, chitosan and PHBV as bioabsorptive polymer; (iii) selecting one solvent from methylene chloride, chloroform, DMSO and week acid; and (iv) mixing 60-90wt% of bioabsorptive polymer and 10-40wt% of teeth apatite under the selected solvent to produce a ceramic-polymer complex material.
Abstract:
PURPOSE: A tooth observation mirror having a luminous body is provided to observe easily a dark portion in a process for diagnosing or treating a tooth by installing the luminous body at a mirror for observing the tooth. CONSTITUTION: A reflective mirror reception bracket(30) is used for receiving a reflective mirror(10). A lower cover(35) is combined with the first combination portion of a lower portion of the reflective mirror reception bracket(30). A body is formed with the reflective mirror reception bracket(30) and the lower cover(35). A handle(50) is combined with the reflective mirror reception bracket(30). The reflective mirror(10) is formed with a circular plate-shaped mirror. The first combination portion is formed at the lower portion of the reflective mirror reception bracket(30). The second combination portion is formed at side portion of the reflective mirror reception bracket(30).
Abstract:
본 발명은 고형으로 성형 가공된 키토산의 골 대체물로서의 신규한 용도 및 골 형성 관련 유전자의 발현에 관한 것이다. 본 발명은 고형으로 성형 가공된 키토산의 구조를 확인하고 생체 적합성, 생분해성 및 골 형성 관련 유전자 발현 양상을 측정하여 골 대체물로서의 적합성을 규명하므로써 골 대체물로서의 새로운 용도를 제공하는 뛰어난 효과가 있다.
Abstract:
PURPOSE: A making method of substitute using animal bones is provided, which can replace damaged bone part of the human body into the new substitute without immune rejection, also reinforces the bones to use as a bone pin, a bone screw and a bone fixing plate. CONSTITUTION: A bone substitute producing method includes the steps of collecting bones by size and part from young healthy animal having no disease after examinations and cleaning, treating the bones in hydrogen peroxide vapor for over 15minutes, in 100% of alcohol or solution of mixing chloroform and methanol more than 24hours, in 0.6N of hydrochloric acid for 6-12hours according to needed parts and situations, treating the bones with Phosphate buffer solution over 30minutes, keeping the bones at -70°C, performing lyophilization more than 24hours at a minimum, sterilizing by using electric beam, EO gas or 25KGy of irradiation, and immersing the bones resulted in a solution with antibiotics before use. Treating bones in hydrogen peroxide for 15minutes and processing lyophilization more than 24hours are the ways of solidifying the bones.