구조적 및 구성적 분석 방법에 의한 한국 정상성인의 두개안면부 형태에 관한 연구

architectural and structural craniofacial analysis of Korean adults

The growth and development of form of the various parts of the skull-regardless of whether they are formed through endochondral or intramembranous ossification-are totally secondary and are entirely dependent on the origin, growth, development of form, and function of the functional matrices . The functional cranial components provide the means by which every function is performed. Those functional components are made up of two parts : a functional matrix, which actually carries out the function, and a skeletal unit, which protects and, if necessary, supports that functional matrix. There are two types of matrices : periosteal and capsular. Periosteal matrices act directly on the skeletal units by the processes of bone apposition and resorption (or by increase or decrease in amount of cartilage or fibrous tissue). Capsular matrices act secondarily and indirectly on the skeletal units through changing the volume of the capsules within which the functional cranial components pervade. According to the concept of the functional matrix, cranial growth is a combination of the morphogenetically primary activity of both the above types of matrices. With the functional matrix theory, Delaire and others have advocated the use of the architectural and structural craniofacial analysis that was conceived to take into account all of the architectural and structural craniofacial information available on the lateral skull radiograph. This includes all of the head and its associated soft tissues : nose, lips, scalp, larynx, pharynx, and the neck including the fifth cervical vertebra. These are applied to each case to determine the existing individual proportions and balance based upon the unique craniofacial features of that case. Statistical averages relating the individual to an averages group are not used. This archictectural and structural craniofacial analysis of the lateral skull radiograph clarifies the mutual balance of the various bony structures of the cranium and face, individualizes certain of these structures, and specifies their normal or pathologic relationships. Four lines are used and designated C1 through C4 to analyze the cranium. Eleven lines are used to analyze the face and are designated RL, MP, OP, and CF1 to CF8. To study the nature of anatomic fit among the different bones of the craniofacial complex of Korean adult s normal face, and to introduce new reference lines for architecutral analysis of Korean adults, I selected 67 males and 52 females who have normal facial appearance. With their lateral skull radiographs, I carried out the architectural analysis of Korean adults s craniofacial complex using Delaire s twelve lines and their own ramal line, occlusal plane, and mandibular plane. Compare to the Caucasian, architectural analysis of Korean adults craniofacial complex were as follows : 1. The length of craniofacial area was longer than that of craniospinal area and the cranial height/crianiofacial base ratio was higher than of Caucasian. 2. The vertical growth of posterior part of maxilla was higher. 3. The mandibular growth showed clockwise rotation pattern. 4. The vertical growth of chin area was prominent. 5. The interincisal angle was narrow due to the labioversion of the lower central incisor. I would like to suggest the new reference lines for the architectural analysis of Korean adults.