This study explores the application aspect of The detailed rules of Census (1896) through the change of Kan numbers in Gyeonpyeong-bang. Although Gyeonpyeong-bang was a high-priority area because of its location, it was difficult to trace the operation of the urban situation due to lack of data. This study is focusing on restoring space and society in the Gyeonpyeong-bang using the information on the type of houses and the number of Kan listed in the family register of Hanseong-bu. The detailed rules of Census sets out provisions for the family registry and the rules of making Tong. Especially when it comes to the rules of making Tong, this rule deals with the code of making ten Hos into one Tong. This study was conducted by dividing the status of the Tong into three types: uncompleted Tong, exceeded Tong without vacant Ho number, and exceeded Tong with the vacant Ho number. Since these three types of Tong are in the process of change towards the complete Tong with 10 Hos, they were thought to be able to demonstrate the specific application of the rules. This study will be meaningful as a case study that expands the point of existing research on the Tong making rules, which was not focused relatively on restoring urban conditions at that time, by looking at the changes in exceptions that deviated from the Sipgajaktong rule.

The purpose of this study was to investigate the initial bone tissue change and ,to repair on the Miniscrew and surrounding tissue under the various types orthodontic forces by use of niti closed spring through the polarizing φ>larizing microscopic fmdings. For this study, three young adult mongrel dogs(experimental group 1, 2, 3) were used, and 12 titanum miniscrew(a1, a2, a3, b1, b2, b3, c1, c2, c3, d1, d2, d3) were inserted into the palatal bone. The experimental design was consisted of equal opposite group(B), extrusion group(C), double same sided group(D). and group(A) was controlled. Group B, C, D miniscrews were loaded with 150gm of force immediately after placing to palatal side, and group B miniscrews were loaded with changed force of equal amount to buccal side after 10 없ys. and Group C was loaded extrusive force, group D was loaded double amount to palatal side at same time. The experimental animals in each group and control group were sacrified at one, three, and six weeks following implatation the miniscrew to make the samples for polarizing microscofic findings on palatal bone and miniscrew. All samples were examed and compared the 비stologic changes through the polarizing microscpe. The obtained results were as follows. 1. Under equal 01ψ。site force group, the histologic features of tissues around Miniscrew in experimental B group was no difference between the control group under equal opposite force group 2. Under extrusive force after lateral force group, it's bone density was decreased less than control groupunder extrusive force after lateral force group. πùs group was most p∞r bone densi마 ofall. 3. Under double same side group, inital feature was sirnlar to control group , but after 6weeks bone density was decreased along the Miniscrew surfaceunder double same side group. Based on these experimental results, in the prac디ce ， Miniscrew was usefull as skeletal anchorage in immediately load after implantation on alveolar bone under lateral force and opposite lateral force, but at applied extrusive force and double opposite side force were non- useful as skeletal anchorage with long-term treatrnent.