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๋…ธ์ธ์ •์‹ ์˜ํ•™ํšŒ๋ณด14-1ํ˜ธ

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์ €์ž‘์žํ‘œ์‹œ - ๋น„์˜๋ฆฌ - ๋ณ€๊ฒฝ๊ธˆ์ง€ 2.0 ๋Œ€ํ•œ๋ฏผ๊ตญ ์ด์šฉ์ž๋Š”์•„๋ž˜์˜์กฐ๊ฑด์„๋”ฐ๋ฅด๋Š”๊ฒฝ์šฐ์—ํ•œํ•˜์—ฌ์ž์œ ๋กญ๊ฒŒ ์ด์ €์ž‘๋ฌผ์„๋ณต์ œ, ๋ฐฐํฌ, ์ „์†ก, ์ „์‹œ, ๊ณต์—ฐ๋ฐ๋ฐฉ์†กํ• ์ˆ˜์žˆ์Šต๋‹ˆ๋‹ค. ๋‹ค์Œ๊ณผ๊ฐ™์€์กฐ๊ฑด์„๋”ฐ๋ผ์•ผํ•ฉ๋‹ˆ๋‹ค : ์ €์ž‘์žํ‘œ์‹œ. ๊ท€ํ•˜๋Š”์›์ €์ž‘์ž๋ฅผํ‘œ์‹œํ•˜์—ฌ์•ผํ•ฉ๋‹ˆ๋‹ค. ๋น„์˜๋ฆฌ. ๊ท€ํ•˜๋Š”์ด์ €์ž‘๋ฌผ์„์˜๋ฆฌ๋ชฉ์ ์œผ๋กœ์ด์šฉํ• 

DBPIA-NURIMEDIA

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- ๋Œ€ํ•œ์น˜๊ณผ๋ณด์ฒ ํ•™ํšŒ์ง€ Vol. 33 No. 4, 1995 - ์ •์ƒ๊ตํ•ฉ์ธ์˜๋‘๋ถ€์œ„์น˜๋ณ€ํ™”์—๋”ฐ๋ฅธ๊ตํ•ฉ์ ‘์ด‰์ ์˜๋ณ€ํ™”์—๊ด€ํ•œ์—ฐ๊ตฌ ๊ฒฝํฌ๋Œ€ํ•™๊ต์น˜๊ณผ๋Œ€ํ•™์น˜๊ณผ๋ณด์ฒ ํ•™๊ต์‹ค ์ตœํฌ์ฒ ใ†์ด์„ฑ๋ณตใ†์ตœ๋Œ€๊ท ใ†๋ฐ•๋‚จ์ˆ˜ โ… . ์„œ๋ก  ์ž์—ฐ์น˜์—ด์—์„œ์ตœ๋Œ€๊ตํ•ฉ์ ‘์ด‰์€๊ต๋‘๊ฐ„์˜์™„์ „ํ•œ๊ฐํ•ฉ์œผ๋กœ์ด๋ฃจ์–ด์ง€๋ฉฐ (1) ์ด์œ„์น˜์—์„œ์น˜์—ด, ์ธก๋‘ํ•˜์•…๊ด€์ ˆ, ๊ทผ์‹ ๊ฒฝ๊ณ„๋Š”์•ˆ์ •๋œ์ƒํƒœ์—์ด๋ฅด๊ฒŒ๋œ๋‹ค (2). ๊ทธ๋Ÿฌ๋ฏ€๋กœ์ž์—ฐ์น˜์—ด์—์„œ์น˜์•„์ ‘์ด‰์šฐ์น˜์—๊ณคํ•œ์ดํ•ด๋Š”์˜ฌ๋ฐ”๋ฅธ์ง„๋‹จ (3) ๋ฐ์น˜๋ฃŒ๊ณ„ํš์„์œ„ํ•ดํ•„์ˆ˜์ ์ด๋‹ค (4). ๊ทธ๋Ÿฌ๋‚˜์ตœ๋Œ€๊ตํ•ฉ์ ‘์ด‰์€๊ฐ๊ฐ์˜ํ”ผ๊ฒ€์ž๋“ค์‚ฌ์ด์—์„œ๊ทธ์ˆ˜์™€์œ„์น˜๊ฐ€๋‹ค์–‘ํ•˜๊ฒŒ๋‚˜ํƒ€๋‚˜๋ฉฐ, ์‹ฌ์ง€์–ดํ•œํ”ผ๊ฒ€์ž์—์„œ๋„๋ณ€ํ™”๊ฐ€์žˆ๋‹ค (5). ๋˜ํ•œ๊ทธ๋Ÿฐ๋ณ€ํ™”๋Š”ํ•˜๋ฃจ์ค‘์—๋„์‹œ๊ฐ„์—๋”ฐ๋ผ๋‹ค๋ฅด๊ฒŒ๋‚˜ํƒ€๋‚˜๋ฉฐ (6), ์ €์ž‘๊ทผํ™œ์„ฑ์˜๋ณ€ํ™”์™€๋„๊ด€๊ณ„๊ฐ€์žˆ๋Š”๊ฒƒ์œผ๋กœ์•Œ๋ ค์ ธ์žˆ๋‹ค (7). Friel (8) ์€์ด์ƒ์ ์ธ๊ต๋‘๊ฐํ•ฉ์œ„์—์„œ์ตœ๋Œ€์ ‘์ด‰์ ์ˆ˜๋ฐ์œ„์น˜๋ฅผ๋ช…ํ™•ํžˆ์ธ์ง€ํ•˜๋Š”๊ฒƒ์€์ž„์ƒ์—์„œ๋ณด์ฒ ๋ฌผ์žฅ์ฐฉ์‹œ๋‚˜์ˆ˜๋ณต์น˜๋ฃŒ์‹œ๋งค์šฐ์ค‘์š”ํ•˜๋‹ค. ๊ตํ•ฉ์ ‘์ด‰์ ์ˆ˜์—์˜ํ–ฅ์„๋ฏธ์น˜๋Š”์š”์†Œ๋กœ๋Š”๊ตํ•ฉ์ ‘์ด‰์„์ธก์ •ํ•˜๋Š”๊ธฐ๊ตฌ์˜์œ ํ˜• (10, 11, 12, 13, 14), ๋‘๊ป˜ (15, 16), ๊ตํ•ฉ๋ ฅ (5, 17), ๋จธ๋ฆฌ์™€์‹ ์ฒด์˜์ž์„ธ (18, 19), ์‹œ๊ฐ„ (6, 20) ๋“ฑ์„๊ณ ๋ คํ•˜์—ฌ์•ผํ•œ๋‹ค. ํŠนํžˆ์น˜๋ฃŒ์‹œํ™˜์ž์˜๋‘๋ถ€์œ„์น˜๋Š”ํ•˜์•…์˜์ž์„ธ์œ„์˜๋ณ€ํ™”์™€๊ด€๊ณ„๋˜๋Š”๋ฐ, ํ•˜์•…์˜์ž์„ธ์œ„๋ž€ํ™œ๋™์ด์—†๋Š”๋™์•ˆ์œ ์ง€๋˜๋Š”ํ•˜์•…์˜์œ„์น˜๋ฅผ๋งํ•˜๋ฉฐ์ด์œ„์น˜๋Š”์ผ๋ฐ˜์ ์œผ๋กœ๊ต๋‘๊ฐํ•ฉ์œ„๋ณด๋‹ค๋Š” 2-4mmํ•˜๋ฐฉ์ด๊ณ ๋‘๋ถ€์˜์œ„์น˜์—์˜ํ•ด์–ด๋Š์ •๋„์˜ํ–ฅ์„๋ฐ›๋Š”๋‹ค. ๊ทธ๋Ÿฌ๋ฏ€๋กœ์ตœ๋Œ€ ๊ตํ•ฉ์ ‘์ด‰์„์ด์•ผ๊ธฐํ• ๋•Œ, ํ•˜์•…์˜์ž์„ธ์œ„๊ฐ€๋‘๋ถ€์œ„์น˜์—์˜ํ•ด์˜ํ–ฅ์„๋ฐ›๋Š”์ •๋„์™€๋‘๋ถ€์œ„์น˜์—์˜ํ•ด์ƒ๊ธธ์ˆ˜์žˆ๋Š”๊ตํ•ฉ์ ‘์ด‰์„๊ณ ๋ คํ•˜์—ฌ์•ผํ•œ๋‹ค (21). ์ผ๋ฐ˜์ ์ธ์ •์ขŒ์œ„๋‚˜์‹์‚ฌ์‹œ์˜์ž์„ธ ( ์‹์‚ฌ์œ„ ) ์—์„œ๊ตฌ์น˜๋ถ€๋Š”์ „์น˜๋ถ€๋ณด๋‹ค๋”๊ฐ•ํ•˜๊ฒŒ์ ‘์ด‰ํ•˜๋ฉฐ, ์ž์„ธ๋ฐ๋‘๋ถ€์œ„์น˜์˜๋ณ€ํ™”์—๋”ฐ๋ผ๊ทธ๋Ÿฌํ•œ์ ‘์ด‰์ ์˜์œ„์น˜๋‚˜๊ฐ•๋„๊ฐ€๋ณ€ํ•˜๊ฒŒ๋œ๋‹ค. ๋งŒ์•ฝ์ผ์ƒ์˜์ž„์ƒ์—์„œ๊ตํ•ฉ์กฐ์ •์ด๋’ค๋กœ์ –ํ˜€์ง„์น˜๋ฃŒ๋Œ€์—์„œ์‹œํ–‰๋˜์—ˆ๋‹ค๋ฉด, ์‹ค์ œํ™˜์ž๊ฐ€์ €์ž‘์‹œ๋‘๋ถ€์œ„์น˜์™€๋Š”์ƒ๋‹นํ•œ์ฐจ์ด๊ฐ€์žˆ์œผ๋ฏ€๋กœ๊ทธ๋Ÿฌํ•œ๊ตํ•ฉ์กฐ์ •์ด๊ณผ์—ฐ์ ์ ˆํ•œ๊ฒƒ์ธ์ง€๋Š”์˜๋ฌธ์Šค๋Ÿฝ๋‹ค. ๊ทธ๋Ÿฌ๋ฏ€๋กœํ™˜์ž๋ฅผ์•‰๊ฒŒํ•˜๊ฑฐ๋‚˜์‹์‚ฌ์œ„๋ฅผ์ทจํ•˜๊ฒŒํ•œํ›„, ์ž์„ธ์œ„์˜์–ด๋–ค๋ณ€ํ™”๊ฐ€๊ตํ•ฉ์ ‘์ด‰์—๋ฏธ์น˜๋Š”์˜ํ–ฅ์„ํ‰๊ฐ€ํ•˜์—ฌ์•ผํ•œ๋‹ค. ๋งŒ์•ฝ์‹์‚ฌ์œ„์™€๊ฐ™์ดํ™˜์ž์˜ํ•˜์•…์ด์•ฝ๊ฐ„์ „๋ฐฉ์œ„๋ฅผ์ทจํ•œ๋‹ค๋ฉด, ๊ฑฐ์ƒ๊ทผ์˜ํ™œ๋™์‹œ๋งค์šฐ๊ฐ•ํ•˜๊ฒŒ์ „์น˜๋ถ€์ ‘์ด‰์ด์ด๋ฃจ์–ด์ง€๊ฒŒ๋˜๋ฏ€๋กœ์ด๋•Œ๋Š”์ •์ƒํ๊ตฌ์‹œ๊ตฌ์น˜๋ถ€๊ฐ€๋จผ์ €๋‹ฟ์„์ˆ˜์žˆ๋„๋ก์ „์น˜๋ถ€์˜์‚ญ์ œ๊ฐ€ํ•„์š”ํ•˜๊ฒŒ๋œ๋‹ค (22). ๊ทธ๋Ÿฌ๋‚˜์ด๋Ÿฌํ•œ์ค‘์š”์„ฑ์—๋„๋ถˆ๊ตฌํ•˜๊ณ ๋‘๋ถ€์œ„์น˜๋ณ€ํ™”์—๋”ฐ๋ฅธ๊ตํ•ฉ์ ‘์ด‰์ ์—๊ด€ํ•œ์—ฐ๊ตฌ๋Š”๋น„๊ต์ ์ฐพ์•„๋ณด๊ธฐํž˜๋“ค๋‹ค. ๊ต๋‘๊ฐํ•ฉ์œ„์—์„œ์ „์ฒด์น˜์•„์˜๊ตํ•ฉ์ ‘์ด‰์ ์ˆ˜์™€์œ„์น˜๋ฅผ์ธก์ •ํ•˜๋Š”๋ฐ๋Š”๋ชฉ์ ์—๋”ฐ๋ฅธ๋‹ค์–‘ํ•œ๋ฐฉ๋ฒ•์ด๋ณด๊ณ ๋˜์–ด์™”๋Š”๋ฐ์ด๋Š”ํฌ๊ฒŒ๋‘๊ฐ€์ง€ (23), ์ฆ‰์ •์„ฑ๋ถ„์„๋ฒ• 769

(qualitative method) ์™€์ •๋Ÿ‰๋ถ„์„๋ฒ• (quantitative method) ์œผ๋กœ๋‚˜๋ˆŒ์ˆ˜์žˆ๋‹ค (5, 6, 17, 24, 25, 26). ์ •์„ฑ๋ถ„์„๋ฒ•์€ articulation paper, shim stock, occlusal wax, occlusal registration strip ์ด๋‚˜ silicone impression๋“ฑ์„๋‹จ๋…๋˜๋Š”๋ณตํ•ฉ์ ์œผ๋กœ์ด์šฉํ•˜์—ฌ์น˜์•„์˜์ ‘์ด‰์—ฌ๋ถ€, ์ ‘์ด‰์œ„์น˜๋“ฑ์„ํ™•์ธํ•˜์—ฌ์น˜์•„์ ‘์ด‰์ ์˜๊ฐฏ์ˆ˜, ๋ถ„ํฌ๋“ฑ์„ํ‰๊ฐ€ํ•˜๋Š”๋ฐฉ๋ฒ•์ด๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ articulation paper, shim stock, occlusal registration strip๊ณผ๊ฐ™์€์ ‘์ด‰์ ์˜์กด์žฌ๋‚˜, ์œ„์น˜๋ฅผํ‘œ์‹œํ•ด์ฃผ๋Š”์žฌ๋ฃŒ๋ฅผ์ด์šฉํ•˜์—ฌํ‰๊ฐ€ํ•˜๋Š”๊ฒฝ์šฐ, ์‚ฌ์šฉ์žฌ๋ฃŒ์˜๋‘๊ป˜๊ฐ€ 13-21μm์ด๋‚ด์—ฌ์•ผํ•˜๋ฉฐ (27), ์žฌ์งˆ, ์„ฑ๋ถ„์—๋”ฐ๋ผ์˜ค์ฐจ๊ฐ€๋ฐœ์ƒํ• ์ˆ˜์žˆ๊ณ , ์ˆ ์ž์˜์ฃผ๊ด€์ ์ธํŒ๋‹จ์—์˜์กดํ•˜๋ฏ€๋กœ๊ตํ•ฉ์–‘์ƒ์˜๊ฐ๊ด€์ ์ธํ‰๊ฐ€๊ฐ€๊ณค๋ž€ํ•˜๋‹ค. ๋˜ํ•œ occlusal wax๋‚˜ silicone, zop๋“ฑ์˜์žฌ๋ฃŒ๋Š”๊ตํ•ฉ๋ฉด์—์œ„์น˜์‹œํ‚จํ›„ํ๊ตฌํ•˜๋„๋กํ•˜์—ฌ์ด์žฌ๋ฃŒ์˜์ฒœ๊ณต์—ฌ๋ถ€๋ฅผ์ด์šฉํ‰๊ฐ€ํ•˜๋Š”๊ฒƒ์ด๋‹ค (28). ์ •๋Ÿ‰๋ถ„์„๋ฒ•์€์ ‘์ด‰์ ์˜๊ฐ•๋„๋ฅผ์•Œ์ˆ˜์žˆ๋Š” photoocclusion (29, 30) ์ด์žˆ๋Š”๋ฐ, ์ด๋Š” memory sheet๋กœ์„œ photoelastic wafer๋ฅผ์‚ฌ์šฉํ•˜๋ฉฐ, ๊ด‘ํ•™์ ์ธํŠน์„ฑ์ธ bifringence๋ฅผ์ด์šฉํ•˜์—ฌ๊ตํ•ฉ์ ‘์ด‰์ ์˜์ ‘์ด‰๋ ฅ์„์ƒํ˜ธ๋น„๊ตํ• ์ˆ˜์žˆ๋Š”๋ฐฉ๋ฒ•์ด๋‹ค (30). ์ด๋Š”์ž„์ƒ์—์„œ์Šต์œค๋„์˜์˜ํ–ฅ์„๋ฐ›์ง€์•Š์œผ๋ฉฐ, ์‰ฝ๊ฒŒ์˜๊ตฌ๊ธฐ๋ก์œผ๋กœ๋‚จ๊ธธ์ˆ˜์žˆ์ง€๋งŒ, ๋”ฑ๋”ฑํ•œ plastic wafer๋ฅผ์‚ฌ์šฉํ•˜๋ฏ€๋กœ๊ต๋‘๊ฐํ•ฉ์œ„๋กœ์˜ํ•˜์•…์œ ๋„์‹œ๊ณ ์œ ์ˆ˜์šฉ๊ธฐ์—์˜ํ–ฅ์„์ค„์ˆ˜์žˆ์œผ๋ฉฐ, ๋บจ, ์ž…์ˆ , ํ˜€๋‚˜๊ตฌ์น˜๋ถ€์กฐ์ง์—์••๋ ฅ์„๊ฐ€ํ•ด๊ทธ๋ถ€์œ„์˜์ด‰๊ฐ์ˆ˜์šฉ๊ธฐ์—์˜ํ–ฅ์„์ฃผ์–ด์ž์—ฐ์Šค๋Ÿฌ์šด๊ทผ์œก์ˆ˜์ถ•๊ณผ์ •๋ฐ€ํ•œ์ตœ์ข…ํ•˜์•…ํ๊ตฌ์—์˜ํ–ฅ์„๋ฏธ์น ์ˆ˜์žˆ๊ธฐ๋•Œ๋ฌธ์—๊ฒฐ๊ณผ์ ์œผ๋กœ์ •๊ตํ•œ์ •๋ณด๋ฅผ์–ป์„์ˆ˜์—†๋‹ค๋Š”๋ณด๊ณ ๋„์žˆ๋‹ค (2). ๋‹ค์Œ์œผ๋กœ, ์ตœ๊ทผ์—๊ฐœ๋ฐœ๋œ์ ‘์ด‰์ ์˜์ •์„ฑ์ ๋ฐ์ •๋Ÿ‰์ ํŠน์„ฑ์„์•Œ์ˆ˜์žˆ๋Š” T-scan system์ด์žˆ๋Š”๋ฐ (28), ์ด๋Š”๊ตํ•ฉ์ ‘์ด‰์ •๋ณด๋ฅผ์ˆ˜์ง‘ํ•˜์—ฌ๋ณด์—ฌ์ฃผ๋Š” computerized system์œผ๋กœ์ ‘์ด‰์ ์˜์ˆ˜์™€๋ถ„ํฌ๋ฐ์‹œ๊ฐ„์—๋”ฐ๋ฅธ๋ณ€ํ™”์–‘์ƒ์„๋ณด์—ฌ์ฃผ๋ฉฐ (31), ์ ‘์ด‰๋ ฅ์˜๊ฐ•๋„๋ฅผ 3 ์ฐจ์›์ ์œผ๋กœํ‘œ์‹œํ•ด์ค„์ˆ˜์žˆ์–ด (24), ์–‘์ , ๋™์ ์ธ๋ณ€ํ™”๋ฅผ๊ธฐ๋กํ• ์ˆ˜์žˆ์œผ๋‚˜๋ฏผ๊ฐ์„ฑ๊ณผ์‹ ๋ขฐ์„ฑ์ด์˜์‹ฌ์Šค๋Ÿฌ์šฐ๋ฉฐ (32), wax์™€๋น„๊ต์‹œ false negative contact์ด๋งŽ๊ณ  (33), ๋ฌด์—‡๋ณด๋‹ค๋„๊ตํ•ฉ๋ฉด์˜ํ˜•ํƒœ๊ฐ€๋‚˜ํƒ€๋‚˜์ง€์•Š์•„, ๊ตํ•ฉ๋ฉด์—๋”ฐ๋ฅธ์ ‘์ด‰์ ์˜์ˆ˜๋ฐ์œ„์น˜, ๊ทธ๋ฆฌ๊ณ ๊ทธ๊ฒƒ๋“ค์˜์ด๋™์ƒํ™ฉ ์„๊ธฐ๋กํ•˜๋Š”๋ฐ๋Š”์ ํ•ฉํ•˜์ง€์•Š๋‹ค. ๋ณธ์—ฐ๊ตฌ์—์„œ์‚ฌ์šฉ๋œ black silicone์€๊ตํ•ฉ๋ฉด์„์ƒ์„ธํžˆ๊ธฐ๋กํ• ์ˆ˜์žˆ๊ณ ์ฒœ๊ณต๊ณผ 50μm์ด๋‚ด์˜๊ทผ์ ‘์ ‘์ด‰์˜๊ตฌ๋ณ„์ด๊ฐ€๋Šฅํ•˜๋ฉฐ false negative contact์—†์ด๋น„๊ต์ ๋งŽ์€์ ‘์ด‰์ ์„์–ป์„์ˆ˜์žˆ๋Š”์žฅ์  (34) ์„๊ฐ€์ง€๋ฏ€๋กœ๋ณธ์—ฐ๊ตฌ์—์ ํ•ฉํ•˜๋‹ค๊ณ ์‚ฌ๋ฃŒ๋˜๋Š”๋ฐ”, ์ด์—์ €์ž๋Š”์•™์™€์œ„ (supine position) ์—์„œ๋ถ€ํ„ฐ์ •์ขŒ์œ„ (upright posiiton) ๊นŒ์ง€์ ์ฐจ์ ์œผ๋กœ๋‘๋ถ€์˜์œ„์น˜๋ฅผ๋ณ€ํ™”์‹œํ‚ค๋ฉด์„œ๊ตํ•ฉ์‹œํ‚ฌ๋•Œ์˜์ ‘์ด‰์ ์˜์ˆ˜๋ฐ๋ถ„ํฌ์˜๋ณ€ํ™”์–‘์ƒ์„์‚ดํŽด๋ณด๊ธฐ์œ„ํ•ด, ๊ฐ๊ฐ์˜๋ณ€ํ™”๋œ๋‘๋ถ€์œ„์น˜์—๋”ฐ๋ฅธ์‹ค๋ฆฌ์ฝ˜๊ตํ•ฉ์ธ๊ธฐ๋ฅผ๊ธฐ๋กํ•˜์—ฌ๋น„๊ตํ•œ๋ฐ”๋ฅผ๋ณด๊ณ ํ•˜๊ณ ์žํ•œ๋‹ค. โ…ก. ์—ฐ๊ตฌ๋Œ€์ƒ๋ฐ๋ฐฉ๋ฒ• 1. ์—ฐ๊ตฌ๋Œ€์ƒ K๋Œ€ํ•™๊ต์žฌํ•™์ƒ์ค‘๋ณด์ฒ ๋ฐ๊ต์ •์น˜๋ฃŒ๋ฅผ๋ฐ›์€๊ฒฝํ—˜์ด์—†๊ณ , ์ •์ƒ๊ตํ•ฉ์ธ์ž์—ฐ์น˜์—ด์„๊ฐ€์ง€๋ฉฐ์ œ3๋Œ€๊ตฌ์น˜๋ฅผ์ œ์™ธํ•œ๋ชจ๋“ ์น˜์—ด์ด์™„์„ฑ๋˜์—ˆ๊ณ , ๋ณ‘์ ์ธ์น˜์ฃผ์ƒํƒœ๋‚˜์•…๊ด€์ ˆ์ฆ์ƒ์ด์—†๋Š” 30๋ช… ( ๋‚จ์ž 17๋ช…, ์—ฌ์ž 13๋ช…ํ‰๊ท ์—ฐ๋ น 23.1์„ธ ) ์„์—ฐ๊ตฌ๋Œ€์ƒ์œผ๋กœ์„ ์ •ํ•˜์˜€๋‹ค. 2. ์—ฐ๊ตฌ๋ฐฉ๋ฒ• 1) ํ”ผ๊ฒ€์ž์˜๋‘๋ถ€์œ„์น˜์˜์„ค์ •ํ”ผ๊ฒ€์ž์˜๊ฒ€์‚ฌ์œ„์น˜๋ฅผ์„ค์ •ํ•˜๊ธฐ์œ„ํ•˜์—ฌํ”ผ๊ฒ€์ž์˜๋‘๋ถ€์™€๊ฒฝ์ถ”๋ถ€์œ„๋ฅผ unit chair์˜ head rest์—์˜ํ•ด์ผ์ •ํ•˜๊ฒŒ๊ณ ์ •์‹œํ‚ค๊ณ ๋™์š”๊ฐ€์—†๋„๋กํ•˜์˜€๋‹ค. ์ด๋•Œ, ๋‘๋ถ€์œ„์น˜์˜์„ค์ •์„์œ„ํ•˜์—ฌ๋น„์ต์˜์ตœํ•˜๋ฐฉ์ ๊ณผ์ด์ฃผ์˜์ตœํ•˜๋ฐฉ์ ์„์ž‡๋Š”๋น„์ต-์ด์ฃผ (ala-tragus) ์„ ์ด๊ธฐ์ค€์„ ์œผ๋กœ์‚ฌ์šฉ๋˜์—ˆ์œผ๋ฉฐ, ์ด๊ธฐ์ค€์„ ์„์ค‘์‹ฌ์œผ๋กœ 4๊ฐ€์ง€๋‘๋ถ€์œ„์น˜ (0 ์•™ํ™”์œ„, 30, 60, 90 ์ •์ขŒ์œ„ ) ์—์„œํ”ผ๊ฒ€์ž์˜๊ตํ•ฉ๊ด€๊ณ„๋ฅผ์ธ๊ธฐํ•˜์˜€๋‹ค.(Fig. 1) 2) ๋‘๋ถ€๊ฒฝ์‚ฌ๊ฐ๋„๊ณ„์˜์‚ฌ์šฉ๋‘๋ถ€์œ„์น˜์˜์ ์ฐจ์ ์ธ๋ณ€ํ™”๋Š”ํ”ผ๊ฒ€์ž์˜์ƒ๋ฐ˜์‹ ๊ณผ๋‘๋ถ€๋ฅผ์•™์™€์œ„๋กœ๋ถ€ํ„ฐ์ •์ขŒ์œ„๊นŒ์ง€ 30 ์”ฉ์ฆ๊ฐ€์‹œ์ผœ๊ณ ์ •ํ• ์ˆ˜์žˆ๋„๋ก, ์ €์ž์—์˜ํ•ด๋ฏธ๋ฆฌ๊ณ ์•ˆ๋œ๋‘๋ถ€๊ฒฝ์‚ฌ๊ฐ๋„๊ณ„๊ฐ€์‚ฌ์šฉ๋˜์—ˆ๋‹ค. ์ด๋‘๋ถ€๊ฒฝ์‚ฌ๊ฐ๋„๊ณ„๋Š”ํ”ผ๊ฒ€์‚ฌ์˜ํ•˜ 770

์•…์šด๋™์„๋ฐฉํ•ดํ•˜์ง€์•Š๋„๋ก๊ฐ€๋ฒผ์šดํ”Œ๋ผ์Šคํ‹ฑ์•ˆ๊ฒฝ๊ณผํˆฌ๋ช…ํ•œ์•„ํฌ๋ฆดํŒ์œผ๋กœ์ œ์ž‘ํ•˜์—ฌ์ธก๋ชจ์˜๊ธฐ์ค€์„ ์—์ผ์น˜์‹œ์ผœ๋ถ€์ฐฉํ•˜์˜€์œผ๋ฉฐ, ์ดํˆฌ๋ช…์•„ํฌ๋ฆดํŒ์—๋ถ€์ฐฉ๋œ๊ฐ๋„๊ณ„๋Š” unit chair ๊ฒฝ์ƒ์˜๋ณ€ํ™”์—๋”ฐ๋ผ๋‘๋ถ€๊ฒฝ์‚ฌ๊ฐ๋„๋ฅผ์‰ฝ๊ฒŒ์ธก์ •ํ• ์ˆ˜์žˆ๋„๋ก๊ณ ์•ˆ๋˜์—ˆ๋‹ค.(Fig. 2, 3) 3) ๊ตํ•ฉ์ ‘์ด‰๊ด€๊ณ„์˜์ธ๊ธฐ ๋‘๋ถ€์œ„์น˜์˜๋ณ€ํ™”์—๋”ฐ๋ฅธ๊ตํ•ฉ์ ‘์ด‰์ ์˜๋ณ€ํ™”๋ฅผ์ธก์ •ํ•˜๊ธฐ์œ„ํ•˜์—ฌ, ๋จผ์ €ํ”ผ๊ฒ€์ž์—๊ฒŒ์Šต๊ด€์ ํ๊ตฌ์œ„๋ฅผ์‹œ๋ฒ”๊ณผ์„ค๋ช…์„ํ†ตํ•ด์ดํ•ด์‹œํ‚จํ›„, ๊ฐ๊ฐ์˜๋‘๋ถ€์œ„์น˜์—์„œ์Šต๊ด€์ ๊ฐœํ๊ตฌ๋กœ์ƒ์œผ๋กœ์ƒํ•˜์•…์น˜์•„๊ฐ€๋ฌด๋ฆฌ์—†์ด๊ตํ•ฉํ•˜๋„๋กํ•˜์˜€์œผ๋ฉฐ, ์ดˆ๊ธฐ์ ‘์ด‰ํ›„์น˜์•„๊ฐ€๋ฏธ๋„๋Ÿฌ์ง€์ง€์•Š๋„๋ก์ถฉ๋ถ„ํžˆ์—ฐ์Šต์‹œ์ผฐ๋‹ค. ๊ฐ๋‘๋ถ€์œ„์น˜์—์„œ์˜์ •์ ์ธ์ƒํ•˜์น˜์•„์˜๊ตํ•ฉ์ ‘์ด‰๊ด€๊ณ„๋ฅผ์ธ๊ธฐํ•˜๊ธฐ์œ„ํ•˜์—ฌ์ƒํ•˜์•…์น˜์•„๋ฅผ๊ฑด์กฐ์‹œํ‚จํ›„ black silicone(bite checker, G.C. Inc. Japan) ์„์‚ฌ์šฉํ•˜์—ฌ๊ตํ•ฉ์ธ์ƒ์„์ฑ„๋“ํ•˜์˜€๋‹ค (Fig. 4). Fig. 2. Head angulation gauge 4) ๊ตํ•ฉ์ ‘์ด‰์ ์ˆ˜์˜๊ณ„์‚ฐ ๊ตํ•ฉ์ธ์ƒ์œผ๋กœ๋ถ€ํ„ฐ์ฑ„๋“๋œ silicone bite๋ฅผ view box์œ„์—์˜ฌ๋ ค๋†“๊ณ ๋น›์ดํ†ต๊ณผํ•˜๋Š”์ฒœ๊ณต๋ถ€์œ„๋ฅผ์ ‘์ด‰์ ์œผ๋กœํ•˜์—ฌ Nakao์˜๊ตํ•ฉ์†Œ๋ฉด๋ถ„๋ฅ˜๋„์—๋”ฐ๋ผ์ ‘์ด‰์ ์ˆ˜๋ฅผ๊ณ„์‚ฐํ•˜์˜€๋‹ค.(Fig 5) ๊ตํ•ฉ์ ‘์ด‰์ ์˜์ด๋™์ƒํƒœ๋ฅผ๊ด€์ฐฐํ•˜๊ธฐ์œ„ํ•˜์—ฌ Alginate์ธ์ƒ์žฌ๋ฅผ์ด์šฉํ•œ์ „์•…์ธ์ƒ์„์ฑ„๋“ํ•˜๊ณ , stone๋ชจํ˜•์„์ œ์ž‘ํ•œํ›„, ํ•œํ”ผ๊ฒ€์ž์—๊ฒŒ์„œ์–ป์–ด์ง„ 4๊ฐ€์ง€ silicone bite๋ฅผ๊ฐ๊ฐ์ƒ์•… stone๋ชจํ˜•์œ„์—์˜ฌ๋ ค๋†“ Fig. 3. Subject wears on head angulation gauge Fig. 1. Reference line(ala-tragus line) Fig. 4. Black silicone bite 771

Fig. 5. Classification of divided occlusal surface(nakao) Fig. 6. Occlusal contact point of mandibular buccal cusp on maxillary stone cast ๊ณ , ์ฒœ๊ณต๋œ๋ถ€์œ„๋ฅผ๋‘๋ถ€์˜์œ„์น˜๋งˆ๋‹ค๊ฐ๊ธฐ๋‹ค๋ฅธ 4๊ฐ€์ง€์˜์ƒ‰์—ฐํ•„๋กœํ‘œ์‹œํ•˜์—ฌ๊ตํ•ฉ์ ‘์ด‰์ ์˜์ด๋™์–‘์ƒ์„ํ™•์ธํ•˜์˜€๋‹ค.(Fig. 6) 5) ํ†ต๊ณ„ ๋‘๋ถ€์œ„์น˜๋ณ€ํ™”์—๋”ฐ๋ฅธ๊ฐ๊ฐ์˜์ด๊ตํ•ฉ์ ‘์ด‰์ ์ˆ˜๋ฅผ๊ตฌํ•˜๊ณ , ์ด๊ตํ•ฉ์ ‘์ด‰์ ์ˆ˜์—๋Œ€ํ•œํ‰๊ท , ํ‘œ์ค€ํŽธ์ฐจ, ์ตœ๋Œ€๊ฐ’๋ฐ์ตœ์†Œ๊ฐ’์„๊ตฌํ•˜์˜€๋‹ค. ๋˜ํ•œ, 0 ์•™์™€์œ„, 30, 60, 90 ์ •์ขŒ์œ„์—์„œ์˜๊ตํ•ฉ์ ‘์ด‰์ ์ˆ˜์˜๋ณ€ํ™”์—๋Œ€ํ•œ์œ ์˜์„ฑ์„ํŒ์ •ํ•˜๊ธฐ์œ„ํ•˜์—ฌ, t-test : Paried Two-Sample for means๋ฅผ์‹œํ–‰ํ•˜์˜€๋‹ค. Fig. 7. Variation of numbers of contact point on the six-anterior teeth region due to each head angulation โ…ข. ์—ฐ๊ตฌ์„ฑ์  1. ๊ตํ•ฉ์ ‘์ด‰์ ์ˆ˜์—๊ด€ํ•œํ†ต๊ณ„ 1) ์„ฑ์ธ์ •์ƒ๊ตํ•ฉ์ธ์˜๊ตํ•ฉ์ ‘์ด‰์ ์ˆ˜์—๋Œ€ํ•ด์„œ๋Š”, ์ „์น˜๋ถ€, ์†Œ๊ตฌ์น˜๋ถ€, ๋Œ€๊ตฌ์น˜๋ถ€์—์„œ๋ชจ๋‘ 90 ์—์„œ๊ฐ€์žฅ๋งŽ์€์ ‘์ด‰๊ณผ 0 ์—์„œ๊ฐ€์žฅ์ ์€์ ‘์ด‰์„๋ณด์˜€๋‹ค. ์ „์น˜๋ถ€์—์„œ๋Š” 90 ์—์„œ์ตœ๋Œ€ 13, ์ตœ์†Œ 5๊ฐœ๋กœ๋งŽ์€์ ‘์ด‰์ ์„๋‚˜ํƒ€๋‚ด์—ˆ์œผ๋ฉฐ, 60 ์—์„œ๋Š”์ตœ๋Œ€ 13, ์ตœ์†Œ1๊ฐœ์˜์ ‘์ด‰์ ์„, 30 ์—์„œ๋Š”์ตœ๋Œ€ 11๊ฐœ, ์ตœ์†Œ 1๊ฐœ, 0 ์—์„œ๋Š”์ตœ๋Œ€ 11๊ฐœ, ์ตœ์†Œ 0๊ฐœ๋กœ์ ์€์ ‘์ด‰์ ์„๋‚˜ํƒ€๋‚ด์—ˆ๋‹ค. ์†Œ๊ตฌ์น˜๋ถ€์—์„œ๋„์—ญ์‹œ90 ์—์„œ์ตœ๋Œ€ 18๊ฐœ, ์ตœ์†Œ 5๊ฐœ๋กœ๋งŽ์€์ ‘์ด‰์ ์„๋ณด์˜€์œผ๋‚˜, 60 ์—์„œ์ตœ๋Œ€ 15๊ฐœ, ์ตœ์†Œ 2๊ฐœ, 30 ์—์„œ์ตœ๋Œ€ 16๊ฐœ, ์ตœ์†Œ 0๊ฐœ, 0 ์—์„œ์ตœ๋Œ€ 16๊ฐœ, ์ตœ์†Œ 0๊ฐœ๋กœ์ตœ๋Œ€์ ‘์ด‰์ ์€ 60 ์—์„œ๋ณด๋‹ค์˜คํžˆ๋ ค 30 ์™€ 0 ์—์„œ๋”๋งŽ์€์ ‘์ด‰์ ์ˆ˜๋ฅผ๋‚˜ํƒ€๋‚ด์—ˆ๋‹ค. ๋Œ€๊ตฌ์น˜๋ถ€์—์„œ๋„ 90 ์—์„œ์ตœ๋Œ€ 31๊ฐœ, ์ตœ์†Œ 9๊ฐœ๋กœ๋งŽ์€์ ‘์ด‰์ ์„๋‚˜ํƒ€๋‚ด์—ˆ๊ณ , 60 ์—์„œ์ตœ๋Œ€ 27๊ฐœ, ์ตœ์†Œ 7 ๊ฐœ, 30 ์—์„œ์ตœ๋Œ€ 26๊ฐœ, ์ตœ์†Œ 5๊ฐœ, 0 ์—์„œ์ตœ๋Œ€ 25๊ฐœ, ์ตœ์†Œ 3๊ฐœ๋กœ์ ์€์ ‘์ด‰์ ์ˆ˜๋ฅผ๋‚˜ํƒ€๋‚ด์—ˆ๋‹ค (Table 1-4, Fig. 7-9). 2) ์„ฑ์ธ์ •์ƒ๊ตํ•ฉ์ธ์˜๋‘๋ถ€๋ณ€ํ™”์—๋”ฐ๋ฅธ 30๋ช…์˜์น˜์•„์ ‘์ด‰์—๊ด€ํ•œํ†ต๊ณ„๋Š”ํ‘œ1๊ณผ๊ฐ™๋‹ค. 0, 30, 60, 90 ๋กœ์ ์ฐจ์ ์œผ๋กœ๋‘๋ถ€์˜์œ„์น˜๊ฐ€๋ณ€ํ™”๋˜์—ˆ์„๋•Œ, ์ „์ฒด์ ‘์ด‰์ ์ˆ˜๋Š”ํ‰๊ท  25.0, 29.69, 35.76, 42.62๊ฐœ๋กœ๋น„์ต-์ด์ฃผ์„  (ala-tragus line) ์—๋Œ€ํ•ด 90 ๊ฐ€๋ ์ˆ˜๋ก, ์ฆ‰์•™์™€์œ„์—์„œ์ •์ขŒ์œ„๋กœ๊ฐˆ์ˆ˜๋ก๋ณด๋‹ค๋งŽ์€์ ‘์ด‰์ด์ด๋ฃจ์–ด์ง์ด 772

Table. 1. Raw data of numbers of occlusal contact point due to each head angulation on the teeth. 773

Table. 2. Variation of numbers of contact point on the six-anterior teeth region due to each head ngulation. Table. 3. Variation of numbers of contact point on the premolar region due to each head angulation. Table. 4. Variation of numbers of contact point on the molar region due to each head angulation. Fig. 8. Variation of numbers of contact point on the premolar region due to each head angulation ๋‚˜ํƒ€๋‚ฌ์œผ๋ฉฐ, ๊ฐ๊ฐ์—๋Œ€ํ•œํ†ต๊ณ„ํ•™์ ์œ ์˜์ฐจ๊ฐ€์กด์žฌํ•จ์ด๋‚˜ํƒ€๋‚ฌ๋‹ค.(P<0.05) 2. ๋‘๋ถ€์œ„์น˜๋ณ€ํ™”์—๋”ฐ๋ฅธ์ ‘์ด‰์ ์˜์ด๋™๊ฒฝํ–ฅ ๋ชจ๋“ ํ”ผ๊ฒ€์ž๋Š”๋‘๋ถ€์˜์œ„์น˜๊ฐ€์•™์™€์œ„์—์„œ์ •์ขŒ์œ„๋กœ๋ณ€ํ•ด๊ฐ์—๋”ฐ๋ผ์น˜์•„์ ‘์ด‰์ ์˜์ˆ˜๊ฐ€์ฆ๊ฐ€ํ•˜๋Š”๊ฒฝํ–ฅ์„๋‚˜ํƒ€๋‚ด์—ˆ๋‹ค. ์ด๋Š” silicone bite์—์„œ์ฒœ๊ณต๋œ๋ถ€์œ„๋ฅผํ—ค์•„๋ ค๋ณด์•˜์„๋•Œ, ์ ‘์ด‰์ ์˜์ˆ˜์˜์ฆ๊ฐ€์™€๋ณ€์œ„๋กœ๋‚˜ํƒ€๋‚ฌ๋‹ค. 30 ๋ช…์˜ํ”ผ๊ฒ€์ž์ค‘ํ•˜์•…์˜์ฃผ์ ‘์ด‰์ ์ธํ˜‘์ธก๊ต๋‘์ •์˜์ ‘์ด‰์ ์œ„์น˜๊ฐ€ํ”ผ๊ฒ€์ž์˜๋‘๋ถ€์œ„์น˜๊ฐ€์•™์™€์œ„์—์„œ์ •์ขŒ์œ„๋กœ๋ณ€ํ•จ์—๋”ฐ๋ผ 19๋ช… (65%) ์—์žˆ์–ด์„œ๊ทผ์‹ฌ์ชฝ์œผ๋กœ์›€์ง์ธ๊ฒƒ์œผ๋กœ๋‚˜ํƒ€๋‚ฌ๋‹ค. Fig. 9. Variation of numbers of contact point on the molar region due to each head angulation 774

โ…ฃ. ์ด๊ด„๋ฐ๊ณ ์•ˆ ๊ตํ•ฉ์ ‘์ด‰์—๊ด€ํ•œ๋งŽ์€์—ฐ๊ตฌ๋“ค์ด๋Œ€๊ฐœํ•œํ•˜์•…์œ„์—์„œ์ฆ‰, ์•™์™€์œ„๋‚˜์ •์ขŒ์œ„์—์„œ๋งŒ๊ธฐ๋ก๋˜์—ˆ์„๋ฟ, ์•™์™€์œ„์—์„œ์ •์ขŒ์œ„๋กœ๋‘๋ถ€์œ„์น˜๋ณ€ํ™”์‹œํ•˜์•…๊ณจ์˜์ด๋™์—์˜ํ•œ์ ‘์ด‰์ ์˜๋ณ€ํ™”์—๋Œ€ํ•˜์—ฌ์„œ๋Š”๊ทธ์—ฐ๊ตฌ๊ฐ€์ ์—ˆ๋‹ค. ๊ทธ๋Ÿฌ๋‚˜์‹ค์ œ๋กœ์ž„์ƒ์—์„œ๊ตํ•ฉ์ ‘์ด‰์ ๊ฒ€์‚ฌ์‹œํ”ํžˆ์ˆ ์ž๊ฐ€ํ•˜๊ธฐ์‰ฌ์šดํ•œ์œ„์น˜์—์„œ๊ฒ€์‚ฌํ•˜๋Š”๊ฒฝํ–ฅ์ด์žˆ๊ณ , ๊ทธ๋Ÿฌ๋ฏ€๋กœ๊ตํ•ฉ์กฐ์ •์‹œ๋‘๋ถ€๊ฒฝ์‚ฌ๊ฐ€๋‹ฌ๋ผ์ง€๊ฒŒ๋˜๋ฉดํ™˜์ž๊ฐ€๋ถˆํŽธ๊ฐ์„ํ˜ธ์†Œํ•˜๋Š”์ผ์„๊ฐ„ํ˜น๋ณผ์ˆ˜์žˆ๋‹ค. ํ•˜์•…์˜์ž์„ธ์œ„๋Š”์ •์ขŒ์œ„์—์„œ์•™์™€์œ„๋กœ๊ฐˆ์ˆ˜๋กํ›„๋ฐฉ์œผ๋กœ๋ฐ”๋€Œ๊ฒŒ๋˜๋ฉฐ, ์ด๋Ÿฐ๋ณ€ํ™”๋Š”ํ•˜์•…์—๋ถ€์ฐฉ๋˜๊ฑฐ๋‚˜ํ•˜์•…์„์ง€์ง€ํ•˜๋Š”์—ฌ๋Ÿฌ์กฐ์ง๋“ค์ด์‹ ์žฅ๋˜๊ฑฐ๋‚˜๋Š˜์–ด๋‚˜๋Š”๊ฒƒ๊ณผ๊ด€๊ณ„๊ฐ€์žˆ๋‹ค (35). ๊ทธ๋Ÿฌ๋ฏ€๋กœ์šฐ๋ฆฌ๊ฐ€ํ”ํžˆ๋ฌด์‹ฌ์ฝ”์ง€๋‚˜์น ์ˆ˜์žˆ๋Š”๊ตํ•ฉ์กฐ์ •์˜์œ„์น˜๋Š”๋‘๋ถ€์˜์œ„์น˜์—์˜ํ–ฅ์„๋ฐ›๊ฒŒ๋œ๋‹ค. Mohl์€์ •์ขŒ์œ„์—์„œ์•™์•„์œ„๋กœ๋ถ€ํ„ฐ 30 ์ „๋ฐฉ์œผ๋กœ๋‘๋ถ€๋ฅผ๊ฒฝ์‚ฌ์‹œ์ผฐ์„๋•Œ, ์ƒ๋ฆฌ์ ์•ˆ์ •์œ„ (phsiologic rest position) ์—๋Œ€ํ•˜์—ฌ์—ฐ๊ตฌํ•˜์˜€๋Š”๋ฐ๋‘๋ถ€๊ฐ€์ ์ง„์ ์œผ๋กœํ›„๋ฐฉ์œผ๋กœ๊ฒฝ์‚ฌํ•˜๊ฒŒ๋˜๋ฉด์ƒ๋ฆฌ์ ์•ˆ์ •์œ„๋Š”ํ›„๋ฐฉ์œผ๋กœ์›€์ง์—ฌํ๊ตฌํ•˜๊ฒŒ๋˜๋Š”๋ฐ, ์ด๋•Œ๋Š”๋‹จ์ง€์ƒ๋ฆฌ์ ์•ˆ์ •์œ„์—์„œ์ค‘์‹ฌ๊ตํ•ฉ์œ„๋กœํ๊ตฌ๋ ๋ฟ์ด๋ฉฐ, ์ด์œ„์น˜์—์„œ๋”ํ›„๋ฐฉ์œผ๋กœ์ด๋™ํ•˜๋ฉด์•…๊ณจ์˜ํ๊ตฌ๋กœ๋Š”์ค‘์‹ฌ๊ตํ•ฉ์œ„์—์„œ CRO ์œ„์น˜์—๋”์šฑ๊ทผ์ ‘ํ•˜๊ฒŒ๋˜๋ฏ€๋กœํ™˜์ž์˜๋‘๋ถ€์œ„์น˜์˜๋ณ€ํ™”๋Š”์ค‘์š”ํ•˜๋‹ค๊ณ ํ•˜์˜€๋‹ค (36). ์ •์ขŒ์œ„์—์„œํ•˜์•…์˜์ž์„ธ์œ„์น˜๋Š”์ค‘์‹ฌ๊ตํ•ฉ์œ„ 2-4mmํ•˜๋ฐฉ์—์กด์žฌํ•˜๋ฉฐ์ด2-4mm๋ฅผ์•ˆ์ •๊ณต๊ทน (free way space) ์ด๋ผํ•œ๋‹ค. ๊ฑฐ์ƒ๊ทผ์ด์ˆ˜์ถ•ํ•˜๋ฉดํ•˜์•…์€๊ต๋‘๊ฐ„์œ„๋กœ๋˜‘๋ฐ”๋กœ์˜ฌ๋ผ๊ฐ„๋‹ค. ๊ทธ๋Ÿฌ๋‚˜์–ผ๊ตด์„ 45 ๊ฐ€๋Ÿ‰์ƒ๋ฐฉ์œผ๋กœ์˜ฌ๋ฆฌ๋ฉดํ•˜์•…์˜์ž์„ธ์„ฑ์œ„์น˜๋Š”์•ฝ๊ฐ„ํ›„๋ฐฉ์œผ๋กœ๋ฐ”๋€Œ๊ฒŒ๋œ๋‹ค. ์ด๋Ÿฐ๋ณ€ํ™”๋Š”ํ•˜์•…์—๋ถ€์ฐฉ๋˜๊ฑฐ๋‚˜ํ•˜์•…์—์ง€์ง€ํ•˜๋Š”์—ฌ๋Ÿฌ๊ฐ€์ง€์กฐ์ง๋“ค์ด์‹ ์žฅํ•˜๊ฑฐ๋‚˜๋Š˜์–ด๋‚˜๋Š”๊ฒƒ๊ณผ๊ด€๊ณ„๊ฐ€์žˆ๋‹ค (35). ์ด์œ„์น˜์—์„œ๊ฑฐ์ƒ๊ทผ์ด์ˆ˜์ถ•ํ•˜๋ฉด๋จธ๋ฆฌ๊ฐ€๋˜‘๋ฐ”๋กœ์žˆ์„๋•Œ๋ณด๋‹คํ๊ตฌ๋กœ๊ฐ€์•ฝ๊ฐ„ํ›„๋ฐฉ์—์žˆ๊ฒŒ๋˜๋ฏ€๋กœ์น˜์•„์ ‘์ด‰๋„์ค‘์‹ฌ๊ตํ•ฉ์œ„๋ณด๋‹คํ›„๋ฐฉ์—์„œ์ผ์–ด๋‚œ๋‹ค. ์ด์น˜์•„์œ„์น˜๋Š”๋ณดํ†ต๋ถˆ์•ˆ์ •ํ•˜๊ธฐ๋•Œ๋ฌธ์—ํ™œ์ฃผ๊ฐ€์žˆ๊ฒŒ๋˜๋ฉฐํ•˜์•…์„์ค‘์‹ฌ๊ตํ•ฉ์œ„๋กœ์˜ฎ๊ฒจ๊ฐ€๊ฒŒ๋œ๋‹ค (37). ๋ณธ์—ฐ๊ตฌ์—์„œ๋Š”๋‘๋ถ€์œ„์น˜์˜๊ฒฝ์‚ฌ๋ฅผ๋ฐ”๊ฟ€๋•Œ๋งˆ๋‹ค์ผ์–ด๋‚ ์ˆ˜์žˆ๋Š”์ค‘์‹ฌ๊ตํ•ฉ์œ„๋กœ์˜ํ™œ์ฃผ๋ฅผ๋ง‰๊ธฐ์œ„ํ•ด๊ฐ€๋ณ๊ฒŒ tapping์šด๋™์„ํ•˜์—ฌ๊ทธ์œ„์น˜๊ฐ€์ธ๊ธฐ๋˜๋„๋กํ•˜์˜€์œผ๋ฉฐ, ๋‘๋ถ€์˜๊ฐ๋„๋ฅผ์ ์ฐจ์ ์œผ๋กœ์ฆ๊ฐ€์‹œํ‚ด์—๋”ฐ๋ผํ•˜์•…์˜ํ๊ตฌ๋กœ๊ฐ€๋ณ€ํ™”๋จ์„, ์ ‘์ด‰์ ์„์ธ๊ธฐํ•จ์œผ๋กœ์จ๋‚˜ํƒ€๋‚ด์—ˆ๋‹ค. ์ด๋ฐ–์—๋„ unt chair์—์„œ๋‚˜ํƒ€๋‚ ์ˆ˜์žˆ๋Š”์ž์„ธ์ด์™ธ์—์–ผ๊ตด์ด 30 ํ•˜๋ฐฉ์œผ๋กœํ–ฅํ•˜๊ฒŒ๋˜๋Š”์‹์‚ฌ์‹œ์ž์„ธ ( ์‹์‚ฌ์œ„ ) (38) ๋‚˜45 ๋กœ๋จธ๋ฆฌ๊ฐ€์ –ํ˜€์ง€๋Š”๋ฌด์—‡์„๋งˆ์‹ค๋•Œ์˜์ž์„ธ๋„ํ๊ตฌ๋กœ๋ฅผ๋ณ€ํ™”์‹œํ‚ฌ์ˆ˜์žˆ์–ด์ค‘์š”ํ•˜๊ฒŒ๊ณ ๋ ค๋˜์–ด์ง„๋‹ค. ์‹์‚ฌ์œ„์—์„œ๋Š”, ์ด์œ„์น˜์—์„œํ•˜์•…์€์ •์ขŒ์œ„๋ณด๋‹ค์•ฝ๊ฐ„์ „๋ฐฉ์œผ๋กœ์˜ฎ๊ฒจ๊ฐ€๊ฒŒ๋˜๊ณ ๊ฑฐ์ƒ๊ทผ์ด์ˆ˜์ถ•ํ•˜๊ฒŒ๋˜๋ฉดํ๊ตฌ๋กœ๋Š”๋˜ํ•œ์ •์ขŒ์œ„์—์„œ๋ณด๋‹ค์ „๋ฐฉ์œผ๋กœ๋†“์ด๊ฒŒ๋œ๋‹ค. ๋”ฐ๋ผ์„œ์น˜์•„์ ‘์ด‰๋„์ค‘์‹ฌ๊ตํ•ฉ์œ„๋ณด๋‹ค์ „๋ฐฉ์—์„œ์ผ์–ด๋‚˜๊ฒŒ๋œ๋‹ค. ํ๊ตฌ์‹œ์˜์ด๋Ÿฐ๋ณ€ํ™”๋กœ์ธํ•˜์—ฌ์‹ฌํ•œ์ „์น˜๋ถ€์ ‘์ด‰์ด์žˆ๊ฒŒ๋œ๋‹ค. 45 ๋กœ๋จธ๋ฆฌ๋ฅผ์ –ํžŒ์ž์„ธ๋„์—ญ์‹œ์ค‘์š”ํ•œ๋ฐ์ด๋Š”ํ”ํžˆ๋ฌด์—‡์„๋งˆ์‹ค๋•Œ์ทจํ•˜๊ฒŒ๋˜๋Š”๋จธ๋ฆฌ์˜์ž์„ธ์ด๊ธฐ๋•Œ๋ฌธ์ด๋‹ค. ์ด์œ„์น˜์—์„œํ•˜์•…์€์ค‘์‹ฌ๊ตํ•ฉ์œ„๋ณด๋‹คํ›„๋ฐฉ์—๋†“์ด๊ฒŒ๋˜๋ฏ€๋กœ๋จธ๋ฆฌ๊ฐ€ํ›„๋ฐฉ์—๋†“์ธ์ฑ„ํ๊ตฌํ•˜๊ฒŒ๋˜๋ฉด์ค‘์‹ฌ๊ตํ•ฉ์œ„๋ณด๋‹คํ›„๋ฐฉ์—์„œ์น˜์•„์ ‘์ด‰์ด์žˆ๊ฒŒ๋œ๋‹ค (37). ๋‘๋ถ€๊ฒฝ์‚ฌ์˜๋ณ€ํ™”์‹œํ•˜์•…ํ๊ตฌ๋กœ์ด๋™์œผ๋กœ์ธํ•œ์ ‘์ด‰์ ์˜๋ณ€ํ™”์—๊ด€ํ•œ์—ฐ๊ตฌ๋Š” Chapman (18), Koidis (21), Mclean (39) ๊ณผ๊ตญ๋‚ด์—์„œ๋Š”๊น€ (40) ๋“ฑ์—์˜ํ•ด์ด๋ฃจ์–ด์กŒ๋Š”๋ฐ, Chapman (18) ์€ supine, sitting, head forward์˜์ž์„ธ์—์„œ T-scan์„์ด์šฉํ•˜์—ฌ์ดˆ๊ธฐ 5๊ฐœ์˜์ ‘์ด‰์—๋Œ€ํ•œ์น˜์•„์ ‘์ด‰์œ„์น˜์˜๋ณ€ํ™”๊ฐ€๋‘๋ถ€์˜์œ„์น˜๋ณ€ํ™”์™€๊ด€๋ จ์ด์žˆ์œผ๋‚˜, ์ตœ๋Œ€๊ตํ•ฉ์ƒํƒœ์—์„œ๋Š”๋‘๋ถ€์˜์œ„์น˜๋ณ€ํ™”๊ฐ€ํฌ๊ฒŒ์˜ํ–ฅ์„๋ฏธ์น˜์ง€์•Š๋Š”๋‹ค๊ณ ๋ณด๊ณ ํ•˜์˜€๊ณ , Koidis (21) ๋Š”๊ฐ๊ธฐ๋‹ค๋ฅธ 9๊ฐœ (50 ์ „๋ฐฉ--30 ํ›„๋ฐฉ) ์ž์„ธ์œ„์—์„œ์˜๊ตํ•ฉ์ ‘์ด‰์œ ํ˜•์„ special photoplastic sheet์œผ๋กœ๋น„๊ตํ•˜์—ฌ์ „์น˜๋ถ€๋Š” 20 ์ „๋ฐฉ์˜๋‘๋ถ€์œ„์น˜์—์„œ๊ฐ€์žฅ๊ท ๋“ฑํ•œ strain distribution์ด๋‚˜ํƒ€๋‚˜๋ฉฐ, ๊ตํ•ฉ์กฐ์ •์‹œ์ž์„ธ์„ฑ์œ„์น˜์˜๊ณ ๋ ค๊ฐ€ํ•„์š”ํ•˜๋‹ค๊ณ ํ•˜์˜€๋‹ค. Mc-Lean (39) ์€ electrictilt table์„์ด์šฉํ•œ์ฒด์œ„๋ณ€ํ™”์‹œํšจ๊ณผ์—๊ด€ํ•œ์—ฐ๊ตฌ๋กœ์ •์ขŒ์œ„๋กœ๊ฐˆ์ˆ˜๋ก์ ‘์ด‰์ ์ˆ˜์˜์ฆ๊ฐ€๋ฐ์ ‘์ด‰์ ์˜๊ทผ์‹ฌ์ด๋™์„๋ณด๊ณ ํ•˜์˜€์œผ๋ฉฐ, ์ด๋•Œํ˜‘๊ทผ์˜๊ทผ์ „๋„ํ™œ์„ฑ๋„๋ฅผ์ธก์ •ํ•˜์—ฌ์ฒด์œ„์˜๋ณ€ํ™”๊ฐ€ํ•˜์•…์˜์•ˆ์ •์œ„์œ ์ง€๋ฅผ์œ„ํ•œ๊ทผ์‹ ๊ฒฝ๊ณ„์˜ํ™œ์„ฑ์—๋ณ€ํ™”๋ฅผ์ผ์œผํ‚จ๋‹ค๊ณ ๋ณด๊ณ ํ•˜์˜€๋‹ค. ๊น€๋“ฑ (40) ์€ upright, semisupine, supine์˜์ž์„ธ์—์„œ์˜์Šต๊ด€์ ํ๊ตฌ์™€์ตœ๋Œ€ํ๊ตฌ์‹œ์ ‘์ด‰์ ์ˆ˜์™€ํ๊ตฌ์‹œ๊ฐ„์„ T-scan์„์ด์šฉํ•˜์—ฌ๋น„๊ตํ•˜์˜€๋Š”๋ฐ, ์Šต๊ด€์ ํ๊ตฌ์‹œ๊ฐ€์ตœ๋Œ€ํ๊ตฌ์‹œ๋ณด๋‹ค์ ์€์ ‘์ด‰์ ์„๊ฐ€์กŒ์œผ๋ฉฐ, ์ด๋Š” Riisse์™€ 775

Ericsson์˜์•ฝ์••๋ฐ๊ฐ•์••์—์„œ์˜๊ตํ•ฉ์ ‘์ด‰์ ๋ถ„์„์—๊ด€ํ•œ์—ฐ๊ตฌ (5, 17) ์™€๋„์ผ์น˜ํ•˜๊ณ ์žˆ๋‹ค. ๊ทธ๋Ÿฌ๋‚˜, ๊น€๋“ฑ์˜์—ฐ๊ตฌ์—์„œ๋Š”์ž์„ธ๋ณ€ํ™”์—๋”ฐ๋ฅธํ†ต๊ณ„ํ•™์ ์ธ์œ ์˜ํ•œ์ฐจ๊ฐ€๋‚˜ํƒ€๋‚˜์ง€์•Š์•„์ด์ „์˜์—ฐ๊ตฌ๋ฐ๋ณธ์—ฐ๊ตฌ์™€์ผ์น˜ํ•˜์ง€์•Š์•˜๋‹ค. ๊น€๋“ฑ์˜์—ฐ๊ตฌ๋ฅผ์ œ์™ธํ•œ์ด์ „์˜์—ฐ๊ตฌ๋ฅผ์ข…ํ•ฉํ•ด๋ณด๋ฉดํ•˜์•…์ด์ „๋ฐฉ์œผ๋กœ๊ฐˆ์ˆ˜๋ก์ ‘์ด‰์ ์€์ „๋ฐฉ์œผ๋กœ์ด๋™ํ•˜๋ฉฐ, ํŠนํžˆ์ „์น˜๋ถ€์˜์ ‘์ด‰์„ํฌํ•จํ•œ์ „์ฒด์ ‘์ด‰์ ์ˆ˜๊ฐ€์ฆ๊ฐ€ํ•˜๊ฒŒ๋จ์„๋ณด๊ณ ํ•˜๊ณ ์žˆ์œผ๋ฉฐ, ๋ณธ์‹คํ—˜์—์„œ๋„์ด์™€์ผ์น˜ํ•จ์„๋ณด์ด๊ณ ์žˆ๋‹ค. ํ•œํŽธ, ๊ต๋‘๊ฐํ•ฉ์œ„์—์„œ์˜์น˜์•„์ ‘์ด‰์€์ž์—ฐ์น˜์—ด์—์„œ์ ‘์ด‰์˜๋ณธ์งˆ์„์ดํ•ดํ•˜๊ณ , ์ •ํ™•ํ•œ์ง„๋‹จ, ์น˜๋ฃŒ, ๋ฐ์ˆ˜๋ณต์„๊ณ„ํšํ•˜๋Š”๋ฐ์žˆ์–ด์ค‘์š”ํ•˜๋‹ค (41). ๊ตํ•ฉ์ ‘์ด‰์ ํ‰๊ฐ€์—์‚ฌ์šฉ๋˜๋Š”์žฌ๋ฃŒ๋Š”๊ฐ€๋Šฅํ•œ์–‡๊ณ ์ •ํ™•ํ•˜๊ณ ๊ฒฝํ™”์‹œ๊ฐ„์ด์งง์œผ๋ฉฐ์žฌํ˜„์„ฑ์ด๋†’์•„์•ผํ•œ๋‹ค (12). ๊ตํ•ฉ์ ‘ํ•ฉ์ ์ˆ˜์—์˜ํ–ฅ์„๋ฏธ์น˜๋Š”์š”์†Œ๋กœ๋Š”๊ตํ•ฉ์ ‘์ด‰์„์ธก์ •ํ•˜๋Š”๊ธฐ๊ตฌ์˜์œ ํ˜• (10, 11, 12, 13, 14), ๊ตํ•ฉ๋ ฅ (5, 17), ๋‘๊ป˜ (15, 16), ์‹œ๊ฐ„ (6, 20) ๋“ฑ์„๊ณ ๋ คํ•˜์—ฌ์•ผํ•œ๋‹ค. Friel (8) ์€๊ต๋‘๊ฐํ•ฉ์œ„๋ž€์ตœ๋Œ€๊ตํ•ฉ์ ‘์ด‰์„๊ฐ€์งˆ๋•Œ๋ผ๊ณ ํ•˜์˜€๊ณ , Woda๋“ฑ (42) ์€์ค‘์‹ฌ๊ตํ•ฉ์œ„์ ‘์ด‰์ด๋Š˜์ด์ƒ์ ์ธ๊ตํ•ฉ์œ„์น˜์™€์ผ์น˜ํ•˜๋Š”๊ฒƒ์€์•„๋‹ˆ๋ผ๊ณ ํ•˜์˜€์œผ๋ฉฐ, Hochman๊ณผ Ehrlich (43) ๋Š”ํ˜•ํƒœ์ ์œผ๋กœ์ข‹์€๊ตํ•ฉ์ด๋ผ๊ณ ํ•ด์„œ์ด์ƒ์ ์ธ๊ตํ•ฉ์ ‘์ด‰์œ„์น˜๋‚˜์ตœ๋Œ€๊ตํ•ฉ์ ‘์ด‰์ ์ˆ˜๋ฅผ๊ฐ–๋Š”๊ฒƒ์€์•„๋‹ˆ๋ผ๊ณ ํ•˜์˜€๋‹ค. ๊ตํ•ฉ์ ‘์ด‰์ ์ˆ˜๋ฐ์œ„์น˜์—๊ด€ํ•œ์„ ํ•™๋“ค์˜์—ฐ๊ตฌ๋ฅผ๋ณด๋ฉด, Ehrich์™€ Taicher (41) ๋Š”๊ต๋‘๊ฐํ•ฉ์œ„์—์„œ์น˜์•„์ ‘์ด‰์œ„์น˜์™€์ˆ˜๋ฅผ๊ธฐ๋กํ•˜์˜€๋Š”๋ฐ, ํ•˜์•…์ œ1 ๋Œ€๊ตฌ์น˜์—์„œ๊ฐ€์žฅ๋งŽ์€์ ‘์ด‰์ ์ˆ˜๋ฅผ๋ณด์˜€๊ณ , ์ œ2๋Œ€๊ตฌ์น˜์—์„œ๊ฐ•ํ•œ์ ‘์ด‰์ด๋งŽ๋‹ค๊ณ ํ•˜์˜€๋‹ค. Beyron (44) ์€ํ˜ธ์ฃผ์›์ฃผ๋ฏผ์˜๊ต๋‘๊ฐํ•ฉ์œ„์—์„œ์˜๊ตํ•ฉ์ ‘์ด‰์ด์ œ1์†Œ๊ตฌ์น˜์—์„œ์ œ2๋Œ€๊ตฌ์น˜์‚ฌ์ด์—์–‘์ธก์„ฑ์œผ๋กœ๋ถ„ํฌํ•œ๋‹ค๊ณ ํ•˜์˜€๋‹ค. Korioth (45) ๋Š”๊ต๋‘๊ฐํ•ฉ์œ„์—์„œ์ขŒ์šฐ์ ‘์ด‰์ ์ˆ˜๊ฐ€๋™์ผํ•œ๊ฒฝ์šฐ๊ฐ€ 6๋ช…, ๋‚˜๋จธ์ง€ 39๋ช…์—์„œ 1 ๊ฐœ์ด์ƒ์˜์ขŒ์šฐ์ธก์ ‘์ด‰์ ์ˆ˜์˜์ฐจ์ด๋ฅผ๋ณด์˜€์œผ๋ฉฐ, ๊ตฌ์น˜๋ถ€์ ‘์ด‰์˜ํ‰๊ท ์ˆ˜๊ฐ€ 9.6๊ฐœ์ด๊ณ , ์ „์น˜๋ถ€์—์„œ๋Š” 18% ์—์„œ๊ตํ•ฉ์ ‘์ด‰์ด์—†์—ˆ๊ณ  82% ์—์„œ์ ์–ด๋„ํ•œ๊ฐœ์ด์ƒ์˜๊ตํ•ฉ์ ‘์ด‰์„๊ฐ€์ง„๋‹ค๊ณ ๋ณด๊ณ ํ•˜์˜€๋‹ค. Filschev (46) ๋Š”์ค‘์‹ฌ๊ตํ•ฉ์œ„์—์„œ์ ‘์ด‰์ ์˜์ˆ˜์™€์œ„์น˜๋ฅผ๊ธฐ๋กํ•˜์˜€๋Š”๋ฐ, ํ‰๊ท  72.29๊ฐœ์˜์ ‘์ด‰์„๊ฐ–๊ณ , 89.54% ์—์„œ์ค‘์‹ฌ๊ตํ•ฉ์ ‘์ด‰์ดํ›„๋ฐฉ๊ตฌ์น˜์‚ฌ์ด์—์žˆ๋‹ค๊ณ ํ•˜์˜€๋‹ค. Anderson๊ณผ Myer (47) ๋Š”๊ตฌ์น˜๋ถ€์น˜์•„์˜ 4% ์—์„œ์ ‘์ด‰์ด๋ฐœ์ƒํ•˜์ง€์•Š๋Š”๋‹ค๊ณ ํ•˜์˜€๊ณ , Riise (17) ๋Š”์•ฝ์••์—์„œ 10.8๊ฐœ์ด๊ณ ๊ฐ•์••์—์„œ 17.6๊ฐœ์˜์ ‘์ด‰์ ์ˆ˜๋ฅผ๋ณด๊ณ ํ•˜์˜€์œผ๋ฉฐ, Mcnamara ์™€ Henry (48) ๋Š” 18.5๊ฐœ์ด๊ณ , Zeibert์™€ Denegan (49) ๋“ฑ์€ 28.4๊ฐœ๋ผ๊ณ ํ•˜์˜€๋‹ค. Filschev (46), Ash์™€ Ramfjord (50), Okeson (51) ๋“ฑ์€์ด์ƒ๊ตํ•ฉ์˜์ˆ˜๊ฐ€ 20-40๊ฐœ์‚ฌ์ด์—์žˆ๋‹ค๊ณ ํ•˜์˜€๊ณ , ๊ตญ๋‚ด์—์„œ๋Š”์—ฐ๋“ฑ (52) ์ด์ •์ƒ์น˜์—ด์„๊ฐ€์ง„์„ฑ์ธ์—์„œ์ธก๋‘๊ทผ์ „๋ถ€์˜ํ™œ์„ฑ๋„์—๋”ฐ๋ฅธ๊ตํ•ฉ๋ ฅ์ด์ฆ๊ฐ€ํ•จ์—๋”ฐ๋ผ๊ตํ•ฉ์ ‘์ด‰์ ์ˆ˜๋Š”์œ ์˜ํ•œ์ฆ๊ฐ€๋ฅผ๋ณด์ธ๋‹ค๊ณ ๋ณด๊ณ ํ•˜์˜€์œผ๋ฉฐ, ๊น€๋“ฑ (53) ์€์ค‘์‹ฌ๊ตํ•ฉ์œ„์—์„œ์˜๊ตํ•ฉ์ ‘์ด‰์ ์ˆ˜๋ฅผ์‹ค๋ฆฌ์ฝ˜์œผ๋กœ์ฑ„๋“ํ•˜์˜€๋Š”๋ฐ, ์ „์น˜๋ถ€์ ‘์ด‰์†Œ๋ฉด์€์ƒ์•…์—์„œํ‰๊ท  6.35 ๊ฐœ์˜€๊ณ ๊ตฌ์น˜๋ถ€์—์„œ๋Š”ํ‰๊ท  35.99๊ฐœ๋กœ๋ณด๊ณ ํ•˜์˜€๋‹ค. ๋˜ํ•œ, ์ฑ„๋“ฑ (54) ์€๊ตํ•ฉ์ ‘์ด‰์ ์ˆ˜๋ฅผ์‹ค๋ฆฌ์ฝ˜๊ตํ•ฉ์ธ๊ธฐ์™€ T-scan์—์„œ๋น„๊ตํ•˜์˜€๋Š”๋ฐ๊ฐ๊ฐ์ „์น˜๋ถ€์—์„œ6.77๊ฐœ์™€ 5.99๊ฐœ, ์†Œ๊ตฌ์น˜๋ถ€๋ฐ๋Œ€๊ตฌ์น˜๋ถ€์—์„œ๋Š” 34.99๊ฐœ์™€ 27.40๊ฐœ๋กœ์‹ค๋ฆฌ์ฝ˜๊ตํ•ฉ์ธ๊ธฐ๊ฐ€๋”๋งŽ์€์ ‘์ด‰์ ์ˆ˜๋ฅผ๋‚˜ํƒ€๋‚ด์—ˆ์œผ๋‚˜์ด๋Š” T-scan๊ฐ์••์ง€์˜ํŠน์„ฑ์ƒ์ธ์ ‘ํ•ด์„œ์œ„์น˜ํ•œ๊ตํ•ฉ์ ‘์ด‰์ ์ดํ•˜๋‚˜์˜์ปค๋‹ค๋ž€์ ‘์ด‰๋ฉด์„์ด๋ฃจ์–ด๋‚˜ํƒ€๋‚˜๊ธฐ๋•Œ๋ฌธ์ด๋ฉฐ, ์ด๋“ค๋‘๋ฐฉ๋ฒ•๊ฐ„์—์œ ์˜ํ•œ์ฐจ์ด๋Š”์—†๋Š”๊ฒƒ์œผ๋กœ๋ณด๊ณ ํ•˜์˜€๋‹ค. ๋ณธ์—ฐ๊ตฌ์—์„œ๋„์ •์ขŒ์œ„์—์„œ์ ‘์ด‰์ ์ˆ˜๊ฐ€์ „์น˜๋ถ€์—์„œ๋Š” 7.14๊ฐœ๋กœ, ๊ตฌ์น˜๋ถ€์—์„œ๋Š” 34.49๊ฐœ๋กœ๋‚˜ํƒ€๋‚˜, Filschev( 46), ๊น€๋“ฑ (53), ์ฑ„๋“ฑ (54) ์˜์—ฐ๊ตฌ์™€์œ ์‚ฌํ•œ๊ฒฐ๊ณผ๋ฅผ๋‚˜ํƒ€๋‚ด์—ˆ๋‹ค. ๋ณธ์—ฐ๊ตฌ์˜๊ฒฐ๊ณผ๋ฅผ์ข…ํ•ฉ๋ถ„์„ํ•ด๋ณด๋ฉด์–‘์™€์œ„์—์„œ์ •์ขŒ์œ„๋กœ๊ฐˆ์ˆ˜๋ก, ์ฆ‰ํ•˜์•…์ด์ „๋ฐฉ์œผ๋กœ์ด๋™ํ• ์ˆ˜๋ก์ „์น˜๋ถ€์ ‘์ด‰์˜์ฆ๊ฐ€์™€๋”๋ถˆ์–ด์ „์ฒด๊ตํ•ฉ์ ‘์ด‰์ ์ˆ˜๊ฐ€์ฆ๊ฐ€ํ•จ์„๋ณด์˜€๊ณ , ๊ตฌ์น˜๋ถ€์ ‘์ด‰์ ๋“ค๋„๊ทผ์‹ฌ์ธก์œผ๋กœ์ด๋™ํ•จ์„๋‚˜ํƒ€๋‚ด์—ˆ๋‹ค. ๊ทธ๋Ÿฌ๋‚˜, ๊ฐ๊ฐ์˜ํ”ผ๊ฒ€์ž์˜๊ตํ•ฉ๋ ฅ์˜์ฐจ์ด๋ฅผ๊ณ ๋ คํ•˜์ง€์•Š์•˜๊ณ , ๊ฐ€๋ฒผ์šด tapping์šด๋™์œผ๋กœํ๊ตฌ์‹œ์ผฐ์œผ๋‚˜์ค‘์‹ฌ๊ตํ•ฉ์œ„๋กœ๋ฏธ๋Œ์–ด์ง์„ํ™•์ธํ• ์ˆ˜์—†์—ˆ์œผ๋ฉฐ, ์ €์ž์—์˜ํ•ด๊ณ ์•ˆ๋œ๊ฒฝ์‚ฌํŒ์ด๋ณด๋‹ค์ •๋ฐ€ํ•˜์ง€๋ชปํ•˜์˜€๊ธฐ์—๋‹ค์†Œ์˜์˜ค์ฐจ๊ฐ€๋ฐœ์ƒํ• ์ˆ˜์žˆ์—ˆ์œผ๋ฆฌ๋ผ์‚ฌ๋ฃŒ๋œ๋‹ค. ๋˜ํ•œ๋‘๋ถ€์œ„์น˜์˜๋ณ€ํ™”์—๋”ฐ๋ฅธ๊ตํ•ฉ๋ ฅ์„๊ฐ๊ฐ์ธก์ •ํ•˜์—ฌ์ ‘์ด‰์ ๋ฟ๋งŒ์•„๋‹ˆ๋ผ๊ตํ•ฉ๋ ฅ์˜๋ณ€ํ™”์—๋”ฐ๋ฅธ๊ทผ์ „๋„๋ฅผ์ด์šฉํ•œ๊ทผ์œก์˜ํ™œ์„ฑ๋„์˜๋ณ€ํ™”๋ฅผ๊ณ ๋ คํ•œ๋”์šฑ๋”ํญ๋„“์€์•ž์œผ๋กœ์˜์—ฐ๊ตฌ๊ฐ€ํ•„์š”ํ• ๊ฒƒ์œผ๋กœ์‚ฌ๋ฃŒ๋œ๋‹ค. 776

โ…ค. ๊ฒฐ๋ก  ์น˜์ฃผ์ƒํƒœ๋‚˜์•…๊ด€์ ˆ์ฆ์ƒ์ด์—†๋Š”์„ฑ์ธ์ •์ƒ๊ตํ•ฉ์ž 30 ๋ช… ( ๋‚จ์ž 17๋ช…, ์—ฌ์ž 13 ๋ช… ) ์˜๋‘๋ถ€๋ณ€ํ™” (0 ์•™์™€์œ„, 30 ์œ„, 60 ์œ„, 90 ์ •์ขŒ์œ„ ) ์—๋”ฐ๋ฅธ์Šต๊ด€์ ํ๊ตฌ๋กœ์—์„œ์˜๊ตํ•ฉ์ ‘์ด‰์ ์ˆ˜๋ฐ๋ถ„ํฌ์˜๋ณ€ํ™”๋ฅผ black silicone์„์ด์šฉํ•˜์—ฌ๊ตํ•ฉ์ธ๊ธฐ๋ฅผ์ฑ„๋“ํ•˜์—ฌ๊ด€์ฐฐํ•œ๊ฒฐ๊ณผ, ๋‹ค์Œ๊ณผ๊ฐ™์€๊ฒฐ๋ก ์„์–ป์—ˆ๋‹ค. 1. ๋น„์ต-์ด์ฃผ์„ ์—๋Œ€ํ•ด 0 ์•™์™€์œ„, 30, 60, 90 ์ •์ขŒ์œ„์˜๋‘๋ถ€์œ„์น˜์—์„œ๊ณ„์ธกํ•œ์ด๊ตํ•ฉ์ ‘์ด‰์ ์ˆ˜๋Š”ํ‰๊ท  25, 29, 35, 42๊ฐœ๋กœ์•™์™€์œ„์—์„œ์ •์ขŒ์œ„๋กœ๊ฐˆ์ˆ˜๋ก๋ณด๋‹ค๋งŽ์€์ ‘์ด‰์ด์ด๋ฃจ์–ด์กŒ๊ณ , ์ด์—๋Œ€ํ•œํ†ต๊ณ„ํ•™์ ์œ ์˜์ฐจ๊ฐ€์žˆ๋Š”๊ฒƒ์œผ๋กœ๋‚˜ํƒ€๋‚ฌ๋‹ค.(P<0.05) 2. ์ด 30 ๋ช…์˜ํ”ผ๊ฒ€์ž์ค‘ 65% ์ธ 19 ๋ช…์˜ํ”ผ๊ฒ€์ž์—์„œ๋‘๋ถ€์œ„์น˜๋ฅผ์•™์™€์œ„์—์„œ์ •์ขŒ์œ„๋กœ๋ณ€ํ™”์‹œํ‚ด์—๋”ฐ๋ผ silicone bite์˜์ฒœ๊ณต๋ถ€์œ„๊ฐ€๊ทผ์‹ฌ์ชฝ์œผ๋กœ์ด๋™ํ•˜๋Š”๊ฒƒ์œผ๋กœ๋‚˜ํƒ€๋‚ฌ๋‹ค. 3. ์•™์™€์œ„์—์„œ์ •์ขŒ์œ„๋กœ๊ฐˆ์ˆ˜๋ก์ „์น˜๋ถ€์ ‘์ด‰์ ์˜์ฆ๊ฐ€๋กœ๋ฏธ๋ฃจ์–ดํ•˜์•…๊ณจ์˜์ „๋ฐฉ์ด๋™์ด์ด๋ฃจ์–ด์ง์„์•Œ์ˆ˜์žˆ์—ˆ๋‹ค. Reference 1. Hochman, N., Ehrlich, J. : Tooth contact location in intercuspal position. Quintessence Int., 18 : 193-196, 1987. 2. Celenza, F.V.,Nasedkin, J.N. : Occlusion-The state of the Art. Chicago, Quintessence Pub. Co., 1978. 3. Krogh-Pulsen, W.G., Olsson. : A management of the occlusion of the teeth. Parts โ… &โ…ก. In L. Schwartz et. al.(eds) facial pain and madibular dysfunction. Philadelphia, W.B.saunders Co., 1968. 4. Anderson, I. R.,Myers, G.E. : Nature of contacts in centric occlusion in 32 adults. J.Dent.Res., 50 : 7, 1971. 5. Riise, L., Ericsson, S.G. : A clinical study of the distribution of occlusal tooth contacts in the intercuspal position at light and hard pressure in adults. J. Oral Rehabil., 10 : 473-480, 1938. 6. Berry, D.C., Singh, B.P. : Diurnal Variations in occlusal contacts.j.prosthet.dent., 50 : 386-391, 1983. 7. Shikholeslam, A., Riise, C. : Influence of experimental occlusal contacts on the activity of the anterior temporal and masseter muscle during submaximal and maximal bite in the intercuspal position. J. Oral Rehabil., 10 : 207-214, 1983. 8. Friel, S. : Occlusion, Observation on its development from infancy to old age. Int. J. orthod., 13 : 323, 1977. 9. Hekkman, M. : Factors influencing Occlusion. Angle Orthod., 13 : 327, 1942. 10. Millstein, P.L. : An evaluation of occlusial contact mar king indicators ; A descriptive, Qualitative method. Quintessence Int., 14 : 813-818, 1983. 11. Dawson, P.e., Arcan, M. : Attaing harmonid occlusion through visualized strain analysis. J.Prothet. Dent., 46 : 615-622, 1981. 12. Gazit, E., Filzig, S. & Lieberman, M.A. : Reproducibility of occlusal marking techniques. J. Prothet. Dent., 55 : 505-509, 1986. 13. Gazit, E., Lieberman, M.A. : The intercuspal surface comtact area registration : An additional tool for evaluation of normal occlusion. Angle Orthod., 43 : 96-106, 1973. 14. Anderson, R.J., Myers, G.E. : Nature of contacts in centric occlusion in 32 Adults. J.Dent.Res., 50 : 7-13, 1971. 15. Harprin, G., Halperin, A., & Norling, B. : Thickness, stregth, and plastic deformation of occlusal registration strips. J.Prothet. Dent., 48 : 575-578, 1982. 16. Schelb, E., Kaiser. P., & Brukl, C. : Thickness and Marking Characteristics for Occlusal registration strip. J. Prothet. Dent., 54 : 122-126, 1985. 17. Riise, C. : A Clinical Study of the number of occlusal tooth contacts in intercuspal position at light and hard pressure in adults. J.Oral Rehabil., 9 : 469-477, 1982. 18. Chapman, R.J., Maness, W.L., & Osorio, J. : Occlusal contact variation with changes in head position. Int. J. Prothodont., 4 : 377-381, 1991. 19. McLean, L.F., Brenman, H.S., & Friedman, M.G.F. : Effects of changing body position on dental occlusion. J. Dent. Res., 52 : 1041-1045, 1973. 20. Molligoda, M. A., Berry, D.C., & Gooding, P.G. : Measuring diumal variations in occlusal registration strip. J. Prosthet. Dent., 54 : 122-126, 1985. 21. Koidis, P., et. al. : Influence of postural position 777

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=Abstract= A STUDY OF OCCLUSAL CONTACT VARIATON DUE TO CHANGE IN EACH HEAD POSITION IN NORMAL OCCLUSION Hee-Cheol Choi, Sung-Bok Lee, Dae-Gyun Choi, Nam-Soo Park Department of Prosthodontics, College of Dentistry, Kyung Hee University The understanding the nature of occlusal tooth contacts of natural dentition is important for correct diagnosis and treatment of diseases developed in stomatognatic system. Several investigator have studied the distribution of tooth contacts in maximum intercuspation and have repored contact locations with respect to the tooth position. However, there are few report the variation of the occlusal contact point with change in each head position. This study analysed the number of occlusal contact point with change in each head position. 30 subject(male 17, female 13), who ahad natural occlusion and no symptoms of temporomandibular disorder, were selected. The numbers and patterns of tooth contact were recorded by silicone bite registration on stone model at four different head positions with head anguration gauge(from the supine to the upright position). The results obtained were as follows : 1. The numbers of total occlusal contact point on teeth increased to average 25, 29, 35, 42 points as head angulation was changed from the supine to the upright position against the ala-tragus line, and there was significant difference(p<0.05). 2. In the 19 subject(65%)of total 30 subject, the perforated point of the silicone bite indicated that the locus for the prime contact point moved mesially as the head angulation was changed from the supine to the upright position. 3. On the basis of the fact that the anterior occlusal contact point increase as head angulation changed from the supine to the upright position, we could find that the mandibular position is moved anteriorly. 779