증령에 따른 치아 색조 변화에 관한 연구
A study on Changes in color of the teeth with age ing
김기석, 김경환, 장갑성, 김석훈,
소속 상세정보
김기석 ( Kim Ki-Suk ) - 조선대학교 치과대학
김경환 ( Kim Kyong-Hwan ) - 조선대학교 치과대학 예방치학교실
장갑성 ( Chang Kap-Sung ) - 조선대학교 치과대학 치주과학교실
김석훈 ( Kim Sog-Hoon ) - 조선대학교 치과대학
KMID : 0353319860100010077
Abstract
The authers had studied on changes in color of the teeth by meas uring the incisal, middle, cervical third of the tooth crown. Using the OFC-1001 OP colori meter and on the crrelation with age. We had the subjects, that were the 72 men and 72 woemen who had sound teeth relatively.
Tne teeth us:-d as research material were maxillary right central incisor, canine, and the 2nd bicuspid and th3y ware cleaned, polished and dried before measuring in order to obtain exact results.
The results of the tooth color and their correlation with age were as follows.
1. The Lvalu3s are decreasing as the age increases.
2. There is no relation between the a values and age.
3. The bvalues are increasing as the age increases.
4. Tiie multiple regression equations are as follows.
In the male ;
y= 81.688 + 8.317a₁ + 1.708b₁- 0.955L₂- 2. 28a₂ -1. 733b₂ - 0.884L₃ - 9.2la₃ -1.333b₃ + 1.643L₄+3.431 a₄+6.358a_(5)÷3.651b_(6) -0.254L_(7)+184a_(7)+1.207L_(8)-6.295a_(8)-1.92L_(9)
S. E = 6.0168
In the female ;
Y= 146.3- 0. 962L₁-1.04b₁ -2.169L₂+ 29.005a₂ - 0. 845b₂-35.728a₃+ 1.44lb₃ + 3. 211L₄ + 3.4-33a₄ + 1.565b₄+0. 873L_(5) -0. 487a_(5)+ 1.037b_(5) -2.428L_(6)-7.246a_(6)- 4,4036b_(6)+19.511a_(8)+0.925b_(8)+1.254L_(9)-17.3a_(9)+b_(9)
S.E=7.48851
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