The Roughness & Micro-hardness on the Deciduous Teeth according to Formula Milk or Human Milk
이미라, 이충재, 박지현,
소속 상세정보
이미라 ( Lee Mi-Ra ) - Seonam University Department of Dental Hygiene
이충재 ( Lee Chung-Jae ) - Shinheung College University Department of Dental Technology
박지현 ( Park Ji-Hyeon ) - Gangneung Yeongdong University Department of Dental Hygienist
KMID : 1157520110070040179
Abstract
Objective: The objective of this study is to compare the eroding phenomena on enamel, according to feeding types; human milk and formula milk were prepared to check pH in specific durations of time.
Methods: 4 groups of solution with control in saline, saliva, formula milk and human milk were prepared and put into 84 specimens from 21 extracted deciduous teeth, and subsequently, incubated at 37oC for several days. Micro-hardness and SEM observation were conducted on each sample and the results were compared.
Results: pH was measured as 6.66±0.01 in formula milk and 7.41±0.07 in human milk, 7.65±0.06 in saliva, respectively. It was revealed through the decrease of the passage of time in experimental groups, otherwise remaining at a similar level in the saliva group. Micro-hardness was the least in the sample of the formula milk group and next in the human milk group. It was revealed to be lower in micro-hardness, both in the human and formula milk group than in the control as in the saliva or water (p＜0.01). The surface roughness and the loss of the in-organic substance was revealed more in the formula milk group than in human milk by SEM observation.
Conclusion: It was recommended to use human milk feeding because of the more influence in demineralization in formula milk feeding than in human milk, and that oral hygiene care is needed after formula milk feeding as well as in human milk feeding.
키워드
formula milk; human milk; micro-hardness; SEM
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