下顎 第一乳臼齒 早期喪失이 下顎 第一小臼齒 萌出에 미치는 影響
THE INFLUENCE ON THE ERUPTION OF MANDIBULAR 1st PREMOLARS AFTER PREMATURE LOSS OF MANDIBULAR 1st DECIDUOUS MOLARS
소속 상세정보
차문호(車文豪)/Bong-Ik Cha
차봉익(車鳳翼)/Moon-Ho Cha
KMID : 0358919840110010091
Abstract
結論
下顎 乳臼齒의 病巢(lesion)와 早期喪失(premature loss)이 繼承齒 萌出에 미치는 影響을
硏究하기 爲하여 3歲에서 9歲까지의 어린이 580名의 orthopantomogram 中에서 下顎 第一
乳臼齒 左右側이 正常인 兒童 290名을 正常群, 片側 病巢를 갖고 있는 兒童 113名을 比較Ⅰ
群, 8歲以前에 片側 拔齒한 兒童 55名을 比較 Ⅱ群으로하여 左右側 繼承齒사이의 萌出差異
와 相對的 位置를 觀察하여 다음과 같은 結論을 얻었다.
1. 比較群에서 下顎 第一乳臼齒 左右側의 萌出差異는 正常群보다 더 크게 나타났다.
2. 病巢가 있는 部位 繼承齒는 正常部位 繼承齒보다 萌出이 促進된 境遇가 40.9%, 遲延된
境遇가 22.7%였다.
3. 早期喪失 部位 繼承齒는 正常部泣 繼承齒보다 萌出이 促進된 境遇가 61.7%, 遲延된 境
遇가 4.3%였다.
#초록#
The purpose of this study is to determine what influence the lesion and the premature
loss of mandibular 1st deciduous molar have on the eruption of its successor, and the
author deviled 580 cases of orthopantomograms from age 3 to 9 years old children into
3 groups:
Control Group: both side normal
Study I Group: one normal and the other lesion.
Study Ⅱ Group: one normal and the other premature loss before 8 years old.
and observed the amount of differences and the relative position in eruption between
study-tooth successor and normal-tooth successor.
The following results were obtained:
1. The differences in eruption between right and left mandibular 1st primary molars of
Study Group were greater than those of Control Group.
2. The successors of lessoned -teeth showed more accelerated eruption than the
antimeres in 40.9% and more delayed, in 22.7%.
3. The successors of premature lost-teeth showed more accelerated eruption than the
antimeres in 61.7% and more delayed, in 4.3%.
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