한국인 아동의 유치열기의 특성 - 치아 치열궁의 관계 Spacing and crowding of the primary dentition in Korean children - relationship to tooth sizes and dental arch dimension원문보기
이 연구의 목적은 강화지역의 한국인 아동의 유치열기에서의 공극과 총생의 빈도를 조사하고, 치아 크기와 치열궁간의 관계를 조사하는 것이다. 102개의 취학전 아동(남자 57명, 여자 45명, $4{\sim}5$세)의 석고모형을 조사하여 치아의 크기, 견치간 폭경, 구치부 폭영, 치열궁 장경을 측정하였다. 유치열기의 공극 빈도는 남자에서 63.2%, 여자에서 57.8%로 나타났다. 공극의 빈도는 남자에서, 하악보다는 상악에서 더 높게 나타났다. 공극이 있는 경우보다 총생을 보이는 치열에서 치아 크기는 크고 치열궁 폭경은 더 작게 나타났다 (p<0.05). 전치부 공극의 존재 여부는 치아의 크기, 견치간 폭경과 관련이 있었다.
이 연구의 목적은 강화지역의 한국인 아동의 유치열기에서의 공극과 총생의 빈도를 조사하고, 치아 크기와 치열궁간의 관계를 조사하는 것이다. 102개의 취학전 아동(남자 57명, 여자 45명, $4{\sim}5$세)의 석고모형을 조사하여 치아의 크기, 견치간 폭경, 구치부 폭영, 치열궁 장경을 측정하였다. 유치열기의 공극 빈도는 남자에서 63.2%, 여자에서 57.8%로 나타났다. 공극의 빈도는 남자에서, 하악보다는 상악에서 더 높게 나타났다. 공극이 있는 경우보다 총생을 보이는 치열에서 치아 크기는 크고 치열궁 폭경은 더 작게 나타났다 (p<0.05). 전치부 공극의 존재 여부는 치아의 크기, 견치간 폭경과 관련이 있었다.
The aims of this study were to investigate the prevalence of spaced, closed, and crowded primary dentitions by sex and arch in Korean children from Kanghwa, and to determine the frequency of the primate and developmental spaces. The differences in the mesiodistal crown diameters and the arch dimensi...
The aims of this study were to investigate the prevalence of spaced, closed, and crowded primary dentitions by sex and arch in Korean children from Kanghwa, and to determine the frequency of the primate and developmental spaces. The differences in the mesiodistal crown diameters and the arch dimensions between the spaced, closed, and crowded primary dentitions were also evaluated. Dental casts of 102 preschool children (57 males and 45 females, aged $4{\sim}5$ years) were studied. The prevalence of spacing in the primary dentition was 63.2% In males and 57.8% in females. The frequency of spacing was greater in males than in females, and greater in the maxillary arch than in the mandibular arch. The crowns were significantly larger and the arches significantly narrower in closed and crowded dentitions than in those with spacing (p<0.05). The results showed that the prevalence of spacing was lower than that found in previous studies and the presence of spacing in the anterior region was related to the mesiodistal crown diameter and the intercanine width.
The aims of this study were to investigate the prevalence of spaced, closed, and crowded primary dentitions by sex and arch in Korean children from Kanghwa, and to determine the frequency of the primate and developmental spaces. The differences in the mesiodistal crown diameters and the arch dimensions between the spaced, closed, and crowded primary dentitions were also evaluated. Dental casts of 102 preschool children (57 males and 45 females, aged $4{\sim}5$ years) were studied. The prevalence of spacing in the primary dentition was 63.2% In males and 57.8% in females. The frequency of spacing was greater in males than in females, and greater in the maxillary arch than in the mandibular arch. The crowns were significantly larger and the arches significantly narrower in closed and crowded dentitions than in those with spacing (p<0.05). The results showed that the prevalence of spacing was lower than that found in previous studies and the presence of spacing in the anterior region was related to the mesiodistal crown diameter and the intercanine width.
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문제 정의
The aims of this study were to investigate the prevalence of spaced, closed, and crowded primary dentitions by sex and arch in Korean children from Kanghwa, and to determine the frequency of the primate and developmental spaces. The differences in the mesiodistal crown diameters and the arch dimensions between the spaced, closed, and crowded primary dentitions were also evaluated.
This study provides information on the prevalence of spacing and crowding in the primary dentitions of Korean children from Kanghwa. Although spaced dentitions were more frequent than closed or crowded dentitions, the prevalence of spacing was lower than that found in other studies.
제안 방법
Descriptive analysis was performed on the frequency of the spacing by arch and sex. A Student f-test was used to compare the mesiodistal crown diameters and the arch dimensions of the primary dentition between the spaced, closed, and crowded dentitions by arch and sex.
13 reported that the maxillary and mandibular intercanine and intermolar widths significantly increase between 3 and 5 years of age. Therefore, the subjects in this study were limited to those between 4 and 5 years of age in order to exclude the growth effect.
데이터처리
the spacing by arch and sex. A Student f-test was used to compare the mesiodistal crown diameters and the arch dimensions of the primary dentition between the spaced, closed, and crowded dentitions by arch and sex. Significance was predetermined at the 0.
성능/효과
Third, the adaptation of the human cranium to an upright position may have resulted in a change of the arch dimension and tooth size/jaw size discrepancy. As the human nasomaxillary complex has become rotated downward and backward into an upright rather than a horizontal position, dental arch length has been significantly reduced.
This study showed that in both sexes spacing in the primary dentition was more frequent in the maxilla than in the mandible (Tables 1-3). Even though primate and developmental spacings appear to be a common feature of the primary dentition in the Korean 사lildren from Kanghwa (63.
Boyko8 reported that 78% of the primary dentition had bilateral primate slices in both arches, 98% of boys had bilateral primate spaces in the maxilla and 86% had spaces in the mandible. Foster et al? reported that crowding is rare in the primary dentition, and that the size disproportion between the 1 mire cm시 tka taatlr /TiivrtWT 뉘、q rAr-imorez eeorrci 1101 mlKr presented as an absence of spacing and rar얀y as crowding. Kim et 아? reported that 80% of Korean children had primate spaces in the maxilla and 52% in the mandible.
후속연구
The crowns were significantly larger and the arches were significantly narrower in the subjects with no spacing. Further studies are needed to confirm whether or not the prevalence of a spaced dentition is decreasing and the arch dimensions are narrowing.
참고문헌 (22)
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