3媛쒖쓽 移섍렐�쓣 媛�吏� �븯�븙 �쑀援ъ튂 : 利앸�蹂닿퀬
Mandibular first molar and primary molars usually have two roots, on the mesial and distal sides. Occasionally, these molars have an extra root located in the distolingual aspect. Prevalence of the 3-rooted first permanent molar shows ethnic variation, ranging from about 3% in Caucasian to about 20%...
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ftyonseiuniv:oai:ir.ymlib.yonsei.ac.kr:22282913/107083 2023-05-15T16:06:53+02:00 3媛쒖쓽 移섍렐�쓣 媛�吏� �븯�븙 �쑀援ъ튂 : 利앸�蹂닿퀬 Mandibular primary molars with 3 roots : Case report Kim, Seong Oh Son, Heung Kyu Song, Je Seon Lee, Jae Ho Choi, Byung Jai Choi, Hyung Jun 2008 167~174 https://ir.ymlib.yonsei.ac.kr/handle/22282913/107083 unknown Journal of the Korean Academy of Pediatric Dentistry (���븳�냼�븘移섍낵�븰�쉶吏�) J01802 1226-8496 OAK-2008-00963 https://ir.ymlib.yonsei.ac.kr/handle/22282913/107083 T200800811 Journal of the Korean Academy of Pediatric Dentistry (���븳�냼�븘移섍낵�븰�쉶吏�), Vol.35(1) : 167-174, 2008 CC BY-NC-ND 2.0 KR https://creativecommons.org/licenses/by-nc-nd/2.0/kr/ free CC-BY-NC-ND T200800811.pdf Article 2008 ftyonseiuniv 2020-05-17T08:23:38Z Mandibular first molar and primary molars usually have two roots, on the mesial and distal sides. Occasionally, these molars have an extra root located in the distolingual aspect. Prevalence of the 3-rooted first permanent molar shows ethnic variation, ranging from about 3% in Caucasian to about 20% in Mongoloid group, which includes Chinese, Japanese, Eskimo, American and Canadian Indians. The frequency of the mandibular molar with three roots decreases in the order of the first permanent molar, the second primary molar, and the first primary molar. If the mandibular first or second primary molar has an additional distolingual root, the adjacent molars, including the first permanent molar, posterior to it also may have it. Coronal morphologic change can occur in the mandibular first primary molars with three roots: the crown had more triangular-shape compared to the one with two roots, possibly affected by the presence of additional distolingual root. Clinically, exact diagnosis and treatment should be taken with those teeth for pulp canal treatment, extraction, and SS Cr open Article in Journal/Newspaper eskimo* YUHSpace (Yonsei University Health System Repository) |
institution |
Open Polar |
collection |
YUHSpace (Yonsei University Health System Repository) |
op_collection_id |
ftyonseiuniv |
language |
unknown |
description |
Mandibular first molar and primary molars usually have two roots, on the mesial and distal sides. Occasionally, these molars have an extra root located in the distolingual aspect. Prevalence of the 3-rooted first permanent molar shows ethnic variation, ranging from about 3% in Caucasian to about 20% in Mongoloid group, which includes Chinese, Japanese, Eskimo, American and Canadian Indians. The frequency of the mandibular molar with three roots decreases in the order of the first permanent molar, the second primary molar, and the first primary molar. If the mandibular first or second primary molar has an additional distolingual root, the adjacent molars, including the first permanent molar, posterior to it also may have it. Coronal morphologic change can occur in the mandibular first primary molars with three roots: the crown had more triangular-shape compared to the one with two roots, possibly affected by the presence of additional distolingual root. Clinically, exact diagnosis and treatment should be taken with those teeth for pulp canal treatment, extraction, and SS Cr open |
author2 |
Kim, Seong Oh Son, Heung Kyu Song, Je Seon Lee, Jae Ho Choi, Byung Jai Choi, Hyung Jun |
format |
Article in Journal/Newspaper |
title |
3媛쒖쓽 移섍렐�쓣 媛�吏� �븯�븙 �쑀援ъ튂 : 利앸�蹂닿퀬 |
spellingShingle |
3媛쒖쓽 移섍렐�쓣 媛�吏� �븯�븙 �쑀援ъ튂 : 利앸�蹂닿퀬 |
title_short |
3媛쒖쓽 移섍렐�쓣 媛�吏� �븯�븙 �쑀援ъ튂 : 利앸�蹂닿퀬 |
title_full |
3媛쒖쓽 移섍렐�쓣 媛�吏� �븯�븙 �쑀援ъ튂 : 利앸�蹂닿퀬 |
title_fullStr |
3媛쒖쓽 移섍렐�쓣 媛�吏� �븯�븙 �쑀援ъ튂 : 利앸�蹂닿퀬 |
title_full_unstemmed |
3媛쒖쓽 移섍렐�쓣 媛�吏� �븯�븙 �쑀援ъ튂 : 利앸�蹂닿퀬 |
title_sort |
3媛쒖쓽 移섍렐�쓣 媛�吏� �븯�븙 �쑀援ъ튂 : 利앸�蹂닿퀬 |
publishDate |
2008 |
url |
https://ir.ymlib.yonsei.ac.kr/handle/22282913/107083 |
genre |
eskimo* |
genre_facet |
eskimo* |
op_source |
T200800811.pdf |
op_relation |
Journal of the Korean Academy of Pediatric Dentistry (���븳�냼�븘移섍낵�븰�쉶吏�) J01802 1226-8496 OAK-2008-00963 https://ir.ymlib.yonsei.ac.kr/handle/22282913/107083 T200800811 Journal of the Korean Academy of Pediatric Dentistry (���븳�냼�븘移섍낵�븰�쉶吏�), Vol.35(1) : 167-174, 2008 |
op_rights |
CC BY-NC-ND 2.0 KR https://creativecommons.org/licenses/by-nc-nd/2.0/kr/ free |
op_rightsnorm |
CC-BY-NC-ND |
_version_ |
1766402901054324736 |