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22대 대한민국 국회 국회정보길라잡이 국회의원검색
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This study evaluated the 3-dimensional position and angulation of the maxillary second premolar germ according to the type of ectopic eruption of the maxillary first molar using cone beam computed tomography. A total of 105 patients were classified into three groups: Normal (fully erupted first molar without root resorption of the second primary molar), Reversible (ectopic eruption with root resorption that self-corrected), and Irreversible (impacted molar with persistent root resorption).

Angulation was measured in the sagittal and coronal planes. Distance and arch ratio were assessed in the axial and coronal views. In the sagittal plane, the mean angulation became progressively more distal from the Normal to the Irreversible group, showing significant differences between the Normal and both ectopic groups (p < 0.0001). In the coronal plane, buccal inclination increased toward the Irreversible group, with significant differences between the Normal and Irreversible groups (p < 0.0001). The coronal distance ratio decreased significantly across all groups, with pairwise differences showing statistical significance (p < 0.0001). In the axial plane, values were significantly lower in both ectopic groups than in the Normal group (p < 0.0001). No significant differences were observed in the arch ratio (p > 0.05). These findings suggest that ectopic eruption of the first molar induces progressive distal and buccal inclination and palatal displacement of the second premolar germ, even after self-correction.

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Shared decision-making in pediatric dentistry : implementation and challenges Soyeon Bak p. 1-10
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Dental care utilization, treatment patterns, and costs among pediatric patients with rare diseases : a multicenter retrospective study Jungmin Eum, Soyoung Park, Jihyun Song, Hong-Keun Hyun, Chung-Min Kang, Jaesik Lee, Yeonmi Yang, Juhyun Lee, Soomin Lim, Nanyoung Lee, Hyo-Seol Lee, Jonghyun Shin p. 24-37
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Pediatric traumatic dental injuries : a 10-year retrospective analysis of distribution, management, and outcomes Ju Hong Yong, Hyuntae Kim, Ji-Soo Song, Teo Jeon Shin, Hong-Keun Hyun, Jung-Wook Kim, Ki-Taeg Jang, Young-Jae Kim p. 53-69
Association of body mass index with dental maturation in children aged 7 ‒ 13 Gyuhee Hyeon, Yugyeong Kim, Bumhee Park, Yon-joo Mah p. 70-83
Three-dimensional analysis of the maxillary second premolar in relation to ectopic eruption types of the maxillary first molar using cone-beam computed tomography Suji Lee, Jaesik Lee p. 84-96
Impact of reimbursement expansion on clinical environment and caregiver satisfaction in dental care for pediatric and adolescent patients with disabilities : a pilot study at Yonsei University Dental Hospital So Dam Lee, Ko Eun Lee, Ji Eun Chung, Seong Joon Lee, Chung-Min Kang, Je Seon Song, Hyung-Jun Choi, Jae Ho Lee p. 97-113
Survival analysis of stainless steel crowns in children with early childhood caries treated under general anesthesia Hyejin Jung, Yeonmi Yang, Jaegon Kim, Daewoo Lee p. 114-124
Correction of maxillary canine-first premolar transposition using two distinct treatment approaches : case reports Ju Hong Yong, Hyuntae Kim, Ji-Soo Song, Teo Jeon Shin, Hong-Keun Hyun, Jung-Wook Kim, Ki-Taeg Jang, Young-Jae Kim p. 125-138

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