• Title/Summary/Keyword: 조기 상실

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SPACE LOSS AFTER PREMATURE LOSS OF PRIMARY INCISOR (유절치 조기 상실 후 공간 상실)

  • Choi, Byung-Jai;Han, Yeon-Sun;Kim, Seong-Oh;Lee, Chong-Gap
    • Journal of the korean academy of Pediatric Dentistry
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    • v.29 no.3
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    • pp.407-412
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    • 2002
  • The primary cause of missing teeth vary depending on the region. The loss of posterior teeth is mainly due to dental caries, whereas that of the anterior teeth occur primarily due to trauma at the age of standing and walking and secondarily from the rampant dental caries. Particularly, reduction of the arch length in the cases of premature loss of primary teeth may compromise the eruption of succedaneous permanent teeth. This may result in crowding and impaction of the permanent teeth, and asymmetry of arch, thus a careful consideration for space maintenance should be made in such cases. Space maintainer is required in the case of premature loss of primary posterior teeth, because space loss result from the approximate and centrifugal movement of the neighboring teeth. Generally, in the case of primary incisor, space loss occurs when 1) tooth contact is relevant, 2) crowding in primary dentition is present, and 3) a primary incisor is lost before the eruption of primary canine. Contrarily, in the case of primary dentition with interdental space, space loss will not be observed, mostly when a primary incisor is lost after the eruption of primary canine. Thus, using a space maintainer in cases of premature loss of primary incisor has been introduced primarily not for the purpose of space maintaining but for an aesthetic purpose, prevention of parafunctional oral habits such as tongue thrust, and of pronunciation. Additionally, few case studies have been reported of space loss in cases of premature loss of primary incisor. This study is to report cases of the space loss following the premature loss of primary incisors observed in children.

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THE ESTHETIC RESTORATION BY OPEN-FACED STAINLESS STEEL CROWN IN PREMATURE LOSS OF MAXILLARY PRIMARY INCISORS (상악 유중절치 조기 상실시 개창 금속관을 이용한 심미적 수복)

  • Lee, Jung-Jin;Kim, Seong-Oh;Lee, Je-Ho;Choe, Hyeong-Jun;Son, Heung-Kyu;Choi, Byung-Jai
    • Journal of the korean academy of Pediatric Dentistry
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    • v.33 no.4
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    • pp.717-721
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    • 2006
  • Premature loss of maxillary primary incisors often results from early childhood caries (ECC), trauma. While space maintenance in the posterior region is an important consideration when there is early loss of primary molars, the anterior segment appears to be stable, even with the early loss of several incisors, once the primary canines erupt. However, collapse of anterior arch integrity is evident in cases where incisor teeth are in a crowded dentition prior to extraction or lost before the eruption of the primary canines. So, when early loss of maxillary primary incisors, the aim of restoration is esthetics, speech problem, oral habit such as tongue thrusting than space maintenance. This paper reports that the esthetic problem due to premature loss of maxillary incisors can be successfully resolved by soldered open-faced stainless steel crown.

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Clinical Implications of the Premature Loss of the Mandibular Primary Canine (하악 유견치 조기탈락은 무엇을 의미할까?)

  • Lee, Sang-Ho
    • Journal of the korean academy of Pediatric Dentistry
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    • v.42 no.1
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    • pp.87-101
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    • 2015
  • The premature loss of the mandibular primary canine is relatively frequent and a sign of the upcoming space problems in the transitional period. This situation is caused by the permanent lateral incisor resorbing the root of the primary canine during its eruption. Bilateral loss of primary canines in a crowded arch leads to the lingual tipping of the permanent incisors, with the consequent reduction in the arch perimeter and increase in overbite. When the loss of a primary canine is unilateral, tipping of the adjacent incisors occurs toward the space, resulting in midline deviation. In these situations, treatment possibilities, such as extraction of the antimeric tooth or placement of a passive lingual arch, can be applied; although there are some controversies concerning this. Most space problems with less than 4 mm can be resolved through preservation of the leeway space using sequential disking of the primary teeth and a passive lingual arch, regaining space or limited arch expansion in the late mixed dentition. In cases with 4~6 mm of space problems, arch expansion (A-P or transverse) can be applied. Space problems with more than 6 mm should be treated through diagnosis and treatment planning. Most of these cases will require extraction of permanent teeth including serial extraction (guidance of eruption).

ALVEOLAR BONE LOSS AFTER THE EARLY LOSS OF UPPER CENTRAL INCISOR IN GROWING CHILDREN (성장기 어린이에서 상악 중절치 조기 상실 후 치조골 소실)

  • Na, Hye-Jin;Song, Je-Seon;Lee, Jae-Ho;Choi, Hyung-Jun;Kim, Seong-Oh;Son, Heung-Kyu;Choi, Byung-Jai
    • Journal of the korean academy of Pediatric Dentistry
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    • v.39 no.1
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    • pp.51-57
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    • 2012
  • The anterior maxillary incisor is the most traumatized region in the mouth and trauma is frequent between the ages of 8-10. Traumatic loss of teeth, can lead to many complications in children. Thus, as possible to keep traumatic teeth, but if you need extractions There may be. Complications occur and early tooth loss is frequent. Complications of early loss of central incisors are esthetic compromise, loss of vertical and horizontal width, height, contour of alveolar bone, tilting of adjacent teeth, arch length loss. Alveolar bone loss may affect normal function and stability, and results in esthetic problem for future prosthesis restoration. The 9-year-old girl and 6-year-old boy got early loss of upper central incisor. The amount of alveolar bone resorption was measured using cone beam computed tomograph and cast analysis.

Management of Premature Loss of Primary Molars with Flexible Denture (탄성의치를 이용한 유구치 조기 상실의 치료)

  • Song, Kiun;Nam, Okhyung;Kim, Misun;Lee, Hyoseol;Choi, Sungchul
    • Journal of the korean academy of Pediatric Dentistry
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    • v.43 no.2
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    • pp.187-191
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    • 2016
  • Early loss of a primary second molar can cause mesial drift or tilting of the permanent first molar. We present a case of the early loss of the mandibular primary molars in a 5-year-old girl. The patient required extraction of the mandibular left primary first and second molars due to folliculitis on the successors. A flexible denture was used for eruption guidance of the permanent first molar and the recovery of masticatory function simultaneously.

REMOVABLE DENTURE FOR CHILD WITH LOSS OF VERTICAL DIMENSION USING T-SCAN : A CASE REPORT (T-Scan을 이용한 감소된 수직고경을 가진 소아의 가철성 의치 제작)

  • Chung, Yang-Seok;Lee, Chang-Seop;Lee, Sang-Ho;Lee, Nam-Young
    • Journal of the korean academy of Pediatric Dentistry
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    • v.33 no.1
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    • pp.103-108
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    • 2006
  • Loss of permanent molar by multiple dental caries traumatic influence or hereditable disease can cause loss of the vertical dimension in children. However traditionally reconstructive treatment to restore vertical dimension in children has been provided by using simple methods such as celluloid crown form and stainless steel crown. The presented case report describes an alternative treatment modality of vertical dimension by using removalbe appliance This appliance is made with average of facial height and maximal clenching force by using T-scan.

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Flapless implant surgery on atrophied alveolar ridge in a patient with growth disorder (성장 장애를 가진 부분 무치악 환자에서 위축된 골에 무피판 임플란트 수술 증례)

  • Lee, Du-Hyeong
    • Journal of Dental Rehabilitation and Applied Science
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    • v.30 no.2
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    • pp.170-175
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    • 2014
  • The growth disorder influences craniofacial development and early loss of permanent teeth. This case reports the importance of computerized tomography (CT) and surgical guide to identify horizontal bone loss, adjacent teeth and to guide drills when placing implants in a short stature patient. The patient has idiopathic short stature and the 3rd grade of intellectual disability. To recover posterior mandibular teeth, implant treatment was planned. CT images showed that the adjacent teeth were located markedly to the buccal side. A CT-based surgical guide was fabricated and implants was placed using flapless surgery. Bone dehiscence and fenestration may happen when the surgical guide was fabricated just based on adjacent clinical crowns. Thus, it is essential to analysis bone and teeth and to make surgical guide through CT, especially in atrophied bone on grow disorder patients. Furthermore, systematic researches are recommended to elucidate the relationship between growth disorder and tooth malposition.