• Title/Summary/Keyword: Dilacerated tooth

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Orthodontic treatment of an impacted maxillary central incisor with dilacerations (역위 매복된 상악 중절치의 교정적 견인 치험 예)

  • Chun, Youn-Sic;Lim, Won-Hee;Kim, Hye-Jin
    • The korean journal of orthodontics
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    • v.37 no.2
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    • pp.159-163
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    • 2007
  • Impaction with a severely dilacerated root is seldom reported, especially in the maxillary incisor. It is probably because of the high clinical difficulty associated with bringing the dilacerated tooth into proper position, and the high chance of failure due to ankylosis, external root resolution, and root exposure after orthodontic traction. Even the successful cases may need periodontal surgery to improve the unesthetic gingival shape. However, it has previously been reported that an impacted maxillary central incisor was successfully treated by proper crown exposure and orthodontic traction. This article presents a case of an invertedly impacted maxillary right central incisor with a developing dilacerated root, which was aligned into proper position after orthodontic traction composed of two stages of a closed eruption technique.

Spontaneous Eruption of a Dilacerated Mandibular Central Incisor after Trauma of a Primary Tooth : Two Case Reports (선생 유치의 외상 후 발생한 만곡된 하악 영구 중절치의 자발적 맹출 : 증례보고)

  • Jang, Eunyeong;Lee, Jaesik;Nam, Soonhyeun;Kim, Hyunjung
    • JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY
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    • v.48 no.1
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    • pp.115-121
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    • 2021
  • Dilacerations generally involve central incisors; most often maxillary incisors rather than their mandibular counterparts. The clinical features of dilaceration include non-eruption of the responsible tooth or prolonged retention of the deciduous predecessor tooth. In Case 1, the tooth showed a dilaceration at the boundary between the crown and the root, more laterally rather than labiolingually. In Case 2, the dilacerated tooth showed a crown dilaceration with a relatively normal orientation of the dental root. In both cases, no significant space losses for eruption were observed. Moreover, it seems that unlike the maxilla with the palate, the mandibular anterior teeth are limited to show severe displacement. From these cases, it is suggested that if a mandibular permanent incisor shows a crown dilaceration or lateral dilaceration at the boundary between the crown and the root, there is a relatively high probability of spontaneous eruption of the dilacerated tooth.

ORTHODONTIC TRACTION OF IMPACED CENTRAL INCISOR WITH DILACERATED ROOT (만곡된 치근을 가진 상악 중절치의 교정적 견인을 이용한 치험례)

  • Kim, Young-Jin;Park, Ho-Won;Lee, Ju-Hyun
    • JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY
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    • v.32 no.3
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    • pp.437-443
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    • 2005
  • Dilaceration is most common in maxillary central incisor. Impaction by dilacerated tooth cause orthodontic problem such as tilting of adjacent tooth, midline deviation. Dilaceration is caused by trauma, cyst, other origin and tooth shape, degree of root curvature, location in the alveolar bone, ability of spontaneous eruption should be considered whether treat or not. Labially and lingually dilacerated tooth is difficult to spontaneous eruption. Thus, Prosthetic treatment alternative with extraction, auto transplantation, orthodontic traction with surgical exposure is included within the treatment alternative. These cases are about impacted central incisor with dilacerated root. We use closed eruption technique and guide impacted tooth into normal position by orthodontic traction.

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Treatment of a Horizontally Impacted and Dilacerated Maxillary Central Incisor and an Impacted Canine

  • Kim, Seong-Hun;Chung, Kyu-Rhim;Hwang, Eui-Hwan;Nelson, Gerald
    • Journal of Korean Dental Science
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    • v.14 no.1
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    • pp.40-45
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    • 2021
  • During orthodontic treatment of impacted teeth, use of appropriate anchorage against the traction force is important. Tooth anchorage with multi-bracket appliances is commonly used but sometimes it causes unwanted movements of adjacent teeth. Skeletal anchorage devices are therefore considered to minimize such side effects. Still their survival rate and positioning are highly limited according to the bone density and the interradicular space. This case report presents a case of two impacted teeth, one of which is dilacerated and horizontally angulated. Using the microplate with short screws and a bendable neck, negative effects on adjacent teeth were minimized and impacted teeth were repositioned with good stability.

Orthodontic Treatment of Inverted Maxillary Central Incisor with Labially Dilacerated Root : Case Report (순측 만곡치근을 갖는 역위 상악 중절치의 교정적 치험례)

  • Kim, Byeong-Cheon;Mun, Cheol-Hyeon
    • The Journal of the Korean dental association
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    • v.42 no.2
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    • pp.150-157
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    • 2004
  • Inverted maxillary incisor is that maxillary incisor rotates counterclockwise direction. The cause of this 'Inverted incisor' is the injury of the deciduous predecessor transmitted to the developing permanent tooth germ or displacement of permanent tooth crown portion from unknown origin. Dilaceration, defined as a distorted root from, may result from mechanical injury during eruption period or ectopic development of tooth germ. This article presents a case of an inverted and dilacerated maxillary right central incisor. Through orthodontic traction, the dilacerated and inverted incisor was successfully moved into the proper position.

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TREATMENT OF AN IMPACTED DILACERATED INCISOR BY SURGICAL REPOITION (외과적 재위치술에 의한 매복된 만곡절치의 치험례)

  • Seo, Yun-Jin;Lee, Kwang-Hee;La, Ji-Young;An, So-Youn;Kim, Yun-Hee;Keum, Ki-Seok;Lee, Sang-Bong
    • JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY
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    • v.39 no.2
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    • pp.166-173
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    • 2012
  • Dilaceration is a developmental disturbance in shape of teeth. It refers to an angulation, or a sharp bend or curve, in the root or crown of a formed tooth. Dilacerations are estimated to occur in 3% of all permanent dentitions. However, the etiology of dilaceration is not yet fully understood. Traumatic injury to the deciduous predecessors and ectopic development of the tooth germ are the two commonly cited causes of this anomaly. The involved tooth is usually the maxillary central incisor and it also shows high prevalence of impaction. At first, We tried to do surgical exposure with orthodontic traction but to no avail. After then surgical repositioning of the dilacerated tooth was performed. Finally, Satisfactory results were obtained at the end of treatment, with improvement in dental esthetics and functional aspects.

TREATMENT OF IMPACTED MAXILLARY CENTRAL INCISORS USING ORTHODONTIC TRACTIONS (매복된 상악 중절치의 교정적 처치를 통한 치험례)

  • Kim, Nam-Hyuk;Kim, Seong-Oh;Song, Je-Seon;Son, Heung-Kyu;Choi, Byung-Jai;Lee, Jae-Ho;Choi, Hyung-Jun
    • JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY
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    • v.37 no.1
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    • pp.109-116
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    • 2010
  • Impaction is defined as a cessation of the eruption of a tooth caused by a clinically or radiographically detectable physical barrier in the eruption path or by an ectopic position of the tooth. The reasons for impaction of the maxillary central incisor are supernumerary tooth, odontoma, ectopic position of tooth germ, dilacerated tooth and so force. Impacted tooth cause space loss due to proximal movement of adjacent tooth, malocclusion, root resorption of adjacent tooth, cyst formation, so careful observation and early detection is important and exact treatment should be applied to prevent these results. The treatment options of impacted tooth include induction an eruption through extraction of deciduous tooth or surgical exposure, reposition of impacted tooth by surgical method or orthodontic treatment. Orthodontic traction is recommended when an eruption does not happen after removal of barrier or surgical exposure, when eruption path is too transpositioned to be corrected spontaneously so eruption does not expected. In these cases, traction of impacted maxillary central incisor was carried out using orthodontic method with closed eruption technique and it showed good clinical results so we report these cases.