• Title/Summary/Keyword: 치아 매복

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ORTHODONTIC TRACTION OF HORIZONTALLY IMPACTED MAXILLARY INCISORS: CASE REPORTS (수평 매복된 상악 중절치의 교정적 견인: 증례 보고)

  • Kim, Mi-Ni;Kim, Young-Jae;Kim, Jung-Wook;Jang, Ki-Taek;Kim, Chong-Chul;Hahn, Se-Hyun;Lee, Sang-Hun
    • Journal of the korean academy of Pediatric Dentistry
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    • v.35 no.4
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    • pp.757-765
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    • 2008
  • Maxillary central incisor impactions occur infrequently. Their origins include various local causes, such as odontoma, supernumerary teeth, space loss, and disturbances in the eruption path, also trauma and apical follicular cysts. Impacted teeth can cause serious dental and aesthetic difficulties as well as psychological problems especially in anterior regions. Although the impaction of maxillary incisor occurs less frequently than that of the maxillary canine, it is of concern to parents during the early mixed dentition stage because of the uneruption of the tooth. Forced eruption of impacted teeth should be considered in young patients because this technique can lead to suitable results from a periodontal, occlusal, and esthetic perspective at an earlier stage better than with other treatment options. This report presents the surgical and orthodontic treatment of cases with horizontally impacted and dilacerated maxillary central incisors. For each patient, we used the closed eruption method, placed an attachment on the impacted tooth on surgery, and fully closed the flap. Traction was applied immediately. The impacted tooth erupts through the healed tissue in a manner resembling normal eruption.

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Eruption Guidance of Horizontally Impacted Permanent First Molar with Primary Retention of Primary Second Molars: Case Reports (제2유구치의 일차성 만기잔존이 동반된 제1대구치 수평매복의 맹출유도 : 증례보고)

  • Yoon, Garam;Lee, Nanyoung;Lee, Sangho;Jih, Myeongkwan
    • Journal of the korean academy of Pediatric Dentistry
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    • v.47 no.2
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    • pp.219-227
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    • 2020
  • Tooth eruption involves a complex developmental process of tooth migration from the dental follicular origin to the final occlusion position in the oral cavity via the alveolar process. Disturbance of tooth eruption can occur at any point in a series of eruption stages; however, horizontal impaction of the mandibular first molar and primary retention of the primary mandibular second molar are rarely observed simultaneously. This study describes the treatment for two cases of horizontally impacted first molar with primary retention of primary molar. The primary retention of the primary mandibular second molar was extracted, and orthodontic traction was applied to the horizontally impacted primary mandibular first molar. Subsequently, displacement of the premolar tooth bud was improved and space regaining for eruption was achieved, guiding to normal eruption of the first molar.

GUIDANCE OF ROOT FORMATION BY FORCED ERUPTION FOR INVERTED MAXILLARY CENTRAL INCISOR (역위 매복된 상악 중절치의 교정적 처치를 통한 치근 형성유도)

  • Jang, Eun-Young;Lim, Kwang-Ho;Lee, Chang-Seop;Lee, Sang-Ho
    • Journal of the korean academy of Pediatric Dentistry
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    • v.26 no.4
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    • pp.644-651
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    • 1999
  • It is a relatively common clinical experience to see an unerupted maxillary central incisor. This phenomenon is apparent at the dental age of almost eight years and over. Among the possible cause for failure of eruption, ectopic development of the tooth germ is mentioned. This is not fully understood but trauma or periapical imflammation of primary predecessors is accepted. The case with no history of trauma may be impacted by the periapical imflammation of primary predecessors. For bringing into the tooth eruption and the continued normal root developement by the Hertwig's epithelial root sheath, there are early considered of surgical invention and orthodontic traction with removable appliance. We reported successful treatment for inverted maxillary central incisor with proper eruption and normal root developement by forced eruption using removable appliance. But further observation will be required to evaluate the final root developement state and amount of keratinized attachment gingiva.

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ORTHODONTIC TREATMENT OF THE DISPLACED UNERUPTED MAXILLARY CANINE : CASE REPORT (변위된 미맹출 상악 견치의 교정 치험례)

  • Lim, Hye-Jeong;Choi, Nam-Ki;Kim, Seon-Mi;Yang, Kyu-Ho
    • Journal of the korean academy of Pediatric Dentistry
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    • v.32 no.3
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    • pp.543-549
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    • 2005
  • The maxillary canine is especially important as it has the longest root, provides guidance for lateral movement of the mandible and masticatory function and is a key in esthetics due to its position. Maxillary canine has the longest time to develop and a complex route from the place of formation to the site of eruption, and so it is prone to impaction more than other teeth. The clinician should consider the various treatment options : (a) No treatment and observation, (b) surgical exposure and orthodontic traction (c) autotransplantation (d) extraction. Surgical exposure of the canine and orthodontic treatment to bring the tooth into the line of occlusion is considered the most desirable approach. This case presents the results of treatment for impacted maxillary canine by surgical exposure and orthodontic tooth movement.

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SPONTANEOUS ERUPTION GUIDANCE OF UNERUPTED TOOTH AFTER SURGICAL REMOVAL OF COMPLEX ODONTOMA (복잡 치아종의 외과적 적출후 미맹출치의 자발적 맹출 유도)

  • Park, Sung-Youn;Nam, Dong-Woo;Kim, Hyun-Jung;Kim, Young-Jin;Nam, Soon-Hyeun
    • Journal of the korean academy of Pediatric Dentistry
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    • v.30 no.3
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    • pp.489-494
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    • 2003
  • Odontomas are the common type of odontogenic tumors and generally they are asymptomatic, depending upon size, location and their limited growth potential. they are rarely diagnosed before the second decade of life, and the frequently lead to impaction or delayed eruption of permanent teeth. Odontomas are classified of compound as compound or complex by morphology. Complex odontomas are unorganized masses of odontogenic tissues, morphologically not resembling the teeth, account for approximately 25 percent of all odontomas, 22 percent of odontogenic tumor of the jaws, and have a predilection for the posterior mandible in males. The etiology of odontomas is unknown, although local trauma, infection, and genetic factors have been suggested. Usually, treatment of odontoma is conservative sugical removal and their is little probability of recurrence. This paper describes two cases of complex odontomas diagnosed in children due to impaction of maxillary first molar in all cases, the surgical excision of the lesions was performed. Follow-up after 2 years, showed spontaneous eruption of the first permanent molar to the occlusal plane.

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DIFFERENT IAL APPROACHES IN THE MALOCCLUSION WITH CANINE IMPACTION (견치 매복을 동반한 부정교합자의 다각적 교정치료)

  • Choi, Eun-Ah;Suhr, Cheong-Hoon
    • The korean journal of orthodontics
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    • v.28 no.4 s.69
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    • pp.669-679
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    • 1998
  • During diagnostic process of the orthodontic patients, it is not unusual to find canine impaction. Generally, the chief complaint of the patients is crowding or antetior crossbite which is not related with canine impaction, but sometimes they complainted delayed eruption of the canine or deviation of the adjacent teeth caused by canine impaction. Orthodondists have to make the proper treatment plan according to final treatment goals. On the following cases, two patients were diagnosed as a malocclusion with canine impaction, and were treated by different accesses, one by extraction, and the other by non-extraction each.

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ERUPTING GUIDANCE OF IMPACTED MAXILLARY PERMANENT INCISOR WITH APICALLY REPOSITIONED FLAP (근단 변위 판막술을 이용한 상악 영구 절치의 맹출 유도)

  • Im, Ye-Jin;Kim, Young-Jin;Kim, Hyun-Jung;Nam, Soon-Hyun
    • Journal of the korean academy of Pediatric Dentistry
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    • v.37 no.4
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    • pp.512-518
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    • 2010
  • The impaction of the maxillary permanent incisor is a common clinical problem and is mostly found at the "labial to the alveolar process." Surgical exposure and orthodontic treatment with fixed orthodontic appliances can be considered if normal eruption of the labillay impacted tooth is not expected. Surgical exposure of the impacted tooth, that is usually under the attached gingiva or is surrounded by alveolar bone through gingivectomy and removal of alveolar bone, may give a rise to complications such as diminution in the width of the attached gingiva, inflammation of the gingiva, and the loss of marginal alveolar bone. Therefore, closed eruption technique, which includes surgical exposure and orthodontic treatment with fixed orthodontic appliances followed by repositioning of surgical flap, is preferred. However, apically repositioned flap of the impacted tooth, which is beneath the movable submucosal area or is above the alveolar crestal area, can prevent unwanted exposures and facilitate successful tooth eruption. In this report, we described esthetic results of three patients with unerupted maxillary permanent incisor who were performed with an apically positioned flap without the loss of attached gingiva.

ARREST OF ROOT DEVELOPMENT AFTER SURGICAL REPOSITIONING OF THE INVERTED MAXILLARY CENTRAL INCISOR : CASE REPORT (역위 매복된 상악 중절치의 외과적 재위치 후 치근 발육 정지)

  • Song, Je-Seon;Choi, Byung-Jai;Choi, Huung-Jun;Kim, Seong-Oh;Son, Heung-Gyu;Lee, Jae-Ho
    • Journal of the korean academy of Pediatric Dentistry
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    • v.34 no.1
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    • pp.162-168
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    • 2007
  • Impaction of the maxillary central incisor may cause social, esthetic, and functional problems in children. There are various means of treatment for the inverted maxillary central incisor, such as extraction, surgical opening followed by orthodontic traction surgical repositioning or intra-alveolar autotransplantation prior to extraction. In this case, we surgically repositioned the inverted maxillary central incisor to normal semi-erupted position in a 5-year-old boy The developmental stage of the inverted tooth was Nolla's 6.5, which indicates formation of less than one third of the root. After surgical reposition, we did follow-up for 21 months, expecting spontaneous growth Unfortunately, poor prognosis was noted further root was not observed. Such failure seems to originate from possible injury on Hertwig's epithelial root sheath by surgical trauma. We performed surgical repositioning to retain the tooth instead of extraction. However, arrest of root development occurred which is one of the critical complications. In order to increase the success rate of the surgical reposition procedure, minimal surgical trauma is required as well as selection of adequate indication and decision of proper time of treatment considering the stage of root development.

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