심한 치근 만곡을 동반한 매복은 흔하지 않으며, 특히 상악 전치의 경우에 그러하다. 이는 외과적 노출과 교정적 견인이 임상적으로 매우 어려우며, 치근유착, 치근의 외흡수, 교정적 견인 후 치근 노출 등의 위험이 있을 수 있기 때문이다. 비록 성공적으로 치료된 증례라 하더라도 치은의 심미를 향상시키기 위하여 치주수술이 필요한 경우가 많다. 본 증례보고는 발육중인 만곡된 치근을 가진 역위 매복된 상악 중절치의 closed eruption technique를 이용한 교정 치험예를 소개하였다.
심한 치근 만곡을 동반한 매복은 흔하지 않으며, 특히 상악 전치의 경우에 그러하다. 이는 외과적 노출과 교정적 견인이 임상적으로 매우 어려우며, 치근유착, 치근의 외흡수, 교정적 견인 후 치근 노출 등의 위험이 있을 수 있기 때문이다. 비록 성공적으로 치료된 증례라 하더라도 치은의 심미를 향상시키기 위하여 치주수술이 필요한 경우가 많다. 본 증례보고는 발육중인 만곡된 치근을 가진 역위 매복된 상악 중절치의 closed eruption technique를 이용한 교정 치험예를 소개하였다.
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, a...
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.
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.
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문제 정의
This study reports the treatment outcome of an invertedly impacted incisor with a developing dilacerated root. The result was clinically favorable.
제안 방법
Fig 4. Posttteatment intraoral photograph (A), periapical radiograph (B), cephalometric radiograph (C) and three-dimensional imaging (D) of the dilacerated maxillary right central incisor after treatment using removable appliance and sectional fixed appliance (17 months after starting traction).
대상 데이터
An eight year and eight month old Korean boy was brought by his parents to the Division of Orthodontics with the chief complaint of uneruption of the maxillary right central incisor. He was in good health and had no medical history, but had a traumatic iiijury on the maxillary right deciduous central incisor and overlying upper lip at six years of age.
The patient was in the early mixed dentition (Hellman's dental developmental stage Ⅲ A) with a flush terminal plane molar relationship and a normal overbite and oveijet. The eruptive pattern was symmetric, except for the maxillary central incisors.
This patient was diagnosed as uskeletal and dental Class I malocclusion characterized by an invertedly impacted maxillary right central incisor with developing dilacerated root.”
참고문헌 (16)
Becker A. Early treatment for impacted maxillary incisors. Am J Orthod Dentofacial Orthop 2002;121:586-7
Wasserstein A, Tzur B, Breniak N. Incomplete canine transposition and maxillary central incisor impaction--a case report. Am J Orthod Dentofacial Orthop 1997;111:635-9
Sandler PJ, Reed RT. Treatment of a dilacerated incisor. J Clin Orthod 1998;22:374-6
Ash MM Jr. Wheeler's dental anatomy, physiology, and occlusion. 6th edition. Philadelphia: WB Saunders Co;1984
McNamara T, Woolfe SN, McNamara CM. Orthodontic management of a dilacerated maxillary central incisor with an unusual sequela. J Clin Orthod 1998;32:293-7
Kajiyama K, Kai H. Esthetic management of an unerupted maxillary central incisor with a closed eruption technique. Am J Orthod Dentofacial Orthop 2000;118:224-8
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