• Title/Summary/Keyword: 상아질 이형성증

Search Result 7, Processing Time 0.212 seconds

Dentin Dysplasia Type I: a Case Report (상아질 이형성증 1형: 증례보고)

  • Ryu, Jung-A;Kim, Seung-Hey;Choi, Byung-Jai;Hwang, Chung-Ju;Lee, Jae-Ho
    • Journal of the korean academy of Pediatric Dentistry
    • /
    • v.34 no.4
    • /
    • pp.718-724
    • /
    • 2007
  • A case of dentinal dysplasia type I is presented. Dentin dysplasia type I is a rare dental anomaly that is characterized by disturbance in dentin formation. It appears to be normal clinically, but, radiographically, it is characterized by obliteration of all pulp chambers and short, blunted, and malformed roots. Histological analysis shows whorls of tubular dentin and atypical osteodentin. In this case, features of dentin dysplasia type I in mixed dentition is presented. The clinical, radiographic, and histopathological findings of this condition are described along with its management.

  • PDF

Familial Occurrence of Dentin Dysplasia Type I: Case Report (가족 내에 발생한 제 1형 상아질 이형성증: 증례보고)

  • Kim, Sohyun;Kim, Youngjin;Kim, Hyunjung;Nam, Soonhyeun
    • Journal of the korean academy of Pediatric Dentistry
    • /
    • v.41 no.1
    • /
    • pp.47-53
    • /
    • 2014
  • Dentin dysplasia is a rare hereditary disturbance characterized by a dental anomaly of the dentin layer. The etiology is unclear, and this rare hereditary disturbance affects approximately one person in every 100,000. Dentin dysplasia is classified into two types, radicular dentin dysplasia as type I and coronal dentin dysplasia as type II. The characteristic clinical findings of dentin dysplasia type I are normal appearance of the crown and hypermobility of teeth. The radiographic findings are obliteration of all pulp canals, short, blunted and malformed or absent roots. Dentin dysplasia type II as coronal dentin dysplasia shows similar clinical features with dentinogensis imperfecta. This report shows a case of dentin dysplasia type I affecting one family except the father. The clinical, radiographic and histopathologic findings of this family are presented. Dentin dysplasia type I is difficult to diagnose unless dentist performs radiographic examination. If the affecting patient does not get regular dental care, dental abscesses or cysts may form spontaneously without caries. In this regard, early diagnosis is important to prevent premature loss of dentition.

TREATMENT OF SHELL TEETH IN CHILD : A CASE REPORT (소아에서의 shell teeth의 치험례)

  • Park, In-Ho;Yoon, Jung-Hoon;Lee, Chang-Seop;Lee, Sang-Ho;Lee, Nan-Young
    • Journal of the korean academy of Pediatric Dentistry
    • /
    • v.32 no.1
    • /
    • pp.49-54
    • /
    • 2005
  • Shell teeth, a rare dysplastic condition of dentin, was first described by Rushton in 1954. It is characterized by normal enamel, extremely thin dentin, correspondingly large pulp chambers, and shortened roots. This case report is of a male 3 years old. He is refered to the Chosun University dental hospital Pediatric Dentistry because of dental caries and dentin hypoplasia. Intra-oral examination showed attrition of all primary teeth. Radiographic examination showed that the pulps were extremely large with only a shell of surrounding hard tissue. The permanent premolars were missed congenitally. The diagnosis was shell teeth. Because of behavior problem, all dental treatment was undertaken with general anaesthesia. Extration, endodontic treatment and SS crown were performed. The patient has now been wearing the space maintainer and manages it well. The patient is seen intervals for supervision and follow-up care.

  • PDF

A Clinical and Radiological Study of Regional Odontodysplasia: Five-year Follow-up (국소적 치아이형성증의 임상적 방사선학적 연구 : 5년 추적관찰)

  • Song, Jihyun
    • Journal of the korean academy of Pediatric Dentistry
    • /
    • v.41 no.4
    • /
    • pp.322-327
    • /
    • 2014
  • Regional odontodysplasia (RO) is a rare and nonhereditary dental malformation. It is a dental alteration of unknown etiology, involving both mesodermal and ectodermal dental components, which is characterized by clinical, radiographic, and histologic features. The maxilla is more often involved than the mandible (especially the left side), and there is no racial predilection, but females are affected twice as often as males. The affected teeth are clinically hypoplastic and hypocalcified, presenting a "ghost-like" appearance radiographically. The present case features a male patient aged 4 years and 6 months who was diagnosed with regional odontodysplasia in the maxilla on the right side, confirmed by clinical and radiographic examination, with a follow up of 5 years. Since teeth affected by RO have a poor prognosis due to the fragile tooth surface and open apices, the long-term treatment strategy depends on periodic clinical and radiological observations.

RADICULAR DENTIN DYSPLASIA ASSOCIATED WITH ENAMEL HYPOPLASIA -Review of Literature & Report of a Case - (법랑질저형성증과 함께 나타난 치근부 상아질이형성증 -문헌고찰 및 증례보고-)

  • Kim Eun-Kyung
    • Journal of Korean Academy of Oral and Maxillofacial Radiology
    • /
    • v.19 no.1
    • /
    • pp.31-37
    • /
    • 1989
  • The author observed a rare case of radicular dentin dysplasia associated with enamel hypoplasia in a 11-year-old boy with a complaint of gum boil formation. 1. Clinically. yellowish-brown colored teeth with severe attrition and several gum boils were observed. 2. Radiographically, obliteration of pulp chamber and root canal, multiple periapical radiolucencies without obvious cause and blunt roots were observed. 3. Systemically, scalp hair and eyebrows were loose and short. And saddle nose could be also seen.

  • PDF

REGIONAL ODONTODYSPLASIA : CASE REPORT (국소적 치아이형성증 환아에 관한 증례)

  • Kim, Ji-Hee;Choi, Byung-Jai;Lee, Jae-Ho;Son, Heung-Kyu;Kim, Seong-Oh;Choi, Hyung-Jun
    • Journal of the korean academy of Pediatric Dentistry
    • /
    • v.36 no.1
    • /
    • pp.96-101
    • /
    • 2009
  • Regional odontodysplasia(ROD) is relatively rare localized developmental anomaly of tooth formation in which hard tissue is affected. The maxilla is typically affected than the mandible, and especially the maxillary left quadrant is the most commonly involved. Females are affected twice as often as males, and there is no association with race. Its etiology remains undetermined, but local circulatory disorders, somatic mutations, virus infections, local trauma, hyperpyrexia, irradiation, metabolic disturbances, and hereditary transmission are considered as possible etiologic factors. The affected teeth are likely to be small, hypoplastic, brown, and grooved. Eruption failure or delay is frequently seen as well as abscess or fistulae formation in absence of caries. Radiographically, there is a lack of contrast between the enamel and dentin, both of which are less radiopaque than unaffected counterparts. Moreover, enamel and dentin layers are thin, giving the teeth a “ghost-like appearance”. The pulp chambers and canals are large, the roots seem like to be short and indistinct. A 2-year-3-month old boy came to the department of pediatric dentistry, Yonsei University, with the chief complaint of delayed eruption and abnormal tooth shape on the lower left quadrant. He was diagnosed as regional odontodysplasia based on the clinical and radiographic findings.

  • PDF

Orthodontic treatment of an ankylosed tooth; application of single tooth osteotomy and alveolar bone distraction osteogenesis (유착치의 교정치료; 골절단술과 치조골 신장술의 적용)

  • Kim, Yong-Il;Kim, Seong-Sik;Son, Woo-Sung;Park, Soo-Byung
    • The korean journal of orthodontics
    • /
    • v.39 no.3
    • /
    • pp.185-198
    • /
    • 2009
  • Tooth anklylosis is defined as the adhesion state of alveolar bone to dentin or cementum. Trauma, disturbed metabolic disease, and congenital disease have been given as etiologic factors. Complications of tooth ankylosis are tipping of the neighboring teeth, space loss, and supraeruption of the opposing teeth. Particularly if dental ankylosis occurs in maxillary incisors of a growing child, the ankylosed tooth can not move vertically with subsequent disturbance in vertical growth of the alveolar process. With an appropriate treatment approach, an esthetic condition must be achieved especially in the maxillary anterior region. In this report, two cases are presented which were treated by the surgical repositioning method. One is treated by alveolar bone distraction osteogenesis which used a tooth-borne type distraction device and the other by single tooth osteotomy.