compound odontoma

集合性歯牙腫

WordNet

1. create by mixing or combining
2. (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight (同)chemical_compound
3. put or add together; "combine resources" (同)combine
4. an enclosure of residences and other building (especially in the Orient)
5. a whole formed by a union of two or more elements or parts
6. combine so as to form a whole; mix; "compound the ingredients" (同)combine
7. calculate principal and interest
8. composed of more than one part; "compound leaves are composed of several lobes; "compound flower heads"
9. consisting of two or more substances or ingredients or elements or parts; "soap is a compound substance"; "housetop is a compound word"; "a blackberry is a compound fruit"
10. combined into or constituting a chemical compound

PrepTutorEJDIC

1. (…になるように)〈要素・成分など〉'を'混ぜ合わせる《+『名』+『into』+『名』》;(…から)〈薬など〉'を'調合する,混ぜ合わせて作る《+『名』+『from』(『of』)+『名』》 / 《しばしば受動態で》〈めんどうな事・損害など〉'を'もっとひどくする / 〈利子〉'を'複利で計算する / (…と)話し合いをつける,妥協する《+『with』+『名』》 / 複合の,合成の / 『合成物』,混合物,調合物;化合物 / 複合語,合成語(classroom, heart-to-heartなどをいう)
2. (異民族の家屋・商館などがある)囲み地区,構内

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/09/06 13:08:22」(JST)

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Odontoma
Classification and external resources
ICD-O	9280/0
DiseasesDB	34988
MeSH	D009810

An odontoma (also termed odontome) is a benign tumour of odontogenic origin (i.e. linked to tooth development). Specifically, it is a dental hamartoma, meaning that it is composed of normal dental tissue that has grown in an irregular way.

The average age of people found with an odontoma is 14. The condition is frequently associated with one or more unerupted teeth. Though most cases are found impacted within the jaw there are instances where odontomas have erupted into the oral cavity.

Classification

There are two main types: compound and complex.

• A compound odontoma still has the three separate dental tissues (enamel, dentin and cementum), but may present a lobulated appearance where there is no definitive demarcation of separate tissues between the individual "toothlets" (or denticles). It usually appears in the anterior maxilla.

• The complex type is unrecognizable as dental tissues, usually presenting as a radioopaque area with varying densities. It usually appears in the posterior maxilla or in the mandible.

In addition to the above forms, the dilated odontoma is an infrequent developmental alteration that appears in any area of the dental arches and can affect deciduous, permanent and supernumerary teeth. Dens invaginatus is a developmental anomaly resulting from invagination of a portion of crown forming within the enamel organ during odontogenesis. The most extreme form of dens invaginatus is known as dilated odontoma.

Epidemiology

Odontomas are thought to be the second most frequent type of odontogenic tumor worldwide (after ameloblastoma), accounting for about 20% of all cases within this relatively uncommon tumor category which shows large geographic variations in incidence.

Notable cases

In July 2014 in Mumbai, India, surgeons at Mumbai's JJ Hospital removed 232 tooth-like growths from a complex odontoma growing in the lower jaw of a 17-year-old boy. This is thought to be the largest ever number of such growths to be identified in a patient.

Another exceptional case of compound odontoma was reported in November 2014, involving the extraction of 202 teeth from a 7-year old girl in Gurgaon, India. "

References

UpToDate Contents

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• 1. 複合位の胎児のマネージメント management of the fetus with compound presentation
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English Journal

• An unusual foreign object mimicking an odontoma in a patient with cleft alveolus: a case report.

• Jayasuriya NSS1, Karunathilaka PRCL2, Wijekoon P3.
• Journal of medical case reports.J Med Case Rep.2017 Sep 26;11(1):279. doi: 10.1186/s13256-017-1433-x.
• PMID 28946895

• Immediate Dental Implant Placement After Removal of Complex Odontoma.

• de Souza Batista FR1, de Souza Batista VE, Vechiato-Filho AJ, Tieghi Neto V, Figueira JA, Verri FR.
• The Journal of craniofacial surgery.J Craniofac Surg.2017 Sep 15. doi: 10.1097/SCS.0000000000003885. [Epub ahead of print]
• PMID 28922246

• A case of concrescent tooth-A developmental anomaly in a 19th century skull from Uganda.

• Dąbrowski P1, Nowakowski D2, Gawlikowska-Sroka A3, Maciuszczak I4, Gronkiewicz S5.
• International journal of paleopathology.Int J Paleopathol.2017 Sep;18:21-25. doi: 10.1016/j.ijpp.2017.04.002. Epub 2017 May 10.
• PMID 28888388

Japanese Journal

• 同一口腔内に含歯性嚢胞と集合性歯牙腫を認めた1例 (第1報)

• 簑島 直美,横山 三菜,大森 弘子,齋藤 良幸,熊坂 純雄,木本 茂成
• 小児歯科学雑誌 51(2), 223, 2013-04-25
• NAID 10031169075

• 歯牙腫を伴う異時性多発性埋伏過剰歯の1例

• 永田 心,野村 城二,清水 香澄,西浦 美貴,森田 寛,田川 俊郎
• 日本口腔外科学会雑誌 58(4), 267-271, 2012
• … The lesions in the left mandibular second premolar region and the right maxillary second premolar region consisted of tooth-like hard tissue encapsulated in white elastic soft tissue, and a compound odontoma was diagnosed. …
• NAID 130004707901

• Podoplanin expression in odontomas: clinicopathological study and immunohistochemical analysis of 86 cases

• , , , , , , , , , ,
• Journal of Oral Science 53(1), 67-75, 2011
• … The majority of the odontomas (66.3%) were the compound type, and the remainder (33.7%) were the complex type. … The most common location for complex odontomas was the molar region of the mandibular bone, and that for compound odontomas was the maxillary incisor region. …
• NAID 130000659038

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★リンクテーブル★

リンク元	「集合性歯牙腫」
関連記事	「compound」「odonto」

「集合性歯牙腫」

　　[★]

英

compound odontoma

関

歯牙異常

「compound」

　　[★]

• 化合物、配合、複方の、配合する

関

combination、compositus、mixture

　 　 　 　 　 　 　 　 　 　 　

「odonto」

　　[★]

• comb form.

• 歯の、歯を持った

• ex.

• odontogenic 歯原生の