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Odontoma |
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Classification and external resources |
ICD-O |
9280/0 |
DiseasesDB |
34988 |
MeSH |
D009810 |
[edit on Wikidata]
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An odontoma (also termed odontome)[1][2] is a benign tumour[3] of odontogenic origin (i.e. linked to tooth development).[4] 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.[5] 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.[6]
Classification
There are two main types: compound and complex.[7]
- 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.[8]
References
- ^ Ireland R (25 March 2010). A Dictionary of Dentistry. Oxford University Press. p. 247. ISBN 978-0-19-953301-5.
- ^ Fletcher CDM (2 April 2013). Diagnostic Histopathology of Tumors: Expert Consult - Online. Elsevier Health Sciences. p. 791. ISBN 1-4557-3754-2.
- ^ Junquera L, de Vicente JC, Roig P, Olay S, Rodríguez-Recio O (2005). "Intraosseous odontoma erupted into the oral cavity: an unusual pathology" (PDF). Med Oral Patol Oral Cir Bucal. 10 (3): 248–51. PMID 15876969.
- ^ Odontoma. Dorland's Illustrated Medical Dictionary. Elsevier Health Sciences. 2011. p. 1313. ISBN 1-4160-6257-2.
- ^ "Odontogenic tumors". Retrieved 2009-01-04.
- ^ Bhargavan Sarojini S, Khosla E, Varghese T, Johnson Arakkal L (2014). "Eruption of odontomas into the oral cavity: a report of 2 cases". Case Rep Dent. 2014: 4 pages. doi:10.1155/2014/639173. PMC 4037568 . PMID 24900927.
- ^ Amado Cuesta S, Gargallo Albiol J, Berini Aytés L, Gay Escoda C (2003). "Review of 61 cases of odontoma. Presentation of an erupted complex odontoma" (PDF). Med Oral. 8 (5): 366–73. PMID 14595262.
- ^ Avelar RL, Primo BT, Pinheiro-Nogueira CB, Studart-Soares EC, de Oliveira RB, Romulo de Medeiros J, Hernandez PA (November 2011). "Worldwide incidence of odontogenic tumors". The Journal of Craniofacial Surgery. 22 (6): 2118–23. doi:10.1097/SCS.0b013e3182323cc7. PMID 22067866.
Dental tumors (ICD-O 9270-9349)
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Cementoblast |
- Cementoblastoma
- Cementoma
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Ameloblast |
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Mixed/hamartoma |
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Other |
- Adenomatoid odontogenic tumor
- Keratocystic odontogenic tumour
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English Journal
- Multiple complex odontoma of the maxilla and the mandible.
- Sun L1, Sun Z2, Ma X3.
- Oral surgery, oral medicine, oral pathology and oral radiology.Oral Surg Oral Med Oral Pathol Oral Radiol.2015 Jul;120(1):e11-6. doi: 10.1016/j.oooo.2015.02.488. Epub 2015 Apr 4.
- OBJECTIVE: The aim of this study was to present a literature review and case report of multiple odontoma.METHODS: A case of multiple odontoma is presented with a review of the English-language literature. The clinical and radiologic features are summarized.RESULTS: In total, 12 cases of multiple odo
- PMID 25921711
- Ameloblastic fibro-odontoma.
- Gantala R1, Gotoor SG1, Kumar RV2, Munisekhar MS3.
- BMJ case reports.BMJ Case Rep.2015 Jun 4;2015. pii: bcr2015209739. doi: 10.1136/bcr-2015-209739.
- Ameloblastic fibro-odontoma is a slow growing, benign, expansile epithelial odontogenic tumour with odontogenic mesenchyme, accounting for 0.3-1.7% of jaw tumours, signifying its rarity. The WHO defines it as "a neoplasm composed of proliferating odontogenic epithelium in a cellular ectomesenchymal
- PMID 26045519
- Defects of the Carney complex gene (PRKAR1A) in odontogenic tumors.
- Sousa SF1, Gomez RS1, Diniz MG1, Bernardes VF1, Soares FF1, Brito JA1, Liu S1, Pontes HA1, Stratakis CA1, Gomes CC2.
- Endocrine-related cancer.Endocr Relat Cancer.2015 Jun;22(3):399-408. doi: 10.1530/ERC-15-0094. Epub 2015 Apr 13.
- The surgical treatment of some odontogenic tumors often leads to tooth and maxillary bone loss as well as to facial deformity. Therefore, the identification of genes involved in the pathogenesis of odontogenic tumors may result in alternative molecular therapies. The PRKAR1A gene displays a loss of
- PMID 25870248
Japanese Journal
- 丸尾 尚伸,栗田 賢一,渡邉 裕之 [他]
- 日本口腔外科学会雑誌 = Japanese journal of oral and maxillofacial surgery 61(6), 330-334, 2015-06
- NAID 40020518327
- 上顎右側臼歯部に発生したエナメル上皮線維歯牙腫の1例
- 高木 愼,田村 博宣,矢部 孝
- 小児歯科学雑誌 52(1), 77-82, 2014
- エナメル上皮線維歯牙腫は歯原性上皮と歯原性間葉組織からなる軟組織中にエナメル質や象牙質等の硬組織形成をみる比較的まれな良性歯原性腫瘍である。今回われわれは上顎右側大臼歯部に発生した本腫瘍の1 例を経験したので報告する。症例は9 歳男児,初診:2011 年7 月,既往歴に特記事項なく,現病歴は近医でのパノラマエックス線写真で上顎右側臼歯部に拇指頭大で内部が不均一なエックス線不透過像を含む境界明瞭な嚢 …
- NAID 130005073783
Related Links
- odontoma /odon·to·ma/ (o″don-to´mah) any odontogenic tumor, especially a composite odontoma. composite odontoma one consisting of both enamel and dentin in an abnormal pattern. radicular odontoma one associated with a ...
- compound odontoma n. An odontoma in which the odontogenic tissues are organized and bear a superficial resemblence to teeth. odontoma a non-neoplastic malformation, a hamartoma, consisting of a mixture of enamel, dentine and ...
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