| 词条 | Supernumerary root |
| 释义 |
| name = Supernumerary root | synonyms = | image = | caption = | pronounce = | field = Dentistry | symptoms = | complications = | onset = | duration = | types = | causes = | risks = | diagnosis = | differential = | prevention = | treatment = | medication = | prognosis = | frequency = | deaths = }}Supernumerary roots is a condition found in teeth there may be a larger number of roots than expected. The most common teeth affected are mandibular (lower) canines, premolars, and molars, especially third molars. Canines and most premolars, except for maxillary (upper) first premolars, usually have one root. Maxillary first premolars and mandibular molars usually have two roots. Maxillary molars usually have three roots. When an extra root is found on any of these teeth, the root is described as a supernumerary root.[1] The clinical significance of this condition is associated with dentistry when accurate information regarding root canal anatomy is required when root canal treatment is required [2] References1. ^{{cite book|vauthors = ((Olga A.C.Ibsen)),(( Joan Andersen Phelan ))|title=Oral Pathology for the Dental Hygienist - Pageburst E-Book on Kno6: Oral Pathology for the Dental Hygienist - Pageburst E-Book on Kno|url=https://books.google.com/books?id=8Z95AAAAQBAJ&pg=PA170|publisher=Elsevier Health Sciences|isbn=978-1-4557-7511-8|pages=170–}} 2. ^{{cite journal | vauthors = Mohammadi Z, Jafarzadeh H, Shalavi S, Bandi S, Patil S | title = Root and Root Canal Morphology of Human Third Molar Teeth | journal = J Contemp Dent Pract | volume = 16 | issue = 4 | pages = 310–3 | date = April 2015 | pmid = 26067735 }} External links{{Medical resources| DiseasesDB = | ICD10 = {{ICD10|K|00|2|k|00}} | ICD9 = {{ICD9|520.2}} | ICDO = | OMIM = | MedlinePlus = | eMedicineSubj = | eMedicineTopic = | MeshID = }}{{Developmental tooth disease}}{{dentistry-stub}} 1 : Developmental tooth disorders |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。