Third Molar Eruption Mechanisms and Patterns
DOI:
https://doi.org/10.5195/d3000.2016.49Klíčová slova:
Third molars, etiology, impacted, abnormality, hereditaryAbstrakt
Third molars are highly variable in their presence and form. This report focuses on a horizontally impacted third molar and analyzes the potential etiology of this situation. Upon a clinical and radiographic examination, it was noted that the patient had four third molars present. The patient’s third molars began erupting around the age of 19. Currently, they are asymptomatic with incipient caries on the occlusal surfaces. While three of the third molars erupted in a normal orientation, one of the third molars (mandibular left) erupted in an orientation that would be classified as horizontal and/or mesio-angular. No treatment has been undertaken at the moment, however surgical extraction can be recommended with the prognosis being very good. For the clinician that has to treat dental complications that arise from abnormal tooth eruption, as seen in numerous genetic and acquired disorders, knowledge about the basic molecular mechanisms involved may become extremely important.
Reference
Prevalence of impacted teeth and associated pathologies--a radiographic study of the Hong Kong Chinese population. Chu FC, Li TK, Lui VK, Newsome PR, Chow RL, Cheung LK. Hong Kong Med J. 2003 Jun;9(3):158-63. PMID:12777649.
Mandibular third molar impaction: review of literature and a proposal of a classification.
Juodzbalys G, Daugela P. J Oral Maxillofac Res. 2013 Jul 1;4(2):e1. PMID:24422029.
Cellular, molecular, and genetic determinants of tooth eruption. Wise GE, Frazier-Bowers S, D'Souza RN. Crit Rev Oral Biol Med. 2002;13(4):323-34. PMID:12191959.
Patterns of third-molar agenesis and associated dental anomalies in an orthodontic population. Celikoglu M, Bayram M, Nur M. Am J Orthod Dentofacial Orthop. 2011 Dec;140(6):856-60. PMID:22133951.
Third molar agenesis and size reduction of the remaining teeth.
Garn SM, Lewis AB, Kerewsky RS. Nature. 1963 Nov 2;200:488-9. PMID:14076752.
Third molar agenesis and variation in size of the remaining teeth.
Garn SM, Lewis AB, Kerewsky RS. Nature. 1964 Feb 22;201:839. PMID:14161232.
Third molar impaction and agenesis: Influence on anterior crowding. Esan T, Schepartz LA. Ann Hum Biol. 2016 Feb 8:1-29. PMID:26856343.
Stahování
Publikováno
Číslo
Sekce
Licence
Authors who publish with this journal agree to the following terms:
- The Author retains copyright in the Work, where the term “Work” shall include all digital objects that may result in subsequent electronic publication or distribution.
- Upon acceptance of the Work, the author shall grant to the Publisher the right of first publication of the Work.
- The Author shall grant to the Publisher and its agents the nonexclusive perpetual right and license to publish, archive, and make accessible the Work in whole or in part in all forms of media now or hereafter known under a Creative Commons Attribution 4.0 International License or its equivalent, which, for the avoidance of doubt, allows others to copy, distribute, and transmit the Work under the following conditions:
- Attribution—other users must attribute the Work in the manner specified by the author as indicated on the journal Web site;
- The Author is able to enter into separate, additional contractual arrangements for the nonexclusive distribution of the journal's published version of the Work (e.g., post it to an institutional repository or publish it in a book), as long as there is provided in the document an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post online a prepublication manuscript (but not the Publisher’s final formatted PDF version of the Work) in institutional repositories or on their Websites prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work. Any such posting made before acceptance and publication of the Work shall be updated upon publication to include a reference to the Publisher-assigned DOI (Digital Object Identifier) and a link to the online abstract for the final published Work in the Journal.
- Upon Publisher’s request, the Author agrees to furnish promptly to Publisher, at the Author’s own expense, written evidence of the permissions, licenses, and consents for use of third-party material included within the Work, except as determined by Publisher to be covered by the principles of Fair Use.
- The Author represents and warrants that:
- the Work is the Author’s original work;
- the Author has not transferred, and will not transfer, exclusive rights in the Work to any third party;
- the Work is not pending review or under consideration by another publisher;
- the Work has not previously been published;
- the Work contains no misrepresentation or infringement of the Work or property of other authors or third parties; and
- the Work contains no libel, invasion of privacy, or other unlawful matter.
- The Author agrees to indemnify and hold Publisher harmless from Author’s breach of the representations and warranties contained in Paragraph 6 above, as well as any claim or proceeding relating to Publisher’s use and publication of any content contained in the Work, including third-party content.
Revised 7/16/2018. Revision Description: Removed outdated link.