Prevention of tooth eruption by a physical barrier
Mandibular canine impacted in the chin
3D CT of mandibular canine impacted in the chin
An impacted tooth is one that fails to erupt into the dental arch within the expected developmental window.
Because impacted teeth do not erupt, they are retained throughout the individual's lifetime unless extracted or exposed surgically. Teeth may become impacted because of adjacent teeth, dense overlying bone, excessive soft tissue or a genetic abnormality. Most often, the cause of impaction is inadequate arch length and space in which to erupt. That is the total length of the alveolar arch is smaller than the tooth arch (the combined mesiodistal width of each tooth). The wisdom teeth (third molars) are frequently impacted because they are the last teeth to erupt in the oral cavity. Mandibular third molars are more commonly impacted than their maxillary counterparts.
Some dentists believe that impacted teeth should be removed[1] except, in certain cases, canine teeth: canines may just remain buried and give no further problems, thus not requiring surgical intervention.[2] However, removal of asymptomatic, pathology-free, impacted teeth is not a medical consensus:[3][4] watchful monitoring may be a more prudent and cost-effective strategy[5][6][7] and make the future placement of a dental implant through such impacted tooth a feasible approach.[8]
^Miloro M, Ghali GE, Larsen P, Waite P (2004). Peterson's Principles of Oral and Maxillofacial Surgery. Vol. 1. B C Decker. ISBN 9781550092349. Retrieved 2015-08-22.
^"Impacted teeth including surgery for canine teeth". Cambridge University Hospitals. Cambridge, UK. Retrieved 2015-08-22.
^"Wisdom tooth removal". The National Health Service.
^Friedman JW (September 2007). "The prophylactic extraction of third molars: a public health hazard". American Journal of Public Health. 97 (9): 1554–1559. doi:10.2105/AJPH.2006.100271. PMC 1963310. PMID 17666691.
^Ghaeminia H, Nienhuijs ME, Toedtling V, Perry J, Tummers M, Hoppenreijs TJ, et al. (May 2020). "Surgical removal versus retention for the management of asymptomatic disease-free impacted wisdom teeth". The Cochrane Database of Systematic Reviews. 5 (5): CD003879. doi:10.1002/14651858.CD003879.pub5. PMC 7199383. PMID 32368796.
^Anjrini AA, Kruger E, Tennant M (July 2015). "Cost effectiveness modelling of a 'watchful monitoring strategy' for impacted third molars vs prophylactic removal under GA: an Australian perspective". British Dental Journal. 219 (1): 19–23. doi:10.1038/sj.bdj.2015.529. PMID 26159980. S2CID 7178870.
^Kandasamy S (July 2011). "Evaluation and management of asymptomatic third molars: Watchful monitoring is a low-risk alternative to extraction". American Journal of Orthodontics and Dentofacial Orthopedics. 140 (1): 11–17. doi:10.1016/j.ajodo.2011.05.008. PMID 21724081.
^Mithridade D, Serge SM, Keyvan D, Nedjoua CO, Georgy D, Philippe R (January 2015). "Unconventional Implant Placement IV. Implant Placement through Impacted Teeth to Avoid Invasive Surgery. Long-term Results of 3 Cases". The Open Dentistry Journal. 9: 15–20. doi:10.2174/1874210601509010015. PMC 4319210. PMID 25674167.
cause of impaction is inadequate arch length and space in which to erupt. That is the total length of the alveolar arch is smaller than the tooth arch (the...
classified by their direction of impaction, their depth compared to the biting surface of adjacent teeth and the amount of the tooth's crown that extends through...
impacted wisdom tooth belonged to a European woman who lived between 13,000 and 11,000 BCE, in the Magdalenian period. Nonetheless, molar impaction was relatively...
prematurely stopped, the tooth is said to be impacted. The most common cause of toothimpaction is lack of space in the mouth for the tooth. Other causes may...
at the age of wisdom tooth eruption (15-26). Other common causes of similar pain from the third molar region are food impaction causing periodontal pain...
rectum Dental impaction, the failure of a tooth fully to erupt into the mouth because of obstruction from another tooth Aerosol impactionImpact (disambiguation)...
infraocclusion of the ankylosed tooth, inclination of the teeth adjacent to the space. Subsequently, impaction of the permanent successor tooth would result. In light...
process. There are reports of eagles syndrome been elicited after wisdom tooth removal. Radiograph, lateral view showing elongated stylohyoid process and...
Resorption of the root of the tooth, or root resorption, is the progressive loss of dentin and cementum by the action of odontoclasts. Root resorption...
include inflammation of the tissue around the tooth, tooth loss and infection or abscess formation. Tooth regeneration is an on-going stem cell based field...
lodgement, which could lead to patients reporting increased bleeding when tooth brushing. Signs: They tend to appear in early adolescence and may very slowly...
the infant or mother. However some recommend that they be removed as the tooth can cut or amputate the tip of the tongue. They should be left in the mouth...
Tooth discoloration is abnormal tooth color, hue or translucency. External discoloration is accumulation of stains on the tooth surface. Internal discoloration...
of a tooth root, most commonly caused by bacterial invasion of the pulp of the tooth. It is a likely outcome of untreated dental caries (tooth decay)...
teeth will have little impact on speech and orthodontic treatment has little effect on fixing any problems. Toothimpaction: these can cause resorption...
as an amorphous radiopaque (light) area around a tooth. There is no sign of inflammation of the tooth, and if the island is associated with the root the...
Tooth wear refers to loss of tooth substance by means other than dental caries. Tooth wear is a very common condition that occurs in approximately 97%...
response to bacterial biofilms (also called plaque) that are attached to tooth surfaces, termed plaque-induced gingivitis. Most forms of gingivitis are...
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