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the condition of being wedged in firmly.
bony impaction a dental impaction in which the blockage consists of both bone and soft tissue.
dental impaction the blocking of a tooth by a physical barrier, such as a neighboring tooth, so that it cannot erupt; see also impacted tooth.
Impaction of the third molar. From Dorland's, 2000.
fecal impaction see fecal impaction.
soft tissue impaction a dental impaction in which the blockage consists of soft tissue only.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


The process or condition of being impacted.
Farlex Partner Medical Dictionary © Farlex 2012


The process or condition of being impacted.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


1. The condition of being forced into and retained in any part of the body.
2. The situation in which the ends of a fractured bone are firmly driven into each other so that movement at the fracture site does not occur.
3. Retention of an unerupted tooth in the jaw by obstruction by another tooth, especially a molar, so that its normal appearance is prevented.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005


A condition in which earwax has become tightly packed in the outer ear to the point that the external ear canal is blocked.
Mentioned in: Cerumen Impaction
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.


The process or condition of being impacted.
Medical Dictionary for the Dental Professions © Farlex 2012

Patient discussion about impaction

Q. what is the impact of masturbation? because I diden't find my girl?

A. the only physical impact i know is an addiction that can occur when doing it way too much. doing it releases chemicals in our brain in the pleasure areas. you can easily get addicted to it.

Q. This is mostly for people who have ADHD/ ADD or know someone with it. How is it impacted your life? If you have ADHD/ADD, what type of an impact has it had on the people who are close to you? If you know someone with ADHD/ADD, how have they made an impact on your life?

A. ADD can be a little hard to live with especially if it's not being treated. Having ADD makes it hard to stay focused on one thing for a long period of time. I have to make sure that I pack plenty to do when i go to school or else i would never make it through the whole day in a good mood. It isn't all bad though, I'm really good a multi-tasking. I can be working on six different things at once and get them done in a timely manner, whereas if i was just working on one thing it would most likely take me the whole day to finish it. Hope this helps.

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References in periodicals archive ?
Now the question arises whether it is non- shedding primary teeth that led to impaction of succedaneous teeth or is it failure of eruption of succedaneous teeth or lack of eruptive forces that led to retainment of primary teeth, is open to debate.
Impacted maxillary canine is considered 2nd most impaction after third molars.9,10 MIC is rare clinical situation in orthodontics and is reported to be in the range of less than twice to 20 times less than maxillary canine impaction.11-13 The etiology of MIC include both genetic and environment factors.12 MIC can labially or lingually displaced and some times transmigrated.
Stress associated with introduction into a new environment, the absence of pasture or grass in the paddocks where the geese were introduced, inadequate availability of food, and clearly visible sand in the paddocks may have been predisposing factors for the development of sand ingestion and impaction in this goose.
Otherwise these should be avoided, as impaction to bezoar (concretions) formation will result, especially in the incontinent patient.
The maxillary canine is the last tooth to erupt with a primary predecessor so it is susceptible to environmental influences that may affect its eruption leading to its impaction.
In the age group of 31-35 years, the results from Graphs 5 and 6 show the horizontal and distoangular third molar impactions (67%) which more frequently cause an effect on adjacent second molar which results in decay while the vertical third molar impactions (33%) show the least effect on adjacent second molar.
Another study by Ahmad et al15 concluded that the prevalence of impacted teeth was high, and there was a predominant for impaction of the mandibular third molars in this study of Al Ahsa Saudi population.
Moreover, the visibility of fish bones varies with respect to different fish species, its anatomic location of impaction and orientation within the upper aerodigestive tract.7 Plain radiograph has poor sensitivity and specificity.
(18) Ultrasound and positive contrast fluoroscopy can help further characterize gastrointestinal abnormalities and differentiate between gastric impactions with partial or complete obstruction.
An immediate upper intestinoscopy was undertaken in order to exclude esophageal impaction and two button batteries were removed from the stomach of the patient.
The following are recommendations for the management of ingested for foreign bodies and food impactions (9):
A foreign body impaction (FBI) in the esophagus can be a serious condition with high mortality rate among children and adults.