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open the ear canal •Seigle's pneumatic speculum: open the ear canal and give a magnification; test the mobility of tympanic membrane; see a magnified image of small perforations; introduce medicine into middle ear; perform Fistula test for vestibular function •Aural/Ear speculum: to fit in and straighten the external ear canal: Lack's ...
The belief that tooth decay and dental pain is caused by tooth worms is found in ancient India, Egypt, Japan, and China, [9] and persists until the Age of Enlightenment. Although toothache is an ancient problem, [ 55 ] : 48–52 it is thought that ancient people suffered less dental decay due to a lack of refined sugars in their diet.
Tooth development can be delayed with increasing severity of CLP. Some of the dental problems affect the primary teeth, but most of the problems arise after the permanent teeth erupt. Problems may include fused teeth, missing teeth, and extra teeth erupting behind normal teeth. Missing teeth or extra teeth are both normal occurrences.
The trigeminal nerve.. ATN is usually attributed to inflammation or demyelination, with increased sensitivity of the trigeminal nerve.These effects are believed to be caused by infection, demyelinating diseases, or compression of the trigeminal nerve (by an impinging vein or artery, a tumor, dental trauma, accidents, or arteriovenous malformation) and are often confused with dental problems.
Pericoronitis is inflammation of the soft tissues surrounding the crown of a partially erupted tooth, [1] including the gingiva (gums) and the dental follicle. [2] The soft tissue covering a partially erupted tooth is known as an operculum, an area which can be difficult to access with normal oral hygiene methods.
For example, very curvy ear canals, narrow ear canals, or surgical ears are more prone to earwax buildup. When wax builds up, it causes muffled hearing, tinnitus, or aural fullness (plugged-up ...
The tooth is filled and a crown can be placed. Upon completion of root canal therapy, the tooth is non-vital, as it is devoid of any living tissue. An extraction can also serve as treatment for dental caries. The removal of the decayed tooth is performed if the tooth is too far destroyed from the decay process to effectively restore the tooth.
Ototoxicity is the property of being toxic to the ear (oto-), specifically the cochlea or auditory nerve and sometimes the vestibular system, for example, as a side effect of a drug. The effects of ototoxicity can be reversible and temporary, or irreversible and permanent. It has been recognized since the 19th century. [1]