Take Your Kids To The Dentist
Parents try to keep their children safe and healthy, but some medical conditions are hard to prevent due to a genetic predisposition. All developments that occur in the early years of life are important to future health and development. If one stage of development does not occur, the future health of the child is affected. Hypodontia and Oligodontia are the dental terms used to describe congenital missing permanent teeth. More specifically, hypodontia describes up to six missing teeth, and oligodontia describes more than six teeth missing. There are also cases in which all teeth fail to erupt, this is called anodontia.
Permanent teeth erupt between the ages of 12 and 14, and all primary teeth and the crypts of permanent molars are visible using radiography at time of birth. A radiography diagnoses of hypodontia or oligodontia can be made at an early point in life due to the visibility of the crypts, the spaces in which teeth will grow, before the development and eruption of teeth. But definite diagnosis should not be made until the age of 6, because formation of teeth vary based on gender and race. Teeth can be missing on either the left or right side of the jaw with the opposite side having a complete set of teeth, but teeth missing teeth on both sides of the jaw occur as well.
Factors that have an effect on the development and eruption of permanent teeth are environmental and genetical. Environmental effects that may cause hypodontia or oligodontia are fractures in the jaw occurring before tooth development, surgery on the jaw, chemo and radiation therapies, treatment for malignant diseases, irradiation procedures, and Thalidomide use during pregnancy. Thalidomide is a medication used for multiple myeloma and as a sedative. The genetic factor that causes hypodontia and oligodontia is a mutation chromosomes MSX1 and PAX9. There are thought to be mutations in other chromosomes that affect tooth development, but they have not been discovered yet. Screening tools for mutations in the MSX1 and PAX9 genes are used in research, but are not yet available for routine testing.
An open bite, a gap between teeth may be present in some cases between teeth where there are no missing teeth, and should be side-by-side. The way the teeth of the upper and lower jaw join together when the jaw is closed is called dental occlusion, and this may differ in children with congenital missing teeth. Teeth that are not effected by congenitally missing teeth and should appear normal may not erupt or only partially erupt due to the socket that the tooth is set in being too small to allow the tooth to fully emerge. The usual treatment for disarranged and open bite cases in people not suffering from congenital missing teeth is braces, unfortunately, victims of hypo/oligodontia do not respond to braces treatment and may wear partial dentures depending on the severity of the case.
Teeth that are present in the mouth of a victim may be smaller in size or/and deformed in shape compared to teeth from an unaffected person. Some teeth may be rotated, this means that the tooth is not facing the direction it should. The formation of unaffected teeth may be delayed and eruption may occur at a later then normal age. A condition called hypocalcification can be present in some cases due to the enamel layer on a tooth or teeth being too thin, causing dents or scrapes in teeth, discoloration of entire tooth, or spots of discoloration.
Only approximately 2.8% of the US population suffers from congenital missing teeth, and, in most cases, only two teeth are missing. The mandibular premolars and the maxillary central incisors are the most common teeth that fail to erupt. If there is a history of hypodontia or oligodontia in either of the parents families, then there is a high possibility that a child born to those parents will have congenitally missing teeth. If the child is female, the possibility increases slightly because studies show a slight increase of predominance in females.
Our friendly Olympia Dentist gives tips and quality information with all of our local community. See your Olympia Dentistry or your local dentist today.