What causes concrescence of teeth?
The union of two teeth by cement is called concrescence 1 (Fig 1). This is due to the proximity of the roots of two teeth involved, especially when both or one of them is without functional activity of the periodontal tissues. The union of teeth by the dentin and or enamel, besides the cement, characterizes the fusion.
Which part of the tooth is fused in concrescence?
Concrescence describes fusion of two or more teeth by deposition of cementum following completion of root formation. It tends to occur most frequently in the maxilla with fusion of the roots of the second and third molars (Levitas 1965).
How common is concrescence?
How Common Is It? Concrescence shows up in 0.8 percent of extracted adult teeth and in 0.2 to 3.7 percent of extracted baby teeth, reports an article in the journal Case Reports in Dentistry. The uncommon dental condition is commonly found in the back molars.
What causes dilaceration?
The possible causes for dilaceration of a permanent tooth are traumatic dental injury to the primary predecessor, idiopathic developmental disturbance, a retained or ankylosed primary tooth, and the presence of supernumerary tooth or teeth.
What is the meaning of concrescence?
Definition of concrescence 1 : increase by the addition of particles. 2 : a growing together : coalescence.
What is Oligodontia?
Oligodontia is a rare genetic disorder which represents the congenital absence of more than six teeth in primary, permanent or both dentitions. It is usually a part of a syndrome and seldom occurs as an isolated entity.
What is Taurodontism of teeth?
Taurodontism is a developmental disturbance of a tooth in which body is enlarged at the expense of the roots. An enlarged pulp chamber, apical displacement of the pulpal floor and lack of constriction at the cementoenamel junction are the characteristic features. It appears most frequently as an isolated anomaly.
What is germination in dentistry?
Gemination occurs when a single bud splits and forms two teeth. Germination typically looks like a single enlarged tooth, so there’s no difference in your tooth count. People sometimes confuse gemination in teeth with tooth fusion, but tooth fusion is a different condition.
What is hypodontia and anodontia?
Anodontia is a genetic disorder defined as the absence of all teeth. It usually occurs as part of a syndrome that includes other abnormalities. Also rare but more common than anodontia are hypodontia and oligodontia. Hypodontia is genetic in origin and usually involves the absence of from 1 to 5 teeth.