What is hyper taurodontism?

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 causes taurodontism?

The etiology of taurodontism is unclear, but it also appears in certain genetic syndromes. It is thought to be caused by the failure of Hertwig's epithelial root sheath diaphragm to invaginate at the proper horizontal level, resulting in a tooth with normal dentin, short roots, elongated body, and enlarged pulp.

When does taurodontism occur?

Taurodontism is a disorder of tooth development and occurs most commonly in permanent molar teeth. It refers to an elongation of the pulp chamber of the tooth, which can cause the tooth to lie deep in the jaw (aveolar process).

What is Hypotaurodont?

Hypotaurodont shows mild enlargement of the pulp chamber at the expense of the roots. In mesotaurodont the pulp shows moderate enlargement with short roots which are still separate, while in hypertaurodont the pulp chamber reaches the apical 3rd and then may break into two or four channels.

Do humans have Taurodont teeth?

In modern societies, taurodontism has been reported to account for less than about 5% of the human population, even though a wide discrepancy in the prevalence of the trait has been observed due to ethnic variations and different criteria used to interpret this trait (Jafarzadeh et al. 2008).

Taurodontism and MCQs

What is dental taurodontism?

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.

Is taurodontism hereditary?

Conditions affecting the development of the dentition are numerous and are caused by both environmental and genetic factors. Taurodontism can occur as either an isolated trait or as a component of a genetic syndrome.

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 taurodontism anthropology?

Taurodontism is defined as the enlargement of pulp chambers with the furcation area being displaced toward the apex of the root.

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.

Did Neanderthals have taurodontism?

Neanderthals are known to exhibit unique incisor morphology as well as enlarged pulp chambers in postcanine teeth (taurodontism). Recent studies suggest that their overall dental pattern (i.e., in morphologic trait frequencies) is also unique.

What is cause Hypercementosis?

Hypercementosis is excessive deposition of cementum on the tooth roots. In most cases, its cause is unknown. Occasionally, it appears on a supraerupted tooth after the loss of an opposing tooth. Another cause of hypercementosis is inflammation, usually resulting from rarefying or sclerosing osteitis.

What is Enameloma?

A developmental anomaly in which a small nodule of enamel is below the cementoenamel junction, usually at the bifurcation of molar teeth.

Is supernumerary teeth genetic?

Presence of supernumerary teeth is well-recognized clinical phenomenon. However, it is uncommon to find multiple supernumeraries in individuals with no other associated disease or syndrome. Presence of multiple supernumerary teeth is thought to have genetic component.

How common is cusp of Carabelli?

The cusp of Carabelli is most common among Europeans (75-85% of individuals) and rarest in Pacific Islands (35-45%), although no study is referenced here to back up that claim.

What is the second tooth in hypodontia?

The second premolars – these are the teeth right in front of your molars. One may sometimes be removed during braces treatment, but if your child is missing this permanent tooth, chances are it's due to hypodontia.

What is a Hypercementosis in dentistry?

Hypercementosis is a non-neoplastic condition characterised by excessive deposition of cementum on the roots of teeth. ¹. It may affect a single tooth or multiple teeth. The condition is asymptomatic and is detected on radiographic examination.

What is Dentinogenesis imperfecta?

Dentinogenesis imperfecta is a disorder of tooth development. This condition causes the teeth to be discolored (most often a blue-gray or yellow-brown color) and translucent.

What is Talon cusp?

Talon cusp is a rare dental anomaly in which a cusp-like mass of hard tissue protrudes from the cingulum area of maxillary or mandibular anterior teeth. The typical appearance of this projection is conical and resembles an eagle's talon.

How do you diagnose dilaceration?

Dilaceration of a crown can be visually observed in the mouth (provided the tooth is not impacted); however, radiographic examination is required to diagnose dilaceration in the root.

How common is dilaceration?

Results: Root dilaceration was detected in 0.3% of teeth and 7.2% of patients. It was distributed equally between the maxilla and mandible. Mandibular second molar was the most frequent dilacerated tooth (1.6%) followed by maxillary first molar (1.3%) and mandibular first molar (0.6%).

How are Native American teeth different?

Their back teeth tend to be flat on top, smooth on the front and the back, and have two roots instead of three. This is unlike many people with Native American ancestry who often have teeth that are shaped differently and have three roots.

What does the bull mean in dentistry?

BULL stands for buccal upper lower lingual. For example, to illustrate the BULL rule, the palatal cusp of a maxillary first molar contacts prematurely in a centric position as well as in the working eccentric position.

What is a pulp stone?

Introduction. Pulp stones are concentrations of calcification in the dental pulp. Their cause is unknown, and no firm evidence exists that they are associated with any systemic or pulpal disturbance (White SC, 2000.)

What causes condensing osteitis?

Inflammation and infections are thought to be the primary causes of condensing osteitis, which may be associated with other dental conditions. Pulpitis is one possible condition linked to this dental disease, which destroys tissue inside your teeth.