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Taurodontism: A dental rarity.

Jayashankara C, Shivanna AK, Sridhara K, Kumar PS - J Oral Maxillofac Pathol (2013)

Bottom Line: 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.

View Article: PubMed Central - PubMed

Affiliation: Departments of Conservative Dentistry and Endodontics, Sri Siddhartha Dental College, Tumkur, Karnataka, India.

ABSTRACT
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. But its association with several syndromes and abnormalities has also been reported. Endodontic treatment of taurodont teeth is stated to be complex and difficult due to the complexity in the tooth morphology. This case report presents a case of taurodontism in permanent maxillary molars and their successful endodontic treatment.

No MeSH data available.


Related in: MedlinePlus

Taurodontism index: vertical height of the pulp chamber (1) distance between the lowest point of the roof of the pulp chamber to the apex of the longest root (2) and distance between the baseline connecting the two cement-enamel junction and the highest point in the floor of the pulp chamber (3). Establishment of a condition of taurodontism is made when1/2 multiplied by 100 is above 20, and 3 exceeds 2.5 mm: (1/2)* 100 > 20 and 3 > 2.5 mm. Taurodontic index (TI) = 1/2 × 100. In this case TI= 61 and 3= 8 mm, clearly indicating hypertaurodontism
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Figure 1: Taurodontism index: vertical height of the pulp chamber (1) distance between the lowest point of the roof of the pulp chamber to the apex of the longest root (2) and distance between the baseline connecting the two cement-enamel junction and the highest point in the floor of the pulp chamber (3). Establishment of a condition of taurodontism is made when1/2 multiplied by 100 is above 20, and 3 exceeds 2.5 mm: (1/2)* 100 > 20 and 3 > 2.5 mm. Taurodontic index (TI) = 1/2 × 100. In this case TI= 61 and 3= 8 mm, clearly indicating hypertaurodontism

Mentions: Previously, taurodontism was related to syndromes such as Klinefelter's and Down's. Today it is considered as an anatomic variance that could occur in a normal population. Taurodontism has been graded according to its severity as least pronounced (hypotaurodontism), moderate (mesotaurodontism) and most severe (hypertaurodontism). Shifman and Channel[3] also included an index to calculate the degree of taurondontism as shown radiographically [Figure 1].


Taurodontism: A dental rarity.

Jayashankara C, Shivanna AK, Sridhara K, Kumar PS - J Oral Maxillofac Pathol (2013)

Taurodontism index: vertical height of the pulp chamber (1) distance between the lowest point of the roof of the pulp chamber to the apex of the longest root (2) and distance between the baseline connecting the two cement-enamel junction and the highest point in the floor of the pulp chamber (3). Establishment of a condition of taurodontism is made when1/2 multiplied by 100 is above 20, and 3 exceeds 2.5 mm: (1/2)* 100 > 20 and 3 > 2.5 mm. Taurodontic index (TI) = 1/2 × 100. In this case TI= 61 and 3= 8 mm, clearly indicating hypertaurodontism
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3927363&req=5

Figure 1: Taurodontism index: vertical height of the pulp chamber (1) distance between the lowest point of the roof of the pulp chamber to the apex of the longest root (2) and distance between the baseline connecting the two cement-enamel junction and the highest point in the floor of the pulp chamber (3). Establishment of a condition of taurodontism is made when1/2 multiplied by 100 is above 20, and 3 exceeds 2.5 mm: (1/2)* 100 > 20 and 3 > 2.5 mm. Taurodontic index (TI) = 1/2 × 100. In this case TI= 61 and 3= 8 mm, clearly indicating hypertaurodontism
Mentions: Previously, taurodontism was related to syndromes such as Klinefelter's and Down's. Today it is considered as an anatomic variance that could occur in a normal population. Taurodontism has been graded according to its severity as least pronounced (hypotaurodontism), moderate (mesotaurodontism) and most severe (hypertaurodontism). Shifman and Channel[3] also included an index to calculate the degree of taurondontism as shown radiographically [Figure 1].

Bottom Line: 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.

View Article: PubMed Central - PubMed

Affiliation: Departments of Conservative Dentistry and Endodontics, Sri Siddhartha Dental College, Tumkur, Karnataka, India.

ABSTRACT
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. But its association with several syndromes and abnormalities has also been reported. Endodontic treatment of taurodont teeth is stated to be complex and difficult due to the complexity in the tooth morphology. This case report presents a case of taurodontism in permanent maxillary molars and their successful endodontic treatment.

No MeSH data available.


Related in: MedlinePlus