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A retrospective study of the prevalence and characteristics of root dilaceration in a sample of the Turkish population

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Abstract

Objectives

We aimed to determine the prevalence and distribution of root dilaceration by tooth type and to investigate the relationship between trauma history and teeth with dilaceration in a large population of adult dental patients in Turkey.

Methods

Periapical radiographs of 9,406 permanent teeth from 5,504 patients were examined. Teeth were recognized as having mesial or distal root dilaceration if there was deviation of 90° or more from the normal long axis of the tooth. The patients’ biographic data, dilacerated and non-dilacerated teeth, and accidental trauma history were recorded. The Pearson Chi-square test was used to evaluate differences by sex and the Mann–Whitney U test was used to determine whether significant differences existed in the occurrence of dilaceration by age and side.

Results

In the 5,504 subjects (2,877 males and 2,627 females), 9,406 teeth (5,029 in males and 4,377 in females) were examined. The Mann–Whitney U test revealed no significant differences in root dilacerations by age (P = 0.6) The teeth most frequently observed with root dilaceration were mandibular third molars (10.7 %), followed by maxillary first molars (5.8 %), mandibular second molars (5.2 %), maxillary third molars (5.0 %), maxillary second molars (4.9 %), and mandibular third molars (4.9 %). Overall, there were 161 right and 156 left root dilacerations. In all patients, the root dilacerations were unilateral. Trauma occurred in 1 % (n = 59) of the population, and all cases were in the maxillary arch. Trauma involved 0.6 % of all teeth examined, and was most common in maxillary third molars (2.6 %), followed by maxillary first molars (1.9 %), maxillary second molars (1.3 %), and maxillary lateral incisors (1.3 %) (P > 0.05). In 252 of 317 dilacerated teeth (79 %), the dilaceration was observed in the apical third region.

Conclusions

Clinicians should consider the possibility of root dilaceration in teeth with trauma history. When other treatment (such as extraction, orthodontics) is required, identification of a dilaceration is important to ensure appropriate management. Periapical radiographs are the most appropriate way to diagnose the presence of root dilacerations.

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Conflict of interest

The authors declare that they have no conflict of interest.

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Authors and Affiliations

  1. Endodontics Department, Faculty of Dentistry, Ondokuz Mayis University, Atakum, Samsun, 55139, Turkey

    Emre Bodrumlu & Ersan Cicek

  2. Dentomaxillofacial Radiology Department, Faculty of Dentistry, Ondokuz Mayis University, Atakum, Samsun, Turkey

    Kaan Gunduz

  3. Dentomaxillofacial Radiology Department, GATA Medical of Science Dentistry School, Dıskapi, Ankara, Turkey

    Hakan Avsever

Authors
  1. Emre Bodrumlu
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  2. Kaan Gunduz
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  3. Hakan Avsever
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  4. Ersan Cicek
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Correspondence to Emre Bodrumlu.

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Bodrumlu, E., Gunduz, K., Avsever, H. et al. A retrospective study of the prevalence and characteristics of root dilaceration in a sample of the Turkish population. Oral Radiol 29, 27–32 (2013). https://doi.org/10.1007/s11282-012-0105-1

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  • DOI: https://doi.org/10.1007/s11282-012-0105-1

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