Türk Popülasyonundan Bir Örneklemde Molar Dişlerde Görülen Taurodontizm Prevalansının Radyografik Olarak İncelenmesi

Amaç: Taurodontizm, dişin anatomik yapısıyla karakterize gelişimsel bir anomalidir. Dişin yapısal anomalilerinin en önemlilerinden biri olan taurodontizm, radyografide vertikal olarak uzamış pulpa odası, apikale doğru yer değiştirmiş pulpa tabanı ve iki ya da üçe ayrılmış normale göre kısa kök/kanal yapıları ile kendini göstermektedir. Taurodont dişler köklerin sayısı, şekli ve karmaşık anatomisi nedeniyle anormal kök kanallarına sahiptir. Bu çalışmanın amacı Kütahya Sağlık Bilimleri Üniversitesi Diş Hekimliği Fakültesi Endodonti Anabilim Dalı’na başvuran hastalar arasında taurodontizm prevalansını belirlemek, lokalizasyonu, dağılımını, cinsiyetler arasındaki farklılığını incelemektir. Gereç ve Yöntemler: Bu çalışmada çeşitli dental problemler nedeniyle Kütahya Sağlık Bilimleri Üniversitesi Diş Hekimliği Fakültesi Endodonti Anabilim Dalı’na Mart 2016 – Mart 2018 tarihleri arasında başvuran 500 hastanın dijital panoramik radyografları taurodontizm açısından retrospektif olarak incelendi. Taurodontizm tiplerinin görülme sıklığı ile cinsiyet ve çeneler açısından görülme oranları değerlendirildi. Elde edilen verilerin istatistiksel analizi Pearson ki-kare testi ile yapıldı. Bulgular: Çalışmada toplam 500 adet panoramik radyografi (279 erkek, 221 kadın) değerlendirildi. Bu radyografların 37 (% 7.4)’sinde ve incelenen 4126 molar dişin 56 (% 1.4)’sında taurodontizm anomalisi saptandı. Bu dişlerin 26 (% 46.4) tanesi hipotaurodont, 10 (% 17.9) tanesi mezotaurodont, 7 (% 12.5) tanesi hipertaurodont ve 13 (% 23.2) tanesi piramidal diş olarak sınıflandırıldı. Taurodont dişlerin 37 (% 66.1)’sinin mandibulada, 19 (% 33.9)’unun maksillada olduğu görüldü. Mandibulada taurodontizm prevalansının maksillaya oranla daha yüksek olduğu tespit edildi (p < 0.05). Kadınlarda taurodontizm prevalansı erkeklerden anlamlı derecede daha yüksek bulundu (p < 0.05). Sonuç: Taurodontizm yaygın olarak görülen klinik bir anomalidir. Hekimler molar dişlere endodontik tedavi planlarken, bu dişlerde görülebilecek taurodontizm anomalisi açısından dikkatli olmalıdır

Radiographic analysis of the prevalence of taurodontism in molar teeth in a sample from the Turkish population

Background: Taurodontism is a developmental anomaly characterized by the anatomical structure of the tooth. Taurodontism, which is one of the most important of the structural anomalies of the tooth, is manifested by elongated pulp chamber, displaced pulp floor towards the apical, and divided into two or three short root/ canal structures on the radiograph. Taurodont teeth have abnormal root canals due to the number, shape and complex anatomy of the roots. The aim of this study is to determine the prevalence of taurodontism and to examine its localization, distribution and gender differences among patients who applied to the Faculty of Dentistry of Kutahya Health Sciences University. Methods: In this study, digital panoramic radiographs of 500 patients who applied to the Kutahya Health Sciences University Faculty of Dentistry Department of Endodontics between March 2016 to March 2018 due to various dental problems were analyzed retrospectively in terms of taurodontism. The frequency of the types of taurodontism and their incidence in terms of gender and jaws were evaluated. Statistical analysis of the data obtained was done by Pearson chi-square test. Results: A total of 500 panoramic radiographs (279 men, 221 women) were evaluated in the study. Taurodontism anomaly was detected in 37 (7.4%) of these radiographs and 56 (1.4%) of 4126 molar teeth examined. 26 (46.4%) of these teeth were classified as hypotaurodont, 10 (17.9%) were mesotaurodont, 7 (12.5%) were hyperturodont and 13 (23.2%) were pyramidal teeth. It was observed that 37 (66.1%) of the taurodont teeth were in the mandible and 19 (33.9%) were in the maxilla. It was found that the prevalence of taurodontism was higher in the mandible than the maxilla (p < 0.05). The prevalence of taurodontism was higher in females than in males (p < 0.05). Conclusion: Taurodontism is a common clinical anomaly. While dentists are planning endodontic treatment for molar teeth, they should be careful in terms of taurodontism anomaly that can be observed in these teeth

PDF

___

1. Brkic ́ H, Filipovic ́ I. The meaning of taurodontism in oral surgery – case report. Acta Stomatol Croat 1991;25:123–7.
2. Rao A, Arathi R. Taurodontism of deciduous and permanent molars: report of two cases. J Indian Soc Pedod Prev Dent 2006;24:42–4.
3. Keith A. Problems relating to the teeth of the earlier forms of pre-historic man. Proc R Soc Med 1913;6:103- 24.
4. Hammer JE III, Witkop CJ Jr, Metro PS. Taurodontism: report of a case. Oral Surgery 1964;18:409–18. 5. Pickerill HP. Radicular aberrations. Proc R Soc Med 1909;2:145-61.
6. Pillai KG, Scipio JE, Nayar K, Louis N. Prevalence of taurodontism in premolars among patients at a tertiary care institution in Trinidad. West Indian Med J 2007;56:368-71.
7. Hammer JE III, Witkop CJ Jr, Metro PS. Taurodontism: report of a case. Oral Surgery 1964;18:409–18.
8. Jaspers MT. Taurodontism in Down’s syndrome. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 1981;51:632–6.
9. Alpöz AR, Eronat C. Taurodontism in children associated with trisomy 21 syndrome. J Clin Pediatr Dent 1997;22:37–9.
10.Yeh SC, Hsu TY. Endodontic treatment in taurodontism with Klinefelter’s syndrome: a case report. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 1999;88:612– 5.
11.Tomona N, Smith AC, Guadagnini JP, Hart TC. Craniofacial and dental phenotype of Smith-Magenis syndrome. Am J Med Genet A 2006;140:2556–61.
12.Shifman A, Chanannel I. Prevalence of taurodontism found in a radiographic dental examination of 1,200 young adult Israeli patients. Community Dent Oral Epidemiol 1978;6:200–3.
13.Shaw JC. Taurodont teeth in South African races. J Anat 1928;62:476-98.
14.Bürklein S, Breuer D, Schäfer E. Prevalence of taurodont and pyramidal molars in a German population. J Endod 2011;37:158–62.
15.Barker BC. Taurodontism: the incidence and possible significance of the trait. Aust Dent J 1976;21:272-6.
16.MacDonald-Jankowski DS, Li TT. Taurodontism in a young adult Chinese population. Dentomaxillofac Radiol 1993;22:140-4.
17.Jafarzadeh H, Azarpazhooh A, Mayhall JT. Taurodontism: a review of the condition and endodontic treatment challenges. Int Endod J 2008;41:375–88.
18.Benediktsdottir IS, Hintze H, Petersen JK, Wenzel A. Accuracy of digital and film panoramic radiographs for assessment of position and morphology of mandibular third molars and prevalence of dental anomalies and pathologies. Dentomaxillofac Radiol 2003;32:109–115.
19.Nawa H, Oberoi S, Vargervik K. Taurodontism and Van der Woude syndrome. Is there an association? Angle Orthod 2008;78:832-7.
20.Laatikainen T, Ranta R. Taurodontism in twins with cleft lip and/or palate. Eur J Oral Sci 1996;104:82-6.
20.Laatikainen T, Ranta R. Taurodontism in twins with cleft lip and/or palate. Eur J Oral Sci 1996;104:82- 6.
21.Barker BC. Taurodontism: the incidence and possible significance of the trait. Aust Dent J 1976;21:272-6.
22.MacDonald-Jankowski DS, Li TT. Taurodontism in a young adult Chinese population. Dentomaxillofac Radiol 1993;22:140-4.
23.Komatz Y, Tomoyoshi T, Yoshida O, Fujimoto A, Yoshitake K. Taurodontism and Klinefelter’s syndrome. J Med Genet 1978;15:452-4.
24.Darwazeh AM, Hamasha AA, Pillai K. Prevalence of taurodontism in Jordanian dental patients. Dentomaxillofac Radiol 1998;27:163-5.
25.Manjunatha BS, Kovvuru SK. Taurodontism: A Review on its etiology, prevalence and clinical considerations. J Clin Exp Dent 2010;2:187-90.
26.Tsesis I, Shifman A, Kaufman AY. Taurodontism: an endodontic challenge: report of a case. J Endod 2003;29:353-5.
27.Yeh SC, Hsu TY. Endodontic treatment in taurodontism with Klinefelter’s syndrome: A case report. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 1999;88:612-5.
28.Darwazeh AM, Hamasha AA, Pillai K. Prevalence of taurodontism in Jordanian dental patients. Dentomaxillofac Radiol 1998;27:163-5.
29.Ruprecht A, Batniji S, el-Neweihi E. The incidence of taurodontism in dental patients. Oral Surg Oral Med Oral Pathol 1987;63:743-7.
30.Bilge NH, Yeşiltepe S, Törenek Ağırman K, Çağlayan F, Bilge OM. Investigation of prevalence of dental anomalies by using digital panoramic radiographs. Folia Morphol (Warsz) 2018;77:323– 8.
31.Jamshidi D, Tofangchiha M, Jafari Pozve N, Mohammadpour M, Nouri B, Hosseinzadeh K. Prevalence of taurodont molars in a selected Iranian adult population. Iran Endod J 2017;12:282–7.
32.Weckwerth GM, Santos CF, Brozoski DT, Centurion BS, Pagin O, Lauris JR, et al. Taurodontism, root dilaceration, and tooth transposition: a radiographic study of a population with nonsyndromic cleft lip and/or palate. Cleft Palate Craniofac J 2016;53:404–12.
33.MacDonald-Jankowski DS. Multiple dental developmental anomalies. Dentomaxillofac Radiol 1991;20:166–8.
34.Varrela J, Alvesalo L. Taurodontism in females with extra X chromosomes. J Craniofac Genet Dev Biol 1989;9:129–33.
35.Alvesalo L, Varrela J. Taurodontism and the presence of an extra Y chromosome: study of 47, XYY males and analytical review. Hum Biol 1991;63:31–8.
36.Varrela J, Alvesalo L. Taurodontism in 47, XXY males: an effect of the extra X chromosome on root development. J Dent Res 1988;67:501–2.
37.MacDonald-Jankowski DS, Li TT. Taurodontism in a young adult Chinese population. Dentomaxillofac Radiol. 1993;22:140-4.
38.Bronoosh P, Haghnegahdar A, Dehbozorgi M. Prevalence of taurodontism in premolars and molars in the South of Iran. J Dent Res Dent Clin Dent Prospect 2012;6:21-4.
39.Çolak, H, Tan E, Bayraktar Y, Hamidi MM, Çolak, T. Taurodontism in a central anatolian population. Dent Res J 2013;10:260-3.
40.Manjunatha BS, Kovvuru SK. Taurodontism: A Review on its etiology, prevalence and clinical considerations. J Clin Exp Dent 2010;2:1-5.