A retrospective study of the prevalence and characteristics of dens Invaginatus in a sample of the Turkish population

Günduz, Kaan; Çelenk, Peruze; Canger, Emin Murat; Zengin, Zeynep Büşra; Sümer, Pınar

doi:10.4317/medoral.18285

Cited by 31 publications

(28 citation statements)

References 24 publications

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“…Thirdly, in 2 teeth, more than 5 fissures were identified, all contacting the same mass of abnormal tissue, whereas multiple invaginations in human dens invaginatus are rare, with up to 3 invaginations having been reported, with each fissure typically leading to a separate invagination (30,35,36). Furthermore, based on existing veterinary literature, abnormalities that have been previously attributed to "dens invaginatus" appear to have a predilection for bilateral involvement of the mandibular first molar teeth (4), whereas dens invaginatus as reported in humans is most commonly reported to affect the maxillary second incisor tooth (37,38), bilateral involvement is only reported in 24-43% of cases (37)(38)(39)(40), and involvement of mandibular teeth is rare (12,37,38,40,41).…”

Section: Discussionmentioning

confidence: 99%

Mandibular Carnassial Tooth Malformations in 6 Dogs—Micro-Computed Tomography and Histology Findings

Rine

Choi

et al. 2019

Front. Vet. Sci.

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Objective: To document the clinical, radiographic, and histological characteristics of mandibular first molar teeth with developmental abnormalities previously attributed to dens invaginatus and enamel pearls in dogs. Materials and Methods: Affected mandibular first molar teeth from dogs were evaluated grossly and via intraoral radiography. Endodontically and/or periodontally compromised teeth were extracted and subjected to some combination of micro-computed tomography, histopathology, and immunohistochemistry with anti-amelogenin antibody. Results: Six dogs with developmental abnormalities of mandibular first molar teeth were identified, representing 11 affected teeth. The condition was bilateral in 5 dogs, while in 1 dog, only one mandibular first molar tooth was present. Patient weight ranged from 1.7 to 6 kg (median = 4.09 kg). On intraoral radiographs, root convergence or parallelism was noted in 6 of 11 teeth, and root dilaceration was noted in 3 of 11 teeth. Eight teeth required extraction due to periapical lucencies or periodontitis. On micro-CT, the abnormal teeth were characterized by the presence of abnormal, heterogenous hard tissue with beam attenuation characteristics midway between that of enamel and dentin. Enamel fissures were identified in 4 of 8 teeth, while ectopic radicular enamel was identified in 2 of 8 teeth. The abnormal tissue was traversed by channels measuring 20-40 µm in diameter. Channels communicated with the enamel fissures in 2/8 teeth, the furcation in 2/8 teeth and the pulp in 4/8 teeth. The abnormal tissue was frequently surrounded by disorganized dentin. Histologic features of enamel and dentin were absent from the abnormal tissue and immunohistochemistry to detect amelogenin in the abnormal tissue was negative in all samples. Conclusion: The dental abnormalities described here correspond to a previously unrecognized developmental abnormality involving the mandibular first molar teeth in dogs. The developmental origin of the abnormal tissue could not be ascertained, and further investigations are required to determine the mode of formation, origin of Ng et al. Mandibular Carnassial Tooth Malformations in 6 Dogs the abnormal tissue, and factors associated with development. These developmental abnormalities more closely resemble molar-incisor malformation, rather than dens invaginatus or enamel pearls as described in humans. The authors propose that affected mandibular first molar teeth simply be referred to as having carnassial tooth malformations.

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Section: Discussionmentioning

confidence: 99%

Mandibular Carnassial Tooth Malformations in 6 Dogs—Micro-Computed Tomography and Histology Findings

Rine

Choi

et al. 2019

Front. Vet. Sci.

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“…13 Ancak, Dİ teşhisi genellikle semptomatik bir patoloji sonucunda hastanın tedavi arayışı ile olmaktadır. 4,10 Buna rağmen, sol üst lateral dişinde Sınıf II Dİ bulunan ikinci olguda hastamızın şikayeti, gelişen fistül veya ağrı değil, diastemaları ve şekil bozukluğu bulunan dişinden kaynaklıydı.…”

Section: Discussionunclassified

Dens İnvaji̇natus Anomali̇si̇nde Farkli Tedavi̇ Yaklaşimlari: İki̇ Olgu Sunumu

Hatırlı¹,

YAŞA²

2016

Atatürk Üniversitesi Diş Hekimliği Fakültesi Dergisi

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“…6 Nevertheless, some studies report much lower ratios. 7,8 The most affected teeth are the maxillary lateral incisors, and bilateral occurrence is not uncommon. 4,6,9 The affected tooth may show no clinical symptoms, and, in most cases, the dens invaginatus is detected by chance on a radiograph.…”

Section: Introductionmentioning

confidence: 99%

Endodontic management of developmental anomalies: conservation of invaginated tissues in Type II dens invaginatus – case series

Pires¹,

Baruwa²,

Martins³

et al. 2019

j.rpemd

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Dens invaginatus is an uncommon occurrence in the permanent dentition. However, practitioners must be aware of this anatomical variation, as an early diagnosis may prevent the need for endodontic treatment. Clinically, root canal treatment of Oehler's Type II dens invaginatus may present a complex challenge. This paper reports two cases of non-surgical endodontic treatment and one case of non-surgical endodontic retreatment of upper lateral incisors diagnosed with Oehler's Type II dens invaginatus. All procedures were done maintaining the original anatomy of both the invagination and the root canal space to minimize dentin elimination. At follow-up appointments, resolution of apical pathosis was noted in all three cases, with no sign of structural strain. With the help of dedicated instruments, such as ultrasonic tips, and under magnification, the conservation of the invagination in Oehler's Type II dens invaginatus is a valid and successful treatment option. (Rev Port

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A retrospective study of the prevalence and characteristics of dens Invaginatus in a sample of the Turkish population

Cited by 31 publications

References 24 publications

Mandibular Carnassial Tooth Malformations in 6 Dogs—Micro-Computed Tomography and Histology Findings

Mandibular Carnassial Tooth Malformations in 6 Dogs—Micro-Computed Tomography and Histology Findings

Dens İnvaji̇natus Anomali̇si̇nde Farkli Tedavi̇ Yaklaşimlari: İki̇ Olgu Sunumu

Endodontic management of developmental anomalies: conservation of invaginated tissues in Type II dens invaginatus – case series

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