Imaging characteristics of Gubernacular Tract on CBCT- A pictorial review

Chaudhry, Anand P.; Sobti, Geetika

doi:10.1007/s11282-020-00461-y

Cited by 15 publications

(27 citation statements)

References 11 publications

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“…However, there are not enough studies on the GT. Evaluation of the GT with CBCT may help to more accurately predict possible eruption of permanent teeth (1,2,4,19,26,27) Although the GT is seen radiographically as a 1-3 mm diameter canal, it is often difficult to detect by clinicians on radiographs. In particular, the characteristic of the canal, the appearance of teeth germ in various densities, limits the detectability of the canal in coronal and sagittal sections (28).…”

Section: Discussionmentioning

confidence: 99%

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Retrospective Evaluation of the Gubernacular Tract in Impacted/Unerupted Teeth with Cone-Beam Computed Tomography

Uğurlu¹,

Kiliç²,

Yılmaz³

et al. 2021

JIAM

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Aim: Gubernaculum dentis guides the tooth eruption. This formation, which disappears after teething, continues to exist in impacted teeth. This study aimed to evaluate the gubernacular tract in patients with impacted/unerupted teeth who had previously received Cone-beam Computed Tomography (CBCT) for a variety of reasons. Material and Methods:In this study, the presence and characteristics of the gubernacular tract were evaluated according to age, gender, tooth groups, root development stages and positions of the teeth. 231 patients were included in this study. A total of 431 teeth were evaluated and the mean age of the patients was 28.0±0.90. Impacted teeth were classified according to their location.The presence and features of the gubernacular tract were evaluated using CBCT.Results: In the study, the presence of gubernacular tract was most common in canines. The mesioangular and vertical position of impacted teeth exhibited higher gubernacular tract presence, and these data were statistically significant. (P<0.05) Conclusion:This study stated that the frequency of incidence in the tooth groups was evaluated separately, it was determined that the incidence in canine teeth was significantly higher. Characteristics gubernacular tract such as no change, obliteration or contraction are more common in impacted teeth in vertical and mesioangular positions. This process may affect the impact of permanent teeth, but more studies with clinical follow-up are needed to reach definitive conclusions.

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Section: Discussionmentioning

confidence: 99%

“…Therefore, for the diagnosis of a clinically impacted tooth, it is necessary to know the movement and time of eruption of the teeth (18). Gubernaculum dentis is our biggest source of information about eruption (19). If there are no teeth on palpation and bone deficiency until the age of 10 years, radiographic examination is required (20).…”

Section: Introductionmentioning

confidence: 99%

Retrospective Evaluation of the Gubernacular Tract in Impacted/Unerupted Teeth with Cone-Beam Computed Tomography

Uğurlu¹,

Kiliç²,

Yılmaz³

et al. 2021

JIAM

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“…Later, at the bell stage of molar development, apoptosis can be detected in the secondary enamel knots (SEKs) and surrounding cells, including the stratum intermedium and adjacent mesenchyme (Vaahtokari et al, 1996). After the disappearance of the enamel knots, apoptotic cells appear in the superficial part of the dental lamina (Lungová et al, 2011), which develops in mouse as just a short epithelial connection between the tooth germ and the oral epithelium, sometimes called the dental stalk or the gubernaculum (Dosedelova et al, 2015;Chaudhry and Sobti, 2020). After the molar is fully formed, apoptotic cells are also involved in the tooth eruption stage, exhibiting concentrations in the oral epithelium above the erupting teeth as well as the superficial part of the dental lamina (Moriguchi et al, 2010;Dosedelova et al, 2015; Figure 1).…”

Section: Mammaliamentioning

confidence: 99%

Role of Cell Death in Cellular Processes During Odontogenesis

Abramyan

Geetha-Loganathan

Šulcová

et al. 2021

Front. Cell Dev. Biol.

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The development of a tooth germ in a precise size, shape, and position in the jaw, involves meticulous regulation of cell proliferation and cell death. Apoptosis, as the most common type of programmed cell death during embryonic development, plays a number of key roles during odontogenesis, ranging from the budding of the oral epithelium during tooth initiation, to later tooth germ morphogenesis and removal of enamel knot signaling center. Here, we summarize recent knowledge about the distribution and function of apoptotic cells during odontogenesis in several vertebrate lineages, with a special focus on amniotes (mammals and reptiles). We discuss the regulatory roles that apoptosis plays on various cellular processes during odontogenesis. We also review apoptosis-associated molecular signaling during tooth development, including its relationship with the autophagic pathway. Lastly, we cover apoptotic pathway disruption, and alterations in apoptotic cell distribution in transgenic mouse models. These studies foster a deeper understanding how apoptotic cells affect cellular processes during normal odontogenesis, and how they contribute to dental disorders, which could lead to new avenues of treatment in the future.

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“…In our previous reports, we described the successful visualization of the GT in teeth on CT and elucidated the significance of GTs for normal tooth eruption, the characteristics of GTs in delayed or supernumerary teeth, and the usefulness of differential diagnoses between odontogenic and non-odontogenic masses [ 12 , 13 , 14 , 15 , 16 ]. Subsequently, numerous reports on the GT were published [ 5 , 6 , 17 , 18 , 19 , 20 ]. The GCo was previously considered not to be associated with the eruption process [ 3 ].…”

Section: Recent Radiological Investigations and Future Studies On Gtsmentioning

confidence: 99%

“…We reported that the imaging characteristics of GTs at the top of odontogenic and non-odontogenic masses were useful for differential diagnoses [ 13 , 14 , 15 , 16 ]. Subsequently, radiological studies on GTs, including our previous reports, began receiving more attention [ 5 , 6 , 17 , 18 , 19 , 20 ]. In this review, we summarize our previous studies, including those on the imaging characteristics of GTs, and review the recent literature on GTs.…”

Section: Introductionmentioning

confidence: 99%

Overview of Radiological Studies on Visualization of Gubernaculum Tracts of Permanent Teeth

Oda

Nishida

Habu

et al. 2021

JCM

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The eruption pathway from the dental follicle to the gingiva for permanent teeth is known as the gubernaculum tract (GT), a physiologic structure thought to play a role in tooth eruption. Cone beam computed tomography and multi-detector computed tomography have recently been used to visualize the GT, with the results indicating that this structure might be related to the normal eruption of teeth. By contrast, curved and/or constricted GTs may lead to abnormal tooth eruption. In addition, complex odontomas have been reported from within the GT or dental sac of unerupted permanent teeth. If an odontoma occurs within the GT, the tooth will not erupt normally. Moreover, the imaging characteristics of the GT from the top of the odontogenic mass to the alveolar crest are extremely useful for making a differential pathological diagnosis and for differentiating between odontogenic and non-odontogenic masses. Therefore, radiological studies on the GT have been attracting increasing attention. Given this background, the present review aims to clarify the imaging characteristics and review recent studies on the GT considering the importance of the research.

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Imaging characteristics of Gubernacular Tract on CBCT- A pictorial review

Cited by 15 publications

References 11 publications

Retrospective Evaluation of the Gubernacular Tract in Impacted/Unerupted Teeth with Cone-Beam Computed Tomography

Retrospective Evaluation of the Gubernacular Tract in Impacted/Unerupted Teeth with Cone-Beam Computed Tomography

Role of Cell Death in Cellular Processes During Odontogenesis

Overview of Radiological Studies on Visualization of Gubernaculum Tracts of Permanent Teeth

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