Significance of morphometric and anatomic variations of nasopalatine canal on cone-beam computed tomography in anterior functional zone - A retrospective study

Rai, Shalu; Misra, Deepankar; Misra, Akansha; Khatri, Mansi; Kidwai, Sahil Mustafa; Bisla, Suman; Jain, Prasoon

doi:10.4103/ams.ams_283_20

Cited by 8 publications

(12 citation statements)

References 21 publications

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“…Pareta, 2011). At the same time, this ratio is important in determining the stream production potential of basins and seeing the interaction of drainage conditions with other elements (Verstappen, 1983;Rai et al, 2021).…”

Section: Bifurcation Ratio (B R )mentioning

confidence: 99%

A practical trial example in flood susceptibility studies: Determination of flood susceptibility in Bozburun Peninsula (Marmaris/Türkiye) basins

ÖZKAN,

EGE,

POLAT

2024

Preprint

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This study, carried out in the Bozburun Peninsula (Marmaris-Türkiye), which constantly faces the reality of flood disasters, aimed to determine the torrent and flood susceptibility levels on the basis of sub-basins. For this purpose, some hydrological analyses frequently used in geomorphology and hydrology studies were used. An important part of these analyses consists of the calculation of some morphometric indices. The indices preferred and calculated in our study are; bifurcation ratio (Br), texture ratio (T), drainage density (Dd), basin shape ratio (Bs), relief ratio (Rr), roughness value (Rn), stream accumulation time (Tc), hypsometric integral (Hi) and harmonic slope averages (Hsl) of the first series of streams in each sub-basin. Arc GIS 10.5 package program was used to create and process morphometric indices. While determining the torrent and flood susceptibility of the basins in question, the ranking and scoring of each parametric value on a sub-basin basis was done using a colouring scale in the Microsoft Excel 2010 program. First, the sub-basins were ranked according to their flood generation potential, and then, as 10 sub-basins were selected, susceptibility scores from 1 to 10 were assigned. However, only detecting and scoring the parameters in question may not be sufficient in some cases. Because each parameter will not contribute equally to flood susceptibility. In addition, relying only on expert opinion may lead to a subjective evaluation. The main difference of this study stems from the search for ways to eliminate this problem. In order to overcome these limitations and subjective evaluations, the AHP method, which is a decision-making matrix, was used in the study. In this way, it is thought that a stronger and more objective ranking can be achieved in a quantitative sense. For this purpose, the weight percentage results obtained in AHP were added to the previous scoring as a multiplier. Ultimately, these rankings were reduced to five susceptibility categories -simplified- and mapped. As a result of the analysis, it was determined that the sub-basins in the peninsula, which have a significant population, have high/very high flood susceptibility. Historical floods and field works were used as references to check the results obtained, and it was seen that the results pointed to basins that constantly face floods. Only the selection of these parameters and the extent to which prioritization with AHP will benefit need to be controlled in different regions. However, despite all this, it is thought that this study will be able to provide practical benefit and guidance to relevant researchers and decision makers.

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Section: Bifurcation Ratio (B R )mentioning

confidence: 99%

A practical trial example in flood susceptibility studies: Determination of flood susceptibility in Bozburun Peninsula (Marmaris/Türkiye) basins

ÖZKAN,

EGE,

POLAT

2024

Preprint

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“…10 In particular, penetration of the miniscrew into the nasopalatine bundle may result in anchorage loss, palatal mucosa impingement, or palatal bone loss. 11 Although the anatomical conditions of the nasopalatine canal have already been studied, [12][13][14][15] a more detailed analysis of the anatomical structures of the anterior maxilla is required due to the increasing popularity of bone-anchored orthodontic appliances. The objective of the present study was to assess the morphology of the nasopalatine canal using cone beam computed tomography (CBCT) scans of patients from the University Dental Clinic in Krakow, Poland.…”

Section: Introductionmentioning

confidence: 99%

Morphological evaluation of the nasopalatine canal using cone beam computed tomography and its clinical implications for orthodontic miniscrew insertion

Gibas-Stanek,

Kościółek-Rudy,

Szumilas

et al. 2024

Dent. Med. Probl.

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Background. The morphology of the nasopalatine canal is crucial in the planning of prosthetic restorations in the anterior region of the maxilla, as well as in the placement of orthodontic mini-implants.Objectives. The aim of this study was to assess the morphology of the nasopalatine canal using cone beam computed tomography (CBCT) scans of patients from the University Dental Clinic in Krakow, Poland, to define the position of the canal in relation to common sites of palatal median microimplant placement, and to investigate potential correlations between the anatomy of the canal and age and gender of the patients. Material and methods.A total of 120 CBCT images were used to assess the anatomy of the nasopalatine canal in 3 planes of space. The bone thickness anterior to the nasopalatine canal and the distance between the distal margin of Stenson's foramen and the predicted midpalatal microimplant position were also measured.Results. The most frequently observed canal type in the coronal plane was the Y-shaped canal, which was present in 60.8% of patients. The nasopalatine canal was classified as cone-shaped in 31.7% of the scans, cylindrical in 28.3%, hourglass-shaped in 27.5%, and banana-shaped in 12.5%. The mean length of the nasopalatine canal was 11.58 mm. The mean width of the canal was 2.89 mm at the nasal fossa level, 1.94 mm in the middle, and 5.09 mm at the palatal level. The mean bone thickness anterior to the nasopalatine canal was 9.07 mm at the level of the nasal opening, 6.84 mm at the level of the oral opening, and 7.32 mm in the middle. The mean distance between the distal margin of Stenson's foramen and the predicted midpalatal microimplant position varied from 0 to 11.94 mm, with a mean of 2.49 mm. Conclusions.Given the variety of nasopalatine canal forms and dimensions, detailed analysis of CBCT scans is essential prior to the placement of implants and microimplants.

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“…The anterior segment of the maxilla is also one of the most common parts of the maxilla, which has a tendency towards trauma, bone or tooth loss, pathologies, and anterior implant placements. The above factors can affect the NPC [2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…The increase in length of the NPC can also pose risk for neurovascular injuries during implant placement. Nonetheless, maxillary atrophy post-extraction tends for NPC to enlarge up to 32%, occupying around 58% of maxillary alveolar bone width [3]. The nasopalatine canal is a vital structure to be evaluated in various surgical procedures planned in the premaxillary area, such as implant placement, evaluation and post-surgical assessment of pathologies involving the NPC (cyst, benign, and malignant lesions), and evaluation for pre-and post-bone augmentation [1][2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

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Assessment of the Nasopalatine Canal Length and Shape Using Cone-Beam Computed Tomography: A Retrospective Morphometric Study

Soman

2024

Diagnostics

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The anatomical position of the nasopalatine canal in the anterior maxilla makes it one of the most important vital structures in the region. Surgical and implant procedures in this area require local anesthesia to be administered. It is, therefore, important to morphologically assess the length and shape of the nasopalatine canal for performing surgical procedures with more accuracy in this area. Cone-Beam Computed tomography scans were scrutinized using inclusion criteria of age 18 years and above, absence of any pathological lesions/fracture/surgery in the nasopalatine area, absence of orthodontic treatment or maxillary jaw correction surgeries, and exclusion criteria including CBCT scans with artifacts or error s in the area of interest, anterior implants, absence of bone diseases, trauma, surgeries, and impactions in the area of interest. A total of 360 scans were analyzed for the length and shape of the nasopalatine canals. The results of the study showed that the mean nasopalatine canal length was 12.51 mm. The hourglass shape of the canal was most common and had the highest representation in both genders, with male 80.62% and female 87.01%. A statistically significant difference (p < 0.001) was noted in nasopalatine canal length between males and females. The study provides insight into the significant association of gender with the canal’s shape and length of the canal. The length of the canal does not influence with age. These parameters are helpful for surgical planning and interventions in the anterior maxillary region.

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Significance of morphometric and anatomic variations of nasopalatine canal on cone-beam computed tomography in anterior functional zone - A retrospective study

Cited by 8 publications

References 21 publications

A practical trial example in flood susceptibility studies: Determination of flood susceptibility in Bozburun Peninsula (Marmaris/Türkiye) basins

A practical trial example in flood susceptibility studies: Determination of flood susceptibility in Bozburun Peninsula (Marmaris/Türkiye) basins

Morphological evaluation of the nasopalatine canal using cone beam computed tomography and its clinical implications for orthodontic miniscrew insertion

Assessment of the Nasopalatine Canal Length and Shape Using Cone-Beam Computed Tomography: A Retrospective Morphometric Study

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