scholarly journals Evaluation of nasopalatine canal using cone beam computed tomography - A retrospective study

2019 ◽  
pp. 15-18
Author(s):  
K Saraswathi Gopal ◽  
Priyam Kapoor
Keyword(s):  
Computed Tomography ◽  
Retrospective Study ◽  
Cone Beam Computed Tomography ◽  
Hard Palate ◽  
Alveolar Bone ◽  
Average Length ◽  
Cone Beam ◽  
Nasopalatine Canal ◽  
Incisive Foramen ◽  
Edentulous Patients

Background: Implantology is a very significant branch of dentistry that deals with the rehabilitation of edentulous patients. Thus, knowledge of anatomical variations of related neurovascular structures such as the nasopalatine canal is essential. Aim:The aim of study was to determine the form, length, and diameter of the nasopalatine canal using CBCT. Materials and Methods: In this retrospective study, images were archived from CBCT unit and visualized using Romexis software. The nasopalatine canals of 50 patients between the age range of 18-59years were analyzed. The shape of the nasopalatine canal, length of the nasopalatine canal and the diameter of incisive foramen were assessed in sagittal and coronal section. The width of labial and palatal alveolar bone around the canal and inclination of the nasopalatine canal to hard palate were evaluated. Statistics: (1) if there is any relation between the gender and the assessed parameters (2) if there is any relation between edentulous and partially edentulous patients with the assessed parameters. Results: The most common shape of the nasopalatine canal was cylindrical. The average length of the nasopalatine canal was 12.14±2.41 mm and the average diameter of incisive foramen 3.45±0.84 mm anteroposteriorly and 3.77±0.94mm mediolaterally. The average inclination of the nasopalatine canal to hard palate was 119.93±9.73° Conclusion: This study highlights the variations seen in the nasopalatine canal. The close vicinity of nasopalatine canal and implant can lead to sensory disturbances and damage of the tissues. Thus, a thorough knowledge before the surgical - implant procedure using cone beam computed tomography seems beneficial.

scholarly journals Relationship of central incisor implant placement to the ridge configuration anterior to the nasopalatine canal in dentate and partially edentulous individuals: a comparative study

PeerJ ◽  
2015 ◽  
Vol 3 ◽  
pp. e1315 ◽  
Author(s):  
Xueting Jia ◽  
Wenjie Hu ◽  
Huanxin Meng
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Central Incisor ◽  
Nasopalatine Canal ◽  
Implant Placement ◽  
Bone Width ◽  
Incisive Foramen ◽  
Edentulous Patients ◽  
Bone Height

Background.The aims of this study were to investigate the ridge contour anterior to the nasopalatine canal, and the difference between the incidences of the nasopalatine canal perforation in dentate and partially edentulous patients by cone-beam computed tomography.Methods.Cone-beam computed tomography scan images from 72 patients were selected from database and divided into dentate and partially edentulous groups. The configuration of the ridge anterior to the canal including palatal concavity depth, palatal concavity height, palatal concavity angle, bone height coronal to the incisive foramen, and bone width anterior to the canal was measured. A virtual implant placement procedure was used, and the incidences of perforation were evaluated after implant placement in the cingulum position with the long axis along with the designed crown.Results.Comparing with variable values from dentate patients, the palatal concavity depth and angle were greater by 0.9 mm and 4°, and bone height was shorter by 1.1 mm in partially edentulous patients, respectively. Bone width in edentulous patients was narrower than in dentate patients by 1.2 mm at incisive foramen level and 0.9 mm at 8 mm subcrestal level, respectively. After 72 virtual cylindrical implants (4.1 × 12 mm) were placed, a total of 12 sites (16.7%) showed a perforation and three-fourths occurred in partially edentulous patients. After replacing with 72 tapered implants (4.3 × 13 mm), only 6 implants (8.3%) broke into the canal in the partially edentulous patient group.Conclusions.The nasopalatine canal may get close to the implant site and the bone width anterior to the canal decreases after the central incisor extraction. The incidence of nasopalatine canal perforation may occur more commonly during delayed implant placement in central incisor missing patients.

scholarly journals Morphological Characteristics of the Nasopalatine Canal and the Relationship with the Anterior Maxillary Bone—A Cone Beam Computed Tomography Study

Diagnostics ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 915
Author(s):  
Pavle Milanovic ◽  
Dragica Selakovic ◽  
Milica Vasiljevic ◽  
Nemanja U. Jovicic ◽  
Dragan Milovanović ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Morphological Characteristics ◽  
Cone Beam ◽  
Morphometric Characteristics ◽  
Anterior Maxilla ◽  
Nasopalatine Canal ◽  
Implant Placement ◽  
Significant Difference ◽  
Incisive Foramen

The aim of this study was to evaluate the interconnection between the type of nasopalatine canal (NPC) and morphometric characteristics of the anterior maxilla. The investigation involved 113 subjects, and the morphometric parameters were obtained using cone beam computed tomography (CBCT). NPC shapes were classified into four types: banana-, hourglass-, cylindrical-, and funnel-shaped (distribution of approximately 9, 25, 31, and 35%, respectively). The analysis revealed that the NPC shape was significantly connected with the morphometric properties of anterior maxilla horizontal dimensions. In general, a banana-shaped NPC was accompanied with an overall reduction in anterior maxilla diameters when compared to other NPC shapes, with no significant difference between the other three NPC shapes. Furthermore, the morphometric characteristics that depend on NPC shape at the sagittal cross-section were significantly correlated with diameters of the incisive foramen, nasal foramen, and NPC length. According to the results of our study, it seems that the presented analyses of morphometric data may allow useful insight into the algorithms of various interconnections between the measures obtained in the region of the anterior maxilla, which could be of interest for a time rationale approach when planning some surgical procedures, such as immediate dental implant placement planning.

scholarly journals Three-dimensional Assessment of the Nasopalatine Canal and the Surrounding Bone Using Cone-beam Computed Tomography

2018 ◽  
Vol 8 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Fateme Salemi ◽  
Fazele Atarbashi Moghadam ◽  
Zahra Shakibai ◽  
Maryam Farhadian
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Anterior Maxilla ◽  
Nasopalatine Canal ◽  
Size And Shape ◽  
Anterior Nasal Spine ◽  
Incisive Foramen ◽  
School Of Dentistry ◽  
Labial Surface

Background and aims. Because of increasing concerns about surgeries in the anterior maxilla, including implant placement, it is necessary to examine the morphology of the nasopalatine canal and its surrounding bones. This study aimed to analyze the shape and position of the nasopalatine canal and incisive foramen using cone-beam computed tomography (CBCT). Materials and methods. CBCT images of 110 patients referred to Hamadan School of Dentistry were examined. The size and shape of the nasopalatine canal and incisive foramen, the distance between the incisive foramen and the anterior nasal spine, and the distance between the anterior border of the nasopalatine canal and the labial surface of the buccal plate were recorded. Results. The nasopalatine canal length decreased and its diameter increased with aging. The canal was found to be longer and wider in men. Patients without incisors had longer and thicker nasopalatine canals. The distance from the nasopalatine canal to the labial surface of the buccal plate was not gender-related but decreased with age. The distance to the labial cortical surface decreased significantly with loss of incisors. Conclusion. Given the diversities in the size and shape of nasopalatine canals, it is highly important to perform CBCT to prevent neurovascular damage.

scholarly journals CBCT evaluation of morphological characteristics of Nasopalatine canal and its related structure- A hospital based retrospective study.

2019 ◽  
pp. 14-19
Author(s):  
Sadakashram Jayachandran ◽  
Sangeetha Ramamoorthy
Keyword(s):  
Computed Tomography ◽  
Retrospective Study ◽  
Cone Beam Computed Tomography ◽  
Statistical Significance ◽  
Morphological Characteristics ◽  
Cone Beam ◽  
Central Incisor ◽  
Maxillary Central Incisor ◽  
Nasopalatine Canal ◽  
Significant Difference

Brief Background : To evaluate morphologic characteristics of Nasopalatine canal (NPC) and its relative position to Maxillary central incisor root using Cone Beam Computed Tomography. Materials and Methods: A retrospective study including 282 CBCT images divided into 5 groups: Group 1) 10 – 20 years, Group 2)21 – 30 years, Group 3)31 – 40years, Group 4)41 – 50 years, Group 5) above 51 years. The length and width of the canal were measured in sagittal section. Mesio-distal width of the canal and the distance between the Nasopalatine canal and maxillary central incisor roots at mid root (MR) and apex levels were measured in axial section. Statistical analysis was done using IBM SPSS version 21.0.Mean and standard deviation were assessed for all measurements. The significance level for all the tests was set at P < 0.05. Results: The NPC length, incisive foramen width (IF) and the position of NPC to maxillary central incisor roots at midroot and apex levels showed significant difference among age groups. Gender influences NPC length, IF width, and distance of NPC to midroot of right maxillary central incisor with high statistical significance and influences Stenson’s foramen width to a certain extent (but not statistically significant). Summary and Conclusions: The NPC canal morphology showed significant variations and it is always necessary to evaluate NPC before any surgical interventions especially assessment of implant site to prevent any complications. Key Words: Maxillary central incisor, Cone Beam Computed Tomography, Tooth apex

scholarly journals Variations in vertical mucosal thickness at edentulous ridge according to site and gender measured by cone-beam computed tomography

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Motohiro Munakata ◽  
Koudai Nagata ◽  
Minoru Sanda ◽  
Ryota Kawamata ◽  
Daisuke Sato ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Treatment Plan ◽  
Cone Beam ◽  
Alveolar Ridge ◽  
Marginal Bone Loss ◽  
Mandibular Molar ◽  
Mucosal Thickness ◽  
And Gender ◽  
Edentulous Patients

Abstract Background The vertical thickness of the peri-implant mucosa is associated with the amount of post treatment marginal bone loss. However, the variations in mucosal thickness at the different edentulous sites have been sparsely documented. The purpose of the study was to conduct a survey of the frequency distribution of variations in mucosal thickness at the different sites of the edentulous alveolar ridge and to compare them according to gender. Our study included 125 partially edentulous patients having a total of 296 implant sites. Cone-beam computed tomography (CBCT) scans were obtained by placing a diagnostic template with a radiopaque crown indicator on the ridge to determine the mucosal thickness at the crest of the alveolar ridge. Results The mucosal thickness was 3.0±1.3 mm in the maxilla, which was significantly greater than the mucosal thickness of 2.0±1.0 mm in the mandible (p<0.001). In both the maxilla and the mandible, the mucosa was the thickest in the anterior region, followed by the premolar and molar regions. Sites were further classified into two groups based on whether the mucosal thickness was greater than 2 mm. In the mandible, more than half of the sites showed a mucosal thickness of 2 mm or less. Conclusions Although this study was a limited preoperative study, the vertical mucosal thickness at the edentulous ridge differed between the maxillary and mandibular regions. The majority of sites in the mandibular molar region had a mucosal thickness of less than 2 mm. Practitioners might be able to develop an optimal dental implant treatment plan for long-term biologic and esthetic stability by considering these factors.

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