CBCT Radiographs Research Articles

The short-term postoperative pain and impact upon quality of life of pulpotomy and root canal treatment, in teeth with symptoms of irreversible pulpitis: A randomized controlled clinical trial.

Few studies focus upon patient-reported outcomes in endodontics. To determine whether full pulpotomy offers a less painful, improved health-related quality of life (HRQoL) compared with root canal treatment (RCT) in cases of irreversible pulpitis (IP) in the 7 days after the treatment. One hundred sixty-eight participants presenting with symptoms of IP were randomized to either pulpotomy (n = 86) or RCT (n = 82). Two participants were excluded, 61 participants underwent full pulpotomy with Biodentine (35.7%), 80 had RCT (46.8%), and 25 were randomized to have pulpotomy which progressed to RCT (PRCT) due to uncontrollable bleeding (14.6%). Clinical and radiographic assessments, using CBCT and periapical radiographs, were carried out preoperatively, for the evaluation of the results only CBCT images were used. Pain (VAS) and HRQoL (EQ 5D) assessments were carried out at baseline and Days 1, 3, 5 and 7 post-baseline. Analysis included descriptive and continuous variables, chi-squared, Fisher's exact, and two-sample t-tests. In pulpotomy and RCT groups, VAS pain decreased significantly over the first week (p < .001). The magnitude of reduction was similar in RCT and pulpotomy (p = .804), RCT and PRCT (p = .179), pulpotomy vs. PRCT (p = .144) and in the comparison of combined RCT /PRCT groups (ORCT) with Pulpotomy (0.729). However, the overall level of VAS pain was significantly higher in the PRCT group than in the Pulpotomy (p = .045) and RCT group (p = .049). Using CBCT, significantly more radiolucencies were found in the PRCT group than in the pulpotomy group and overall teeth presenting with CBCT radiolucencies had significantly higher pain scores (p = .015), particularly at Days 1, 3 and 5. There were significant differences in many OHRQoL domains (Questions 1, 6, 11 and 12) between RCT and PRCT groups with higher frequencies of the impact of oral health problems at Day 0 and Day 7 in the PRCT group. In the treatment of IP, pulpotomy is as effective as RCT in reducing post-operative pain, and improving QoL and HRQoL, teeth displaying uncontrollable bleeding and periapical radiolucencies detected using CBCT are associated with more intense postoperative pain and lower QoL.

Software-supported periodontal diagnostics with 3D CBCT compared with conventional 2D panoramic imaging and clinical diagnostics: a prospective study.

The objective of the present study was the software-supported evaluation of the measurement accuracy between CBCT and panoramic radiographs in the assessment of the periodontal bone level in patients with periodontitis, and the comparison of this with clinical periodontal parameters. Twenty patients with severe periodontitis (stage III to IV) were evaluated clinically and radiographically (panoramic radiographs and CBCT). Diagnostic interpretation comprised three blinded investigators with different levels of experience. Specific software-basing measurement procedure evaluated radiologic distances for the mesial, central, and distal bone levels on the oral and vestibular sides of the teeth investigated and furcation upper and lower boundary. Jaw localization, anatomical region of interest, the number of roots, and the experience of the observers were evaluated. All measurements were carried out twice by the same observers within a 6-week interval. Slightly higher measurement deviations (SD) in the range of 0.47 (0.40) mm were found for CBCT evaluation compared with panoramic imaging. Pearson correlation analysis showed statistically strong positive correlation for the mesial and distal aspects, and moderate positive correlation was found for the investigated furcations between both radiographic modalities. Compared with the clinical reference, the mean total error of measurement (SD) was larger for panoramic imaging (0.66 [0.48] mm) than for CBCT (0.27 [0.08] mm) for all three observers. Software-supported CBCT analysis delivers better diagnostic information about the bony periodontal conditions of the patient compared with 2D radiographs. However, it remains unclear if this additional information leads to better periodontal outcomes.

Case report: Detection of maxillary sinusitis with inverted impacted teeth using Cone-beam Computed Tomography

Objectives: The aim of this case report is to describe radiographically the specific features of maxillary sinusitis on CBCT radiograph. Case Report: A 20-year-old female patient came to RSGM UNPAD with a consul letter from Oral Surgery specialist for a CBCT radiography examination to see impacted teeth. The results showed radiointermediate images in the maxillary sinus which showed thickening of the sinus mucosa and an inverted impacted teeth on the right maxillary. Conclusion: Maxillary sinusitis could be assessed using extra oral radiography and CBCT. CBCT examination was used in determining the source of the lesion, the extent of the lesion, and the thickness of the maxillary sinus mucosa.

Enhancing the diagnosis of sublingual sialolith using CBCT: a case report

Objectives: This case report was created to provide further insight into the use of CBCT in detecting sialolith lesions. Case Report: A 27-year-old female patient was referred to the radiology department of Padjadjaran University Dental Hospital for CBCT radiograph examination related to complaints of swelling in the right lingual area of the mandible and pain. The results of the radiograph examination analysis showed irregular, well-defined radiopaque, in the lingual area of regio 44-45, measuring 34.31 mm2, and the lesion was not associated with the mandible. Intra-oral examination revealed irregular swelling and the same color as the lingual mucosa of regio 44-45. The analysis showed that the lesion was located in the salivary duct of the sublingual area and the patient was diagnosed with sublingual sialolithiasis dextra. Conclusion: CBCT analysis can be used to accurately identify the position, quantity, and morphology of sialoliths and interpret their three-dimensional positioning in relation to adjacent structures.

Clinical Use of a Mineral-Organic Resorbable Bone Adhesive: A First Human Case Report with a 3-Year Follow-up.

The ability for clinicians to adequately obtain primary stability in host bone is critical to the success of dental implants. Numerous conditions require dentists to perform multistage approaches to rebuild deficient bone volume prior to surgically placing implants. In many instances, implant placement cannot be achieved due to a lack of primary implant stability. Recently, a novel mineral-organic resorbable bone adhesive (MORBA) has demonstrated promising results in animal studies. MORBA is a synthetic, injectable, self-setting, load-bearing adhesive biomaterial that exhibits osteopromotive properties and bonds bone to bone and metal within 10 minutes and can fully resorb in 30 weeks. Its unique novel formulation was developed from biomimetic proteins found in marine animal creatures that possess distinct adhesive properties underwater. Excellent long-term results have shown its potential use for achieving primary stability in immediate implants. The present case report demonstrates the first use of MORBA in a human patient, utilized on a nonrestorable mandibular first molar. MORBA was utilized after placement of a mobile 5.8-mm implant to achieve stabilization. At 3 months postsurgery, both clinical and CBCT evaluations showed maintained implant stability. One year after implant placement, radiographic bone was seen on the buccal surface of the implant with continued long-term stabilization. This case report extends to 3 years whereby the use of MORBA, in an initially unstable situation, demonstrated an excellent long-term follow-up. MORBA provided immediate implant stability with resorbable characteristics, leading to successful long-term clinical outcomes up to 3 years. This innovative biomaterial offers a more efficient solution to a critical problem in implant dentistry, allowing optimal primary stability during immediate implant placement, thus reducing treatment times and costs.

A large radiolucent lesion with impacted teeth: was it an ameloblastoma or a dentigerous cyst? a case report

Objectives: This case report aims to describe a large radiolucent lesion associated with an impacted tooth from CBCT radiographs. Case Report: A 19-year-old woman was referred to have a CBCT examination in the dentomaxillofacial radiology unit in Dental Hospital Universitas Padjadjaran with swelling on the palatal side of the face and a lump on the gum at the upper right unerupted canine and premolar. The CBCT examination results showed impacted teeth 13 and 14 with a large radiolucent lesion with a well-defined and corticated border surrounding teeth 13 and 14, expanding into the maxillary sinus and nasal cavity. Oral hygiene was in good condition. The facial profile looked asymmetrical. Conclusion: Based on the CBCT result in terms of location and radiographic feature, this extensive radiolucent lesion led to a suspect radiodiagnosis of the ameloblastoma. Histology examinations are required to establish a definitive diagnosis. A cyst wall lined with odontogenic squamous epithelium was confirmed in the histology result examination.

Accuracy of formula-based volume and image segmentation-based volume in calculation of preoperative cystic jaw lesions’ volume

ObjectiveThe aim of this study was to assess the accuracy of formula-based volume measurements and the 3D volume analysis with different software packages in the calculation of preoperative cystic jaw lesions’ volume. The secondary aim was to assess the reliability and the accuracy of 3 imaging software programs for measuring the cystic jaw lesions' volume in CBCT images.Materials and methodsThis study consisted of two parts: an in vitro part using 2 dry human mandibles that were used to create simulated osteolytic lesions to assess the accuracy of the volumetric analysis and formula-based volume. As a gold standard, the volume of each bone defect was determined by taking an impression using rapid soft silicone (Vinylight) and then quantifying the volume of the replica. Afterward, each tooth socket was scanned using a high-resolution CBCT. A retrospective part using archived CBCT radiographs that were taken from the database of the outpatient clinic of the oral and maxillofacial radiology department, Faculty of Dentistry, Minia University to assess the reliability of the 3 software packages. The volumetric data set was exported for volume quantification using the 3 software packages (MIMICS-OnDemand and InVesalius software). Also, the three greatest orthogonal diameters of the lesions were calculated, and the volume was assessed using the ellipsoid formula. Dunn’s test was used for pair-wise comparisons when Friedman’s test was significant. The inter-examiner agreement was assessed using Cronbach’s alpha reliability coefficient and intra-class correlation coefficient.ResultsRegarding the results of the retrospective part, there was a statistically significant difference between volumetric measurements by equation and different software (P value < 0.001, Effect size = 0.513). The inter-observer reliability of the measurements of the cystic lesions using the different software packages was very good. The highest inter-examiner agreement for volume measurement was found with InVesalius (Cronbach’s alpha = 0.992). On the other hand, there was a statistically significant difference between dry mandible volumetric measurements and Gold Standard. All software showed statistically significantly lower dry mandible volumetric measurements than the gold standard.ConclusionComputer-aided assessment of cystic lesion volume using InVesalius, OnDemand, and MIMICS is a readily available, easy to use, non-invasive option. It confers an advantage over formula-based volume as it gives the exact morphology of the lesion so that potential problems can be detected before surgery. Volume analysis with InVesalius software was accurate in determining the volume of simulated periapical defects in a human cadaver mandible as compared to true volume. InVesalius software proved that open-source software can be robust yet user-friendly with the advantage of minimal cost to use.

Maxillary sinuses, multiple aspects to consider prior to bone grafting procedure: a retrospective study in a sample of a Palestinian population.

To analyze various anatomical aspects of the maxillary sinuses on CBCT volumes, mainly, the posterior superior alveolar artery (PSAA), and to compare its visibility on CBCT vs. panoramic radiographs. A retrospective radiographic analysis was conducted on 120 patients (240 maxillary sinuses) using their CBCT coronal views (CCV) and panoramic radiographs (CP). On CCV, the PSAA's maximum dimension (MD), vertical distance (PVD) to the alveolar crest, and bone plate thickness (T1 and T2) buccally and inferiorly to the PSAA, respectively, were analyzed. Additionally, on CCV, the ostium vertical distance (OVD) and location were recorded, and the height of the remaining bone height inferior to the maxillary sinuses (MVD) was also measured. The PSAA's visibility was evaluated and compared between CCV and CP. All these variables were studied at the apical region of the second maxillary premolar (P2), first molar (M1), and second molar (M2). Age, gender, and face side (right vs. left) factors affecting the sinus dimensions and visibility were investigated. Several statistical tests were used to analyze these variables. PSAA was detected in 96.53% of the records on CCV, where it was significantly superior to CP in the detection of the PSAA structure (p value 0.000) at all sites analyzed. The PSAA's MD, PVD, T1 and T2 thicknesses, and MVD were on average 1.19mm, 19.54mm, 0.69mm, 1.36mm, and 10.25, respectively. OVD average was 31.04mm where 42.9% of the ostia were within the mesiodistal extent of the second upper molar. No significant relation was found between different age groups, gender, and the visibility level of PSAA. Age, gender, and the side of the face investigated showed no discernible effects on the maxillary sinus's bone thickness, vertical dimensions, or PSAA diameter among the studied Palestinian sample. As CCV was superior to CP in the identification of PSSA, preoperative evaluation of PSSA using CBCT volumes is thus recommended.

A suspect of large dentigerous cyst associated with impacted canine evaluated by CBCT: a case report in a young patient

Objectives: This case report aims to describe a large radiolucent lesion associated with an impacted canine in a young patient from CBCT radiographs.&#x0D; Case Report: A 12-year-old boy was referred for CBCT examination to the Dentomaxillofacial Radiology unit at the Universitas Padjadjaran Dental Hospital with swelling on the right side of the face and a gingival lump on the upper right region suspected as an unerupted canine. The CBCT examination results showed an ectopic impacted tooth 13 and a large hypodense/radiolucent lesion with a well-defined and corticated border located on the coronal of tooth 13, expanding into the maxillary sinus and nasal cavity.&#x0D; Conclusion: Based on the CBCT result in terms of location and radiographic features, this extensive radiolucent lesion led to a suspect radiodiagnosis of the dentigerous cyst within a young patient. However, histology examination is still required to establish a definitive diagnosis.

Effect of Maxillary Sinus Anatomy on Bone Gain After Lateral Window Sinus Floor Elevation: A Case-Control Study

Purpose: To evaluate the effect of maxillary sinus anatomy on sinus floor elevation (SFE) operations performed with the lateral window approach. Materials and Methods: CBCT and digital panoramic radiographs were evaluated before and at least 6 months after maxillary sinus floor elevation (SFE) operations performed in 33 maxillary sinus regions in 26 patients. Maxillary sinus volume, grafted volume (GV), sinus width (SW), residual bone height (RBH), and vertical graft resorption (VGR) were calculated. The effects of RBH and SW on GV and VGR were evaluated statistically. Results: The mean GV values in the maxillary sinuses classified as narrow, average, and wide were 2.60 ± 0.57, 3.44 ± 0.65, and 3.70 ± 0.64 cm3, respectively. The mean VGR was 2.12 ± 1.67 mm, and in the sites classified as narrow, average, and wide, the mean VGR values were 1.50 ± 0.79, 1.58 ± 1.28, and 3.46 ± 2.06 mm, respectively. A statistically significant difference in GV and VGR was found between the SW groups. The mean posterior maxillary RBH was 2.30 ± 1.05 mm, and 17 and 16 sinuses were classified as ≤ 2 and > 2 mm, respectively. There was no statistically significant difference in the effect of RBH on GV or VGR. Conclusion: Although posterior maxillary RBH did not affect new bone formation in the sinuses grafted only with hydroxyapatite-derived inorganic bovine bone, with increasing SW, the GV decreased and the VGR increased.

Alternatif abutment dan retensi pada prostetik implan (Laporan Kasus)

Dental implant is one option that can be used to replace loss of one or more teeth with fixed restoration in restoring the function of mastication, esthetic, and phonetic in patients. An understanding of alternative abutment and retention in implant prosthetic is needed to complete the entire implant treatment. In the first case a 40-year-old female patient was rehabilitated with Nobel Replace Conical Connection TiUnite implant. Final prosthetic is hybrid screw-retained metal porcelain crown with esthetic abutment. The second case the 39-year-old female patient came to get implant treatment on 36 regio, had previously been implanted but failed. CBCT radiograph results the patient had installed three implants on the lower right and upper left side. The patient had no systemic disease. Type of implant is the same as the first case, but the prosthese used cement-retained metal porcelain crown with universal base abutment. The selection of abutment and retention in a good implant prosthetic is important and is a success factor in implant treatment.

&lt;strong&gt;Correlation between human chronological age and dentin volume of maxillary canine&lt;/strong&gt;

ABSTRACTIntroduction: One of the identification methods in forensic odontology is to estimate age through tooth characteristics. With age, odontoblast cells that line the pulp cavity will continue the process of secondary dentin deposition at a lower rate. Generally, maxillary canines are teeth that can survive in the oral cavity until old age and are less likely to wear out. This study aimed to determine the correlation between human chronological age and the dentin volume of the maxillary canines using CBCT radiographs. Methods: An analytic study of the Pearson correlation test was conducted on 114 samples of CBCT radiographs of the maxillary canines from the Radiology Unit of the Rumah Sakit Gigi dan Mulut, Faculty of Dentistry, Universitas Padjadjaran. The inclusion criteria for this study were canines with closed apex, no caries, no attrition, no restorations, no orthodontic treatment, and generally good health. Maxillary canine dentin volume was measured using the application ITK-SNAP version 3.8.0. The results of dentin volume were analyzed using the Pearson correlation test using SPSS IBM Statistics 25. Results: Pearson correlation analysis showed the correlation coefficient value (r= 0.270 and (r = 0.427) for the male and female samples, respectively. Conclusion: The correlation between chronological age and maxillary canine dentin volume in this study was not strong enough to be used as a single parameter in the age estimation method. Future research is expected to expand the sample size with a homogenous age distribution to obtain more consistent and accurate results.Keywords: age estimation; dentin volume; maxillary canines; ITK-SNAP; CBCT.

Dimensional changes of peri-implant tissue following immediate flapless implant placement and provisionalization with or without xenograft in the anterior maxilla: a study protocol for a randomized controlled trial

BackgroundDental implant therapy requires the preservation of peri-implant tissue in the cosmetic zone. Various surgical procedures have been presented, including ridge preservation, flapless method, and quick provisionalization. The goal of this research was to assess the buccal bone dimensional changes following immediate flapless implant implantation in the front maxilla, with or without xenografting.Method and designThirty patients who meet the inclusion criteria and have maxillary teeth (numbers 14 to 24) are candidates for the immediate implant with immediate provisionalization. Participants will be assigned randomly to one of two groups: (1) an immediate implant with xenograft and (2) an immediate implant without bone grafting. For 3 months, the temporary prosthesis will be installed shortly before the final restoration. Following temporary prosthesis insertion and 6 months after surgery, a CBCT radiograph will be used to examine bone tissue. Soft tissue will be assessed at three points: baseline, 3 months, and 6 months following implant therapy. Patients’ satisfaction, implant failure, prosthesis failure, and complications will be assessed as secondary outcomes after 6 months.DiscussionThe outcomes of this randomized clinical research will show if buccal bone augmentation with xenograft reduces vertical bone and gingiva recession. The findings and patient-reported outcomes will aid in the selection of therapy alternatives for implant treatment patients.Trial registrationIranian Registry of Clinical Trials IRCT20211119053106N1. Registered on 6 December 2021 and Open Science Framework (OSF) on May 20, 2022. Registration DOI https://doi.org/10.17605/OSF.IO/VUGFQ.

Evaluation of the effect of autologous conditioned serum on the radiographic characteristics of hard tissue after horizontal bone augmentation in implant dentistry.

Background. Bone deficiency in different areas is problematic in implant placement. Changes in histological, histomorphometric, and radiographic properties of hard tissues in the implant placement area affect many parameters of implant success. Autologous conditioned serum (ACS) is a blood product with high levels of IL1- receptor antagonists. Augmentation surgeries are required in many cases because implant placement in the edentulous areas requires a sufficient amount of bone. Therefore, this study radiographically evaluated the effect of autologous conditioned serum after horizontal bone augmentation. Methods. In this prospective RCT, 21 patients eligible patients were evaluated. The patient underwent horizontal ridge augmentation surgery in the area. The ACS-impregnated graft was in direct con-tact with the bone. The control side underwent the same surgical protocol without using ACS. Four months after surgery, a CBCT radiograph was taken, and radiographic changes in the two areas were calculated using the differences in the amount of bone formed in the horizontal dimension as well as the Hounsfield unit (HU). The data were reported using descriptive statistical methods, including means (standard deviations) and frequencies (percentages). According to the results of the Kolmog-orov-Smirnov test, the data had a normal distribution (P>0.05); therefore, paired t-test was used to compare the means of the parameters between the two groups. Results. IRadiographic examinations showed that the horizontal dimension of bone before surgery was similar between the two groups. However, after surgery in the ACS group (33.13±6.1), it was significantly higher than in the control group (62.1±86.4) (P>0.05). Also, the rate of horizontal dimension increase (the difference before and after surgery) in the ACS group was significantly higher than in the control group. Bone density before surgery was similar between the two groups. However, after surgery, there was a significant increase in the ACS group (75.56±330.42 HUs) compared to the control group (38.35±292.38 HUs) (P>0.05). Also, the rate of density increase (the difference before and after surgery) in the ACS group was significantly higher than in the control group. Conclusion. Radiographic evaluations of hard tissues showed a significant increase in the horizontal dimension of bone and density of newly formed bone using ACS compared to the control group.

Comparative Evaluation Of Clinical And Radiographic Horizontal Condylar Guidance Angle Values By Using Two Different Interocclusal Recording Materials In Dentulous Patients

Introduction: The success of prosthodontic procedures can be accurately determined by the exact replication of the patient’s condylar path using a semi-adjustable articulator. It allows the clinician to determine the morphology of the occlusal surfaces in relation to the condylar pathway during mandibular movements. If condylar guidance is not exactly registered, it might result in occlusal interferences during movements of the mandible and lengthen chairside adjustment time, which is inconvenient for the patient and dentist.Materials and methods: A total of 20 dentulous patients from 20 to 30 years of age group attending the department of prosthodontics at Sibar institute of dental sciences were selected for the study. Alu wax and jet bite were used to obtain the protrusive interocclusal record (PIR). Protrusive records were then used to program the semi-adjustable articulator to obtain HCGA values on both sides. Using the same protrusive records CBCT radiograph was taken. Radiographic images were traced on tracing paper and HCGA values were measured using Frankfort’s horizontal reference line (the line connecting porion and orbitale) and the mean curvature line (most-superior and most-inferior points of the curvatures) on both sides using a protractor. The data were analyzed by paired sample t-tests and Pearson’s correlation tests.Results: There was no significant difference between the right and left sides in the clinical and radiographic methods using Alu wax PIR. In the clinical method utilizing jet bite PIR, the right side had significantly higher HCGA values than on the left side. On CBCT, no such differences were found.Conclusion: CBCT horizontal condylar guidance angle values were higher than those obtained using the clinical method by using both records. Values obtained from both the methods, i.e., protrusive interocclusal record and cone-beam computed tomography, were compared and correlated.

Comparison of Eruption Level of Third Maxillary Molars in Cone Beam Computed Tomography and Panoramic Images in Patients Referred to the School of Dentistry of Tabriz University of Medical Sciences in 2017-2020

Introduction: Surgical extraction of third maxillary molar can have serious complications. By identifying the factors influencing the success of maxillary third molars surgery, accidents during surgery as well as postoperative complications can be prevented. Considering that knowledge of eruption level type of maxillary third molars is one of the most important factors in the success of tooth extraction surgery. The aim of this study is to examine and compare the type of eruption level in CBCT () cone beam computed tomography and Panoramic radiographs in the population of patients referred to the Department of Oral and Maxillofacial Radiology, Tabriz School of Dentistry. Materials and Method: This study is a descriptive-analytical cross-sectional study on 395 patients who referred to Tabriz School of Dentistry between 2017 and 2020 and had both CBCT images and panoramic radiographs records. The eruption levels of the maxillary third molars relative to the occlusal plane of the adjacent molars in CBCT and panoramic radiographs were examined and compared by a radiologist based on the Pell &amp; Gregory system. Descriptive statistics and chi-square test were used to report and analyze the data. Results: In this study, on both sides of the maxilla, the most common eruption levels of the third molars in both panoramic and CBCT images were: level A, level B, and level C, respectively. Levels B and C on the left were more common, while on CBCT images levels A and B on the right and surface C on the left were more common. Also, comparison of Eruption Level A, B, C in CBCT and panoramic images showed that the eruption level of the third molar on both sides of the maxilla were significantly different (P &lt;0.05). Conclusion: It is recommended that CBCT images replace panoramic radiographs or be used in conjunction with panoramic radiographs as a reassuring method.

Assessment of the position and level of mental nerve for placement of implants using cone-beam computed tomography & panoramic radiograph in the Saudi population

Background and objectiveIn surgical dentistry, shape, location, position, and extent of the anterior loop of mental foramen plays a deliberately imperative landmark during an osteotomy procedure. To evade any neurological disturbance during implant surgery radiological assessment is compulsory. Therefore, the aim of the study was to assess the position and level of mental nerve for placement of implants using Cone-beam computed tomography & Panoramic radiography in the Saudi population. Materials and methodsA total of 150 CBCT and Panoramic radiographs were taken from the patients who visited the Department of Oral Medicine and Radiology. The data collection was done by using the same radiographic pieces of equipment for both CBCT and Panoramic radiographs. CBCT images taken from Kodak 9000 3D, Carestream Health, Inc., New York, USA, and Panoramic Radiographs taken from Panoramic Planmeca ProMax, Helsinki, Finland (Vujanovic-Eskenazi et al., 2015). The Chi-square test student test was used for statistical analysis. ResultsThe most frequent shape and location of mental foramen in both CBCT and Panoramic radiographs were oval and in between the first and second premolar, both in CBCT & PR views. The visibility of mental loop on CBCT & PR view showed that; visibility of mental loop in CBCT was higher with 42(56%) as compared with PR view 26(34.66%) with statistically significant p-value 0.014. The mean length of the mental loop on CBCT was statistically significant (p = 0.001). But the mean distance from the lower point of the mental foramen to the lower border of the mandible was not statistically significant. ConclusionBased on the results of the present study; the visibility of the mental loop and its extension is more in CBCT as compared with PR views. Therefore, we recommended CBCT, during of implant surgery.

Gambaran Kista Dentigerous Gigi Premolar Rahang Atas pada Radiograf CBCT : Laporan Kasus

Background: Dentigerous cyst is a cyst that forms around the crown of an unerupted tooth. It begins when fluid accumulates in the layers of reduced enamel epithelium or between the epithelium and the crown of the unerupted tooth. Dentigerous cysts attach to the cementoenamel junction. Some dentigerous cysts are eccentric, developing from the lateral aspect of the follicle so that they occupy an area beside the crown instead of above the crown. In the case of dentigerous cysts with supernumerary, lesions appear to develop in the lateral aspect, so proper imaging is needed to see the expansion of the lesion. A modality that can be used to see the location and expansion of dentigerous cysts is by using a CBCT radiograph. Objective: Identification and interpretation of dentigerous cysts with supernumerary using CBCT radiography. Case Report: 12-year-old male came to the RSGM FKG Unpad bring a referral letter for CBCT photos. From the history it is known that the patient has a complaint of teeth that have not grown with swelling in the right maxilla. Case Management: Using CBCT, there were supernumerary and dentigerous cysts at 14,13. Sagittal, coronal and axial CBCT features show the position and condition of supernumerary, and give information about the location and expansion of dentigerous cyst at 14,13. Conclusion: CBCT provides a description of dentigerous cysts about location, lesion expansion, and involvement with surrounding tissue. CBCT provides an overview of lesions in sagittal, coronal and axial

RELATION BETWEEN SAGITTAL POSITION OF THE MANDIBLE AND PHARYNGEAL AIRWAY VOLUME IN ADULTS USING CONE BEAM COMPUTED TOMOGRAPHY

Introduction: Many authors have discussed the relationship between craniofacial morphology and pharyngeal airway spaces in different malocclusions and skeletal patterns. So the aim of this work was to study the relation between sagittal position of the mandible and pharyngeal airway volume in adults using CBCT. Materials And Methods:Twentyone CBCT radiographs were collected from the archive of Radiology Department at Suez Canal University and were divided into 3 groups according to the measured SNB angle. Group 1 normal mandibular position, group 2 retrognathic mandible and group 3 prognathic mandible. Dolphin 3D imaging software was used to measure the airway volume for all the radiographs. Nasopharyngeal, oropharyngeal, hypopharyngeal and total pharyngeal airway volumes were measured for all the radiographs. F-test (ANOVA) was used for comparison between groups and Tukey test for pairwise comparisons. Correlations between variables were tested using PearsonÂ’s correlation coefficient. Results: there was statistically significant difference in the mean total pharyngeal airway volume and oropharyngeal airway volumes between the three groups. Nasopharyngeal airway volume and hypopharyngeal airway volume had non-significant difference between groups. There was a significant positive correlation between total pharyngeal airway volume (mm3) and SNB angle. Conclusion: Pharyngeal airway volume differs with different sagittal positions of the mandible. Pharyngeal airway volume decreases with mandibular retrognathism and increases with mandibular prognathism.

A Systematic Review on the Association Between Clinical Symptoms and CBCT Findings in Symptomatic TMJ Degenerative Joint Disease

To evaluate the association between clinical signs/symptoms and bone changes on CBCT images in patients with degenerative joint disease (DJD) of the temporomandibular joint (TMJ). An electronic literature search of the MEDLINE, PubMed, EMBASE, Scopus, and Web of Science databases, as well as Google Scholar for gray literature, was conducted to identify relevant articles on February 26, 2021. Risk of bias was evaluated using the Joanna Briggs Institute critical appraisal tools. The GRADEpro (Recommendation, Assessment, Development, and Evaluation) system instrument was applied to assess the level of evidence across studies. Nine papers assessing clinical signs/symptoms and CBCT findings were included. TMJ pain (arthralgia) and TMJ noises carried the strongest associations with various CBCT findings, each of which were supported by four studies with significant associations. Only one study found significant associations between masticatory myalgia (muscle pain) and CBCT findings. Range of motion carried no significant associations with CBCT findings in the included studies. Based on the GRADEpro system, the certainty of evidence is low for said associations. The results suggest that TMD patients with TMJ arthralgia and joint noises may benefit from CBCT imaging. There would be less benefit in TMD patients exhibiting primarily myalgia or limited range of motion, and therefore these patients should not be prescribed routine CBCT radiographs unless indicated by other clinical findings. The heterogeneity of reporting in the included studies suggests that embracing universal clinical (DC/TMD) and radiographic diagnostic criteria for TMJ-DJD would benefit both research and clinical outcomes.