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Musa M, Awad R, Izeldin S, Zhao Y, Wu H, Wang L, Al-Hadad SA, Saif BS, Ahmed MMS, Chen X. Quantitative and qualitative condylar changes following stabilization splint therapy in patients with temporomandibular joint disorders with and without skeletal lateral mandibular asymmetry: a cone beam computed tomographic study. BMC Oral Health 2024; 24:363. [PMID: 38515064 PMCID: PMC10956259 DOI: 10.1186/s12903-024-04119-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 03/07/2024] [Indexed: 03/23/2024] Open
Abstract
BACKGROUND Temporomandibular disorders (TMDs) encompass pain and dysfunction in the jaw, muscles, and adjacent structures. This study aimed to explore the quantitative (condylar position, morphology) and qualitative (bone mineral density (BMD)) therapeutic outcomes following a stabilization splint (S.S.) therapy in adult patients diagnosed with TMD (Arthralgia) with/without lateral mandibular asymmetry (MA) using cone beam computed tomography (CBCT). METHODS In this retrospective clinical study, 60 adult TMD patients who received S.S. therapy were enrolled and allocated into the TMD group (TMDG) and TMD with MA group (TMD + MAG). The diagnosis was made according to the Diagnostic Criteria for TMD (DC/TMD) AXIS I. MA was measured from the mid-sagittal plane to the Menton point. CBCT was used to scan the temporomandibular joints pre- (T0) and post- (T1)-treatment for three-dimensional analysis. Intra- and intergroup statistical comparisons were performed using the Wilcoxon signed ranks and the Kruskal‒Wallis test. RESULTS For quantitative comparisons, there was a statistically significant difference between T0 and T1 in the joint spaces of TMD + MAG (anterior, superior, posterior, and coronal lateral on the deviated side as well as in the superior, coronal medial joint space of the contralateral side). Morphologically, the deviated side had a narrower condylar width, reduced condylar height, and a steeper eminence angle. In contrast, the contralateral side tended to have a greater condylar length. For qualitative measurements, BMD also showed statistical significance between T0 and T1 in the majority of the condyle slopes (AS, SS, PS, and LS on the deviated side and in AS and MS on the contralateral side) of TMD + MAG. Additionally, only the AS and PS showed significance in TMDG. CONCLUSION Multiple joint space widening (AJS and CMS) and narrowing (SJS, PJS, and CLS) could characterize the deviated side in TMD + MA. Factors like narrower condylar width, reduced condylar height, and steeper eminence angle on the deviated side can worsen TMD + MA. Proper alignment of the condyle-disc position is essential for optimal function and load distribution, potentially affecting bone mineral density (BMD). MA plays a prominent role in disturbing bone densities. S.S. therapy shows more evident outcomes in TMD + MAG (on the deviated side compared to the contralateral side) than the TMDG.
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Affiliation(s)
- Mazen Musa
- Department of Stomatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, People's Republic of China
- Department of Orthodontics, Al Tegana Dental Teaching Hospital, Faculty of Dentistry, University of Science and Technology Omdurman, Khartoum, Sudan
| | - Riham Awad
- Department of Pediatrics Dentistry, College of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China
- Department of Pediatrics Dentistry, Faculty of Dentistry, International University of Africa, Khartoum, Sudan
| | - Salma Izeldin
- Department of Stomatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, People's Republic of China
- Department of Orthodontics, Faculty of Dentistry, Karary University, Omdurman, Khartoum, Sudan
| | - Yunshan Zhao
- Department of Stomatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, People's Republic of China
| | - Hao Wu
- Department of Stomatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, People's Republic of China
| | - Lu Wang
- Department of Stomatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, People's Republic of China
| | - Saba Ahmed Al-Hadad
- Department of Stomatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, People's Republic of China
- Department of Orthodontics and Dentofacial Orthopedics, Faculty of Dentistry, Ibb University, Ibb, Republic of Yemen
| | - Bdr Sultan Saif
- Department of Stomatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, People's Republic of China
| | - Madiha Mohammed Saleh Ahmed
- Department of Stomatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, People's Republic of China
- Department of Orthodontics, Faculty of Dentistry, Aden University, Aden, Republic of Yemen
| | - Xi Chen
- Department of Stomatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, People's Republic of China.
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Mao F, Wang M, Zhou S, Zhao Y, Huang J, Yin F, Yang H, Ding PH. Clinical relevance of distolingual roots and periodontal status in mandibular first molars: a cross-sectional study employing CBCT analysis. J Zhejiang Univ Sci B 2024; 25:244-253. [PMID: 38453638 PMCID: PMC10918409 DOI: 10.1631/jzus.b2300586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 12/11/2023] [Indexed: 03/09/2024]
Abstract
OBJECTIVES: Distolingual root of the permanent mandibular first molar (PMFM-DLR) has been frequently reported, which may complicate the treatment of periodontitis. This study aimed to assess the morphological features of PMFM-DLR and investigate the correlation between the morphological features of PMFM-DLR and periodontal status in patients with Eastern Chinese ethnic background. MATERIALS AND METHODS: A total of 836 cone beam computed tomography (CBCT) images with 1497 mandibular first molars were analyzed to observe the prevalence of PMFM-DLR at the patients and tooth levels in Eastern China. Among them, complete periodontal charts were available for 69 Chinese patients with 103 teeth. Correlation and regression analyses were used to evaluate the correlation between the morphological features of DLR, bone loss, and periodontal clinical parameters, including clinical attachment loss (CAL), probing pocket depth (PPD), gingival recession (GR), and furcation involvement (FI). RESULTS: The patient-level prevalence and tooth-level prevalence of DLR in mandibular first molars were 29.4% and 26.3%, respectively. Multiple linear regression analysis suggested that bone loss at the lingual site and CAL were negatively affected by the angle of separation between distolingual and mesial roots in the transverse section, while they were significantly influenced by age and the angle of separation between distobuccal and mesial roots in the coronal section. CONCLUSIONS: The prevalence of PMFM-DLR in Eastern China was relatively high in our cohort. The morphological features of DLR were correlated with the periodontal status of mandibular first molars. This study provides critical information on the morphological features of DLR for improved diagnosis and treatment options of mandibular molars with DLR.
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Affiliation(s)
- Feifei Mao
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310016, China
| | - Meng Wang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310016, China
| | - Shuai Zhou
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310016, China
| | - Yan Zhao
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310016, China
| | - Jiaping Huang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310016, China
| | - Fengying Yin
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310016, China
| | - Haiping Yang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310016, China
| | - Pei-Hui Ding
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310016, China.
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Tidke P, Gupta N, Patil D, Ghadage M, Sinha A, Dalave P, Makkad RS. Periapical Cemento-Osseous Dysplasia: A Journey from Diagnostic Dilemma to Accurate Diagnosis with Use of 3D Imaging. J Pharm Bioallied Sci 2024; 16:S951-S954. [PMID: 38595463 PMCID: PMC11000969 DOI: 10.4103/jpbs.jpbs_465_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 08/06/2023] [Accepted: 08/10/2023] [Indexed: 04/11/2024] Open
Abstract
Cemento-osseous dysplasia is a subgroup of fibro-osseous dysplasia commonly invading the tooth-bearing regions of the mandible quite often. These bony pathologies are asymptomatic and are seen on radiographs as an incidental finding. Accurate diagnosis of periapical cemento-osseous dysplasia is very crucial as it will help in the proper management of the patient as the incorrect diagnosis can lead to the unnecessary endodontic treatment of the concerned teeth as it may be misdiagnosed as a periapical pathology. We describe a case of periapical cemento-osseous dysplasia in which a 52-year-old woman had been experiencing discomfort in the right mental area of her mandible for the previous 6 months and had finally sought help at the outpatient department. This case study aims to highlight the significance of making an accurate diagnosis of cemento-osseous dysplasias in the tooth-bearing area.
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Affiliation(s)
- Priyanka Tidke
- Department of Oral Medicine and Radiology, MGM Dental College and Hospital, Navi Mumbai, Maharashtra, India
| | - Neha Gupta
- Department of Oral Pathology, Microbiology and Forensic Odontology, Dental Institute, Rajendra Institute of Medical Sciences (RIMS), Ranchi, Jharkhand, India
| | - Dipooja Patil
- Department of Conservative Dentistry and Endodontics, Bharati Vidyapeeth (Deemed to be University) Dental College and Hospital, Navi Mumbai, Maharashtra, India
| | - Mahesh Ghadage
- Department of Prosthodontics and Crown and Bridge, Bharati Vidyapeeth (Deemed to be University) Dental College and Hospital, Navi Mumbai, Maharashtra, India
| | - Anamika Sinha
- Department of Conservative Dentistry and Endodontics, Bharati Vidyapeeth (Deemed to be University) Dental College and Hospital, Navi Mumbai, Maharashtra, India
| | - Pranita Dalave
- Department of Periodontology and Implantology, Bharati Vidyapeeth (Deemed to be University) Dental College and Hospital, Navi Mumbai, Maharashtra, India
| | - Ramanpal S. Makkad
- Department of Oral Medicine and Radiology, New Horizon Dental College and Research Institute, Sakri, Bilaspur, Chhattisgarh, India
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Rouientan A, Khodaparast MB, Safi Y. Evaluation of diagnostic accuracy of cone beam computed tomography and multi-detector computed tomography for detection of anatomical variations in rhinoplasty. Head Face Med 2024; 20:1. [PMID: 38172987 PMCID: PMC10763271 DOI: 10.1186/s13005-023-00401-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 12/07/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND Different imaging techniques, such as multi-detector computed tomography (MDCT) scan and cone beam computed tomography(CBCT), are used to check the structure of the nose before rhinoplasty. This study aimed to evaluate the accuracy of two imaging techniques, MDCT scan, and CBCT, in diagnosing structural Variations in rhinoplasty for the first time. METHODS This diagnostic accuracy study was conducted on 64 rhinoplasty candidates who complained of snoring and sleep apnea or had a positive result in the examination with Cottle's maneuver or modified Cottle technique between February 2021 and October 2022 at 15- Khordad Hospital affiliated to Beheshti University of Medical Sciences. Before rhinoplasty, patients were randomly assigned to one of the CT and CBCT techniques with an equal ratio. Scans were assessed for the presence of Nasal septum deviation (NSD), Mucocele, Concha bullosa, and nasal septal spur by two independent radiologists. The findings of the two methods were evaluated with the results during rhinoplasty as the gold standard. RESULTS NSD was the most common anatomical variation based on both imaging techniques. The accuracy of CBCT for diagnosing Nasal Septum Deviation and Mucocele was 80% and 75%, respectively. The sensitivity, specificity, and accuracy of CBCT in detecting Concha bullosa were 81.3% and 83.3%, respectively. The Kappa coefficient between CBCT and intraoperative findings for diagnosing NSD and Concha Bullosa was 0.76 and 0.73, respectively (p < 0.05). CONCLUSION CBCT can be considered a suitable method with high accuracy and quality to evaluate the anatomical variations before rhinoplasty.
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Affiliation(s)
- Abdolreza Rouientan
- Department of Plastic Surgery, 15 Khordad Educational Hospital, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Bashir Khodaparast
- Department of Plastic Surgery, 15 Khordad Educational Hospital, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Yaser Safi
- Department of Oral and Maxillofacial Radiology, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Hu X, Sujanamulk B, Lakshmi CR, Li C. Age and Gender-related Morphometric Assessment and Degenerative Changes of Temporomandibular Joint in Symptomatic Subjects and Controls using Cone Beam Computed Tomography (CBCT): A Comparative Analysis. Curr Med Imaging 2024; 20:1-12. [PMID: 38389339 DOI: 10.2174/0115734056248617231002110417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 07/19/2023] [Accepted: 08/11/2023] [Indexed: 02/24/2024]
Abstract
BACKGROUND The temporomandibular joint diseases have been associated with various predisposing factors. Joint spaces, articular eminence height and inclination, and the shapes of the condylar and glenoid fossa have all been shown to vary in temporomandibular joint diseases (TMD) patients. Advanced imaging techniques like cone beam computed tomography (CBCT) have been employed to estimate these parameters. AIMS AND OBJECTIVES The aim of the current study was to investigate the condylar morphology, condylar and glenoid fossa shapes, and assessment of joint spaces, such as anterior, posterior, superior, lateral, and medial spaces, through CBCT slices in coronal and sagittal planes and compare them between the control group and TMD group. MATERIALS AND METHODS A cross-sectional study was planned where 80 joints in 40 patients were assessed for the above parameters; group I consisted of healthy patients, and group II included those with temporomandibular joint diseases (TMDs). The articular eminence height and inclination were assessed on the midsagittal section. The condylar changes and shapes of the glenoid fossa and condyles, as well as the joint spaces, were assessed on the selected coronal and sagittal sections. RESULTS The condylar fossa had a triangular shape in the TMJ group and an oval shape in the control group. The results were highly significant (P = 0.000**). A highly significant difference in morphological parameters, such as AJS, PJS, SJS, MJS, LJS, articular eminence height, and inclination, was found between the two groups (P = 0.000**). The association of morphological parameters, such as AJS, PJS, SJS, MJS, LJS, and articular eminence height and inclination were compared with condylar and glenoid fossa shapes, where the association of superior joint space and articular eminence inclination was observed. A highly significant difference was noted between the two groups with regard to all the parameters with P=0.00*. CONCLUSION The articular eminence inclination, as well as the superior joint space, were found to be associated with the glenoid and condyle fossa shapes in the TMJ group. These observations would, therefore, help in the early diagnosis of temporomandibular joint diseases.
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Affiliation(s)
- Xiaoyin Hu
- Department of Imaging, The First People's Hospital of Lianyungang, Lianyungang, Jiangsu Province, 222002, China
| | - Bhavana Sujanamulk
- Department of Oral Medicine and Radiology, DRS Sudha and Negeswararao Siddhartha Institute of Dental Sciences, Chinnoutpalli, Gannavaram, Andhra Pradesh, India
| | - Chintamaneni Raja Lakshmi
- Department of Oral Medicine and Radiology, DRS Sudha and Negeswararao Siddhartha Institute of Dental Sciences, Chinnoutpalli, Gannavaram, Andhra Pradesh, India
| | - Changhui Li
- Department of Radiology, People's Hospital of Luxian County, Luzhou, Sichuan Province, 646100, China
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Möst T, Winter L, Ballheimer YE, Kappler C, Schmid M, Adler W, Weber M, Kesting MR, Lutz R. Prevalence of carotid artery calcification detected by different dental imaging techniques and their relationship with cardiovascular risk factors, age and gender. BMC Oral Health 2023; 23:949. [PMID: 38037004 PMCID: PMC10691106 DOI: 10.1186/s12903-023-03564-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 10/22/2023] [Indexed: 12/02/2023] Open
Abstract
BACKGROUND Atherosclerosis and its secondary diseases display a major threat to patient's health. Sequelae, like carotid artery calcification (CAC), usually develop over decades and remain asymptomatic for a long time, making preventive measures to reduce mortality and morbidity extremely important. Through panoramic radiography (PR) and cone beam computed tomography (CBCT), dentists may have helpful tools in aiding the holistic care of patients. In this context, the correlation of atherosclerotic risk factors and CAC development have not yet been sufficiently investigated. Thus, the aim of this observational radiological study was to evaluate the diagnostic value of PR compared with CBCT for the detection of CAC in patients older than 60 years. The radiological findings were correlated with gender, age, and cardiac risk factors. METHODS PRs and CBCTs of N = 607 patients were used for the qualitative analysis and compared. Basic patient information such as age, gender, body mass index (BMI), smoking history as well as patient's detailed medical history, including heart disease and cardiovascular risk factors such as hypercholesterolemia, arterial hypertension and diabetes mellitus type II were documented and their relation to CAC provided by radiological data was estimated in the form of odds ratios (OR), which were calculated using logistic regression models. Proportions of CAC in different risk groups were compared using Fisher's exact test, the significance level was set to α ≤ 0.05. The interrater reliability of two physicians was estimated using Cohen's kappa. RESULTS With an accuracy of 90.6%, a sensitivity of 67.5% and a specificity of 99.5% compared to CBCT, PR was a reliable method for the diagnosis of CAC. The overall detection rate for CAC was 27.8% across all age groups. Age (OR: 1.351; p = 0.021), the male sex (OR: 1.645; p = 0.006), arterial hypertension (OR: 2.217; p = < 0.001), heart disease (OR: 1.675; p = 0.006), hypercholesterolemia (OR: 1.904; p = 0.003) and chronic obstructive pulmonary disease (OR: 2.016; p = 0.036) were statistically significant risk factors. When correlated, neither history of stroke nor nicotine abuse showed any statistical significance. CONCLUSIONS Due to the capabilities of PR in the diagnosis of CAC, dentists can play a vital role in the early diagnosis of vascular disease. Awareness should therefore be raised among dentists regarding the detection of CAC in patients over 60 years of age, with a particular focus on those with arterial hypertension and hypercholesterolaemia.
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Affiliation(s)
- Tobias Möst
- Department of Oral and Maxillofacial Surgery, University Hospital Erlangen, Glückstraße 11, 91054, Erlangen, Germany.
| | - Linus Winter
- Department of Oral and Maxillofacial Surgery, University Hospital Erlangen, Glückstraße 11, 91054, Erlangen, Germany
| | - Yili Elisabeth Ballheimer
- Department of Oral and Maxillofacial Surgery, University Hospital Erlangen, Glückstraße 11, 91054, Erlangen, Germany
| | - Christian Kappler
- Department of Oral and Maxillofacial Surgery, University Hospital Erlangen, Glückstraße 11, 91054, Erlangen, Germany
| | - Magdalena Schmid
- Department of Oral and Maxillofacial Surgery, University Hospital Erlangen, Glückstraße 11, 91054, Erlangen, Germany
| | - Werner Adler
- Department of Medical Informatics, Biometry and Epidemiology (IMBE), University of Erlangen- Nuremberg, Erlangen, Germany
| | - Manuel Weber
- Department of Oral and Maxillofacial Surgery, University Hospital Erlangen, Glückstraße 11, 91054, Erlangen, Germany
| | - Marco Rainer Kesting
- Department of Oral and Maxillofacial Surgery, University Hospital Erlangen, Glückstraße 11, 91054, Erlangen, Germany
| | - Rainer Lutz
- Department of Oral and Maxillofacial Surgery, University Hospital Erlangen, Glückstraße 11, 91054, Erlangen, Germany
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Kuang S, Liu Y, Zhuang W, Li K, Yang W, Tian Y. The effect of root orientation on inferior alveolar nerve injury after extraction of impacted mandibular third molars based on propensity score-matched analysis: a retrospective cohort study. BMC Oral Health 2023; 23:929. [PMID: 38008723 PMCID: PMC10680265 DOI: 10.1186/s12903-023-03661-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 11/13/2023] [Indexed: 11/28/2023] Open
Abstract
BACKGROUND The injury of the inferior alveolar nerve (IAN) is one of the most serious complications of impacted mandibular third molars (IMTMs) extraction. The influence of the root orientation of IMTMs on IAN injury is still controversial. A deeper understanding of the risk factors of IAN injury conduces to better prevention of IAN injury. This study aims to explore whether root orientation is an independent risk factor of IAN injury during IMTMs extraction using the statistical strategy of propensity score matching (PSM). METHODS This retrospective cohort study included 379 patients with 539 cases of high-risk IMTMs screened by panoramic radiography and cone beam computed tomography. The IAN injury incidence after extraction of different groups of IMTMs was analyzed using the chi-square test or Fisher's exact test. The correlation between third molar root orientation and impaction depth/contact degree with IAN was evaluated by the Lambda coefficient. Based on PSM for balancing confounding factors including age, sex, impaction depth, and contact degree, the effect of root orientation on the incidence of IAN injury was further analyzed using Fisher's exact test. RESULTS There were significant group differences in IAN injury incidence in impaction depth, root orientation, and contact degree of root-IAC before PSM. Root orientation was correlated with impaction depth and contact degree of root-IAC. After PSM, there were 9 cases with IAN injury and 257 cases without IAN injury. There were significant group differences between the buccal and non-buccal groups after PSM, and the risk of IAN injury was higher when the root was located on the buccal side of IAC (OR = 8.448, RR = 8). CONCLUSIONS Root orientation is an independent risk factor of IAN injury, and the risk is higher when the root is located on the buccal side of IAC. These findings could help better evaluate the risk of inferior alveolar nerve injury before the extraction of IMTMs.
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Affiliation(s)
- Shijun Kuang
- Hospital of Stomatology, Guangdong Provincial Clinical Research Center of Oral Diseases, Guangdong Provincial Key Laboratory of Stomatology, Guangdong Key Laboratory for Dental Disease Prevention and Control, Sun Yat-Sen University, No.56, Lingyuan West Road, Yuexiu District, Guangzhou City, Guangdong Province, 510030, China.
| | - Yuhao Liu
- Hospital of Stomatology, Guangdong Provincial Clinical Research Center of Oral Diseases, Guangdong Provincial Key Laboratory of Stomatology, Guangdong Key Laboratory for Dental Disease Prevention and Control, Sun Yat-Sen University, No.56, Lingyuan West Road, Yuexiu District, Guangzhou City, Guangdong Province, 510030, China
| | - Weijie Zhuang
- Hospital of Stomatology, Guangdong Provincial Clinical Research Center of Oral Diseases, Guangdong Provincial Key Laboratory of Stomatology, Guangdong Key Laboratory for Dental Disease Prevention and Control, Sun Yat-Sen University, No.56, Lingyuan West Road, Yuexiu District, Guangzhou City, Guangdong Province, 510030, China
| | - Kechen Li
- Hospital of Stomatology, Guangdong Provincial Clinical Research Center of Oral Diseases, Guangdong Provincial Key Laboratory of Stomatology, Guangdong Key Laboratory for Dental Disease Prevention and Control, Sun Yat-Sen University, No.56, Lingyuan West Road, Yuexiu District, Guangzhou City, Guangdong Province, 510030, China
| | - Wenbin Yang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, No.14, Third Section of Ren Min Nan Road, Chengdu City, Sichuan Province, 610041, China
| | - Yihong Tian
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, No.14, Third Section of Ren Min Nan Road, Chengdu City, Sichuan Province, 610041, China
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Yang Q, Fan Z, Tang P, Jiang Y, Han M, Li L. Characteristics of mandibular anterior alveolar bone in patients with different degrees of periodontitis: a retrospective study based on CBCT. Clin Oral Investig 2023; 27:6709-6721. [PMID: 37777638 DOI: 10.1007/s00784-023-05280-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 09/24/2023] [Indexed: 10/02/2023]
Abstract
OBJECTIVES To investigate the alveolar bone characteristics of mandibular anterior teeth in patients with periodontitis. MATERIALS AND METHODS 100 patients with periodontitis were selected and grouped according to the degrees of alveolar bone resorption, age, gender, and tooth type. The labial thickness of the alveolar bone, the degree of alveolar bone resorption, angulation between the long axis of teeth and alveolar process, alveolar bone height and density of the mandibular anterior teeth were measured. RESULTS There were significant differences in alveolar bone morphology between these three groups. Compared with the mild and moderate groups, the severe group showed that the alveolar bone in the half of the root crown was thickened, the alveolar bone height was decreased, the cancellous alveolar bone density was increased, and the cortical alveolar bone density was decreased. The resorption of alveolar bone was characterized by greater resorption of proximal bone than that of labial bone with increased bone loss. There were also differences in alveolar bone characteristics among patients of different ages, genders, and tooth types. CONCLUSIONS The morphology of the mandibular anterior alveolar bone changed accordingly with the degree of periodontitis. Labial alveolar bone thickness and cortical alveolar bone density were negatively correlated with the degree of periodontitis, while alveolar bone height and cancellous alveolar bone density were positively correlated with the degree of periodontitis. CLINICAL RELEVANCE These results allow clinicians to better understand the alveolar bone morphology of the mandibular anterior teeth in patients with periodontitis, facilitating better treatment design and avoiding complications.
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Affiliation(s)
- Qi Yang
- Department of Periodontics, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
- Jiangsu Key Laboratory of Oral Disease, Nanjing Medical University, Nanjing, 210029, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, 210029, China
| | - Zixin Fan
- Department of Periodontics, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
- Jiangsu Key Laboratory of Oral Disease, Nanjing Medical University, Nanjing, 210029, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, 210029, China
| | - Pengzhou Tang
- Department of Periodontics, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
- Jiangsu Key Laboratory of Oral Disease, Nanjing Medical University, Nanjing, 210029, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, 210029, China
| | - Yue Jiang
- Department of Periodontics, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
- Jiangsu Key Laboratory of Oral Disease, Nanjing Medical University, Nanjing, 210029, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, 210029, China
| | - Minxuan Han
- Jiangsu Key Laboratory of Oral Disease, Nanjing Medical University, Nanjing, 210029, China.
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, 210029, China.
- Department of Orthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
| | - Lu Li
- Department of Periodontics, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
- Jiangsu Key Laboratory of Oral Disease, Nanjing Medical University, Nanjing, 210029, China.
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, 210029, China.
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9
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Yang M, Li C, Yang W, Chen C, Chung CH, Tanna N, Zheng Z. Accurate gingival segmentation from 3D images with artificial intelligence: an animal pilot study. Prog Orthod 2023; 24:14. [PMID: 37121951 PMCID: PMC10149545 DOI: 10.1186/s40510-023-00465-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 03/27/2023] [Indexed: 05/02/2023] Open
Abstract
BACKGROUND Gingival phenotype plays an important role in dental diagnosis and treatment planning. Traditionally, determining the gingival phenotype is done by manual probing of the gingival soft tissues, an invasive and time-consuming procedure. This study aims to evaluate the feasibility and accuracy of an alternatively novel, non-invasive technology based on the precise 3-dimension (3D) soft tissue reconstruction from intraoral scanning and cone beam computed tomography (CBCT) to predict the gingival biotype. METHODS As a proof-of-concept, Yorkshire pig mandibles were scanned, and the CBCT data were fed into a deep-learning model to reconstruct the teeth and surrounding bone structure in 3D. By overlaying the CBCT scan with the intraoral scans, an accurate superposition was created and used for virtual measurements of the soft tissue thickness. Meanwhile, gingival thicknesses were also measured by a periodontal probe and digital caliper on the buccal and lingual sides at 3 mm apical to the gingival margin of the posterior teeth and compared with the virtual assessment at the same location. The data obtained from virtual and clinical measurements were compared by Wilcoxon matched-pairs signed-rank analysis, while their correlation was determined by Pearson's r value. The Mann-Whitney U test was used for intergroup comparisons of the amount of difference. RESULTS Among 108 investigated locations, the clinical and virtual measurements are strongly positively correlated (r = 0.9656, P < 0.0001), and only clinically insignificant differences (0.066 ± 0.223 mm) were observed between the two assessments. There is no difference in the agreement between the virtual and clinical measurements on sexually matured samples (0.087 ± 0.240 mm) and pre-pubertal samples (0.033 ± 0.195 mm). Noticeably, there is a greater agreement between the virtual and clinical measurements at the buccal sites (0.019 ± 0.233 mm) than at the lingual sites (0.116 ± 0.215 mm). CONCLUSION In summary, the artificial intelligence-based virtual measurement proposed in this work provides an innovative technique potentially for accurately measuring soft tissue thickness using clinical routine 3D imaging systems, which will aid clinicians in generating a more comprehensive diagnosis with less invasive procedures and, in turn, optimize the treatment plans with more predictable outcomes.
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Affiliation(s)
- Min Yang
- Department of Orthodontics, School of Dental Medicine, University of Pennsylvania, 240 S 40Th St., Philadelphia, PA, 19104, USA
| | - Chenshuang Li
- Department of Orthodontics, School of Dental Medicine, University of Pennsylvania, 240 S 40Th St., Philadelphia, PA, 19104, USA.
| | - Wen Yang
- The Webb Schools, Claremont, CA, 91711, USA
| | - Chider Chen
- Department of Oral and Maxillofacial Surgery and Pharmacology, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
- Center of Innovation and Precision Dentistry, School of Dental Medicine, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Chun-Hsi Chung
- Department of Orthodontics, School of Dental Medicine, University of Pennsylvania, 240 S 40Th St., Philadelphia, PA, 19104, USA
| | - Nipul Tanna
- Department of Orthodontics, School of Dental Medicine, University of Pennsylvania, 240 S 40Th St., Philadelphia, PA, 19104, USA
| | - Zhong Zheng
- David Geffen School of Medicine, University of California, Los Angeles, 675 Charles E. Young Drive, South, MRL 2641A, Los Angeles, CA, 90095, USA.
- School of Dentistry, University of California, Los Angeles, 675 Charles E. Young Drive, South, MRL 2641A, Los Angeles, CA, 90095, USA.
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10
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Musa M, Zhang Q, Awad R, Wang W, Ahmed MMS, Zhao Y, Almashraqi AA, Chen X, Alhammadi MS. Quantitative and qualitative condylar changes following stabilization splint therapy in patients with temporomandibular joint disorders. Clin Oral Investig 2023; 27:2299-2310. [PMID: 37039959 DOI: 10.1007/s00784-023-04963-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 03/19/2023] [Indexed: 04/12/2023]
Abstract
OBJECTIVE This study aimed to explore the quantitative and qualitative condylar changes following stabilization splint (S.S) therapy, including condylar position, morphology, and bone mineral density (BMD) in subjects with temporomandibular disorders (TMD). MATERIALS AND METHODS In this retrospective clinical study, we enrolled 40 TMD subjects (80 joints) aged 18 to 35 years, for whom a S.S was used to treat TMD. The 80 TMD consists of 32 masticatory muscle disorders (myalgia) and 48 TMJ disorders (arthralgia). Cone beam computed tomography (CBCT) was used to scan the TMJs of subjects pre- and post-treatment for three-dimensional analysis (3D). Using Mimics software v.21.0, quantitative (3D condylar and joint spaces dimensions parameters were measured using linear measurements in millimeters, according to the Kamelchuk method and Ikeda method, while the assessment of anteroposterior condyle position within the glenoid fossa was based on the method of Pullinger and Hollender), and qualitative (a round bone tissue with an area of 2 mm2 in three representative areas according to the Kamelchuk method to measure condylar BMD) pre- and post-treatment. Intra- and inter-group statistical comparisons were performed using the Wilcoxon signed ranks and the Kruskal-Wallis test, respectively. RESULTS The course of treatment was 6-12 months, with an average of 9.1 months. For the pre- and post-treatment quantitative comparisons, there was a statistically significant difference in the anterior joint space (AJS) and coronal medial space, as well as the condyle length in the myalgia group and condylar width in the arthralgia group. For qualitative measurements, a significant difference was observed in the posterior slope of the myalgia group and the arthralgia group's anterior, superior, and posterior slopes. The inter-group comparisons revealed significant differences in AJS, condylar length, and anterior slope density. CONCLUSION In short-term follow-up, the S.S influenced patients with TMD from different origins; it changes anterior and coronal medial joint space, condyle length in myalgia, and width in arthralgia. Furthermore, it improved the condyle bone density more evidently in arthralgia. CLINICAL RELEVANCE This study highlights the influence of S.S on symptomatic populations with TMD of different origins from a qualitative and quantitative perspective.
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Affiliation(s)
- Mazen Musa
- Department of Stomatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, People's Republic of China
- Department of Orthodontics, Al Tagana Dental Teaching Hospital, Faculty of Dentistry, University of Science and Technology Omdurman, Omdurman, 11111, Khartoum, Sudan
| | - Qianqian Zhang
- Department of Stomatology, Shaan'xi Provincial People's Hospital, Xi'an, Shaanxi, People's Republic of China
| | - Riham Awad
- Department of Pediatrics Dentistry, College of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China
| | - Wenfang Wang
- Department of Stomatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, People's Republic of China
| | - Madiha Mohammed Saleh Ahmed
- Department of Stomatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, People's Republic of China
- Department of Orthodontics, Faculty of Dentistry, Aden University, Aden, Yemen
| | - Yunshan Zhao
- Department of Stomatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, People's Republic of China
| | - Abeer A Almashraqi
- Department of Pre-Clinical Oral Health Sciences, College of Dental Medicine, QU Health, Qatar University, Doha, Qatar
| | - Xi Chen
- Department of Stomatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, People's Republic of China.
| | - Maged S Alhammadi
- Orthodontics and Dentofacial Orthopedics, Department of Preventive Dental Sciences, College of Dentistry, Jazan University, Jazan, Saudi Arabia
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11
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Jiang Y, Cui W, Chen J, Wu Q, Wang H, Zheng L, Wang X, Li L, Guo S, Xu Y. Clinical, radiographic characterizations and complications of maxillary molar in a periodontitis population: a retrospective study based on CBCT radiography. Clin Oral Investig 2023. [PMID: 36607492 DOI: 10.1007/s00784-022-04845-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 12/26/2022] [Indexed: 01/07/2023]
Abstract
OBJECTIVE This study was aimed to delineate the clinical, CBCT radiographic characteristics, and complications of maxillary molar in a periodontitis population. MATERIALS AND METHODS Medical records and CBCT images were utilized to identify adult patients with periodontitis in a tertiary referral dental hospital between June 2019 and December 2020. CBCT scan images were used to characterize the detailed bone thickness, absorbing height, and position of maxillary molar as well as their associated conditions. All relevant descriptive epidemiological data, clinical information, radiographic details, and associated complications were recorded and statistically analyzed. RESULTS According to the above criteria, 577 eligible periodontitis patients were enrolled and defined as research cohort here with mean age 45 ± 4.8 years. Male patients outnumbered females with a gender ratio of 1.23:1. Our results demonstrated that the bone loss of maxillary first molar was more serious than that of second molar with tooth position symmetry. The occurrence of various complications (periodontal abscess, pulp lesions, furcation lesion, and mucosal thickening) was significantly correlated to periodontal-related clinical parameters of maxillary molar. CONCLUSIONS Our results demonstrated the more serious bone loss of maxillary first molar with tooth position symmetry. The occurrence of various complications was significantly correlated to periodontal-related clinical parameters. Our findings offer valuable information concerning the clinical, radiographic characteristics, and complications of maxillary molar in a periodontitis population. CLINICAL RELEVANCE These findings are beneficial for clinicians to comprehensively understand the bone status, pathogenesis, and clinical management of maxillary molar in periodontitis.
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12
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Faeli Ghadikolaei R, Ghorbani H, Seyedmajidi M, Ebrahimnejad Gorji K, Moudi E, Seyedmajidi S. Genotoxicity and cytotoxicity effects of x-rays on the oral mucosa epithelium at different fields of view: A cone beam computed tomography technique. Caspian J Intern Med 2023; 14:121-127. [PMID: 36741479 PMCID: PMC9878913 DOI: 10.22088/cjim.14.1.121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 03/15/2022] [Accepted: 04/10/2022] [Indexed: 02/07/2023]
Abstract
Background Cone beam computed tomography (CBCT) is considered a common examination for dentistry problems. Cellular biology can be affected by exposure to ionizing radiations procedures. In this study, we aimed to assess the genotoxicity and cytotoxicity effects of CBCT dental examinations at two different fields of view (FOVs) in exfoliated buccal epithelial cells. Methods Sixty healthy adults participated in the current study. They were divided into two identical groups; CBCT with FOV of 6*6 cm2 and 8*11 cm2. Exfoliated oral mucosa cells were prepared immediately before and after 10-12 days of CBCT exposure. The cytological smears were stained with the Papanicolaou technique. The amounts of micronuclei and other cytotoxicity cellular changes (Pyknosis, Karyolysis, and Karyorrhexis) were evaluated. The variables of the parameters before and after CBCT examination in the two investigated FOVs were performed using Wilcoxon test and paired-samples t-test in SPSS software. Results The micronuclei and other cytotoxic changes parameters before and after CBCT exposure for both FOVs (6*6 and 8*11 cm2) increased significantly (p<0.001). Furthermore, a significant difference (p<0.05) was observed between the investigated parameters at the two FOVs. Notably, the FOV of 8*11 cm2 had more side effects than that of 6*6 cm2. There were no statistically significant among males and females for both FOVs. Conclusion CBCT examinations of dental disorders would increase the risks of inducing genetic damage. The cytotoxicity and chromosomal damage were considered in males and females in both investigated FOVs (6*6 and 8*11 cm2). In this regard, the use of CBCT must be following the ALARA principle.
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Affiliation(s)
| | - Hakimeh Ghorbani
- Oral Health Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Maryam Seyedmajidi
- Dental Materials Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Kourosh Ebrahimnejad Gorji
- Department of Medical Physics Radiobiology and Radiation Protection, School of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - Ehsan Moudi
- Oral Health Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran,Correspondence: Ehsan Moudi, Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Babol University of Medical Sciences, Babol, Iran. E-mail: , Tel: +98 1132291408
| | - Seyedali Seyedmajidi
- Dental Materials Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
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13
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Chandran S, Sers L, Picciocchi G, Luongo F, Lerner H, Engelschalk M, Omar S. Guided implant surgery with R2Gate®: A multicenter retrospective clinical study with 1 year of follow-up. J Dent 2022; 127:104349. [PMID: 36283626 DOI: 10.1016/j.jdent.2022.104349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/18/2022] [Accepted: 10/20/2022] [Indexed: 11/06/2022] Open
Abstract
PURPOSE To present the results obtained with a novel sleeveless and keyless guided implant surgery system. METHODS Inclusion criteria for this multicenter clinical retrospective study were fully or partially edentulous patients who had been treated with a sleeveless and keyless guided implant surgery system (R2Gate®, Megagen), and who had been rehabilitated with fixed restorations, with a minimum follow-up of 1 year. All surgeries and prosthetic procedures were conducted following the same protocol, and data were obtained from the patients' medical records. The outcomes were the fit and stability of the surgical guide, any intra-operative and immediate post-operative complications, any biologic and prosthetic complications that occurred during the 1-year follow-up period, implant survival, and prosthetic success. RESULTS Sixty patients were selected for the installation of 124 implants, through a guided procedure: 66 sleeveless, keyless surgical guides were manufactured. The incidence of immediate intra-operative (lack of space: 12.1%; lack of implant stability 2.6%) and immediate post-operative (pain and discomfort: 6.6%; mild swelling 3.3%) complications was low. In total, 112/124 implants (90.3%) were successfully placed with a guided procedure, in 52 patients; among them, 82 (73.2%) were placed with a flapless procedure. Thirty fixtures supported single crowns (SCs), 42 fixed partial dentures (FPDs) and 52 full-arch (FA) restorations. Sixty-two fixed prosthetic restorations (30 SCs, 22 FPDs and 10 FAs) were delivered; among these restorations, 15 (24.1%) were subjected to immediate functional loading. All implants (100%) survived. Two implants had peri‑implant mucositis (1.6%), two SCs had abutment screw loosenings (1.6%), two FAs and one FPD had ceramic chipping/fracture (2.4%), for an overall prosthetic success amounting to 88.7%. CONCLUSIONS Within the limits of this study, this novel guided surgery system appeared to be clinically reliable; further studies are needed to confirm these results. STATEMENT OF CLINICAL RELEVANCE The use of sleveless and keyless surgical guides can be clinically reliable and may be represent a valid option for the surgeon.
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Affiliation(s)
- Segin Chandran
- Research Fellow, Santosh University, No.1 Santosh Nagar, Pratap Vihar, Ghaziabad, Uttar Pradesh 201009, India
| | - Laurent Sers
- Private Practitioner, 54 Rue d'Antibes, Cannes 06400, France
| | - Guido Picciocchi
- Private Practitioner, via Brigata Liguria 3, Genova 16121, Italy
| | | | - Henriette Lerner
- Department of Oral, Maxillofacial and Plastic Surgery, Goethe University, Frankfurt, Germany
| | | | - Sam Omar
- Private Practitioner, OneDay Clinic, Shalz Mall, G2C4 2nd floor, El Sheikh Zayed City 7th District, Mogawra 2, Giza, Governorate 12593, Egypt; OneDay Digital Academy, Shalz Mall, G2C13 2nd Floor, El Sheikh Zayed City 7th District, Mogawra 2, Giza, Governorate 12593, Egypt.
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14
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Abu Zeid ST, Edrees HY. Root fracture healing outcome after a revascularization procedure: an 8-year follow-up case report. J Clin Pediatr Dent 2022; 46:88-93. [PMID: 36624919 DOI: 10.22514/jocpd.2022.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 09/01/2022] [Indexed: 01/11/2023] Open
Abstract
Pulp revascularization is the traditional protocol for treating immature necrotic teeth; however, it is not the usual management practice for traumatized teeth with horizontal root fracture. This is a case report of an 11-year-old patient subjected to trauma that occurred four years prior to treatment. The trauma led to horizontal root fracture in tooth #11, and the immature tooth #21 became necrotic with periapical radiolucency. Both teeth were treated with revascularization procedures. Each tooth was disinfected with triple antibiotic paste and a coronal seal using mineral trioxide aggregate. During the eight-year follow-up using periapical radiograph and cone beam computed tomography, tooth #21 showed periapical repair with apical closure. The fractured rooted tooth #11 was functional and asymptomatic, with evidence of bone growth inside the fracture line. From this case outcome, revascularization can be a successful treatment modality for traumatized teeth that have either root fracture or necrotic open apex.
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Affiliation(s)
- Sawsan T Abu Zeid
- Endodontic Department, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia.,Endodontic Department, Faculty of Dentistry, Cairo University, Egypt
| | - Hadeel Y Edrees
- Endodontic Department, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
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15
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Nair AP, Shyamsunder M, Subash P, Sankar G. Efficacy of Gas Combination Cryotherapy in the Management of Odontogenic Keratocyst of the Maxilla and Mandible: A Pilot Study. J Maxillofac Oral Surg 2022; 21:979-989. [PMID: 36274897 PMCID: PMC9474762 DOI: 10.1007/s12663-021-01664-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 10/26/2021] [Indexed: 11/27/2022] Open
Abstract
Aim The aim of this study was to evaluate outcome of management of odontogenic keratocyst (OKC) using gas combination cryotherapy (GCC). GCC is a treatment modality where cyst enucleation is followed by applying an adjuvant agent, a spray containing propane, butane and isobutene gas onto the bony bed. Materials and Methods This was a prospective interventional study which included patients with radiographic and histopathologic evidence of OKC. All patients underwent enucleation of the cysts followed by spraying of the bony cavity with "ENDOFROST ™"(commercially available agent for GCC). Patients were periodically reviewed and the presence of wound dehiscence, infection and neurosensory deficit was noted. After 15 months, a CBCT was taken to assess the amount of bone formation, the presence of any pathologic fracture or recurrence. Comparison of the preoperative and the postoperative size of the defect was also assessed. Results A total of 10 patients were included in the study of which only 2 presented with neurosensory deficit in the post-op period. One patient of the two patients recovered completely within 12 months, while the other recovered within 15 months. There was no evidence of any patient developing infection, wound dehiscence, recurrence or pathologic fracture. Conclusion The results of the study show that enucleation followed by GCC is a safe, effective and low-cost therapy for the management of OKC.
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Affiliation(s)
- Anjali P. Nair
- Department of Oral and Maxillofacial Surgery, Amrita Institute of Medical Science, Kochi, Kerala India
| | - M. Shyamsunder
- Department of Oral and Maxillofacial Surgery, Amrita Institute of Medical Science, Kochi, Kerala India
| | - Pramod Subash
- Department of Craniofacial Surgery, Amrita Institute of Medical Science, Kochi, Kerala India
| | - Giri Sankar
- Department of Oral and Maxillofacial Surgery, Amrita Institute of Medical Science, Kochi, Kerala India
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16
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Abdulghani EA, Al-Sosowa AA, Alhammadi MS, Al-Fakeh H, Al-Gumaei WS, Almashraqi AA, Sharhan HM, Cao B. Three-dimensional assessment of the favorability of maxillary posterior teeth intrusion in different skeletal classes limited by the vertical relationship with the maxillary sinus floor. Head Face Med 2022; 18:13. [PMID: 35413855 PMCID: PMC9003971 DOI: 10.1186/s13005-022-00316-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 04/02/2022] [Indexed: 12/25/2022] Open
Abstract
Background Understanding the anatomical relationship between the maxillary sinus floor (MSF) and the posterior maxillary teeth (PMT) is important when planning the orthodontic intrusion of the posterior teeth. This study aimed to determine the vertical relationship between posterior maxillary teeth and maxillary sinus floor in different skeletal classes in the Chinese adult population. Methods This is a retrospective cross-sectional study involved cone beam computed tomography images of 298 adult patients (145 males and 153 females) between 20 and 45 years old. The sample was categorized according to A point, Nasion, B point (ANB) angle into 102 Class I, 102 Class II, and 94 Class III malocclusion. Non-parametric Wilcoxon Mann–Whitney U and Kruskal–Wallis tests were used to compare the studied groups. The Intra-class Correlation Coefficient (ICC) was used to assess the intra- and inter-observer reliability analysis. Results Overall, there was a statistically significant difference in the mean distance between both genders (P < 0.001). The measured distance increased with age in all posterior tooth roots (P < 0.001). The root apex in the sagittal view appeared to be closer to the maxillary sinus than in the coronal view; 2.2 ± 4.3 and 3.1 ± 5.5 mm, respectively. The most frequent root scores were Type 1 and Type 2P. In both sagittal and coronal views, Class I demonstrated a higher Type 2P prevalence, whereas Class III showed a lower prevalence. The second molars’ mesiobuccal root had the largest number of penetration in the three examined skeletal classes. Conclusions Maxillary molars of Class I malocclusion with the majority of Type 2P root-sinus relationship have the highest possible risk of root resorption during molar intrusion due to cortical bone encroachment, while Class III malocclusion showed the least possible risk. Supplementary information The online version contains supplementary material available at 10.1186/s13005-022-00316-3.
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Affiliation(s)
- Ehab A Abdulghani
- Department of Orthodontics and Dentofacial Orthopedics, College of Dentistry, Lanzhou University, Lanzhou, China
| | - Abeer A Al-Sosowa
- Department of Periodontics, Faculty of Dentistry, Thamar University, Dhamar, Republic of Yemen.,Department of Periodontics, College of Dentistry, Lanzhou University, Lanzhou, China
| | - Maged Sultan Alhammadi
- Division of Orthodontics and Dentofacial Orthopedics, Department of Preventive Dental Sciences, College of Dentistry, Jazan University, Jazan, Saudi Arabia.,Postgraduate Orthodontic Program, Department of Orthodontics, Pedodontics and Preventive Dentistry, Faculty of Dentistry, Sana'a University, Sana'a, Republic of Yemen
| | - Hanan Al-Fakeh
- Department of Prosthodontics, School of Stomatology, Lanzhou University, Lanzhou, China
| | - Waseem Saleh Al-Gumaei
- Department of Orthodontics and Dentofacial Orthopedics, College of Dentistry, Lanzhou University, Lanzhou, China.,School of Dentistry, Faculty of Dentistry, Ibb University, Ibb, Republic of Yemen
| | - Abeer A Almashraqi
- Department of Pre-clinical Oral Health Sciences, College of Dental Medicine, QU Health, Qatar University, Doha, Qatar
| | - Hasan M Sharhan
- Department of Orthodontics and Dentofacial Orthopedics, College of Dentistry, Lanzhou University, Lanzhou, China
| | - BaoCheng Cao
- Department of Orthodontics and Dentofacial Orthopedics, College of Dentistry, Lanzhou University, Lanzhou, China.
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17
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Alyafrusee ES, Alhammadi MS, Almaqrami BS, Abdulqader AA, Alsomairi MA, Alhadad SA, Liling R. Three-dimensional assessment of temporomandibular joint in skeletal Class I malocclusion with variable degrees of overbite and overjet. Cranio 2022:1-11. [PMID: 35102813 DOI: 10.1080/08869634.2022.2028114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVE To three-dimensionally evaluate the position and morphology of the TMJ in skeletal Class I with variable degrees of overbite and overjet in comparison with normal peers. METHODS Pretreatment CBCT scans of 126 adults were retrieved. Based on the severity of overjet and overbite, the sample was divided into three main groups and six subgroups (18 patients each): the first group with a normal overbite and variable overjet degree and the second group with normal overjet and variable overbite degree. These six subgroups were compared with a third control group of normal overjet and overbite. RESULTS There were significant differences in vertical condylar position, vertical and anteroposterior condylar inclinations, condylar height, and significant posterior condylar positioning in severe deep overbite, compared with the control group. CONCLUSION There were significant changes in the TMJ components in severe deep overbite cases. Therefore, sever deep overbite could be considered a predisposing factor for temporomandibular disorders.
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Affiliation(s)
- Enas Senan Alyafrusee
- Orthodontic Department, School of Stomatology, Lanzhou University, Lanzhou, China
- Department of Orthodontics and Dentofacial Orthopedics, Faculty of Dentistry, Ibb University, Ibb, Republic of Yemen
| | - Maged Sultan Alhammadi
- Division of Orthodontics and Dentofacial Orthopedics, Department of Preventive Dental Sciences, Faculty of Dentistry, Jazan University, Jazan, Saudi Arabia
| | - Bushra Sufyan Almaqrami
- Department of Orthodontics and Dentofacial Orthopedics, Faculty of Dentistry, Ibb University, Ibb, Republic of Yemen
- Department of Orthodontics, Hubei-most Klos & Klobm, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Abbas Ahmed Abdulqader
- Department of Orthodontics, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Majedh Abdo Alsomairi
- Orthodontic Department, School of Stomatology, Lanzhou University, Lanzhou, China
- Department of Orthodontics and Dentofacial Orthopedics, Faculty of Dentistry, Ibb University, Ibb, Republic of Yemen
- Department of Orthodontics,School and Hospital of Stomatology, China Medical University, Shenyang, China
| | - Saba Ahmed Alhadad
- Orthodontic Department, School of Stomatology, Lanzhou University, Lanzhou, China
| | - Ren Liling
- Orthodontic Department, School of Stomatology, Lanzhou University, Lanzhou, China
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Abesi F, Alimohamadi M. Cone Beam Computed Tomography (CBCT) findings of fungal sinusitis in post COVID-19 patient: A case report. Caspian J Intern Med 2022; 13:307-310. [PMID: 35872677 PMCID: PMC9272968 DOI: 10.22088/cjim.13.0.307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 02/23/2022] [Accepted: 02/26/2022] [Indexed: 10/31/2022]
Abstract
Background Fungal infections of the paranasal sinus are increasingly recognized in both normal and immunocompromised individuals. It is necessary to distinguish invasive diseases from the non- invasive as the result and prognosis of sinus treatment different in each one. CBCT imaging could help us in this regard. In this case, we describe a fungal sinusitis according to Cone Beam Computed Tomography (CBCT) findings. Case presentation We present a case of a 48-year-old woman with diabetes mellitus referred to our Maxillofacial Radiology Center in Babol, Iran. The patient has been discharged from the hospital recently after recovering from COVID-19 Considering the background systemic disease (diabetes) and clinical and radiological findings (extension of bone destruction), fungal sinusitis (invasive form) was listed top in the differential diagnosis list , as it is the most common condition in post-COVID-19 patients. Conclusion CBCT images are very useful for diagnosing normal anatomy variations and sinus lesions especially bone lesions .In this case, its early diagnosis led to rapid recovery of the patient.
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Affiliation(s)
- Farida Abesi
- Deprtment of Oral and Maxillofacial Radiology, Dental School, Babol University of Medical Sciences, Babol, Iran
| | - Mona Alimohamadi
- Department of Oral and Maxillofacial Radiology, Dental School, Mazandaran University of Medical Sciences, Sari, Iran,Correspondence: Mona Alimohamadi, Department of Oral and Maxillofacial Radiology, Dental School, Mazandaran University of Medical Sciences, Sari, Iran. E-mail: , Tel: 0098 1132291408, Fax: 0098 1132291408
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Cardinal L, da Silva TR, Andujar ALF, Gribel BF, Dominguez GC, Janakiraman N. Evaluation of the three-dimensional (3D) position of cervical vertebrae in individuals with unilateral posterior crossbite. Clin Oral Investig 2021. [PMID: 34258675 DOI: 10.1007/s00784-021-04020-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 05/31/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVE To evaluate the three-dimensional (3D) position of the cervical vertebrae of growing subjects with unilateral posterior crossbite (UPC). MATERIALS AND METHODS In this cross-sectional study, cone beam computed tomography (CBCT) scans of 1455 patients were screened, and ultimately 58 scans (26 patients with UPC and 32 controls with normal occlusion) were included after imposing inclusion/exclusion criteria. Roll, yaw, and deviation of the geometric center of C1, C2, and C3 vertebrae were measured and compared between groups. A correlation between these parameters and different variables on mandibular positioning was also carried out. RESULTS A statistically significant difference (p < 0.05) was observed between groups for the deviation of pogonium (Pog), mandibular plane roll, and C3 roll, and patients with UPC showed higher cant or deviation. A significant correlation was reported for the roll of C2 and C3 with the deviation of Pog, a roll of the occlusal plane, and roll of the mandibular plane (p < 0.05). The greater the deviation of the Pog to one side, the greater the roll of the vertebrae with this same side up. The same tendency was observed between the roll of the occlusal plane or the mandibular plane with the roll of these cervical vertebrae. CONCLUSIONS There is a positive correlation between transverse occlusal changes and positional deviations of the cervical vertebrae, especially C2 and C3. CLINICAL RELEVANCE The study results do not allow us to infer the clinical/functional consequences of these deviations, as well as if malocclusion's treatment would result in an improvement of intervertebral relationships.
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Abstract
Oral medicine practice includes the diagnosis and nonsurgical treatment of oral and orofacial diseases and oral manifestations of systemic conditions. Oral medicine specialists in medical and dental settings often require imaging in assessment and treatment of these conditions. This article reviews imaging that may be used in practice, particularly as relevant for facial pain, bone conditions, and salivary gland disease. It reviews imaging that may be considered in a hospital setting for assessment of admitted patients, patient evaluation before surgical procedures, and provision of dentistry in a hospital setting for patients who cannot submit to treatment in an outpatient setting.
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Affiliation(s)
- Katherine France
- University of Pennsylvania School of Dental Medicine, 240 South 40th Street, Philadelphia, PA 19104, USA.
| | | | - Mel Mupparapu
- University of Pennsylvania School of Dental Medicine, 240 South 40th Street, Philadelphia, PA 19104, USA
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López-Jarana P, Díaz-Castro CM, Falcão A, Falcão C, Ríos-Santos JV, Fernández-Palacín A, Herrero-Climent M. Height difference between the vestibular and palatal walls and palatal width: a cone beam computed tomography approach. BMC Oral Health 2021; 21:118. [PMID: 33722235 PMCID: PMC7958492 DOI: 10.1186/s12903-020-01322-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 11/10/2020] [Indexed: 11/15/2022] Open
Abstract
Background The objective of this study was to measure two parameters involved in tri-dimensional implant planning: the position of the buccal and palatal bone wall and the palatal thickness. Methods Cone beam computed tomography (CBCT) images (Planmeca ProMax 3D) of 403 teeth (208 upper teeth and 195 lower teeth) were obtained from 49 patients referred to the Dental School of Seville from January to December 2014. The height difference between the palatal and buccal walls was measured on the most coronal point of both walls. The thickness of the palatal wall was measured 2 mm from the most coronal point of the palatal wall. Results The mean values in the maxilla were 1.7 ± 0.9 mm for central and lateral incisors, 2.2 ± 1.7 mm for canines, 1.6 ± 0.9 mm for premolars and 1.9 ± 1.5 mm for molars. In the lower jaw, the mean values were 1.3 ± 0.8 mm for incisors, 1.7 ± 1.2 mm for canines, 2.3 ± 1.3 mm for premolars, and 2.6 ± 1.7 mm for molars. In the upper jaw, more than 55% of maxillary teeth (excluding second premolars and molars) presented mean height differences greater than 1 mm. In the mandible, more than 60% of incisors showed a buccal bone thickness of 1 mm from the apical to lingual aspect. All teeth except the second premolar presented a buccal wall located more than 1 mm more apically than the lingual bone wall. Conclusions The buccal bone wall is located more apically (greater than 1 mm) than the palatal or lingual table in most of the cases assessed. The thickness of the palatal or lingual table is also less than 2 mm in the maxilla and mandible, except in the upper canines and premolars and the lower molars.
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Affiliation(s)
| | | | - A Falcão
- Porto Dental Institute, Porto, Portugal.,Faculty of Dentistry Oporto University (FMDUP), Porto, Portugal
| | - C Falcão
- Health Sciences Faculty, Fernando Pessoa University, Porto, Portugal
| | - J V Ríos-Santos
- School of Dentistry, Universidad de Sevilla, C/ Avicena S/N, 41009, Seville, Spain.
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Kingma RA, Voskamp MJH, Doornweerd BHJ, de Jong IJ, Roemeling S. Intraoperative cone beam computed tomography for detecting residual stones in percutaneous nephrolithotomy: a feasibility study. Urolithiasis 2021; 49:551-557. [PMID: 33683420 PMCID: PMC8560674 DOI: 10.1007/s00240-021-01259-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 02/23/2021] [Indexed: 11/27/2022]
Abstract
Cone beam computed tomography (CBCT) provides multiplanar cross-sectional imaging and three-dimensional reconstructions and can be used intraoperatively in a hybrid operating room. In this study, we investigated the feasibility of using a CBCT-scanner for detecting residual stones during percutaneous nephrolithotomy (PCNL). Intraoperative CBCT-scans were made during PCNL procedures from November 2018 until March 2019 in a university hospital. At the point where the urologist would have otherwise ended the procedure, a CBCT-scan was made to image any residual fragments that could not be detected by either nephroscopy or conventional C-arm fluoroscopy. Residual fragments that were visualized on the CBCT-scan were attempted to be extracted additionally. To evaluate the effect of this additional extraction, each CBCT-scan was compared with a regular follow-up CT-scan that was made 4 weeks postoperatively. A total of 19 procedures were analyzed in this study. The mean duration of performing the CBCT-scan, including preparation and interpretation, was 8 min. Additional stone extraction, if applicable, had a mean duration of 11 min. The mean effective dose per CBCT-scan was 7.25 mSv. Additional extraction of residual fragments as imaged on the CBCT-scan occurred in nine procedures (47%). Of the follow-up CT-scans, 63% showed a stone-free status as compared to 47% of the intraoperative CBCT-scans. We conclude that the use of CBCT for the detection of residual stones in PCNL is meaningful, safe, and feasible.
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Affiliation(s)
- R A Kingma
- Department of Urology, University of Groningen, University Medical Center Groningen, House Zip Code CB 62, PO Box 30.001, 9700 RB, Groningen, The Netherlands.
| | - M J H Voskamp
- Department of Urology, University of Groningen, University Medical Center Groningen, House Zip Code CB 62, PO Box 30.001, 9700 RB, Groningen, The Netherlands
| | - B H J Doornweerd
- Department of Urology, University of Groningen, University Medical Center Groningen, House Zip Code CB 62, PO Box 30.001, 9700 RB, Groningen, The Netherlands
| | - I J de Jong
- Department of Urology, University of Groningen, University Medical Center Groningen, House Zip Code CB 62, PO Box 30.001, 9700 RB, Groningen, The Netherlands
| | - S Roemeling
- Department of Urology, University of Groningen, University Medical Center Groningen, House Zip Code CB 62, PO Box 30.001, 9700 RB, Groningen, The Netherlands
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Buranaporn P, Dankulchai P, Jaikuna T, Prasartseree T. Relation between DIR recalculated dose based CBCT and GI and GU toxicity in postoperative prostate cancer patients treated with VMAT. Radiother Oncol 2021; 157:8-14. [PMID: 33418004 DOI: 10.1016/j.radonc.2020.12.036] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 12/21/2020] [Accepted: 12/22/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND AND PURPOSE To investigate the relationship between deformable image registration (DIR) recalculated dose on cone beam computed tomography (CBCT) and gastrointestinal and genitourinary toxicity in postoperative prostate cancer patients treated with volumetric modulated arc therapy and its actual delivered dose. MATERIAL AND METHODS A total of 114 patients were retrospectively studied. Delineation of rectum and bladder was performed on each CBCT image. Actual delivered dose on CBCT available fraction was recalculated using DIR. Dosimetric parameters of rectum and bladder were then evaluated by Quantitative Analyses of Normal Tissue Effects in the Clinic study. Differences in mean volume between patients with grade 0-1 and grade 2-5 CTCAEv5.0 toxicities were compared. Relationship between toxicity and radiation volume was analyzed using logit analysis. RESULTS Significant differences between the actual and planned dose-volume were observed in nearly all doses of rectum. High-grade acute rectal toxicity was significantly associated with planned dose-volume in V50 and V75, and actual dose in all doses. High-grade chronic rectal toxicity was significantly associated with all planned and actual rectal dose-volume parameters. There was no significant association between all dose-volume parameters and acute or chronic bladder toxicity. CONCLUSION Significant differences between actual and planned dose-volume, and significant association between actual dose-volume and acute rectal toxicity, but not planned dose-volume suggests that actual dose-volume may more precisely reflect toxicity due to daily variation in the rectum during the treatment course. Adaptive planning should be considered as a novel approach for reducing toxicity.
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Affiliation(s)
- Panyapat Buranaporn
- Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Pittaya Dankulchai
- Division of Radiation Oncology, Department of Radiology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand.
| | - Tanwiwat Jaikuna
- Division of Radiation Oncology, Department of Radiology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Tissana Prasartseree
- Division of Radiation Oncology, Department of Radiology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
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Abstract
Cone beam computed tomography (CBCT) is a well-established imaging modality with numerous proven applications across multiple clinical disciplines. More recently, CBCT has emerged as an important imaging tool for bronchoscopists, primarily used during transbronchial biopsy of peripheral pulmonary lesions (PPLS). For this application CBCT has proved useful in navigating devices to a target lesion, in confirming device tool-in-lesion, as well as during tissue acquisition. In addition, CBCT is poised to play an important role in trials evaluating bronchoscopic ablation by helping to determine the location of the ablative probe relative to the target lesion. Before adopting this technology, it is key for bronchoscopists to learn some basic concepts that will allow them to have a safer and more successful experience with CBCT. Hence, in the current manuscript, we will focus on both technical and practical aspects of CBCT imaging, ranging from systems considerations, image quality, radiation dose and dose-reduction strategies, procedure room set-up, and best practices for CBCT image acquisition.
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Affiliation(s)
| | | | - Krish Bhadra
- Department of Pulmonology and Critical Care, CHI Memorial Medical Group, Chattanooga, TN, USA
| | - Roberto F Casal
- Department of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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Colak O, Paredes NA, Elkenawy I, Torres M, Bui J, Jahangiri S, Moon W. Tomographic assessment of palatal suture opening pattern and pterygopalatine suture disarticulation in the axial plane after midfacial skeletal expansion. Prog Orthod 2020; 21:21. [PMID: 32686018 PMCID: PMC7370251 DOI: 10.1186/s40510-020-00321-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 05/18/2020] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVE The purpose of this study was to assess the palatal suture opening and the pterygopalatine suture disarticulation pattern in the tomographic axial plane after treatment with midfacial skeletal expander (MSE). MATERIALS AND METHODS Pre- and post-expansion CBCT records of 50 subjects (20 males, 30 females, mean age 18 ± 3 years) who were treated with MSE (Biomaterials Korea, Seoul, Korea) appliance were superimposed and compared using OnDemand software. Reference planes were identified and the angulation of the midpalatal suture opening after expansion was calculated as well as the frequency of the pterygopalatine suture split. RESULTS After MSE treatment, the mean palatal suture opening angle (SOA) was 0.57°. (- 0.8° to 1.3°). There was no significant difference between males and females in terms of the palatal suture opening pattern (P > 0.05). Only 3 out of 50 (6%) subjects presented SOA above 1 degree. Also, 3 out of 50 (6%) patients presented a negative SOA value. With regard to the pterygopalatine suture split, 84 sutures out of 100 (84%) presented openings between the medial and lateral pterygoid plates on both right and left sides. Partial split was detected with 8 patients (5 females, 3 males). Five patients had split only in the medial pterygoid plates of both pterygomaxillary sutures, and 3 patients exhibited disarticulation on the right side only. No significant differences were found in the frequency of suture opening between males and females (P = 1.000). CONCLUSIONS MSE appliance performed almost parallel expansion in the axial view. Remarkably, this study shows that pterygopalatine suture can be split by MSE appliance without the surgical intervention; the disarticulation of pterygopalatine suture was visible in most of the patients.
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Affiliation(s)
- Ozge Colak
- School of Dentistry, Center for Health Science, University of California at Los Angeles, Room 63-082 CHS, 10833 Le Conte Ave, Box 951668, Los Angeles, CA, 90095-1668, USA.
| | - Ney Alberto Paredes
- School of Dentistry, Center for Health Science, University of California at Los Angeles, Room 63-082 CHS, 10833 Le Conte Ave, Box 951668, Los Angeles, CA, 90095-1668, USA
| | - Islam Elkenawy
- School of Dentistry, Center for Health Science, University of California at Los Angeles, Room 63-082 CHS, 10833 Le Conte Ave, Box 951668, Los Angeles, CA, 90095-1668, USA
| | - Martha Torres
- School of Dentistry, Center for Health Science, University of California at Los Angeles, Room 63-082 CHS, 10833 Le Conte Ave, Box 951668, Los Angeles, CA, 90095-1668, USA
| | - Joseph Bui
- School of Dentistry, Center for Health Science, University of California at Los Angeles, Room 63-082 CHS, 10833 Le Conte Ave, Box 951668, Los Angeles, CA, 90095-1668, USA
| | - Sara Jahangiri
- School of Dentistry, Center for Health Science, University of California at Los Angeles, Room 63-082 CHS, 10833 Le Conte Ave, Box 951668, Los Angeles, CA, 90095-1668, USA
| | - Won Moon
- School of Dentistry, Center for Health Science, University of California at Los Angeles, Room 63-082 CHS, 10833 Le Conte Ave, Box 951668, Los Angeles, CA, 90095-1668, USA.
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Shin Y, Sunada H, Shiraishi Y, Hosokawa M, Koh Y, Tei R, Aketa S, Motoyama Y, Yonezawa T, Nakase H. Navigation-assisted full-endoscopic spine surgery: a technical note. J Spine Surg 2020; 6:513-520. [PMID: 32656389 DOI: 10.21037/jss-2019-fess-19] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background Full-endoscopic spine surgery (FESS) necessitates the use of X-ray fluoroscopy for intraoperative guidance and orientation. However, the two-dimensional X-ray fluoroscopic images do not provide real-time guidance. The authors developed a new real-time three-dimensional (3D) navigation technique for FESS that entails the use of intraoperative cone beam computed tomography (CBCT) in a hybrid operating room (OR). Methods A total of 23 patients undergoing FESS using real-time 3D navigation system were enrolled. Preoperative and intraoperative CBCT data were registered in the navigation system. The 3D navigation was used to intraoperatively determine the trajectory and obtain position information. The feasibility and usefulness of the navigation system were retrospectively analyzed. Results Twenty patients had lumbar spine disease, whereas three patients had cervical spine disease. The 3D navigation was successfully used for intraoperative guidance and provided accurate information in all patients. X-ray fluoroscopy was not required in any of the patients. No complications associated with the use of 3D navigation system were encountered. Conclusions The use of real-time 3D navigation system in the hybrid OR was found to be safe and effective in providing intraoperative guidance for FESS.
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Affiliation(s)
- Yasushi Shin
- Department of Neurosurgery, Osaka Police Hospital, Osaka, Japan
| | - Hiromu Sunada
- Department of Neurosurgery, Osaka Police Hospital, Osaka, Japan
| | - Yuki Shiraishi
- Department of Neurosurgery, Osaka Police Hospital, Osaka, Japan
| | - Makoto Hosokawa
- Department of Neurosurgery, Osaka Police Hospital, Osaka, Japan
| | - Yumi Koh
- Department of Neurosurgery, Osaka Police Hospital, Osaka, Japan
| | - Rinsei Tei
- Department of Neurosurgery, Osaka Police Hospital, Osaka, Japan
| | - Shuta Aketa
- Department of Neurosurgery, Osaka Police Hospital, Osaka, Japan
| | - Yasushi Motoyama
- Department of Neurosurgery, Nara Medical University, Nara, Japan
| | - Taiji Yonezawa
- Department of Neurosurgery, Osaka Police Hospital, Osaka, Japan
| | - Hiroyuki Nakase
- Department of Neurosurgery, Nara Medical University, Nara, Japan
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Yazıcıoğlu S, Öz AA, Öz AZ, Arıcı N, Özer M, Arıcı S. Buccolingual Inclination Effects of Self-Ligating and Conventional Premolar Brackets: A Cone Beam Computed Tomography Study. Turk J Orthod 2020; 33:110-114. [PMID: 32637192 DOI: 10.5152/turkjorthod.2020.19079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 02/20/2020] [Indexed: 11/22/2022]
Abstract
Objective This study aimed to compare the effects of passive self-ligating (PSL) and conventional ligating (CL) of brackets on the buccolingual inclination (BLINC) of the maxillary premolars. Methods This in vitro study included a PSL bracket group and a CL bracket group. Acrylic teeth on typodonts were aligned using 0.014-inch heat-activated nickel titanium (HANT) (T1) and 0.019×0.025-inch HANT (T2) and 0.021×0.025-inch stainless steel (SS) (T3) archwires in a sequence. Standardized cone beam computed tomography (CBCT) images were taken immediately after each archwire stage. The differences of premolar teeth BLINC values in the 0.019×0.025-inch and 0.014-inch HANT archwires (T2-T1) and 0.021×0.025-inch SS and 0.019×0.025-inch HANT archwires (T3-T2) were compared between PSL and CL groups. The value of p < 0.05 was considered statistically significant. Results The BLINC change of the second premolar (SPM) showed a statistically significant difference (p=0.008), but the BLINC change of the first premolar (FPM) (p=0.056) between the groups showed no statistically significant difference during the T2-T1 stage. However, there were statistically significant differences between two groups in the BLINC of the FPM (p=0.032) and SPM (p=0.032) in the T3-T2 stage. The angular changes in the buccal direction in the PSL group were higher than those in the CL group. Conclusion The PSL upper premolar brackets used with the 0.021×0.025-inch SS archwire produced more buccal crown movement of the upper PM teeth compared with that of the CL brackets.
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Affiliation(s)
- Sabahat Yazıcıoğlu
- Department of Orthodontics, Ondokuz Mayıs University School of Dentistry, Samsun, Turkey
| | - A Alper Öz
- Department of Orthodontics, Ondokuz Mayıs University School of Dentistry, Samsun, Turkey
| | - A Zeynep Öz
- Department of Orthodontics, Ondokuz Mayıs University School of Dentistry, Samsun, Turkey
| | - Nursel Arıcı
- Department of Orthodontics, Ondokuz Mayıs University School of Dentistry, Samsun, Turkey
| | - Mete Özer
- Department of Orthodontics, Ondokuz Mayıs University School of Dentistry, Samsun, Turkey
| | - Selim Arıcı
- Department of Orthodontics, Ondokuz Mayıs University School of Dentistry, Samsun, Turkey
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Gallichan N, Albadri S, Dixon C, Jorgenson K. Trends in CBCT current practice within three UK paediatric dental departments. Eur Arch Paediatr Dent 2020; 21:537-42. [PMID: 32333273 DOI: 10.1007/s40368-020-00526-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 04/06/2020] [Indexed: 11/02/2022]
Abstract
INTRODUCTION Cone beam computed tomography (CBCT) is used across all dental specialties and has a number of advantages compared to 2D images. The SEDENTEXCT guidelines provide a number of indications for the use, however there are currently no specific guidelines for paediatric dentistry. The aim of this study was to assess current practice of CBCT imaging within paediatric dental departments in England, audit compliance of CBCT justifications against the standards set by SEDENTEXCT and assess whether the use of CBCT affected the treatment plan for each individual patient. METHODS From the retrospective analysis of CBCT examinations taken over a 4-year period across three dental hospitals in the north of England, the following data were collected: age at the time of exposure, clinical indication, region of interest (ROI) and diagnostic findings. Clinical notes were also used to identify whether the CBCT had an effect on the final treatment plan. RESULTS A total of 335 CBCT examinations were performed, mean age: 11 years. The number of CBCTs increased each year with a twofold increase in the first 2 years. The main clinical indication in 46% of CBCT examinations was the assessment of localised developing dentition, 68% were in the upper anterior sextant and 61% of CBCT exams were in the mixed dentition age group. The investigations were justified in 100% of the cases. CONCLUSION The quantity of CBCT examination in paediatric dental patients is increasing to assist treatment planning but more often to enable improved surgical planning.
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Chen JT, Zhou CY, He N, Wu YP. Optimal acquisition time to discriminate between breast cancer subtypes with contrast-enhanced cone-beam CT. Diagn Interv Imaging 2020; 101:391-399. [PMID: 32008993 DOI: 10.1016/j.diii.2020.01.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 12/29/2019] [Accepted: 01/02/2020] [Indexed: 01/09/2023]
Abstract
PURPOSE To identify the optimal acquisition time to best discriminate between benign and malignant breast lesions on contrast-enhanced cone beam CT (CE-CBCT) and evaluate the potential of CE-CBCT to differentiate between breast cancer subtypes. MATERIAL AND METHOD A total of 98 women with a mean age of 49±10 (SD) years (range: 29-77 years) with 100 BI-RADS 4 or 5 breast lesions were prospectively included. CE-CBCT images were obtained at 1- and 2-min after intravenous administration of iodinated contrast material. Contrast enhancement of breast lesions on CE-CBCT were evaluated and compared between different subtypes. Cut-off values for best discriminating between benign and malignant breast lesions with CE-CBCT were obtained from receiver operating characteristic curves. RESULTS Malignant breast lesions showed greater enhancement than benign ones at 1-min (67.28±39.79 [SD] HU vs. 42.27±40.31 [SD] HU, respectively; P=0.007) and 2-min (70.93±38.05 [SD] HU vs. 48.94±41.83 [SD] HU, respectively; P=0.016) after intravenous administration of contrast material. At 1-min after intravenous administration of contrast material, an optimal cut-off value of 54.43 HU was found to best discriminate between malignant and benign breast lesions (AUC=0.681; 95%CI: 0.558-0.805; P=0.006) yielding 69.0% sensitivity (95%CI: 56.9-79.5%) and 69.2% specificity (95% CI: 48.2-85.7%). At 2-min, an optimal cut-off value of 72.65 HU was found to best discriminate between malignant and benign breast lesions (AUC=0.654; 95%CI: 0.535-0.774; P=0.020) yielding 50.7% sensitivity (95%CI: 38.6-62.8%) and 80.8% specificity (95%CI: 60.6-93.4%). CE-CBCT helped differentiate between immunohistochemical subtypes of breast lesions with lowest enhancement for triple negative lesions. No differences in enhancement were found among histopathological subtypes lesions at 1-min (P=0.478) and 2-min (P=0.625). CONCLUSION CE-CBCT helps discriminate between malignant and benign breast lesions, with best capabilities obtained at 1-min after intravenous administration of contrast material. For malignant lesions, quantitative analysis of enhancement on CE-CBCT helps differentiate between immunohistochemical subtypes.
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Affiliation(s)
- J T Chen
- Department of Medical Imaging and Image-guided Therapy, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, 510060 Guangzhou, China
| | - C Y Zhou
- Department of Medical Imaging and Image-guided Therapy, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, 510060 Guangzhou, China
| | - N He
- Department of Medical Imaging and Image-guided Therapy, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, 510060 Guangzhou, China
| | - Y P Wu
- Department of Medical Imaging and Image-guided Therapy, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, 510060 Guangzhou, China.
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Rajput BS, Merita S, Parihar AS, Vyas T, Kaur P, Chansoria S. Assessment of Lingual Concavities in Submandibular Fossa Region in Patients requiring Dental Implants-A Cone Beam Computed Tomography Study. J Contemp Dent Pract 2018; 19:1329-1333. [PMID: 30602636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
AIM The present study was aimed at assessing the lingual concavities in the submandibular fossa region in patients requiring dental implants with the help of cone beam computed tomography (CBCT). MATERIALS AND METHODS The present study included 140 patients who visited the department with the missing mandibular posterior teeth. CBCT images were obtained using planmeca machine. Cross sections of 1 mm of submandibular fossa in the region of 1st and 2nd molar were studied and Type I to III lingual concavities were analyzed by a radiologist. RESULTS Type I lingual concavity (< 2 mm) was seen in 23%, type II (2-3 mm) in 62% and Type III (> 3 mm) in 15% of patients. The difference was significant (p < 0.05). Males had slightly higher mean ± S.D value at 1st molar (2.6 mm ± 0.94) and 2nd molar (2.8 mm ± 0.90) on the left side and (2.7 mm ± 0.92) at 1st molar and (2.9 mm ± 0.93) at 2nd molar on the right side. The difference was nonsignificant (p > 0.05). Females had mean ± S.D value at 1st molar (2.3 mm ± 0.90) and (2.5 mm ± 0.92) at 2nd molar on the left side and (2.4 mm ± 0.91) at 1st molar and (2.8 mm ± 0.93) at 2nd molar. The difference was nonsignificant (p > 0.05. The difference between both genders was statistically nonsignificant (p > 0.05). CONCLUSION Type I bone is the best for placing an implant. The chances of complications are more in type II and III bone. CBCT provides necessary information before planning implant in the edentulous area. CLINICAL SIGNIFICANCE Cone beam computed tomography (CBCT) is the best radiographic aid which is effective in delineating different types of bone in the mandibular posterior region.
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Affiliation(s)
- Bhoopendera S Rajput
- Department of Oral and Maxillofacial Surgery, RR Dental College, Udaipur, Rajasthan, India, Phone: +919501544877, e-mail:
| | - Sandeep Merita
- Department of Periodontology, JCD Dental College, Sirsa, Haryana, India
| | - Anuj S Parihar
- Department of Periodontology, RKDF Dental College and Research Centre, Bhopal, Madhya Pradesh, India
| | - Tarun Vyas
- Department of Oral Medicine and Radiology, RR Dental College and Hospital, Udaipur, Rajasthan, India
| | - Prabhjot Kaur
- Department of Oral Pathology and Microbiology, Desh Bhagat Dental College and Hospital, Mandi Gobindgarh, Punjab, India
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Kapoor V, Kumar N, Dahiya K, Sikka R, Sirana P, Singh A. To Assess and Evaluate the Variation of Mandibular Anatomy Using Cone Beam Computed Tomography Before Planning an Implant Surgery: A Population-based Retrospective Study. J Contemp Dent Pract 2018; 19:1381-1385. [PMID: 30602645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
AIM The accurate placement of implants in mandible requires consideration for angulations of the bone along with the vertical dimensions. The aim of this present study was to assess the variation of mandibular anatomy using computed tomography (CT) radiography and to evaluate the effect of presence and absence of teeth on the mandibular anatomy before planning an implant surgery. MATERIALS AND METHODS The present population-based retrospective study was conducted using 167 digital CT scan images those selected from departmental archives. The samples were sub-divided two groups: group 1included digital CT of edentulous mandible while group 2 included digital CT of edentulous mandible. The axial height, vertical height, and angulations were recorded separately for each group. RESULTS The results of the present study showed a gradual increase in mandibular angle in both the groups with a statistically significant difference only in the canine-premolar area. The axial height showed a significant difference at canine and first premolar area and a second premolar and the first molar area. However, available height showed a significant difference in canine and first premolar area and distal to the second molar area. When both the sides were compared, no statistically significant difference was observed between right and left sides. CONCLUSION It was concluded that due to the variability of the mandibular anatomy and because of the effects of various imperative factors, 3D imaging like CT scans should be recommended for safer and secure presurgical planning. CLINICAL SIGNIFICANCE In surgical osteotomies and implant placement especially in post-extraction sockets, two-dimensional (2D) image of panoramic radiographs should not be considered that reliable as these three-dimensional (3D) imaging radiographs. Therefore CT scans of various angulations and sections must be considered by the clinicians to rationally study the mandibular anatomy and their risk associated areas.
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Affiliation(s)
- Vikram Kapoor
- Department of Prosthodontics, Institute of Dental Studies and Technologies, Modinagar, Ghaziabad, Uttar Pradesh, India, Phone: +918882981272, e-mail:
| | - Narendra Kumar
- Department of Prosthodontics, Institute of Dental Studies and Technologies, Modinagar, Ghaziabad, Uttar Pradesh, India
| | - Kirti Dahiya
- Department of Prosthodontics, Institute of Dental Studies and Technologies, Modinagar, Ghaziabad, Uttar Pradesh, India
| | - Rohan Sikka
- Department of Prosthodontics, PDM Dental College and Research Institute, Bahadurgarh, Haryana, India
| | - Pallavi Sirana
- Department of Prosthodontics, Institute of Dental Studies and Technologies, Modinagar, Ghaziabad, Uttar Pradesh, India
| | - Abhinav Singh
- Department of Orthodontics, DJ Dental College, Modinagar, Ghaziabad, Uttar Pradesh, India
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Sijeria P, Bhartia R, Swamy Kv N, Kulkarni S, Singla S. Evaluation of Root Canal Filling in Primary Teeth by Volumetric Analysis: In Vitro Study. Int J Clin Pediatr Dent 2018; 11:386-392. [PMID: 30787551 PMCID: PMC6379537 DOI: 10.5005/jp-journals-10005-1545] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Accepted: 09/13/2018] [Indexed: 11/29/2022] Open
Abstract
Purpose This study was conducted to evaluate the efficacy of various techniques to fill root canals of primary teeth by volumetric analysis using cone beam computed tomography (CBCT) to assess percentage of obturated volume (POV), percentage volume of voids (PVV), and depth-of-fill. Methodology Root canals in 40 extracted deciduous maxillary incisors were instrumented with H-files to size 35 and volume of the canal measured using CBCT under “On Demand 3D AppTM Software” (Cybermed Inc. Medical 3D imaging software). The teeth were divided into four groups of 10 samples each and root filled by Lentulo spiral mounted on slow-speed hand-piece, NaviTip System, Bi-directional spiral and Combination method i.e. Lentulo spiral mounted on slow speed hand-piece followed by NaviTip syringe respectively, after that depth-of-fill for each group was checked. Then, the filled canal volume was measured using CBCT under “On Demand 3D AppTM Software”. Further, the (POV), (PVV) was calculated. Statistical analysis The data were statistically analysed using one-way ANOVA, Turkey post Hoc test and Pearson’s Chi-square test. Clinical significance Adequate adaptation of root canal filling material decreases the chance of microorganism regrowth, reinfection due to voids creation and minimizes the potential drawback of overfilling like foreign body reaction or deflection of the unerupted permanent tooth. Results The four groups were comparable in canal volume. The overall percentage of obturated volume was 53%, 59.7%, 40.3% and 75.1%; the overall percentage volume of voids was 48%, 40.3%, 58.6%, 29.5%; optimally filled canals for each group was 80%, 60%, 30% and 90% respectively (p < 0.05). Conclusion The greatest percentage of obturated volume and maximum number of optimally filled canals was obtained in method combining both Lentulo spiral in slow speed hand piece along with NaviTip system. Whereas, voids were the constant finding with all root fillings. How to cite this article: Sijeria P, Bhartia R, Swamy KVN, Kulkarni S, Singla S. Evaluation of Root Canal Filling in Primary Teeth by Volumetric Analysis: In Vitro Study. Int J Clin Pediatr Dent, 2018;11(5):386-392.
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Affiliation(s)
- Prachi Sijeria
- Senior Lecturer, Department of Pedodontics, Rishiraj College of Dental Science, Bhopal, Madhaya Pradesh, India
| | - Rahul Bhartia
- Senior Lecturer, Department of Conservative Dentistry and Endodontics, Rishiraj College of Dental Science, Bhopal, Madhaya Pradesh, India
| | - Nanjunda Swamy Kv
- Professor, Department of Paediatric Dentistry, Sri Aurobindo College of Dentistry, Indore, Madhaya Pradesh, India
| | - Sadanand Kulkarni
- Professor and HOD, Department of Paediatric Dentistry, Sri Aurobindo College of Dentistry, Indore, Madhaya Pradesh, India
| | - Shilpy Singla
- Professor and HOD, Department of Paediatric Dentistry, Rishiraj College of Dental Science, Bhopal, Madhaya Pradesh, India
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Ierardi AM, Pesapane F, Rivolta N, Fumarola EM, Angileri SA, Piacentino F, Carrafiello G. Type 2 endoleaks in endovascular aortic repair: cone beam CT and automatic vessel detection to guide the embolization. Acta Radiol 2018; 59:681-687. [PMID: 28856901 DOI: 10.1177/0284185117729184] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Background Dual-phase cone beam computed tomography (DP-CBCT) and automatic vessel detection (AVD) software are helpful tools for detecting arteries before planned endovascular interventions. Purpose To evaluate the usefulness of DP-CBCT and AVD software in guiding the trans-arterial embolization (TAE) of challenging T2 lumbar endoleaks (T2-L-EL). Material and Methods Ten patients with T2-L-EL were included in this study. The accuracy of DP-CBCT and the AVD software was defined by the ability to detect the endoleak and arterial feeding vessel, respectively. Technical success was defined as the correct positioning of the microcatheter using AVD software and the successful embolization of the endoleak. Clinical success was defined as the absence of recurrent endoleaks during follow-up and the stability of the sac diameter for persistent endoleaks. The total volume of iodinated contrast medium, overall procedure time, mean procedural radiation dose, and mean fluoroscopy time were recorded. Results The EL was detected by DP-CBCT in all patients. The AVD software identified the feeding arterial branch in all cases. In one patient, the nidus of the endoleak was not reached due to the small caliber of the feeding artery, even though the software had clearly identified the vessel route. The mean contrast volume was 109 mL, the mean overall procedural time was 74.3 min. The mean procedural radiation dose was 140.97 Gy cm2, and the mean fluoroscopy time was 29.8 min. Conclusion The use of DP-CBCT and the AVD software is feasible and may facilitate successful embolization in challenging occult T2-L-EL with complex vasculature.
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Affiliation(s)
- Anna Maria Ierardi
- Department of Diagnostic and Interventional Radiology, University of Milan, San Paolo Hospital, Milan, Italy
| | - Filippo Pesapane
- Department of Diagnostic and Interventional Radiology, University of Milan, San Paolo Hospital, Milan, Italy
| | - Nicola Rivolta
- Vascular Surgery Department, University of Insubria, Varese, Italy
| | - Enrico Maria Fumarola
- Department of Diagnostic and Interventional Radiology, University of Milan, San Paolo Hospital, Milan, Italy
| | - Salvatore Alessio Angileri
- Department of Diagnostic and Interventional Radiology, University of Milan, San Paolo Hospital, Milan, Italy
| | - Filippo Piacentino
- Unit of Interventional Radiology, Department of Radiology, University of Insubria, Varese, Italy
| | - Gianpaolo Carrafiello
- Department of Diagnostic and Interventional Radiology, University of Milan, San Paolo Hospital, Milan, Italy
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Cantarella D, Dominguez-Mompell R, Mallya SM, Moschik C, Pan HC, Miller J, Moon W. Changes in the midpalatal and pterygopalatine sutures induced by micro-implant-supported skeletal expander, analyzed with a novel 3D method based on CBCT imaging. Prog Orthod 2017; 18:34. [PMID: 29090368 PMCID: PMC5663987 DOI: 10.1186/s40510-017-0188-7] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 09/03/2017] [Indexed: 12/05/2022] Open
Abstract
Background Mini-implant-assisted rapid palatal expansion (MARPE) appliances have been developed with the aim to enhance the orthopedic effect induced by rapid maxillary expansion (RME). Maxillary Skeletal Expander (MSE) is a particular type of MARPE appliance characterized by the presence of four mini-implants positioned in the posterior part of the palate with bi-cortical engagement. The aim of the present study is to evaluate the MSE effects on the midpalatal and pterygopalatine sutures in late adolescents, using high-resolution CBCT. Specific aims are to define the magnitude and sagittal parallelism of midpalatal suture opening, to measure the extent of transverse asymmetry of split, and to illustrate the possibility of splitting the pterygopalatine suture. Methods Fifteen subjects (mean age of 17.2 years; range, 13.9–26.2 years) were treated with MSE. Pre- and post-treatment CBCT exams were taken and superimposed. A novel methodology based on three new reference planes was utilized to analyze the sutural changes. Parameters were compared from pre- to post-treatment and between genders non-parametrically using the Wilcoxon sign rank test. For the frequency of openings in the lower part of the pterygopalatine suture, the Fisher’s exact test was used. Results Regarding the magnitude of midpalatal suture opening, the split at anterior nasal spine (ANS) and at posterior nasal spine (PNS) was 4.8 and 4.3 mm, respectively. The amount of split at PNS was 90% of that at ANS, showing that the opening of the midpalatal suture was almost perfectly parallel antero-posteriorly. On average, one half of the anterior nasal spine (ANS) moved more than the contralateral one by 1.1 mm. Openings between the lateral and medial plates of the pterygoid process were detectable in 53% of the sutures (P < 0.05). No significant differences were found in the magnitude and frequency of suture opening between males and females. Correlation between age and suture opening was negligible (R2 range, 0.3–4.2%). Conclusions Midpalatal suture was successfully split by MSE in late adolescents, and the opening was almost perfectly parallel in a sagittal direction. Regarding the extent of transverse asymmetry of the split, on average one half of ANS moved more than the contralateral one by 1.1 mm. Pterygopalatine suture was split in its lower region by MSE, as the pyramidal process was pulled out from the pterygoid process. Patient gender and age had a negligible influence on suture opening for the age group considered in the study.
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Affiliation(s)
- Daniele Cantarella
- Division of Oral Biology and Medicine, School of Dentistry, Center for Health Science, University of California, 10833 Le Conte Avenue, Box 951668, Los Angeles, CA, 90095-1668, USA
| | - Ramon Dominguez-Mompell
- Division of Growth and Development, Section of Orthodontics, School of Dentistry, Center for Health Science, University of California, Room 63-082 CHS, 10833 Le Conte Avenue, Box 951668, Los Angeles, CA, 90095-1668, USA
| | - Sanjay M Mallya
- Division of Diagnostic and Surgical Sciences, Section of Oral and Maxillofacial Radiology, School of Dentistry, Center for Health Science, University of California, Room 53-068 B CHS, 10833 Le Conte Avenue, Box 951668, Los Angeles, CA, 90095-1668, USA
| | - Christoph Moschik
- Division of Growth and Development, Section of Orthodontics, School of Dentistry, Center for Health Science, University of California, Room 63-082 CHS, 10833 Le Conte Avenue, Box 951668, Los Angeles, CA, 90095-1668, USA
| | - Hsin Chuan Pan
- Division of Growth and Development, Section of Orthodontics, School of Dentistry, Center for Health Science, University of California, Room 63-082 CHS, 10833 Le Conte Avenue, Box 951668, Los Angeles, CA, 90095-1668, USA
| | - Joseph Miller
- Division of Integrative Anatomy, Department of Pathology and Laboratory Medicine, Geffen School of Medicine, Center for Health Science, University of California, Room 52-068 CHS, 10833 Le Conte Avenue, Box 951668, Los Angeles, CA, 90095-1668, USA
| | - Won Moon
- Division of Growth and Development, Section of Orthodontics, School of Dentistry, Center for Health Science, University of California, Room 63-082 CHS, 10833 Le Conte Avenue, Box 951668, Los Angeles, CA, 90095-1668, USA.
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Walliczek-Dworschak U, Diogo I, Strack L, Mandapathil M, Teymoortash A, Werner J, Güldner C. Indications of cone beam CT in head and neck imaging in children. Acta Otorhinolaryngol Ital 2017; 37:270-275. [PMID: 28872156 PMCID: PMC5584097 DOI: 10.14639/0392-100x-1219] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 09/21/2016] [Indexed: 11/23/2022]
Abstract
For imaging of bony structures, especially for the anterior and lateral skull base in ORL medicine, cone beam computed tomography (CBCT) is an increasingly used alternative to CT, with a lower exposition to plain radiography that makes its use for imaging, particularly in children, very interesting. The aim of this study was to analyse possible indications and settings for CBCT in children and compare them to those of adults. A total of 554 patients (age range 0-18 years, mean age 10.36 years), who underwent CBCT between 01/2004-06/2013 in the ENT department at the university clinic of Marburg were enrolled in this retrospective analysis to evaluate technical parameters and indications. Data on CBCT of all children were compared with previously published data collected from 1730 adults who were diagnosed with the help of CBCT in the ENT department at the university clinic of Marburg, during the years 2012-2013. The most frequent indications of CBCT in children vs. adults were in the anterior skull base region: mid-facial trauma (60.4%) vs. chronic rhinosinusitis (54.8%), disturbed nasal breathing (13.9% vs. 13.0%) and chronic rhinosinusitis (12%) vs. mid-facial trauma (10.8%). For the lateral skull base the main indications were cholesteatoma (20.3%) vs. position control of cochlear implant (CI) electrode (31.2%), chronic otorrhoea (17.5%) vs. cholesteatoma (20.9%), and position control of CI electrode (11.8%) vs. chronic otitis media mesotympanalis (6.8%). CBCT is a suitable imaging modality for bony structures in adults and children. Settings mainly depend on the region of interest. One aim should also be to reduce exposure to radiation in both adults and children.
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Affiliation(s)
| | | | | | | | | | | | - C. Güldner
- Department of ORL, Head and Neck Surgery, UKGM, Marburg, Germany
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Cordemans V, Kaminski L, Banse X, Francq BG, Cartiaux O. Accuracy of a new intraoperative cone beam CT imaging technique (Artis zeego II) compared to postoperative CT scan for assessment of pedicle screws placement and breaches detection. Eur Spine J 2017; 26:2906-2916. [PMID: 28528479 DOI: 10.1007/s00586-017-5139-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 05/13/2017] [Accepted: 05/14/2017] [Indexed: 12/30/2022]
Abstract
PURPOSE The goal of this study was to compare the accuracy of a novel intraoperative cone beam computed tomography (CBCT) imaging technique with that of conventional computed tomography (CT) scans for assessment of pedicle screw placement and breach detection. METHODS Three hundred and forty-eight pedicle screws were inserted in 58 patients between October 2013 and March 2016. All patients had an intraoperative CBCT scan and a conventional CT scan to verify the placement of the screws. The CBCT and CT images were reviewed by two surgeons to assess the accuracy of screw placement and detect pedicle breaches using two established classification systems. Agreement on screw placement between intraoperative CBCT and postoperative CT was assessed using Kappa and Gwet's coefficients. Using CT scanning as the gold standard, the sensitivity, specificity, positive predictive value, and negative predictive value were calculated to determine the ability of CBCT imaging to accurately evaluate screw placement. RESULTS The Kappa coefficient was 0.78 using the Gertzbein classification and 0.80 using the Heary classification, indicating a substantial agreement between the intraoperative CBCT and postoperative CT images. Gwet's coefficient was 0.94 for both classifications, indicating almost perfect agreement. The sensitivity, specificity, positive predictive value and negative predictive value of the CBCT images were 77, 98, 86, and 96%, respectively, for the Gertzbein classification and 79, 98, 88, and 96%, respectively, for the Heary classification. CONCLUSIONS Intraoperative CBCT provides accurate assessment of pedicle screw placement and enables intraoperative repositioning of misplaced screws. This technique may make postoperative CT imaging unnecessary.
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Affiliation(s)
- Virginie Cordemans
- Neuro Musculo Skeletal Lab (NMSK), Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Avenue Mounier 53, Box B1.53.07, 1200, Brussels, Belgium.
| | - Ludovic Kaminski
- Service D'orthopédie et de traumatologie de l'appareil Locomoteur, Cliniques Universitaires, Saint-Luc, Avenue Hippocrate 10, 1200, Brussels, Belgium
| | - Xavier Banse
- Neuro Musculo Skeletal Lab (NMSK), Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Avenue Mounier 53, Box B1.53.07, 1200, Brussels, Belgium.,Service D'orthopédie et de traumatologie de l'appareil Locomoteur, Cliniques Universitaires, Saint-Luc, Avenue Hippocrate 10, 1200, Brussels, Belgium
| | - Bernard G Francq
- Instiute of Statistics, Biostatistics and Actuarial sciences (ISBA), Université Catholique de Louvain-la-Neuve, Voie du Roman Pays 34/ L1.03.01, Louvain-la-Neuve, 1348, Belgium
| | - Olivier Cartiaux
- Neuro Musculo Skeletal Lab (NMSK), Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Avenue Mounier 53, Box B1.53.07, 1200, Brussels, Belgium
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Priya PV, Nasyam FA, Ramprasad M, Penumatsa NV, Akifuddin S, Sandeep. Correlating the clinical assessment of impacted mandibular third molars with panoramic radiograph and intraoral periapical radiograph. J Int Soc Prev Community Dent 2017; 6:S219-S225. [PMID: 28217540 PMCID: PMC5285598 DOI: 10.4103/2231-0762.197198] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Aims And Objectives: This study was conducted to compare the clinical assessment of impacted third molars of mandible with panaromic radiograph (OPG) and intraoral periapical radiograph (IOPA) and to assess the efficacy of IOPA and. Moreover, we corroborated the OPG and IOPA findings of impacted mandiblar third molar root apex to inferior alveolar canal. Materials and Methods: A total of 200 patients with pericoronitis were examined who were indicated for surgical extraction, among which 50 patients were selected for the study. All the patients underwent a radiographic survey with a digital OPG and IOPA of impacted mandibular third molars, along with clinical survey for anatomic relationship, type of impaction, space available, position in relation to second molar, number of roots, root curvature, and proximity of nerve canal. The data was subjected to statistical analysis. The Statistical Package for Social Sciences version 4.0.1 software was used for analyzing the collected data. Results: The study revealed that IOPA was more accurate in determining a majority of the factors affecting the third molar surgery, including relationship of the external oblique ridge (IOPA vs OPG = 96%:90%), anteroposterior relation with ramus (IOPA vs OPG = 70%:66%), vertical depth of impaction (IOPA vs OPG = 72%:68%), number of roots (P = 0.013), morphology of roots (IOPA vs OPG = 96%:90%); however, OPG was found to be accurate in evaluating the type of impaction (IOPA vs OPG = 88%:94%), canal relation, along with root of impacted molar (IOPA vs OPG = 74%:86%). Conclusion: To conclude, although IOPA has a marginal angle over OPG in assessing various parameters, only the number of roots have a greater accuracy (P < 0.0013) in IOPA than with OPG. However, the OPG is the better choice to be considered when the patient is associated with trismus.
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Affiliation(s)
- P Vani Priya
- Department of Dental Surgery, Sri Venkateshwara Institute of Medical Sciences, Tirupathi, AndhraPradesh, India
| | - Fazil A Nasyam
- Department of Oral and Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, Prince Sattam Abdul Aziz University, Kingdom of Saudi Arabia
| | - M Ramprasad
- Department of Dental Surgery, Sri Venkateshwara Institute of Medical Sciences, Tirupathi, AndhraPradesh, India
| | - Narendra V Penumatsa
- Department of Preventive Dental Sciences, College of Dentistry, Prince Sattam Abdul Aziz University, Kingdom of Saudi Arabia
| | - Syed Akifuddin
- Department of Oral and Maxillofacial Surgery, Daswani Dental College, Kota, Rajasthan, India
| | - Sandeep
- Department of Oral and Maxillofacial Surgery, C.K.S. Teja Institrute of Dental Sciences, Tirupathi, AndhraPradesh, India
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Kanakavelu N, Samuel EJ. Accuracy in automatic image registration between MV cone beam computed tomography and planning kV computed tomography in image guided radiotherapy. Rep Pract Oncol Radiother 2016; 21:487-94. [PMID: 27489520 DOI: 10.1016/j.rpor.2016.07.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Revised: 12/04/2015] [Accepted: 07/06/2016] [Indexed: 11/23/2022] Open
Abstract
AIM To verify the accuracy of automatic image registration (IR) between the planning kilo voltage computed tomography (kV CT) and megavoltage cone beam computed tomography (MV CBCT) datasets using phantom and patient images. BACKGROUND The automatic IR between MV CBCT and planning kV CT is a fast solution for performing online image guided radiotherapy (IGRT). The IR accuracy has to be verified periodically as it directly affects patient setup accuracy. MATERIALS AND METHODS The automatic IR accuracy was evaluated using image quality phantom acquired with different kV CT slice thickness, different MV CBCT acquisition MUs and reconstruction slice size and thickness. The IR accuracy was also evaluated on patient images on different anatomical sites such as brain, head & neck, thorax and pelvis. The uncertainty in the automatic registration was assessed by introducing known offset to kV CT dataset and compared with the registration results. RESULTS The result with the phantom images was within 2 mm in all three translational directions. The accuracy in automatic IR using patient images was within 2 mm in most of the cases. 3 mm planning kV CT slice thickness was sufficient to perform automatic IR successfully within 2 mm accuracy. The MV CBCT reconstruction parameters such as slice thickness and slice size had no effect on the registration accuracy. CONCLUSION This study shows that the automatic IR is accurate within 2 mm and provides confidence in performing them between planning kV CT and MV CBCT image datasets for online image guided radiotherapy.
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Abstract
CONCLUSION Cone Beam Computed Tomography (CBCT) can be widely used in imaging of bony structures of the anterior and lateral skull base. Significant differences of applied dosages result from the different protocols of the various indications. OBJECTIVES CBCT is increasingly being used in head and neck imaging. Until now, no precise knowledge about its dedicated usage existed. METHODS All CBCT of 2012 and 2013 were analysed with regard to the technical parameters, the performance, and the indication for imaging. RESULTS In total, 1862 patients were examined in 2012 and 2013. The top eight indications of the anterior skull were (1) chronic rhinosinusitis with disturbed nasal breathing (30.3%); (2) chronic rhinosinusitis (17.6%); (3) midfacial traumatology (13.7%); (4) disturbed nasal breathing (12.8%); (5) acute rhinosinusitis (7.9%); (6) polyposis nasi (6.3%); (7) search for focus (3.9%); and (8) persistent rhinorrhea (1.2%). For the lateral skull base, the top eight were (1) control after cochlear implantation (28.4%); (2) cholesteatoma (19.7%); (3) visualization of ear anatomy (8.7%); (4) chronic otitis media mesotympanalis (6.3%); (5) conductive hearing loss (5.1%); (6) suspected mastoiditis (4.8%); (7) pathology of external auditory canal (4.8%); and (8) otosclerosis (3.3%). Applied dosage for the anterior skull base was significantly lower than for the lateral skull base (2.90 mGy vs 5.92 mGy, p < 0.05); 2.4% and 3.6% of patients' images, respectively, had to be repeated.
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Affiliation(s)
- Malene Stutzki
- a Department of ENT, Head and Neck surgery, UKGM , Marburg, Germany
| | - Evelyn Jahns
- a Department of ENT, Head and Neck surgery, UKGM , Marburg, Germany
| | | | - Isabell Diogo
- a Department of ENT, Head and Neck surgery, UKGM , Marburg, Germany
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Rusu MC, Săndulescu M, Ilie OC. Infraorbital canal bilaterally replaced by a lateroantral canal. Surg Radiol Anat 2015; 37:1149-53. [PMID: 25823691 DOI: 10.1007/s00276-015-1468-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Accepted: 03/23/2015] [Indexed: 11/24/2022]
Abstract
The infraorbital canal (IOC) normally courses above the maxillary sinus in the orbit floor. During a retrospective study of cone beam computed tomography (CBCT) scans, we found a previously unknown variant of the IOC. The IOCs were absent, being replaced by lateroantral canals coursing around and not above the maxillary sinus to open at infraorbital foramina which were located above the second upper premolar teeth. On coronal multiplanar reconstructions, the lateroantral canals were located anatomically at the outer limit of the zygomatic recess of each maxillary sinus, while the upper wall of the sinus was devoid of any canal. Such rare variant should be kept in mind by dental practitioners and surgeons, as it can determine modifications of common procedures. In this regard, the anatomy of maxilla, as well as mandible, should be evaluated in CBCT on a case-by-case basis.
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Affiliation(s)
- M C Rusu
- Division of Anatomy, Faculty of Dental Medicine, "Carol Davila" University of Medicine and Pharmacy, 8, Eroilor Sanitari Blvd., Sector 5, 050474, Bucharest, Romania.
| | - M Săndulescu
- Division of Oral Implantology, Faculty of Dental Medicine, "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania
| | - O C Ilie
- Department of Anatomy, "Victor Babeş" University of Medicine and Pharmacy, Timişoara, Romania
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