panoramic radiograph

全景射线照片
  • 文章类型: Case Reports
    锁骨发育不良(CCD)是一种罕见的,以独特的骨骼和牙齿异常为特征的先天性疾病。影像学检查结果,结合临床检查,帮助建立明确的诊断。了解CCD的广泛表现对于有效管理和治疗至关重要。本病例报告旨在全面概述一名25岁男性CCD患者,突出遗传病因,临床表现,放射学发现,以及对当前文献的回顾,以增强对这种罕见疾病的理解和认识。
    Cleidocranial dysplasia (CCD) is a rare, congenital disorder characterized by a unique constellation of skeletal and dental abnormalities. The imaging findings, combined with clinical examination, help establish a definitive diagnosis. Understanding the broad spectrum of manifestations in CCD is essential for effective management and treatment. This case report aims to provide a comprehensive overview of a 25-year-old male patient with CCD, highlighting the genetic etiologies, clinical presentation, radiological findings, and a review of current literature to enhance understanding and awareness of this rare condition.
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  • 文章类型: Journal Article
    背景:本研究的目的是确定磨牙切牙矿化不足与发育性牙齿异常之间是否存在关联。
    方法:两名儿科牙医评估了429名8-14岁磨牙门牙入矿不足的儿童(研究组)和437名无磨牙门牙入矿的儿童(对照组)的发育性牙齿异常的全景X线照片。十二种不同的发育牙齿异常被分为四种类型:大小(microdontia,巨大牙体);位置(上颌永久性第一磨牙的异位萌出,初级磨牙的内咬合);形状(融合,双生,撕裂,牛磺酸症,钉形上颌侧切牙);和数量(牙体发育不全,寡头,hyperdontia)异常。
    结果:研究组和对照组之间的牙齿发育异常频率没有显着差异,女性,和男性(p>0.05)。在发育大小的分布之间发现了统计学上的显着差异,position,形状,研究组和对照组之间的数量异常(p=0.024)。两组中最常见的异常是牙体发育不全(6.3%和5.9%,分别)。在所有儿童和女性的形状异常亚型方面,研究组与对照组之间存在显着差异(分别为p=0.045和p=0.05)。
    结论:虽然在有和没有磨牙门牙入矿的个体之间观察到发育牙齿异常类型的分布之间存在显着差异,在发育性牙齿异常的频率方面没有差异。
    The aim of this study was to determine whether there is any association between molar incisor hypomineralization and developmental dental anomalies.
    Two pediatric dentists evaluated panoramic radiographs of 429 children aged 8-14 years with molar incisor hypomineralization (study group) and 437 children without molar incisor hypomineralization (control group) in terms of developmental dental anomalies. Twelve different developmental dental anomalies were categorized into four types: size (microdontia, macrodontia); position (ectopic eruption of maxillary permanent first molars, infraocclusion of primary molars); shape (fusion, gemination, dilaceration, taurodontism, peg-shaped maxillary lateral incisors); and number (hypodontia, oligodontia, hyperdontia) anomalies.
    No significant difference was observed in the frequencies of developmental dental anomalies between the study and control groups in total, females, and males (p > 0.05). A statistically significant difference was found between the distribution of developmental size, position, shape, and number anomalies between the study and control groups (p = 0.024). The most common anomaly in both groups was hypodontia (6.3% and 5.9%, respectively). There was a significant difference between the study and control groups in terms of subtypes of shape anomaly in all children and females (p = 0.045 and p = 0.05, respectively).
    While a significant difference was observed between the distributions of types of developmental dental anomalies between individuals with and without molar incisor hypomineralization, there was no difference in terms of the frequency of developmental dental anomalies.
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  • 文章类型: Case Reports
    创伤性骨囊肿(TBC)是骨骼中一种不寻常的非肿瘤性假性囊腔,通常无症状且生长缓慢。通过常规射线照相成像意外地检测到它。这些病变在下颌骨比上颌骨更常见,它们常见于40岁以上的患者。具有扇形边缘的射线可透的单眼病变是最常见的影像学表现。如果发现空洞含有血液或稻草色液体,手术探查是对这种罕见情况做出结论性诊断的唯一方法。我们提出了一个无症状的病例,一名年轻患者的偶然诊断(在X光片上)外伤性骨囊肿,涉及下颌前区,并伴有根尖周围的射线不透性。通过X线片和组织病理学评估诊断该病例。
    A traumatic bone cyst (TBC) is an unusual non-neoplastic pseudocystic cavity in the bone that is often asymptomatic and slow-growing. It is unexpectedly detected by regular radiography imaging. These lesions are more common in the mandible than they are in the maxilla, and they are often seen in patients older than 40 years of age. A radiolucent unilocular lesion with scalloped margins is the most common radiographic appearance. If the hollow is found to contain blood or straw-colored fluid, surgical exploration is the only way to make a conclusive diagnosis of this uncommon condition. We present a case of an asymptomatic, incidentally diagnosed (on radiograph) traumatic bone cyst in a young patient involving the mandibular anterior region with periapical radiolucency. The case was diagnosed by radiographs and histopathological evaluation.
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  • 文章类型: Journal Article
    本研究的目的是使用定量光诱导荧光(QLF)图像评估口腔健康习惯和荧光菌斑指数(FPI)的牙周危险因素,并评估其对影像学骨丢失(RBL)程度的影响。选取276例19岁以上患者完成口腔健康习惯问卷并拍摄QLF图像,根尖和全景射线照片。口腔健康习惯评分,年龄,性别与FPI有统计学意义的相关性。随着口腔健康习惯评分的增加和年龄的降低,FPI显示出较低的值。此外,女性的FPI值低于男性。RBL与年龄呈统计学上的正相关,但与口腔健康习惯评分和性别无任何相关性。FPI与RBL之间无相关性。这项研究的结果表明,QLF的临床使用允许通过非侵入性程序进行牙菌斑检测,并且可以帮助更客观地估计口腔卫生状态。
    The aim of this study was to evaluate periodontal risk factors with oral health habits and fluorescent plaque index (FPI) using quantitative light-induced fluorescence (QLF) images, and to evaluate their effect on the degree of radiographic bone loss (RBL). Selected were 276 patients over 19 years of age to complete the questionnaire for oral health habit and take QLF images, periapical and panoramic radiographs. Oral health habit score, age, and sex showed a statistically significant correlation with FPI. FPI showed a lower value as the oral health habit score increased and the age decreased. Moreover, females showed lower FPI values than did males. RBL showed a statistically significant positive correlation with age but did not show any correlation with oral health habit scores and sex. There was no correlation between FPI and RBL. The results of this study suggest that the clinical use of QLF allows plaque detection by non-invasive procedures and can aid in a more objective estimation for oral hygiene status.
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  • 文章类型: Case Reports
    成像是诊断颌骨持续肿胀的第一步。颌骨淋巴瘤通常表现为定义不清的溶骨性病变。活检是强制性的,将导致明确的诊断。
    Imaging is the first step in diagnosing a persistent swelling of the jaw. A lymphoma in the jaw typically manifests as a poorly defined osteolytic lesion. A biopsy is mandatory and will result in definite diagnosis.
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  • 文章类型: Case Reports
    全景X射线照片中颞下颌关节的髁突吸收表明骨吸收,提示可能的退行性关节疾病需要早期筛查并随后转诊给专门的专家。该病例系列报告了3例接受了大约24-36个月的积极正畸治疗的患者。患者在初次检查时无症状。临床检查对点击是否定的;打开时的运动范围,横向偏移,突出是正常的。这些患者均无风湿性疾病或磨牙症病史。在正畸治疗的后期,三名患者中有两名报告在咀嚼过程中轻度疼痛和咔嗒声,这也得到了临床评估主席的确认。患者被转诊到口面部疼痛专家,他们是否为症状开了特定的药物,以及认知行为疗法,并进一步评估夹板治疗。在治疗开始前拍摄的全景X光片,在治疗期间和正畸治疗完成后,3例患者下颌髁突吸收均有进展,提示可能发生退变,需要进一步研究和治疗.
    Condylar resorption of temporomandibular joint findings in the panoramic radiographs is an indication of bone resorption suggesting possible degenerative joint disease that warrants early screen and subsequent referral to a dedicated specialist. This case series reports three patients that underwent the active orthodontic treatment for the duration of approximately 24-36 months. The patients were asymptomatic at the initial examination. The clinical examination was negative for clicking; the range of motion on opening, lateral excursion, and protrusion was normal. Neither of these patients had a history of rheumatic disease or bruxism. During the later stages of orthodontic treatment, two of the three patients reported mild pain and clicking during mastication, which was also confirmed chairside on clinical evaluation. Patients were referred to the orofacial pain specialist, were they were prescribed specific medication for the symptoms, along with cognitive behavioral therapy, and were further evaluated for splint therapy. Panoramic radiographs taken before the start of the treatment, during the treatment and at the completion of the orthodontic treatments indicate the progression in the resorption of mandibular condyle in all three patients suggesting possible degeneration that warrants further investigation and therapy.
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  • 文章类型: Case Reports
    Central osteomas of the jaws have been infrequently reported, mostly presenting as a well-defined opacity on conventional radiography projections and as a hyperdensity on computed tomography scans. To increase the knowledge of the phenotypic expression of gnathic central osteomas, an unusual case has been described, including the clinical, radiographic, cone beam computed tomography (CBCT) and histopathologic findings. The lesion was initially discovered 4 years prior as an asymptomatic ovoid radiolucency in the posterior mandible. A 25-year-old female presented with a hyperdense expansile mass with a hypodense rim on a CBCT scan. The enucleated mass was diagnosed as a compact central osteoma. A literature search has identified 4 other cases with similar hypodense borders on CT scans. We propose that a subset of central osteomas should be considered in the differential diagnosis of osteopathologies of the jaws with hyperdense internal architecture and hypodense borders, as seen on CT images.
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  • 文章类型: Journal Article
    OBJECTIVE: To evaluate if the presence of unilateral cleft lip and palate (UCLP) causes delay in dental age and tooth development.
    METHODS: Panoramic radiographs of 189 non-syndromic UCLP patients, aged from 6 to 20 years, were collected. Two measures of tooth development were examined: dental maturity scale for the seven left mandibular teeth (dental age-DA) and the degree of each tooth development (developmental score-DS). All the teeth except third molars were staged according to the Demirjian\'s method. The data of the cleft group were compared with a control group matched for age and gender, based on the findings observed in other 189 panoramic radiographs.
    RESULTS: At all ages, DA was lower in the UCLP group, but not always significantly; the highest difference was - 1.411 for females at 13 years old and - 0.776 for males at 12 years old. DS of all teeth was significantly lower in the UCLP group, at all ages under 17 in females, and at all ages under 18 in males. In UCLP group, tooth development was more delayed in the maxilla compared with the mandible. No evidence of a slower development at the cleft side compared with the non-cleft side was highlighted.
    CONCLUSIONS: Significant lower dental development was observed in UCLP patients compared with control ones by using DS and DA indexes.
    CONCLUSIONS: These findings can help the clinicians in establishing a proper orthodontic and surgical diagnosis and treatment planning in UCLP patients and for forensic age estimation\'s purposes.
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  • 文章类型: Journal Article
    Sheehan\'s syndrome (SHS) is a rare condition related to the risk of osteoporosis and evaluation of bone texture imaging features on panoramic radiographs would be suitable for this condition, which was the aim of the present study. Fractal dimension, lacunarity, and trabecular morphologic aspects were significantly altered in these patients.
    BACKGROUND: SHS is an important public health problem particularly in developing countries. It is characterized as postpartum hypopituitarism secondary to obstetric complications-related ischemic pituitary necrosis that shows significant systemic metabolic repercussions. Thus, this study aimed to evaluate bone texture parameters in digital panoramic radiographs of patients with SHS.
    METHODS: A case-control study was conducted with 30 SHS patients from an Endocrinology and Diabetology Service of reference in Brazil, and 30 age- and sex-matched healthy controls. A custom computer program measured fractal dimension, lacunarity, and some morphologic features in the following mandibular regions of interest (50 × 50 pixels): below the mental foramen (F1), between the first and second molars (M1), and at the center of the mandibular ramus (R1).
    RESULTS: The fractal analysis showed a statistically significant difference between the studied groups in all regions of interest. The fractal dimension in F1 (p = 0.016), M1 (p = 0.043), and R1 (p = 0.028) was significantly lower in SHS group, as well as lacunarity in R1 (p = 0.008). Additionally, several morphologic features were statistically significant in the SHS group (p < 0.05).
    CONCLUSIONS: Therefore, individuals with SHS showed altered imaging texture parameters on panoramic radiographs, which reflect a smaller spatial organization of the bone trabeculae and, possibly, a state of reduced mineral bone density.
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  • 文章类型: Case Reports
    神经纤维瘤是一种罕见的神经组织起源良性肿瘤,很少出现在口腔和颌骨中,因此引起了口腔医师的注意。一名22岁的男性患者报告称,自8-10年以来,面部左中部三分之一区域肿胀,其大小缓慢进展。他有皮肤上多种深棕色色素沉着的病史,与体内多个小结节生长的逐渐扩大和上颌骨左侧的单个坚硬结节生长有关。他在1岁时有结核病史,经过完全治疗,自最近2-3年以来,他患有反复发作的喉咙痛,发烧,腹泻,腹痛伴有呕吐和过度减肥。影像学检查结果显示不规则溶骨性病变,累及下颌骨的支和角度,通过预先成像观察到的颌骨和上颌骨后部的牙齿移位,并伴有异常的软组织增强。在血清学调查中,他是艾滋病毒阳性和组织病理学,诊断为神经纤维瘤病-1。据报道,只有4%至7%的受影响人群出现神经纤维瘤病的口腔表现。本文介绍了HIV阳性个体中最罕见的神经纤维瘤病-I病例报告,也涉及上颌骨,下颌骨以及颧骨弓。
    Neurofibroma is an uncommon benign tumour of neural tissue origin rarely presenting in the mouth and jaws and thereby attracting the attention of oral physicians. A 22-year-old male patient reported with a complaint of swelling in left middle one third region of face since 8-10 y which was slowly progressive in size. He had history of multiple dark brown pigmentation on skin associated with progressively enlarging multiple small nodular growths over the body and single firm nodular growth in left side of maxilla intraorally. He had history of tuberculosis at the age of one year which was treated completely and since last 2-3 y he was suffering from recurrent episodes of sore throat, fever, diarrhea, abdominal pain with vomiting and excessive weight loss. Radiographic findings showed irregular osteolytic lesions involving ramus and angle of mandible, zygomatic bone and posterior part of maxilla with displacement of teeth with abnormal soft tissue enhancement observed by advance imaging. On serological investigation he was HIV positive and histopathologically, diagnosed with Neurofibromatosis-1. Oral manifestations of neurofibromatosis have been reported in only 4% to 7% of affected persons. This article presents a rarest of rare case report of neurofibromatosis-I in HIV positive individual also involving maxilla, mandible as well as zygomatic arch.
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