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1.
Radiologe ; 60(1): 77-92, 2020 Jan.
Artículo en Alemán | MEDLINE | ID: mdl-31919535

RESUMEN

Despite the increasing use of modern digital cross-sectional imaging techniques (especially digital volume tomography) in dental X­ray examinations, orthopantomography remains the widely available, commonly used basic imaging modality for evaluating dental status prior to extensive treatment. It is also used for inflammatory and tumorous odontogenic osseous pathologies which are demonstrated with typical imaging findings. The classical X­ray tomography principle has been further developed for the presentation of the differently wide, shape variants of dental arches. The examination unit, consisting of a rigidly connected X­ray tube and detector, runs on an elliptical path around the facial skull. Thereby different rotation centers are controlled. Due to the different distances of the jaw sections to the X­ray tube and the image receiver, differencing velocities result and thus blurring effects as the basis of the layer or slice representation. Slit collimators lead to a narrow and continuous line-like representation of the different widths of the dental arch.


Asunto(s)
Radiografía Dental/métodos , Radiografía Panorámica , Humanos
2.
J Forensic Sci ; 65(1): 304-313, 2020 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-31145812

RESUMEN

In 1949, the American Graves Registration Service Pacific Zone proposed the identification of 27 sets of remains (skulls/crania/mandibles) based on comparisons with written dental records. All were denied, and the remains were buried as unknowns. In 2003 and 2015, the remains were exhumed by the DPAA. Currently, 26 individuals previously recommended for identification have been positively identified. The DPAA Science Director's opinion corresponded with 24 of their recommendations, while DNA excluded three. Caution should be taken by the forensic scientist when building assemblages through skeletal and dental articulation. The forensic odontologist must always consider variations in restorative care/extraction patterns and the possibility of documentation errors when reviewing/interpreting historical and current day dental records used for AM/PM comparisons. The odontologist should base their opinion on the strength of the antemortem/postmortem comparison, number and type of concordances, and distinct dental care and extraction patterns.


Asunto(s)
Restos Mortales , Registros Odontológicos , Odontología Forense/métodos , Amalgama Dental , Prótesis Dental , Exhumación , Historia del Siglo XX , Humanos , Mandíbula/patología , Maxilar/patología , Personal Militar/historia , Fotograbar , Radiografía Dental , Diente/patología , Estados Unidos , Segunda Guerra Mundial
3.
Arch Oral Biol ; 109: 104557, 2020 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-31557575

RESUMEN

OBJECTIVE: To investigate the effects of dental x-ray on proliferation and mineralization in human primary osteoblasts as well as on proliferation and apoptotic potential in human periodontal ligament (PDL) cells. DESIGN: Primary osteoblasts and PDL cells were irradiated with various doses of periapical radiography by repeated exposures and further incubated for 1, 3 or 7 days. Cell proliferation was assayed by BrdU incorporation. The effect of dental x-ray on mineralization in osteoblasts either before or after x-ray exposures was determined by Alizarin red staining. Both mRNA and protein expressions of BCL-2, an anti-apoptotic gene, and BAX, a pro-apoptotic gene, in PDL cells were analyzed by RT-qPCR and immunoblotting analysis, respectively. RESULTS: Neither the proliferative nor the mineralization ability of irradiated osteoblasts was different from that of non-irradiated osteoblasts at any doses or time points. By contrast, there was a significant decrease in the proliferation of PDL cells on day 3 after repeated exposures to dental x-ray for 20 times (P < 0.05), whereas the ratio of BCL-2 to BAX mRNA and protein expressions in these irradiated PDL cells was significantly increased (P < 0.05). CONCLUSIONS: Upon multiple exposures to dental x-ray used in intraoral radiography up to 20 times, there is no effect on the proliferation or the mineralization of osteoblasts, whereas the proliferative and apoptotic potentials of PDL cells are transiently decreased.


Asunto(s)
Fibroblastos/efectos de la radiación , Osteoblastos/efectos de la radiación , Ligamento Periodontal/citología , Rayos X , Adolescente , Adulto , Apoptosis , Diferenciación Celular , Proliferación Celular , Células Cultivadas , Niño , Femenino , Humanos , Masculino , Proteínas Proto-Oncogénicas c-bcl-2/genética , Radiografía Dental , Adulto Joven , Proteína X Asociada a bcl-2/genética
4.
J Orofac Orthop ; 81(1): 52-68, 2020 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-31853586

RESUMEN

PURPOSE: The aim of this investigation was to create an automated cephalometric X­ray analysis using a specialized artificial intelligence (AI) algorithm. We compared the accuracy of this analysis to the current gold standard (analyses performed by human experts) to evaluate precision and clinical application of such an approach in orthodontic routine. METHODS: For training of the network, 12 experienced examiners identified 18 landmarks on a total of 1792 cephalometric X­rays. To evaluate quality of the predictions of the AI, both AI and each examiner analyzed 12 commonly used orthodontic parameters on a basis of 50 cephalometric X­rays that were not part of the training data for the AI. Median values of the 12 examiners for each parameter were defined as humans' gold standard and compared to the AI's predictions. RESULTS: There were almost no statistically significant differences between humans' gold standard and the AI's predictions. Differences between the two analyses do not seem to be clinically relevant. CONCLUSIONS: We created an AI algorithm able to analyze unknown cephalometric X­rays at almost the same quality level as experienced human examiners (current gold standard). This study is one of the first to successfully enable implementation of AI into dentistry, in particular orthodontics, satisfying medical requirements.


Asunto(s)
Ortodoncia , Algoritmos , Inteligencia Artificial , Cefalometría , Humanos , Radiografía Dental
5.
Dentomaxillofac Radiol ; 49(1): 20190107, 2020 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-31386555

RESUMEN

OBJECTIVES: To investigate the current clinical applications and diagnostic performance of artificial intelligence (AI) in dental and maxillofacial radiology (DMFR). METHODS: Studies using applications related to DMFR to develop or implement AI models were sought by searching five electronic databases and four selected core journals in the field of DMFR. The customized assessment criteria based on QUADAS-2 were adapted for quality analysis of the studies included. RESULTS: The initial electronic search yielded 1862 titles, and 50 studies were eventually included. Most studies focused on AI applications for an automated localization of cephalometric landmarks, diagnosis of osteoporosis, classification/segmentation of maxillofacial cysts and/or tumors, and identification of periodontitis/periapical disease. The performance of AI models varies among different algorithms. CONCLUSION: The AI models proposed in the studies included exhibited wide clinical applications in DMFR. Nevertheless, it is still necessary to further verify the reliability and applicability of the AI models prior to transferring these models into clinical practice.


Asunto(s)
Inteligencia Artificial , Radiografía Dental , Radiología , Algoritmos , Inteligencia Artificial/normas , Inteligencia Artificial/tendencias , Humanos , Radiografía Dental/métodos , Radiografía Dental/tendencias , Reproducibilidad de los Resultados
6.
J Contemp Dent Pract ; 20(9): 1051-1055, 2019 Sep 01.
Artículo en Inglés | MEDLINE | ID: mdl-31797828

RESUMEN

AIM: The aim of this study was to evaluate and compare the values of Steiner's cephalometric analysis using Nemoceph and Foxit PDF Reader. No significant difference between the two methods will result in that Foxit PDF Reader can be used as a cost-effective alternative. MATERIALS AND METHODS: This study was conducted on 100 digital lateral cephalograms taken from the same machine. The samples were collected by nonprobability convenience sampling procedures. These images were analyzed for Steiner's cephalometric analysis using two software packages. RESULTS: The skeletal and dental values showed no statistically significant difference in the majority, except for the L1-NA (linear) and L1-NB (linear). CONCLUSION: Results showed that there is a high agreement between the two methods. CLINICAL SIGNIFICANCE: This article provides a simple and cost-effective method of onscreen cephalometric analysis. This technique uses the inbuilt measurement tools in the tool bar of our daily use software. The method can be used independently anywhere without any internet connection and software subscription.


Asunto(s)
Radiografía Dental , Programas Informáticos , Cefalometría , Radiografía , Reproducibilidad de los Resultados
7.
Medicine (Baltimore) ; 98(51): e17987, 2019 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-31860950

RESUMEN

INTRODUCTION: The odontogenic keratocyst (OKC), previously known as keratocystic odontogenic tumor has been the most disputable pathologies of the maxillofacial region. Patients with OKC are often asymptomatic but may present with pain, swelling, or discharge. Despite the aggressive nature, previous literature as early as 1970s reported the fact that parakeratinized OKC can be treated by means of marsupialization alone. PATIENTS CONCERNS: The patient had reported with a complaint of pain and swelling in relation with a tooth in mandibular right quadrant. DIAGNOSIS: This case report discusses features of a rare, extensive, panmandibular OKC that is only second of its kind mentioned in the literature. INTERVENTION: As a usual treatment protocol, marsupialization was attempted first. Immunohistochemical analysis revealed reduced expression of Ki-67 and B cell lymphoma 2 (bcl-2) markers after marsupialization from 2 separate sites. However, due to incomplete resolution in the lower right anterior region, an aggressive approach was taken by curetting it out surgically along with associated teeth and cortical plate followed by application of Carnoy's solution. OUTCOME: Postsurgery uneventful healing of the lesion was noted on regular follow-up visits with complete resolution at 40 months. The case has been followed for 10 years with no sign of relapse and reoccurrence. CONCLUSIONS: Based on the expression of markers it can thus be concluded that Ki-67 and bcl-2 are site specific and bear strong relationship with the recurrence of OKCs.


Asunto(s)
Enfermedades Mandibulares/diagnóstico por imagen , Enfermedades Mandibulares/cirugía , Quistes Odontogénicos/diagnóstico por imagen , Quistes Odontogénicos/cirugía , Radiografía Dental/métodos , Adulto , Biopsia con Aguja , Operatoria Dental/métodos , Femenino , Estudios de Seguimiento , Humanos , Inmunohistoquímica , Enfermedades Mandibulares/patología , Quistes Odontogénicos/patología , Cuidados Preoperatorios/métodos , Enfermedades Raras , Medición de Riesgo , Índice de Severidad de la Enfermedad , Factores de Tiempo , Resultado del Tratamiento
8.
Presse Med ; 48(10): 1043-1050, 2019 Oct.
Artículo en Francés | MEDLINE | ID: mdl-31706894

RESUMEN

Pregnancy is a particularly risky moment for periodontal and oral healthcare. The main diseases encountered are the development or worsening of carious lesions and gestational periodontal diseases such as gingivitis, epulis or gestational periodontitis. There is a lack of knowledge from health professionals and their patients, firstly on the link between poor oral hygiene and the impact on pregnancy, and secondly on the feasibility of oral care during pregnancy. There is a link between periodontal diseases and the increase of premature delivery risk, child with low birth weight and pre-eclampsia. Periodontal care during pregnancy would lower this risk. However, no link has been highlighted to date between oral care provided during pregnancy and the reduction of premature delivery or even of pre-eclampsia. Loco-regional anaesthesia and taking x-ray images-even dental panoramic radiography-are not contraindicated for pregnant women. All periodontal and oral care can be performed during pregnancy, at all gestational ages.


Asunto(s)
Enfermedades Periodontales/complicaciones , Complicaciones del Embarazo , Contraindicaciones de los Procedimientos , Atención Odontológica , Femenino , Gingivitis/complicaciones , Conocimientos, Actitudes y Práctica en Salud , Humanos , Recién Nacido de Bajo Peso , Recién Nacido , Higiene Bucal , Preeclampsia/etiología , Embarazo , Mujeres Embarazadas , Nacimiento Prematuro/etiología , Radiografía Dental/efectos adversos
9.
Niger J Clin Pract ; 22(11): 1576-1582, 2019 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-31719280

RESUMEN

Aims: To evaluate the diagnostic abilities of near-infrared light transillumination (using the DIAGNOcam) and bitewing radiographs in detecting cavitated proximal carious lesions in primary molars. Subjects and Methods: The study was a cross-sectional analytical, clinical study. The proximal surfaces of primary molars of healthy 5- to 8-year-old children were radiographically screened for the presence of carious lesions in the enamel or outer third of dentin (D1). Two trained and calibrated examiners evaluated the depth of caries in bitewing radiographs and DIAGNOcam images and then verified the presence of cavitation by direct visual examination using the "International Caries Detection and Assessment System" after temporary tooth separation. Results: A total of 236 proximal lesions were included in the study. Most of the clinically cavitated lesions (51.9%) were D1 radiographically and in outer dentin lesions (scores 3 and 4) by the DIAGNOcam (37% and 48.1%, respectively). Although DIAGNOcam showed higher sensitivity (0.852) compared to the radiographs (0.519), it showed slightly less specificity (0.569) compared to the radiographs (0.579). However, DIAGNOcam showed higher value of the area under the curve (AUC = 0.722; P < 0.001) compared to the radiographic method (AUC = 0.561; P = 0.308). Conclusions: The DIAGNOcam showed higher sensitivity and better accuracy than bitewing radiographs in diagnosing cavitated proximal lesions in primary molars and can be generally considered as an alternative to radiographs to detect cavitation without the hazards of ionizing radiation in children.


Asunto(s)
Caries Dental/diagnóstico , Microrradiografía/instrumentación , Microrradiografía/métodos , Radiografía de Mordida Lateral/métodos , Radiografía Dental/métodos , Diente Primario/diagnóstico por imagen , Transiluminación , Niño , Preescolar , Estudios Transversales , Caries Dental/patología , Esmalte Dental/diagnóstico por imagen , Esmalte Dental/patología , Dentina/diagnóstico por imagen , Dentina/patología , Femenino , Humanos , Masculino , Diente Molar/patología , Radiografía Dental Digital , Reproducibilidad de los Resultados , Sensibilidad y Especificidad
10.
Braz Oral Res ; 33(suppl 1): e072, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31576956

RESUMEN

Different surgical treatment strategies for peri-implantitis with the use of graft material and membranes have been suggested without any longitudinal remarkable success rate. The present preliminary study was aimed to analyze a new clinical approach based on the disinfection of the implant connection, the disinfection of the implant surface and GBR approach in the treatment of circumferential and semi-circumferential bony defect resulting from peri-implantitis. Six consecutive patients were selected for the present study. After removal of factors that could potentially influence peri-implant pathology, the prosthetic rehabilitation was always removed and a full thickness flap was elevated to allow access to the peri-implant defect and the exposed implant surface. Once the defect was degranulated and the implant surface cleaned, a mixture (50:50) of autogenous bone and allograft was used. Guided bone regeneration technique using membranes was adopted and the flaps were closed for a submerged healing. Six months thereafter, a new re-opening procedure was performed and cleaned superstructures and crowns were repositioned. Patients were followed for one year thereafter and recalled for a customized oral hygiene every three months. Radiological and periodontal analysis was performed before surgery and every six months. The studied procedure was associated with a pronounced increase in REC and CAL with stable peri-implant conditions at 6 and 12 months. PI, BOP and PD values were significantly reduced both at 6 and 12 months. At 12 months, a mean PD gain of 4.5 mm and a bone loss reduction of 5.1 mm was obtained. Within the limitation of the present preliminary study, the proposed technique might represent a promising result for treatment of circumferential and semi-circumferential bone defects around implants affected by peri-implantitis.


Asunto(s)
Implantes Dentales , Desinfección/métodos , Periimplantitis/cirugía , Regeneración Ósea , Prótesis Anclada al Hueso , Estudios de Seguimiento , Humanos , Periimplantitis/diagnóstico por imagen , Estudios Prospectivos , Radiografía Dental , Reproducibilidad de los Resultados , Estadísticas no Paramétricas , Propiedades de Superficie , Factores de Tiempo , Resultado del Tratamiento
11.
Braz Oral Res ; 33(suppl 1): e074, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31576958

RESUMEN

Most of the literature evaluating dental implants focuses on implant survival, which is a limited proxy for the successful rehabilitation of patients with missing teeth. Success should include not only survival but also lack of mechanical, biological, and esthetics problems. A comprehensive review of local and systemic risk factors prior to implant placement will allow the tailoring of treatment planning and maintenance protocols to the patient's profile in order to achieve longitudinal success of the therapy. This review discusses the role of controlling different risk factors and prevention/treatment of peri-implant mucositis in order to avoid peri-implantitis. Although the literature addressing the topic is still scarce, the existing evidence shows that performing optimal plaque control and regular visits to the dentist seem to be adequate to prevent peri-implant lesions. Due to impossibility of defining a probing depth associate with peri-implant health, radiographic evaluations may be considered in the daily practice. So far, there is a strong evidence linking a past history of periodontal disease to peri-implant lesions, but this is not so evident for other factors including smoking and diabetes. The prevention of biological complications starts even before implant placement and include a broader analysis of the patient risk profile and tailoring the rehabilitation and maintenance protocols accordingly. It should be highlighted that the installation of implants does not modify the patient profile, since it does not modify genetics, microbiology or behavioral habits of any individual.


Asunto(s)
Interfase Hueso-Implante , Implantes Dentales/efectos adversos , Periimplantitis/prevención & control , Periodontitis/prevención & control , Estomatitis/prevención & control , Interfase Hueso-Implante/diagnóstico por imagen , Placa Dental/prevención & control , Humanos , Higiene Bucal , Periimplantitis/etiología , Índice Periodontal , Periodontitis/etiología , Radiografía Dental , Factores de Riesgo , Estomatitis/etiología
12.
Medicine (Baltimore) ; 98(40): e17356, 2019 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-31577730

RESUMEN

Molar-incisor malformation (MIM) is a recently defined dental abnormality of molar root and incisors, and introduced as one of the causes of periapical and periodontal abscess. The purpose of this study was to investigate the clinical and radiological features of MIM, with special emphasis on various medical history. A total of 38 patients with MIM were included in this study. Radiographic features and clinical data, including medical history, chief complaint, associated complications, treatment, and prognosis, were retrospectively investigated. On radiographs, the affected molars showed short, slender, underdeveloped roots and constricted pulp chambers. All affected incisors and canines exhibited dilacerated short roots, wedge-shaped defect on the cervical part of the crown. Complications included periodontal bone loss (52.6%), endodontic lesion (50.0%), and endodontic-periodontal lesion (28.9%). The medical histories of the patients with MIM indicate that almost all (94.7%) were hospitalized due to problems during the neonatal period. MIM may cause various dental problems, such as periapical and periodontal abscess and early loss of the affected teeth. The early diagnosis of MIM on radiographs and appropriate treatment will contribute to a favorable prognosis, especially for young and adolescent patients.


Asunto(s)
Incisivo/diagnóstico por imagen , Incisivo/patología , Diente Molar/diagnóstico por imagen , Diente Molar/patología , Anomalías Dentarias/diagnóstico por imagen , Anomalías Dentarias/patología , Adolescente , Pérdida de Hueso Alveolar/etiología , Niño , Preescolar , Cavidad Pulpar/diagnóstico por imagen , Cavidad Pulpar/patología , Femenino , Humanos , Masculino , Radiografía Dental , Estudios Retrospectivos , Anomalías Dentarias/complicaciones , Anomalías Dentarias/diagnóstico , Raíz del Diente/diagnóstico por imagen , Raíz del Diente/patología , Adulto Joven
13.
Rev. Ciênc. Plur ; 5(2): 161-170, ago. 2019. ilus
Artículo en Portugués | LILACS, BBO - Odontología | ID: biblio-1021784

RESUMEN

Introdução:A intrusão resulta no deslocamento do dente no sentido axial para o interior do osso alveolar, podendo causar injúrias à estrutura periodontal e ao tecido pulpar através do esmagamento e ruptura das fibras do ligamento periodontal e do aporte vascular.Objetivo:abordar a ocorrência de um traumatismo dentário do tipo intrusivo, na dentição decídua, descrevendo aspectos relacionados ao diagnóstico, tratamento e proservação da unidade dentária. Relato de caso:Paciente, quatro anos de idade, gênero feminino, apresentou traumatismo dentário condizente com o diagnóstico de luxação intrusiva, foi estabelecido um tratamento conservador, preservando o elemento dentário no arco até que ocorresse a esfoliação do mesmo. No presente caso, obteve-se um bom prognóstico, visto que foi percebida a reerupção do elemento dentário no período de dois meses.Conclusões:O conhecimento das técnicas de manipulação dos traumatismos dento-alveolares e dos tecidos moles é imprescindível para a realização de um tratamento adequado dessas condições. Desta maneira, é importante o cirurgião-dentista ter habilidades no manejo da criança para um correto diagnóstico, estabelecendo um adequado tratamento, para melhor prognostico da unidade dentária (AU).


Introduction:Intrusion results in axial displacement of the tooth into the alveolar bone and may cause damage to the periodontal structure and pulp tissue by crushing and rupturing the periodontal ligament fibers and vascular input.Objective:To address the occurrence of intrusive dental trauma in the deciduous dentition, describing aspects related to the diagnosis, treatment and proservation of the dental unit. Case report:Patient, four years old, female, had dental trauma consistent with the diagnosis of intrusive dislocation, a conservative treatment was established, preserving the dental element in the arch until exfoliation occurred. In the present case, a good prognosis was obtained, since it was noticed the re-erection of the dental element in the period of two months. Conclusions:The knowledge of the techniques of manipulation of dento-alveolar and soft tissue trauma is essential for the adequate treatment of these conditions. In this way, it is important for the dental surgeon to have skills in the management of the child for a correct diagnosis, establishing an appropriate treatment, for a better prognosis of the dental unit (AU).


Asunto(s)
Humanos , Femenino , Preescolar , Pronóstico , Diente Primario , Radiografía Dental/instrumentación , Traumatismos de los Dientes/etiología , Brasil
14.
Am J Orthod Dentofacial Orthop ; 156(3): 391-400, 2019 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-31474269

RESUMEN

INTRODUCTION: Orthodontic traction of a maxillary impacted canine (MIC) increases the orthodontic treatment time. Therefore, the objective of this study was to evaluate the influence of MIC characteristics and factors associated with orthodontic treatment on the duration of active orthodontic traction. METHODS: This follow-up and retrospective study included 45 MICs orthodontically tractioned into the occlusal plane with the use of a standardized protocol. MIC characteristics, including type, sector, side, location, height, and complexity of impaction, as well as α and ß angles and canine root length and area were measured. Likewise, factors associated with orthodontic treatment, including sex, age, malocclusion, premolar extractions, previous incisor root resorption, ANB, APDI, and SNA angles, and PNS-ANS distance were also evaluated. The statistical analysis included multiple linear regressions to estimate the influence of all variables on the duration of traction (α = 0.05). RESULTS: Sex had significant influence (P = 0.027) on the time of traction; in female patients, the time was 2.05 months more than in male patients. Bilateral impaction treatment increased the time by 2.74 months compared with unilateral cases (P = 0.001). Traction of bicortically centered impacted canines increased the duration of traction by 2.85 months (P = 0.001). Finally, the traction time increased in 2.35 months (P = 0.046) when the impaction sectors were 4 or 5 (close to the midline). CONCLUSIONS: The duration of active orthodontic traction of MIC is mainly influenced by sex, bilateral type, bicortically centered location, or when MIC is located in sector 4 or 5 close to midline, increasing the traction time by some months.


Asunto(s)
Diente Canino/cirugía , Maxilar/cirugía , Ortodoncia Correctiva/métodos , Diente Impactado/complicaciones , Diente Impactado/terapia , Adolescente , Diente Canino/diagnóstico por imagen , Femenino , Estudios de Seguimiento , Humanos , Incisivo , Masculino , Maloclusión/clasificación , Maloclusión/terapia , Maxilar/diagnóstico por imagen , Procedimientos Quirúrgicos Orales , Métodos de Anclaje en Ortodoncia/instrumentación , Métodos de Anclaje en Ortodoncia/métodos , Aparatos Ortodóncicos Fijos , Ortodoncia Correctiva/instrumentación , Planificación de Atención al Paciente , Radiografía Dental , Estudios Retrospectivos , Resorción Radicular/complicaciones , Factores Sexuales , Factores de Tiempo , Erupción Dental , Raíz del Diente/anatomía & histología , Raíz del Diente/diagnóstico por imagen , Diente Impactado/diagnóstico por imagen , Diente Impactado/cirugía , Tracción , Resultado del Tratamiento
15.
BMJ Case Rep ; 12(9)2019 Sep 20.
Artículo en Inglés | MEDLINE | ID: mdl-31540922

RESUMEN

We report a case that illustrates how chronic migraine headaches and multiple dental pathologies caused severe and long-standing cranial pain that affected the quality of life of a man for more than 35 years. His case was investigated at several settings including the neurology outpatient clinic of the hospital without a definitive diagnosis or resolution. After investigations, multiple oral pathologies including two occult dental abscesses were diagnosed. Once both affected teeth and associated abscesses were surgically removed, with subsequent antibiotic therapy the headaches resolved.


Asunto(s)
Antibacterianos/uso terapéutico , Cefalea/diagnóstico , Trastornos Migrañosos/diagnóstico , Absceso Periapical/diagnóstico , Calidad de Vida/psicología , Odontalgia/diagnóstico , Cefalea/etiología , Cefalea/fisiopatología , Cefalea/psicología , Humanos , Masculino , Persona de Mediana Edad , Trastornos Migrañosos/etiología , Trastornos Migrañosos/fisiopatología , Trastornos Migrañosos/psicología , Salud Bucal , Absceso Periapical/complicaciones , Absceso Periapical/fisiopatología , Absceso Periapical/psicología , Radiografía Dental , Factores de Tiempo , Extracción Dental , Odontalgia/complicaciones , Odontalgia/fisiopatología , Odontalgia/psicología , Resultado del Tratamiento
16.
J Craniofac Surg ; 30(5): 1568-1571, 2019 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-31299770

RESUMEN

INTRODUCTION: Lateral cephalometric radiographs (LCR) have been the standard tool used for cephalometric analysis in craniofacial surgery. Over the past decade, a three-dimensional (3D) revolution in cephalometric analysis and surgical planning has been underway. To date, research has not validated whether cephalometric measurements taken from two-dimensional (2D) and 3D data sources are equivalent and interchangeable. The authors sought to compare angular cephalometric measurements taken with 2D and 3D modalities. METHODS: Sixty-two head CT scans (36 females, 26 males) with an average age of 63 ±â€Š20 years were studied. Twelve cephalometric angular measurements were taken from 3D reconstructed skulls using the software package Mimics 19.0 (Materialize; Leuven, Belgium). These same facial angles were measured from 2D lateral cephalograms reconstructed from the original CT scans using Dolphin 11.9. Measurements taken with both techniques were compared for agreement using a paired t test. Intra-class correlation coefficient assessment was used to determine inter-rater reliability. Statistical significance was set at P < 0.05. RESULTS: Five of the 12 angular measurements (SNA, SNB, MP-FH, U1-SN, and U1-L1) demonstrated statistically significant differences (P < 0.05) between the 2D and 3D analyses. All of these differences were less than the standard deviations for the respective measure. CONCLUSION: The differences between angular cephalometric values obtained from 2D LCRs and 3D CT reconstructions are small. This supports the practices of using 2D and 3D cephalometric data interchangeably in most applications. Clinicians must be selective in which measures they employ to maximize accuracy and care must be taken when measuring dental inclination with lateral cephalograms.


Asunto(s)
Cefalometría/métodos , Adulto , Anciano , Anciano de 80 o más Años , Cara , Femenino , Humanos , Imagen Tridimensional/métodos , Masculino , Persona de Mediana Edad , Radiografía Dental , Reproducibilidad de los Resultados , Cráneo/diagnóstico por imagen , Tomografía Computarizada por Rayos X
17.
Am J Orthod Dentofacial Orthop ; 156(1): 13-28.e1, 2019 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-31256826

RESUMEN

The Board of Trustees of the American Association of Orthodontists asked a panel of medical and dental experts in sleep medicine and dental sleep medicine to create a document designed to offer guidance to practicing orthodontists on the suggested role of the specialty of orthodontics in the management of obstructive sleep apnea. This White Paper presents a summary of the Task Force's findings and recommendations.


Asunto(s)
Ortodoncia/métodos , Ortodoncia/normas , Ortodoncistas , Apnea Obstructiva del Sueño/terapia , Academias e Institutos , Humanos , Aparatos Ortodóncicos , Médicos , Polisomnografía/métodos , Prevalencia , Radiografía Dental , Factores de Riesgo , Índice de Severidad de la Enfermedad , Apnea Obstructiva del Sueño/diagnóstico , Apnea Obstructiva del Sueño/epidemiología , Apnea Obstructiva del Sueño/etiología , Cirujanos , Resultado del Tratamiento , Estados Unidos
18.
Dentomaxillofac Radiol ; 48(7): 20180466, 2019 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-31295019

RESUMEN

OBJECTIVES: To evaluate bone repair of an osseous defect in a rat animal model through fractal analysis and radiopacity analysis in radiographic images. METHODS: 120 rats were subjected to extraction of their first molar and divided into four groups (n = 6/group) according to the material used for bone grafting: mineralized bovine bone, demineralized bovine bone (DBB), blood clot (BC - control) or Bio-Oss® (BO). The animals were sacrificed after 1, 7, 14, 21 and 49 days and subjected to radiographic evaluation. For fractal analysis (FA), a square regionof interest of 30 × 30 pixels was used, and radiopacity was measured as the mean gray scale (MGS) value for three points of 5 × 5 pixels in the apical, medial and coronal regions of the defect. Histomorphometric evaluation was realized as the gold standard for bone neo-formation and maturation of the new osseous matrix. RESULTS: Histomorphometric evaluation suggested that DBB showed faster mineralized deposition and resulted in more mature bone at the final time point of evaluation. Mineralized bovine bone and Bio-Oss presented similar results. The mineralized groups did not show significant differences in bone maturation. The radiopacity analysis revealed a significant difference (p < 0.05) between the DBB and blood clot groups at the final time point. FA did not show any significant differences at the final time point. CONCLUSIONS: Mean gray scale seemed to be more effective for the quantification of bone repair than FA in the demineralized group in this animal model. Results for the mineralized groups did not reveal a significant difference, leading to the conclusion that both methods are effective.


Asunto(s)
Materiales Biocompatibles , Huesos , Fractales , Radiografía Dental , Animales , Materiales Biocompatibles/metabolismo , Huesos/diagnóstico por imagen , Bovinos , Modelos Animales , Osteogénesis , Radiografía Dental/métodos , Ratas , Cicatrización de Heridas
19.
Angle Orthod ; 89(6): 889-896, 2019 11.
Artículo en Inglés | MEDLINE | ID: mdl-31282737

RESUMEN

OBJECTIVES: To assess the diagnostic accuracy of two smartphone cephalometric analysis apps compared with Viewbox software. MATERIALS AND METHODS: Pretreatment digital lateral cephalograms of 50 consecutive orthodontic patients (20 males, 30 females; mean age, 19.1 years; SD, 11.7) were traced twice using two apps (ie, CephNinja and OneCeph), with Viewbox used as the gold standard computer software program. Seven angular and two linear measurements, originally derived from Steiner cephalometric analysis, were performed. RESULTS: Regarding validity, intraclass correlation coefficients (ICCs) ranged from .903-.983 and .786-.978 for OneCeph vs Viewbox and CephNinja vs Viewbox, respectively. The ICC values for intratool reliability ranged from .647-.993. None of the CephNinja measurements was below the recommended cutoff values of ICCs for reliability. CONCLUSIONS: OneCeph has a high validity compared with Viewbox, while CephNinja is the best alternative to Viewbox regarding reliability. Smartphone apps may have a great potential in supplementing traditional cephalometric analysis.


Asunto(s)
Cefalometría , Teléfono Inteligente , Programas Informáticos , Adulto , Femenino , Humanos , Masculino , Radiografía Dental , Reproducibilidad de los Resultados , Adulto Joven
20.
Artículo en Inglés | MEDLINE | ID: mdl-31323848

RESUMEN

OBJECTIVE: To describe remodeling of the mesial and distal marginal bone level around platform-switched (PS) and platform-matched (PM) dental implants that were sandblasted with large grit and etched with acid over a three-year period. MATERIALS AND METHODS: Digital periapical radiographs were obtained at the following time-points: during Stage I of the surgical placement of dental implants, before loading, immediately after loading (baseline), and one, three, six, 12, and 36 months after loading for measuring the horizontal and vertical marginal bone levels. RESULTS: Sixty implants were successfully osseointegrated during the overall observation period. Vertical marginal bone levels for the PS and PM dental implants were 0.78 ± 0.77 and 0.98 ± 0.81 mm, respectively, whereas the horizontal marginal bone levels for the PS and PM implants were 0.84 ± 0.45 and 0.98 ± 0.68 mm, respectively. During the time leading up to the procedure until 36 months after the procedure, the average vertical marginal bone level resulted in less bone loss for the PS and PM groups-0.96 ± 1.28 and 0.30 ± 1.15 mm, respectively (p < 0.05). The mean levels of the horizontal marginal bone also showed increases of 0.48 ± 1.01 mm in the PS and 0.37 ± 0.77 mm in the PM groups from the time before loading until 36 months after the procedure. However, these increases were not statistically significant (p > 0.05). CONCLUSION: PS dental implants appeared to be more effective than PM implants for minimizing the mean marginal vertical and horizontal marginal bone loss during the three-year period. Regardless of which abutment connection was used, the dental implant in the present retrospective investigation exhibited minimal marginal bone remodeling, thus indicating long-term stability.


Asunto(s)
Pérdida de Hueso Alveolar/etiología , Prótesis Anclada al Hueso/estadística & datos numéricos , Implantación Dental Endoósea/instrumentación , Implantes Dentales/estadística & datos numéricos , Oseointegración , Adulto , Anciano , Anciano de 80 o más Años , Pérdida de Hueso Alveolar/diagnóstico por imagen , Huesos , Prótesis Anclada al Hueso/efectos adversos , Implantación Dental Endoósea/estadística & datos numéricos , Implantes Dentales/efectos adversos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Radiografía Dental , Estudios Retrospectivos
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