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1.
Braz. j. oral sci ; 20: e211181, jan.-dez. 2021. ilus
Artículo en Inglés | LILACS, BBO - Odontología | ID: biblio-1253155

RESUMEN

Panoramic radiographs are complementary exams to evaluate oral alterations in an early manner, these changes can be dental developmental anomalies, and post-eruption dental disorder. Aim: This study evaluated the findings in panoramic radiographs and correlated the variables of gender and dental location. Methods: A retrospective study was through the observation of 1.111 panoramic radiographs from the Radiology Department in Brazil. It was included patients from 5 to 79 years of age of both gender, and it classified the anomalies in shape, size, and number and post-eruption dental changes in and correlated with gender and location. Patients with syndromes were excluded from the sample. Results: The majority of the sample was composed of fameles 752 (67.7%), as to the frequency of dental developmental anomalies related lesions 684 cases (61.6%) and post-eruption dental disorder 567 (51.8%), in the radiographs. The most prevalent change was endodontic treatment (32.6%), followed by root dilaceration (25.9%), and included tooth (19.5%). The most prevailing alteration when correlated with the gender variables was the cyst root (p<0.01) in females, and orthodontic treatment (p=0.02) in males and the variable location in the mandible was root dilaceration, giroversion, impacted tooth, taurodontia, microdontia, and endodontic treatment (p<0.01). Conclusion: Our findings provide evidence that dental developmental anomalies e post-eruption dental disorder are frequent alterations in the population with particular characteristics of distribution by sex and location


Asunto(s)
Anomalías Dentarias , Radiografía Panorámica , Diagnóstico Bucal
2.
Braz. j. oral sci ; 20: e211236, jan.-dez. 2021. ilus
Artículo en Inglés | LILACS, BBO - Odontología | ID: biblio-1253730

RESUMEN

Aim: Dental imaging has been widely used for diagnosis in dentistry. However, dental X-ray may induce cytotoxicity leading to apoptosis in oral mucosa cells. The present study aimed to observe the maturation pattern of buccal and gingival cells after exposure to X-ray radiation from analog/digital panoramic scanning and cone beam computed tomography (CBCT). Methods: The research samples were 40 subjects who fulfilled the inclusion and exclusion criteria. The subjects were divided into the exposed (patients who received analog/digital panoramic radiography or CBCT) and controlled (patients who had no radiography examinations) groups, with 10 subjects in each group. Exfoliative cytology smears were obtained from buccal mucosa and gingiva before exposure (or on day 0 for the control group) and 10 days later. The cells were stained with the Papanicolaou method. Then, the superficial, intermediate, and parabasal cells were counted in each glass slide. Results: No significant differences (p > 0.05) were observed among all cell types between day 0 and 10 in the control group. Meanwhile, after exposure to three kinds of radiography examinations, the frequency of intermediate cells in buccal mucosa and gingiva increased (p < 0.05), but that of superficial cells decreased (p < 0.05) significantly. No significant difference was found in the parabasal cells (p > 0.05). The frequency differences between intermediate and superficial cells showed no significant difference between the buccal mucosa and gingiva. Conclusion: Analog/digital panoramic radiography and CBCT exposure can induce cytotoxicity by altering the maturation pattern of buccal mucosa cells and gingiva, so it is strongly recommended to only perform these procedures if necessary and avoid repeated exposure to the same patient


Asunto(s)
Humanos , Radiografía Panorámica , Tomografía Computarizada de Haz Cónico , Prueba de Papanicolaou , Encía , Mucosa Bucal
3.
BMC Med Educ ; 21(1): 466, 2021 Sep 01.
Artículo en Inglés | MEDLINE | ID: mdl-34470635

RESUMEN

BACKGROUND: In dentistry, the reporting of panoramic radiographs is particularly challenging, as many structures are depicted in one image and pathologies need to be identified completely. To enhance the learning process for these interpretations, the advantages of the increasingly popular education method of mobile learning could be used. Therefore, this study aimed to determine the effectiveness of learning to report panoramic radiographs using an application (app) on a mobile device. METHODS: The existing e-learning programme 'PantoDict' was further developed into a mobile app with a new training section. Participants of a dental radiology course were divided into two groups, one of which additionally had the chance to practise reporting panoramic radiographs using the app. A test to assess the knowledge gained was conducted at the end of the semester; the course and the app were also evaluated. RESULTS: The group that used the app showed significantly better results in the test than the control group (p < 0.05). Although the app group approved a high satisfaction using the app as an additional supplement to the course, this did not result in a higher overall satisfaction with the course. Further, these students observed that the traditional face-to-face seminar could not be replaced by the app. CONCLUSION: By using the PantoDict app, students were offered better training options for writing reports on panoramic radiographs, which resulted in significantly better test results than the results of the control group. Therefore, the mobile app is a useful supplement to classical education formats within the context of a blended learning approach.


Asunto(s)
Aprendizaje , Aplicaciones Móviles , Educación en Odontología , Humanos , Radiografía Panorámica , Estudiantes , Escritura
4.
JNMA J Nepal Med Assoc ; 59(236): 350-355, 2021 Apr 30.
Artículo en Inglés | MEDLINE | ID: mdl-34508539

RESUMEN

INTRODUCTION: Gonial angle measurements serve as an important parameter of the craniofacial complex and are usually studied on lateral cephalograms, but recently panoramic radiographs have also been used. The aim of this study is to measure the gonial angle using orthopantomogram and lateral cephalogram based on age, gender, ethnicity, and skeletal malocclusion in a tertiary care hospital. METHODS: This is a descriptive cross-sectional study comprising 350 selected radiographs of apparently healthy individuals collected for a period of one year, from the Department of Oral Radiology of a tertiary care centre of Nepal. Gonial angle measurements were recorded from digital panoramic radiograph (both right and left side) and lateral cephalogram. Data was collected in terms of age, gender, ethnicity, and skeletal malocclusion and then statistically analysed using the Statistical Package for the Social Sciences version 20. RESULTS: The mean gonial angle for panoramic right, left and lateral cephalogram was 122.490±7.570, 123.620±7.060, and 124.150±6.910, respectively. There was a decrease in the mean values of the gonial angle observed as age advances seen in all the radiographs. The gonial angle measured in Class III malocclusion was higher in all the radiographs, followed by Class II and Class I. Gonial angles obtained in females were higher than the males in all the radiographs. Finally, the Aryan population showed a higher gonial angle compared to the Mongolian population in all the radiographs. CONCLUSIONS: Panoramic radiograph (left side), could be considered as a reliable tool to measure the gonial angle.


Asunto(s)
Mandíbula , Cefalometría , Estudios Transversales , Femenino , Humanos , Masculino , Radiografía Panorámica , Centros de Atención Terciaria
5.
Pediatr Dent ; 43(4): 307-312, 2021 Jul 15.
Artículo en Inglés | MEDLINE | ID: mdl-34467849

RESUMEN

Purpose: The purpose of this study was to evaluate the association between dental anomalies of the permanent dentition and autism spectrum disorder (ASD). Methods: The dental and medical records and panoramic radiographs of 200 six- to 17-year-old subjects with a diagnosis of ASD were assessed retrospectively. The controls were 200 age- and gender-matched healthy children. The individual counts of shape, number, and positional dental anomalies and the total counts of all anomalies were recorded. Medical comorbidities were defined and documented as two subgroups: ASD subjects with (ASD-C) or without (ASD-NC) comorbidities. Results: Seventy-seven percent of ASD subjects had at least one comorbidity. Sixty-five percent of ASD subjects demonstrated at least one dental anomaly in comparison to controls (53 percent). There were no significant differences for the prevalence of number, shape, positional, or total anomalies between control, ASD-C, or ASD-NC groups. The ASD-NC group had a significantly higher proportion of pyramidal molars (P=0.02) and ectopically erupting teeth (P=0.04) when compared to controls. Conclusions: There were no significant differences in prevalence for shape, number, or positional anomalies in the permanent dentition between autism spectrum disorder subjects and healthy controls. The prevalence of pyramidal teeth and ectopic eruption was significantly associated with ASD.


Asunto(s)
Trastorno del Espectro Autista , Anomalías Dentarias , Adolescente , Trastorno del Espectro Autista/complicaciones , Trastorno del Espectro Autista/epidemiología , Niño , Dentición Permanente , Humanos , Prevalencia , Radiografía Panorámica , Estudios Retrospectivos , Anomalías Dentarias/epidemiología
6.
Anticancer Res ; 41(9): 4203-4210, 2021 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-34475039

RESUMEN

AIM: The aim of this review was to evaluate the scientific literature regarding the cytogenetic damage in oral exfoliated cells of adult patients submitted to panoramic X-ray. MATERIALS AND METHODS: An extensive search of the literature was conducted on PubMed, Scopus and Web of Science databases for all studies published until April 2021 using combinations of the following keywords: "panoramic X-ray," "DNA damage," "genetic damage", "genotoxicity", "mutagenicity", cytotoxicity", "buccal cells", "oral mucosa", "tongue", "gingiva", "micronucleus assay", according to the PRISMA guidelines. All clinical studies in English language were included in the study. A total of 10 studies were identified. RESULTS: As expected, the results regarding the cytogenetic damage induced by panoramic X-ray are conflicting. Some authors have demonstrated that panoramic X-ray induces mutagenesis in oral cells, whereas others did not. After reviewing the 10 studies, two were classified as strong, four were considered moderate, and four were considered weak, according to the quality assessment components of the Effective Public Health Practice Project (EPHPP). Meta-analysis data revealed a negative response related to mutagenicity in oral cells by panoramic X-ray. CONCLUSION: Taken together, this review failed to demonstrate the association between micronucleus frequency and panoramic X-ray.


Asunto(s)
Análisis Citogenético/métodos , Mucosa Bucal/química , Radiografía Panorámica/efectos adversos , Daño del ADN , Humanos , Pruebas de Micronúcleos , Mucosa Bucal/efectos de los fármacos , Mutación
7.
Head Face Med ; 17(1): 33, 2021 Aug 14.
Artículo en Inglés | MEDLINE | ID: mdl-34389020

RESUMEN

BACKROUND: This study was designed to analyse the value of preoperative Cone Beam CTs (CBCT) prior to the surgical removal of complex lower third molars. Furthermore, the aim was to assess injuries to the inferior alveolar nerve (IAN) bundle and postoperative neurological disorders depending on the position of the lower third molar and the inferior alveolar nerve bundle. METHODS: In this retrospective examination preoperative Cone Beam CTs and Orthopantomographs (OPT) of 324 patients were analysed concerning the location of the lower third molars in relation to the mandible and the inferior alveolar nerve bundle. Surgery protocols of all patients who underwent the surgical removal of at least one complex lower third molar were analysed concerning patient data, length of surgery, intraoperative haemorrhage, intraoperative exposure of the inferior alveolar nerve bundle, postoperative swelling and postoperative neurological disorders. The data was then compared to data from international studies. RESULTS: In all 324 patients a permanent neurological damage was not found. Temporary neurological damage was recorded in 13 cases (2.6%). A caudal nerve position with no measurable distance to the root of the lower third molar was associated with the highest risk of a temporal neurological damage. A vestibular touching nerve route also correlated with postoperative sensitivity impairment. If a mesioangulation (Winter) or a Pell and Gregory Type IIIC appears in the OPT, risk of neurological damage is at its highest. CONCLUSIONS: Three-dimensional radiographic imaging, in our patient group, does not significantly affect the risk for complications during the surgical removal of complex lower third molars. Therefore, it should only be utilized for risk assessment, especially in cases of symptom-free lower third molars. A preoperative orthopantomogram still can be accepted as standard for radiographic imaging. An intraoperative exposure of the IAN bundle does not necessarily predict simultaneous neurological damage. Exposure of the IAN bundle is no indication for a discontinuation of the surgery.


Asunto(s)
Diente Impactado , Traumatismos del Nervio Trigémino , Tomografía Computarizada de Haz Cónico , Humanos , Mandíbula/diagnóstico por imagen , Mandíbula/cirugía , Nervio Mandibular/diagnóstico por imagen , Tercer Molar/diagnóstico por imagen , Tercer Molar/cirugía , Radiografía Panorámica , Estudios Retrospectivos , Extracción Dental/efectos adversos , Diente Impactado/diagnóstico por imagen , Diente Impactado/cirugía , Traumatismos del Nervio Trigémino/prevención & control
8.
Pol Merkur Lekarski ; 49(292): 286-289, 2021 Aug 16.
Artículo en Inglés | MEDLINE | ID: mdl-34464370

RESUMEN

AIM: The aim of the study was to assess bone resorption in patients with chronic generalized periodontitis according to orthopantomogram (OP) and cone-beam computed tomography (CBCT) and substantiate which of these methods is the most appropriate for use. MATERIALS AND METHODS: In order to compare the objectivity of the results of examining the periodontal bone tissue by the above methods (panoramic radiography and computed tomography), we analyzed 26 panoramic radiographs and computed tomograms of the same patients, performed on a PICASSO (3D) computed tomograph by «Vatech¼. RESULTS: Comparison of CBCT and OP data in patients with periodontal tissue disease showed a significant difference between the indicators of bone tissue resorption in the mesiodistal direction, and revealed that the volumetric image is significantly objective X-ray picture in periodontal diseases by identifying the state (resorption) of the vestibular and oral cortical plates in any section dentition. At the same time, only according to CBCT data, an objective assessment of bone resorption in the vestibulo-oral direction is likely. CONCLUSIONS: Mesiodistal CT and orthopantomographic data do not match well enough. They allow with high accuracy to identify areas of resorption only from the medial and distal sides. However, the vestibulooral CT projection indicates the bias of a two-dimensional image for obtaining an accurate X-ray picture of the state of the alveolar bone and a complete assessment of bone resorption.


Asunto(s)
Resorción Ósea , Periodontitis , Resorción Ósea/diagnóstico por imagen , Tomografía Computarizada de Haz Cónico , Humanos , Maxilar , Radiografía Panorámica
9.
J Forensic Odontostomatol ; 2(39): 21-31, 2021 Aug 30.
Artículo en Inglés | MEDLINE | ID: mdl-34419942

RESUMEN

In many countries, the 16 years of age threshold is considered to be legally relevant according to the law. This research aims to ascertain the sensitivity and specificity of Olze et al. stages of root pulp visibility (RPV) in a sample of 760 south Indian children aged between 12 and 20 years, with an age threshold of 16 years, using receiver operating characteristic curves and area under the curve (AUC). Spearman's rho correlation showed a strong positive correlation between the RPV stages and age. No significant difference between the right and left lower first molars was seen. RPV Stage 2 showed the highest AUC in both females (0.813) and males (0.790). The performance of the RPV Stage 2 to discriminate the legal age threshold of 16 years resulted in the sensitivity, specificity and accuracy values of 0.61, 0.96 and 0.77 in males, 0.65, 0.97 and 0.80 in females. It resulted in 3.6% and 2.9% of false positives and 38.5% and 34.5% of false negatives in both sexes. Even though, RPV Stage 2 can discriminate reasonably well between two age categories, due to the high percentage of false negatives we recommend its use in conjunction with other age estimation methods.


Asunto(s)
Determinación de la Edad por los Dientes , Adolescente , Adulto , Niño , Pulpa Dental/diagnóstico por imagen , Femenino , Humanos , Masculino , Tercer Molar/diagnóstico por imagen , Radiografía Panorámica , Raíz del Diente/diagnóstico por imagen , Adulto Joven
10.
J Forensic Odontostomatol ; 2(39): 32-37, 2021 Aug 30.
Artículo en Inglés | MEDLINE | ID: mdl-34419943

RESUMEN

The objective of the present study was to analyze the radiographic visibility of the periodontal ligament in completed root formation lower third molars in a sample of lower northern Thai population. Digital panoramic images from 800 patients with ages ranging from 16 to 26 years were used in this study. The visibility status of the periodontal ligament of lower third molars with completed root formation including apical closure was assessed. For each stage, the minimum age, maximum age, median, mean, and standard deviation were calculated. The minimum age found in stage 0 was 16.17 years in males and 17.00 years in females. Stage 1 was first achieved at the age of 16.17 years in males and 17.08 years in females. The earliest onset of stage 2 was 17.00 years in males and 18.17 years in females. The incidence of stage 3 was first observed at 19.17 years in males and 18.83 years in females. It may be concluded that the radiographic visibility of the periodontal ligament in lower third molars may be a useful approach in the dental age assessment in a Thai population. In case the periodontal ligament visibility is found to be in stage 2, it may be confirmed that the individual is at least 18 years of age.


Asunto(s)
Determinación de la Edad por los Dientes , Tercer Molar , Adolescente , Adulto , Femenino , Humanos , Masculino , Tercer Molar/diagnóstico por imagen , Ligamento Periodontal/diagnóstico por imagen , Radiografía Panorámica , Tailandia , Adulto Joven
11.
J Forensic Odontostomatol ; 2(39): 45-57, 2021 Aug 30.
Artículo en Inglés | MEDLINE | ID: mdl-34419945

RESUMEN

OBJECTIVE: To analyze the perspective of using an adapted algorithm for digital images comparison while providing forensic dental identification in complicated fractured skull conditions by ante-mortem and post-mortem radiographical data sets. MATERIALS AND METHODS: Ante-mortem orthopantomogram and post-mortem peri-apical X-ray images were converted in *.jpeg format with their further import into GIMP 2.10 software (The GIMP Development Team). Segmentation of OPG-image was provided in topographical projections of jaw segments obtained directly from the victim. Comparison of analyzed image segments was provided manually within GIMP 2.10 software using functions of "Layers" and "Opacity" through the proposed algorithm. RESULTS: Considering the fact that 20 positive concordant dental identifiers overall were verified during comparison of AM and PM X-ray datasets, we can conclude that odontological identity was established. All above-mentioned discrepancies could be classified as explainable. Inter-agreement rate between two investigators considering correspondence between AM and PM datasets reached Cohen's kappa level which is equal to 0,97, while positive 100% agreement was reached considering 21 out of 24 analyzed characteristics. CONCLUSION: Available AM and PM radiographical datasets represent a sufficient information for effective forensic dental identification, even if such were obtained by different roentgenological techniques (orthopantomography and periapical radiography). Using of an adapted algorithm for digital images comparison with forensic dental purposes could potentially overcome cognitive bias and observer's effect, speed up the process of analysis and increase the accuracy and inter-agreement rate while referencing AM and PM datasets.


Asunto(s)
Odontología Forense , Medicina Legal , Algoritmos , Humanos , Radiografía Panorámica , Cráneo/diagnóstico por imagen
12.
Stomatologiia (Mosk) ; 100(4): 68-71, 2021.
Artículo en Ruso | MEDLINE | ID: mdl-34357731

RESUMEN

THE AIM OF THE STUDY: Was to assess dental age and the frequency of dental extractions in children with epidermolysis bullosa (EB) compared to controls. MATERIALS AND METHODS: The study comprised 22 EB children (8 boys and 14 girls aged 4-16 years, mean age 11.1±3.5 years) and 25 healthy children (9 boys and 16 girls aged 4-14 years, mean age 10.1±2.4 years). Dental age was measured on panoramic X-ray by Demirjian method and then compared to child's physical age to estimate retardation or advance in dental maturity. RESULTS: Only in 5 from 22 EB children dental age corresponded to physical age, there was dental age retardation in 7 patients (13 to 68 months, 27±21.5 months in average), but in 10 dental age exceeded physical (4 to 21 months, 12.9±7.8 months in average). In controls where was only one boy with dental age retardation by 18 months, in 7 children dental age corresponded to physical, in 17 dental age advance by 5-45 months (16.0±11.0 months in average) was revealed. Conclusion. Possible dental age retardation in EB patients should be considered when undertaking dental extractions for orthodontic reasons. For more precise orthodontic treatment timing further studies are needed to correlate dental age, skeletal age and BMI in children with EB.


Asunto(s)
Epidermólisis Ampollosa , Adolescente , Niño , Preescolar , Femenino , Humanos , Lactante , Masculino , Radiografía Panorámica
13.
J Dent Child (Chic) ; 88(2): 114-119, 2021 May 15.
Artículo en Inglés | MEDLINE | ID: mdl-34321143

RESUMEN

Purpose: Dental development is delayed in individuals born with oral clefts. The purpose of this study was to determine: (1) the proportion of individuals with severe delays in dental maturation; and (2) if there are different patterns of dental development timing, taking into consideration the chronological age of the individual.
Methods: Dental maturation was estimated by the Demirjian method in children aged seven to 12 years with and without clefts. The differences between dental age and chronological age between groups were compared using the Mann-Whitney test, with an alpha of 0.05. A subset of 50 individuals in each group had at least two panoramic radiographs at least two years apart. These were analyzed to determine dental maturation trajectories in comparison with chronological age to identify individuals with different patterns of development.
Results: The sample consisted of 201 children with oral clefts and 201 without clefts. Individuals born with clefts had, on average, two months of delay in dental maturation compared to those without a cleft. Five patterns of differences were identified between dental and chronological age. These distributions were statistically significant statistically (P <0.001).
Conclusion: Children born with cleft lip and palate have delayed tooth maturation and a high frequency of greater delays in tooth maturation over time compared to individuals born without clefts.


Asunto(s)
Labio Leporino , Fisura del Paladar , Niño , Labio Leporino/diagnóstico por imagen , Fisura del Paladar/diagnóstico por imagen , Humanos , Radiografía Panorámica
14.
Arch Oral Biol ; 129: 105206, 2021 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-34224960

RESUMEN

OBJECTIVE: To perform a phenotypic characterization of the dento-osseous anomalies in a Brazilian family with Familial Adenomatous Polyposis (FAP) and to investigate the adenomatous polyposis coli (APC) causative variant. DESIGN: The study included a family of 14 individuals (Group A: affected; Group B: non-affected). The frequency of radiographic findings in both groups was evaluated according to the Dental Panoramic Radiograph Score (DPRS) diagnostic method. The accuracy and reproducibility of DPRS were tested. The DNA was isolated from the index patient's saliva and submitted to whole-exome and Sanger sequencing approach. RESULTS: DPRS ≥ 7 was observed in 80 % of Group A but in none of Group B. The most common findings in Group A were dense bone islands (60 %), hazy sclerosis (40 %), osteomas (40 %), and supernumerary tooth (20 %). DPRS has proved to be a reliable method while DPRS ≥ 5 and DPRS ≥ 7 were taken as positive for FAP, and reproducible diagnosis test considering that the evaluators correctly identified the affected patients (Kappa agreement>0.8, p = 0.002). A nonsense heterozygous mutation in the APC gene (c.1370C > G; p.Ser457*) of the index case was detected. CONCLUSION: FAP patients have a higher frequency of dento-osseous anomalies (p = 0.005). Bone abnormalities were more prevalent than dental anomalies (p = 0.001). Thus, FAP patients should be referred for dental examination and genetic counseling to perform early diagnosis of dento-osseous anomalies and evaluate the implications of the molecular findings in each particular family.


Asunto(s)
Poliposis Adenomatosa del Colon , Diente Supernumerario , Poliposis Adenomatosa del Colon/diagnóstico por imagen , Poliposis Adenomatosa del Colon/genética , ADN , Humanos , Radiografía Panorámica , Reproducibilidad de los Resultados , Diente Supernumerario/diagnóstico por imagen , Diente Supernumerario/genética
15.
Clin Oral Investig ; 25(8): 4721-4733, 2021 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-34275000

RESUMEN

OBJECTIVES: The aim of this study is to verify whether the diagnostic accuracy of cone beam computed tomography (CBCT) is superior to panoramic radiography (PR) in predicting inferior alveolar nerve (IAN) exposure during the lower third molar extraction. MATERIALS AND METHODS: Eight electronic databases were searched up to September 2020. Studies that evaluated the accuracy (sensitivity, specificity, positive-predictive value, and negative predictive value) of both imaging methods were included. The gold standard was the visualization of the IAN exposure during the extraction of lower third molars. The gray literature was also used to include any other paper that might meet the eligibility criteria. The meta-analysis was performed with OpenMeta-Analyst and ReviewManager v.5.3 software. The methodology of the studies was evaluated using QUADAS-2. RESULTS: Among the search, three studies met all the eligibility criteria and were included in the qualitative and quantitative synthesis. The meta-analysis was conducted with all included studies. Accuracy values for CBCT were 95.1% for sensitivity (p=0.666) and 64.4% for specificity (p<0.001). For PR sensitivity and specificity, we observed 73.9% (p=0.101) and 24.8% (p<0.001), respectively. CONCLUSIONS: Both exams were reliable for detecting positive cases of exposure of the IAN. However, CBCT had a better performance compared to PT in predicting IAN exposure during surgery. CLINICAL RELEVANCE: To better understand the CBCT accuracy in predicting the IAN exposure during surgery, since this event can increase the likelihood of IAN injury and, consequently, cause neurosensory disturbances.


Asunto(s)
Tomografía Computarizada de Haz Cónico Espiral , Diente Impactado , Traumatismos del Nervio Trigémino , Tomografía Computarizada de Haz Cónico , Humanos , Mandíbula/diagnóstico por imagen , Nervio Mandibular/diagnóstico por imagen , Tercer Molar/diagnóstico por imagen , Tercer Molar/cirugía , Radiografía Panorámica , Extracción Dental
16.
BMC Oral Health ; 21(1): 341, 2021 07 13.
Artículo en Inglés | MEDLINE | ID: mdl-34256760

RESUMEN

BACKGROUND: The aims of this study were to create a method for estimation of dental age in Saudi children and adolescents based on the Willems model developed using the Belgian Caucasian (BC) reference data and to compare the ability of the two models to predict age in Saudi children. METHODS: Development of the seven lower left permanent mandibular teeth was staged in 1146 panoramic radiographs from healthy Saudi children (605 male, 541 female) without missing permanent teeth and without all permanent teeth fully developed (except third molars). The data were used to validate the Willems BC model and to construct a Saudi Arabian-specific (Willems SA) model. The mean error, mean absolute error, and root mean square error obtained from both validations were compared to quantify the variance in errors in the sample. RESULTS: The overall mean error for the Willems SA method was 0.023 years (standard deviation, ± 0.55), indicating no systematic underestimation or overestimation of age. For girls, the error using the Willems SA method was significantly lower but still negligible at 0.06 years. A small but statistically significant difference in total mean absolute error (11 days) was found between the Willems BC and Willems SA models when the data were compared independent of sex. The overall mean absolute error for girls was slightly lower for the Willems BC method than for the Willems SA method (1.33 years vs. 1.37 years). CONCLUSIONS: The difference in ability to predict dental age between the Willems BC and Willems SA methods is very small, indicating that the data from the BC population can be used as a reference in the Saudi population.


Asunto(s)
Determinación de la Edad por los Dientes , Diente , Adolescente , Bélgica , Niño , Femenino , Humanos , Masculino , Tercer Molar , Radiografía Panorámica , Arabia Saudita
17.
J Contemp Dent Pract ; 22(2): 166-171, 2021 Feb 01.
Artículo en Inglés | MEDLINE | ID: mdl-34257177

RESUMEN

AIM: To assess the influence of gender and age on different parameters of alveolar bone loss using orthopantomogram. MATERIALS AND METHODS: Eighty subjects were enrolled in the study (20 dentulous and 60 completely edentulous), fulfilling the inclusion and exclusion criteria. Completely edentulous subjects were divided into four groups (15 males and 15 females above 60 years) and (15 males and 15 females below 60 years). Dentulous group comprised 20 subjects (10 males and 10 females) between 41 and 75 years. After taking panoramic radiographs, vertical as well as horizontal reference lines were drawn. The parameters used for evaluation included mandibular cortical index (MCI), inferior mandibular cortical width (MCW), panoramic mandibular index (PMI), alveolar bone loss (ABL), and height of bone at first premolar (Hp) and first molar (Hm) of the mandible. RESULTS: There was significant association between MCI and age for females with C2 and C3 categories being more common with advancing age. MCW was stable in all groups, except in females above 60 years of age. PMI and ABL were nonsignificant for age and gender. Although the average values of bone height (Hm and Hp) for males were higher than those of females, the results were statistically insignificant. CONCLUSION: Panoramic radiographic measurements could provide much valuable information and could help in evaluating patients with a low bone mineral density (BMD) with a few limitations. CLINICAL SIGNIFICANCE: Dental professionals could screen the patients through panoramic radiographs taken during routine clinical examination, which could help in identifying patients with a low BMD so that further treatment could be initiated early and thus to prevent a pathologic fracture.


Asunto(s)
Densidad Ósea , Osteoporosis , Femenino , Humanos , India , Masculino , Mandíbula/diagnóstico por imagen , Osteoporosis/diagnóstico por imagen , Radiografía Panorámica
18.
Eur J Oral Sci ; 129(4): e12796, 2021 08.
Artículo en Inglés | MEDLINE | ID: mdl-34096093

RESUMEN

The aim was to investigate the objective and choice of different radiographic examinations used in orthodontic treatment of children and adolescents, using a web-based questionnaire directed toward specialists in orthodontics. The questionnaire was distributed to 255 orthodontists in Sweden. In total, 142 responses were received, and 11 specialists were interviewed. Questions were related to the use of radiography during different treatment stages; modifications to the treatment regimen owing to radiographic findings; and the use of and/or need for guidelines in radiography. Radiographic examinations were performed in all treatment stages and mainly during treatment planning. Panoramic radiographs were always or often used by the respondents (99%), less frequently used were lateral radiographs (66%) and intra-oral radiographs of the incisor regions (69%). Cone beam computed tomography (CBCT) was sparsely employed. A majority of the respondents considered that radiographic findings often or occasionally affected the treatment. Local- or clinic-specific guidelines were used by 85% of respondents. The need for national guidelines was considered low. The frequent use of panoramic radiography together with application of local guidelines, may indicate that radiographic selection criteria are not individualised. National guidelines might facilitate updates on radiographic techniques, and on radiation doses and risks in young patients.


Asunto(s)
Tomografía Computarizada de Haz Cónico , Incisivo , Adolescente , Niño , Humanos , Radiografía Panorámica , Encuestas y Cuestionarios , Suecia
19.
Injury ; 52(9): 2616-2624, 2021 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-34103150

RESUMEN

OBJECTIVES: To assess the diagnostic accuracy of physical examination findings used to identify patients at risk for midfacial or mandibular fractures. MATERIALS AND METHODS: A five-year retrospective cohort was constructed from all emergency department patients with a midfacial or mandibular trauma. The sensitivity, specificity, pre-test probability, positive predictive value, negative predictive value, positive likelihood ratio and negative likelihood ratio data was calculated for 19 and 14 physical examination findings for midfacial and mandibular fractures respectively. Computed Tomography and panoramic radiography were used as index tests. RESULTS: A total of 1484 patients were identified among whom 40.4% midfacial and 33.4% mandibular fractures were diagnosed. Overall, specificity was found to be higher than sensitivity. Regarding midfacial fractures, high specificity was found for raccoon eyes, malar eminence flattening and all the findings that are related to palpation, the nasal, ocular and intra-oral assessment. Malar eminence flattening, external nasal deformity, nasal septum hematoma, change of globe position and palpable step-off had ad high positive predictive value and positive likelihood ratio. Regarding mandibular fractures high specificity was found for mouth opening restriction, auditory canal bleeding, intra-oral assessment related findings, palpable step-off, inferior alveolar nerve paresthesia, the angular compression test and chin axial pressure test. CONCLUSIONS: The diagnostic accuracy of relevant physical examination findings were identified for the prediction of midfacial and mandibular fractures.


Asunto(s)
Fracturas Mandibulares , Humanos , Fracturas Mandibulares/diagnóstico por imagen , Examen Físico , Valor Predictivo de las Pruebas , Radiografía Panorámica , Estudios Retrospectivos
20.
Head Face Med ; 17(1): 19, 2021 Jun 09.
Artículo en Inglés | MEDLINE | ID: mdl-34107989

RESUMEN

BACKGROUND: To develop and cross-validate site-specific panoramic radiography (PAN) analysis prediction equations of implant-to-mandibular canal dimensions (IMCD) in mandibular regions posterior to the mental foramen, and to help determine in which instances CBCT technology will be a justified adjunct in clinical practice. METHODS: IMCD by PAN (Pan-D) from implant site-specific regions (first premolar, second premolar, first molar, and second molar sites) were collected from 40- to 70-year-old adolescents. They were randomly assigned to validation (n = 144) and cross-validation (n = 148) groups. The cone-beam computed tomography (CBCT) technique was used as the criterion method for the estimation of IMCD (CBCT-D). The PAN analysis equations were developed using stepwise multiple regression analysis and cross-validated using the Bland-Altman approach. RESULTS: There was a significant relationship between PAN-D and CBCT-D for both validation (R2 = 57.8 %; p < .001) and cross-validation groups (R2 = 52.5 %; p < .001). Root means-squared error (RMSE) and pure error (PE) were highest for the first molar (RMSE = 1.116 mm, PE = 1.01 mm) and the second molar region (RMSE = 1.162 mm, PE = 1.11 mm). CONCLUSIONS: PAN-D has the potential to be developed as an indirect measure of IMCD. However, the findings suggest to exclude scoring of the first and second molars when assessing IMCD via PAN. Use of CBCT may be justified for all IMCD estimations in the first and second molars regions. TRIAL REGISTRATION: This study has been registered and approved by the Ethics Committee of the Martin-Luther University, Halle, Germany (2020-034).


Asunto(s)
Implantes Dentales , Adolescente , Adulto , Anciano , Tomografía Computarizada de Haz Cónico , Alemania , Humanos , Mandíbula/diagnóstico por imagen , Persona de Mediana Edad , Tercer Molar , Radiografía Panorámica
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