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2.
Prog Orthod ; 22(1): 3, 2021 Jan 18.
Artículo en Inglés | MEDLINE | ID: mdl-33458787

RESUMEN

BACKGROUND: Patient quality of life (QoL) during orthodontic treatment is an important consideration that requires greater academic investigation as greater focus is placed on enhancing patient experience. Quality of life (QoL) was assessed in three orthodontic appliance groups, i.e., vestibular, lingual, and aligners during the initial stages of treatment. The sample was comprised of 117 adult patient-subjects distributed into 3 groups: vestibular (n = 41), lingual (n = 37), and aligner (n = 39). A WHOQOL-BREF questionnaire surveyed four domains (physical health, psychological health, social relationships, and environment). RESULTS: Mean scores for domain 1, physical health, showed that the aligner group (28.1) had significantly greater scores than that of the vestibular (22.7) or lingual (22) groups. Domain 2, psychological health, demonstrated significant differences (P < 0.001) between all groups, with the aligner group scoring the highest (23.2), followed by the lingual (18.4) and vestibular (15.2) groups. Domain 3, social relationship, showed that aligner (10.9) and lingual (10.2) scores were significantly greater (P < 0.001) than those of the vestibular group (7.8). Domain 4, environment, displayed significant differences between all groups, with the aligner group scoring highest (32.1), followed by the lingual group (29.3), and lastly the vestibular group (26.4). Overall, the highest mean score was obtained by the aligner group (23.1) and the lowest mean score was by the vestibular group (18). The mean domain scores for all three groups were significantly different (P ≤ 0.005) from each other (Table 2). CONCLUSIONS: Overall, patients undergoing Aligner therapy reported the overall highest QoL scores, followed by lingual and vestibular groups.


Asunto(s)
Aparatos Ortodóncicos , Calidad de Vida , Adulto , Humanos , Diseño de Aparato Ortodóncico , Encuestas y Cuestionarios
3.
Monogr Oral Sci ; 29: 201-213, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33427218

RESUMEN

Dental biofilms can cause major oral diseases like gingivitis, periodontitis, and caries. Orthodontic appliances promote supra- and subgingival biofilm accumulation, alter the oral microbiome, and hamper oral hygiene. Orthodontic treatment can be associated with adverse effects, such as enamel decalcification, gingivitis, and periodontal disease. The aim of this review is to summarize the changes in supra- and subgingival biofilm and periodontal tissues during and after orthodontic treatment. Studies have reported elevated levels of Streptococcus mutans and periodontopathogenic bacteria in patients undergoing orthodontic treatment. In general, the microbial changes and periodontal parameters decreased to pretreatment levels after appliance removal. Nevertheless, some adverse effects associated with orthodontic treatment are not reversible, such as enamel decalcifications caused by metabolic products of high levels of cariogenic bacteria. The evidence suggests that the roughness and constituents of the orthodontic materials influence the bacterial colonization. Therefore, several antibacterial orthodontic bonding systems, which show antibacterial effects in vitro, have been developed. The importance of adequate oral hygiene should be emphasized to all orthodontic patients. They should be frequently reminded and motivated to obtain a good oral hygiene. The evidence from the current literature suggests the safest way for orthodontic treatment in periodontally diseased patients may be after successful completion of the periodontal therapy. However, the exact time point needs to be better clarified in future studies.


Asunto(s)
Caries Dental , Gingivitis , Biopelículas , Caries Dental/terapia , Humanos , Aparatos Ortodóncicos/efectos adversos , Streptococcus mutans
4.
Niger J Clin Pract ; 24(1): 1-7, 2021 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-33473018

RESUMEN

In the domain of orthodontics, plaster models are contemplated as one of the important tools for diagnosis and treatment planning. In Dentistry, technological advancement has developed in the section of diagnostic devices, for example, the utilization of a 3D intraoral scanner, which can convert plaster models into digital models. With in-office utilization of this system, orthodontists can more meticulously and precisely construct custom braces, clear aligners, and orthodontic appliances. The digital data can be stored as a stereolithography file; it eliminates the disadvantages encountered with the storage of plaster models like breakage, space required, and distortion of the plaster models. ITero®element is the intraoral laser scanner (ILS) which utilizes parallel confocal scanning technology which maximizes the accuracy of the scan. By utilizing the iTero scanner, the dental measurement can be performed in OrthoCADTM software which is highly accurate. The objective of the contemporary study is to review the literature of studies on in-vivo and ex-vivo scanning with the iTero system.


Asunto(s)
Imagenología Tridimensional , Ortodoncia , Diseño Asistido por Computadora , Técnica de Impresión Dental , Modelos Dentales , Humanos , Aparatos Ortodóncicos , Cintigrafía
5.
Ned Tijdschr Tandheelkd ; 127(12): 699-704, 2020 Dec.
Artículo en Holandés | MEDLINE | ID: mdl-33367297

RESUMEN

One of the main disadvantages of orthodontic treatment with fixed appliances is the formation of demineralisations around the brackets. These demineralisations develop because the brackets produce an increased number of plaque retention sites and a change in the oral environment, resulting in a different plaque composition. To prevent the formation of these demineralisations several methods are used during orthodontic treatment. Using additional fluoride is the best solution, for example, rinsing daily with a fluoride mouthwash, applying a fluoride varnish during every scheduled check-up, or using toothpaste with a high concentration of fluoride. The last 2 methods are less effectively incorporated in daily practice in the Netherlands due to financial or time factors. Additional measures, like using fluoride-releasing adhesives, CPP-ACP(F) or a chlorhexidine rinse appear to be less effective in reducing demineralisations. It is also important to provide specific oral hygiene and dietary instructions, based on an individual risk assessment.


Asunto(s)
Cariostáticos , Caries Dental , Caries Dental/etiología , Caries Dental/prevención & control , Fluoruros , Humanos , Países Bajos , Aparatos Ortodóncicos/efectos adversos , Aparatos Ortodóncicos Fijos
6.
Medicine (Baltimore) ; 99(50): e23165, 2020 Dec 11.
Artículo en Inglés | MEDLINE | ID: mdl-33327234

RESUMEN

BACKGROUND: Although several researchers have analyzed the dental identity of patients experience with corrective methods using fixed and removable appliances, the consequences stay debatable. This meta-analysis intended to verify whether the periodontal status of removable appliances is similar to that of the conventional fixed appliances. METHODS: Relevant literature was retrieved from the database of Cochrane library, PubMed, EMBASE, and CNKI until December 2019, without time or language restrictions. Comparative clinical studies assessing periodontal conditions between removable appliances and fixed appliances were included for analysis. The data was analyzed using the Stata 12.0 software. RESULTS: A total of 13 articles involving 598 subjects were selected for this meta-analysis. We found that the plaque index (PLI) identity of the removable appliances group was significantly lower compared to the fixed appliances group at 3 months (OR = -0.57, 95% CI: -0.98 to -0.16, P = .006) and 6 months (OR = -1.10, 95% CI: -1.60 to -0.61, P = .000). The gingival index (GI) of the removable appliances group was lower at 6 months (OR = -1.14, 95% CI: -1.95 to -0.34, P = .005), but the difference was not statistically significant at 3 months (OR = -0.20, 95% CI: -0.50 to 0.10, P = .185) when compared with that of the fixed appliances group. The sulcus probing depth (SPD) of the removable appliances group was lower compared to the fixed appliances group at 3 months (OR = -0.26, 95% CI: -0.52 to -0.01, P = .047) and 6 months (OR = -0.42, 95% CI: -0.83 to -0.01, P = .045). The shape of the funnel plot was symmetrical, indicating no obvious publication bias in the Begg test (P = .174); the Egger test also indicated no obvious publication bias (P = .1). CONCLUSION: Our meta-analysis demonstrated that malocclusion patients treated with the removable appliances demonstrated a better periodontal status as compared with those treated with fixed orthodontic appliances. However, the analyses of more numbers of clinical trials are warranted to confirm this conclusion.


Asunto(s)
Maloclusión/terapia , Aparatos Ortodóncicos Fijos/efectos adversos , Aparatos Ortodóncicos Removibles/efectos adversos , Enfermedades Periodontales/etiología , Adolescente , Adulto , Niño , Femenino , Humanos , Masculino , Maloclusión/clasificación , Maloclusión/diagnóstico , Persona de Mediana Edad , Diseño de Aparato Ortodóncico/tendencias , Aparatos Ortodóncicos/provisión & distribución , Evaluación de Resultado en la Atención de Salud , Enfermedades Periodontales/epidemiología , Índice Periodontal , Ensayos Clínicos Controlados Aleatorios como Asunto
7.
Niger J Clin Pract ; 23(10): 1395-1400, 2020 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-33047696

RESUMEN

Objective: To investigate of effects of using phase-contrast video technique on education in oral hygiene training. This one blind, parallel randomized controlled trial was conducted in a tertiary clinic. Fifty-three patients who presented to the orthodontics department aged 12-20 years were divided into two groups randomly by computer-generated assigned codes to receive oral hygiene education. The participants were blinded to type of education method. Before orthodontic therapy, the control group was trained only by the conventional method, while the test group was trained by phase-contrast video microscopy method in addition to conventional method. Some images and videos of moving microorganisms in dental plaque were shown to the patients in test group on a computer monitor. Subjects and Methods: The bacterial count, plaque index, and gingival index scores were compared. Measurements were obtained in baseline and follow-ups which were repeated with 1-month intervals after the training. Results: The plaque index scores (1.05 ± 0.1 vs. 1.43 ± 0.2; P < 0.001) and gingival index scores (0.90 ± 0.1 vs. 1.14 ± 0.2; P < 0.001) in test group was statistically lower than those in control group at the end of the study. The gingival index scores reduced by 39% in test group vs. 14% in control group. The number of bacteria significantly decreased in the group trained with phase-contrast video microscope technique (8,059,133 ± 3016 vs. 10,830,600 ± 4919; 0.018). Conclusions: The training with phase-contrast microscopy has a more positive effect than the traditional method in oral hygiene education.


Asunto(s)
Placa Dental/prevención & control , Microscopía de Contraste de Fase/métodos , Microscopía por Video , Higiene Bucal , Ortodoncia , Educación del Paciente como Asunto/métodos , Cepillado Dental/instrumentación , Adolescente , Bacterias , Niño , Atención Odontológica , Placa Dental/etiología , Índice de Placa Dental , Femenino , Humanos , Masculino , Aparatos Ortodóncicos , Método Simple Ciego , Adulto Joven
8.
Stomatologiia (Mosk) ; 99(5): 58-61, 2020.
Artículo en Ruso | MEDLINE | ID: mdl-33034178

RESUMEN

Congenital malformations of the maxillofacial region are significant, not completely decisive, medical and social problems. Recent literature data indicate a trend towards improvement. PURPOSE OF THE STUDY: Improving the effectiveness of treatment of children with bilateral orthodontic and surgical training. MATERIAL AND METHODS: Under the supervision were 80 children with cleft lip and palate, with an age of up to 3 years. Of these 56 patients, 28 patients are the 2nd group prepared for surgery according to the developed technique. RESULTS: Preoperative orthodontic preparation of 28 children with bilateral cleft and an indicator that 22 (78.6%) patients should not have fully achieved results between the interhuman and fragmentary alveolar process of the upper jaw. In the second group of patients, 27 (96.4%) patients showed a normal ratio of the intermaxillary bone and lateral fragments. CONCLUSION: The use of the developed orthodontic design with active elements and mini implants in 96.4% of cases requires the presence of pre-spiral orthodontic preparation, normalization of the position of the intercellular bone and shape, followed by primary chelorinoplastics and in relation to additional uranoplastics, as well as the periodic stages of rehabilitation of patients with bilateral cleft lip and achieved thereby a stable aesthetic and functional result.


Asunto(s)
Labio Leporino , Fisura del Paladar , Implantes Dentales , Niño , Labio Leporino/cirugía , Fisura del Paladar/cirugía , Humanos , Aparatos Ortodóncicos
10.
J Oleo Sci ; 69(9): 1051-1059, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32879196

RESUMEN

By modulating the metal centers to adjust the coordination surroundings of the products, two mixed-linker coordination polymers [Cu2(L)(biz)(OH)]·H2O (1) and [Zn(HL)(biz)] (2) (H3L = 5-(4-carboxybenzyloxy)isophthalic acid, biz = benzimidazole), have been produced under mild hydrothermal conditions. To develop new candidates for the acute oral mucositis during orthodontic process, the acute oral mucositis rat model was constructed and the enzyme linked immunosorbent assay (ELISA) was used to find out the release levels of inflammatory cytokines Tumor Necrosis Factor-α (TNF-α) and Interleukin-1ß (IL-1ß). Next, the activation of the AKT signaling pathway was estimated through judging the relative expression of the inflammatory genes in the oral mucosa cells via reverse transcription-polymerase chain reaction (RT-PCR). After compounds treatment, the expression level of the AKT signaling pathway was evaluated by a western blot. Finally, the quantity of the reactive oxygen species (ROS) in the oral mucosa cells was gauged with ROS detection kit. All the results in this research indicated the much more excellent treatment activity of compound 1 than 2 on the acute oral mucositis.


Asunto(s)
Ligandos , Mucosa Bucal/metabolismo , Aparatos Ortodóncicos/efectos adversos , Polímeros/síntesis química , Polímeros/uso terapéutico , Estomatitis/tratamiento farmacológico , Estomatitis/genética , Enfermedad Aguda , Animales , Modelos Animales de Enfermedad , Ensayo de Inmunoadsorción Enzimática , Expresión Génica , Inflamación , Mediadores de Inflamación/metabolismo , Interleucina-1beta/genética , Interleucina-1beta/metabolismo , Polímeros/farmacología , Ratas , Especies Reactivas de Oxígeno/metabolismo , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Estomatitis/etiología , Estomatitis/metabolismo , Relación Estructura-Actividad , Factor de Necrosis Tumoral alfa/genética , Factor de Necrosis Tumoral alfa/metabolismo
11.
Minerva Stomatol ; 69(4): 245-250, 2020 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-32945633

RESUMEN

BACKGROUND: Orthodontic appliances (ligatures, braces, wires, etc.), are one of the main sources of trauma in the oral cavity. Friction between brackets and mucosa is a kind of chronic trauma that may cause buccal mucosal proliferation and ulceration and is one of the most common complaints of patients during orthodontic treatment. The aim of this study was to evaluate the changes of the lower lip epithelial cells after the removal of orthodontic fixed appliances. METHODS: Cells of lower lip oral mucosa of 31 orthodontic patients were collected by exfoliative cytology in three times: immediately (T0), 30(T1) and 60 (T2) days after debonding. Nuclear (NA) and cytoplasmic (CA) areas, NA/CA ratio, cell morphology and cellularity of smears were evaluated using cytomorphometric and cytomorphologic methods. Friedman test followed by the Wilcoxon test was used to compare the NA, CA and NA/CA values in three different times. Cell morphology and cellularity were analyzed by the Chi-square test. All statistical tests were performed with SPSS version 20. RESULTS: The NA and CA values increased significantly (P<0.001) after the removal of friction and irritation of orthodontic appliances in T1 and T2 and reached their highest level in T2. The NA/CA values did not change significantly (P=0.25). Class I smears, according to Papanicolaou classification, were observed in T0, T1, and T2. Superficial epithelial cells were predominant cell types in the lower incisor region in all times without statistically significant difference in three intervals. CONCLUSIONS: Orthodontic appliances increase keratinization of lip mucosa which is considered an adaptive reaction to the mechanical stimulus, but after removing of the appliances cellular activity rapidly increases. Keratinization is the main change observed at the end of orthodontic treatment.


Asunto(s)
Labio , Mucosa Bucal , Células Epiteliales , Humanos , Aparatos Ortodóncicos , Aparatos Ortodóncicos Fijos
12.
Pol Merkur Lekarski ; 49(286): 232-235, 2020 Aug 22.
Artículo en Inglés | MEDLINE | ID: mdl-32827416

RESUMEN

AIM: The aim of the study was to identify the consequences of the use of fixed otrhodontic appliances (FOAs) on the morphological state of the tissues of the lower wall of the maxillary sinus, depending on the duration of their use. MATERIALS AND METHODS: The study involved 115 male and female patients aged 18 to 25 years. All patients were divided into 2 research groups depending on the period of wearing brace systems. The control group consisted of patients who did not require orthodontic treatment orthodontic appliances. The density and thickness of the lower wall of the maxillary sinus were calculated in all groups. RESULTS: In the control group, the average minimum thickness of the lower wall of the maxillary sinus was 4.6±1.5 mm, the minimum density was 13.46±132.6 Hu, in prolonged wearing of FOAs (from 2 to 3 years) these indicators were: 4.96±1.22 mm and -160±187.4 Hu, respectively. In less severe malocclusion in people with a period of FOAs wearing from 1 to 1.5 years, these indicators were 5.03±1.06 mm and - 80.98±167.7 Hu. When measuring the density after one year, it increased and amounted to 25.6±184.4 Hu in wearing FOAs up to 1.5 years and 105.47±173.84 Hu in prolonged wearing of brace systems. CONCLUSIONS: It can be assumed that wearing of braces affects the morphological state of not only the enamel of the teeth, but also of the surrounding tissues, and this effect is more intense in prolonged wearing of FOAs.


Asunto(s)
Maloclusión , Seno Maxilar , Adolescente , Adulto , Huesos , Femenino , Humanos , Masculino , Aparatos Ortodóncicos , Aparatos Ortodóncicos Fijos , Adulto Joven
13.
Rev. ADM ; 77(4): 209-215, jul.-ago. 2020. tab
Artículo en Español | LILACS | ID: biblio-1129997

RESUMEN

A continuación se presenta un caso de un paciente de 12 años de edad, con antecedente de bruxismo, con biotipo mesofacial, tercio inferior dolicofacial, hipertonicidad muscular en maseteros, cierre labial forzado con incompetencia labial de 4 milímetros con dolor en sinoviales anteriores inferiores. Los objetivos de tratamiento consistieron en lograr relajación muscular y promover un posicionamiento condilar ortopédicamente funcional y estable, realizar control vertical para disminuir gap interlabial, alinear líneas medias, mantener clase I molar bilateral, clase I canina bilateral y clase I incisiva, crear overjet y overbite adecuados, con recuperación estética y función del segmento anterior. Debido a eventos adversos durante la etapa de cierre de espacios, la clase molar y canina I no se logró, pero se aseguró mediante ameloplastias positivas la función y estética adecuadas para tener un tratamiento de ortodoncia estable a largo plazo (AU)


The following is a case of a 12-year-old patient, with a history of bruxism, with a mesofacial biotype, lower third of the facial area, muscular hypertonicity in the masseters, a forced labial closure with a 4-millimeter labial incompetence with pain in inferior anterior synoviums. Treatment objectives consisted of achieving muscle relaxation and promoting orthopedically functional and stable condylar positioning, perform vertical control to decrease interlabial gap, align midlines, maintain bilateral molar class I, bilateral canine class I and incisive class I, create adequate overjet and overbite, with aesthetic recovery and function of the anterior segment. Due to adverse events during the closing phase of spaces, the molar and canine I class was not achieved, but positive function and aesthetics were ensured by positive ameloplasties in order to have a long-term stable orthodontic treatment (AU)


Asunto(s)
Humanos , Femenino , Niño , Ortodoncia Correctiva , Bruxismo , Relación Céntrica , Esmalte Dental/cirugía , Estética Dental , Aparatos Ortodóncicos , Planificación de Atención al Paciente , Ferulas Oclusales , Resinas Compuestas , México , Relajación Muscular
14.
Am J Orthod Dentofacial Orthop ; 158(3): 357-362, 2020 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-32680657

RESUMEN

INTRODUCTION: This study aimed to evaluate the stability of transverse changes after Class II malocclusion correction with the pendulum fixed distalizer, followed by preadjusted edgewise fixed orthodontic appliances. METHODS: This longitudinal study was conducted in the maxillary dental casts of 20 Class II malocclusion subjects (mean age, 12.5 years; 14 females and 6 males). Eighty 3-dimensional maxillary dental casts were analyzed; 20 at the beginning of treatment, 20 after distalization, 20 after edgewise appliance debonding, and 20 at 5 years posttreatment. Maxillary transverse distances between canines, first premolars, second premolars, first molars, and second molars were analyzed using Geomagic Studio 5 (3D Systems, Rock Hill, SC). RESULTS: There were no significant changes in intercanine distance during and after treatment. There were significant interfirst and intersecond premolar distance increases during treatment. There were significant interfirst and intersecond molar distance increases during the distalization phase. However, there were significant decreases in these distances at the end of treatment. There were no significant long-term posttreatment changes. CONCLUSIONS: The intercanine distance remains stable during and after treatment. The interfirst and intersecond premolar distances significantly increase during treatment and remain stable after treatment. The interfirst and intersecond molar distances increase during the distalization phase, decrease at the end of treatment, and remain stable after treatment.


Asunto(s)
Maloclusión de Angle Clase II , Técnicas de Movimiento Dental , Cefalometría , Niño , Femenino , Humanos , Estudios Longitudinales , Masculino , Maxilar , Diseño de Aparato Ortodóncico , Aparatos Ortodóncicos
16.
Stomatologiia (Mosk) ; 99(3): 22-26, 2020.
Artículo en Ruso | MEDLINE | ID: mdl-32608944

RESUMEN

THE AIM: To study the effect of toothbrushes of various types on the accumulation of plaque and the proteolytic potential of gingival fluid as a pathogenic factors in long-term orthodontic treatment of patients with a distal permanent bite. MATERIAL AND METHODS: We examined 63 patients of both sexes aged 11-18 years. Orthodontic treatment was carried out for the close position of the teeth with a distal permanent bite (K07.2) and cleft palate and lips (Q37.1). Patients were divided into three groups depending on the type of toothbrush used for individual oral hygiene: group 1 (n=21) - an orthodontic manual toothbrush (Professor Persin, «Spazzolificio Piave¼, Italy); Group 2 (n=22) - an ultrasonic toothbrush (Emmi-dent, EMAG AG, Germany) and group 3 (n=20) - an electric toothbrush ("Oral-B Pro-Expert, «Procter & Gamble¼, USA). RESULTS: The amount of soft plaque was assessed by the Silness-Loe hygiene index in the subgingival region. The activity of proteolytic enzymes - elastase, collagenase, and a α-inhibitor of proteinases was determined by the enzymatic method using a XL 200 biochemical analyzer («Erba Lachema¼, Czech Republic). The accumulation of plaque in the gingival region on both jaws during the entire period of orthodontic treatment is most pronounced when using a manual brush compared to ultrasonic and electric brushes. An increase in proteolytic activity in the gingival fluid with a simultaneous decrease in antiprotease potential with long-term orthodontic treatment of patients was observed when using a manual orthodontic brush, which can be regarded as an increase in the activity of the pathogenic factors for the development of local inflammatory and destructive changes. CONCLUSION: To prevent inflammatory and destructive changes during prolonged orthodontic treatment of patients, the use of ultrasonic and electric toothbrushes in daily oral hygiene is justified.


Asunto(s)
Gingivitis , Aparatos Ortodóncicos , Adolescente , Niño , Índice de Placa Dental , Femenino , Humanos , Masculino , Índice Periodontal , Método Simple Ciego , Cepillado Dental
17.
Prog Orthod ; 21(1): 17, 2020 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-32607604

RESUMEN

AIM: The study aimed to evaluate to which extent self-reported symptomatology, age, and sex are predictors of titanium and nickel allergic sensitization in patients in treatment with fixed orthodontic appliances. METHODS: The study analyzed 228 subjects aged 11-45 years (median 18, interquartile range 16-22); 68% of them were females, and 52% were adolescents. The allergic sensitization testing included epicutaneous patch test to titanium, titanium dioxide, titanium oxalate, titanium nitride, and nickel sulfate. The questionnaire on symptoms potentially linked to titanium and nickel sensitization was used. RESULTS: Prevalence of the allergic sensitization to titanium in patients undergoing orthodontic treatment was 4% (2% only to titanium without nickel) while to nickel 14% (12% nickel without titanium). Hypersensitivity to both metals at the same time was present in 2% of subjects. Sensitization to nickel was more common in females than in males (17 vs. 8%) and much more common in adults than in adolescents with small effect size (20 vs. 8%; p = 0.013). Sensitization to titanium was more common in females than in males (6 vs. 1%) with no difference in age. Multiple logistic regression analysis revealed that adult age increases the odds for being sensitized to nickel for 2.4 × (95% CI 1.1-5.6; p = 0.044) while watery eyes for 3.7 × (95% CI 1.2-11.1; p = 0.022). None of the symptoms were significant predictors of titanium sensitization. CONCLUSION: Allergic sensitization to titanium and nickel are not very frequent in orthodontic patients, and self-reported symptomatology is a weak predictor of those sensitizations.


Asunto(s)
Hipersensibilidad , Níquel , Adolescente , Adulto , Niño , Femenino , Humanos , Masculino , Persona de Mediana Edad , Aparatos Ortodóncicos , Pruebas del Parche , Titanio , Adulto Joven
18.
J Clin Pediatr Dent ; 44(3): 202-208, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32644891

RESUMEN

Objectives: The aim of study was to evaluate skeletodental and soft tissue treatment effects and the amount of maxillary molar distalization with modified C-palatal plates vs. Greenfield molar distalizer appliances in adolescents. Study design: The samples consisted of pre- and posttreatment lateral cephalograms collected from 39 patients with Class II malocclusion. The MCPP group was comprised of 21 patients (mean age: 11.7 ± 1.3 years) treated with MCPP appliances while the GMD group included 18 patients (mean age: 11.2 ± 0.9 years) treated with GMD. Fixed orthodontic treatment started with the distalization process in both groups. From each cephalograpm, twenty-nine variables were measured for analysis and then the two groups were compared. Descriptive statistics, a paired t-test, and multivariate analysis of variance were performed to compare the treatment effects within and between the groups. Results: There was significant treatmentrelated change in the sagittal position of the maxilla and the mandible within each group. However, there were no statistically significant inter-group differences. The mean maxillary first molar distalization was 3.96 mm in the MCPP group vs. 2.85 mm in the GMD group. Both groups showed minimal distal tipping, but the maxillary incisors were significantly extruded by 3.04 ± 0.89 mm (P < .001) in GMD group. There was no significant difference in treatment duration between the groups. Conclusions: The maxillary first molars of both the MCPP and GMD groups were effectively distalized and there were significant skeletal changes in the maxilla. However, the maxillary incisors were significantly extruded in the GMD group.


Asunto(s)
Maloclusión de Angle Clase II , Métodos de Anclaje en Ortodoncia , Adolescente , Cefalometría , Niño , Humanos , Maxilar , Diente Molar , Diseño de Aparato Ortodóncico , Aparatos Ortodóncicos , Técnicas de Movimiento Dental
19.
Am J Orthod Dentofacial Orthop ; 158(3): 400-409, 2020 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-32620476

RESUMEN

INTRODUCTION: The purpose of this research was to assess and compare esthetic perceptions of clear aligner therapy with attachments and esthetic brackets by measuring differences in eye fixations using eye-tracking technology. METHODS: The sample involved 250 adult subjects. The subjects gave verbal consent, then viewed photographs showing 4 variations of orthodontic appliances: clear aligner control with minimal attachments, clear aligner with anterior and posterior attachments, esthetic brackets, and clear aligner with posterior attachments. Images were displayed for 6 seconds each on a computer monitor. Location and time to first fixation, total fixation duration, and total visit count and duration for each type of appliance were measured. Subjects were then asked to complete an online survey. RESULTS: Participants spent the least amount of time looking at the photograph of the control, followed by those of the ceramic brackets, posterior attachments, and anterior and/or posterior attachments. The anterior and/or posterior image had the least number of visits but garnered the longest visit duration (1.32 visits averaging 0.74 seconds per visit). This was followed by the images of the posterior attachments (1.40 visits, 0.70 seconds per visit), ceramic brackets (1.43 visits, 0.65 seconds per visit), and minimal attachments control (1.45 visits, 0.61 seconds per visit). The hierarchy of most preferred appliances across all 250 respondents was as follows: minimal attachments control, ceramic brackets, posterior attachments, and anterior and/or posterior attachments. Overall, 88.4% of subjects would compromise appliance esthetics during treatment for a better outcome (n = 221). CONCLUSIONS: Eye-tracking data show that time to the first fixation was negatively correlated with its survey ranking and that an increase in attachments led to an increase in total fixation duration. There is a general desire for clear aligners without attachments and ceramic brackets over clear aligners with multiple attachments. Survey data suggest that although respondents viewed appliance esthetics as highly important, nearly all would compromise appliance esthetics during treatment if it resulted in a better outcome.


Asunto(s)
Estética Dental , Aparatos Ortodóncicos Removibles , Cerámica , Diseño de Aparato Ortodóncico , Aparatos Ortodóncicos , Sensación
20.
Am J Orthod Dentofacial Orthop ; 158(2): 221-228, 2020 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-32576427

RESUMEN

INTRODUCTION: In modern health care, social media has become an important tool for both patients and professionals. On platforms like Twitter and Instagram, patients can express their experiences, attitudes, and emotions regarding their orthodontic treatment or the available treatment options. This study aimed to investigate orthodontic-related social media use by analyzing the contents of posts made by patients and/or peers and exploring potential differences of users' attitudes on Twitter and Instagram. METHODS: During a 30-day period, we collected 361 orthodontic-related posts-153 from Twitter and 208 from Instagram-using the same search strategy on both platforms. A mixed-methods approach was applied. First, all posts were structured according to a qualitative content analysis. Subsequently, quantitative analysis was performed to detect potential differences between posts on Twitter and Instagram. RESULTS: The following main themes were identified: "Getting braces" and "Getting braces removed," "Limitations due to braces," "Seeking information," and "Comedy." In addition to this classification, all posts were categorized as positive, negative, or neutral. Pictures and emoticons were frequently used to express experiences, attitudes, and emotions regarding orthodontic appliances. There were significant differences between posts on Twitter and those on Instagram; that is, the latter contained more posts that were categorized as positive. CONCLUSIONS: To date, only a few studies addressed the role of social media for orthodontic patients. This study provided insights into the experiences, attitudes, and emotions of patients and their peers regarding orthodontics and helped to reveal the potential impact of social media use on the field of orthodontics. Attention must be paid to the functional differences between Twitter and Instagram because these might lead patients to express themselves in specific ways.


Asunto(s)
Medios de Comunicación Sociales , Emociones , Humanos , Aparatos Ortodóncicos
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