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1.
Ortodoncia ; 85(170): 8-15, jul.-dic. 2021. ilus, tab
Article in Spanish | LILACS | ID: biblio-1362999

ABSTRACT

Este trabajo tuvo como objetivo evaluar características de la sonrisa en pacientes con necesidad de tratamiento ortodóntico. Como objetivos específicos, se planteó estudiar el arco de la sonrisa, la línea del labio superior y los corredores bucales, que son tres componentes importantes a la hora de elaborar un plan de tratamiento adecuado para devolver al paciente una sonrisa funcional y estéticamente aceptable. La muestra quedó conformada por 157 pacientes; de cada uno de ellos se obtuvo una foto de una sonrisa voluntaria. Se encontró que el arco de la sonrisa, en el 39,5 %, presentaba un arco consonante; un 20,4 %, uno plano y el 40,1 % restante, uno no consonante. Al estudiar la línea del labio superior, se observó que, en el 8,3 %, la línea era baja; en el 62,4 %, media y en el 29,3 %, alta. En cuanto a los corredores bucales, se observó que el valor medio, en proporción a la distancia intercomisural del corredor bucal total, era de 15,89 % ± desvío estándar (5,03 %); el valor total máximo, 26,19 % y el valor mínimo, 2,74 %. Conociendo la prevalencia de cada uno de estos datos, se podrá arribar al diagnóstico y posterior plan de tratamiento para cada paciente de manera individualizada(AU)


This work aimed at evaluating smile characteristics in patients in need of orthodontic treatment. As specific objectives, it was raised the issue of studying the smile arch, upper lip line and buccal corridors, which are three important components when preparing an adequate treatment plan to restore the patient a functional and aesthetically acceptable smile. The sample consisted of 157 patients and a photo of a voluntary smile was obtained from each of them. It was found that the smile arch had a consonant arch in 39.5%, 20.4% a flat arch and the remaining 40.1% a nonconsonant arch. When studying the upper lip line, it was observed that in 8.3% the line was low, 62.4% medium and 29.3% high. As regards the buccal corridors, it was observed that the mean value in proportion to the intercommissural distance of the total buccal corridor was 15.89% ± standard deviation (5.03%); maximum total value was 26.19% and minimum value 2.74%. Knowing about the prevalence of each of these data, it will be able to arrive at the diagnosis and subsequent treatment plan for each patient individually(AU)


Subject(s)
Smiling , Photography, Dental , Esthetics, Dental , Face , Gingiva , Lip , Therapeutics
2.
Rev. Círc. Argent. Odontol ; 79(230): 5-15, dic. 2021. ilus
Article in Spanish | LILACS | ID: biblio-1358074

ABSTRACT

Desde la antigüedad la belleza y la armonía facial han sido objetivos que tanto pintores como escultores, médicos y las personas tratan de lograr. Los rostros han sido estereotipados y es así como las caras proporcionadas tanto en alto como en ancho con perfiles que son rectos o levemente convexos son los que se asocian a bondad, generosidad, personas con luz interior, princesas y son las "buenas de las películas". Pero ¿qué sucede con aquellos rostros cóncavos, con tercios inferiores ya largos o cortos?… a ellos les ha tocado la peor parte, son los malos, los oscuros, los "villanos de las películas". Objetivos La finalidad de este trabajo es acercar a los colegas ortodoncistas una opción de tratamiento en clase III esqueletal, cuando el camuflaje ortodóncico no alcanza para resolver el crecimiento alterado entre el maxilar superior y el maxilar inferior (AU)


Beauty and facial harmony have been, since the beginning of humanity, a target for artists, painters, sculptores, and even people and doctors to accomplish. There is a stereotype of beauty: faces with proportional dimensions both in height and length, with straight profiles or somehow convex are associated with kindness, generosity and inner beauty. We can see this in movies where the heroes, the princesses, the "good guys" are portrayed with these types of faces. And what happens with people with concave faces, long or short inferior thirds? They are doomed to be the evil, the dark and "the villains" (AU)


Subject(s)
Humans , Male , Adolescent , Esthetics, Dental , Face/anatomy & histology , Orthognathic Surgery , Malocclusion, Angle Class III/surgery , Patient Care Planning , Argentina , Cephalometry , Genioplasty , Maxillofacial Development
3.
Diagn. tratamento ; 26(3): 101-4, jul-set. 2021. ilus, tab
Article in Portuguese | LILACS | ID: biblio-1291194

ABSTRACT

Contexto: O fibrohistiocitoma maligno é um sarcoma de tecidos moles muito agressivo, com rara apresentação limitada à pele e tecido subcutâneo em face. O diagnóstico é anatomopatológico com auxílio da imuno-histoquímica. Descrição do caso: Este artigo relata o caso de um paciente com diagnóstico de fibrohistiocitoma maligno restrito à face com boa resposta terapêutica após exérese cirúrgica. Discussão: Tendo em vista a raridade dessa afecção, dificuldade diagnóstica devido ao quadro inespecífico e com rápida evolução, é importante lembrar desse possível diagnóstico e atuar precocemente. Conclusões: O diagnóstico precoce interfere de forma significativa na evolução do quadro, sendo necessária a manutenção do acompanhamento oncológico e dermatológico com o intuito de detectar precocemente recidivas locais e metástases a distância.


Subject(s)
Humans , Male , Aged , Skin Neoplasms/pathology , Histiocytoma, Malignant Fibrous/pathology , Face , Skin Neoplasms/surgery , Immunohistochemistry , Histiocytoma, Malignant Fibrous/surgery
4.
Rev. cir. traumatol. buco-maxilo-fac ; 21(1): 44-48, jan.-mar. 2021. ilus
Article in Portuguese | LILACS, BBO | ID: biblio-1252443

ABSTRACT

Fraturas faciais geralmente resultam traumas, e podem ocorrer de forma isolada ou concomitante a outras lesões. O trauma na região facial resulta em danos não só em tecido ósseo, mas também em tecido mole e dentição, causando um prejuízo na função e na estética do paciente. Os acidentes automotores permanecem sendo uma das causas mais significativas de traumas faciais. As fraturas do terço médio da face incluem a maxila, zigoma e o complexo naso órbito etimoidal; podem ser classificadas em: fraturas Le Fort I, II ou III, fraturas do complexo zigomático maxilar, fraturas de arco zigomático ou fraturas naso órbito etimoidais. Elas podem ser unilaterais ou bilaterais, simétricas ou assimétricas. Este estudo objetiva-se em relatar o caso clínico de um paciente do sexo masculino, 31 anos, vítima de acidente automobilístico (carro/ anteparo). O paciente foi diagnosticado com fratura do tipo Le Fort II e nasal onde foi realizado o tratamento de redução e fixação interna rígida das fraturas de maxila e redução incruenta de fratura nasal, resultando em melhora da condição do paciente. As fraturas Le Fort são predominantemente causadas por colisões de alta energia. Portanto o tratamento é imprescindível para a devolução da função, estética e autoestima do paciente... (AU)


Facial fractures usually result from trauma, and may occur in isolation or concomitantly with other injuries. Trauma in the facial region results in damage not only to bone tissue but also to soft tissue and dental elements, which causes a loss in the patient's function and esthetics. Automotive accidents remain one of the most significant causes of facial trauma. Fractures of the middle third of the face include maxilla, zygoma and the nasoorbitoethmoid; may be classified as: Le Fort I, II or III fractures, maxillary zygomatic complex fractures, zygomatic arch fractures, or nasoorbitoethmoid. They can be unilateral or bilateral, symmetrical or asymmetric. The present study aims to report the clinical case of a 31 years, male patient, victim of an automobile accident (car/fixed shield). The patient was diagnosed with le Fort II and nasal fracture, where the treatment of reduction and rigid internal fixation of maxilla fractures and reduction of nasal fracture were performed, resulting in improvement of the patient's condiction. Le Fort fractures are predominantly caused by high energy collisions. Therefore the treatment is essential for the return of the function, aesthetics and increase of the patient's self-esteem... (AU)


Subject(s)
Humans , Male , Adult , Osteotomy, Le Fort , Fracture Fixation , Maxillary Fractures , Maxillofacial Injuries , Face/surgery
5.
Article in Chinese | WPRIM | ID: wpr-887487

ABSTRACT

On the base of the analysis on the original text in


Subject(s)
Animals , Face , Female , Head , Meridians , Rats , Spine , Torso
6.
Neuroscience Bulletin ; (6): 1583-1594, 2021.
Article in English | WPRIM | ID: wpr-922637

ABSTRACT

It is widely acknowledged that holistic processing is a key characteristic of face perception. Although holistic processing implies the automatic integration of face parts, it is unclear whether such processing requires the awareness of face parts. Here, we investigated the interactions between visible face parts and face parts rendered invisible using continuous flash suppression (CFS). In the first experiment with the upper half-face visible and the lower half-face invisible, the results showed that perceived face identity was influenced by the invisible lower half-face, suggesting that integration occurs between the visible and invisible face parts, a variant of the "composite face effect". In the second experiment, we investigated the influence of visible face parts on the processing of invisible face parts, as measured by the time it took for the invisible parts to break out from CFS. The results showed a visible-to-invisible facilitation effect, that the aligned invisible face parts broke through CFS faster than when the visible and invisible face parts were misaligned. Visible eyes had a stronger influence on the invisible nose/mouth than the other way around. Such facilitation of processing from visible to invisible parts was also found when Chinese characters were used as stimuli. These results show that information integration occurs across the consciousness boundary.


Subject(s)
Awareness , Consciousness , Eye , Face , Facial Recognition , Photic Stimulation
7.
Article in Chinese | WPRIM | ID: wpr-921956

ABSTRACT

OBJECTIVE@#To explore the genotype-phenotype correlation in a child with Kabuki syndrome type 1 (KS1) caused by a mosaic frameshift variant of KMT2D gene.@*METHODS@#Trio-based whole exome sequencing (WES) was carried for the patient and her parents. Candidate variant was verified by Sanger sequencing.@*RESULTS@#The proband, a 3-year-and-2-month-old Chinese girl, presented with distinctive facial features, cognitive impairment, mild developmental delay, dermatoglyphic abnormalities, minor skeletal anomalies, ventricular septal defect, and autistic behavior. Trio-based WES revealed that the proband has carried a de novo mosaic frameshit variant of the KMT2D gene, namely NM_003482.3:c.13058delG (p.Pro4353Argfs*31) (GRCh37/hg19), for which the mosaicism rate was close to 21%. The variant was unreported previously and was confirmed by Sanger sequencing. Chromosomal microarray analysis (CMA) has revealed no pathogenic or likely pathogenic copy number variations. Compared with previously reported cases, our patient has presented obvious behavior anomalies including autism, anxiety and sleep problems, which were rarely reported.@*CONCLUSION@#This study has expanded the spectrum of KMT2D gene variants, enriched the clinical phenotypes of KS1, and facilitated genetic counseling for the family.


Subject(s)
Abnormalities, Multiple , China , DNA Copy Number Variations , DNA-Binding Proteins/genetics , Face/abnormalities , Female , Hematologic Diseases , Humans , Infant , Neoplasm Proteins/genetics , Phenotype , Vestibular Diseases
8.
Article in Chinese | WPRIM | ID: wpr-888388

ABSTRACT

OBJECTIVE@#To detect pathogenic variant of the FGD1 gene in a boy with Aarskog-Scott syndrome.@*METHODS@#Genetic variant was detected by high-throughput sequencing. Suspected variant was verified by Sanger sequencing. The nature and impact of the candidate variant were predicted by bioinformatic analysis.@*RESULTS@#The child was found to harbor a novel c.1906C>T hemizygous variant of the FGD1 gene, which has led to conversion of Arginine to Tryptophane at codon 636(p.Arg636Trp). The same variant was found in his mother but not father. Based on the American College of Medical Genetics and Genomics guidelines, the c.1906C>T variant of FGD1 gene was predicted to be likely pathogenic(PM1+PM2+PM5+PP2+PP3+PP4).@*CONCLUSION@#The novel c.1906C>T variant of the FGD1 gene may underlay the Aarskog-Scott syndrome in this child. Above finding has enabled diagnosis for the boy.


Subject(s)
Child , Dwarfism , Face/abnormalities , Genetic Diseases, X-Linked , Genitalia, Male/abnormalities , Guanine Nucleotide Exchange Factors/genetics , Hand Deformities, Congenital/genetics , Heart Defects, Congenital , Humans , Male , Mutation
9.
Article in Chinese | WPRIM | ID: wpr-888387

ABSTRACT

OBJECTIVE@#Clinical examination and molecular genetic analysis were carried out for one case with special facial features with developmental retardation, hearing impairment and cleft lip and palate.@*METHODS@#The intelligence test, hearing test, and MRI test were performed. At the same time, the blood were collected to detect the copy number variation of the whole genome with the chromosomal karyotype analysis and the chromosomal microarray analysis (CMA). And the whole exome sequencing (WES) was used to analyze the pathogenic variant.@*RESULTS@#The children had mild mental retardation and the IQ was 61. There was moderate hearing loss in both ears(left ear 60 dB, right ear 65 dB). And bilateral horizontal hypoplasia of semicircular canal was found by cranial MRI test. No copy number abnormality was found by chromosome karyotype analysis and chromosome microarray analysis in peripheral blood. And whole exome sequencing suggested that there was heterozygous pathogenic variants in KMT2D gene (p.Leu545Argfs*385).@*CONCLUSION@#The patient has a peculiar face and multiple system defects, and was diagnosed as Niikawa-Kuroki syndrome type I by KMT2D gene variant. The whole exome sequencing is helpful for the diagnosis of complex genetic diseases.


Subject(s)
Abnormalities, Multiple , Child , Cleft Lip , Cleft Palate , DNA Copy Number Variations , Face/abnormalities , Hematologic Diseases , Humans , Vestibular Diseases
10.
Article in Chinese | WPRIM | ID: wpr-888374

ABSTRACT

OBJECTIVE@#To explore the genetic basis of a child with recurrent infection, multiple malformation and dysmorphism.@*METHODS@#The child and his parents were subjected to trio whole exome sequencing.@*RESULTS@#The child had a complaint of fever and cough, with long and thin eye fissures and long eyelashes. Genetic testing revealed that the child has carried a non-triplet deletion of the KDM6A gene, which was unreported previously. The variant resulted in frameshift and premature termination of the translation. His parents were both of the wild type for the locus. After antibiotic and immunoglobulin treatment, the severe secondary pneumonia caused by immunodeficiency has improved.@*CONCLUSION@#With combined laboratory test, imaging examination and genetic testing, the child was ultimately diagnosed with Kabuki syndrome type 2. The characteristics of immunodeficiency of Kabuki syndrome may render conventional antibiotic treatment ineffective, which deserves clinical attention.


Subject(s)
Abnormalities, Multiple , Child , DNA-Binding Proteins/genetics , Face/abnormalities , Genetic Testing , Hematologic Diseases , Histone Demethylases/genetics , Humans , Neoplasm Proteins/genetics , Nuclear Proteins/genetics , Phenotype , Pneumonia , Vestibular Diseases
11.
Article in English | WPRIM | ID: wpr-878440

ABSTRACT

The maxillofacial skeleton is the basis of the contour of the face. Orthognathic surgery and facial contouring surgery change jaw tissue and affect facial appearance in different manners. Orthognathic surgery is the main method to correct dental and maxillofacial deformities. It changes the shape of the jaw and improves the occlusal relationship by changing the three-dimensional position of the jaw. Facial contouring surgery mainly adopts the method of "bone reduction", which changes the "amount"of the jawbone by cutting a part of the bone tissue to improve the facial appearance, generally without changing oral function. The combined use of orthognathic surgery and facial contouring surgery is becoming increasingly common in clinical practice. This also requires oral and maxillofacial surgeons to have a holistic consideration of the comprehensive correction of maxillofacial bone deformity, and to perform comprehensive analysis of jaw deformities and jaw plastic surgery to achieve the most ideal results. The author's team has been engaged in the clinical work of orthognathic surgery and facial contouring surgery and accumulated rich clinical experience in the comprehensive correction of maxillofacial bone deformity. In this article, the indications, treatment goals, treatment modes, treatment methods, and key points in the surgical operations of comprehensive maxillofacial bone surgery were summarized.


Subject(s)
Face/surgery , Facial Bones , Humans , Maxillofacial Abnormalities , Orthognathic Surgery , Orthognathic Surgical Procedures
12.
Braz. oral res. (Online) ; 35: e036, 2021. tab, graf
Article in English | LILACS, BBO | ID: biblio-1249381

ABSTRACT

Abstract: Evaluating factors that may influence the nose dimensions and, therefore, contribute to the singularity of a person, is important for obtaining a precise facial reconstruction (FR) in forensic anthropology. Thus, the aim in this study was to evaluate the influence of sex, skeletal class, and facial type on nose dimensions of Brazilian individuals using cone-beam computed tomography (CBCT) scans. CBCT images of 54 males and 67 females were classified according to skeletal class (class I, II, or III) and facial type (brachycephalic, dolichocephalic and mesocephalic). Linear and angular measurements of the nose were performed using the CS 3D Imaging software. The measurements obtained for males and females were compared by one-way ANOVA. Two-way ANOVA was used to compare the measurements in the different skeletal classes and facial types. Significance level was set at 5%. All linear measurements were greater in males (p < 0.05); the angular measurements, however, did not differ between sexes (p > 0.05). Linear and angular measurements of class III males were significantly different from the other classes; the same was observed for the angular measurements in females (p < 0.05). Regarding facial types, some linear measurements were significantly greater in dolichocephalics males (p < 0.05). For females, there was no influence of facial type (p > 0.05), except for the nasal convexity angle. Nose dimensions differed in specific points among different skeletal classes and facial types, and there was sexual dimorphism in all linear nose dimensions. This information may be applicable for nose reconstructions, allowing more reliable FR.


Subject(s)
Humans , Male , Female , Spiral Cone-Beam Computed Tomography , Brazil , Nose/diagnostic imaging , Imaging, Three-Dimensional , Face/diagnostic imaging , Cone-Beam Computed Tomography
13.
Article in English | LILACS, BBO | ID: biblio-1155002

ABSTRACT

ABSTRACT Objctive: To assess the soft tissue characteristics of Bangladeshi adults to formulate soft tissue 3D CT standards using Holdaway's (HA) and lip morphology (LM) analyses. Another aim of this study was to assess the gender dimorphism of Bangladeshi population. Material and Methods: One hundred and seventeen (Eighty-five men and Thirty-two women) Bangladeshi adults have obtained their computed tomography (CT) scan at the Radiology Department for normal diagnosis. Craniofacial deformities were undetected in all cases. The CT images were prepared by a 3D imaging programming software (Mimics 11.02 Materialise). Parameters from the identified landmark points were measured in 3D through this software. Results: Upper lip thickness (ULT) (vermillion UL-A point) measurement was significant in HA and in LM analyses, upper lip protrusion (ULP) (Ls to Sn-SPog) measurement has demonstrated significant difference among both genders, where p-value was less than 0.05. Mean measurements of Bangladeshi adults were relatively comparable except the face convexity (FC) when compared with the HA cephalometric soft tissue values. Conclusion: By using HA and LM analyses, 3D CT soft tissue standards were established for Bangladeshi adults. Measurements for all parameters have remained equivalent with the HA standard data apart from the FC measurement. This consequently may demonstrate that the Bangladeshi population retains a convex shape with a slight protrusive lip or retruded chin.


Subject(s)
Humans , Male , Female , Adult , Orthodontics, Corrective , Skull/diagnostic imaging , Diagnostic Imaging/instrumentation , Craniofacial Abnormalities/diagnostic imaging , Face/diagnostic imaging , Therapy, Soft Tissue , Bangladesh/epidemiology , Tomography, X-Ray Computed/instrumentation , Cross-Sectional Studies , Cross-Sectional Studies/methods , Retrospective Studies , Data Interpretation, Statistical , Sex Characteristics
14.
Dental press j. orthod. (Impr.) ; 26(2): e21bbo2, 2021. tab, graf
Article in English | LILACS, BBO | ID: biblio-1249703

ABSTRACT

ABSTRACT The Herbst appliance can be very effective in treatment of Class II patients with mandibular retrognathism. Because of the continuous action in a full-time basis, treatment time using it normally takes from six to ten months, and is usually followed by a second phase of full fixed appliances, in order to obtain both occlusal refinement and long term stability. Despite Herbst appliance's effectiveness in the occlusal and dentoalveolar perspectives, its facial results may differ among patients with different growth patterns, as well as in distinct stages of skeletal maturation. In the current paper, two patients with different facial patterns are presented, who were treated under the same protocol, using Herbst and full fixed appliances in different skeletal maturation stages, and both dentoalveolar and facial results are compared and discussed.


RESUMO Um número significativo de pacientes que procuram o tratamento ortodôntico apresenta má oclusão de Classe II acompanhada pelo retrognatismo mandibular. Abordagens ortopédicas para avanço mandibular são comumente utilizadas enquanto houver crescimento facial remanescente e, nesses casos, o estágio de maturação esquelética deve ser avaliado para definir a melhor época de intervenção terapêutica. Após concluída a fase ortopédica, normalmente é realizada uma segunda fase ortodôntica para refinamento oclusal, com o intuito de oferecer maior estabilidade das correções em longo prazo. No presente artigo, serão discutidos os resultados do avanço mandibular ortopédico considerando-se diferentes estágios de crescimento.


Subject(s)
Humans , Cephalometry , Orthodontic Appliances, Functional , Mandibular Advancement , Malocclusion, Angle Class II , Face/anatomy & histology , Face/diagnostic imaging , Malocclusion, Angle Class II/therapy , Malocclusion, Angle Class II/diagnostic imaging
15.
Dental press j. orthod. (Impr.) ; 26(1): e2119133, 2021. tab, graf
Article in English | LILACS, BBO | ID: biblio-1154068

ABSTRACT

ABSTRACT Introduction: McNamara's Jr. cephalometric analysis is a tool to diagnose dental and skeletal discrepancies and is widely used, guiding diagnosis for surgical procedures to be performed or for the use of functional devices. Few studies have shown that different ethnic groups have different cephalometric patterns. Thus, single characteristics should be respected to support the diagnosis and to help the treatment plan for different ethnic groups and their different patterns of miscegenation. Objective: Obtain normal values for McNamara's cephalometric analysis for adolescent Japanese-Brazilian descents with normal occlusion, as well as to compare this sample with similar samples of White-Brazilian and Japanese. Methods: Lateral headfilms from 40 White-Brazilian, 33 Japanese and 32 Japanese-Brazilian descents were selected. The three groups were composed by individuals with normal occlusion, well-balanced profiles and were separated by sex. The data were statistically analyzed with ANOVA, t-test, ANCOVA and MANCOVA tests. Results: White-Brazilian males had significantly greater nasolabial angle than Japanese males. Japanese-Brazilian displayed an intermediate value between White-Brazilian and Japanese. Conclusion: White-Brazilian, Japanese and Japanese-Brazilian present different cephalometric characteristics of McNamara analysis. Japanese males have a significantly more acute nasolabial angle than White-Brazilian subjects.


RESUMO Introdução: A análise cefalométrica de McNamara Jr. é uma ferramenta amplamente utilizada para o diagnóstico das discrepâncias dentárias e esqueléticas, principalmente porque fornece um diagnóstico que orienta os procedimentos cirúrgicos a serem realizados ou a utilização de aparelhos funcionais. Estudos têm demonstrado que diferentes grupos étnicos apresentam padrões cefalométricos distintos. Portanto, as características próprias dos indivíduos devem ser respeitadas, para suportar o diagnóstico e facilitar o plano de tratamento, entre as diferentes etnias e seus diferentes padrões de miscigenação. Objetivo: Determinar os valores médios de normalidade das grandezas cefalométricas relacionadas à análise de McNamara em jovens mestiços nipo-brasileiros, com oclusão normal, descendentes de japoneses e brasileiros, e comparar os resultados das variáveis com amostras de jovens brasileiros leucodermas e xantodermas que apresentem as mesmas características. Métodos: Foram selecionadas 40 telerradiografias de jovens leucodermas, 33 de xantodermas e 32 de nipo-brasileiros. As três amostras foram constituídas de indivíduos com oclusão normal e face bem balanceada, e foram divididas por sexo. Os dados foram estatisticamente analisados utilizando ANOVA, teste t, ANCOVA e MANOVA. Resultados: Os leucodermas apresentaram o ângulo nasolabial significativamente maior, comparados aos japoneses, no sexo masculino; enquanto os nipo-brasileiros apresentaram um valor intermediário entre os leucodermas e xantodermas. Conclusão: Os grupos de leucodermas, xantodermas e nipo-brasileiros apresentaram diferentes características cefalométricas da análise de McNamara. Os xantodermas no sexo masculino tiveram o ângulo nasolabial significativamente mais agudo, quando comparados com os leucodermas.


Subject(s)
Humans , Male , Adolescent , European Continental Ancestry Group , Brazil , Cephalometry , Face , Face/anatomy & histology , Japan
16.
Dental press j. orthod. (Impr.) ; 26(1): e2119204, 2021. tab, graf
Article in English | LILACS, BBO | ID: biblio-1154065

ABSTRACT

ABSTRACT Objective: Evaluate the height, thickness and cortical density of the palatal bone of adults with different vertical facial patterns using Cone-Beam Computed Tomography (CBCT). Methods: This study analyzed 75 CBCTs of patients between 18 and 35 years old (45 men and 30 women). The CBCTs were classified into three groups based on their facial pattern: normodivergent, hypodivergent and hyperdivergent as determined from lateral cephalograms synthesized from the CBCTs. The height, cortical thickness and cortical density of the palatal bone were measured at 4, 8, 12, 16 and 20mm posterior to the incisive foramen, and at 3, 6 and 9mm lateral to the midpalatal suture. ANOVA with Tukey post-hoc tests were used for analysis of the data, at significance level of p< 0.05. Results: The hypodivergent pattern had a significant difference and the greatest height and cortical thickness of the palatal bone, followed by the hyperdivergent and the normodivergent patterns. No significant differences were found in minimum and maximum values of cortical density. Conclusion: The palatal bone is a favorable anatomical area to install different orthodontic temporary anchorage devices (TADs), where individuals with the hypodivergent vertical facial pattern have a higher height and cortical thickness of the palatal bone, followed by the hyperdivergent pattern and finally the normodivergent pattern. No significant differences in the cortical density of the palatal bone in the three facial patterns were found.


RESUMO Objetivo: Avaliar a altura, a espessura e a densidade cortical do osso palatino em adultos com diferentes padrões faciais verticais, utilizando a tomografia computadorizada de feixe cônico (TCFC). Métodos: O presente estudo analisou 75 TCFCs de pacientes com idades entre 18 e 35 anos (45 homens e 30 mulheres). As TCFCs foram classificadas em três grupos, de acordo com seus padrões faciais: normodivergentes, hipodivergentes e hiperdivergentes, conforme determinado na radiografia cefalométrica lateral reconstruída das TCFCs. Altura, espessura e densidade cortical do osso palatino foram aferidas a 4, 8, 12, 16 e 20 mm para posterior do forame incisivo e a 3, 6 e 9 mm lateralmente à sutura transpalatina. Os testes ANOVA e post-hoc de Tukey foram utilizados para análise dos dados, com nível de significância de p< 0,05. Resultados: O padrão hipodivergente apresentou uma diferença significativa e a maior altura e espessura cortical do osso palatino, seguido pelos padrões hiperdivergente e normodivergente. Nenhuma diferença estatisticamente significativa foi encontrada nos valores mínimos e máximos da densidade cortical. Conclusão: O osso palatino é uma área anatomicamente favorável para instalar diferentes dispositivos de ancoragem temporária. Indivíduos com padrão facial vertical hipodivergente apresentam maior altura e espessura cortical do osso palatino, seguido do padrão hiperdivergente e finalmente do padrão normodivergente. Não foi encontrada qualquer diferença significativa na densidade cortical do osso palatino entre os três padrões faciais.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Dental Implants , Orthodontic Anchorage Procedures , Palate/surgery , Palate/diagnostic imaging , Face , Cone-Beam Computed Tomography
17.
Article in English | LILACS, INDEXPSI | ID: biblio-1143373

ABSTRACT

Abstract Some studies indicate differences in self-regulatory behaviors of infants, depending on their gestational age. This paper aimed to compare interactive behaviors of full-term and preterm infants in the Face-to-Face Still-Face (FFSF) paradigm. Thirty prematurely born infants and thirty full-term infants were observed in the FFSF's experimental procedure, which consists in exposing the infant to two episodes of interaction with the mother plus another episode in which the interaction gets interrupted. The Coding System and Analysis of Infant Behaviors Expressed in Still-Face adapted was used to analyze the infants' interactive behaviors. Significant differences were observed in self-comfort behaviors. All the infants showed the still-face and the recovery effect, and full-term infants showed a carry-over effect. Results contribute to planning interventions that will help mothers promote more positive dyadic interactions.


Resumo Estudos têm apresentado diferenças nos comportamentos de autorregulação de bebês quando considerada a idade gestacional. Este estudo teve por objetivo comparar comportamentos interativos de bebês nascidos a termo e prematuros segundo paradigma experimental do Face-to-Face Still-Face (FFSF). Trinta bebês nascidos prematuros e trinta a termo foram observados no procedimento experimental do FFSF que consiste na exposição do bebê a dois episódios de interação com a mãe e a um episódio em que se interrompe a interação. Utilizou-se uma adaptação do Sistema de Codificação e de Análise dos Comportamentos Infantis Expressos no Still-Face para analisar os comportamentos interativos dos bebês. Diferenças significativas foram observadas nos comportamentos de autorregulação. Todos os bebês apresentaram o efeito still-face e de recuperação e os bebês a termo apresentaram o efeito carry-over. Os resultados contribuem para o planejamento de intervenções que auxiliem as mães a promoverem interações diádicas mais positivas.


Resumen Estudios han mostrado diferencias en las conductas de autorregulación de bebés, de acuerdo con su edad gestacional. Este estudio buscó comparar las conductas interactivas de bebés nacidos a término y prematuros en el paradigma experimental Face-to-Face Still-Face (FFSF). Treinta bebés nacidos prematuros y treinta a término fueron observados en el procedimiento experimental del FFSF que consiste en la exposición del bebé a dos episodios de interacción con la madre y a un episodio en el que se interrumpe la interacción. Se utilizó de una adaptación del Sistema de Codificación y Análisis de las Conductas Infantiles expresadas en Still-face para analizar las conductas interactivas de los bebés. Se observaron diferencias significativas en las conductas de autorregulación. Los bebés mostraron los efectos still-face y de recuperación, y los bebés a término presentaron un efecto carry-over. Los resultados contribuyen para planificar intervenciones que auxilien a las madres a promover interacciones diádicas más positivas.


Subject(s)
Humans , Male , Female , Infant, Premature , Child Behavior , Premature Birth , Ego , Face , Emotional Regulation , Mother-Child Relations , Mothers
18.
J. appl. oral sci ; 29: e20210199, 2021. tab, graf
Article in English | LILACS | ID: biblio-1340100

ABSTRACT

Abstract Objective To assess craniofacial changes from early adulthood to the seventh decade of life in individuals with normal occlusion. Methodology The sample comprised lateral cephalograms of 21 subjects with normal occlusion (11 male, 10 female), taken at 17 (T1) and 61 years of age (T2). Anteroposterior and vertical maxillomandibular relationships, and dentoalveolar and soft tissue changes were analyzed. Interphase comparisons were performed using paired t-tests. Differences between sexes, and subgroups with and without tooth loss were evaluated using t-tests (p<0.05). Results Maxillary and mandibular anterior displacement, and facial and ramus height increased from T1 to T2. Maxillary molars showed significant mesial angulation. Maxillary and mandibular molars, and mandibular incisors developed vertically during the evaluation period. Soft tissue changes included a decrease of the nasolabial angle, upper and lower lip retrusion, decrease of upper lip thickness and increase of the lower lip and soft chin thickness. Maxillary incisor exposure by the upper lip decreased 3.6 mm in 40 years. Males presented counterclockwise rotation of the mandible, whereas females showed mandibular clockwise rotation and backward displacement of the chin. The group with tooth loss showed a greater increase of the posterior facial height and ramus height. Conclusion We observed aging changes in dentoskeletal structures and soft tissue, as well as sexual differences for craniofacial changes during the maturational process. Subjects with multiple tooth losses showed a greater increase in mandibular ramus height.


Subject(s)
Humans , Female , Adolescent , Adult , Face/anatomy & histology , Mandible , Aging , Cephalometry , Incisor , Maxilla
19.
Rev. bras. ortop ; 55(6): 702-707, Nov.-Dec. 2020. graf
Article in English | LILACS | ID: biblio-1156200

ABSTRACT

Abstract Objective Description of the sacropelvic parameters measurement method for S2-alar iliac (S2AI) screw insertion. Methods Descriptive study of the method for measuring sacropelvic parameters for the insertion of the S2AI screw using computed tomography (CT). The data evaluated in multiplanar reconstructions were the parameters of the screw trajectory, including length, diameter and angles of the trajectory in the axial and sagittal planes. Results From the sagittal reconstruction, the axis of the series of axial slices is angled three-dimensionally so that it is possible to visualize the S2 vertebra, the screw entry point, and the anteroinferior iliac spine (AIIS) in the same plane. The entry point is demarcated at the midpoint between the dorsal foramina of S1 and S2. To measure the length of the screw, lines are drawn tangent to the inner and outer cortices of the iliac. The diameter is determined by the shortest distance between the inner and outer iliac faces minus half of the diameter of the screw chosen medially and laterally. The path angle in the axial plane is formed by the anteroposterior midline of the sacrum and the line of the screw length. The craniocaudal inclination angle in relation to the S1 plateau corresponds to the degree of inclination made in the sagittal plane to find the image in which the entry point and the AIIS are seen in the same plane. Conclusion It was possible to adequately assess, through multiplanar CT reconstructions, the sacropelvic parameters necessary for the safe insertion of the S2AI screw.


Resumo Objetivo Descrever como aferir os parâmetros sacropélvicos para a inserção segura do parafuso S2-asa do ilíaco (S2AI). Métodos Estudo descritivo do método de aferição dos parâmetros sacropélvicos para a inserção do parafuso S2AI por meio de tomografia computadorizada (TC). Os dados avaliados em reconstruções multiplanares foram os parâmetros da trajetória do parafuso, incluindo comprimento, diâmetro e ângulos de trajetória nos planos axial e sagital. Resultados A partir da reconstrução sagital, angula-se tridimensionalmente o eixo da série de cortes axiais de modo que seja possível visualizar a vértebra S2, o ponto de entrada do parafuso e a espinha ilíaca anteroinferior (EIAI) no mesmo plano. O ponto de entrada é demarcado no ponto médio entre os forames dorsais de S1 e S2. Para medir o comprimento do parafuso, traçam-se linhas tangenciando as corticais interna e externa do ilíaco. O diâmetro é determinado pela menor distância entre as tábuas interna e externa do ilíaco subtraindo metade do diâmetro do parafuso escolhido medialmente e lateralmente. O ângulo de trajetória no plano axial é formado pela linha média anteroposterior do sacro e a linha do comprimento do parafuso. O ângulo de inclinação craniocaudal em relação ao platô de S1 corresponde ao grau de inclinação feito no plano sagital para encontrar a imagem em que o ponto de entrada e a EIAI são vistos no mesmo plano. Conclusão Foi possível aferir adequadamente, por meio de reconstruções multiplanares de TC, os parâmetros sacropélvicos necessários para a inserção segura do parafuso S2AI.


Subject(s)
Sacroiliac Joint , Sacrum , Spine , Wounds, Penetrating , Tomography, X-Ray Computed , Face
20.
Rev. Odontol. Araçatuba (Impr.) ; 41(3): 15-21, set./dez. 2020. ilus
Article in Portuguese | LILACS, BBO | ID: biblio-1121724

ABSTRACT

Introdução: A bichectomia é um procedimento cirúrgico que remove parte do corpo adiposo bucal não apenas para fins estéticos, mas também funcionais, limitando o trauma recorrente na região jugal. A correta indicação cirúrgica e o auxílio de exames de imagem são essenciais para o planejamento cirúrgico e seleção da técnica a ser utilizada, minimizando as taxas de complicações e alcançando resultados seguros e satisfatórios. Objetivo: Relatar dois casos clínicos em que a bichectomia foi realizada, enfatizando a importância da ultrassonografia pré-operatória na determinação do volume do corpo adiposo bucal e abordando duas técnicas cirúrgicas. Relato de casos clínicos: Duas pacientes do sexo feminino (18 e 32 anos), normosistêmicas, relataram queixas de insatisfação estética com o contorno arredondado da face, além de trauma constante na mucosa jugal. Ao exame clínico, as pacientes apresentavam mucosa jugal de volume aumentado e traumatizado. A bichectomia foi realizada pelo acesso de Matarasso e pelo fundo de sulco. Conclusão: a ultrassonografia mostrou-se eficiente no planejamento cirúrgico da bichectomia, favorecendo a retirada do corpo adiposo da bochecha de forma previsível, rápida e segura. As duas técnicas cirúrgicas foram eficazes para remoção do corpo adiposo bucal(AU)


Introduction: Bichectomy is a surgical procedure that removes part of the buccal fat pad not only for esthetic but also functional purposes, limiting recurrent trauma in the jugal region. The correct surgical indication and the aid of imaging examinations are essential for the surgical planning and selection of the technique to be used, minimizing complication rates and achieving safe and satisfactory results. Objective: To report two clinical cases in which bichectomy was performed, emphasizing the importance of preoperative ultrasonography in determining the volume of the buccal fat pad. Report of clinical cases: Two female patients (18 and 32 years), normosistemic, reported complaints of aesthetic dissatisfaction with the rounded contour of the face, in addition to a constant complaint of trauma to the jugal mucosa. At the clinical examination, the patients presented jugal mucosa of increased and traumatized volume. A bichectomy was performed by Matarasso access and by the furrow fund. Conclusion: ultrasonography proved to be efficient in assisting the surgical planning of bichectomy, favoring the removal of the buccal fat pad in a predictable, fast and safe way. The two surgical techniques were effective for removal of the buccal fat pad(AU)


Subject(s)
Cheek , Cheek/surgery , Surgery, Oral , Adipose Tissue , Ultrasonography , Esthetics , Face
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