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1.
Am J Orthod Dentofacial Orthop ; 158(4): e37-e42, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32988573

RESUMO

INTRODUCTION: With the increasing demand for facial esthetics, patients' expectations regarding dental treatment have increased. The treatment of maxillary median diastemas (MMDs) stands out as one of the most noticeable esthetic alterations performed on patients. The objectives of the present article were to evaluate the effects of MMD and its restorations on the esthetics of a smile and to determine the differences in esthetic perceptions among 3 different groups of patients: orthodontists, prosthodontists, and laypeople. METHODS: Printed photographic images were randomly arranged in an album that contained the original photograph of the smile, 8 photographs with digitally created diastemas (0.5 mm, 1.0 mm, 1.5 mm, 2.0 mm, 2.5 mm, 3.0 mm, 4.0 mm, and 5.0 mm), and 8 with simulated restorations of these spaces. Each evaluator assigned scores to the images using a 100-mm visual analogue scale. RESULTS: Orthodontists, prosthodontists, and laypeople presented similar perceptions regarding the levels of attractiveness of the original smiles and those of smiles involving restorations of diastemas with widths of 0.5 mm and 1.0 mm. The ratings assigned to the smiles with diastemas differed significantly from those of the corresponding restored smile with the same magnitude of diastema. CONCLUSIONS: The prosthetic space closure of diastemas is better than leaving the space untreated. Restorations of MMD up to 1 mm perform similar to orthodontic closure. Larger MMDs are ideally treated with orthodontics because the restorative treatment is more invasive, leading to incremental damage to the dental tissues.


Assuntos
Diastema/terapia , Atitude do Pessoal de Saúde , Estética Dentária , Humanos , Incisivo , Maxila
2.
Eur J Paediatr Dent ; 21(3): 235-237, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32893658

RESUMO

BACKGROUND: Segmental odontomaxillary dysplasia is an uncommon nonhereditary growth disorder that affects the maxilla, gums and ipsilateral dentition. The disorder is diagnosed mainly based on dental (over-retention of primary teeth, dental agenesis and diastemas) and bone findings (bone sclerosis, irregular trabeculation of immature bone and reduced maxillary sinus). This paper provides a case report. CASE REPORT: A 5-year-old child with skin manifestations including hypertrichosis, facial erythema and pigmented nevus was diagnosed with type II segmental odontomaxillary dysplasia based on clinical, radiographic and histopathological analysis. CONCLUSION: The skin findings can help with the suspicion of segmental odontomaxillary dysplasia, although the definitive diagnosis is typically established by a paediatric dentist based on clinical and radiological findings.


Assuntos
Diastema , Odontodisplasia , Dermatopatias , Pré-Escolar , Humanos , Maxila , Dente Decíduo
3.
Rev. Odontol. Araçatuba (Impr.) ; 41(2): 15-21, maio-ago.2020. ilus
Artigo em Português | LILACS, BBO - Odontologia | ID: biblio-1102664

RESUMO

Atualmente é constante a demanda por sorrisos harmoniosos nos procedimentos clínicos odontológicos, resultando em estímulos no desenvolvimento de técnicas minimamente invasivas, sistemas adesivos e materiais que sejam capazes de reproduzir as características naturais dos elementos dentários. Para as reabilitações estéticas, em especial nas unidades anteriores, os laminados cerâmicos apresentam destaque, em virtude das suas características físicas e ópticas. Como procedimento alternativo, as facetas pré-fabricadas em resina composta foram reintroduzidas na Odontologia Restauradora, exibindo versatilidade, facilidade e relação custo/benefício satisfatórias. Objetivo: Relatar um caso, demostrando uma das opções viáveis para solucionar problemas estéticos, como diastemas e desproporções dentárias. Relato de caso: A paciente procurou atendimento odontológico especializado relatando insatisfação com o sorriso. Durante avaliação, foram observados desarmonia nas proporções dentárias, diastemas múltiplos, restaurações deficientes em resina composta e fraturas nas bordas incisais. Diante disso, após o registro fotográfico, foi realizado a seleção do formato e cor das facetas pré-fabricadas, assim como, do agente de cimentação. A seguir, foi feito o isolamento relativo, remoção das restaurações deficientes e os ajustes das facetas ao dente. Para preparação da peça, foi realizado a limpeza e aplicação do adesivo; nos preparos dentários, após asperização da superfície, houve o condicionamento e aplicação do adesivo, a seguir procedeu-se a etapa de cimentação e, acabamento e polimento. Conclusão: O tratamento realizado conseguiu suprir as necessidades estéticas do sorriso da paciente, mostrando que as facetas préfabricadas em resina composta apresentam estética satisfatória, facilidade de instalação, baixo custo em relação as peças em cerâmica e conservação da estrutura dentária(AU)


Introduction: In present days, there is a constant demand for harmonious smiles in the dental clinical procedure, resulting in encouragement on development in minimally invasive techniques, adhesives systems and materials that can be capable to reproduce natural dental elements. For aesthetic rehabilitation in special in the anterior units, the ceramic laminates are highlighted due to their optical and physical features. As an alternative procedure, prefabricated composite resigns have been reintroduced into restorative dentistry, showing satisfactory versatility, ease and cost-effectiveness. Objective: Report a case, showing one of the viable options to solve aesthetical problems as diastemas and dental disproportions. Case Report: The patient sought specialized dental care reporting dissatisfaction with the smile. During evaluation, disharmony in tooth proportions, multiple diastemas, composite deficient resigns restorations and incisal edges fractures were observed. Therefore, after the photographic register, the shape and colour of the prefabricated facets, as well as cementing agent were selected. Hereinafter, relative isolation, removal of the deficient restorations and adjustments of tooth's veneers were then performed. For the piece preparation, cleaning and adhesive application were performed; on dental preparations, after the surface roughening, the adhesive was etched and applied followed by finishing and polishing cementation. Conclusion: The treatment was able to supply the aesthetical needs of the patient's smile, showing that prefabricated composite resigns veneers present satisfactory aesthetics, ease installation, low cost compared to ceramic pieces and conservation of the dental structure(AU)


Assuntos
Feminino , Adulto , Resinas Compostas , Facetas Dentárias , Diastema , Sorriso , Estética Dentária
4.
Oper Dent ; 45(6): 575-580, 2020 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-32503042

RESUMO

CLINICAL RELEVANCE: It is possible to modify the natural emergence profile of the tooth using simple intrasulcular direct restorations. The shape of the intrasulcular part of the restoration will determine the design of the gingival contour. SUMMARY: Some clinical situations, such as the closure of pronounced diastemas and the transformation of malformed, small, or peg-shaped teeth, require a rebalancing of dental proportions accompanied by a modification of the gingival contour. A traditional treatment plan might require surgical, prosthetic, and/or orthodontic treatment, but in some cases, these therapeutic options could be considered too invasive and not always the best solution. Moreover, not all patients are ready to undergo irreversible, long, and expensive procedures. To overcome these limitations and to solve all of these clinical problems in a rapid and noninvasive way, we propose a new technique that allows us to modify the natural emergence profile of the tooth using simple intrasulcular direct restorations. Using the Biologically Active Intrasulcular Restoration technique, it is possible to rebalance tooth shape and dimensions, gingival level and contour with low biological and economic costs. This method, which does not require any preparation of the dental tissues, is reversible and minimally invasive. It is applicable to patients of all ages, and results are obtained in a single appointment.


Assuntos
Diastema , Dente , Restauração Dentária Permanente , Gengiva , Humanos
5.
Orthod Craniofac Res ; 23(4): 493-500, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-32542915

RESUMO

OBJECTIVE: This study aimed to use eye tracking to analyse people's visual perceptions of smiles with a diastema between the maxillary central and lateral incisors, based on different categories of observers. SETTING AND SAMPLE POPULATIONS: An image of a diastema between the maxillary central and lateral incisors was shown to dental students and laypeople. MATERIALS AND METHODS: Our null hypothesis was that there would be no difference in the visual perception of the different graduations of diastemas between the two groups. The diastemas were edited in Photoshop® to gradually increase the distance between the maxillary central and lateral incisors from no diastema to 1.5 mm and 3.5 mm diastemas. These diastemas were evaluated by using a TheEyeTribe© tracker in conjunction with OGAMA© 5.0 software. A total of 37 dental students and 33 laypeople looked at eight randomly arranged images of smiles. The data were analyzed using color coded maps, scanpaths, and the Kruskal-Wallis test with a level of significance of 5%. RESULTS: Laypeople tended to observe the eyes, focusing more on the right than the left, and spent less time focusing on the diastema region than did the dental students. There were differences for the same magnitude of diastema within participant groups. As the width of the diastema increased, both students and laypeople focused more on the diastema region. CONCLUSIONS: The two groups of evaluators presented different perceptions of smiles in cases of diastema between the maxillary central and lateral incisors when evaluated using eye-tracking.


Assuntos
Diastema , Cor , Estética Dentária , Humanos , Incisivo/diagnóstico por imagem , Estudantes de Odontologia
6.
Oper Dent ; 45(5): 467-472, 2020 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-32243254

RESUMO

This article describes an indirect composite restoration technique for diastema closure and tooth lengthening with a noninvasive approach using regularly available materials such as silicone, composite resin, and an adhesive system. The procedure resulted in occlusal and functional improvement, with diastema closure, protrusive guide adjustment, and an increase in central incisor length. The procedure provided an adequate proportion of the central incisors with an esthetically natural appearance. It also resulted in simple, fast, and accurate manufacturing with a noninvasive esthetic indirect rehabilitation compared with more invasive preparation of ceramic veneers.


Assuntos
Facetas Dentárias , Diastema , Resinas Compostas , Diastema/terapia , Estética Dentária , Humanos , Incisivo
7.
Int. j. morphol ; 38(1): 222-225, Feb. 2020. tab
Artigo em Espanhol | LILACS | ID: biblio-1056425

RESUMO

RESUMEN: Diastema es un término latino de origen griego incorporado a Terminologia Anatomica bajo el código A05.1.03.078. Odontológicamente, es un espacio interdentario ubicado entre dientes adyacentes del arco dental, siendo su presencia considerada normal en el periodo de dentición mixta. Fueron consultados diccionarios de los idiomas español, griego y latín, de términos médicos y etimológicos, en búsqueda de las apariciones iniciales del término diastema y sus posteriores usos en la historia. La búsqueda reportó que Diastema ha sido utilizado para indicar una distancia o intervalo, referido a lugares, tiempos e incluso entre tonos musicales. En el área de las ciencias médicas, es un término que ha señalado la separación entre los dedos o el espacio virtual creado por la insuflación de los pulmones, siendo su mayor acercamiento a la morfología en el área veterinaria para designar el espacio que separa los dientes anteriores de posteriores, especialmente en roedores y rumiantes. Para ser consistentes con los lineamentos actuales de la Federative International Programme for Anatomical Terminology y los acuerdos terminológicos de los Simposios Ibero-Latinoamericanos de Terminologia Anatomica, Histologica y Embryologica, sugerimos el reemplazo del término Diastema por Spatium interdentale, como un avance en la precisión y descripción de la estructura incorporada a Terminologia Anatomica.


SUMMARY: Diastema is a latin term of greek origin incorporated into Terminologia Anatomica under the code A05.1.03.078. Odontologically, it is an interdental space located between teeth adjacent to the dental arch, its presence being normal in the period of mixed dentition. Dictionaries of the Spanish, Greek and Latin languages, of medical and etymological terms were consulted, in search of the initial occurrences of the term Diastema and its subsequent uses in history. The search reported that Diastema has been used to indicate a distance or interval, referring to places, times and even between musical tones. In the area of medical sciences, it is a term that has indicated the separation between the fingers or the virtual space created by insufflation of the lungs, being its closest approach to morphology in the veterinary area to designate the space that separates the incisors and molars tooth, especially in rodents and ruminants. To be consistent with the current guidelines of the International Federative Program of Anatomical Terminology and the terminological agreements of the Ibero-Latin American Symposia of Anatomical, Histological and Embryological Terminology, we suggest the replacement of the Diastema period with Spatium interdentale, as an advance in accuracy and description of the structure incorporated into Terminologia Anatomica.


Assuntos
Humanos , Diastema/patologia , Terminologia como Assunto , Odontologia
8.
Rev. Salusvita (Online) ; 39(1): 129-140, 2020.
Artigo em Português | LILACS | ID: biblio-1140262

RESUMO

Introdução: Atualmente, o apelo estético pela harmonização do sorriso faz com que os indivíduos motivem-se ao tratamento de diastemas dentais, principalmente em região anterior, tendo diversas opções de intervenção terapêutica para correção do problema. Objetivo: Realizar uma revisão de literatura acerca das possíveis formas terapêuticas para o tratamento de diastemas. Metodologia: Revisão de literatura por meio de busca bibliográfica nas bases de pesquisa online: PubMED, Medline, Lilacs, Scielo e Google Acadêmico, através do rastreio de artigos relevantes publicados entre o período de 2000 a 2019. Resultados: O diastema dental possui etiologia multifatorial, onde as principais causas são, frequentemente, devido à microdontia, má inserção do freio labial, e hábitos parafuncionais. Logo, o correto diagnóstico do fator causal do diastema deve ser investigado para que seja feito o melhor planejamento para seu tratamento, evitando assim recidivas. Diante disso, encontram-se na literatura diversas formas terapêuticas para a reabilitação, sendo a mais utilizada por meio da técnica restauradora direta com resina composta, porém relatam-se casos onde há a presença de grandes diastemas fazendo a associação da técnica restauradora direta com a motivação ortodôntica, e além desses, existem casos em que se necessita fazer a correção do freio labial para iniciar a reabilitação do tratamento para a correção dos diastemas. Conclusão: Com base na literatura, as diversas possibilidades terapêuticas se mostram bastantes eficazes para a solução dos diastemas dentais, entretanto, é necessário que o cirurgião-dentista faça o correto diagnóstico para aplicar a melhor opção terapêutica, garantindo maior segurança no resultado do fechamento do diastema.


Introduction: Currently the aesthetic appeal for harmonizing the smile makes individuals motivate themselves to treat dental diastemas, especially in the anterior region; where there are several options for therapeutic intervention to correct the problem. Objective: To carry out a literature review about the possible therapeutic forms for the treatment of diastemas. Methodology: The literature review through bibliographic search in the online research bases: PubMED, Medline, Lilacs, Scielo and Google Academic, through the screening of relevant articles published between 2000 and 2019. Results: The dental diastema has a multifactorial etiology, where the main causes are often due to microdontia, poor insertion of the lip brake, and parafunctional habits. Therefore, the correct diagnosis of the causal factor of the diastema must be investigated correctly so that the best planning for its treatment is made, thus preventing recurrences. In view of this, there are several therapeutic forms in the literature for rehabilitation, the most used by means of the direct restorative technique with composite resin, however cases are reported where there is the presence of large diastemas making the association of the direct restorative technique with orthodontic motivation, and in addition to these, there are cases in which it is necessary to make the correction of the lip brake to start the rehabilitation of the treatment for the correction of the diastemas. Conclusion: Based on the literature, the various therapeutic possibilities prove to be quite effective for the solution of dental diastemas, however, it is necessary for the dental sugeon make the correct diagnosis to apply the best therapeutic option, ensuring greater safety in the result of closing the diastema.


Assuntos
Diastema/cirurgia , Estética Dentária
9.
Acta Odontol Latinoam ; 32(2): 88-96, 2019 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-31664299

RESUMO

The aim of this study was to determine the differences in arch length, inter-canine distance, inter-premolar distance, intermolar distance and arch shape between dental discrepancies (crowding and spacing) in a sample of dental casts from the Afro-Colombian population of San Basilio de Palenque. An analytical, cross-sectional study was conducted on a convenience sample of 63 subjects aged 11 to 57years, of Afro-Colombian origin, with full dentition from first molar to first molar, without extensive caries or restorations, and excluding casts with defects due to loss. The differences between arch (upper and lower) variables were analyzed according to dental discrepancies. Plaster models digitalized with a TR1OS3 Mono scanner with exactitude (6.9 ± 0.9 pm) and precision (4.5 ± 0.9 pm) were analyzed with Orthonalyzer software. Statistical analyses were done on SPSS software (Version 20 for Windows) and Real Statistics. Spacing discrepancy of68.25% was found for upper arch and 66.66% for lower arch; crowding discrepancy of 19.04% for upper arch and 20.63% for lower arch, and an adequate ratio of 12.69% for both arches. No statistically significant difference (p>0.05) was found between arch parameters except for inter-premolar distance on the lower arch. The most frequent arch shape in the population was oval for both upper arch, with 76.19%, and lower arch, with 71.42%. Tooth size was larger in males than females but the difference was not statistically significant.


Assuntos
Arco Dental/patologia , Má Oclusão/etiologia , Coroa do Dente/patologia , Adolescente , Adulto , Cefalometria/estatística & dados numéricos , Criança , Colômbia/epidemiologia , Estudos Transversais , Coroas , Modelos Dentários , Diastema/etiologia , Feminino , Humanos , Masculino , Má Oclusão/epidemiologia , Má Oclusão/patologia , Maxila/patologia , Pessoa de Meia-Idade , Odontometria/estatística & dados numéricos , Tamanho do Órgão , Adulto Jovem
10.
Am J Orthod Dentofacial Orthop ; 156(3): 401-411, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31474270

RESUMO

A 24-year-old man presented with a severe skeletal class III malocclusion, associated with an anterior and posterior crossbite in the left side, upper and lower lip eversion, skeletal asymmetry, midline discrepancy, diastemas in the maxillary and mandibular dental arches, and agenesis of maxillary lateral incisors and canines with retained deciduous teeth. Treatment was performed with the use of the Win Lingual System. When the 0.016 × 0.022-inch NiTi archiwire was applied, the deciduous teeth were extracted and replaced with temporary crowns connected to the appliance. After the aligning, leveling, and diastema closure phases, a modified Le Fort II osteotomy, a mandibular setback with a bilateral sagittal split osteotomy and a genioplasty were performed. Implants were placed in the canine site through a flapless guided surgery, and cantilevered temporary bridges were delivered. Final prosthetic rehabilitation included veneers for the central incisors and zirconia-ceramic cantilevered bridges for the canine and lateral incisors. After 36 months of active treatment, the patient showed an Angle Class I molar and canine relationship and an ideal overbite and overjet. His profile had improved, lips were competent, and gingival levels were acceptable. The lateral radiograph and cephalometric analysis showed a good balance of the skeletal pattern, a good profile of the soft tissue, and proper inclinations of the maxillary and mandibular incisors in relation to maxilla and mandible. After 2 years of follow-up, the patient had a pleasant smile and no relapse, or joint or muscular pain.


Assuntos
Anodontia/complicações , Má Oclusão de Angle Classe III/terapia , Desenho de Aparelho Ortodôntico/instrumentação , Desenho de Aparelho Ortodôntico/métodos , Aparelhos Ortodônticos , Adulto , Cefalometria , Dente Canino , Implantação Dentária Endo-Óssea , Implantes Dentários , Modelos Dentários , Diastema/cirurgia , Diastema/terapia , Estética Dentária , Humanos , Incisivo , Lábio , Masculino , Má Oclusão de Angle Classe I/complicações , Má Oclusão de Angle Classe III/diagnóstico por imagem , Má Oclusão de Angle Classe III/reabilitação , Má Oclusão de Angle Classe III/cirurgia , Mandíbula/cirurgia , Maxila/cirurgia , Dente Molar , Procedimentos de Ancoragem Ortodôntica/instrumentação , Procedimentos de Ancoragem Ortodôntica/métodos , Braquetes Ortodônticos , Fios Ortodônticos , Osteotomia , Sobremordida/terapia , Radiografia Panorâmica , Técnicas de Movimentação Dentária/instrumentação , Técnicas de Movimentação Dentária/métodos , Adulto Jovem
11.
J Prosthodont ; 28(8): 855-860, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31472020

RESUMO

The present article describes the resin infiltration technique to address white spots lesions presented on anterior and premolar teeth of a young patient after orthodontic treatment and the digital workflow for planning a diastema closure on the maxillary anterior teeth using facial photographs, an intraoral scanner, a facially driven diagnostic waxing using a dental computer-aided design (CAD) software, and 3-piece additive manufactured (AM) clear silicone indices. The virtual design of the silicone indices was completed using an open-source CAD software and included a flexible clear buccal piece, flexible clear lingual piece, and rigid clear custom tray. The unique 3-piece index design allows a horizontal path of insertion, controlled uniform thickness of the indices, flexible and rigid material properties combination, accurate translation of the diagnostic waxing into the patient´s mouth, and digital storage of the designs.


Assuntos
Cárie Dentária , Diastema , Desenho Assistido por Computador , Humanos , Silicones , Fluxo de Trabalho
12.
Quintessence Int ; 50(9): 712-719, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31482154

RESUMO

The injectable composite resin technique is an indirect/direct method that uses a transparent silicone index for accurate and predictable translation of a diagnostic wax-up into composite restorations without the need for tooth preparation. This case report involves a 22-year-old man who presented with esthetic and functional problems associated with diastemas and insufficient tooth visibility. Clinical examination revealed inadequate canine guidance in lateral excursion. The treatment plan included the fabrication of composite veneers for the maxillary incisors and canines. A wax-up was prepared by simulation of functional movements on an articulator, and a transparent silicone index was prepared after checking a mock-up in the oral cavity. The teeth were restored with flowable composite injected and polymerized through the transparent silicone index. The conventional technique was modified by cutting the silicone index at the gingival margin, using individual mock-ups as space holders, and the use of gingival retraction cords. The final outcomes were elongated teeth for increased visibility, closed diastemas, and reshaped canines for adequate guidance in lateral excursion. A protective splint for night-time wear was fabricated and delivered to ensure long-term stability. The patient did not exhibit any soft tissue inflammation or significant wear during a 24-month follow-up period. The technique described is minimally invasive and inexpensive, and it can be used for definitive as well as translational restorations. The treatment goals are to establish adequate function and esthetics, with advantages including minimal tooth structure loss and cost-effectiveness. Stable and predictable results can be achieved with proper planning and a careful workflow.


Assuntos
Diastema , Estética Dentária , Adulto , Resinas Compostas , Facetas Dentárias , Seguimentos , Humanos , Incisivo , Masculino , Adulto Jovem
13.
Dent Med Probl ; 56(2): 179-183, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31140763

RESUMO

BACKGROUND: Diastema can be closed using conservative and non-conservative techniques. Composite resin wings and ceramic veneers are the most common treatment options if there is no indication for orthodontic treatment. A novel ultra-conservative technique has been introduced to the practice, i.e., porcelain sectional veneers can be fabricated with no or minimum preparation. However, porcelain is known for its poor mechanical properties and the long-term survival of such restorations is questionable. OBJECTIVES: This paper aimed to investigate the mechanical aspects of porcelain sectional veneers by means of the finite element method (FEM). MATERIAL AND METHODS: A three-dimensional (3D) model of porcelain sectional veneers on the upper central incisors with diastema was obtained by the reversed engineering method starting from a cone-beam computed tomography (CBCT) image. A 100 N occlusal force was applied parallel and 135° to the longitudinal axis, respectively. For each direction the force was applied once with direct contact and again with no contact with the porcelain sectional veneers. For each of the resulting 4 scenarios, a 3D finite element analysis was simulated and the maximum equivalent von Mises stress was compared to porcelain flexural strength. RESULTS: Higher stresses were detected when the force was applied on the porcelain sectional veneers and they were increased dramatically with the inclined force. CONCLUSIONS: Direct occlusal contact has to be avoided when using porcelain sectional veneers and the margin positions must be chosen carefully. The occlusal scheme must be noted carefully before choosing this type of restoration.


Assuntos
Porcelana Dentária , Diastema , Facetas Dentárias , Análise de Elementos Finitos , Humanos , Estresse Mecânico
14.
Int J Esthet Dent ; 14(2): 156-164, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31061996

RESUMO

Historically, preparations for ceramic veneers have varied from extremely aggressive to a minimal reduction or a lack of preparation. Today, we are moving toward minimally invasive dentistry with the philosophy that less is more. Less tooth reduction means more adhesion and clinical longevity. What must be considered when performing minimally invasive preparations is that in a significant number of cases the dental element will receive a veneer that will modify its final contour. This is quite common in cases of conoid teeth, diastemas or loss of dental structure by abrasion, erosion or attrition. The aim of this article is to present a step-by-step protocol to achieve conservative preparations for ceramic veneers, called the mock-up driven technique. This technique takes into account the final contour desired for the veneer, and results in considerably less invasive dental preparations.


Assuntos
Facetas Dentárias , Diastema , Cerâmica , Porcelana Dentária , Humanos , Preparo do Dente
15.
J Healthc Eng ; 2019: 1075097, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30944717

RESUMO

The aim of this study was to clarify the effect of attachment on tooth movement produced by a plastic aligner. Closing of a diastema, in which the maxillary right and left central incisors moved bodily, was simulated using a finite element method. Long-term orthodontic movements of the maxillary dentition were simulated by accumulating the initial displacement of teeth produced by elastic deformation of the periodontal ligament. The incisor tipped and rotated just after placement of the aligner irrespective of the attachment. After a sufficiently long time, the incisor was upright and moved bodily in the aligner with attachment, but the incisor remained tipped in the aligner without attachment. It was demonstrated that the attachment was effective for achieving bodily movement.


Assuntos
Diastema/terapia , Maxila/fisiologia , Ortodontia/métodos , Plásticos/química , Técnicas de Movimentação Dentária , Processo Alveolar , Simulação por Computador , Análise de Elementos Finitos , Humanos , Incisivo , Ligamento Periodontal/fisiologia , Distribuição de Poisson , Estresse Mecânico
16.
Compend Contin Educ Dent ; 40(4): 246-250, 2019 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-30938539

RESUMO

Orthodontic intrusion can be utilized to assist clinicians in meeting various esthetic, functional, and biomechanical problems. In this full-mouth reconstruction case, such therapy was used to initiate a multiphase treatment approach for an adult patient who presented with numerous concerns about her function and appearance, including a significant diastema, active wear on her lower anterior teeth, and chipped crowns. A variety of procedures conducted over a period of 6 years that comprised implant placement, gingival recontouring, orthodontic repositioning, and crown lengthening, along with the use of a Kois deprogrammer to equilibrate the final restorations, were utilized to achieve a successful outcome.


Assuntos
Diastema , Estética Dentária , Adulto , Coroas , Feminino , Gengiva , Humanos , Coroa do Dente
17.
Vet J ; 246: 98-102, 2019 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-30902197

RESUMO

Equine dental disease remains a widespread affliction in domestic horses, with the potential to cause significant welfare problems. This retrospective study aimed to increase understanding of this aspect of equine health by examining dental records of 932 horses, taken from a 1-year period of first-opinion practice in south-western England and southern Wales. Three grossly-identifiable dental diseases were analysed: equine periodontal disease, diastemata and peripheral caries. The prevalence of active periodontal disease, diastemata and peripheral caries were 13.9%, 8.7% and 8.2%, respectively. Periodontal disease was more common in the mandibular than maxillary arcades (P<0.001) and in the premolar (06-08) than molar (09-11) cheek teeth (P<0.001). Diastemata were also observed more frequently in the mandibular than the maxillary arcades (P<0.001) and in premolar than molar cheek teeth (P<0.001). Peripheral caries were significantly more common in molar than premolar cheek teeth (P<0.001). A positive association was demonstrated between periodontal disease and diastemata (Exp(B)=4.22; P<0.001). Increasing age was a significant risk factor for periodontal disease (P<0.001) and diastemata (P<0.001). Sex was not conclusively established as a risk factor for any dental disease.


Assuntos
Diastema/epidemiologia , Doenças dos Cavalos/epidemiologia , Doenças Periodontais/veterinária , Fatores Etários , Animais , Feminino , Cavalos , Masculino , Doenças Periodontais/epidemiologia , Prevalência , Fatores de Risco , Reino Unido/epidemiologia
18.
Arch. Health Invest ; 8(3): 130-133, mar. 2019. ilus
Artigo em Português | BBO - Odontologia | ID: biblio-1006787

RESUMO

A abordagem correta e precoce de paciente infantil frente a alteração de desenvolvimento como a presença de dentes supranumerários modificando a oclusão normal tem apresentado resultados satisfatórios e importantes para manter a função e estética da cavidade bucal. O objetivo deste trabalho é apresentar um caso clínico com tratamento multidisciplinar envolvendo dente supranumerário e diastema interincisal em paciente infantil. Paciente com 7 anos de idade, gênero masculino, compareceu a clínica de Odontopediatria da Faculdade Morgana Potrich, com a queixa de um dente da frente torto. O exame clínico e radiográfico revelou a presença de um mesiodens causando um diastema na região anterior da maxila, com evidentes transtornos estéticos. O plano de tratamento estabelecido foi a remoção cirúrgica do dente supranumerário e tratamento ortodôntico para fechamento do diastema, possibilitando um resultado funcional e estético satisfatório, melhorando a qualidade de vida deste paciente. Dessa forma, o tratamento em paciente com pouca idade propiciou uma intervenção simples e com boa resolubilidade, devolvendo sua autoestima e bem-estar no seu convívio social(AU)


The correct and early approach on children patient in relation to developmental alteration as the presence of supernumerary teeth modifying normal occlusion has presented satisfactory and important results to maintain the function and aesthetics of the oral cavity. The objective of this work is to present a clinical case with multidisciplinary treatment involving supernumerary tooth and interincisal diastema in a child patient. A 7-year-old male patient attended the pediatric dentistry clinic at Morgana Potrich College, complaining of a crooked front tooth. The clinical and radiographic examination revealed the presence of a mesiodens causing a diastema in the anterior region of the maxilla, causing evident aesthetic disorders. The treatment plan established was the surgical removal of the supernumerary tooth and orthodontic treatment for closure of the diastema, allowing a satisfactory functional and aesthetic result, improving the quality of life of this patient. Thus, the treatment in a patient at young age provided a simple and good solvability intervention, giving back his self-esteem and well-being in his social life(AU)


El abordaje correcto y temprano del paciente infantil frente a las alteraciones de desarrollo como la presencia de dientes supernumerarios que modifican la oclusión normal ha presentado resultados satisfactorios e importantes para mantener la función y estética de la cavidad oral. El objetivo de este trabajo es presentar un caso clínico con tratamiento multidisciplinar que involucra un diente supernumerario y diastema interincisal en un paciente infantil. Paciente con 7 años de edad, género masculino, compareció a la clínica de odontopediatría de la facultad Morgana Potrich, con queja de un diente al frente del otro. Al examen clínico y radiográfico se reveló la presencia de un mesiodens causando diastema en la región anterior del maxilar, con evidentes trastornos estéticos. El plan de tratamiento establecido fue la remoción quirúrgica del diente supernumerario y tratamiento ortodontico para cierre del diastema, posibilitando un resultado funcional y estético satisfactorio, mejorando la calidad de vida de este paciente. De esta forma, el tratamiento en un paciente con poca edad propicio una intervención simple y con buena resolución, devolviendo su autoestima y bienestar en su convivencia social(AU)


Assuntos
Humanos , Masculino , Criança , Ortodontia , Dente Supranumerário/cirurgia , Diastema , Dente Supranumerário , Diastema/terapia , Estética Dentária , Reabilitação Bucal
19.
Chin J Dent Res ; 22(1): 65-68, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30746535

RESUMO

A 27-year-old patient with a history of maxillary anterior tooth trauma presented with a maxillary central diastema between tooth- and implant-supported prostheses that had been in use for 5 years. The all-ceramic crowns were placed in 2012 after rigorous occlusal adjustment. Evaluations were carried out at 0, 2, 3, 4 and 5 years post restoration. The central diastema between the natural teeth and the implant-supported prosthesis on teeth 11 and 12 was first observed 2 years after implantation. After 5 years, the distance was found to have increased, with anterior occlusion and esthetic changes having taken place. The following possible causes were discussed: occlusal problems, anterior traumatic effects, the possible impact of guided bone regeneration (GBR) on the adjacent natural teeth and natural movement. More predictive information should be given to patients with implant-supported prostheses and natural teeth so that they are fully informed of the impact of any necessary clinical compromise and are aware of the modifications that may occur to their natural dentition.


Assuntos
Diastema , Adulto , Coroas , Prótese Dentária Fixada por Implante , Seguimentos , Humanos , Maxila
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