ABSTRACT
Tendo em vista a importância da relação Dentística Restauradora e Periodontia na Odontologia atual, o presente estudo demonstrou o relato de um caso clínico realizado no Complexo Odontológico do Centro Universitário da Serra Gaúcha (FSG), retratando um procedimento de restauração transcirúrgica em um paciente cujo elemento 13 estava comprometido com uma cavidade subgengival disto-palatino, sendo a resina composta o material restaurador de escolha. Este estudo teve como objetivo apresentar um caso clínico demonstrando a técnica de restauração transcirúrgica e a integração do planejamento entre Periodontia e Dentística Restauradora realizado na Clínica de Odontologia do Centro Universitário da Serra Gaúcha -FSG. Este trabalho mostrou a importância da realização de uma técnica cirúrgica e restauradora correta por parte dos cirurgiões-dentistas, assim como na verificação de que os tecidos periodontais podem reagir de forma positiva à presença de materiais restauradores adesivos posicionados subgengivalmente(AU)
In view of the importance of the restorative dentistry and periodontics relationship in current dentistry, the present study demonstrated the report of a clinical case carried out in the Dental Complex of the Centro Universitário da Serra Gaúcha - FSG, portraying a transsurgical restoration procedure in a patient whose element 13 was compromised with a subgingival cavity of this-palatine, the composite resin being the restorative material of choice. This study aimed to present a clinical case demonstrating the technique of transsurgical restoration and the integration of planning between Periodontics and Restorative Dentistry carried out at the Dentistry Clinic of the University Centro Universitário da Serra Gaúcha - FSG. This study showed the importance of performing a correct surgical and restorative technique by dentists, as well as in verifying that periodontal tissues can react positively to the presence of adhesive restorative materials positioned subgingival(AU)
Subject(s)
Humans , Male , Aged , Periodontium , Crown Lengthening , Composite Resins , Periodontics , Dentistry, OperativeABSTRACT
A estética tem um papel importante na aceitação e autoestima das pessoas e, em virtude disso, os pacientes buscam cada dia mais ter um sorriso harmonioso. As reabilitações estéticas devem envolver um planejamento completo, atrelando função e estética, avaliando tamanho dos dentes, perfil e alturas gengivais, altura do sorriso e corredor bucal. Por conta disso, a odontologia nos permite uma série de abordagens terapêuticas diferentes que chegam a resultados satisfatórios para o paciente. Sendo assim, o presente trabalho tem como objetivo descrever um relato de caso de uma paciente com queixa estética do seu sorriso devido à diferentes tonalidades, formas e tamanhos dos dentes. Após anamnese, exame clínico e radiográfico, o plano de tratamento proposto foi de harmonizações periodontal com aumento de coroa e enxerto gengival, além de coroas em cerâmicas de dissilicato de lítio. Dentro desse contexto, mostra-se que uma abordagem multidisciplinar para reabilitação estética e funcional do sorriso é fundamental, a qual nos proporciona equilíbrio e naturalidade entre estética branca e vermelha no resultado do tratamento reabilitador(AU)
Aesthetics plays an important role in people's acceptance and self-esteem and, as a result, patients increasingly seek to have a harmonious smile. Aesthetic rehabilitations must involve a complete planning, linking function and aesthetics, evaluating tooth size, gingival profile and heights, smile height and buccal corridor. Because of this, dentistry allows us a series of different therapeutic approaches that reach satisfactory results for the patient. Therefore, the present work aims to describe a case report of a patient with an aesthetic complaint of her smile due to different shades, shapes and sizes of teeth. After anamnesis, clinical and radiographic examination, the proposed treatment plan was periodontal harmonization with crown augmentation and gingival graft, in addition to lithium disilicate ceramic crowns. Within this context, it is shown that a multidisciplinary approach to the aesthetic and functional rehabilitation of the smile is fundamental, which provides us with balance and naturalness between white and red aesthetics in the result of the rehabilitation treatment(AU)
Subject(s)
Humans , Female , Middle Aged , Ceramics , Crowns , Esthetics, Dental , Gingiva/transplantation , Crown Lengthening , Dental Veneers , Gingivoplasty , LithiumABSTRACT
@#An attractive smile enhances the appearance and acceptance of an individual in society. Gum exposure more than 3 mm is generally considered unattractive and known as a gummy smile, which is usually considered an aesthetic problem. At present, patients have a greater desire for more aesthetic results that may influence the planning of dental treatments. This case report aimed to describe the surgical sequence of aesthetic crown lengthening to improve smile profile and eliminate gummy smile. We reported a 21-year-old non-smoking woman with no pertinent medical history who presented with a chief complaint of an unattractive smile due to excessive gingival display. The gingival display in the smile was 5 mm, and the width to height ratio of the central incisor was 121%. Neither periodontal problems nor teeth mobility was detected. Assessment for the condition was excessive gingival display due to altered passive eruption. The overall prognosis for this case was good. The primary treatment plan proposed to the patient was an aesthetic crown lengthening. Altered passive eruption class I subtype A was a case conclusion, and aesthetic crown lengthening with gingivectomy without osseous reduction was the selected treatment. In conclusion, aesthetic crown lengthening should be considered as a surgical component of aesthetic therapy to improve smile profile and eliminate gummy smile.
Subject(s)
Crown Lengthening , GingivectomyABSTRACT
Una de las causas de la evolución de la periodontitis es la formación de defectos óseos y pérdida de inserción clínica. Una manera de eliminar el defecto intraóseo y su bolsa periodontal es eliminar las paredes de hueso que componen el defecto para colocar el complejo dentogingival en una posición más apical. La cirugía ósea es un procedimiento periodontal resectivo que involucra la modificación del tejido óseo del soporte dental, la cual es una modalidad del tratamiento periodontal quirúrgico que puede utilizarse para eliminar eficazmente los defectos óseos periodontales para estabilizar la inserción periodontal. El objetivo del presente estudio es realizar una revisión de la literatura sobre las consideraciones actuales, técnicas y principios de la cirugía ósea resectiva en el paciente periodontalmente comprometido (AU)
One of the causes of the evolution of periodontitis is the formation of bone defects and loss of clinical attachment, where one way to eliminate the intraosseous defect and its periodontal pocket is to eliminate the bone walls that make up the defect to place the dentogingival complex in a more apical position. Bone surgery is periodontal surgery that involves the modification of the supporting bone tissue of the teeth, which is a modality of surgical treatment that can be used to effectively eliminate periodontal defects and stabilize the periodontal insertion. The aim of the present study is to conduct a literature review about the considerations, techniques and principles of resective bone surgery in the periodontally compromised patient (AU)
Subject(s)
Humans , Periodontitis/surgery , Alveolar Bone Loss/surgery , Alveolar Process/surgery , Osteotomy/methods , Periodontal Pocket/surgery , Surgical Flaps , Crown Lengthening/methodsABSTRACT
Este trabalho tem como objetivo apresentar um relato de caso no qual a paciente se queixava de desarmonia do sorriso, desta forma o aumento de coroa clínica estética e o retalho reposicionado coronalmente, foram escolhidos juntamente com a reanatomização em resina composta, para restabelecer a harmonia gengival e dentária. A paciente apresentava contorno gengival desigual, no qual uma recessão gengival no dente 22 e coroas curtas e desproporcionais nos demais incisivos anteriores foram observadas, assim como uma vestibularização de todos os dentes superiores anteriores, no qual ela se recusou a tratar com Ortodontia. Foram reanatomizadas e restabelecidas por meio do uso de resina composta pela "técnica de facetas direta". Este caso clínico evidenciou a importância da associação de técnicas de cirurgia periodontal e do trabalho multidisciplinar para que todas as queixas pudessem ser devidamente sanadas e o caso concluído com sucesso dentro dos anseios e expectativas da paciente. (AU)
This work aims to present a case report in which the patient complained of smile disharmony, and in this way the aesthetic clinical crown increase and the coronally repositioned flap were chosen together with composite resin reanatomization to restore harmony gingival and dental. The patient had an unequal gingival contour, in which a gingival recession on tooth 22 and short and disproportional crowns on the other anterior incisors were observed, as well as a vestibularization of all the anterior superior teeth, in which she refused to treat with orthodontics. They were reanatomized and restored through the use of resin composed by the "direct facet technique". This clinical case evidenced the importance of the association of techniques of periodontal surgery and of the multidisciplinary work so that all the complaints could be duly remedied and the case concluded successfully within the patient's expectations and expectations. (AU)
Subject(s)
Humans , Female , Adult , Crown Lengthening , Esthetics, Dental , GingivaABSTRACT
With the evolution of the computer-aided design/computer-aided manufacturing (CAD/CAM) technology, the intraoral scanners are playing an increasingly important role, as they are the first step towards a completely digital workflow. The CAD/CAM double scanning technique has been used to transfer the information from provisional restorations to definitive restorations. In this case, a 67-year-old male with esthetically compromised anterior teeth, generalized severe attrition of teeth, and reduced vertical dimension was treated with full mouth rehabilitation including a re-establishment of the lost vertical dimension of occlusion assisted by the crown lengthening procedure. The provisional restorations were fabricated using an intraoral scanner and the CAD/CAM double scanning technique. After the period of adaption, the definitive monolithic zirconia restorations were delivered. The CAD/CAM double scanning technique successfully transferred the occlusal and morphological characteristics, obtained from the provisional restorations, to the definitive restorations.
Subject(s)
Aged , Humans , Male , Crown Lengthening , Dentition , Mouth Rehabilitation , Mouth , Tooth , Tooth Wear , Vertical DimensionABSTRACT
Crown lengthening is one of the most common surgeries in clinical practice. Under the premise of ensuring the biologic width, the adequate crown is exposed by resecting the periodontal soft tissue and (or) hard tissue to meet the prosthodontic and (or) aesthetic requirements. Considering the various advantages of oral laser, such as safe, precise, minimally invasive and comfort, laser has become a promising technology which can be used to improve the traditional crown lengthening. In this review, the principles and characteristics of laser application in crown lengthening, especially in the minimally invasive or flapless crown lengthening will be reviewed. Its pros and cons will also be discussed.
Subject(s)
Crown Lengthening , Crowns , Esthetics, Dental , Tooth , Tooth CrownABSTRACT
In the oral cavity, the teeth undergo wear and corrosion throughout their lives. Progressive and constant tooth wear is a natural phenomenon of aging, but wear and corrosion due to specific factors are pathological factors. It can cause pathological damage of the occlusal surface, aesthetic problems, dimensional loss and jaw joint disorders. This case is a 26-year-old female patient with general tooth abrasion and erosion on the entire dentition. Diagnostic wax-up was fabricated based on the information including digital facial analysis, physiological stabilization, and evaluation of anterior crown length. Through the digital analysis, the necessary guides for crown lengthening were prepared and the mastication function and esthetics were evaluated by using temporary crowns. Definitive prosthesis was fabricated with the zirconia restorations. The results were satisfactory when they were observed 3 months of follow-up.
Subject(s)
Adult , Female , Humans , Aging , Corrosion , Crown Lengthening , Crowns , Dentition , Esthetics , Follow-Up Studies , Jaw , Joints , Mastication , Mouth Rehabilitation , Mouth , Prostheses and Implants , Tooth Abrasion , Tooth Erosion , Tooth Wear , ToothABSTRACT
RESUMEN: Introducción: Uno de los procedimientos realizados con mayor frecuencia para el restablecimiento de la estética en la zona anterosuperior es el alargamiento de corona, el cual está indicado ante la presencia de una longitud insuficiente de la corona clínica de un diente, cuando existe caries o fracturas subgingivales y para la mejora de la estética en pacientes con margen gingival desigual. Objetivo: El objetivo de este artículo es presentar el alargamiento de corona estético realizado en una paciente que presentaba márgenes discrepantes y pérdida de las papilas en la zona anterosuperior, la cual fue remitida del área de prótesis para poder realizar posterior rehabilitación protésica. Resultados: Mediante el procedimiento quirúrgico se logró la corrección y restablecimiento de los márgenes gingivales. Conclusiones: La zona anterosuperior es el área estéticamente más comprometida, por lo que es indispensable la planeación interdisciplinaria del tratamiento para asegurar el éxito del mismo.
ABSTRACT: Introduction: One of the most frequently performed procedures for aesthetics restoration in the maxillary anterior area is the crown lengthening, which is indicated in the presence of an insufficient length of the clinical crown of a tooth, of cavities or subgingival fractures and for the improvement of aesthetics in patients with uneven gingival margin. Objective: The aim of this article is to present the aesthetic crown lengthening performed in a patient with discrepant margins and loss of the papillae in the maxillary anterior area, referred from the prosthesis department for subsequent prosthetic rehabilitation. Results: Through the surgical procedure, the correction and restoration of the gingival margins were achieved. Conclusions: The maxillary anterior area is the most aesthetically compromised area, which is why the interdisciplinary planning of the treatment is essential to ensure its success.
Subject(s)
Humans , Female , Adult , Prostheses and Implants , Prosthodontics , Crown Lengthening , Crowns , Esthetics, DentalABSTRACT
Objetivo: Mostrar una alternativa de tratamiento para las fracturas coronorradiculares complicadas, que restablece la función y la estética de las piezas traumatizadas. Caso clínico: Una paciente de 16 años se presentó en la guardia del Centro Odontológico OSEP tras haber sufrido un accidente vial que le produjo un traumatismo dentoalveolar. El diagnóstico fue fractura coronaria sin exposición pulpar de la pieza dentaria 12 y fractura coronorradicular complicada de la pieza 11. El tratamiento incluyó restauración con resina compuesta de la pieza 12 y endodoncia, extrusión ortodóntica, alargamiento coronario y rehabilitación con perno de fibra de cuarzo y corona de resina compuesta de la pieza 11. Conclusiones: El tratamiento de las fracturas coronorradiculares representa un desafío para el odontólogo. Los resultados del tratamiento, en este paciente, fueron excelentes, ya que lograron devolver estética y función (AU)
Aim: To show an alternative treatment for complicated crown-root fractures, which restores function and aesthetics of the traumatized teeth. Case report: This paper reports the case of a 16-yearold girl who attends the OSEP Dental Center, stating that she had suffered a traffic accident resulting in a dentoalveolar trauma. The diagnosis was a coronary fracture without pulp exposure of tooth 12, and complicated crown-root fracture of tooth 11. Treatment included composite resin restoration of tooth 12 and endodontic, orthodontic extrusion, crown lengthening and rehabilitation with quartz fiber post and composite resin crown of tooth 11. Conclusions: The treatment of crown-root fractures poses a challenge for the dentist. The results of the treatment in this patient were excellent, and aesthetics and function were restored (AU)
Subject(s)
Humans , Female , Adolescent , Crown Lengthening , Orthodontic Appliances , Patient Care Team , Tooth Fractures , Tooth Injuries , Tooth Root , Argentina , Composite Resins , Post and Core Technique , Quartz , Tooth Crown , Tooth SocketABSTRACT
A proposta desta revisão da literatura foi avaliar as técnicas empregadas no afastamento gengival para prótese dental incluindo métodos mecânicos, químicos-mecânicos e cirúrgicos. A técnica de afastamento gengival deve ser previamente avaliada pelo profissional e a sua indicação, dependerá de cada situação clínica. Nesta revisão foram apresentadas as vantagens e desvantagens das técnicas de afastamento gengival incluindo fio afastador embebido ou não em soluções químicas, técnicas cirúrgicas, procedimentos a base de laser, curetagem gengival e eletro cirurgia. Após a realização desta revisão verificamos que o método químico-mecânico é o mais utilizado pelos profissionais. Atualmente podemos considerar que mesmo com a utilização de tecnologias mais elaboradas, como por exemplo scanners intraorais, quando o término do preparo dental estiver ao nível gengival ou subgengival se faz necessário o afastamento gengival. Para atingir o sucesso de uma prótese dental e importante coexistir uma harmonia entre a prótese e os tecidos periodontais circunvizinhos. (AU)
The aim of this review was to assess the use of gingival retraction methods in the fixed tooth supported prosthesis including mechanical, chemicals-mechanical and surgical methods. The choice of the best gingival retraction technique should be considered previously by the professional and it depends of each individual clinical conditions. In this review were discussed the advantages and the disadvantages of each gingival retraction technique including mechanical, chemical and surgical methods. In this review, we could understand that chemicals-mechanical technical is the most indicate by dentists. Nowadays, we can consider that even with the hightech use in dental area, such as intraoral scanners, when the margin of the restoration is placed sub-gingivally the gingival retraction should be considered. For the successful in dental prosthesis, a healthy coexistence between the restoration and their surrounding periodontal structure should be the goal of a prosthodontist. (AU)
Subject(s)
Subgingival Curettage , Oral Health , Crown Lengthening , Dental Prosthesis , GingivaABSTRACT
Clinical crown lengthening procedure would be an effective method for overcoming adverse clinical condition such as short abutment length. There are three kinds of methods in clinical crown lengthening, those are, surgical crown lengthening, orthodontic extrusion and surgical extrusion. Clinicians have to try their best to choose a proper method among those for favorable results. This report aims to review the considerations in each method with various cases and to suggest a decision flow for appropriate selection.
Subject(s)
Crown Lengthening , Crowns , Methods , Orthodontic ExtrusionABSTRACT
It is reported that the causes of unaesthetic proportion of anterior teeth vary widely. Especially, when the unaesthetic tooth proportion of the mandibular incisors arises due to the wear of the anterior teeth accompanied by the compensation of the alveolar bone, it may cause serious functional and aesthetic problems. In such case, it should be considered that the evaluation of vertical dimension and tooth proportion as well as smile line, soft tissue and hard tissue morphology. And, increase of vertical dimension or clinical crown lengthening followed by prosthodontic restorations is needed to improve the interdental mesial/distal, width/length ratio considering the anterior guidance. This case report demonstrates functional and aesthetic improvements through systematic diagnosis and treatment procedures in a 48-year-old male patient with unaesthetic anterior teeth proportion because of tooth wear accompanied by the compensation of alveolar bone and defect of several central incisors due to chronic periodontitis.
Subject(s)
Humans , Male , Middle Aged , Chronic Periodontitis , Compensation and Redress , Crown Lengthening , Diagnosis , Esthetics , Incisor , Tooth Wear , Tooth , Vertical DimensionABSTRACT
El objetivo de este trabajo consiste en describir las distintas lesiones cervicales no cariosas, la abrasión, la erosión y la abfracción. Se desarrollarán en detalle su etiología, localización y características clínicas. Se mencionarán los diferentes procedimientos a realizar para su prevención y los materiales a utilizar para su restauración.
This article describes the different types of non-cariouscervical lesions, for example abrasion, erosionand abfraction. We will discuss their etiology, location and clinical features in detail. We will describe the procedures to prevent them, aswell as the materials used for their restoration.
Subject(s)
Humans , Tooth Cervix/injuries , Tooth Erosion/etiology , Tooth Erosion/prevention & control , Tooth Erosion/therapy , Tooth Abrasion/etiology , Tooth Abrasion/prevention & control , Tooth Abrasion/therapy , Tooth Wear , Crown Lengthening/methods , Tooth Attrition/etiology , Tooth Attrition/prevention & control , Tooth Attrition/therapy , Fluorides, Topical/administration & dosage , Tooth Remineralization/methods , Preventive Dentistry , Dental Occlusion , Malocclusion/prevention & controlABSTRACT
Atualmente, a estética periodontal ou estética vermelha tem sido muito discutida e valorizada na busca pela harmonia do sorriso. Em situações de erupção passiva alterada, ou seja, existência de grande exposição de gengiva acompanhada de coroas clínicas curtas, há uma indicação precisa para a execução de aumento de coroa clínica. A Odontologia estética reabilitadora exerce um papel fundamental no tratamento multidisciplinar. Este trabalho teve como objetivo relatar um caso clínico de sorriso gengival causado pela erupção passiva alterada, associando reabilitação estética com facetas dentárias. Após a conclusão do tratamento, foi possível afirmar que a interação Prótese/Periodontia foi de fundamental importância para a obtenção do resultado final esperado pela paciente.
Nowadays, the periodontal or red esthetics has been highlightened in the search of smile harmony. In cases of altered passive eruption, which means the existence of great gum exhibition and short clinical crowns, there is precise indication for crown lengthening. Esthetic dentistry has a fundamental role in the multidisciplinary treatment. This paper reports on a clinical case of gummy smile due to passive eruption receiving an oral rehabilitation with laminate veneers. After treatment delivery, it was possible to recognize that the Prosthodontic/Periodontal relationship is of critical importance for the patient's desired outcome.
Subject(s)
Humans , Female , Adult , Crown Lengthening , Dental Veneers , Diastema , Esthetics, Dental , Osteotomy , PeriodonticsABSTRACT
The restoration of endodontic tooth is always a challenge for the clinician, not only due to excessive loss of tooth structure but also invasion of the biological width due to large decayed lesions. In this paper, the 7 most common clinical scenarios in molars with class II lesions ever deeper were examined. This includes both the type of restoration (direct or indirect) and the management of the cavity margin, such as the need for deep margin elevation (DME) or crown lengthening. It is necessary to have the DME when the healthy tooth remnant is in the sulcus or at the epithelium level. For caries that reaches the connective tissue or the bone crest, crown lengthening is required. Endocrowns are a good treatment option in the endodontically treated tooth when the loss of structure is advanced.
Subject(s)
Connective Tissue , Crown Lengthening , Crowns , Epithelium , Molar , Periodontitis , ToothABSTRACT
El concepto de "espacio biológico" ha sido ampliamente descrito por periodoncistas y odontólogos generales. Se denomina "espacio biológico" a la unión dentogingival que está constituida por el epitelio de unión y el tejido conectivo de inserción de la encía. Cuando se habla de "espacio biológico" no sólo se debe pensar en la longitud de la inserción gingival, sino que se debe relacionar con el grosor de la encía, el biotipo periodontal y la profundidad del surco gingival, puesto que todos estos parámetros se integran, y deben ser tomados en cuenta para comprender de manera exacta la morfología del tejido gingival supracrestal. La variabilidad de dimensiones de los componentes epitelial y conectivo que existe entre individuos, e incluso dentro del mismo individuo, es otro factor que debe ser considerado. El mantenimiento de una relación correcta de los tejidos periodontales con los márgenes de las restauraciones depende, además de la óptima adaptación de la restauración, también de la ausencia de invasión del espacio biológico, que es ocupado por los tejidos blandos presentes en la unión dentogingival. Estas invasiones llevan a complicaciones como la inflamación gingival, pérdida de hueso alveolar y recesiones gingivales. Esta revisión discute el concepto de "espacio biológico", su relación con la salud periodontal, la odontología restauradora y su importancia en el mantenimiento de una restauración a largo plazo. (AU)
The concept of biologic width has been extensively described by general practitioners and periodontists. The biologic width is conformed by the dentogingival junction which is formed by the junctional epithelium and connective tissue attachement. When talking about biologic width, we should not only think about the length of the gingival attachment, it must be related to the thickness of the gingiva, periodontal biotype and the depth of the gingival sulcus, since these parameters are integrated and must be taken into account to accurately understand the morphology of the supracrestal gingival tissue. Variability in dimensions of epithelial and connective tissue components between individuals and even within the same individual, is another factor that must be considered. Maintaining a correct relationship of periodontal tissues with restoration margins depends on the optimum adaptation of the restoration. Also, to the absence of invasion of biologic width which is occupied by the soft tissue present in the dentogingival junction. These violations lead to complications like gingival inflammation, alveolar bone loss and gingival recession. This review discusses the concept of biologic width and its relationship to periodontal health and restorative dentistry. The importance in maintaining a long-term restoration will also be addressed. (AU)
Subject(s)
Humans , Periodontics , Crown Lengthening , Connective Tissue , Epithelial AttachmentABSTRACT
Incisivos laterais conoides apresentam a coroa dental com dimensões reduzidas e formato cônico, prejudicando a harmonia do sorriso. As facetas de porcelana têm se mostrado uma opção restauradora estética, conservadora e com resultados duradouros para essas situações clínicas. O presente relato de caso descreve o tratamento multidisciplinar para a recuperação estética do sorriso. O tratamento consistiu no clareamento dental, confecção de facetas de porcelana e realização de cirurgia de aumento de coroa clínica. O resultado final demonstra melhora da estética do sorriso com procedimentos minimamente invasivos...
Peg-shaped lateral incisors have small-sized, conical-shaped tooth crowns, which compromise the harmony of the smile. Porcelain veneers are an esthetic and conservative restorative option for this situation, with long-lasting results. This clinical report describes a multidisciplinary treatment to reestablish the esthetic of the smile. The treatment comprised in tooth bleaching, porcelain veneers and crown lengthening surgery. The final result demonstrates improved aesthetics with minimally invasive procedures...
Subject(s)
Humans , Female , Young Adult , Crown Lengthening , Dental Porcelain , Dental Veneers , Esthetics, Dental , Tooth Abnormalities , Tooth BleachingABSTRACT
Functional orthopedic appliances used for Class II malocclusion treatment, usually work by guiding jaws growth and modifying dental positions. Among these dentoalveolar effects, it is the lower incisors buccal tipping, that helps to improve the overjet, but may cause gingival recessions, especially when associated with other etiological factors. The objective of this study was to evaluate the clinical crown length of the lower anterior teeth in individuals with Angle's Class II malocclusion, after treatment with Fränkel-2 function regulator appliance (RF-2). Fifty Class II-malocclusion individuals were divided into 2 groups: G1 14 male, and 11 female, treated with the Fränkel-2 function regulator appliance for 18 months, with average pre-treatment age (T1) of 11 years (sd=7 months) and average post-treatment age (T2) of 12 years and 7 months (sd=7 months); and G2 a control group with 25 individuals (12 male and 13 female) with average age at T1 of 10 years and 3 months (sd=11 months) and at T2 of 12 years and 1 month (sd=11 months), which was part of a normal occlusion sample. The 100 dental cast models were analyzed at T1 and T2, with a digital caliper, measuring the distance from the incisal edge to the most concave portion of the gingival margin of lower incisors and canines. Data were checked by a Student's t-test and a paired t-test. Considering T2, the group 1 presented a significant increase in the crown length of all lower anterior teeth. On the other hand, in the group 2, this was observed only for the teeth 33, 42 and 43, suggesting that patients treated with RF-2 had more gingival recession than the control group.
Os aparelhos ortopédicos funcionais utilizados para o tratamento da má oclusão de Classe II normalmente atuam guiando o crescimento dos maxilares e modificando as posições dentais. Dentre esses efeitos dento alveolares está a inclinação dos incisivos inferiores para vestibular, o que auxilia na melhora do overjet, mas pode causar recessões gengivais, especialmente se associado a outros fatores etiológicos. O objetivo deste estudo foi avaliar o comprimento da coroa clínica dos dentes anteriores inferiores em indivíduos com má oclusão de Classe II, após o tratamento com o aparelho regulador de função Fränkel-2 (RF-2). Cinquenta indivíduos com Classe II foram divididos em dois grupos: G1 14 meninos e 11 meninas, tratados com o aparelho regulador de função Frankel-2, por 18 meses, com média de idade pré-tratamento (T1) de 11 anos (DP=7 meses) e média de idade pós-tratamento (T2) de 12 anos e 7 meses (DP=7 meses); e G2 um grupo controle com 25 indivíduos (12 meninos e 13 meninas) com média de idade em T1 de 10 anos e 3 meses (DP=11 meses) e em T2 de 12 anos e 1 mês (DP=11 meses), que fazia parte de uma amostra de oclusão normal. Os 100 modelos de gesso foram avaliados em T1 e T2, com um paquímetro digital, medindo a distância da borda incisal à parte mais côncava da margem gengival dos incisivos e caninos inferiores. Os dados foram checados pelo teste t de Student e pelo teste t pareado. Considerando T2, o grupo 1 apresentou um aumento significante no comprimento das coroas de todos os dentes anteriores inferiores. Por outro lado, no grupo 2, isto foi observado somente para os dentes 33, 42 e 43, sugerindo que os pacientes tratados com o RF-2 apresentaram mais recessões gengivais do que o grupo controle.
Subject(s)
Orthodontics , Crown Lengthening , Orthodontic Appliances, Functional , Gingival RecessionABSTRACT
As cirurgias pré-protéticas são realizadas como rotina na terapia periodontal com a finalidade principal de reconstituição do espaço biológico, que, caso seja invadido pode levar a alterações periodontais como recessão, edema e sangramento, condições que comprometem a qualidade dos trabalhos restauradores. A utilização de retalhos é quase imperativa pela necessidade de correções ósseas e a preservação ou aumento do tecido ceratinizado que contribui para a maior estabilidade da margem gengival. O objetivo deste relato foi descrever os aspectos clínicos de dois casos de aumento de coroa clínica para a reconstituição do espaço biológico.
Pre-prosthetic surgeries are made routinely in periodontal therapy with the main purpose of reconstituting the biological width, which, if invaded can lead to periodontal changes as recession, edema and bleeding, compromising the quality of restorative work. The use of flaps is almost imperative need for bone correction and to preserve or increase keratinized tissue which contributes to greater stability of the gingival margin. The aim of this report was to describe the clinical features of two crown lengthening - cases reports for reconstitution of the biological width.