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1.
BMC Oral Health ; 24(1): 823, 2024 Jul 20.
Artigo em Inglês | MEDLINE | ID: mdl-39033134

RESUMO

BACKGROUND: The effects of traction forces at different angles on impacted central incisors(ICI)with varying inverted angles (IA) may be different. The objective of this study was to analyze the biomechanical effects of different force directions (FD) on developmentally inverted ICI with multi-angle variations and to offer insights and guidance for the treatment of inverted ICI. METHODS: Three-dimensional finite element method was employed to simulate clinical scenarios of inverted ICI traction. As such, 0.2 N of force (direction: antero-superior angles of 90°, 100°, 110°, 120°, and 130° relative to the long axis of the inverted ICI crown) was applied to the inverted ICI with inverse angles (IA) of 40°, 30°, 20°, 10° and 0°. Inverted ICI apical displacement and Von Mises stress on periodontal ligament (PDL) and alveolar bone were compared. RESULTS: IA and FD showed minimal influence on the stress distribution in the PDL, as higher stresses were concentrated in the apical region. The higher stresses in the alveolar bone are focused on the cervical and apical regions of the tooth. In particular, IA exerts a more significant impact on stress distribution in the alveolar bone than FD. The influence of IA on the apical displacement of inverted ICI is larger than that of FD. CONCLUSIONS: To promote the health of the root and periodontal tissues, it is recommended to use an angle of 100°-110° relative to the long axis of the ICI crown when dealing with a large IA (> 20°) developmentally inverted ICI. Conversely, an angle of 110°-120° can be used.


Assuntos
Análise de Elementos Finitos , Incisivo , Ligamento Periodontal , Dente Impactado , Humanos , Fenômenos Biomecânicos , Dente Impactado/terapia , Processo Alveolar , Estresse Mecânico , Coroa do Dente , Análise do Estresse Dentário , Imageamento Tridimensional/métodos , Raiz Dentária , Ápice Dentário , Extrusão Ortodôntica/métodos , Tração
2.
J Dent ; 147: 105110, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38906453

RESUMO

OBJECTIVE: This randomized clinical trial aimed to assess the feasibility of computer-assisted open exposure of palatally impacted canines. MATERIALS AND METHODS: Patients aged 11-30 years who required orthodontic eruption for the full palatal impaction of their canines were included in this study. Exclusion criteria were psychosocial and dental contraindications of orthodontic treatment, congenital craniofacial disorders, and trauma in the patient's history in the vicinity of the surgical site. Virtual planning software was used to register the intraoral scans and cone-beam computed tomography data and to design a surgical template. In the test group, exposure of the canines was guided by a surgical template, whereas in the control group, the surgeon relied on the surgical plan to localize the impacted canine. The success of the intervention, duration of surgery, and complications, including excessive hemorrhage, damage to the canine or neighboring anatomical landmarks, and postoperative inflammation of the surgical site were assessed. Postoperative pain was reported by the patients using the visual analog pain scale (VAS). RESULTS: Surgery was deemed successful in all patients in both groups. During healing, no complications were observed. The duration of surgery decreased significantly in the test group (4 min 45.1 s ± 1 min 8.4 s) compared to that in the control group (7 min 22.3 s ± 56.02 s). No statistically significant differences were observed between the VAS scores of the two study groups. CONCLUSIONS: The application of virtual planning and static navigation is a viable approach for the open exposure of palatally impacted canines. CLINICAL TRIAL REGISTRATION NUMBER: NCT05909254. CLINICAL SIGNIFICANCE: Computer-assisted surgery is a feasible method for open exposure of palatally impacted canines, which decreases the duration of surgery compared to the freehand method.


Assuntos
Tomografia Computadorizada de Feixe Cônico , Dente Canino , Extrusão Ortodôntica , Cirurgia Assistida por Computador , Dente Impactado , Humanos , Dente Impactado/cirurgia , Dente Impactado/diagnóstico por imagem , Dente Canino/diagnóstico por imagem , Adolescente , Criança , Masculino , Feminino , Extrusão Ortodôntica/métodos , Adulto Jovem , Adulto , Cirurgia Assistida por Computador/métodos , Dor Pós-Operatória , Estudos de Viabilidade , Resultado do Tratamento , Medição da Dor , Palato/cirurgia , Palato/diagnóstico por imagem , Duração da Cirurgia
4.
J Endod ; 50(6): 852-858, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38428807

RESUMO

This report outlines 2 digitally planned cases in which the teeth underwent magnetic extrusion to preserve the supracrestal tissue attachment and regain the ferrule, followed by their restoration. Case 1: A 42-year-old man with the chief concern of a fractured right maxillary second premolar. Following the completion of root canal treatment, the remaining tooth structure was insufficient to create a ferrule for tooth restoration. For this scenario, a rapid magnetic extrusion technique was performed on tooth #4 to obtain an approximate 3-mm ferrule. The condition of both the dentition and the restorative margin was acceptable 18 months following treatment. Case 2: A 62-year-old man with the chief complaint of mobility on both sides of the maxillary arch in relation to a tooth-supported fixed partial denture (FPD). Following removal of the FPD, multiple extractions were carried out and tooth #6 was subjected to magnetic extrusion in 3 stages to a maximum of 4 mm to obtain a ferrule. At the 18-month and 3-year follow-up appointments, the tooth had no symptoms and the gingiva around the restorations had optimal architecture and margins. The 3-dimensional digital planning was helpful in precisely positioning the magnets within the tooth and the provisional restorations to facilitate axial extrusion. The extruded teeth were restored with zirconia crowns in both cases. The beneficial outcomes observed from these cases provides evidence that the integration of digital planning and magnetic extrusion holds promise as a method for reconstructing teeth with crowns that are significantly compromised.


Assuntos
Extrusão Ortodôntica , Humanos , Masculino , Pessoa de Meia-Idade , Adulto , Extrusão Ortodôntica/métodos , Dente Pré-Molar/diagnóstico por imagem , Restauração Dentária Permanente/métodos , Magnetismo , Fraturas dos Dentes/diagnóstico por imagem , Fraturas dos Dentes/terapia , Tratamento do Canal Radicular/métodos , Desenho Assistido por Computador , Prótese Parcial Fixa
5.
J Esthet Restor Dent ; 36(6): 838-844, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38217301

RESUMO

OBJECTIVE: The aim of the present paper is to describe a systematic and detailed protocol for rapid orthodontic extrusion, and to summarize the main results of this protocol in terms of migration of dental, hard and soft tissues, for 10 cases. CLINICAL CONSIDERATIONS: The working design was to apply a protocol lasting 4 weeks of active phase with intense forces (greater than 300 g), perform weekly the circumferential supra-crestal fiberotomy procedure associated with root-planning, follow up with a passive stabilization phase of another 4 weeks and evaluate the results. CONCLUSIONS: We believe that despite the partial migration of periodontal tissue, the defined protocol we used is, for simplicity of application, brevity of treatment and results, a viable alternative to the surgical technique of clinical crown lengthening in those cases where it is necessary to have more dental tissue exposed for restorative and prosthetic purposes.


Assuntos
Extrusão Ortodôntica , Humanos , Extrusão Ortodôntica/métodos , Protocolos Clínicos , Adolescente , Feminino , Migração de Dente/terapia
7.
J Esthet Restor Dent ; 36(1): 124-134, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37830507

RESUMO

INTRODUCTION: Regeneration of the missing papilla adjacent to single implants in the esthetic zone has always been challenging, despite advances in vertical hard and soft tissue regeneration. Orthodontic tooth extrusion has been shown to effectively gain alveolar bone and gingival tissue. This retrospective study evaluated the effectiveness of orthodontic tooth extrusion on regenerating missing papilla between existing maxillary anterior single implant and its adjacent tooth. METHODS: Patients who underwent orthodontic tooth extrusion to regenerate missing papilla adjacent to a single implant in the esthetic zone were included in this study. The gingival phenotype, orthodontic extrusion movement, proximal bone level, dento-implant papilla level, facial gingival level, mucogingival junction level, and keratinized tissue width, of the extruded tooth were recorded at pre-orthodontic extrusion (T0 ), post-orthodontic extrusion and retention (T1 ), and latest follow-up (T2 ). RESULTS: A total of 17 maxillary single tooth had orthodontic tooth extrusion to regenerate missing papilla adjacent to 14 maxillary anterior single implants in 14 patients. After a mean follow-up time of 48.4 months, implant success rate was 100% (14/14), with none of the orthodontically extruded teeth being extracted. After a mean extrusion and retention period of 14.3 months, a mean orthodontic extrusion movement of 4.62 ± 0.78 mm was noted with a mean proximal bone level gain of 3.54 ± 0.61 mm (77.0% efficacy), dento-implant papilla level gain of 3.98 ± 0.81 mm (86.8% efficacy), and facial gingival tissue gain of 4.27 mm ± 0.55 mm (93.4% efficacy). A mean keratinized tissue width gain of 4.17 ± 0.49 mm with minimal mean mucogingival junction level change of 0.10 ± 0.30 mm were observed. The efficacy of orthodontic eruption movement on dento-implant papilla gain was less in the thin (80.5%) phenotype group when compared with that in the thick (91.5%) phenotype group. CONCLUSIONS: Within the confines of this study, orthodontic extrusion is an effective, noninvasive method in regenerating mid-term stable proximal bone and papilla adjacent to maxillary anterior single implants. CLINICAL SIGNIFICANCE: This retrospective study presents a mid-term result on orthodontic extrusion as a mean to regenerate dento-implant papilla defect. The extended retention period following orthodontic extrusion showed stable and efficacious proximal bone and papilla gain.


Assuntos
Implantes Dentários para Um Único Dente , Extrusão Ortodôntica , Humanos , Extrusão Ortodôntica/métodos , Estudos Retrospectivos , Incisivo , Gengiva , Maxila/cirurgia , Resultado do Tratamento , Estética Dentária , Implantação Dentária Endóssea
9.
Clin Oral Investig ; 27(9): 5587-5594, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37498335

RESUMO

OBJECTIVES: Clinical data on retaining extensively damaged teeth using forced orthodontic extrusion followed by restorative rehabilitation are scarce, and economic evaluations are basically absent. A health economic evaluation of this method was performed based on a clinical study. MATERIALS AND METHODS: In a convenience sample of individuals recruited from routine care, extensively damaged teeth were orthodontically extruded prior to restoration. Patients were followed up for up to 6 years. The health outcome was tooth retention time. Direct medical, non-medical, and indirect initial and follow-up costs were estimated using the private payer's perspective in German healthcare. Association of initial direct medical treatment costs and cofounding variables was analyzed using generalized linear models. Success and survival were secondary outcomes. RESULTS: A total of 35 teeth in 30 patients were followed over a mean ± SD of 49 ± 19 months. Five patients (14%) dropped out during that period. Median initial costs were 1941€ (range: 1284-4392€), median costs for follow-up appointments were 215€ (range: 0-5812€), and median total costs were 2284€ (range: 1453 to 7109€). Endodontic re-treatment and placement of a post had a significant impact on total costs. Three teeth had to be extracted and in three patients orthodontic relapse was observed. The survival and success rates were 91% and 83%, respectively. CONCLUSIONS: Within the limitations of this clinical study, total treatment costs for orthodontic extrusion and subsequent restoration of extensively damaged teeth were considerable. Costs were by large generated initially; endodontic and post-endodontic therapies were main drivers. Costs for retreatments due to complications were limited, as only few complications arose. CLINICAL RELEVANCE: The restoration of extensively damaged teeth after forced orthodontic extrusion comes with considerable initial treatment costs, but low follow-up costs. Overall and over the observational period and within German healthcare, costs are below those for tooth replacement using implant-supported crowns. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: DRK S00026697).


Assuntos
Coroas , Extrusão Ortodôntica , Humanos , Análise Custo-Benefício , Atenção à Saúde , Extrusão Ortodôntica/métodos , Reimplante Dentário
10.
J Prosthet Dent ; 129(1): 61-68, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36535882

RESUMO

STATEMENT OF PROBLEM: Clinical data on orthodontic extrusion to restore teeth deemed unrestorable because of their defect size are scarce. It remains unclear for which defects forced orthodontic extrusion and tooth retention is preferred to extraction. PURPOSE: The purpose of this pilot clinical study was to investigate the survival, frequency, and type of complications of extensively damaged teeth requiring single-crown restorations after forced orthodontic extrusion. MATERIAL AND METHODS: Participants were recruited from consecutive patients in need of restorative treatment of extensively damaged teeth at a university clinic. The teeth were orthodontically extruded to reestablish the biologic width and to ensure a 2-mm ferrule preparation before restoration. The primary endpoint was restoration success and survival. At recall, survival was defined as the tooth being in situ and success as a symptom-free tooth with an intact, caries-free restoration and with physiological pocket probing depths, no signs of intrusion, ankylosis, root resorption, or periapical radiolucency. Recalls were performed every 6 months; the outcome was assessed by radiographic and clinical evaluation after up to 5 years of clinical service. Quantitative parameters were described with mean values and standard deviations. RESULTS: Thirty-four participants were assessed for eligibility and enrolled (mean ±standard deviation age: 53.4 ±18.9 years). Four participants were premature dropouts. Data were analyzed for 35 teeth in 30 participants. The amount of extrusion varied between 2 and 6 mm (mean ±standard deviation 3.4 ±0.9 mm). The mean duration of extrusion was 18.9 ±12.6 days and the mean duration of retention was 126.94 ±88.1 days. The mean ±standard deviation crown-to-root ratio after treatment was 0.8 ±0.1 (range: 0.5 to 1.0). Three participants exhibited orthodontic relapse before restoration. Teeth were successfully restored after repeated extrusion. After a mean observation period of 3.3 years (range: 1 to 5.2 years), 29 of 31 teeth were still in situ. Two teeth were fractured, and 4 participants were not available for recall. Thus, the survival rate was 94%. No resorption or periapical translucencies were observed radiographically. Clinical examinations revealed physiological probing depths and absence of ankyloses. One tooth presented with marginal bone loss. The most frequent type of complication was orthodontic relapse at recall (n=3). A total of 84% of teeth were considered a success. CONCLUSIONS: Forced orthodontic extrusion allowed for the restoration of anterior and premolar teeth deemed as nonrestorable because of their defect size. Tooth retention of extensively damaged teeth and their use as abutments for single-crown restorations can be recommended.


Assuntos
Extrusão Ortodôntica , Coroa do Dente , Humanos , Adulto , Pessoa de Meia-Idade , Idoso , Extrusão Ortodôntica/métodos , Dente Pré-Molar , Coroas , Recidiva
11.
Am J Orthod Dentofacial Orthop ; 163(1): 126-136, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36192324

RESUMO

Horizontal maxillary incisor impaction is not common, but it affects facial esthetics, phonetics, and the patient's self-esteem. Therefore, it is necessary to manage this problem as early as possible. This case report presents a patient with an unerupted maxillary left central incisor combined with anterior and left posterior crossbite, edge-to-edge overbite on the right and left anterior open bite, low smile line, and mild skeletal Class III discrepancy. The treatment consisted of 3 stages: (1) maxillary expansion and sufficient space creation for the impacted tooth; (2) surgical exposure by closed-eruption technique; and (3) induced eruption of impaction. The treatment outcome was highly favorable. Maxillary impaction erupted in the proper position with a normal clinical crown height and consonant gingival line with the adjacent teeth. Maxillary and mandibular teeth had normal and stable occlusion. The 3-year follow-up demonstrated an esthetically functional outcome after orthodontically induced tooth eruption. This treatment required a good treatment plan by the orthodontist to obtain satisfactory results.


Assuntos
Má Oclusão Classe II de Angle , Má Oclusão , Mordida Aberta , Dente Impactado , Humanos , Adolescente , Dente Impactado/terapia , Dente Impactado/cirurgia , Incisivo/diagnóstico por imagem , Incisivo/cirurgia , Extrusão Ortodôntica/métodos , Má Oclusão/terapia , Má Oclusão Classe II de Angle/terapia , Mordida Aberta/terapia , Maxila
12.
Cient. dent. (Ed. impr.) ; 19(3): 191-196, sept.- nov. 2022. ilus
Artigo em Espanhol | IBECS | ID: ibc-214047

RESUMO

La extrusión quirúrgica es una alternativa terapéutica que persigue el desplazamiento coronal de aquellos dientes con márgenes subgingivales y limitada estructura remanente. El correcto diag nóstico de cada caso y la aplicación de una técnica mínimamente traumática serán clave en el éxito del tratamiento. En la presente revisión, a propósito de un caso con 12 meses de seguimiento, se analizan los factores críticos del procedi miento (AU)


Surgical extrusion is a therapeutic alternative that pursues the coronal displacement of those teeth with subgingival margins and limited remaining structure. The correct diagnosis of each case and the application of a minimally traumatic technique will be key to the success of the treatment. In this review, about a case with 12 months of follow-up, the critical factors of the procedure are analyzed (AU)


Assuntos
Humanos , Masculino , Adulto Jovem , Extrusão Ortodôntica/métodos , Aumento da Coroa Clínica , Resultado do Tratamento , Seguimentos , Prognóstico
13.
Artigo em Inglês | MEDLINE | ID: mdl-36612451

RESUMO

INTRODUCTION: Temporary anchorage devices (TADs) represent an essential instrument under difficult anchorage conditions, especially when the procedure is approached with an aligner technique. The objective of this paper is to describe a possible sequence of orthodontic treatment of impacted canines with aligners supported by orthodontic mini-screws. MATERIALS AND METHODS: The resolution of impacted canines requires a specific clinical sequence constituted by different steps: the space creation, the surgical exposure, and the orthodontic traction (on the horizontal, vertical, and buccal direction). Following this sequence, two different clinical scenarios can be identified following the space available and the initial malocclusion. The first scenario is constituted by recreating the space for the impacted canine along with the correction of the malocclusion by means of an aligner system and then approaching the de-impaction with TADs. The second clinical scenario is related to the canine-first approach, an immediate de-impaction stage based solely on the use of TADs and sectional wires, and then a finishing phase with aligners. RESULTS: Both approaches to the treatment of impacted canines can be considered reliable, but of course selecting one or the other depends on the space available in the upper arch and on the initial malocclusion. CONCLUSIONS: The use of aligners in the treatment of impacted canines in combination with TADs and sectional wires represents a viable alternative option to the conventional systems for canine disinclusion. When the treatment is managed with the presented approaches, no further cooperation with the patient is required in order to support the forced eruption, and an ideal biomechanical approach can be easily applied with one or two mini-screws.


Assuntos
Má Oclusão , Extrusão Ortodôntica , Humanos , Extrusão Ortodôntica/métodos , Má Oclusão/terapia , Dente Canino/cirurgia
14.
Rev. Fac. Odontol. (B.Aires) ; 36(83): 21-26, 2021. ilus
Artigo em Espanhol | LILACS | ID: biblio-1342862

RESUMO

La pérdida de estructura dentaria por debajo del margen gingival y de la cresta ósea alveolar, ya sea por caries, fracturas traumáticas, desgaste, reabsorción radicular o perforaciones iatrogénicas, dificulta el tratamiento protésico y requiere un abordaje multidisciplinario para conseguir resultados óptimos y estables a largo plazo. Se presenta el caso de una paciente adulta que acude a consulta con la pieza 2.3, que no permite una adecuada restauración protésica sin invadir el espacio biológico. Dentro del abanico de posibilidades terapéuticas se selecciona la extrusión dentaria unitaria guiada, para poder exponer un remanente dentario adecuado supragingival, y conseguir un adecuado efecto ferrule para la posterior rehabilitación protésica. La técnica presentada es eficaz, simple, cómoda, higiénica y útil en pacientes que no desean realizarse tratamiento de ortodoncia en ambas arcadas (AU)


Assuntos
Humanos , Feminino , Adulto , Implantes Dentários , Braquetes Ortodônticos , Extrusão Ortodôntica/métodos , Fios Ortodônticos , Planejamento de Assistência ao Paciente , Argentina , Faculdades de Odontologia , Técnica para Retentor Intrarradicular , Coroas , Cárie Dentária/terapia
15.
Endodoncia (Madr.) ; 38(2): 14-19, oct. 2020. ilus
Artigo em Espanhol | IBECS | ID: ibc-198455

RESUMO

INTRODUCCIÓN: Un ferrule de 2 mm a 3600 asegura la supervivencia a largo plazo del diente restaurado. Sin embargo, existen situaciones clínicas donde el ferrule es insuficiente. Existen básicamente 3 opciones de tratamiento para la obtención de ferrule sin invadir el espacio biológico: el alargamiento de corona quirúrgico, la extrusión ortodóntica rápida y la extrusión quirúrgica. CASO CLÍNICO: EL presente caso clínico describe la restauración de un premolar inferior sin ferrule por medio de la extrusión quirúrgica, el retratamiento de conductos, y la colocación de poste y corona. CONCLUSIÓN: La extrusión quirúrgica permite, de manera altamente predecible restaurar dientes sin ferrule con raíces largas y periodontalmente sanos, sin comprometer los tejidos periodontales ni necesidad de aparatología ortodóntica


INTRODUCTION: A 2-mm ferrule over 3600 ensures a long-term survival of the restored tooth. However, there are clinical situations in which ferrule is insufficient. Thus, there are 3 treatment options to obtain ferrule without invading the biological width: surgical crown lengthening, rapid orthodontic extrusion and surgical extrusion. CLINICAL CASE: The present clinical case describes the restoration of a lower premolar without ferrule by means of surgical extrusion, root canal re-treatment, and post and crown. CONCLUSION: Surgical extrusion allows predictably the restoration of long, periodontally healthy teeth with no ferrule, without compromising the periodontal tissues or the need for orthodontic appliances


Assuntos
Humanos , Feminino , Pessoa de Meia-Idade , Extrusão Ortodôntica/métodos , Obturação do Canal Radicular/métodos , Aumento da Coroa Clínica/métodos , Técnica para Retentor Intrarradicular , Restauração Dentária Permanente/métodos , Resultado do Tratamento , Porcelana Dentária/uso terapêutico
16.
Am J Orthod Dentofacial Orthop ; 156(2): 275-282, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-31375238

RESUMO

This case report describes the interdisciplinary treatment of an ectopic horizontally placed maxillary right central incisor with severe root dilaceration. The root was distally angulated and entrapped by the root of the maxillary right lateral incisor. The initial force system was aimed at an occlusal displacement and applied to the crown. During the second phase, a button was cemented onto the apex of the impacted tooth. A force from the apex to a temporary anchorage device in the palate moved the root toward the midline. Finally, a root canal and an apectomy were performed and the central incisor could be moved to its ideal position. The treatment generated a normal height of the alveolar bone and an ideal occlusion with a healthy periodontium.


Assuntos
Incisivo/cirurgia , Técnicas de Movimentação Dentária/métodos , Raiz Dentária/cirurgia , Dente Impactado/cirurgia , Dente Impactado/terapia , Fenômenos Biomecânicos , Criança , Tomografia Computadorizada de Feixe Cônico/métodos , Cavidade Pulpar , Feminino , Humanos , Processamento de Imagem Assistida por Computador/métodos , Imageamento Tridimensional , Má Oclusão Classe I de Angle/terapia , Maxila/anatomia & histologia , Maxila/diagnóstico por imagem , Maxila/cirurgia , Aparelhos Ortodônticos Fixos , Extrusão Ortodôntica/métodos , Planejamento de Assistência ao Paciente , Tratamento do Canal Radicular , Coroa do Dente , Dente Impactado/diagnóstico por imagem , Resultado do Tratamento
17.
BMJ Case Rep ; 12(7)2019 Jul 18.
Artigo em Inglês | MEDLINE | ID: mdl-31324671

RESUMO

The major challenge in traumatic injuries is the management of subgingival fracture of anterior teeth. Forced orthodontic extrusion is a suitable approach for these teeth as it provides both a sound tissue margin for final restoration and creates a periodontal environment (biological width) which is easy for the patient to maintain. Restoration after orthodontic eruption may present a more conservative treatment choice in young patients compared with the prosthetic restoration after extraction. This paper reports a case of the fractured maxillary anterior tooth at the subgingival level that was managed by forced orthodontic extrusion after endodontic therapy followed by aesthetic rehabilitation, a much-forgotten technique not utilised routinely yet conservative and cost-effective.


Assuntos
Restauração Dentária Permanente/métodos , Incisivo/lesões , Extrusão Ortodôntica/métodos , Tratamento do Canal Radicular/métodos , Fraturas dos Dentes/terapia , Adolescente , Humanos , Incisivo/cirurgia , Masculino , Maxila , Equipe de Assistência ao Paciente
18.
Int Orthod ; 17(2): 365-374, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-31023587

RESUMO

This case report discussed a combined surgical-orthodontic rescue of two impacted teeth in a large dentigerous cyst by the means of fixed orthodontic appliances. After careful evaluation of the 3D radiographic exams, extraction of the deciduous elements was carried out, followed by marsupialization and orthodontic traction of the impacted teeth. Surgical procedures, pre- and posttreatment records and orthodontic biomechanical evaluations are discussed.


Assuntos
Cisto Dentígero/cirurgia , Extrusão Ortodôntica/métodos , Dente Impactado/cirurgia , Tração/métodos , Adolescente , Dente Pré-Molar , Parafusos Ósseos , Tomografia Computadorizada de Feixe Cônico/métodos , Dente Canino , Cisto Dentígero/diagnóstico por imagem , Feminino , Humanos , Imageamento Tridimensional , Maxila/diagnóstico por imagem , Maxila/cirurgia , Aparelhos Ortodônticos Fixos , Radiografia Panorâmica , Dente Decíduo , Dente Impactado/diagnóstico por imagem
19.
Am J Orthod Dentofacial Orthop ; 155(3): 421-431, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30826045

RESUMO

Short root anomaly (SRA) is a rare familial dental condition that is often misdiagnosed. Orthodontic treatment of patients with SRA is challenging because it is difficult to diagnose, it may be accompanied by other dental anomalies, and it has been reported to contribute to additional susceptibility to root resorption during orthodontic treatment. In this article, we describe a methodical and evidence-based means of diagnosing and orthodontically managing a patient with SRA. The patient had additional challenges, including impacted and ectopic teeth. An individualized treatment plan that incorporated efficient and effective mechanics led to a well seated occlusion and an esthetic smile.


Assuntos
Extrusão Ortodôntica/métodos , Ortodontia Corretiva/métodos , Erupção Ectópica de Dente/diagnóstico por imagem , Erupção Ectópica de Dente/terapia , Raiz Dentária/anormalidades , Raiz Dentária/diagnóstico por imagem , Dente Impactado/terapia , Adolescente , Cefalometria , Tomografia Computadorizada de Feixe Cônico , Estética Dentária , Feminino , Humanos , Radiografia Panorâmica , Sorriso , Dente Impactado/diagnóstico por imagem
20.
Int Orthod ; 17(1): 96-102, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-30772354

RESUMO

OBJECTIVE: To assess the retention efficiency of three types of temporary zinc oxide cement trademarks on forced eruption using intracranal wire device. METHODS: An in vitro evaluation included intracanal wire device displacement and detachment at 50g load force for 120 days and then the retention resistance at maximum load force. RESULTS: All groups of temporary zinc oxide cements were efficient to support 50g load forces after 120 days. None statistical differences were found between groups. Zinc oxide cements supported a maximum retention load force, which exceeded in more than 84 times the lowest value obtained in controls (420g). CONCLUSION: Zinc oxide cements are efficient to retain intracanal wire devices on forced eruption processes in vitro and allows removal of both when necessary (wire device and cement, respectively).


Assuntos
Cimentos Dentários/química , Extrusão Ortodôntica/métodos , Cimentos de Resina/química , Óxido de Zinco/química , Resinas Acrílicas , Dente Pré-Molar , Colagem Dentária , Materiais Dentários , Cimentos de Ionômeros de Vidro , Humanos , Mandíbula , Teste de Materiais , Fios Ortodônticos , Preparo de Canal Radicular , Resistência à Tração
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