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BACKGROUND/AIM: Crown fractures are common traumatic dental injuries and tooth fragment reattachment is a viable option for restoring a fractured tooth. The aim of this study was to assess the knowledge and experience of dentists in the Federal District regarding the tooth fragment reattachment technique for enamel and dentin fractures. MATERIALS AND METHODS: For the cross-sectional observational study, an electronic form was designed with objective and self-report questions for dentists. The data were analyzed using descriptive statistics, with their absolute and relative frequencies. For the analysis of categorical variables, the nonparametric chi-squared or Fisher exact association tests were used in the statistical software R (version 4.2.1). RESULTS: A total of 416 dentists participated in the study (58.9% female and 41.1% male). Of these, 70% declared they knew about fragment reattachment, but only 42.3% reported previous experience with this procedure. The most common storage medium used for the fractured fragment was milk (78.1%), and the bonding material used for reattachment was light-cured composite resin (86.3%). A majority (66.3%) reported that for a patient with enamel and dentin fracture, with the crown fragment in good condition, they would choose to do the reattachment. CONCLUSION: Dentists demonstrated that they had adequate knowledge about the tooth fragment technique, although many did not have previous experience with this procedure.
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BACKGROUND/AIMS: The recommended treatment for uncomplicated crown fractures is bonding the fractured fragment or the fragment reattachment. A paucity was identified regarding the studies comparing the efficacy of micro-hybrid and nanohybrid composites in fragment reattachment. Hence, the present study aimed to evaluate and compare three materials for bonding of fragments rehydrated by humidification in teeth with uncomplicated crown fractures. MATERIAL AND METHODS: Eighty mandibular bovine incisors with similar dimensions and free of any structural deformities were fractured similar to the technique followed in previous studies. Fracture was simulated, fragments, and stumps were coded, stumps were stored in artificial saliva and the fragments were dehydrated at room temperature and pressure. They were randomly assigned to Group-1 (no rehydration), Group-2 (rehydrated and bonded by flowable nanohybrid composite-3M Filtek Supreme Syringe Flowable Composite Resin-A2, Sao Paulo, Brazil), Group-3 (rehydrated and bonded by flowable micro-hybrid composite- Ruby Flow, InciDental, England, United Kingdom), and Group-4 (rehydrated and bonded by light-cured Glass-Ionomer-Cement-Voco Ionoseal, Cuxhaven, Germany). The samples were subjected to a universal testing machine to evaluate the force required to fracture the bonded fragments. RESULTS: The highest median value of the force required to fracture was recorded for Group 2 (208.4 N) followed by Group 3 (195.2). The force required to fracture the bonded fragments was lowest in Group 4 (67.2 N) which was lower than the negative control (131.4 N). The differences between the observations in Groups 2 and 3 were not found to be statistically significant. CONCLUSION: The nano and micro-hybrid composites showed greater force required to fracture than fragments bonded by LC-GIC. Dehydrated fragments bonded using nanocomposites performed better than rehydrated fragments bonded by using LC-GIC.
Assuntos
Colagem Dentária , Fraturas dos Dentes , Bovinos , Animais , Humanos , Coroa do Dente , Restauração Dentária Permanente/métodos , Colagem Dentária/métodos , Brasil , Resinas Compostas/química , Fraturas dos Dentes/terapia , Coroas , Análise do Estresse Dentário , Teste de MateriaisRESUMO
BACKGROUND/AIM: The fracture resistance of teeth subjected to fragment reattachment may improve when the technique is performed using intermediate materials. The aim of this study was to evaluate the influence of different bonding materials, including pre-heated composite resin, on the fracture resistance of teeth subjected to the reattachment technique compared with a direct composite resin restoration. MATERIALS AND METHODS: After simulating a tooth fracture, each specimen was reattached by using one of the following intermediate materials (n = 15): G0, negative control (sound teeth); G1, Z100; G2, pre-heated Z100; G3, Filtek Z350 XT; G4, pre-heated Filtek Z350 XT; G5, Filtek Z350 XT Flow; and G6, RelyX Veneer. In G7, direct class IV restorations were performed using Filtek Z350 XT composite resin. The fracture resistance was evaluated using a universal testing machine under a compressive load of 1 mm/min. One-way analysis of variance (ANOVA) and the post hoc Tukey test (5%) were conducted. RESULTS: G0 showed the highest fracture resistance, and this was statistically different from the other experimental groups (p < .05) except for G2 and G4, in which the fragments were bonded using pre-heated resins. A statistically significant difference was found between groups G1 and G6 (one-way ANOVA, p = .04). For G1 and G2, a significant difference was found between bonding with and without pre-heating (p < .05). This difference was not observed in G3 and G4 (p > .05). No statistically significant difference was found between the reattached and directly restored groups (t-test, p = .53). CONCLUSIONS: The tooth reattachment technique using pre-heated composite resin showed fracture resistance values similar to those of the sound tooth group. No difference was found between the fragment reattachment and direct composite resin techniques.
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Restauração Dentária Permanente , Fraturas dos Dentes , Humanos , Restauração Dentária Permanente/métodos , Resinas Compostas , Materiais Dentários , Análise do Estresse Dentário , Teste de MateriaisRESUMO
BACKGROUND/AIMS: Following coronal tooth fracture, keeping the fragment hydrated is of the utmost importance in the tooth fragment bonding technique. The aim of this study was to evaluate the effects of different immersion times in different storage media on multimode adhesive bonding between reattached fragments and teeth. MATERIALS AND METHODS: A total of 195 bovine incisors were fractured and randomized into the following storage groups (n = 15): G0-control group (sound tooth); GA-saline solution: for 1 hour (A1) or 24 hours (A2); GB-artificial saliva: for 1 hour (B1) or 24 hours (B2); GC-coconut water: for 1 hour (C1) or 24 hours (C2); GD-tap water: for 1 hour (D1) or 24 hours (D2); GE-milk: for 1 hour (E1) or 24 hours (E2); GF-dry (dehydration): for 1 hour (F1) or 24 hours (F2). Tooth fragments were then reattached using a multimode adhesive in a self-mode technique with a flowable resin composite. Fracture resistance was evaluated in a universal testing machine under a compressive load (1 mm/min). The data were submitted to two-way analysis of variance and the post hoc Tukey test (5%). RESULTS: The group submitted to the dehydration factor (GF) exhibited a mean value of 599.1 ± 144.2 N, while those submitted to all hydration protocols (GA, GB, GC, GD, GE) exhibited a mean value of 751.8 ± 285.4 N. Dehydration significantly affected the fracture strength values (P = .005). No significant interaction between the rewetting solutions was observed (P > .05). CONCLUSIONS: Hydration of the tooth fragment increased fracture resistance, regardless of the storage solution and/or immersion time.
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Colagem Dentária , Cimentos Dentários , Restauração Dentária Permanente , Fraturas dos Dentes , Animais , Bovinos , Resinas Compostas , Análise do Estresse Dentário , Cimentos de Resina , Coroa do DenteRESUMO
Coronal fractures of the anterior teeth are common sequelae of traumatic dental injuries. Reattachment of fractured tooth fragments using dental adhesive techniques offers some advantages, including restoration of the function, esthetics, shape, texture, and brightness of the surface. The present report describes a clinical case of reattachment with a 4-year clinical and radiographic follow up in a permanent maxillary central incisor with an uncomplicated crown fracture. Fragment reattachment is a conservative procedure, preserving esthetics and functionality, and it can provide an immediate positive emotional response from the patient.
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Restauração Dentária Permanente/métodos , Incisivo/lesões , Coroa do Dente/lesões , Fraturas dos Dentes/terapia , Acidentes por Quedas , Criança , Feminino , Humanos , Maxila/lesõesRESUMO
ABSTRACT: Dento-alveolar traumas are one of the most frequent injuries to teeth, mainly affecting the upper incisors due to their exposed position in the dental arch. In such cases, esthetics, function and phonetics of anterior teeth may be compromised. Furthermore, when there is involvement of the biological width, there is often a poor prognosis. This case report describes the multidisciplinary approach to tooth fragment re-attachment in a fracture with biological width violation. The patient presented with an oblique crown fracture in the maxillary right lateral incisor, extending from the buccal to palatal side, as well as a biological width invasion. The re-establishment of the biological width was obtained by periodontal surgery to achieve clinical-crown lengthening and tooth fragment re-attachment with a glass fiber post to increase retention. After 3 years of follow-up, the rehabilitated lateral incisor remains in good condition, with satisfactory esthetic and periodontal health.
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Humanos , Masculino , Adulto Jovem , Fraturas dos Dentes/terapia , Colagem Dentária/métodos , Coroa do Dente/lesões , Incisivo/lesões , Reimplante Dentário , Resultado do TratamentoRESUMO
BACKGROUND/AIMS: The tooth fragment bonding technique, frequently used to restore traumatized teeth, may be affected by dehydration/rehydration periods. The aim of this study was to evaluate the effects of different dry and wet storage intervals on multimode adhesive bonding between reattached fragments and teeth. MATERIALS AND METHODS: Eighty-four bovine incisors were fractured and randomized into groups (n=12). After teeth fracturing, each specimen was assigned to one of the following groups: G0: control group (sound tooth); GA1 and GA2: 1-h dehydration and a 15-min or 24-hours rewetting period, respectively; GB1 and GB2: 24-hours dehydration and a 15-minutes or 24-hours rewetting period, respectively; and GC: 1-hour (GC1) or 24-hours (GC2) dehydration period only. Tooth fragments were then reattached using a multimode adhesive in a self-mode technique with a flowable resin composite. The fracture resistance was evaluated in a universal testing machine under a compressive load (1 mm/min-1 ). Data were submitted to two-way analysis of variance and post hoc Tukey test (5%). RESULTS: No significant interaction between dehydration and rehydration intervals was observed (P>.05). Only the step of rehydration significantly affected the reattachment strength when compared to the groups submitted only to dehydration, regardless of the interval (15 minutes or 24 hours). CONCLUSION: Rehydrating a tooth fragment for 15 minutes before bonding with a multimode adhesive maintained sufficient moisture to increase reattachment strength.
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Desidratação , Cimentos Dentários/farmacologia , Hidratação , Incisivo/lesões , Fraturas dos Dentes/terapia , Animais , Bovinos , Resinas Compostas/farmacologia , Colagem Dentária/métodos , Análise do Estresse Dentário , Técnicas In Vitro , Distribuição AleatóriaRESUMO
El manejo de las fracturas corono radiculares es un desafío clínico interdisciplinario, tanto en su atención de urgencia como en la planificación y ejecución del tratamiento definitivo. Se describen tres alternativas principales como terapia: tracción quirúrgica u ortodóncica del remanente corono radicular, gingivectomía y reimplante intencional dependiendo algunos factores como: edad del paciente, condición ligamento periodontal, longitud radicular, extensión del rasgo e fractura, entre otros. Paciente de sexo masculino de 10 años, con trauma dentoalveolar complejo, donde destaca la fractura corono radicular, diente 11, que presenta extensión subgingival mayor a 5 mm. Dada la complejidad de la situación clínica, se optó por el reimplante intencional, para permitir la reposición del fragmento con técnica adhesiva extra-oral. Luego de los primeros dieciséis meses de seguimiento se observa una adecuada cicatrización periodontal y un resultado estético aceptable. El reimplante intencional puede ser considerado un adecuado tratamiento en casos de fracturas corono radiculares complejas, cuando el rasgo de fractura se encuentra ubicado en zonas que impiden la utilización de otras técnicas, para su rehabilitación. De igual manera se permite la mantención de la altura y volumen del hueso alveolar de pacientes en crecimiento.
Crown root fracture management is a clinical and interdisciplinary challenge, either in its initial emergency care as in the definitive treatment planning and execution. Three main treatment alternatives are described: surgical and orthodontic extrusion of crown-root remnant, gingivectomy and intentional reimplantation, depending on factors such as: age of patient, clinical conditions of periodontal ligament and root length. This paper reports a clinical case of an adhesive fragment reattachment in a complicated crown root fracture in upper maxillary central incisor through intentional replantation. A 10 year-old male patient with complex dentoalveolar trauma, which highlights a complicated crown root fracture on tooth 11 with subgingival extension greater than 5 mm. Given the complexity of the clinical situation, we opted for intentional replantation, to allow reattachment of the crown fragment by adhesive technique. After the first sixteen months of follow-up, an adequate periodontal healing, acceptable aesthetic and functional outcome were observed. The intentional replantation can be considered adequate treatment in cases of complex crown root fractures when the fracture feature is located in areas that prevent the use of other techniques for rehabilitation. In the same way it allows the maintenance of the height and volume of the alveolar bone of growing patients.
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OBJECTIVE: To present and discuss a case of child who sustained a complicated crown fracture,with the lost portion of tooth embedded in his lower lip. RESULTS: Tooth fragment was surgicallyremoved and successfully reattached to the tooth using acid etch and dentin bonding resin technique.
OBJETIVO: Apresentar e discutir um caso de criança que sofreu fratura complicada de coroadentária, com parte do dente perdida e alojada no lábio inferior. RESULTADOS: O fragmentodentário foi cirurgicamente removido do lábio e colado, com sucesso, ao dente, utilizando-seataque ácido e cimentação com compósito.