Planejamento em prótese parcial removível e seu panorama dos últimos 20 anos no Brasil – uma revisão da literatura de estudos observacionais

Objective: the objective of this literature review was to catalog and describe observational scientific studies on the planning of removable partial dentures, based on the panorama of rehabilitation in the last 20 years in Brazil. Methodology: As databases Scielo, Pubmed, Google Scholar, VHL; as well as the terms used in this search were: removable partial denture, dental prosthesis planning and dental models. The inclusion criteria in this study were observational studies carried out based on data obtained in Brazil; articles that address the variables under study: planning, quality of the models and dental preparations published between 2000 and 2020. The exclusion criteria for this work were literature reviews, clinical cases, letters to the editor, opinion articles (low scientific evidence); literature with data from other countries; articles not available in full by the databases; articles addressing the planning of unconventional PPRs. The selection of articles was carried out based on abstracts. Results: The selection resulted in 11 researches on the theme, the works showed a high prevalence of the absence of planning (drawing) and dental preparations, niches and guide plans, in addition to plaster models in poor conditions. It being observed that the responsibility in the elaboration of the design of the metallic structure by the dentist has been delegated to the technician in dental prosthesis. Conclusion: Based on the methodology used in this literature review, the findings showed a bleak outlook in Brazil, regarding the planning of the removable partial denture that is neglected by the dentist.

Modificando paradigmas na comunicação da cor entre a clínica e o laboratório: o Sistema eLAB

The eLAB System allows an objective shade communication, however, it depends on a perfect integration between the surgery and the laboratory, for the acquisition of the reference picture, perfectly contemplating all the rigid parameters of the system.

Resistência de união ao cisalhamento entre a resina composta e dentes artificiais de resina acrílica

Acrylic denture teeth may suffer fracture or wear requiring the need for repair. This study aimed to evaluate the shear bond strength between acrylic resin artificial teeth restored with composite resin (with two different surface treatments) and acrylic resin (AR), simulating repair with these materials. Thirty artificial incisors were included by the palatal side in a circular microwave-polymerized AR base and polished on their buccal side with 120 and 320 grit sandpaper in a metallographic polisher and, then, divided into three groups: (I) restoration with self-cured AR; (II) conventional restoration with Z-100 composite resin with application of acid etching and Single Bond-3M adhesive; and (III) restoration with Z-100 composite resin with submersion for 30 seconds in acetone and application of Single Bond-3M adhesive. Shear bond strength tests were performed in a Universal Testing Machine (Instron). The results were submitted to ANOVA and Tukey (p<0.05) tests, in which Group I (33.26MPa ±10.76) and Group III (22.24MPa ±13.13) showed no statistically significant difference, but both were superior to Group II (10.31MPa ±5.62), which showed a lower value of shear bond strength. It can be concluded that composite resin restoration with acetone pretreatment can be a viable alternative for repair.

Técnica de estratificação natural em dente anterior – relato de caso

Dental trauma injuries occur more frequently in upper anterior teeth, especially in enamel and dentin without pulp involvement. This article presents a clinical case report of a patient dissatisfied with the color of the tooth 21 restoration performed after suffering dental trauma. The format was adequate, so a previous molding of the palatal region was performed, and a condensing silicone guide was made. The use of the palatal guide facilitates the execution of the restoration and guides the layering of selected resins. Following the Natural Stratification concept, this case demonstrated a restorative treatment of direct restorations in composite resin, which can be considered an alternative for fractured anterior teeth, presenting clinical agility and excellent esthetic results.

Soluções estéticas com resina composta para dentes anteriores escurecidos – série de casos

The treatment of discolored anterior teeth is a challenge in clinical practice. There is a wide range of treatment options for these cases. The diagnosis of discoloration causes, and the patient’s clinical and radiographic conditions are essential for the accurate treatment selection. This study aims to present two clinical cases of teeth discolored due to different circumstances, in which conservative treatment with external and internal tooth whitening in the case of non-vital teeth did not reach the patients’ esthetic satisfaction.

Reabilitação total com porcelanas em paciente acometido por amelogênese imperfeita

Amelogenesis imperfecta (AI) is a disorder of genetic origin, linked to the amelogenin gene, which presents developmental abnormalities in the quantity and quality of tooth enamel. The main clinical problems are the extensive loss of dental tissue, occlusal problems, impaired aesthetics, tooth sensitivity and gingival inflammation. This study described a clinical case and the approach in the treatment of a patient with AI, with gingival plastic surgery, porcelain crowns on the posterior teeth, porcelain veneers on the anterior teeth and application of botulinum toxin to correct the gingival smile. AI is an anomaly with complex development and early diagnosis is essential for the conduct and success of the case, to improve aesthetics and function, preserving the characteristic tooth wear.

Manutenção do perfil gengival com cicatrizador personalizado em implante imediato – relato de caso

This article aimed to present a clinical case whose cicatrizador was made through the multifunctional component of PEEK. This is a biocompatible polymer that is customizable and has good adhesion to resins. The case described is an immediate implant in the region of 15, installed with a palatal approach and filling the vestibular gap with an alloplastic graft (Nanosynt). The case was followed until the final prosthesis was made, in which the maintenance of the architecture of the peri-implant tissues was checked for health and aesthetics.

Dificuldades na reabilitação protética de paciente pediátrico com Displasia do Ectoderma – relato de caso

Ectoderma dysplasia is a syndrome characterized by malformation in the tissues derived from the embryonic leaflet ectoderm, causing changes in the epidermis and its accessory structures, such as hair, hair, nails, teeth and glands. The dental surgeon, in most cases, is the first to suspect this syndrome due to dental absences, which can vary from simple agenesis or even anodontics. Therefore, the alveolar bone does not develop very well and the ridge has an unfavorable morphology for a good rehabilitation. The present work aims, through a clinical case, to describe the difficulty of prosthetic rehabilitation in a patient with Ectoderma Dysplasia in preschool age (3 years), due to the absence of teeth. The treatment defined for this patient was the protocol proposed in the most current bibliographic references, which consists of rehabilitation as early as possible, through the manufacture of upper and lower removable prostheses, in order to enable better nutrition, phonetics, facial expressions and social interaction. After the finalized treatment, we conclude that the early prosthetic rehabilitation, although recommended in the literature, must first be evaluated individually, as it depends on the minimal cooperation of the patient and total family commitment for the success of the treatment.

Reabilitação oral com coroa cerâmica fresada em CAD/CAM em dente com ampla destruição coronária – relato de caso

The unitary ceramic crowns are fixed partial dentures cemented on the tooth to be rehabilitated and can be produced from CAD/CAM systems, a device that allows scanning the surface of interest, planning, and making the prosthetic part. The objective of this article is to report dental rehabilitation with the use of ceramic crown manufactured with the CAD/CAM system with the purpose of returning function, aesthetics, and well-being to the patient. Rehabilitation of tooth 26, already endodontically treated, was performed in two consultations, one for the temporary crown and the other for the definitive crown. The preparation for the total crown was done after filling the cavity with composite resin and then it was scanned with a scanner from the CEREC system (Dentsply Sirona). A temporary crown was designed in Cerec SW 4.6 software and then milled from a PMMA Vipiblock (VIPI) resin block. The model of the temporary piece was used to guide the preparation of the definitive crown milled from a leucite-reinforced ceramic block (Empress CAD Multi - Ivoclar) in color B1. After obtaining the crown, it was aesthetic finished to obtain greater naturalness. CAD/CAM system offers advantages in reducing the treatment time, in addition to manufacturing pieces that correctly adapt to the preparation margins and that have occlusal and proximal contact points at the appropriate intensity. It is important that work on methods and materials within dentistry are carried out constantly, keeping professionals updated.