ABSTRACT
The maintenance of natural dentition under optimal function, health and aesthetics conditions is the main objective of dental treatments, but when therapeutic possibilities are exhausted, dental extractions become necessary. Bone remodeling due to post-extraction alveolar healing may result in volume changes in the region. This topic is common in renowned dentistry scientific publications and several researchers recommend tissue regenerative procedures and seek solutions minimize volume reduction. Among these procedures, the immediate installation of implants in post- extraction sockets without flap elevation is an alternative that guarantees functional and aesthetic benefits in the final result of the rehabilitation. This paper presents a clinical case that shows a practical and viable alternative therapy for adequate alveolar healing. In this clinical case, the use of immediate implants and personalized healing abutments with flowable resin composite reduced alveolar healing remodeling and allowed the preservation of the gingival architecture and to obtain an ideal emergency profile for performing the permanent prosthesis supported by implant.
Subject(s)
Humans , Male , Female , Tooth Extraction , Dental Implants , Tooth SocketABSTRACT
A lisura das restaurações provisórias proporciona saúde ao periodonto. O presente trabalho teve por objetivo verificar a rugosidade diante de diferentes métodos de polimento sobre três marcas comerciais de resinas acrílicas. Foram confeccionados 90 corpos de prova (cp) e estes foram divididos em seis grupos experimentais e três grupos controle. Para cada resina testada foi determinado um grupo controle, um grupo com polimento mecânico e outro com polimento químico. De acordo com os resultados obtidos, pôde-se concluir que a resina Clássico (termopolimerizável) permite um melhor polimento quando comparada às resinas bisacrílicas e à resina autoativada, respectivamente, e o polimento mecânico diante do químico mostrou-se mais efetivo nos três tipos de resina.
The provisional restorations are extremely important because they anticipate the definitive treatment. The smoothness of those restorations should get closer to reality to provide periodontal health. This study aims to verify the roughness on different methods of polishing on three brands of acrylic resins. Ninety specimens were made and these were divided into nine groups. Each resin tested was given a control group. From the data obtained by descriptive statistics, were tested within groups. Statistical inference was made by two-tailed tests. Results: we concluded that the resin Classic thermicpolymerized allows a better polish when compared with Luxatemp® Bis-Acryl resins and Dencor® thermoactivated respectively and mecanical polishing was more effective than chemical ones the three types of resin.
Subject(s)
Acrylic Resins , Dental Polishing , Dental Restoration, TemporaryABSTRACT
BACKGROUND: Restorative materials must be capable not only of restoring the patient's masticatory function, but also to rescue the self-esteem of those maculated by a disharmonious smile. Among the esthetic materials available on the market, the choice frequently lies between ceramic or indirect laboratory resin restorations. AIM: This study assessed the resistance to compression of two laboratory resins found on the market, namely Artglass and Targis, considering Omega 900 ceramic from Vita as control. MATERIALS AND METHODS: With the aid of stainless steel matrices, with internal dimensions of 8.0 mm diameter at the base, 9.0 mm in the top portion and 4.0 mm height, 15 test specimens were made, being 5 of each material to be tested. The test specimens were kept in distilled water for 72 hours and submitted to an axial load by the action of a point with a rounded tip 2 mm in diameter, adapted to an EMIC 500 universal test machine. The compression speed was 0.5 mm/min, with a load cell capacity of 200 Kgf. RESULTS: The means of the results were calculated in kilogram-force (Kgf). The results found were treated by analysis of variance (ANOVA) and the differences found among the groups were identified by the Tukey test (5%). CONCLUSION: It was observed that the material Omega 900 (R) offered significantly greater resistance to compression than the other two materials, which did not present statistically significant difference between them.
Subject(s)
Composite Resins , Dental Porcelain , Analysis of Variance , Compressive Strength , Dental Stress Analysis , Inlays , Materials TestingABSTRACT
PURPOSE: The aim of this in vitro study was to evaluate the tensile strength of titanium cylinders cemented on stainless steel abutment mock-ups by the Cerazone system. METHODS AND MATERIALS: Four types of cements were used: glass ionomer, Fuji I (GC); zinc phosphate, Cimento LS (Vigodent); zinc oxide without eugenol, Rely x Temp NE (3M ESPE); and resin cement, Rely x ARC (3M ESPE). Four experimental groups were formed, each composed of 5 test specimens. Each test specimen consisted of a set of 1 cylinder and 1 stainless steel abutment mock-up. All cements tested were manipulated in accordance with manufacturers' instructions. A static load of 5 Newtons (N) for 2 minutes was used to standardize the procedure. The tensile tests were performed by a mechanical universal testing machine (EMIC DL500MF) at a crosshead speed of 0.5 mm/min. RESULTS: The highest bonding values resulting from the experiment were obtained by Cimento LS (21.86 MPa mean), followed by the resin cement Rely x ARC (12.95 MPa mean), Fuji I (6.89 MPa mean), and Rely x Temp NE (4.71 MPa mean). The results were subjected to analysis of variance (ANOVA) and the Student's t test. CONCLUSION: The cements differed amongst them as regards tensile strength, with the highest bonding levels recorded with zinc phosphate (Cimento LS) and the lowest with the zinc oxide without eugenol (Rely x Temp NE).
Subject(s)
Cementation/methods , Dental Cements/chemistry , Dental Prosthesis, Implant-Supported , Dental Stress Analysis , Dental Abutments , Dental Alloys , Glass Ionomer Cements , Resin Cements , Stainless Steel , Tensile Strength , Titanium , Zinc Oxide , Zinc Phosphate CementABSTRACT
Uma das técnicas mais efetivas para inativação do ponto-gatilho (PG) na Síndrome da Dor Miofacial é o agulhamento. Em vista disso, o objetivo deste trabalho foi, através de uma revisão da literatura pertinente, comparar dois tipos de terapia com agulhamento, seco ou com injeção de substâncias, com a finalidade de identificar a mais eficiente com relação à inativação de ponto-gatilho nas regiões da cabeça e pescoço. Ao consultar trabalhos publicados na literatura entre 1994 e 2006, pôde-se concluir que não houve diferenças quanto ao resultado final, sendo ambas as técnicas eficazes.
