Ligia Pinelli - Academia.edu (original) (raw)

Papers by Ligia Pinelli

Arquivos de Ciências da Saúde da UNIPAR, 1997

O envelhecimento populacional e hoje um fenomeno caracteristico em diversos paises e dados demons... more O envelhecimento populacional e hoje um fenomeno caracteristico em diversos paises e dados demonstram que a vida media vem sofrendo consideravel aumento. O atendimento odontologico ao paciente geriatra esta sendo abordado na literatura com frequencia notavel nos ultimos anos. No entanto, se comparada a literatura internacional, pouco se fala de Odontogeriatria no Brasil. Neste artigo, as autoras relatam brevemente, dados obtidos na literatura a cerca deste topico. Sao abordadas algumas alteracoes fisiologicas e patologicas que frequentemente acometem o idoso e quais suas implicacoes no tratamento odontologico, evidenciando a importância de realizar uma anamnese bem detalhada. Com os dados obtidos, pode se chegar a conclusao que, se devidamente informado, o Cirurgiao-Dentista pode prestar atendimento satisfatorio a esta parcela crescente da populacao.

The Journal of oral implantology, 2017

The lack of compatible prosthetic components can be a complication during oral rehabilitation usi... more The lack of compatible prosthetic components can be a complication during oral rehabilitation using outdated implants. The aim of the present clinical report was to describe an alternative technique for the fabrication of a maxillary implant-supported overdenture in a patient with 20-year-old dental implants using castable spherical patterns and ball attachments. The patient had been wearing a relined bar/clip overdenture in the mandible on 4 external-hexagon dental implants and a relined complete denture in the maxilla on 4 internal-hexagon implants due to abutment screw fracture inside of the implants, losing the attachment system. The remaining maxillary dental implants did not possess attachments compatible with current systems due to configuration changes by the manufacturer in the dental implant's platform and the components over time. Therefore, castable spherical patterns and cast ball attachments were used to fabricate a maxillary implant-supported overdenture. The mand...

One of the main steps for the success of the implant supported prostheses is the impression techn... more One of the main steps for the success of the implant supported prostheses is the impression technique because the accuracy to fi t and the passivity of the cast metal framework are important. This fi t will guarantee the health of the tissue/titanium interface and adjacent structures. Thus, the aim of this study was to review and elucidate

The Journal of Prosthetic Dentistry, 1998

Purpose. This in vitro study compared the cytotoxicity and fluoride release of two resin-modified... more Purpose. This in vitro study compared the cytotoxicity and fluoride release of two resin-modified glass ionomer composites (GICs), a conventional GIC, and one composite. Material and Methods. The following materials were obtained: two resin-modified GICs (Vitremer Tri-Cure [VT], 3M; and Fuji II LC [FL], GC); one conventional GIC (Ketac-Fil [KF], ESPE); and one composite (Silux Plus [SP], 3M). Specimens (10 mm × 2.5 mm high) were prepared from each material. Twenty-four hours later, they were placed in deionized distilled water and agitated for 1, 4, or 7 days at room temperature. Collected eluates were tested using 3T3 mouse fibroblasts. Cytotoxicity of the eluates were assessed with a MTT assay, and the fluoride concentration of each was measured with an ion-specific electrode and a digital ionizer. Three specimens were made for each material and extraction time for each test. A two-way analysis for variance and a Tukey test (α = 0.05) was used to analyze the collected data. Results. Minimal cytotoxicity of all materials was exhibited. No material exhibited a great increase in cytotoxicity with increased elution time. The cytotoxicity of VT material was significantly higher than FL and SP materials. The resin-modified and conventional GICs were found to release more fluoride than SP material. VT and KF materials released significantly more fluoride at each time interval than FL and SP materials. VT and KF materials released similar amounts of fluoride. Linear regression analysis showed a correlation between release of fluoride and cytotoxicity. Conclusions. VT material was the most cytotoxic material evaluated. FL and SP materials were not cytotoxic. VT and FL materials released significantly different amount of fluoride; therefore the brand formulation may influence such release. 27 References.-DL DIXON

Introduction: Currently, there are many questions regarding the cleaning methods seeking greater ... more Introduction: Currently, there are many questions regarding the cleaning methods seeking greater efficiency and less loss of burs. Aim: the aim of this study was to evaluate the influence of cleaning methods on the cutting efficiency and morphological characteristics of stainless steel burs tungsten carbide (carbide). Materials and method: Thirty burs were divided into five groups (n = 5) according with the cleaning method: L 1 - steel brush, L 2 - nylon brush, L 3 - ultrasound + distilled water, L 4 - ultrasound + descaling solution and L 5 - no cleaning method (control). The burs were used for the cutting of bovine enamel during six periods of 12 minutes each. After each period, the burs were cleaned (except L 5 ) following the protocol established for each group. The cutting efficiency was determined by mass loss and morphological characteristics. Result: The average amount of wear after 72 minutes of use were L 1 = 0.3558 g; L 2 = 0.4275 g; L 3 = 0.4652 g; L 4 = 0.4396 g e L 5 = 0.4854 g; significant differences in the time of use (p < 0.001) and cleaning method (p < 0.001). The L 1 group showed the worst performance. Regardless of the experimental group, morphological analysis revealed alterations in the cutting blades soon after the first 12 minutes, being L 1 the most affected group. Conclusion: The cleaning with wire brush was the most damaging method to the cutting efficiency and to the morphology of carbide burs.

Resumo: O objetivo deste trabalho foi avaliar o grau de satisfação de pacientes portadores de pró... more Resumo: O objetivo deste trabalho foi avaliar o grau de satisfação de pacientes portadores de próteses parciais fixas (PPFs) e os fatores mais influentes nessa avaliação. Elaborou-se um questionário abrangendo desde o histórico das próteses até fatores relacionados com ...

Salusvita, 2008

página 1 de 1, 1 / 1, LILACS, seleciona. para imprimir. Fotocópia. Texto completo. Id: 562308. Au... more página 1 de 1, 1 / 1, LILACS, seleciona. para imprimir. Fotocópia. Texto completo. Id: 562308. Autor: Basso, Michael Frederico Manzolli; Del'Acqua, Marcelo Antonialli; Segalla, José Cláudio Martins; Silva, Regina Helena Barbosa Tavares da; Pinelli, Lígia Antunes Pereira. ...

Operative Dentistry, 2011

Clinical Relevance Knowledge of the characteristics and etiologies of noncarious cervical lesions... more Clinical Relevance Knowledge of the characteristics and etiologies of noncarious cervical lesions assists dentists in selecting an appropriate treatment and improving the prognosis.

Revista odonto ciência, Jan 23, 2007

Prevalência de doenças crônicas em pacientes geriátricos... Pinelli LAP, et al.

Resumo: Considerando o alarmante quadro de envelhecimento com dependências e a crescente instituc... more Resumo: Considerando o alarmante quadro de envelhecimento com dependências e a crescente institucionalização, o cuidador formal assume destacada importância no processo de cuidados e promoção de saúde do idoso institucionalizado. Assim, o objetivo deste estudo foi avaliar o conhecimento sobre saúde bucal, a sobrecarga percebida e o impacto da saúde bucal na qualidade de vida de cuidadores formais de idosos de duas ILPs. Um estudo transversal com 41 cuidadores formais entrevistados coletou sócio-demográficos, variáveis relacionadas ao conhecimento em saúde bucal e aplicou as escalas Burden Interview-BI e OHIP-14, avaliando-se descritivamente. Os principais resultados mostraram que a idade média dos cuidadores foi de 38 anos, sendo a sua maioria de mulheres casadas; 48,8% entre 11 e 16 anos de escolaridade formal, com tempo médio de carreira de 1,5 ano. Considerando o grau de conhecimento em saúde bucal, 87,8% dos cuidadores analisados haviam recebido instrução prévia sobre como cuidar da saúde bucal do idoso, embora 41,5% se recusasse a prestar os devidos cuidados bucais rotineiros, principalmente devido à falta de cooperação do idoso. A partir da aplicação da escala Burden Interview notou-se que 22% dos cuidadores apresentaram sobrecarga de trabalho ligeira e para 2,4% dos mesmos, esta foi intensa. Entre as sete dimensões do OHIP-14 verificou-se maior impacto entre os cuidadores para o desconforto psicológico (15,9%) com média geral de 0,53 + 0,87 pontos.

Journal of Adhesive Dentistry, Oct 1, 2014

To evaluate the effect of grinding and airborne-particle abrasion on the biaxial flexural strengt... more To evaluate the effect of grinding and airborne-particle abrasion on the biaxial flexural strength (BFS) and phase transformation of a Y-TZP ceramic, and examine whether sintering the veneering porcelain renders the previous heat treatment recommended by the manufacturer unnecessary. Lava zirconia specimens (N = 108) were obtained with the following dimensions: 14.0 mm diameter × 1.3 mm thickness (n = 36) and 14.0 mm × 1.6 mm (n = 72). The thicker specimens were ground with diamond burs under irrigation and received (heat-treated groups) or not (non-heat-treated groups) a heat treatment (1000°C for 30 min) prior to the four firing cycles applied to simulate the sintering of the veneering porcelain. All specimens were air abraded as follows (n = 12): 1) 30-μm silica-modified Al₂O₃particles (Rocatec Soft); 2) 110-μm silica-modified Al₂O₃particles (Rocatec Plus); and 3) 120-μm Al₂O₃particles, followed by Rocatec Plus. Three specimens of each group were analyzed by x-ray diffraction (XRD) to assess the monoclinic phase content (%). The BFS test was performed in a mechanical testing machine (Instron 8874). Data (MPa) were analyzed by two-way ANOVA (grinding × airborne-particle abrasion and heat treatment × airborne-particle abrasion) and Tukey&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;s post-hoc test (α = 0.05). The strength reliability was analyzed using the Weibull distribution. Grinding significantly decreased the BFS of the non-heat-treated groups (p &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; 0.01). Within the ground groups, the previous heat treatment did not influence the BFS (p &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;gt; 0.05). Air abrasion only influenced the BFS of the ground/heat-treated groups (p &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; 0.01). For the non-heat-treated groups, the grinding did not decrease the Weibull modulus (m), but it did decrease the characteristic strength (σ0). For Rocatec Soft and 120-μm Al₂O₃particles + Rocatec Plus, the heat-treated groups presented lower m and higher σ0 than the ground/non-heat-treated groups. The independent variables did not seem to influence phase transformation. Air-abraded surfaces presented higher monoclinic zirconia content than the as-sintered and ground surfaces, which exhibited similar content. Even under irrigation, grinding compromised the Y-TZP ceramic strength. The sintering of the veneering porcelain rendered the previous heat treatment recommended by the manufacturer unnecessary. Airborneparticle abrasion influenced the strength of heat-treated zirconia.

Brazilian dental science, Aug 16, 2010

Journal of Prosthetic Dentistry, May 1, 2013

Although cement-retained implant prostheses are widely used, the quantification of optimal retent... more Although cement-retained implant prostheses are widely used, the quantification of optimal retention remains controversial, and new dental luting agents should be evaluated. The purpose of this study was to compare, in vitro, the casting retention on implant abutments after cementation with 3 commercially available luting agents and an experimental luting agent (castor oil polyurethane, COP) with variable weight percentages (wt%) of calcium carbonate (CaCO3). Seventy-two palladium-silver cast copings were fabricated and divided into 6 groups: Temp Bond interim cement (TB); zinc phosphate cement (ZP); Rely X ARC resin cement (RX); pure COP (COP); COP + 10% wt% CaCO3 filler (COP 10); and COP + 50% wt% CaCO3 filler (COP 50). After cementation, the specimens were stored in distilled water at 37°C for 24 hours and subjected to removal force tests in a universal testing machine (5 kN; 0.5 mm/min). Statistical analyses were performed with the Kruskal-Wallis and Student-Newman-Keuls tests (α=.05). The median values of casting retention (N) were as follows: TB=57.20 ±10.4; ZP=343.56 ±50.3; RX=40.07 ±9.7; COP=258.98 ±41.4; COP 10=466.57 ±79.3; and COP 50=209.63 ±31.4. The Kruskal-Wallis test showed significant differences among the groups (P&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt;.01). TB and RX had the lowest mean retention values; COP, COP 10, and COP 50 were equal to ZP, and COP 10 had the highest retention. The casting retention on implant-abutments provided by COP was similar to that of copings cemented with zinc phosphate and may be influenced by the addition of calcium carbonate.

Brazilian Journal of Oral Sciences, Jul 1, 2007

The aim of this investigation was to accomplish an overview about the principles of the indicatio... more The aim of this investigation was to accomplish an overview about the principles of the indication and of the success parameters involving immediate and delayed loading dental implants procedures. Studies about the philosophies (immediate and delayed loading dental implants) and their clinical indications will be discussed in order to overview the rules for the clinical success in both techniques. In addition, studies regarding the criteria for immediate loading implants as primary stabilization, surface treatments and bone density and amount will be also analyzed. More important than the philosophy selection, is how and when to use it according to biomechanical rules and principles. Among the vast limitations pointed by the literature regarding procedures of immediate and delayed loading are evidenced the parafunctional habits, primary stabilization, bone quality, surface treatments and the number of dental implants. The anterior region of the jaw seems to be associated with a major percentage of satisfactory results, regardless of rehabilitation procedures. Although several studies have demonstrated high success rates for the immediate loading dental implants, several aspects remain without an explicit definition and further studies are needed to elucidate some reservations.

Brasil-Estatísticas. 2. Idosos-Brasil-Condições sociais. I. Monteiro, Solange Aparecida de Souza.... more Brasil-Estatísticas. 2. Idosos-Brasil-Condições sociais. I. Monteiro, Solange Aparecida de Souza. CDD 305.260981 Elaborado por Maurício Amormino Júnior-CRB6/2422 O conteúdo dos artigos e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos autores. 2019 Permitido o download da obra e o compartilhamento desde que sejam atribuídos créditos aos autores, mas sem a possibilidade de alterá-la de nenhuma forma ou utilizá-la para fins comerciais. www.atenaeditora.com.br Políticas de Envelhecimento Populacional Capítulo 5 razão das diferentes vivências dos idosos, que podem ser passados a população, de modo geral, validado pelo aprendizado e conhecimento. Após estas considerações, ressaltamos que este trabalho não possui a pretensão de se esgotar por aqui, antes, gostaríamos que este trabalho possa ser fonte de interesse para que pesquisas sejam realizadas e apontem outras possibilidades de informação, por meio da prática da educação não formal, como por exemplo, um guia multidisciplinar de orientações a profissionais que trabalham com este segmento da população.

Congresso de Extensão Universitária, 2013

Universidade Estadual Paulista (UNESP), Faculdade de Odontologia (FOAR), Departamento de Materiai... more Universidade Estadual Paulista (UNESP), Faculdade de Odontologia (FOAR), Departamento de Materiais Odontologicos e Protese, Araraquara, SP, Brasil