Andréa Dias Neves Lago

Universidade Federal do Maranhão | UFMA · Departamento de Odontologia I

Dental caries is a multifactorial, non-communicable disease. Effective treatment options for minimally invasive removal of carious tissue include Papacarie Duo® gel and antimicrobial photodynamic therapy (aPDT). aPDT involves a combination of a light source and photosensitizer. Given that Papacarie Duo® contains a percentage of blue dye, this study...

Photobiomodulation (PBM) is a technique that harnesses non-ionizing light at specific wavelengths, triggering the modulation of metabolic pathways, engendering favourable biological outcomes that reduce inflammation and foster enhanced tissue healing and regeneration. PBM holds significant promise for bone tissue applications due to its non-invasiv...

Objective: The main purpose of this study is to evaluate the effect of dental bleaching with 460 nm LED light on pulp tissue by assessing pulp oxygen saturation (SaO2) and dental sensitivity in different dental groups and follow-up times. Materials and Methods: This study is a randomized clinical trial using a split-mouth design. SaO2 levels were m...

Background: Gingival recession (GR) is described as an apical displacement of the gingival margin in relation to the cementoenamel junction, exposing the root surface to the oral cavity environment. This study aimed to evaluate the clinical results of a bilateral root coverage (RC) of GR associated with an autogenous connective tissue graft (aCTG)...

Este e-book apresenta uma coletânea de estudos que visam aprofundar os conhecimentos na área de Odontologia nas suas mais diversas especialidades: Cirurgia Oral, Dentística, Odontopediatria, Ortodontia, Periodontia e Saúde Coletiva. Os conteúdos abordados focam em uma Odontologia baseada em evidências científicas e que proporcionam uma reflexão da...

Neste livro intitulado “Contribuições científicas em Odontologia – Vol. II”, você encontrará temas relevantes para a sua prática clínica, que superam os limites do conhecimento técnico tradicional, oportunizando reflexões sobre os avanços nas pesquisas científicas odontológicas, com uma gama de estudos desenvolvidos por profissionais e acadêmicos d...

Alternativas são estudadas para diminuição de dor, edema e maior regeneração tecidual no pós-operatório da extração de terceiros molares. A terapia de fotobiomodulação (TFB) tem sido empregada com sucesso, pois além de possuir ação anti-inflamatória e analgésica apresenta também efeito local acelerando a reparação tecidual. O objetivo deste trabalh...

Objective: To assess the evidence available and knowledge gaps in photobiomodulation (PBM) for oral facial pain. Background data: Effective identification of a noninvasive resource for oral facial pain such as PBM may mitigate the risks of invasive therapeutic resources. Methods: Nine electronic databases were searched for systematic reviews report...

Introduction: The light-emitting diode (Led) in the violet spectrum associated or not with hydrogen peroxide (HP) has been suggested as a promising technique for dental bleaching. Violet led has a wavelength of 405-410 nm, which is very close to that of ultraviolet (UV) radiation, and this has raised biological safety concerns. Aim: To investiga...

The use of high-power diode laser technology follows the principles of minimally invasive dentistry. Laser technology is used frequently in pediatric dentistry, especially in surgical procedures, because this approach favors hemostasis, eliminates the use of sutures, improves healing, minimizes treatment time, reduces the sensation of pressure and...

Introduction: The concept of beauty, however a subjective issue, is overvalued in some societies, especially in Brazil. Beautiful people enjoy social advantages and are best evaluated for having positive characteristics. Objective: To quantify, by means of a questionnaire, the ability of interviewees, to evaluate / intuit / attribute specific chara...

Introduction: Bichectomy consists in the partial removal the Bichat ball (BB) of its buccal extension and smoothing the facial contour. The objective of this study is to present, by means of a clinical case, bichectomy surgery with the use of a high-power diode laser and cold scalpel on different sides of the same patient, analyzing the trans-surgi...

Introduction: Bichectomy consists of the partial removal of the Bichat ball (BB) of its buccal extension and smoothing the facial contour. The objective of this study is to present, by means of a clinical case, bichectomy surgery with the use of a high-power diode laser and cold scalpel on different sides of the same patient, analyzing the trans-su...

This study evaluated the knowledge and application of ergonomic principles as well as manifestation of pain by dental students at the Federal University of Maranhão. Forty-four students answered a questionnaire on ergonomic principles. Photographs of the clinical rounds were performed to evaluate the postures adopted, without the students knowing t...

medical and dental treatment in the form of ozonized water and oxygen / ozone gas mixture and associated with photobiomodulation therapy. The evidence map was based on the 3iE evidence searched in the databases: LILACS, PubMed, EMBASE and Cochrane Library, seeking systematic and narrative reviews, analyzed in an excel characterization spreadsheet....

A new LED wavelength, violet LED (VL) with a wavelength between 405 – 410 nm was recently introduced to be used in in-office dental bleaching. In comparison to the blue LED system (440 to 485 nm), the shorter wavelength has more energy carried in its photons and also corresponds to the absorption peak of the stained particles, which lead to whiteni...

The aim of this study was to find adequate parameters of high-power diode laser for obliteration of dental tubules. Newly extracted human teeth (molars) were used for the research that were treated with high-power diode laser and then evaluated by scanning electron microscopy. Roots of 10 healthy teeth were used and prepared in 40 dentin blocks and...

Aim: To conduct a systematic review of the literature on biosafety with the use of lasers. Methods: The systematic review of literature was performed using MEDLINE (Pubmed), Science Direct and Web of Science databases. The electronic search strategy included terms in the Medical Subject Heading (MeSH) related to biosafety in dentistry and laser, f...

Assim, como em outras especialidades na Odontologia, a Odontopediatria também se beneficia com a atuação da radiação laser para diferentes fins clínicos, auxiliando, principalmente, na conduta do paciente infantil. Um fato interessante e necessário para o uso destes dispositivos, especialmente os de alta potência, é o manejo prévio do comportamento...

A “gummy smile,” considered to be exposure of more than 3.0 mm of gingival tissue during a forced smile, negatively affects smile esthetics. The present case series describes the clinical indications and technique for applying botulinum neurotoxin type A (BoNTA) to correct a gummy smile and assesses the outcomes and satisfaction levels of 3 patient...

Biosafety materials used in the correct handling of low power laser equipment may interfere on the power delivered at the target tissue and, possibly, on the effects on biological tissues. The aim of this study was to evaluate the interference of the use of polyvinyl chloride (PVC) and polyethylene (PEAD) protection materials on the output power of...

Antimicrobial Photodynamic Therapy (aPDT) association with photobiomodulation therapy (PBT) should be used in the herpes simplex and has a fundamental role in improving modulation of inflammatory process, immediate pain relief, acceleration of tissue repair. This article reports through a case series, a proposal for an efficient resolution in clini...

Antimicrobial photodynamic therapy (aPDT) has emerged as a promising antimicrobial treatment to growth control of microorganisms as those involved in oral diseases, especially dental caries. Hence, the aim of this study was to evaluate the influence of aPDT - pre-irradiation time (PIT), at different periods, on antimicrobial rate of Streptococcus m...

Objective: This case report proposes a treatment for dentin hypersensitivity (DH) using photobiomodulation (PBT) with low power diode laser. Methods and Results: Male patient, 28 years old, reporting “dental sensitivity,” diagnosed by anamnesis and intraoral examination, with non-carious cervical lesions (NCCL) and DH on teeth 15 to 25, with differ...

Manual de biossegurança para o uso do laser de alta e baixa potência em odontologia.

Purpose: To compare the effect of thermal cycling and erosive challenge on color change, surface roughness, surface loss and biofilm deposition of three resin-based composites. Methods: Three resin-based composites that reproduce the color of gingival tissues [two nanohybrid composites (A and B) and a giomer (C) ] were tested before and after di...

This study aimed to investigate the effect of the n-butanol fraction of Terminalia catappa Linn., (FBuTC) on biofilm of Candida albicans and Candida glabrata , as well as changes in color and roughness of polymethyl methacrylate resin (PMMA). The susceptibility of C. albicans and C. glabrata to FBuTC was evaluated by means of the Minimum Inhibitory...

Objective: To report a clinical case using the photobiomodulation in the treatment of the temporomandibular dysfunction providing analgesia and greater buccal opening. Case report: Patient, 24-year-old, female, with temporomandibular dysfunction was treated in the “Laser Therapy in Dentistry” extension project at the Federal University of Maranhão....

This study investigates the color correspondence of resin cements and try-in pastes, and the color stability of bonded lithium disilicate ceramic disks. Resin composite disks were fabricated (n = 36) to serve as the background for lithium disilicate disks prepared in two thicknesses (0.5 and 1.0 mm, n = 18 each). Two brands were used for try-in and...

Introduction: The labial frenum is a fold of mucous membrane that attaches the lip and the cheek to the alveolar mucosa, the gingiva, and the underlying periosteum. In some cases, its presence can cause a midline diastema, periodontal diseases related to food impaction, or retention of biofilm, among others. In such cases, lip frenectomy is indicat...

Introduction: The labial frenum is a fold of mucous membrane that attaches the lip and the cheek to the alveolar mucosa, the gingiva, and the underlying periosteum. In some cases, its presence can cause a midline diastema, periodontal diseases related to food impaction, or retention of biofilm, among others. In such cases, lip frenectomy is indicat...

Ankyloglossia or tongue-tie is a congenital dysfunction, characterized by an abnormality of the tongue frenulum, where it can be adhered in a short form to the mouth floor or too close to the tip of the tongue, of fibrous appearance. The indication of surgical removal of the lingual frenulum occurs when the movements of the tongue and the masticati...

Ankyloglossia or tongue-tie is a congenital dysfunction, characterized by an abnormality of the tongue frenulum, where it can be adhered in a short form to the mouth floor or too close to the tip of the tongue, of fibrous appearance. The indication of surgical removal of the lingual frenulum occurs when the movements of the tongue and the masticati...

Ankyloglossia or tongue-tie is a congenital dysfunction, characterized by an abnormality of the tongue frenulum, where it can be adhered in a short form to the mouth floor or too close to the tip of the tongue, of fibrous appearance. The indication of surgical removal of the lingual frenulum occurs when the movements of the tongue and the masticati...

Objetivo: realizar uma revisão integrativa da literatura a respeito da RPTC em dentes permanentes considerando técnicas, materiais comumente aplicados e taxas de sucesso. Material e Métodos: foi realizada uma busca nas bases de dados Pubmed e Scielo nos últimos 20 anos (de 1996 a 2016), seguindo critérios de inclusão e exclusão pré-determinados. Re...

The aim of this in vitro study was to assess the influence of distinct surface treatments on the microhardness and color of enamel that will be bleached. Surface treatments are tested, accordingly: G1, no treatment; G2, 2% sodium fluoride; G3, casein phosphopeptide paste; G4, 2% fluoride+Nd:YAG laser. Forty blocks from bovine teeth composed the sam...

The aim of this in vitro study was to assess the influence of distinct surface treatments on the microhardness and color of enamel that will be bleached. Surface treatments are tested, accordingly: G1, no treatment; G2, 2% sodium fluoride; G3, casein phosphopeptide paste; G4, 2% fluoride+Nd:YAG laser. Forty blocks from bovine teeth composed the sam...

Introducao: A percepcao visual dos elementos dentarios esta diretamente relacionado as caracteristicas opticas, que advem da interacao da luz com o esmalte, a dentina e a polpa dentaria. Define-se as propriedades oticas de acordo com os diferentes graus de translucidez, opacidade, fluorescencia e opalescencia do esmalte e dentina. Objetivo: O objet...

Corresponding author at: Department of Dentistry, Federal University of Maranhão (UFMA), Av. dos Portugueses, 1966, Bacanga, São Luís, MA, Zip Code 65080-805, Brazil.

The present study investigated how a hybrid light source (LED/laser) influences temperature variation on the enamel surfaces during 35% hydrogen peroxide (HP) bleaching. Effects on the whitening effectiveness and tooth sensitivity were analyzed. Twenty-two volunteers were randomly assigned to two different treatments in a split-mouth experimental m...

Introducao: Diante dos avancos tecnologicos, tem ocorrido um aumento na expectativa de vida, favorecendo o desenvolvimento de estudos em novos materiais que auxiliem na manutencao da vida humana. Tal abordagem viabiliza alternativas para substituicao e reparos por tecidos sofridos por fraturas, traumas e patologias. E e nesse contexto que os biomat...

Introdução: O clareamento dentário vem sendo bastante popularizado, novos produtos surgem e a luz aparece como forma de acelerar o processo clareador, entretanto a literatura ainda é controversa sobre usar ou não uma fonte de luz externa. Objetivo: Realizar uma revisão crítica da literatura dos últimos dez anos acerca do uso das fontes de luz como...

Resumo Introdução: A crescente demanda por materiais restauradores biocompatíveis e favoráveis do ponto de vista estético impulsi-onou o surgimento de novos materiais no mercado odontológico e consequente aumento de estudos para avaliação dessas características. Com isso, os conhecimentos das propriedades físicas, mecânicas e biológicas dos materia...

Objective: the aim of this in vivo study was to analyze the effect of the combination of a hybrid light source (LED/laser) to 35% hydrogen peroxide in-office bleaching on temperature variation on the enamel surface. Methods: After being informed of the objectives of the study, 22 volunteers were selected and randomly assigned to two different treat...

Knowledge of tooth anatomy is essential to practicing the various dental specialties. All dental schools must have a discipline responsible for teaching dental anatomy in their curriculum, in which theoretical content is conveyed to students and later reproduced by them in dental carving wax. Thus, the aim of this study was to assess whether the th...

The aim of this in vitro study was to qualitatively analyze the morphological characteristics of the adhesive interface using different aging methods. Twenty-fi ve human recently extracted erupted third molars were divided into fi ve groups (n = 05) according to the aging protocol used: G1, distilled water for 24 h; G2, distilled water for 6 months...

Resumo Introdução: A estética vem ganhando destaque na Odontologia e o clareamento aparece como uma forma conservadora para se obter harmonia de cor nos dentes. Objetivo: Avaliar, in vitro, a microdureza do esmalte dental humano após o clareamento de consultório com agente a base de peróxido de hidrogênio a 35%, contendo ou não cálcio. Métodos: Vin...

Objective: To evaluate the bond strength of a composite resin to the bovine enamel bleached with 35% hydrogen peroxide. It was used an etching-and-rinse adhesive system employed immediately, 7 and 14 days after the bleaching. Materials and methods: Twenty bovine teeth were randomly distributed into 4 groups (n = 5), 3 experimental and 1 control....

Aim: To evaluate the leakage on Er,Cr:YSGG laser-and bur-prepared Class V cavities restored with a silorane-based composite resin using different insertion techniques Methods: 40 cavities were outlined according to: the type of instrument [Er,Cr:YSGG laser (3.0 W power, energy per pulse of 150 mJ, fluence of 53.57J/cm 2 , pulse duration of 140-200...

Objective: The aim of this in vitro study was to evaluate the efficacy of varied surface treatments on the bleached enamel with 35% hydrogen peroxide for the prevention of the stain absorption. Method: Fifty-five bovine incisors were subjected to bleaching with 3 applications of 35% hydrogen peroxide and randomly distributed into five groups,...

Resumo O objetivo deste trabalho foi apresentar uma revisão da literatura sobre a síndrome do dente gretado (SDG), relatando sua etiologia, sin-tomas, métodos de diagnóstico e tratamento. A SDG corresponde a um conjunto de sinais e sintomas associados à presença de uma greta localizada em esmalte e dentina, cujo diagnóstico deverá ser o mais precoc...

Objective: The aim of this study was to evaluate, in vitro, the microhardness of human enamel after office bleaching with hydrogen peroxide 35% with and without calcium. Method: This study was approved by research ettics committee of Universidade de São Paulo. 24 human teeth were sliced until enamel fragments ± 5x5mm were obtained. Specimens...

Objective: To assess the influence of different surface treatments (fluoride, CPP-ACP or Nd:YAG laser associated with fluoride), 24 h before the whitening procedure, on morphology, microhardness and color change of the enamel. Methods: Eighty-eight bovine enamel blocks were obtained: 08 enamel blocks were prepared for surface analysis (n=2), 40 e...

Objectives: The aim of this in vitro study was to assess the changes on enamel microhardness when exposing it to fluoride, CPP-ACP or Nd: YAG laser associated with fluoride 24 h before the whitening treatment. Methods: Forty bovine enamel blocks had their surfaces planned and polished and were randomly divided into four experimental groups (n=10):...

This study aimed at evaluating the bond strength of a composite resin to the bovine enamel bleached with 35% hydrogen peroxide. It was used an etching-and-rinse adhesive system employed immediately, 7 and 14 days after the bleaching. Twenty bovine teeth were randomly distributed into 4 groups (n=5), 3 experimental and 1 control. G1: unbleached + re...

Benefícios dos lasers de alta e baixa potência no procedimento restaurador direto: relato de caso Benefits of low and high power lasers on direct restorative procedures: a case report RESUMO Lasers de alta e baixa potência têm sido amplamente utilizados em diversas especialidades da Odontologia. Na Dentística, podem ser utilizados em diferentes eta...

The use of laser irradiation for dental surface treatment may increase tooth-composite bond strength. Its use on bleached teeth may decrease the waiting time between bleaching and restorative procedures. This study aimed to evaluate the bond strength between a composite resin and bovine enamel bleached with 35% hydrogen peroxide and etched with Er:...