Jorge Perdigao

Jorge Perdigao

DMD, MS, PhD

About

301
Publications
117,438
Reads
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12,097
Citations
Additional affiliations
January 1997 - November 1999
University of North Carolina at Chapel Hill
Position
  • Professor
December 1996 - November 1999
University of North Carolina at Chapel Hill
Position
  • Professor (Associate)
December 1996 - November 1999
University of North Carolina at Chapel Hill
Position
  • Professor (Associate)
Education
September 1993 - June 1995
Catholic University of Leuven (KUL)
Field of study
  • Dentistry, Dental Materials
June 1991 - May 1993
University of Iowa
Field of study
  • Operative Dentistry
June 1991 - December 1992
University of Iowa
Field of study
  • Operative Dentistry

Publications

Publications (301)
Article
Full-text available
Objectives: To address contemporary concepts in adhesive dental materials with emphasis on the evidence behind their clinical use. Overview: Adhesive dentistry has undergone major transformations within the last 20 years. New dental adhesives and composite resins have been launched with special focus on their user-friendliness by reducing the numbe...
Article
Full-text available
Objectives: To evaluate the effect of the application of an additional hydrophobic bonding resin on the clinical performance of a universal adhesive applied in etch-and-rinse (ER) or self-etch adhesive (SE) strategy in non-carious cervical lesions (NCCLs) after 5 years. Materials and methods: Scotchbond Universal Adhesive (3M Oral Care) was appl...
Preprint
Objectives To evaluate the effect of the application of an additional hydrophobic bonding resin on the clinical performance of a universal adhesive applied in etch-and-rinse (ER) or self-etch adhesive (SE) strategy in non-carious cervical lesions (NCCLs) after 5 years. Materials and Methods Scotchbond Universal Adhesive (3M Oral Care) was applied i...
Preprint
Background The etiology of dental caries remains poorly understood. With the advent of next generation sequencing, a number of studies have focused on the microbial ecology of the disease. However, taxonomic associations with caries have not been consistent. Researchers have also pursued function-centric studies of the caries microbial communities...
Article
Full-text available
The prognosis of root filled teeth depends not only on a successful root canal treatment but also on the restorative prognosis. This critical review discusses the advantages and limitations of various methodologies used to assess the load capacity or clinical survivability of root filled teeth and restorations. These methods include static loading,...
Article
Objectives To evaluate the effect of a glutaraldehyde-based desensitizer on the postoperative sensitivity (POS) in posterior resin composite restorations up to 12 months using a universal adhesive (Tetric N-Bond Universal) with selective enamel etching (SE) or an etch-and-rinse (ER) strategy. Methods Class I and class II resin composite restoratio...
Article
Purpose: The goals of this review are (1) to describe the evidence behind the use of ceramics vs composite resin to restore teeth with anterior veneers using a minimally-invasive strategy; and (2) to discuss the choice of materials and techniques for anterior veneer restorations. Overview: In recent years new adhesive restorative materials and...
Article
Objective: To evaluate the microshear bond strength (mSBS) of 10 universal adhesive systems applied on five different CAD/CAM restorative materials, immediately and after thermal aging. Methods and materials: Five CAD/CAM materials were selected: 1) feldspathic glass ceramic (FeCe); 2) pre-polymerized reinforced resin composite (ReRC); 3) leucit...
Article
Full-text available
Objective: To evaluate microshear bond strength (μSBS) and nanoleakage (NL) of three universal adhesives used under buildup composites using different curing modes, at baseline and after 6-months (6m). Methodology: Dentin specimens of 55 molars were assigned to: Clearfil Universal Bond[CFU], Prime&Bond Elect[PBE] and One Coat 7 Universal[OCU]. All...
Article
Full-text available
Objective: To evaluate the five-year clinical performance of Scotchbond Universal Adhesive (SU; 3M Oral Care, St. Paul, MN, USA) in non-carious cervical lesions (NCCLs) using two evaluation criteria. Methods: Thirty-nine patients participated in this study. Two hundred restorations were assigned to four groups: SU-ERm: etch-and-rinse + moist den...
Article
Full-text available
The essential goal of any adhesive restoration is to achieve a tight and long-lasting adaptation of the restorative material to enamel and dentin. The key challenge for new dental adhesives is to be simultaneously effective on two dental substrates of conflicting nature. Some barriers must be overcome to accomplish this objective. While bonding to...
Presentation
Full-text available
The etiology of dental caries, the most common chronic disease globally, hasn't been discovered yet. With the advent of the revolutionary next generation sequencing, a significant number of studies have focused on identifying the microbial ecology of disease. However, microbial communities display considerable variation between affected and healthy...
Article
Objective: There is not a clear understanding of the ultra-morphology of enamel white spot lesions. The purpose of this study is to characterize resin infiltration of enamel white spot lesions using electron microscopy. Materials and methods: Enamel sections with sound enamel and white spot lesions were sectioned from extracted teeth and assigned t...
Article
Objectives This double-blind randomized clinical trial evaluated the influence of pre-treatment with proanthocyanidins (PA) from grape seed extract on the clinical behavior of a simplified etch-and-rinse adhesive placed in non-carious cervical lesions (NCCLs) over 6- and 24-months. Materials and methods A total of 135 restorations were randomly in...
Article
Full-text available
Objectives To evaluate if the addition of a layer of a hydrophobic bonding resin to the recommended application sequence of a universal adhesive improves the respective clinical behavior in non-carious cervical lesions (NCCLs) after 36 months. Materials and methods Scotchbond Universal Adhesive (SBU, 3M Oral Care) was applied in NCCLs of 39 subjec...
Article
Objectives: To evaluate the effect of a methacryloyloxydecyl dihydrogen phosphate (MDP)–containing silane coupling agent and universal adhesive, used alone or in combination, on the microshear bond strength (μSBS) to zirconia after 24 hours of water storage (24h) and after 10,000 thermocycles (TC), complemented with chemical analysis of the surface...
Article
Full-text available
Increasing demand for simplified and user‐friendly adhesive systems has led to the development of a new class of adhesives termed as Universal Adhesives (UAs). The term “Universal” reflects manufacturers' claims that these adhesives can be applied with any adhesion strategy and offer the versatility of use with a variety of direct and indirect rest...
Article
Full-text available
Article
Objective: To compare the clinical behavior of Proanthocyanidins (PA)-free and PA-containing two-step etch-and-rinse adhesive used underneath resin composite restorations in non-carious cervical lesions (NCCLs) over a 6- (6 M) and 24-month (24 M) period. Methods: 135 restorations were randomly placed in 45 subjects. The NCCLs were conditioned (3...
Article
Statement of problem: The polymerization of computer-aided design and computer-aided manufacturing (CAD-CAM) composite resins during their manufacture enhances their physical properties and biocompatibility but might compromise their reparability. Purpose: The purpose of this in vitro study was to determine the microtensile bond strength and nan...
Article
Objective: To compare the effect of hydrofluoric acid (HF) vs self-etching ceramic primer on resin cement microshear bond strength (μSBS) and ultramorphology of lithium disilicate (LD) ceramic. Methods and materials: LD (IPS e.max CAD, Ivoclar Vivadent) blocks (14×4×2 mm3) were polished to 1200 grit and assigned to nine groups (n=5): CON: contro...
Article
Full-text available
Avaliou-se a resistência ao microcisalhamento (RUM) e a nanoinfiltração (NI) de adesivos universais aplicados como sistemas convencionais em restaurações indiretas com ou sem ativador de autopolimerização (AA) usando diferentes protocolos de polimerização. Utilizou-se dentina oclusal de 55 molares humanos. Os espécimes foram alocados aleatoriamente...
Article
Background: The primary objective of this systematic review was to investigate the survival of full-coverage restorations fabricated by using digital impressions (DIs) versus that of those fabricated by using conventional impressions. The authors also compared secondary outcomes of marginal and internal fit and occlusal and interproximal contacts....
Conference Paper
Statement: Research data concerning the clinical success prefabricated posts and cast dowel and core (CDC)1, and the importance of full-coverage restoration for endodontically-treated teeth (ETT) to prevent fracture have offered contrasting recommendations2-3. Multiple studies have reported crown and root fracture as a catastrophic failure of ETT1-...
Article
Purpose: Short initial light curing or “tack curing” is used to create a semi-gel state in luting cements for easier excess material cleanup. The effect of tack curing on the final cure of luting cements was measured in terms of hardness. Materials and Methods: Three cement types were tested: two dual-curing composite cements (RelyX Unicem 2; Maxce...
Article
Purpose: To study the influence of a polyalkenoate copolymer (VCP) on the immediate (24 h) and 6-month dentin bonding stability of VCP-based adhesives, using microtensile bond strength (μTBS), nanoleakage (NL), and ultramorphological analyses (FE-SEM). Materials and methods: Eighty-four caries-free molars were randomly assigned to seven adhesive...
Article
We reviewed the literature to evaluate: a) The compliance of randomized clinical trials (RCTs) on bleaching with the CONSORT; and b) the risk of bias of these studies using the Cochrane Collaboration risk of bias tool (CCRT). We searched the Cochrane Library, PubMed and other electronic databases, to find RCTs focused on bleaching (or whitening). T...
Article
This clinical report illustrates a conservative technique to mask enamel discolorations in maxillary anterior teeth caused by hypomineralization associated with enamel fluorosis and subsequent direct resin composite to improve the anterior esthetics. The treatment consisted of at-home whitening with 10% carbamide peroxide gel with potassium nitrate...
Article
Objectives: To measure microshear bond strength (μSBS) and nanoleakage (NL) of self-etch universal adhesives under core buildup restorations using different curing protocols, at 24h and after 6-month water storage. Methods: Middle dentin of 55 molars was divided into: Clearfil Universal Bond [CFU], Prime&Bond Elect [PBE], and One Coat 7 Universa...
Article
Full-text available
Purpose: To evaluate the effect of a silane and an adhesive containing MDP, used alone or combined in the same solution, on the microshear bond strength (μSBS) to lithium disilicate ceramics immediately and after 1-year water storage, and compare the bond strength results with the Raman spectra of the treated lithium disilicate surfaces. Material...
Poster
Full-text available
Dual-cured buildup composites bonded with self-etch universal adhesives – adhesive properties
Poster
Full-text available
Objectives: To evaluate (1) the effect of 10-MDP (MDP) in the composition of silane; and (2) the use of combined silane/universal adhesive in the same solution or in separate solutions on the immediate (24h) and 1-year (1y) water storage microshear bond strength (μSBS) to lithium disilicate ceramic [LD]. Methods: 30 LD CAD/CAM blocks were cut into...
Poster
Full-text available
Objectives: To evaluate (1) the effect of 10-MDP (MDP) in the composition of silane; and (2) the use of combined silane/universal adhesive in the same solution or in separate solutions on the immediate (24h) microshear bond strength (μSBS) to 3Y-TZP [ZR]. Methods: 30 ZR CAD/CAM blocks were cut into 4 rectangular sections, and processed as recommend...
Book
This book reviews the evidence relating to the mechanisms, clinical efficacy, safety/toxicity, and clinical application of tooth whitening techniques and materials. All clinical techniques are profusely illustrated step by step. The book is divided into four parts, the first of which explains how tooth whitening with peroxides works and examines th...
Article
Full-text available
Chapter
Although dental professionals have an armamentarium of techniques for disguising or removing tooth discolorations, these techniques are not always successful. This chapter will focus on restorative options for discolored vital and nonvital teeth.
Chapter
Enamel microabrasion has been used to remove hypomineralized areas caused by enamel fluorosis or those caused by an idiopathic condition. The combination of at-home whitening with 10 % carbamide peroxide in a custom-fitted tray and enamel microabrasion is discussed and illustrated in this chapter as a successful treatment combination in cases of br...
Chapter
Tooth whitening outcomes may be optimized when different bleaching techniques are combined. For patients with generalized physiological tooth discoloration and darkened endodontically treated teeth, internal tooth whitening of these nonvital teeth followed by at-home whitening of both arches is the recommended treatment. Dentists must inform their...
Chapter
The treatment of discolored anterior teeth may involve combined techniques. This clinical sequence illustrates the successful bleaching of “yellow” teeth with at-home whitening using 10 % carbamide peroxide in a custom-fitted tray, followed by masking idiopathic white spots with enamel etching with HCl followed by resin infiltration.
Article
Several techniques have been used within the last 170 years to lighten discolored endodontically treated teeth. Internal whitening or intracoronal whitening offers some advantages over more invasive treatments, as: (1) it is relatively easy to carry out; (2) it involves the removal of minimal tooth structure; and (3) the cost of treatment is low co...
Chapter
As discussed in Chap. 6, the esthetic appeal of anterior teeth may benefit from at-home whitening prior to esthetic rehabilitation with veneers or prior to recontouring clinical crowns with direct resin-based composite restorations. This clinical case illustrates the treatment details of a patient who wanted to change the color and the length of he...
Chapter
Peroxides have been used to whiten teeth for over a hundred years. The popularity of dental whitening has increased with the introduction of nightguard vital whitening in 1989, as the appearance of the dentition and the color of the teeth have increasingly become a concern for a large number of people. Current methods for at-home whitening include...
Article
Full-text available
Purpose: To evaluate the microshear bond strength (μSBS) of several universal adhesive systems applied on five different indirect restorative materials. Materials and methods: Five CAD/CAM materials were selected: 1) indirect resin composite (LAV); 2) feldspathic glass ceramic (VTR); 3) leucite-reinforced glass-ceramic (EMP); 4) lithium disilica...
Article
Purpose: To evaluate the chemical interaction between synthetic hydroxyapatite (HAp) and polyalkenoic acid copolymer- based (also known as Vitrebond copolymer [VCP]) adhesives. Materials and Methods: Six dentin adhesive formulations were used: 1) Adper Single Bond Plus (SB); 2) SB formulation without VCP (SBnoVCP); 3) Adper Easy Bond (EB); 4) EB fo...
Article
The aim of this study was to evaluate the 6-and 12-month clinical performance of four adhesion strategies from the same manufacturer (Kerr) in non-carious cervical lesions (NCCLs) using two evaluation criteria. Thirty-five patients, with at least four NCCLs each, participated in this study. After sample-size calculation, 180 restorations were assig...
Chapter
The treatment of severely destroyed teeth involves quite often the placement of a fiberglass post into the root canal space as a means of retention for the final restorative procedure. The bonding of fiberglass posts into the root canal is a very challenging task in which several factors may influence the final outcome. This chapter summarizes (1)...
Chapter
This chapter illustrates the step-by-step treatment of two maxillary central incisors restored with fiber posts luted with a self-adhesive cement, followed by composite resin buildups and porcelain-fused-to-zirconia crowns. Two videos will also demonstrate the use of materials and instruments necessary to lute fiber posts in the root canal with adh...
Chapter
The objective of this chapter is to provide different treatment considerations to guide the clinician in the practice of evidence-based dentistry when performing treatment plans for endodontically treated teeth. As some of the existing literature is not clinically relevant, one must understand the limitations of published studies as they apply to c...
Chapter
Teeth prepared for partial or full-coverage restorations must be protected and stabilized with provisional restorations that reproduce the form and function of the final restoration. Provisional treatment may also provide an important tool for the management of patients, as a common perception of the treatment outcome and respective limitations can...
Chapter
The restoration of endodontically treated teeth has been subject of controversy over many years. It was believed that the exclusive function of a post was to provide retention for the coronal restoration. More recent evidence suggests that fiber-reinforced resin posts (or fiber posts) may actually strengthen the root when luted with an adhesive tec...
Article
Purpose: To evaluate the chemical interaction between synthetic hydroxyapatite (HAp) and polyalkenoic acid copolymer (also known as Vitrebond copolymer [VCP])-based adhesives. Materials and Methods: Six dentin adhesive formulations were used: 1) Adper Single Bond Plus (SB); 2) SB formulation without VCP (SBnoVCP); 3) Adper Easy Bond (EB); 4) EB for...
Article
The aim of this study was to quantify tooth sensitivity during bleaching and after a desensitizing treatment. Sensitivity was measured with a new device, TSA-II, which uses thermal stimuli for Quantitative Sensory Testing (QST). Ten patients underwent bleaching treatment using Whiteness HP Maxx (FGM Produtos Odontológicos Ltda) containing 35% hydro...
Book
Full-text available
This book offers a comprehensive and up-to-date overview of the restoration of teeth retained through root canal treatment, from the perspective of adhesive dentistry. The challenge of adhesion to root dentin is first explained and guidance provided on assessment of the restorability of endodontically treated teeth. The types of prefabricated passi...
Conference Paper
Randomized clinical trials with dental adhesives are not very abundant, even considering that clinical studies are the ultimate challenge for any restorative material. Dentists currently rely mostly on laboratory studies, as dental adhesives are still one of the few biomaterials launched without controlled clinical studies. For this reason, publish...
Article
OBJECTIVE To test the influence of a hydrophobic resin coating (HC) on the immediate (24h) and 6-month (6m) microtensile dentin bond strengths (μTBS) and nanoleakage (NL) of three universal adhesives applied in self-etch (SE) or in etch-and-rinse (ER) mode. METHODS Sixty caries-free extracted third molars were assigned to 12 experimental groups res...
Article
Full-text available
Statement of the problem It is still debatable which technique should be used with universal adhesives, either etch-and-rinse (wet or dry) or self-etch strategy (with or without selective enamel etching). To evaluate the 36-month clinical performance of Scotchbond Universal Adhesive (SU, 3M ESPE) in non-carious cervical lesions (NCCLs) using two ev...
Article
Objectives: To investigate the effect of hydrofluoric acid (HF) etching, silane solution, and adhesive system application on the microshear bond strength (μSBS) of lithium disilicate glass-ceramic (LD) to three resin cements. Materials and methods: Circular bonding areas were delimited on the lithium disilicate surfaces using a perforated adhesi...
Article
PurposeTo evaluate the 18-month clinical performance of four adhesive strategies in posterior composite restorations placed in private practice.Materials and Methods Upon approval by an institutional revi