March/April 2016

Paulo Antônio Martins-Júnior, DDS, MSc, PhD
Suzane Paixão-Gonçalves, DDS, MSc
Maria Letícia Ramos-Jorge, DDS, MSc, PhD
Leandro Silva Marques, DDS, MSc, PhD
2016 Mar/Apr; 64(2):9-12.

A 9-year-old patient with chronic pancreatic insufficiency, which can produce changes in craniofacial growth and development, was treated for posterior crossbite and anterior open bite. The dentition relapsed posttreatment, confirming the difficulty of promoting ossification in the median palatine suture.

Hellen de Lacerda Oliveira, DDS, MSc
Tamara Kerber Tedesco, DDS, MSc, PhD
Leonardo Eloy Rodrigues-Filho, DDS, MDSc, PhD
Fabio Zovico Maxnuck Soares, DDS, PhD
Rachel de Oliveira Rocha, DDS, MDSc, PhD
2016 Mar/Apr; 64(2):14-17.  

A study evaluating the pH effect of acidic or neutral doxycycline solutions on the immediate dentin bond strength of a total-etch adhesive system found that the application of doxycycline did not influence bond strength.

Flavia Nahsan, DDS, MSc, PhD
Linda Wang, DDS, MSc, PhD
Karin Modena, DDS, PhD
Luciana Francisconi-dos-Rios, DDS, MSc, PhD
Luciana da Silva, DDS, MSc, PhD
Marcela Calabria, DDS, MSc, PhD
Leslie Casas-Apayco, DDS, MSc, PhD
Rafael Francisco Lia Mondelli, DDS, MSc, PhD
2016 Mar/Apr; 64(2):18-20.  

A split-mouth, double-blind trial evaluated the effects of a surface sealant on the clinical performance of Class I composite resin restorations. Evaluations of marginal integrity, marginal discoloration, anatomical form, and secondary caries at 12 months revealed that the sealant did not improve clinical performance of the restorations.

Diego Tetzner Fernandes, DDS
Débora Lima Pereira, DDS 
Alan Roger Santos-Silva, DDS, PhD
Pablo Agustin Vargas, DDS, PhD
Márcio Ajudarte Lopes, DDS, PhD
2016 Mar/Apr; 64(2):21-25. 

Florid osseous dysplasia (FOD) usually presents as multiple radiopaque masses throughout the jaws. This article describes the characteristics of FOD over 22 years of follow-up.

Ana Paula Piovezan Fugolin, DDS, MDS, PhD
Lourenço Correr-Sobrinho, DDS, MDS, PhD
Américo Bortolazzo Correr, DDS, MDS, PhD
Mário Alexandre Coelho Sinhoreti, DDS, MDS, PhD
Ricardo Danil Guiraldo, DDS, MDS, PhD
Simonides Consani, DDS, MDS, PhD
2016 Mar/Apr; 64(2):26-31

The influence of irradiance on microhardness, degree of conversion (DC), and polymerization shrinkage on nanofilled and microhybrid composite resins was investigated. After light curing, nanofilled specimens showed greater hardness than did microhybrid specimens. The DC of the microhybrid composite was greater than that of the nanofilled material. Irradiance did not influence polymerization shrinkage.

Evisabel Siqueira Simões Teixeira, DDS, MSc
Fabio Antonio Piola Rizzante, DDS, MSc
Sérgio Kiyoshi Ishikiriama, DDS, MSc, PhD
José Mondelli, DDS, MSc, PhD
Adilson Yoshio Furuse, DDS, MSc, PhD
Rafael Francisco Lia Mondelli, DDS, MSc, PhD
Juliana Fraga Soares Bombonatti, DDS, MSc, PhD
2016 Mar/Apr; 64(2):32-36.  

The loss of tooth structure from maxillary and mandibular molars after cavity preparation was evaluated. Class II mesio-occlusodistal cavities for both indirect and direct restorations were prepared to one-half, one-third, or one-quarter the buccolingual interocclusal distance. Fracture resistance was lower and weight loss was greater in all indirect preparations.

Nicole V. Hinchy, DDS, MS
Vijayvel Jayaprakash, MBBS, PhD
Nestor Rigual, MD
Mary Reid, PhD
Jennifer L. Frustino, DDS, PhD
Rachael Rossitto, DDS
Adrienne Groman, MS
Maureen A. Sullivan, DDS
2016 Mar/Apr; 64(2):38-43.  

Early presentation of gingival squamous cell carcinoma (GSCC) is at times misdiagnosed. Records of 32 GSCC patients who underwent an invasive dental procedure (IDP) before cancer diagnosis were compared to those of 26 GSCC patients who did not. Disease-specific mortality was comparable; however, surgical treatment was more extensive in the IDP group.

Deborah Solomon, DDS
Ralph V. Katz, DDS
Anneke C. Bush, ScD, MHS
Victoria K. Farley, DDS
Trevor J. McGerr, DDS
Hoon Min, DMD
Anthony M. Carbonella, DMD
Joseph D. Kayne, DDS
2016 Mar/Apr; 64(2):44-50. 

Subjects were assessed and given a questionnaire to measure their self-perception of variables related to dental esthetics, including the Psychosocial Impact of Dental Aesthetics Questionnaire (PIDAQ). High PIDAQ scores indicate a negative self-image. Subjects with higher PIDAQ scores tended to have higher levels of caries and gingival inflammation.

Abdolreza Jamilian, DDS, MS
Alireza Darnahal, DDS
Roya Hamedi, DDS, MS
Zinat Kamali, MS
Shabnam Toopchi, DDS
2016 Mar/Apr; 64(2):52-55.  

The purpose of this study was to establish norms of photogrammetric soft tissue profile analysis for Persian adults. Statistically significant sexual dimorphism was found for the nasofrontal, nasal, nasal dorsum, cervicomental, facial convexity, and total facial convexity angles.

Denise Tornavoi de Castro, DDS
César Penazzo Lepri, PhD
Mariana Lima da Costa Valente, DDS
Andréa Cândido dos Reis, PhD
2016 Mar/Apr; 64(2):56-59.

When a silorane-based composite resin was compared to conventional composite resins before and after accelerated artificial aging, the compressive strength of the silorane-based composite was among the lowest obtained, both before and after aging. The aging process did not influence compressive strength.

Douglas Machado Bezerra-Júnior
Luciana Mendonça Silva, PhD
Leandro de Moura Martins, PhD
Flávia Cohen-Carneiro, PhD
Danielson Guedes Pontes, PhD
2016 Mar/Apr; 64(2):60-64.

A combination of dental bleaching techniques, enamel microabrasion, and resin restorations was a successful and conservative choice for reestablishing the natural appearance of discolored teeth in a 26-year-old man.

Igor Henrique Silva, DDS, PhD
Samantha Cardoso, DDS, MSc
Camila Nunes Carvalho, DDS, MSc
Alessandra de Albuquerque Tavares Carvalho, DDS, PhD
Jair Carneiro Leão, DDS, PhD
Luiz Alcino Gueiros, DDS, PhD
2016 Mar/Apr; 64(2):65-67.  

Oral mucoceles, characterized by accumulation of mucus following rupture of a minor salivary gland duct, are common, but congenital mucoceles are rare. This case report describes a congenital mucocele of the lower lip in a 3-month-old infant.

Jon Peter Vandewalker, DDS, MS
Jeffery A. Casey, DDS
Todd A. Lincoln, DDS, MS
Kraig S. Vandewalle, DDS, MS
2016 Mar/Apr; 64(2):68-73. 

The properties of 2 new dual-cure, bulk-fill restorative composites were compared to those of a hybrid composite. Compared to the hybrid composite, the dual-cure composites had unlimited depth of cure, similar fracture toughness and porosity formation, and greater polymerization shrinkage and microleakage.

Wayne W. Maibaum, MA, DMD, FAGD
2016 Mar/Apr; 64(2):e1-e4.  

A creative, minimally invasive approach enabled a patient who lost a critical abutment tooth to keep his existing removable partial overdenture and avoid the need for a full reconstruction or complete denture.

Amanda Maria de Oliveira Dal Piva, DDS
Fernanda Campos, DDS, MSc
Maria Luiza Lima Alves, DDS
Rafael Santiago Sousa, DDS
Júlia Magalhães da Costa Lima, DDS, MSc, PhD
Rodrigo Othávio Assunção Souza, DDS, MSc, PhD
2016 Mar/Apr; 64(2):e5-e8.  

This study on 60 bovine teeth evaluated the influence of alveolar bone level and type of cement on pull-out bond strength between fiber-reinforced composite posts and root dentin. Neither alveolar bone level nor type of cement had an effect on the pull-out bond strength.

Carlos Henrique Ribeiro Camargo, DDS, PhD
Flávia Martins Leal, DDS, MSc
Gleyce Oliveira Silva, DDS, MSc, PhD
Tatiana Rocha de Oliveira, DDS, MSc
Paloma Grasso Madureira, DDS
Samira Esteves Afonso Camargo, DDS, MSc, PhD
2016 Mar/Apr; 64(2):e9-e12.  

In a study evaluating the efficacy of different techniques for removal of combined calcium hydroxide [Ca(OH)2] and chlorhexidine paste from root canals, remnants of Ca(OH)2 were found in all experimental groups, regardless of the removal technique used. Overall, the NaviTip FX irrigation needle technique was more efficient in removing Ca(OH)2.

M. Jacinta M.C. Santos, DDS, MSc, PhD
Heleine Maria Chagas Rêgo, DDS, MSc
Anuradha Mukhopadhyay, DDS
Mai El Najjar, DDS
Gildo C. Santos, Jr, DDS, MSc, PhD
2016 Mar/Apr; 64(2):e13-e17. 

Microhardness and surface roughness of resin-modified glass ionomers (RMGIs) and a composite resin (CR) with or without sealant were assessed before and after aging. After aging of unsealed specimens, roughness values were significantly higher in RMGIs but not CR. Sealant groups showed increased roughness after aging.

Simone Helena Ferreira Gonçalves, DDS, PhD
Rafaela Andrade de Vasconcelos, DDS, MSc
Bruno das Neves Cavalcanti, DDS, PhD
Carlos Henrique Ribeiro Camargo, DDS, PhD
2016 Mar/Apr; 64(2):e18-e21. 

After many unsuccessful attempts to resolve an endodontic infection in a maxillary canine, a microbial culture of the root canal detected the presence of Staphylococcus epidermidis. An antibiogram determined the best drug combination to control the infection.

Lauana Borges Pedroso, DDS
Luma Franciélle Cabreira Barreto, DDS
Leonardo Lamberti Miotti, DDS, MS
Gabriel Ferreira Nicoloso, DDS
Leticia Brandão Durand, DDS, MS, PhD
2016 Mar/Apr; 64(2):e22-e25.  

The influence of sealant on the color stability of nanofilled (NF) and microhybrid (MH) composite resins was evaluated in vitro. Sealant improved the color stability of specimens immersed in coffee. Unsealed MH specimens had better color stability than unsealed NF specimens.