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Orthodontic bond strength

İrem Kurt, Zafer Cavit Çehreli, Ayça Arman Özçırpıcı, Çağla Şar
OBJECTIVES: To determine the best bonding method of orthodontic attachment among monolithic zirconia, feldspathic porcelain, hybrid porcelain, and the impact of surface-conditioning methods using a three-dimensional optical profilometer after debonding. MATERIALS AND METHODS: 56 feldspathic porcelain, 56 monolithic zirconia, and 56 hybrid porcelain samples were divided into four surface treatment subgroups: (1) hydrofluoric (HF) acid etch + silane, (2) Al2 O3 sandblasting + silane, (3) silicoating (SiO2 ), and (4) diamond bur + silane...
March 11, 2019: Angle Orthodontist
Mohammad Moslem Imani, Farzaneh Aghajani, Nafiseh Momeni, Mohammad Sadegh Ahmad Akhoundi
Objectives: In clinical conditions, orthodontic brackets are exposed to periodic stresses mainly induced by mastication and intraoral forces. The objective of the present study was to evaluate the effects of cyclic loading to simulate masticatory forces on shear bond strength (SBS) of metal brackets bonded to teeth using self-etch and total-etch bonding systems. Materials and Methods: Eighty-four caries- and crack-free bovine mandibular incisors were selected and randomly assigned to two groups based on the type of bonding system...
November 2018: Journal of Dentistry of Tehran University of Medical Sciences
Carlos González-Serrano, Eugenia Baena, María-Victoria Fuentes, Alberto Albaladejo, Manuel Míguez-Contreras, Manuel O Lagravère, Laura Ceballos
Background: The aim of this study was to compare the shear bond strength (SBS) of a flash-free and precoated orthodontic adhesive with a compomer orthodontic adhesive before and after thermocycling. The adhesive remnant index (ARI) was also determined for both adhesives. Material and Methods: The adhesive remnant index (ARI) was also determined for both adhesives. Material and Methods: A total of 120 human premolars were randomly divided into two groups (n=60) according to the orthodontic adhesive used: APC Flash-Free Adhesive Coated Appliance System (APC FF) or Transbond PLUS Color Change Adhesive (TP), as control...
February 2019: Journal of Clinical and Experimental Dentistry
Hooman Zarif Najafi, Mina Moradi, Sepideh Torkan
INTRODUCTION: The number of adult patients seeking orthodontic treatment has been consistently increasing. Since the placing of the final restoration must be postponed until the completion of the orthodontic treatment, provisional restoration is recommended for the duration of the orthodontic treatment. These surfaces have special chemical properties, which necessitate the orthodontists to prepare the bonding area with special measures. METHODS: Polycarbonate and polymethylmethacrylate (PMMA) crowns (n=80) were randomly subdivided into 4 groups...
March 2019: International Orthodontics
Carolina Jung Ferreira, Vicente Castelo Branco Leitune, Gabriela de Souza Balbinot, Felipe Weidenbach Degrazia, Marianna Arakelyan, Salvatore Sauro, Fabricio Mezzomo Collares
Orthodontic adhesives with antimicrobial and remineralizing properties may be an alternative to control white spot lesions around brackets. The aim of this study is to develop an experimental orthodontic adhesive containing boron nitride nanotubes (BNNT) and alkyl trimethyl ammonium bromide (ATAB). Methacrylate (BisGMA and TEGDMA) monomers were used to formulate the adhesives. Four experimental groups were produced with the addition of 0.1 wt.% BNNT (GBNNT ); 0.1 wt.% ATAB (GATAB ); and 0.2 wt.% BNNT with ATAB (GBNNT/ATAB ); in the control group, no fillers were added (GCtrl )...
February 21, 2019: Materials
Nisa Gül Amuk, Aslı Baysal, Yakup Üstün, Gökmen Kurt
Purpose: The aim of this study was to test the null hypothesis that no difference exists between shear bond strength values of control and bleaching plus desensitizer applied groups. Materials and methods: A hundred freshly extracted human premolar teeth were randomly divided into five groups. Group I served as the control group with no bleaching application, while only bleaching was achieved in Group II. Desensitizer containing potassium nitrate-fluoride and casein phosphopeptide amorphous calcium phosphate were applied in Groups III and IV, after bleaching respectively...
May 2018: European Oral Research
Hooman Zarif Najafi, Rafaat Bagheri, Hamid Reza Pakshir, Mohammad Amin Tavakkoli, Sepideh Torkan
INTRODUCTION: The aim of this study was to determine the effect of bleaching and desensitizing on shear bond strength (SBS) of metal brackets to enamel. METHODS: One hundred extracted human premolar were randomly assigned to 5 groups of 20. In the first group (control), no bleaching or desensitizing agent was used. Groups 2 to 5 were bleached with 37.5% hydrogen peroxide and desensitized with 6.0% potassium nitrate. Surface treatment comprised of etching for 15seconds in groups 1, 2 and 3, Er:yag laser irradiation and etching in group 4 and sandblasting and etching in group 5...
February 12, 2019: International Orthodontics
Ana Carolina Costa, Vicente Sabóia, Felipe Marçal, Nara Sena, Diego De Paula, Thyciana Ribeiro, Victor Feitosa
The aim of this study was to evaluate the degree of conversion (DC), flexural strength (FS), and shear bond strength (SBS) of ceramic brackets bonded to enamel with experimental self-adhesive orthodontic composites. Functional monomers 10-methacryloyloxy-decyl-dihydrogen-phosphate (MDP) and glycerol-dimethacrylate-phosphate (GDMA-P) were used in experimental composites. They were compared to the same composite without an acidic monomer (negative control) and with enamel acid-etching prior to adhesive application (positive control)...
January 30, 2019: Materials
Lilian Nascimento Carlos, Olivia Santana Jorge, Luiz Renato Paranhos, Sergio Augusto de Freitas Vincenti, Fernanda de Carvalho Panzeri Pires-de-Souza
Objective: The aim of the present study was to compare the shear bond strength (SBS) of orthodontic brackets bonded to the enamel after at-home and in-office bleaching treatments. Methods: Sixty bovine incisors were subjected to initial color readings and then classified into three groups: CP (16% carbamide peroxide), HP (35% hydrogen peroxide), and C (control). After treatments, new color readout was obtained, and orthodontic brackets were bonded to the bleached area...
December 2018: Turkish Journal of Orthodontics
Catielma Nascimento Santos, Felipe de Souza Matos, Sigmar de Mello Rode, Paulo Francisco Cesar, Flávia Pardo Salata Nahsan, Luiz Renato Paranhos
OBJECTIVE: To assess the short-term effect of two in vitro erosive challenge protocols on the bond strength of metal orthodontic brackets on bovine enamel. METHODS: Sixty bovine incisors were selected and randomly divided into six groups: AS7 (artificial saliva - 7 days, Control Group); CC7 (Coca-Cola™ - 7 days); LJ7 (lime juice - 7 days); AS30 (artificial saliva - 30 days, Control Group); CC30 (Coca-Cola™ - 30 days); LJ30 (lime juice - 30 days). Microhardness testing was performed prior to the erosive challenge to verify the standardization of samples...
November 2018: Dental Press Journal of Orthodontics
Katie J Camacho, Jeryl D English, Helder B Jacob, Lacey M Harris, F Kurtis Kasper, Harry I Bussa, Ryan L Quock
PURPOSE: To evaluate if pre-treatment with silver diamine fluoride (SDF) adversely affects the bond strength of orthodontic brackets to enamel. METHODS: 30 extracted non-carious permanent molar teeth were embedded in acrylic resin cylinders with buccal surfaces exposed and randomly divided equally into two groups. The experimental enamel surfaces were treated with 38% SDF applied for 1 minute between phosphoric acid etch and metal orthodontic bracket bonding with Transbond XT Light Cure Adhesive...
December 2018: American Journal of Dentistry
Erum Khan, Ibrahim Alshahrani, Muhammad Abdullah Kamran, Abdulaziz Samran, Ali Alqerban, Saad Abdul Rehman
AIM: The aim of the present in-vitro study was to explore bleached enamel reversal with phototherapy (Er,Cr:YSGG) when using two dissimilar bonding system to bond brackets on microleakage and shear bond strength. MATERIAL AND METHODS: Amongst one twenty samples, ninety samples were bleached using 35% hydrogen peroxide. After the bleaching procedure, the teeth were randomly divided into three groups according to surface conditioning treatment (n = 30 each). Group 1: treated with Er,Cr:YSGG (ECL) Group 2: 10% sodium ascorbate (SA) and Group 3: Bleached only (BO)...
January 12, 2019: Photodiagnosis and Photodynamic Therapy
Abeer Abdullah Alrafaa, Rabia Bilal, Ibrahim Alshahrani
OBJECTIVE: To determine the shear bond strength of orthodontic brackets after anti-oxidant treatment on previously bleached teeth.. METHODS: The experimental in-vitro study was conducted in Saudi Arabiaat Qassim University, Al-Qassim, and King Saud University, Riyadh, from December 2016 to March 2017, and comprised extracted maxillary and mandibular premolars which were divided randomly into three groups. In Group A, which was the control group, the teeth were etched and bonded, while those in Group B were bleached, etched and bonded...
January 2019: JPMA. the Journal of the Pakistan Medical Association
Maryam Pourhajibagher, Abbas Salehi Vaziri, Nasrin Takzaree, Roghayeh Ghorbanzadeh
BACKGROUND: Potential complications on the crown level during fixed orthodontic procedures are white spot, enamel demineralization and the tooth decay. This study evaluated the antimicrobial properties of an orthodontic adhesive incorporating cationic curcumin doped zinc oxide nanoparticles (cCur/ZnONPs), which can have the highest concentration of cCur/ZnONPs and shear bond strength (SBS) value simultaneously, on the against cariogenic bacteria including Streptococcus mutans, Streptococcus sobrinus, and Lactobacillus acidophilus...
January 3, 2019: Photodiagnosis and Photodynamic Therapy
Kevin M Andrews, Glen Roberson, Karthikeyan Subramani, Kishore Chaudhry
Background: The purpose of this study is to determine if the duration of exposure to the halogen overhead dental chair light has an effect on shear bond strength (SBS) of metal orthodontic brackets. Material and Methods: One hundred twenty extracted human lower incisor teeth were divided into six groups (n=20/group). Each group was assigned a predetermined duration of exposure to the halogen dental chair light, set at a fixed distance, before being cured. Light exposure times of 0 minutes (Group 1-Control), 1 minute (Group 2), 2...
November 2018: Journal of Clinical and Experimental Dentistry
Taha Mohammed Masood, Mona Aly Abbassy, Ahmed Samir Bakry, Naof Yessen Matar, Ali Habib Hassan
Objective: The objectives of this study were to evaluate the degree of conversion (DC) for Transbond XT curing light of intensity 1,600 mW/cm2 by using variable curing durations and to determine the effect of the tested curing durations adopted in the current experiment on shear bond strength of Transbond XT resin cement. Materials and methods: A total of 85 orthodontic ceramic brackets (Victory series; 3M Unitek) were utilized in the current experiment. The bonding system used in the current study was Transbond XT Primer followed by Transbond PLUS Color Change Adhesive (3M Unitek) that cured for 3, 6, and 9 seconds...
2018: Clinical, Cosmetic and Investigational Dentistry
Jamal Y Amer, Mohammad M Rayyan
OBJECTIVE: To evaluate the effect of different surface treatments and bonding modalities on the shear bond strength (SBS) between metallic orthodontic brackets and zirconia crowns. MATERIALS AND METHODS: Sixty zirconia specimens were computer-aided design/computer-aided manufacturing milled, sintered, glazed, and embedded in acrylic resin. The specimens were divided into three groups according to the surface treatment applied: C: no surface treatment (control), S: sandblasted with 50 μm Al2 O3 , and D: Sof-Lex disc roughening...
2018: Journal of Orthodontic Science
Jun-Sik Kim, Jae-Pyeong Ahn, Yang-Hee Kim, Kyung Won Seo, Homayoun Zadeh, Seong-Hun Kim
OBJECTIVES: To evaluate nanoscale molecular interactions in the interface between human bone and orthodontic titanium implants. MATERIALS AND METHODS: An orthodontic implant (sandblasted with large grit and with an acid-etched surface treated with Ti6A14V alloy) retrieved from the mandible of human after 2 months of healing was used to analyze the molecular interactive mechanism between the implant and the surrounding bone tissue. To preserve the natural state of the sample as much as possible, cryofixation and scanning electron microscope/focused ion beam milling without any chemical treatment were used during sample preparation...
November 28, 2018: Angle Orthodontist
Guneet Guram, Junaid Ahmed Shaik
Aims and Objectives: Conventionally, composites are cured using halogen-based light-curing units (LCUs). However, recently, light-emitting diode (LED) LCUs have been introduced commercially, claiming many advantages, yet producing comparable bond strength even when cured with single LED LCUs. This present study was undertaken to compare the shear bond strength of orthodontic brackets bonded to teeth with conventional halogen LCU (3M ESPE Elipar 2500) and LED LCU (3M ESPE Elipar FreeLight 2) and to determine the site of bond failure...
September 2018: Journal of International Society of Preventive & Community Dentistry
Ananto Ali Alhasyimi, Pinandi Sri Pudyani, Ikmal Hafizi
INTRODUCTION: The number of patients who seek orthodontic treatment that may have a history of tooth bleaching is increasing over the time. Bleaching may influence the decrease of the bond strength of orthodontic brackets. OBJECTIVE: To determine and prove the effect of mangosteen peel (MP) extract to reverse the reduced shear bond strength (SBS) of orthodontic brackets after bleaching. METHODS: A total of 150 maxillary first premolar teeth were randomly divided into 6 experimental groups as follow (n=25): negative-control (N: no bleaching), positive-control (P: bleaching + no treatment), and the treatment groups (bleaching + 10% sodium ascorbate (SA), 10% (MP-10), 20% (MP-20) and 40% (MP-40) MP extract gel)...
September 2018: Dental Press Journal of Orthodontics
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