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https://www.readbyqxmd.com/read/27901225/external-cervical-resorption-diagnostic-and-treatment-tips
#1
Alberto Consolaro
External cervical resorption is caused, almost exclusively, by dental trauma - especially those characterized by concussion - and is a dental disease to be diagnosed and treated accurately by endodontists. However, the vast majority of the cases is initially diagnosed by an orthodontist, due to the imaging possibilities in standardized documentations. Among the causes of external cervical resorption, it is common to mistakenly attribute it to orthodontic treatment, traumatic occlusion or even to chronic inflammatory periodontal disease...
September 2016: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/27891467/an-in-vitro-comparative-study-of-shear-bond-strength-of-composite-resin-to-bleached-enamel-using-three-herbal-antioxidants
#2
Pratap Kumar Mukka, Nanda Kumar Komineni, Sambashivarao Pola, E Soujanya, Anand Ramtheerth Karne, Bhasker Nenavath, Sandeep Shiva, Pallavi Vuppunuthula
INTRODUCTION: If adhesive restorations are carried out imme-diately, the Shear Bond Strength (SBS) to bleached enamel is reduced. The use of antioxidants can be highlighted since it seems to be a more effective alternative to reduce or remove the residual oxygen and immediate improvement in SBS. AIM: The purpose of this in-vitro study was an attempt to regain the lost bond strength, for which, the comparison of SBS of composite resin to bleached enamel was carried out using various antioxidants i...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27811449/bond-strength-of-resin-composite-to-light-activated-bleached-enamel
#3
T Yavuz, O Y Ozyilmaz, A N Ozturk, F Aykent
OBJECTIVES: This study evaluated the microtensile bond strength (μTBS) of a resin composite bonded to bleached enamel as a function of bleaching conditions. MATERIALS AND METHODS: The whiteness hydrogen peroxide (HP) bleaching agent containing 35% HP was applied to the central incisors' facial enamel surface and irradiated as follows: No treatment (G1; control); no light (G2); light-emitting diode, the 40s (G3); diode laser, the 20s (G4); and neodymium:yttrium aluminum garnet laser, 20s (G5)...
November 2016: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/27793705/is-resin-infiltration-an-effective-esthetic-treatment-for-enamel-development-defects-and-white-spot-lesions-a-systematic-review
#4
REVIEW
A B Borges, T M F Caneppele, D Masterson, L C Maia
OBJECTIVES: To determine if resin infiltration is an effective treatment for improving the esthetic appearance of tooth discoloration resulting from development defects of enamel (EDD) and white spot lesions (WSL) by means of a systematic review. DATA SOURCES: A comprehensive search was performed in PubMed, Scopus, Web of Science, LILACS, BBO Library, Cochrane Library, and SIGLE, as well as in the abstracts of IADR conference, and in the clinical trials registry...
October 25, 2016: Journal of Dentistry
https://www.readbyqxmd.com/read/27792268/in-office-bleaching-during-orthodontic-treatment
#5
Mauricio Neves Gomes, Hélio Dutra, Alexandre Morais, Ricardo Sgura, André Guaraci Devito-Moraes
OBJECTIVE: To demonstrate that it is possible to pursue teeth whitening treatment protocols during orthodontic treatment with no esthetic loss. CLINICAL CONSIDERATIONS: Many patients undergoing orthodontic treatment desire to have a straight and well aligned dentition, but also whiter teeth. For many years, it was believed that carrying out a whitening treatment with positioned orthodontic brackets in place would result in localized spots on the enamel labial surfaces of teeth...
October 28, 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/27747220/resin-bonding-of-self-etch-adhesives-to-bovine-dentin-bleached-from-pulp-chamber
#6
Akiko Haruyama, Atsushi Kameyama, Junji Kato, Shinji Takemoto, Yutaka Oda, Eiji Kawada, Toshiyuki Takahashi, Masahiro Furusawa
This study evaluated the microtensile bond strength (μTBS) of 1-step self-etch adhesives (1-SEAs) and 2-step self-etch adhesives (2-SEAs) to pulp chamber dentin immediately after bleaching with 2 types of common bleaching techniques. Pulp chamber dentin of bovine teeth was bleached using 30% hydrogen peroxide (H2O2) solution with quartz-tungsten-halogen light-curing unit (Group 1) and 3.5% H2O2-containing titanium dioxide (TiO2) (Pyrenees®) activated with 405-nm violet diode laser for 15 min (Group 2). Unbleached specimens were placed in distilled water for 15 min and used as controls...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27669724/invasive-cervical-resorption-following-orthodontic-treatment-two-cases-involving-the-same-patient
#7
Margarita Yoshpe, Arieh Kaufman, Shaul Lin, Eran Gabay, Shmuel Einy
: Invasive cervical resorption (ICR), a destructive form of external root resorption, is characterized by invasion of the fibrovascular tissue. This phenomenon is very rare and appears in 0.02% of the general population where the leading factors are orthodontics in addition to trauma, restorations, and bleaching. Heavy orthodontic force may increase the incidence to 1%. One of the main concerns regarding ICR is that it is often misdiagnosed with conventional diagnostic tools. In recent decades, a cone beam computed tomography (CBCT) imaging technique has become more common and can lead to a more accurate diagnosis and treatment plan...
September 26, 2016: Quintessence International
https://www.readbyqxmd.com/read/27668099/esthetic-rehabilitation-through-crown-lengthening-surgery-and-conservative-cad-cam-veneers-a-multidisciplinary-case-report
#8
Leandro Passos, Fernando Peixoto Soares, Mauricio Gallo
This case report describes a successful multidisciplinary approach used to improve the smile esthetics of a patient presenting with excessive gingival display, asymmetric gingival margins, and small upper anterior teeth and lower anterior teeth. The treatment combined esthetic crown lengthening, dental bleaching, and restorative dentistry using CAD/CAM veneer. The 6-month follow-up examination confirmed the stability of the modification and absence of adverse effects.
2016: Case Reports in Dentistry
https://www.readbyqxmd.com/read/27649457/an-in-situ-study-of-the-influence-of-staining-beverages-on-color-alteration-of-bleached-teeth
#9
A L Briso, T C Fagundes, M O Gallinari, J Moreira, Lcag de Almeida, V Rahal, R S Gonçalves, Ph Dos Santos
The aim of this study was to evaluate overall color change in bovine tooth fragments submitted to dental bleaching treatment performed simultaneously with the ingestion of beverages containing dyes. For this purpose, tooth fragments assembled into intraoral devices were submitted to at-home dental bleaching using 10% carbamide peroxide (CP) for 14 days and to immersion in staining beverages for 10 minutes daily. The specimens were divided into the following study groups according to bleaching treatment and staining substance (n=12): G I (negative control): no bleaching + distilled water; G II (positive control): bleaching + distilled water; G III: bleaching + coffee; and G IV: bleaching + grape juice...
November 2016: Operative Dentistry
https://www.readbyqxmd.com/read/27649456/clinical-evaluation-of-genotoxicity-of-in-office-bleaching
#10
M Rezende, J L De Geus, A D Loguercio, A Reis, D Kossatz
OBJECTIVE: The aim of this study was to evaluate the genotoxicity of in-office bleaching with 35% hydrogen peroxide in epithelial cells from the gingival and lip tissues. METHODS AND MATERIALS: Thirty volunteers with central incisors shade A1 or darker were selected for this study. The gingival tissue of the teeth to be bleached was isolated with a light-polymerized resin dam, and the 35% hydrogen peroxide gel was administered during three 15-minute applications over the course of the 45-minute application period...
September 20, 2016: Operative Dentistry
https://www.readbyqxmd.com/read/27614116/the-effect-of-dental-bleaching-on-pulpal-tissue-response-in-a-diabetic-animal-model
#11
L T A Cintra, L L Ferreira, F Benetti, A A Gastélum, J E Gomes-Filho, E Ervolino, A L F Briso
AIM: To evaluate pulpal tissue response after dental bleaching in normal and alloxan-induced diabetic rats. METHODOLOGY: Twenty-eight rats were divided into two groups of normoglycaemic and diabetic rats (n = 14). Diabetes mellitus (DM) was induced with alloxan. After DM confirmation, all rats were anaesthetized and dental bleaching was performed with 35% hydrogen peroxide (H2 O2 ) on the right maxillary molars for 30 min. Left molars were used as controls. Bleaching resulted in four hemimaxillae groups: normoglycaemic (N), N-bleached (NBle), diabetic (D) and D-bleached (DBle)...
September 10, 2016: International Endodontic Journal
https://www.readbyqxmd.com/read/27571237/longevity-esthetic-perception-and-psychosocial-impact-of-teeth-bleaching-by-low-6-hydrogen-peroxide-concentration-for-in-office-treatment-a-randomized-clinical-trial
#12
E Fernández, C Bersezio, J Bottner, F Avalos, I Godoy, D Inda, P Vildósola, Jrc Saad, O B Oliveira, J Martín
OBJECTIVE: The aim was to evaluate the color longevity after nine months of in-office bleaching with gel (6% hydrogen peroxide), to compare this to a control concentration of 35% in a split-mouth study model, and to assess the dental confidence and psychosocial impact on patients. METHODS AND MATERIALS: Twenty-seven patients were assessed at the nine-month recall. The bleaching procedure with 6% or 35% hydrogen peroxide gel was performed randomly in the upper hemi-arch of each patient...
August 29, 2016: Operative Dentistry
https://www.readbyqxmd.com/read/27530080/evaluating-a-cobalt-tetraphenylporphyrin-complex-functionalized-with-a-reduced-graphene-oxide-nanocomposite-for-improved-tooth-whitening
#13
I-Hsuan Su, Chen-Fu Lee, Yu-Pin Su, Lai-Hao Wang
OBJECTIVES: To study using cobalt-tetraphenylporphyrin/reduced graphene oxide (CoTPP/RGO), a nanocomposite highly catalytic both for oxidizing and for reducing hydrogen peroxide (H2 O2 ), to whiten teeth. METHODS: Dyes (D&C Red 34, Orange No. 4), tea, and betel nuts (Areca catechu) were used to stain the tooth specimens for three days and subsequently bleached using H2 O2 alone, H2 O2 plus CoTPP, or H2 O2 plus CoTPP/RGO for 0.5-70 hours. The process was photographed using an electronic chromometer and a camera...
September 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/27506134/on-the-permanence-of-tooth-bleaching
#14
Yacoub Al-Tarakemah, Brian W Darvell
OBJECTIVE: Bleaching (alias whitening) is increasingly the chosen means of modifying the appearance of teeth for cosmetic reasons. Behbehani et al. (2012) acquired the largest known data set for the effects of bleaching over time (300 patients for ∼1year), but the analysis then was rather superficial and did not exploit the full depth of information available in it. METHODS: Data collected by Behbehani et al. (2012) were re-analysed to explore in detail the variation in outcome between patients and over time...
October 2016: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/27505989/potential-of-desensitizing-toothpastes-to-reduce-the-hydrogen-peroxide-diffusion-in-teeth-with-cervical-lesions
#15
Andrés Dávila-Sánchez, Andrés Fernando Montenegro, Arana-Gordillo Alfonso, Paulo Vitor Farago, Alessandro D Loguercio, Alessandra Reis
PURPOSE: To evaluate the occlusive potential of four toothpastes by atomic force microscopy (AFM) before and after bleaching and quantify the hydrogen peroxide (HP) diffusion into the pulp chamber after application of desensitizing toothpastes in teeth with cervical lesions. METHODS: In 52 human extracted premolars, 2-mm deep artificial cervical lesions (ACL) were prepared and rinsed with EDTA for 10 seconds. Then teeth were adapted in a brushing machine and brushed with one of the following toothpastes [Regular toothpaste with no occlusive compounds Colgate Cavity Protection (CP), Oral-B Pro Health (OB), Colgate ProRelief (PR) and Sensodyne Rapid Relief (RR)] under constant loading (250 g; 4...
June 2016: American Journal of Dentistry
https://www.readbyqxmd.com/read/27498085/effects-of-combining-ozone-and-hydrogren-peroxide-on-tooth-bleaching-a-clinical-study
#16
Mahmoud K Al-Omiri, Ra'ed S Abul Hassan, Bader K AlZarea, Edward Lynch
OBJECTIVES: The purpose of this study was to evaluate the efficiency of bleaching after combining ozone and 38% H2O2 in comparison to the sole use of 38% H2O2. METHODS: Consecutive 26 participants (13 males and 13 females) were recruited into this study. They were randomly allocated into 2 groups (n=13 for each group). In group 1 (test group); the participants' upper anterior teeth were treated with 38% H2O2 for 20min then the teeth were exposed to ozone for 60s (healOzone(®) X4, KaVo Dental, Biberach, Germany)...
October 2016: Journal of Dentistry
https://www.readbyqxmd.com/read/27433554/hydrogen-peroxide-diffusion-with-and-without-light-activation
#17
Carmen Llena, Leopoldo Forner, María Vazquez
OBJECTIVE: The aim of this study was to assess the dental bleaching efficacy of 37.5% hydrogen peroxide (HP), with and without light activation, in HP-exposed and unexposed areas. METHOD: 28 bovine teeth were selected and divided into two groups (n = 14). Crowns were detached and stained with tea. The gingival half was covered with a gingival barrier. In the incisal half, 37.5% HP (Pola Office+, SDI) was applied three times, with a 1-week interval between applications...
2016: International Journal of Esthetic Dentistry
https://www.readbyqxmd.com/read/27416154/penetration-of-hypochlorites-with-lowered-surface-tension-into-dentine-tubules
#18
Flavio Palazzi, Gennaro Sadile, Zahed Mohammadi, Massimo Del Fabbro, Francesco Riccitiello
BACKGROUND: The purpose of the present study was to assess the effect of concentration and temperature of sodium hypochlorite (NaOCl) with added surfactants and time of exposure on its penetration into human dentine. METHODS: Seventy-five extracted permanent maxillary anterior teeth with single canals were shaped by using ProTaper SX hand-operated instruments. Then teeth were sectioned perpendicular to their long axis. The crowns and apical thirds of all the teeth were removed...
July 14, 2016: Minerva Stomatologica
https://www.readbyqxmd.com/read/27386010/clinical-and-spectrophotometric-evaluation-of-led-and-laser-activated-teeth-bleaching
#19
R Lo Giudice, G Pantaleo, A Lizio, U Romeo, G Castiello, G Spagnuolo, G Lo Giudice
BACKGROUND: Auxiliary power sources (LED and laser) are used in in-office teeth bleaching techniques to accelerate the redox reaction of the whitening gel to increase ease of use, to improve comfort and safety, and to decrease the procedure time. OBJECTIVE: The aim this study is to evaluate the efficiency of the teeth whitening procedures performed with hydrogen peroxide and carbamide peroxide, LED or Laser activated. METHOD: 18 patients, affected by exogenous dyschromia, were treated with a bleaching agent composed by 35% hydrogen peroxide and 10% carbamide peroxide...
2016: Open Dentistry Journal
https://www.readbyqxmd.com/read/27385998/effect-of-co2-nd-yag-and-er-yag-lasers-on-microtensile-bond-strength-of-composite-to-bleached-enamel
#20
Mahshid Mohammadi Basir, Mohammad Bagher Rezvani, Nasim Chiniforush, Zohreh Moradi
BACKGROUND: Tooth restoration immediately after bleaching is challenging due to the potential problems in achieving adequate bond strength. OBJECTIVE: The aim of this study was to evaluate the effect of surface treatment with ER:YAG, ND:YAG, CO2 lasers and 10% sodium ascorbate solution on immediate microtensile bond strength of composite resin to recently bleached enamel. MATERIALS & METHODS: Ninety sound molar teeth were randomly divided into three main groups (n:30) : NB (without bleaching), HB (bleached with 38% carbamide peroxide) and OB (bleached with Heydent bleaching gel assisted by diode laser)...
2016: Open Dentistry Journal
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