Explorations in LEXT image and profile capture for dental enamel surface morphology

2016 ◽  
Vol 10 ◽  
pp. 454-463 ◽  
Author(s):  
Julia A. Gamble ◽  
S. Brooke Milne
Keyword(s):  
Surface Morphology ◽  
Dental Enamel ◽  
Enamel Surface

Effects of 445-nm Diode Laser-Assisted Debonding of Metallic Brackets on Shear Bond Strength and Enamel Surface Morphology

2020 ◽  
Vol 38 (3) ◽  
pp. 160-166 ◽  
Author(s):  
Thomas Knaup ◽  
Heike Korbmacher-Steiner ◽  
Andreas Braun ◽  
Johannes-Simon Wenzler ◽  
Isabel Knaup ◽  
...  
Keyword(s):  
Surface Morphology ◽  
Bond Strength ◽  
Diode Laser ◽  
Shear Bond Strength ◽  
Enamel Surface

Violet led bleaching: Efficacy and enamel surface morphology analysis

2018 ◽  
Vol 34 ◽  
pp. e26
Author(s):  
M. Kury ◽  
B. Rezende ◽  
B.C. Mendonça ◽  
E.F. De Castro ◽  
F.A. Rueggeberg ◽  
...  
Keyword(s):  
Surface Morphology ◽  
Enamel Surface ◽  
Morphology Analysis

Case Reports of Enamel Microabrasion Associated with At-home Dental Bleaching After Orthodontic Bracket Removal

2021 ◽  
Author(s):  
CC Pavani ◽  
LR Vieira ◽  
TC Schott ◽  
D Sundfeld ◽  
NIP Pini ◽  
...  
Keyword(s):  
Surface Morphology ◽  
Clinical Case ◽  
Case Reports ◽  
Enamel Surface ◽  
Carbamide Peroxide ◽  
Orthodontic Bracket ◽  
Dental Bleaching ◽  
Bonded Materials ◽  
Diamond Bur ◽  
At Home

SUMMARY Adequate removal of residual bonded materials from the enamel surface after orthodontic bracket debonding is critical, since any remaining composite may compromise enamel surface morphology and esthetics. The following clinical case reports present the association of at-home dental bleaching using 10% carbamide peroxide and the removal of residual bonded material using a super fine, tapered diamond bur followed by the use of an enamel microabrasion product after orthodontic bracket debonding. The proposed treatment considerably improved the esthetics and successfully removed the grooves created during the removal of the bonding composite, resulting in a smooth enamel surface.

scholarly journals Effects of CO2laser irradiation on matrix-rich biofilm development formation–an in vitro study

PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e2458 ◽  
Author(s):  
Bruna Raquel Zancopé ◽  
Vanessa B. Dainezi ◽  
Marinês Nobre-dos-Santos ◽  
Sillas Duarte ◽  
Vanessa Pardi ◽  
...  
Keyword(s):  
Contact Angle ◽  
Biofilm Formation ◽  
Dental Enamel ◽  
In Vitro Study ◽  
Dry Weight ◽  
Vitro Study ◽  
Enamel Surface ◽  
Control Group ◽  
Biofilm Development

BackgroundA carbon dioxide (CO2) laser has been used to morphologically and chemically modify the dental enamel surface as well as to make it more resistant to demineralization. Despite a variety of experiments demonstrating the inhibitory effect of a CO2laser in reduce enamel demineralization, little is known about the effect of surface irradiated on bacterial growth. Thus, this in vitro study was preformed to evaluate the biofilm formation on enamel previously irradiated with a CO2laser (λ = 10.6 µM).MethodsFor this in vitro study, 96 specimens of bovine enamel were employed, which were divided into two groups (n = 48): 1) Control-non-irradiated surface and 2) Irradiated enamel surface. Biofilms were grown on the enamel specimens by one, three and five days under intermittent cariogenic condition in the irradiated and non-irradiated surface. In each assessment time, the biofilm were evaluated by dry weigh, counting the number of viable colonies and, in fifth day, were evaluated by polysaccharides analysis, quantitative real time Polymerase Chain Reaction (PCR) as well as by contact angle. In addition, the morphology of biofilms was characterized by fluorescence microscopy and field emission scanning electron microscopy (FESEM). Initially, the assumptions of equal variances and normal distribution of errors were conferred and the results are analyzed statistically by t-test and Mann Whitney test.ResultsThe mean of log CFU/mL obtained for the one-day biofilm evaluation showed that there is statistical difference between the experimental groups. When biofilms were exposed to the CO2laser, CFU/mL and CFU/dry weight in three day was reduced significantly compared with control group. The difference in the genes expression (Glucosyltransferases (gtfB) and Glucan-binding protein (gbpB)) and polysaccharides was not statically significant. Contact angle was increased relative to control when the surface was irradiated with the CO2laser. Similar morphology was also visible with both treatments; however, the irradiated group revealed evidence of melting and fusion in the specimens.ConclusionIn conclusion, CO2laser irradiation modifies the energy surface and disrupts the initial biofilm formation.

Comparison of bond strength and surface morphology of dental enamel for acid and Nd-YAG laser etching

1999 ◽  
Author(s):  
Diagaradjane Parmeswearan ◽  
Singaravelu Ganesan ◽  
P. Ratna ◽  
D. Koteeswaran
Keyword(s):  
Surface Morphology ◽  
Bond Strength ◽  
Dental Enamel ◽  
Laser Etching ◽  
Yag Laser

Nightguard Vital Bleaching and Its Effect on Enamel Surface Morphology

2001 ◽  
Vol 13 (2) ◽  
pp. 132-139 ◽  
Author(s):  
RALPH H. LEONARD ◽  
JAMES C. EAGLE ◽  
GLENN E. GARLAND ◽  
KEVIN P. MATTHEWS ◽  
ANDY L. RUDD ◽  
...  
Keyword(s):  
Surface Morphology ◽  
Enamel Surface

scholarly journals Low-Pressure Plasma Sterilization for Test Specimens to be Worn on Splints in the Oral Cavity

Coatings ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 99 ◽  
Author(s):  
Ella A. Naumova ◽  
Alexander-Simon Engel ◽  
Hagen Tizian Kranz ◽  
Marvin Schneider ◽  
Jan Tietze ◽  
...  
Keyword(s):  
Oral Cavity ◽  
Dental Enamel ◽  
Low Pressure ◽  
Laser Scanning Microscopy ◽  
Enamel Surface ◽  
Confocal Laser ◽  
Oral Biofilm ◽  
Pressure Plasma ◽  
Low Pressure Plasma ◽  
Before And After

Bacterial biofilms adhere to all oral surfaces and may alter or degrade them. For investigations of the oral biofilm, growing on new restorative dental biomaterials, sterilized dental enamel surfaces as natural, control, and reference materials are used. A novel method for disinfection and sterilization of surfaces is low-pressure plasma (LPP) sterilization, which is a nondestructive and nontoxic technology. The roughness of the dental enamel surface was determined before and after LPP sterilization. Enamel discs were placed in dental splints and worn for five days in vivo. Oral biofilm was fixed for scanning electron microscopy (SEM). Biofilms growing in vitro were characterized microbiologically before and after sterilization and examined by confocal laser scanning microscopy (CLSM). Microbiology demonstrated that various bacterial strains were present in the biofilms. SEM showed multiple layers of densely packed bacteria, and CLSM demonstrated that the biofilm contained live and dead bacteria. After LPP sterilization, no biofilm could be detected, and the enamel surface remained unaltered. It may be concluded that LPP sterilization is an effective, nondestructive method for disinfection of enamel before application in the oral cavity. LPP sterilization may be suitable for sterilization of dental materials without altering their surfaces.

Remineralization of Natural Tooth Enamel in Artificial Saliva Environment

2017 ◽  
Vol 68 (3) ◽  
pp. 510-514 ◽  
Author(s):  
Agripina Zaharia ◽  
Viorica Ghisman Plescan ◽  
Irina Atkinson ◽  
Oana Catalina Mocioiu ◽  
Alina Cantaragiu ◽  
...  
Keyword(s):  
Tooth Enamel ◽  
Artificial Saliva ◽  
Dental Enamel ◽  
Hexagonal Structure ◽  
Enamel Surface ◽  
Enamel Matrix Derivative ◽  
Phosphate Solution ◽  
X Ray ◽  
Composition And Structure ◽  
Demineralized Enamel

This paper investigates in situ remineralization of the acid-etched natural enamel surface, by incubation in a phosphate solution with neutral pH, at 37 �C for 4-10 days, without using any enamel matrix derivative (EMD). We investigated the morphology, crystallinity, chemical composition and structure of the newly grown layer onto the natural enamel surface stored in contact with artificial saliva (AS) having a composition similar to natural oral environment. The crystalline phases, crystallite size and orientation, as well as the chemical and phase composition of the remineralized dental enamel samples were studied by scanning electron microscopy coupled with energy dispersive X-ray spectrometry, Fourier transform infrared spectroscopy and X-ray diffraction. The experimental results showed that the enamel crystals grown on the demineralized enamel surface are mainly Ca-deficient apatite hexagonal structure. Fluoridated hydroxyapatite and sylvite-type KCl crystallites, which amount considerable increased in the case of sample stored in AS for 10 days, were also identified.

Sign in / Sign up

Export Citation Format

Share Document