scholarly journals A Novel Digital Technique to Quantify the Area and Volume of Enamel Removal after Interproximal Enamel Reduction

2021 ◽  
Vol 11 (3) ◽  
pp. 1274
Author(s):  
Martina Triduo ◽  
Álvaro Zubizarreta-Macho ◽  
Jorge Alonso Pérez-Barquero ◽  
Clara Guinot Barona ◽  
Alfonso Alvarado Lorenzo ◽  
...  
Keyword(s):  
Tooth Enamel ◽  
Enamel Surface ◽  
Digital Measurement ◽  
Morphometric Measurement ◽  
Digital Technique ◽  
Surface Reduction ◽  
Contact Points ◽  
Measurement Protocol ◽  
Enamel Reduction ◽  
Area And Volume

The aim of this study was to show a novel and accurate digital measurement protocol by analyzing the area and volume for interproximal tooth enamel surface reduction. In total, 14 lower teeth from all dental sectors were embedded into an epoxy resin and distributed as the lower dental arch, keeping the contact points. The experimental model was submitted to an intraoral digital impression before and after interproximal tooth enamel surface reduction using air-rotor strips and then re-contouring and polishing the interproximal enamel surfaces. These steps helped obtain standard tessellation language (STL) digital files. Furthermore, each tooth in the preoperative and postoperative full-arch STL digital files was segmented individually and aligned to analyze the area and volume of the interproximal tooth enamel surface reduction using engineering morphometry software. Descriptive analysis of the area and volume of the interproximal tooth enamel surface reduction was performed using a Student t-test. Higher enamel reduction area (3.53 ± 3.08 mm2) and volume (0.32 ± 0.22 mm3) values were shown on the distal surface compared with the area (2.97 ± 3.05 mm2) and volume (0.22 ± 0.16 mm3) of the enamel reduction on the mesial surface measured using the morphometric measurement digital protocol. The morphometric measurement protocol is an accurate digital measurement protocol for analyzing the area and volume of interproximal enamel surface reduction.

scholarly journals Novel Digital Technique to Quantify the Area and Volume of Cement Remaining and Enamel Removed after Fixed Multibracket Appliance Therapy Debonding: An In Vitro Study

2020 ◽  
Vol 9 (4) ◽  
pp. 1098 ◽  
Author(s):  
Álvaro Zubizarreta-Macho ◽  
Martina Triduo ◽  
Jorge Alonso Pérez-Barquero ◽  
Clara Guinot Barona ◽  
Alberto Albaladejo Martínez
Keyword(s):  
Measurement Techniques ◽  
Digital Measurement ◽  
Micro Computed Tomography ◽  
Digital Technique ◽  
Alignment Procedure ◽  
Measurement Protocol ◽  
Cement Removal ◽  
Multibracket Appliance ◽  
Area And Volume

The aim of this study was to construct a novel, repeatable, reproducible, and accurate measurement protocol for the area and volume of the remaining cement after removal of fixed multibracket appliances, the area and volume of remaining cement after cement removal, the area and volume of enamel removed after cement removal, and the volume of cement used to adhere fixed multibracket appliances. A total of 30 brackets were cemented and removed with over 30 extracted teeth embedded into three experimental models of epoxy resin. The models were scanned before and after bracket placement, bracket debonding, and polishing the remaining cement. The brackets were submitted to micro-computed tomography. The standard tessellation language digital files were aligned, segmented, and re-aligned using geomorphometric software. The digital measurement technique accuracy, repeatability, and reproducibility were analyzed using Gage R&R statistical analysis. The variability attributable to the area and volume measurement techniques of the total variability of the samples was 0.70% and 0.11% for repeatability, respectively, and 0.79% and 0.01% for reproducibility, respectively. The re-alignment procedure is a repeatable, reproducible, and accurate technique that can be used to measure the area and volume of the remaining cement after removal of fixed multibracket appliances, the area and volume of remaining cement after cement removal, the area and volume of enamel removed after cement removal, and the volume of cement used to adhere the fixed multibracket appliance.

scholarly journals A Repeatable and Reproducible Digital Method to Quantify the Cement Excess and Enamel Loss after Debonding Lingual Multibracket Appliance Therapy

2021 ◽  
Vol 11 (3) ◽  
pp. 1295
Author(s):  
Alba Belanche Monterde ◽  
Alberto Albaladejo Martínez ◽  
Alfonso Alvarado Lorenzo ◽  
Adrián Curto ◽  
Jorge Alonso Pérez-Barquero ◽  
...  
Keyword(s):  
Measurement Technique ◽  
Measurement Method ◽  
Dental Arch ◽  
Micro Computed Tomography ◽  
Morphometric Measurement ◽  
Before And After ◽  
Repeatability And Reproducibility ◽  
Lingual Brackets ◽  
Multibracket Appliance ◽  
Area And Volume

The aim of the present study is to present a repeatable, reproductible, and accurate morphometric measurement method for measuring and quantifying the area and volume of cement that remains after fixed lingual multibracket appliance debonding, enamel loss after fixed lingual multibracket appliance debonding, and the volume of cement used to adhere fixed lingual multibracket appliances. Ten conventional lingual brackets were cemented in 10 extracted teeth embedded into an epoxy resin model simulating a dental arch. This model was scanned before and after bonding the lingual brackets, after debonding, and after polishing the surfaces. We also performed a Micro-Computed Tomography scan of the lingual brackets used. Afterward, the standard tessellation language (STL) digital file was aligned, each tooth was segmented individually, and the file was re-aligned using engineer morphometry software. Inter-operator and intra-operator comparative analyses were performed using the ANOVA test, and the repeatability and reproducibility of the morphometric measurement technique were analyzed using Gage R&R statistical analysis. Repeatability showed 0.07% and 0.16% variability associated with the area and volume measures, respectively, while reproducibility showed 0.00% variability associated with the area and volume measures, respectively. In conclusion, the morphometric measurement technique is a repeatable, reproductible, and accurate morphometric measurement method for quantifying the area and volume of cement that remains after fixed lingual multibracket appliance debonding, enamel loss after fixed lingual multibracket appliance debonding, and the volume of cement used to adhere fixed lingual multibracket appliances.

scholarly journals Comparative evaluation of microhardness and morphology of permanent tooth enamel surface after laser irradiation and fluoride treatment - An in vitro study

LASER THERAPY ◽  
2016 ◽  
Vol 25 (3) ◽  
pp. 201-208 ◽  
Author(s):  
Puneet Kumar ◽  
Mridula Goswami ◽  
Jatinder Kaur Dhillon ◽  
Ferah Rehman ◽  
Deepti Thakkar ◽  
...  
Keyword(s):  
Laser Irradiation ◽  
Comparative Evaluation ◽  
Tooth Enamel ◽  
Permanent Tooth ◽  
Enamel Surface ◽  
Fluoride Treatment

scholarly journals Effective Fluoride Gel Application on Deciduous Tooth Enamel by Low Temperature Atmospheric Plasma

2021 ◽  
Author(s):  
Young-Min Kim ◽  
Seoul-Hee Nam ◽  
Hyun-Young Lee ◽  
Gyoo-Cheon Kim
Keyword(s):  
Low Temperature ◽  
Tooth Enamel ◽  
Low Frequency ◽  
Argon Plasma ◽  
Enamel Surface ◽  
Atmospheric Plasma ◽  
University Hospital ◽  
Deciduous Teeth ◽  
Control Group ◽  
Electron Probe Micro Analyzer

Abstract Background: Low temperature atmospheric plasma has been studied in biomedical fields but the fluoride application effect of plasma on deciduous teeth has not been studied. This study examined the fluoride application effect of plasma devices (low frequency helium and microwave argon plasma) on the enamel surface of deciduous teeth.Methods: In the tooth specimens of the control group, only 1.23% acidulated phosphate fluoride (APF) gel was applied, whereas APF gel and plasma were applied to the specimens of the experiment group. The fluoride on the enamel surface was measured at different treatment times, and its retentivity was also observed over a 4 week period using an electron probe micro analyzer, which is a strong detector of fluoride. The study protocol was reviewed by the Institutional Review Board (IRB; PNUDH-2014-026) of Pusan National University Hospital.Results: More fluoride was measured and maintained in the experiment group than the control group, and the amount of coated fluoride increased with increasing applied frequency. A comparison of two types of plasma revealed the microwave argon plasma to have a higher application effect of fluoride than the low frequency helium plasma. This study suggests that fluoride application using plasma could be an effective and lasts longer than the method of applying only fluoride. Conclusion: The fluoride application with low temperature atmospheric plasma which is safe device is an innovative method to prevent dental caries and decrease number of visiting to dental clinic in children.

scholarly journals The effect of theobromine and NaF 2% exposure to enamel surface hardness after immersing in orange juice beverage

2020 ◽  
Vol 9 (2) ◽  
pp. 70
Author(s):  
Tamara Yuanita ◽  
Setyabudi Setyabudi ◽  
Qintan Sekar Adjani
Keyword(s):  
Orange Juice ◽  
Theobroma Cacao ◽  
Tooth Enamel ◽  
Surface Hardness ◽  
Enamel Surface ◽  
Control Group ◽  
Toxicity Effect ◽  
Group I ◽  
Significant Difference ◽  
Peel Extract

Background: Consumption of orange juice which had acidic quality will cause a demineralization on enamel. The most effective way to prevent the demineralization process was by involving remineralization agents. Fluoride was effective to improve remineralization but has toxicity effect and caused fluorosis at certain dose. Another alternative for remineralization agent without providing side effects is theobromine contained in cocoa peel extract (Theobroma cacao). Objective: To explain the effect of theobromine and NaF 2% exposure on enamel surface hardness after immersion in commercial orange juice. Method: Twenty-seven cattle incisors were cut into a square shape 1x1 cm and then planted in a round resin mold then divided into three groups. All three groups were immersed in orange juice beverage for 60 minutes. The control group was immersed in distilled water, group I was given theobromine 200 mg / L, and group II was given 2% NaF after exposure for 96 minutes. Surface hardness measurements were carried out using the Wolpert Micro Vickers Testers tool. Results: There was a significant difference (p <0.05) between surface hardness of tooth enamel from the control group and theobromine group and there was also a significant difference between the control group and the NaF group. However, there was no significant difference (p> 0.05) in the NaF group with theobromine group. Conclusion: The effect of exposure to theobromine and NaF 2% on surface enamel hardness after immersion in orange juice beverage has the same result.

scholarly journals Influence of different types of whitening tooth pastes on the tooth color, enamel surface roughness and enamel morphology of human teeth

F1000Research ◽  
2019 ◽  
Vol 8 ◽  
pp. 1764
Author(s):  
Mohamed Shamel ◽  
Mahmoud M. Al-Ankily ◽  
Mahmoud M. Bakr
Keyword(s):  
Surface Roughness ◽  
Tooth Enamel ◽  
Morphological Changes ◽  
Enamel Surface ◽  
Tooth Surface ◽  
Tooth Whitening ◽  
Sem Images ◽  
Human Teeth ◽  
Tooth Color ◽  
Different Types

Background: Tooth whitening usually includes the direct use of gels containing carbamide or hydrogen peroxide on the tooth enamel surface through a wide variety of products formulas. A generally new advancement in whitening of teeth uses the significant importance of the tooth color shift from yellow to blue in delivering a general enhancement in the observation of tooth whiteness. The aim of the current work was to measure the tooth whitening effects, surface roughness and enamel morphology of six different types of blue covarine-containing and blue covarine-free toothpastes using in vitro models. Methods: A total of 70 sound extracted human premolars were randomly and equally divided into seven groups, and each subjected to tooth brushing using different toothpastes. Tooth color and enamel surface roughness were measured before and after the brushing procedure using a white light interferometer, and scanning electron microscopy (SEM) was used to assess tooth surface after the procedure. Results: Toothpaste containing blue covarine resulted in the greatest improvement in tooth color amongst all groups as well as a statistically significant color difference when compared to blue covarine-free toothpaste.  Furthermore, blue covarine-containing toothpaste resulted in fewer morphological changes to the enamel surface. This was confirmed with SEM images that showed smooth enamel surfaces with fine scratches.   Conclusions: The results from the present study show that blue covarine containing toothpastes are reliable, effective in tooth whitening and produce less surface abrasion when compared to blue covarine-free toothpastes.

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.

Water-Switchable Interfacial Bonding on Tooth Enamel Surface

2018 ◽  
Vol 4 (7) ◽  
pp. 2364-2369 ◽  
Author(s):  
Licheng Hua ◽  
Jing Zheng ◽  
Zhongrong Zhou ◽  
Z. Ryan Tian
Keyword(s):  
Tooth Enamel ◽  
Interfacial Bonding ◽  
Enamel Surface

scholarly journals Are Desensitizing Toothpastes Equally Biocompatible and Effective Against Microorganisms?

2017 ◽  
Vol 28 (5) ◽  
pp. 604-611
Author(s):  
Samira Esteves Afonso Camargo ◽  
Noala Vicensoto Moreira Milhan ◽  
Fernanda de Oliveira Saraiva ◽  
Jonatas Rafael de Oliveira ◽  
Luciane Dias de Oliveira ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Antimicrobial Activity ◽  
Tooth Enamel ◽  
Micronucleus Test ◽  
Human Fibroblasts ◽  
Enamel Surface ◽  
Control Group ◽  
Untreated Control Group ◽  
The Common ◽  
Roughness Evaluation

Abstract The aims of this study were evaluate cytotoxicity, genotoxicity, antimicrobial activity of desensitizing toothpastes compared to a common one and the surface roughness of tooth enamel submitted to brushing with these toothpastes. Samples of three desensitizing toothpastes (Colgate Sensitive, Sensodyne and Oral B Sensitive) and common toothpaste (Colgate) were placed in contact with gingival human fibroblasts. Cytotoxicity and genotoxocity were measured by MTT assay and micronucleus test. Antimicrobial activity of the toothpastes extracts against C. albicans, S. mutans and S. aureus were assessed. For surface roughness evaluation, bovine teeth were submitted to 10.000 brushing cycles. The results were analyzed statically using Mann-Whitney U, ANOVA and Z tests (p<0.05). All toothpastes caused cytotoxic effect to the cells (p<0.05), except Colgate Sensitive. The toothpastes did not increase the number of micronuclei compared to the untreated control group. Colgate eliminated all the evaluated microorganisms at lower concentrations compared to Colgate Sensitive and Oral B Sensitive, which were not able to eliminate S. aureus. Sensodyne did not reach the minimum microbicidal concentration. The surface roughness of tooth enamel increased after brushing with Colgate Sensitive and Oral B Sensitive, however the comparison between groups showed no difference on the enamel surface roughness presented by desensitizing toothpastes when compared with the common one (p>0.05). Based on these results, we can conclude that although none toothpaste has induced genotoxicity, Colgate Sensitive was also not cytotoxic. Colgate was the most effective against the microorganisms, and there were no differences on the enamel surface roughness between the groups.

Conditioning of tooth enamel surface by radiation of Nd:YAG and Ho:YAG lasers

1996 ◽  
Author(s):  
Gregory B. Altshuler ◽  
Andrei V. Belikov ◽  
R. Slavichek ◽  
M. Traxler ◽  
Donald C. Hilgers ◽  
...  
Keyword(s):  
Tooth Enamel ◽  
Enamel Surface
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