Evaluation of three different manual techniques of sharpening curettes through a scanning electron microscope: a randomized controlled experimental study

Fiore, Adolfo Di; Mazzoleni, Sergio; Fantin, Francesco; Favero, Lorenzo; Francesco, Maurizio De; Stellini, Edoardo

doi:10.1111/idh.12109

Cited by 4 publications

(8 citation statements)

References 28 publications

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“…This condition can be obtained by sharpening the blade until the junctional area of the coronal and lateral sides then returns to form a straight line, not in a circular movement. 1,5,6 The purpose of this study was to determine the differences in the sharpness level of the sickle scaler instrument cutting edge after sharpened using two different manual sharpening methods, namely the moving instrument technique and the moving stone technique, each using the fine grit Arkansas and ceramic stones.…”

Section: Discussionmentioning

confidence: 99%

“…This result was consistent with the research conducted by Acevedo et al in 2007 and Di Fiore et al in 2015 which stated that sharpening with the moving stone technique showing irregular cutting edges by the presence of wire edges and formations of the bevel or a third surface. 6,7 In the moving stone technique, although the operator was able to see the sharpening angle formed between the whetstone and the lateral side of the instrument, the operator will find it difficult to maintain the sharpening angle when the stone was being moved up and down as a sharpening stroke. Besides, it was very difficult for the operator to stabilize the instruments held by the non-dominant hand; thus the instrument would appear to move slightly when the rock was moving up and down.…”

Section: Discussionmentioning

confidence: 99%

“…Sharpening begins by moving the instrument's lateral side 10 times horizontally with a pressure of 11 KN and sharpening distance of 8 cm along with the fulcrum finger movement starting from the heel third continued to the middle third and ended in the tip third. 5,6 (Figure 1). The whole sample was then cut on the working-end side to be observed in the area of 1-2 mm from the tip of the instrument using an SEM microscope.…”

Section: Methodsmentioning

confidence: 99%

“…The purpose of sharpening the instrument is to restore the blunt edge to become smooth and sharp again. 5,6 Based on the method used, the manual sharpening technique with whetstone divided into two different techniques. The first technique is the moving stone technique and the second technique is the moving instrument technique.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of Manual Sharpening Method Towards the Cutting Edge Index of Sickle Scaler Instrument

2020

IJFMT

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Introduction: Cutting edge sharpness of the periodontal sickle scaler instrument will become blunt after several times of usage; thus the sharpening will be required to maintain the instrument's sharpness of the instrument. Based on the method used, manual sharpening using a whetstone can be divided into a moving instrument technique and moving stone technique. The purpose of this study was to analyze the cutting edge index of a sickle scaler instrument after being sharpened with two different techniques using an electron microscope / SEM. Materials and Methods: Thirty-two new sickle scaler instruments of type H15 / 33 (Oshung Inc.) were randomly selected and divided into four groups. The scaler instrument originated from the factory was becoming a positive control (Group I); the instrument that has been blunted was becoming a negative control (Group II). The other groups were the blunt sickle scaler that sharpened using the moving stone technique (Group III) and the moving instrument technique (Group IV). The cutting edge index of all instruments was then analyzed using SEM (JSM 6360LA, JEOL Ltd, Tokyo, Japan). The cutting edge index data from the photomicrograph was then processed using the Kruskal-Wallis and the Mann-Whitney statistical tests. Result: The results showed a significant difference in the sharpness level between the manual sharpening groups; this can be seen from the p-value = 0,000 (p-value < 0.05). The average cutting edge index value showed the best results in the moving instrument sharpening technique (2.10), followed by the moving stone sharpening technique (3.10). Conclusion: A periodic sharpening of sickle scaler instruments using a moving instrument technique provides a finer and sharper cutting edge level than the moving stone technique.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Analysis of Manual Sharpening Method Towards the Cutting Edge Index of Sickle Scaler Instrument

2020

IJFMT

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“…3: Scanning electron microscope images of the compost material structure during the megathermal period. Labeling of the groups is as shown in Table 1 (SEM) is a type of electron microscope that produces images of a sample by scanning it with a focused beam of electron (Karumi et al, 2014;Di Fiore et al, 2014;Li et al, 2014). We used it to analyze the material composition of the compost directly.…”

Section: Temperature Change During Compostingmentioning

confidence: 99%

An Electron Microscope Study on Different Spent Mushroom in a Compost Environment

Zou¹,

Luan²,

Sun³

et al. 2015

AJFST

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In this study, we used Lentinus edodes residues (XG) and Pleurotus ostreatus residues (PG) as compost materials and used a high-temperature static aerobic composting system to examine the effects of different treatment. We analyzed changes in temperature and compost structure during the process of composting. The study showed that XG and PG mixed by 1:1 increased the temperature of the compost pile and reached to the environmental temperature more rapidly. Mix treatment had maximum temperature of 71°C, had longest megathermal period continued about 9 days than other groups. Scanning Electron Microscope (SEM) showed mix treatment had the best lignin structure variation trend while PG had the worst. Thus, mix treatment significantly increased the composting rate, reaching complete decomposition 10 days before other treatments. These data also suggested that XG as a compost material is better that PG.

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Adhesion of Flowable Resin Composites in Simulated Wedge-Shaped Cervical Lesions: An In Vitro Pilot Study

et al. 2021

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The resin composite restoration of non-carious cervical lesions (NCCLs) still faces some drawbacks mostly related to the quality of the marginal seal. This study attempts to evaluate the adhesive capacities of two flowable and two conventional hybrid resin composite restorations of NCCLs having two types of cervical margins. Our null hypothesis assumes the same adhesive behavior of different materials. The relative composition of dental–restoration structures was also measured. Thus, restored wedge-shaped cervical cavities were realized on both the buccal and oral surfaces of extracted teeth. After immersion in dye solution, sectioning of the teeth was performed. We proposed an optical microscopy method to quantify the dye penetration along the restoration–tooth interface and scanning electron microscopy (SEM) and energy-dispersive X-ray analysis (EDX) to evaluate the quality of the peripheral seal. The data obtained revealed an amount of dentinal microleakage for all tested materials, despite the favorable results of the restoration peripheral seal. Therefore, data from this study failed to reject the null hypothesis. The adhesion is not influenced by the position of cervical margins. The SEM revealed occasional disruptions of the adhesive interface. EDX sustains the qualitative compositions as provided by the manufacturers. Conclusions: The four experimental composites are recommended to restore NCCLs in clinic.

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Evaluation of three different manual techniques of sharpening curettes through a scanning electron microscope: a randomized controlled experimental study

Abstract: The sharpening technique used in group C, which involved the use of the sharpening horse, proved the most effective.

Cited by 4 publications

References 28 publications

Analysis of Manual Sharpening Method Towards the Cutting Edge Index of Sickle Scaler Instrument

Analysis of Manual Sharpening Method Towards the Cutting Edge Index of Sickle Scaler Instrument

An Electron Microscope Study on Different Spent Mushroom in a Compost Environment

Adhesion of Flowable Resin Composites in Simulated Wedge-Shaped Cervical Lesions: An In Vitro Pilot Study

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