Image‐Guided Ablation of Dental Calculus From Root Surfaces Using a DPSS Er:YAG Laser

Fried, William; Chan, Kenneth H.; Darling, Cynthia L.; Curtis, Donald A.; Fried, Daniel

doi:10.1002/lsm.23122

Cited by 5 publications

(4 citation statements)

References 68 publications

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“…Damage to the enamel makes it more susceptible to bacterial plaque accumulation. Radiation can also affect the physical properties of bacterial plaque that adheres to teeth [29]. Certain doses of radiation can make plaque more "sticky" to the tooth surface, making it more difficult to effectively remove by brushing or maintaining oral hygiene.…”

Section: Resultsmentioning

confidence: 99%

Analysis of the Environmental Impact of Radiation Doses on Dental and Oral Diseases (K03.6, K05.1, and K05.3) in Workers in the Indonesian National Nuclear Energy Agency

Fikri,

Dwidjartini,

Puspitasari

et al. 2023

IJSSE

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Gamma radiation has a significant influence on oral health disorders. The effects of ionizing radiation can cause tooth decay, due to a reduction in saliva production and changes in the oral environment that can increase bacterial growth leading to dental caries, and enamel erosion. The study aims to determine the relationship between exposure to gamma radiation dose and length of work on the incidence of dental calculus (K03.6) periodontal (K05.3) and gingivitis (K05.1). We also measured smoking behavior and history of diabetes mellitus as confounding variables. The type of research used is objective correlation, to determine the relationship of gamma radiation exposure to oral and dental diseases. The research design is a retrospective-reference period cohort, data collection is carried out on cases from 2017 to 2019. Based on the results of the analysis of radiation dose in 2019, there was a significant relationship between radiation dose and calculus formation with a value of (R=0.503 p=0.025). In 2018, dental calculus and gingivitis were significantly related, strong correlation, value (R=0.555 p=0.001). In 2019, the incidence of gingivitis and radiation dose, there is a strong correlation and is significantly related, to the value (R=0.507 p=0.021). Patients with a history of diabetes are very susceptible to periodontal and are not related to the length of work. It is recommended that radiation workers who have a history of diabetes and/or smoking take care of dental and oral conditions at least twice a year so that periodontal disease can be detected as early as possible.

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Section: Resultsmentioning

confidence: 99%

Analysis of the Environmental Impact of Radiation Doses on Dental and Oral Diseases (K03.6, K05.1, and K05.3) in Workers in the Indonesian National Nuclear Energy Agency

Fikri,

Dwidjartini,

Puspitasari

et al. 2023

IJSSE

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“…SWIR and OCT images may be useful to help guide caries removal by more accurately showing the lateral spread of caries lesions below the enamel. Other studies have shown that SWIR and OCT images can be used to help guide the selective removal of calculus from root surfaces [55]. Serial SWIR images have been used to facilitate the selective removal of small occlusal lesions confined to the enamel [56].…”

Section: Discussionmentioning

confidence: 99%

Short-Wavelength Infrared Imaging of Infected and Affected Dentin

Ng,

Ho,

Wycoff

et al. 2024

Diagnostics

Self Cite

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Stains produced by bacteria or those found in blood and food byproducts accumulate in highly porous caries lesions. They can interfere with accurate diagnosis and the selective removal of carious tissue during cavity preparations. Short-wavelength infrared (SWIR) imaging studies have shown that stain molecules do not absorb light beyond 1200 nm. The objective of this study was to image affected and infected dentin atSWIR wavelengths. Sections of 3 mm thickness were cut from the extracted teeth with deep dentinal lesions. The sound (normal), affected (stained), and infected (demineralized) dentin on each section were examined with reflected light at wavelengths from 400 to 1700 nm, red and green fluorescence, and with optical coherence tomography (OCT). Microcomputed tomography (microCT) was used to measure the mineral density at each location investigated. Significant (p < 0.05) differences were observed in the reflected light intensity at 400–850 nm and for fluorescence between the sound, affected, and infected dentin. SWIR imaging did not show significant reductions in reflectivity for the affected and infected dentin. SWIR images may be valuable for monitoring the lateral spread of dentinal lesions on the occlusal surfaces of teeth.

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“…Finally, it is worth noting that recently published studies with novel laser systems [32–34] suggest that laser ablation may be used also as an alternative to standard mechanical instrumentation in order to reduce generated debris and smear layer.…”

Section: Discussionmentioning

confidence: 99%

Characteristics of Bubble Oscillations During Laser‐Activated Irrigation of Root Canals and Method of Improvement

Lukač

Jezeršek

2020

Lasers Surg Med

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Background and Objectives: Laser-activated irrigation of dental root canals is being increasingly used as its efficacy has been shown to be superior compared with conventional techniques. The method is based on laser-initiated localized fluid evaporation and subsequent rapid bubble expansions and collapses, inducing microfluid flow throughout the entire volume of the cavity. The irrigation efficacy can be further improved if optimally delayed "SWEEPS" double laser pulses are delivered into the canal. This study aims to show that the irrigation efficacy, as measured by the induced pressure within the canal, is related to the double pulse delay, with the maximal pressure generated at an optimal delay. The second aim is to find a method of determining the optimal delay for different cavity dimensions and/or laser parameters. Study Design/Materials and Methods: Experiments were made in transparent models of root canals where Er:YAG laser (λ = 2.94 μm, pulse duration t p = 25 or 50 microseconds, and pulse energies up to E L = 40 mJ) was used with a combination of cylindrical and conical fiber-tip geometries (diameters 400 and 600 µm). Highspeed photography (60,000 fps) and average pressure measurements inside the canal were used for process characterization. Results: The results show that a pressure amplification of more than 1.5 times occurs if the laser pulse delay approximately coincides with the bubble oscillation time. Correlations between normalized oscillation time and canal diameter for a wide range of laser pulse energies (R 2 = 0.96) and between the average pressure within the canal and the bubble oscillation periods (R 2 = 0.90) were found. A relationship between the bubble oscillation time and the diameter of the treated cavity was found depending on the bubble oscillation time in an infinite fluid reservoir. Conclusions: The bubble oscillation time within a constrained volume can be determined based on the known oscillation time in infinite space, which offers a fast and simple solution for optimization of the laser parameters. These findings enable determination of optimal conditions for shock wave generation, and improvement of root canal irrigation at the same dose of laser energy input, leading to improved treatment efficacy and safety. Lasers Surg. Med.

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Image‐Guided Ablation of Dental Calculus From Root Surfaces Using a DPSS Er:YAG Laser

Cited by 5 publications

References 68 publications

Analysis of the Environmental Impact of Radiation Doses on Dental and Oral Diseases (K03.6, K05.1, and K05.3) in Workers in the Indonesian National Nuclear Energy Agency

Analysis of the Environmental Impact of Radiation Doses on Dental and Oral Diseases (K03.6, K05.1, and K05.3) in Workers in the Indonesian National Nuclear Energy Agency

Short-Wavelength Infrared Imaging of Infected and Affected Dentin

Characteristics of Bubble Oscillations During Laser‐Activated Irrigation of Root Canals and Method of Improvement

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