Cavitation in a periodontal pocket by an ultrasonic dental scaler: A numerical investigation

Yu, You; Mahmud, Mehdi; Vyas, Nina; Smith, Warren R.; Wang, Qianxi; Walmsley, A. D.

doi:10.1016/j.ultsonch.2022.106178

Cited by 7 publications

(8 citation statements)

References 31 publications

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“…As mentioned in Yu et al [11] , an equivalent weak form for finite element analysis when neglecting all body forces b can be expressed as

where δ u str is an arbitrary variation displacement field, δ ε str is the corresponding strain variation, n denotes the outward unit normal to the surface of the structure, p str represents the pressure exerted on both the liquid-scaler interface S ls and the liquid-tissue interface S lg , and t str represents the surface traction which is calculated from the harmonic oscillation at S ts .…”

Section: Physical and Numerical Modelmentioning

confidence: 81%

“…Previous studies [10] , [11] have shown that the scaler tip displacement remains unaffected by the truncated surface when the truncation is near the circular cylinder base. Consequently, in this study, the scaler is truncated at S ts , as depicted in Fig.…”

Section: Physical and Numerical Modelmentioning

confidence: 90%

“…Manmi et al [10] explored the effects of operating conditions of ultrasound scalers, such as amplitude and frequency, on cavitation generation around an ultrasonic dental scaler within a liquid without any bound. Yu et al [11] investigated cavitation generation by a dental scaler within a simplified periodontal pocket with a rigid boundary.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Numerical investigation of cavitation in periodontal Pockets: Insights for enhancing cleaning efficiency

Yu,

Smith,

Wang

et al. 2023

Ultrasonics Sonochemistry

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“…As mentioned in Yu et al [11] , an equivalent weak form for finite element analysis when neglecting all body forces b can be expressed as

Section: Physical and Numerical Modelmentioning

confidence: 81%

Section: Physical and Numerical Modelmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Numerical investigation of cavitation in periodontal Pockets: Insights for enhancing cleaning efficiency

Yu,

Smith,

Wang

et al. 2023

Ultrasonics Sonochemistry

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“…This applies especially to reflections from soft material boundaries and biological tissues. Numerical results indicate that the cavitation density in the hole increases with the decreasing hole volume and the increasing taper ratio [61] . When it comes to solid boundary cavities, a Super Short Pulse (SSP) Er:YAG modality was developed originally for the creation of acoustic waves in narrow volume geometries of the dental root canal [32] , [33] , [34] .…”

Section: Introductionmentioning

confidence: 94%

The evolution of cavitation in narrow soft-solid wedge geometry mimicking periodontal and peri-implant pockets

Jezeršek

Molan

Terlep

et al. 2023

Ultrasonics Sonochemistry

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“…The use of shock waves combined with the water jet could save 20–50% time during SRP procedures, reduce clinical fatigue for dentists, and increase their tactile sensitivity over time [ 6 – 8 ]. In addition, repeated use of manual scaling may cause uncontrollable cementum loss due to sharp-edged work tip, while ultrasonic therapy, using high-frequency mechanical force, void effect, micro-flow force, and flushing action, has been shown to significantly reduce the cementum damage [ 7 , 9 , 10 ]. Due to these advantages, the ultrasonic scaler has become a widely accepted instrument in clinics.…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of typodont, quail egg and virtual simulation for ultrasonic periodontal scaling teaching among pre-clinical students: a randomized trial

Fu,

Lao,

Gao

et al. 2024

BMC Oral Health

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Background This study aimed to compare the efficacy of three different techniques, namely virtual simulation technology (VS), traditional pathological typodont (TT), and quail egg (QE), in pre-clinical training of periodontal ultrasonic scaling. It also aimed to propose an integrated teaching approach for ultrasonic scaling teaching. Methods This single-blind randomized multi-arm trial enrolled 108 fourth-year students from Guanghua School of Stomatology at Sun Yat-sen University. The participants were randomly, evenly assigned to VS, TT, or QE group. First, the participants received theoretical review on ultrasonic scaling and demonstrative teaching. Then in the 90-minute operation training by group, students used traditional typodont equipped in head-simulators, raw quail eggs, or scaling module of the UniDental VS system respectively. Then all participants practiced on pathological models for 30 min. In the final operation examination, participants were instructed to remove the supra- and sub-gingival calculi pre-set on designated teeth by ultrasonic scalers within 30 min. Their performances were evaluated by residual calculus rate and a multi-perspective scoring scale. After the examination, questionnaires were provided to assess the teaching effects of each method and the fidelity of VS. Statistical analysis was carried out using one-way, two-way ANOVA, and multiple t-test. Results Students in VS group had significant higher total test scores than QE group (87.89 ± 6.81, 83.53 ± 8.14) and TT group (85.03 ± 6.81). VS group scored higher in several dimensional comparisons with the other two groups, especially in difficult situations. QE group had higher scores particularly in force application and supra-gingival scaling. TT group scored the highest in pivot stability practice and body position training. Students gave higher scores when assessing the fidelity of VS than experienced teachers. Conclusion The study highlights the importance of specialized pre-clinical training on ultrasonic scaling for dental students. The methods adopted in current study (VS, TT and QE) each offered unique advantages in education, which can be combined to create an integrative teaching procedure. This procedure aims to provide an effective, advisable and normative pre-clinical training procedure for ultrasonic scaling. By utilizing the strengths of each method, dental educators can deliver high-quality training and ensure that students are well-prepared for clinical practice.

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Cavitation in a periodontal pocket by an ultrasonic dental scaler: A numerical investigation

Cited by 7 publications

References 31 publications

Numerical investigation of cavitation in periodontal Pockets: Insights for enhancing cleaning efficiency

Numerical investigation of cavitation in periodontal Pockets: Insights for enhancing cleaning efficiency

The evolution of cavitation in narrow soft-solid wedge geometry mimicking periodontal and peri-implant pockets

Effectiveness of typodont, quail egg and virtual simulation for ultrasonic periodontal scaling teaching among pre-clinical students: a randomized trial

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