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"Dental Instruments"
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Wilkins' clinical practice of the dental hygienist
Walking dental hygiene students step-by-step through everything they need to know.
Book
Deep learning-based object detection of restorative dental instruments with potential implications for workflow automation and infection control in dental supply units
This study presents a proof-of-concept deep learning approach for automated detection and classification of restorative dental instruments on standardized trays, aiming to support workflow automation and infection control in dental supply units. A dataset comprising 1,000 images and 14,000 annotated instances of restorative dental instruments across 14 categories was developed. The YOLOv8 model was trained and evaluated on this dataset using standard object detection metrics, including precision, recall, and mean average precision at IoU thresholds 0.5 (mAP@0.5) and 0.5:0.95 (mAP@[0.5:0.95]). To assess model advancement, YOLOv8 performance was compared against its predecessors, YOLOv5, YOLOv6, and YOLOv7, under identical experimental settings. A session-level data split was implemented as the primary evaluation to minimize data leakage and provide a realistic estimate of generalization across unseen tray configurations. The YOLOv8 model achieved highest mean average precision mAP@0.5 of 95.9% and mAP@[0.5:0.95] of 80.9%, demonstrating robust detection capability under both standard and stringent evaluation thresholds. Across instrument categories, YOLOv8 demonstrated precision ranging from 90.3% to 100% and recall from 80.6 to 98.5%. The findings demonstrate the feasibility of using YOLOv8 for automated restorative dental instrument detection as an early-stage tool for improving supply unit efficiency. While results indicate high detection accuracy and robustness, further validation in diverse clinical environments is needed. Future deployment should incorporate human-in-the-loop verification, audit trails, and error escalation mechanisms to ensure safe and accountable AI-assisted workflows.
Journal Article
Dentist tools
\"Dentists use many tools to keep your teeth healthy. Learn what these special tools do as you explore the tools you might see on your next trip to the dentist!\"-- Provided by publisher.
Book
Clinical and radiographic outcomes of pulpectomy in primary teeth using two rotary file systems compared with manual files: a cost-effectiveness analysis
Objectives
This study aimed to evaluate the clinical and radiographic success of endodontic treatment in primary molars, in addition to the evaluation of the working time (WT) and cost-effectiveness Ratio (CER), and Incremental Cost-Effectiveness Ratio (ICER) of the Fanta AF Baby and Zuanba file systems, compared to manual K-files.
Materials and methods
One hundred and sixty-two-second primary molars were randomly assigned into three groups, according to the type of the instrumentation file system. A pulpectomy procedure was performed, and the average WT was recorded for each group. Clinical assessments were made at 3-, 6-, and 12-month follow-ups, while radiographic assessments were performed at 6- and 12-month follow-ups. The direct medical cost for one molar in each group was calculated, and the (CER) was determined for each group. ICER was calculated for each group, based on the average WT and radiographic success at the 12-month mark as clinical effectiveness parameters.
Results
The average WT in the manual K-file group was 14.65 (± 1.85) minutes, while the Fanta AF baby file system and Zuanba file system group had an average WT of 10.52 (± 1.13) minutes, and 9.46 (± 1.12) minutes, respectively. By the end of the follow-up period, all groups exhibited the same clinical success rate of 96.7%, with no statistically significant difference (
p
> 0.05). For the radiographic success, the K-file group displayed a higher frequency of failures (11.1%), followed by the Fanta AF baby file system group (7.4%). The Zuanba file system group had the fewest failures, reporting only two cases (3.7%). Regarding ICER, the Fanta AF Baby files system was found to incur an additional cost of 50.63 EGP for reducing one minute of working time, and 52 EGP for achieving one extra successfully treated second primary molar compared to the K-files system. While the Zuanba file system costs an additional 10.98 EGP for reducing one minute of WT, and an extra 28.5 EGP for getting an extra second primary molar successfully treated compared to the K-files.
Conclusion
Both assessed rotary file systems showed shorter average WT, higher radiographic success, and CER compared to the manual k file.
Clinical relevance
This study aids the pediatric dentist in the choice of the most effective, both clinically and economically, rotary filling system for endodontic treatment of primary molars.
Trial registration
The clinical trial was registered at clinical trial.gov identifier NCT04279041, on 2020-02-18.
Journal Article
The smile stealers : the fine + foul art of dentistry
This achingly jawdropping book follows the evolution of dentistry throughout the world from the Bronze Age to the present day, presenting captivating and grim illustrations of the tools and techniques of dentistry through the ages. Organized chronologically, The Smile Stealers interleaves beautiful and gruesome technical illustrations and paintings from the Wellcome Collection's unique archive of material from Europe, America and the Far East with seven authoritative and eloquent themed articles from medical historian Richard Barnett. A comprehensive review of the development of the trade and discipline of dentistry, it covers topics as diverse as the very first dentures (produced by the Etruscans in the seventh century bce); the smile revolution in 18th-century portraiture; and the role of dentistry in forensic science - all in one beautifully illustrated volume. Extending the cult of the medically macabre begun by its predecessors The Sick Rose and Crucial Interventions, The Smile Stealers is guaranteed to appeal to lovers of the horrific and the beautiful alike as it probes the growth of dentistry - from pulling out bad teeth to reconstructing jaws, and from painful action to pain-free interventions and the pursuit of the perfect smile.
Book
Practice of quality management for dental handpiece processing based on FOCUS-PDCA programme
Objective
This study applies the find, organise, clarify, understand, select – plan, do, check and act (FOCUS-PDCA) programme to analyse factors affecting dental handpiece (DHP) processing quality and to optimise the workflow using this quality improvement framework.
Method
A prospective observational study was conducted at the Affiliated Ruijin Hospital of Shanghai Jiaotong University School of Medicine. The study included 2,893 DHPs processed under a routine scheme between July and December 2021 (control group) and 3,032 DHPs processed under the FOCUS-PDCA programme scheme between January and June 2022 (intervention group). The sample size was calculated using the formula for comparing two proportions, aiming to detect a significant difference in processing quality with a power of 80% and an alpha level of 0.05.
Results
The FOCUS-PDCA programme significantly improved pass rates for cleaning (chi-square [χ²] = 58.955, degree of freedom [df] = 1,
P
< 0.01), packaging (χ² = 27.835, df = 1,
P
< 0.01) and sterilisation (χ² = 89.584, df = 1,
P
< 0.01) compared with routine processing. Staff mastery of theoretical knowledge and operational skills was superior in the FOCUS-PDCA group (t = 16.871, df = 18,
P
< 0.01; t = 15.348, df = 18,
P
< 0.01, respectively). The implementation of the programme significantly reduced the incidence of mechanical failures, including bearing and clamping shaft issues (χ² = 5.730, df = 1,
P
< 0.05; χ² = 5.849, df = 1,
P
< 0.05, respectively). The satisfaction score for DHP processing quality was higher in the FOCUS-PDCA group, with a mean of 88.80 ± 5.88, compared with 65.13 ± 7.60 in the control group (t = 13.479, df = 58,
P
< 0.01).
Conclusion
Within the limitations of this study, applying the FOCUS-PDCA programme to DHP processing procedures effectively improved processing quality and reduced mechanical failures. To our knowledge, this is among the first reports applying FOCUS-PDCA to DHP processing in a hospital setting. Clinical doctors and nurses expressed high satisfaction with the quality of processing following the implementation of the improved protocols.
Journal Article
America brushes up : the use and marketing of toothpaste and toothbrushes in the twentieth century
\"The history of toothpaste has long been a testament to the power of false and misleading advertising. Interrupting this steady flow of hyperbole was the one true wonder ingredient: Fluoride, which enabled Crest to predominate for decades as America's top-selling brand\"--Provided by publisher.
Book
Evaluation of enamel integrity after clear aligner attachments removal: a risk–benefit comparison of one-step tools
At the end of clear aligner treatment, attachment removal is essential to restore natural tooth morphology while preserving enamel integrity. This study aimed to compare the effects of seven different composite removal instruments on the enamel surface using a risk-benefit model.
The instruments assessed were: OneGloss, Enhance, SM 104, Sof-Lex disc (coarse grit), tungsten carbide bur, zirconia bur, and white stone bur. Seventy extracted premolar teeth were bonded with standardized condensable composite attachments (2 × 4 × 1 mm). Enamel integrity was quantitatively assessed by measuring surface roughness (µm) and enamel loss depth (mm), and qualitatively analyzed using scanning electron microscopy (SEM). The time required for attachment removal was recorded in seconds. A risk-benefit model was applied to compare enamel damage and time efficiency across tools.
White stone bur exhibited higher surface roughness and greater enamel loss compared to other groups (
= 0.000). Aluminium oxide-based tools (OneGloss, Enhance, SM 104, and the Sof-Lex disc) resulted in less enamel loss than the tungsten carbide bur. The risk-benefit model indicated that OneGloss, Enhance, and SM 104 offered the best balance between enamel preservation and time efficiency. SEM analysis further confirmed that OneGloss and SM 104 produced smoother enamel surfaces compared to other instruments.
OneGloss and SM 104 demonstrated superior time efficiency and preservation of enamel integrity compared to other evaluated tools.
Journal Article
The Smile Stealers
This achingly jawdropping book follows the evolution of dentistry throughout the world from the Bronze Age to the present day, presenting captivating and grim illustrations of the tools and techniques of dentistry through the ages. Organized chronologically, The Smile Stealers interleaves beautiful and gruesome technical illustrations and paintings from the Wellcome Collection's unique archive of material from Europe, America and the Far East with seven authoritative and eloquent themed articles from medical historian Richard Barnett. A comprehensive review of the development of the trade and discipline of dentistry, it covers topics as diverse as the very first dentures (produced by the Etruscans in the seventh century bce); the smile revolution in 18th-century portraiture; and the role of dentistry in forensic science - all in one beautifully illustrated volume. Extending the cult of the medically macabre begun by its predecessors The Sick Rose and Crucial Interventions, The Smile Stealers is guaranteed to appeal to lovers of the horrific and the beautiful alike as it probes the growth of dentistry - from pulling out bad teeth to reconstructing jaws, and from painful action to pain-free interventions and the pursuit of the perfect smile.
eBook
Assessment of occupational noise‐related hearing impairment among dental health personnel
Objectives The purpose of the study was to examine hearing thresholds among dental personnel. The secondary aim was to evaluate sound levels among dental equipment that dental personnel are exposed to. Methods Two hundred forty‐four dentists, dental technicians, dental assistants, and dental students participated. Sixty‐two participated as a control group. Audiological thresholds for the test groups were compared to the control group. All participants were from Jordan University Hospital. Participants completed a questionnaire in addition to their audiometric testing. Otoscopy, tympanometry, and pure tone audiometry were included in their assessment. Three‐factor ANOVA and t tests were utilized to assess the statistical differences of hearing thresholds among the groups and between the two ears. Pearson correlation test was used to assess the effect of age, experience, and duration of exposure on the degree of hearing loss in the test groups for both ears. Results The authors reported statistically significant differences among hearing thresholds between the control group and others. Left hearing thresholds were noted to be significantly poorer in the left versus right ear at 1000, 2000, 4000, and 8000 Hz in dental assistants. The authors also reported a significant relationship between the degree of hearing impairment among dental assistants and the daily duration of exposure to dental occupational noise, followed by age. Conclusion Hearing impairment was higher among dental professionals than the control group and especially among dental assistants and technicians. The authors recommended screening guidelines and adapting hearing protection methods for dental professionals and particularly for dental assistants and technicians.
Journal Article