The study compared the accuracy of 5 intraoral scanners by evaluating their trueness and precision when scanning single implants, partial prostheses, and full arch cases. CS 3600 and Trios 3 achieved the best results overall, with CS 3600 demonstrating the highest trueness for single crowns and partial prostheses while Trios 3 had the best results for full arch scans. Both scanners also showed very high precision across all cases. The study suggests CS 3600 and Trios 3 are the most accurate intraoral scanners based on their superior trueness and consistency in precision.
AN EXPLORATION OF PERIOCULAR REGION WITH REDUCED REGION FOR AUTHENTICATION : ...cscpconf
Biometrics is science of measuring and statistically analyzing biological data. Biometric system establishes identity of a person based on unique physical or behavioral characteristic possessed by an individual. Behavioral biometrics measures characteristics which are acquired naturally over time. Physical biometrics measures inherent physical characteristics on an individual. Over the last few decades enormous attention is drawn towards ocular biometrics. Cues provided by ocular region have led to exploration of newer traits. Feasibility of periocular region as a useful biometric trait has been explored recently. With the promising results of preliminary examination, research towards periocular region is currently gaining lot of
prominence. Researchers have analyzed various techniques of feature extraction and classification in the periocular region. This paper investigates the effect of using Lower Central
Periocular Region (LCPR) for identification. The results obtained are comparable with those acquired for full periocular texture features with an advantage of reduced periocular area
An exploration of periocular region with reduced region for authentication re...csandit
Biometrics is science of measuring and statistically analyzing biological data. Biometric system
establishes identity of a person based on unique physical or behavioral characteristic possessed
by an individual. Behavioral biometrics measures characteristics which are acquired naturally
over time. Physical biometrics measures inherent physical characteristics on an individual.
Over the last few decades enormous attention is drawn towards ocular biometrics. Cues
provided by ocular region have led to exploration of newer traits. Feasibility of periocular
region as a useful biometric trait has been explored recently. With the promising results of
preliminary examination, research towards periocular region is currently gaining lot of
prominence. Researchers have analyzed various techniques of feature extraction and
classification in the periocular region. This paper investigates the effect of using Lower Central
Periocular Region (LCPR) for identification. The results obtained are comparable with those
acquired for full periocular texture features with an advantage of reduced periocular area.
This study evaluated the accuracy and reproducibility of linear measurements made on 3D digital models created with a surface laser scanner compared to direct measurements on dental casts.
Fifteen anatomic points were identified on 20 dental casts and their corresponding 3D digital models. Eleven linear measurements of arch width and length were made directly on each cast and digitally. There were no statistically significant differences found between the direct and digital measurements.
The study concluded that linear measurements of arch width and length on 3D digital models created with this particular surface laser scanner are accurate and reproducible compared to direct measurements on the original dental casts.
This study evaluated the influence of maxillary central incisor morphology on torque expression. Thirty extracted central incisors were evaluated using 2D surface scanning and 3D photographic modeling. The results showed that displacing the bracket 1-3mm incisally increased lingual root torque by an average of 2.27-8.96 degrees, while displacing it 1-3mm gingivally decreased torque by 5.01-12.33 degrees. The crown-root angle varied from 173-188.5 degrees between teeth. However, there was no significant correlation found between crown-root angle and labial surface convexity. These findings were confirmed by 3D analysis of one tooth.
This presentation gives a brief overview of the current intra oral scanner market as of October 2018. Comparisons of accuracy and a brief overview of some of the software packages available to allow you to go to guide.
360 Visualise: Last year 360 Visualise sold more CBCT in the UK than any other company. Our first scanning centre in Ilkley was the first independent CBCT referral centre outside of London and we now scan over 3000 patients each year. This experience gives us a unique insight into the clinical needs and processes of the dental profession and what can be achieved with new software packages.
New processes are quickly developing enabling implant dentists to quickly scan, plan and print implant drilling guides using third-party applications such as SMoP & BlueSkyBio. The price of these services has reduced dramatically over the past year and with increased competition is set to continue to improve and become more accurate and efficient.
Working with so many dentists and labs, 360 Visualise are in a unique position to support you and your 3D scanner as this incredible technology continues to evolve over the coming years.
IJERD (www.ijerd.com) International Journal of Engineering Research and Devel...IJERD Editor
This document describes a study that used collaborative tools and strategies between engineers and medical professionals to analyze root resorption during orthodontic treatment. Cone beam computed tomography scans were taken of patients' teeth before and after orthodontic treatment. The scans were imported into MIMICS software which was used to segment the teeth and isolate the roots. The root volumes were calculated and compared before and after treatment to statistically analyze changes. There was significant root volume loss observed, especially on the distal and palatal surfaces of lateral incisors and buccal surfaces of central incisors. The study highlights the benefits of collaboration between fields to integrate expertise and solve medical problems using advanced imaging and analysis techniques.
AN EXPLORATION OF PERIOCULAR REGION WITH REDUCED REGION FOR AUTHENTICATION : ...cscpconf
Biometrics is science of measuring and statistically analyzing biological data. Biometric system establishes identity of a person based on unique physical or behavioral characteristic possessed by an individual. Behavioral biometrics measures characteristics which are acquired naturally over time. Physical biometrics measures inherent physical characteristics on an individual. Over the last few decades enormous attention is drawn towards ocular biometrics. Cues provided by ocular region have led to exploration of newer traits. Feasibility of periocular region as a useful biometric trait has been explored recently. With the promising results of preliminary examination, research towards periocular region is currently gaining lot of
prominence. Researchers have analyzed various techniques of feature extraction and classification in the periocular region. This paper investigates the effect of using Lower Central
Periocular Region (LCPR) for identification. The results obtained are comparable with those acquired for full periocular texture features with an advantage of reduced periocular area
An exploration of periocular region with reduced region for authentication re...csandit
Biometrics is science of measuring and statistically analyzing biological data. Biometric system
establishes identity of a person based on unique physical or behavioral characteristic possessed
by an individual. Behavioral biometrics measures characteristics which are acquired naturally
over time. Physical biometrics measures inherent physical characteristics on an individual.
Over the last few decades enormous attention is drawn towards ocular biometrics. Cues
provided by ocular region have led to exploration of newer traits. Feasibility of periocular
region as a useful biometric trait has been explored recently. With the promising results of
preliminary examination, research towards periocular region is currently gaining lot of
prominence. Researchers have analyzed various techniques of feature extraction and
classification in the periocular region. This paper investigates the effect of using Lower Central
Periocular Region (LCPR) for identification. The results obtained are comparable with those
acquired for full periocular texture features with an advantage of reduced periocular area.
This study evaluated the accuracy and reproducibility of linear measurements made on 3D digital models created with a surface laser scanner compared to direct measurements on dental casts.
Fifteen anatomic points were identified on 20 dental casts and their corresponding 3D digital models. Eleven linear measurements of arch width and length were made directly on each cast and digitally. There were no statistically significant differences found between the direct and digital measurements.
The study concluded that linear measurements of arch width and length on 3D digital models created with this particular surface laser scanner are accurate and reproducible compared to direct measurements on the original dental casts.
This study evaluated the influence of maxillary central incisor morphology on torque expression. Thirty extracted central incisors were evaluated using 2D surface scanning and 3D photographic modeling. The results showed that displacing the bracket 1-3mm incisally increased lingual root torque by an average of 2.27-8.96 degrees, while displacing it 1-3mm gingivally decreased torque by 5.01-12.33 degrees. The crown-root angle varied from 173-188.5 degrees between teeth. However, there was no significant correlation found between crown-root angle and labial surface convexity. These findings were confirmed by 3D analysis of one tooth.
This presentation gives a brief overview of the current intra oral scanner market as of October 2018. Comparisons of accuracy and a brief overview of some of the software packages available to allow you to go to guide.
360 Visualise: Last year 360 Visualise sold more CBCT in the UK than any other company. Our first scanning centre in Ilkley was the first independent CBCT referral centre outside of London and we now scan over 3000 patients each year. This experience gives us a unique insight into the clinical needs and processes of the dental profession and what can be achieved with new software packages.
New processes are quickly developing enabling implant dentists to quickly scan, plan and print implant drilling guides using third-party applications such as SMoP & BlueSkyBio. The price of these services has reduced dramatically over the past year and with increased competition is set to continue to improve and become more accurate and efficient.
Working with so many dentists and labs, 360 Visualise are in a unique position to support you and your 3D scanner as this incredible technology continues to evolve over the coming years.
IJERD (www.ijerd.com) International Journal of Engineering Research and Devel...IJERD Editor
This document describes a study that used collaborative tools and strategies between engineers and medical professionals to analyze root resorption during orthodontic treatment. Cone beam computed tomography scans were taken of patients' teeth before and after orthodontic treatment. The scans were imported into MIMICS software which was used to segment the teeth and isolate the roots. The root volumes were calculated and compared before and after treatment to statistically analyze changes. There was significant root volume loss observed, especially on the distal and palatal surfaces of lateral incisors and buccal surfaces of central incisors. The study highlights the benefits of collaboration between fields to integrate expertise and solve medical problems using advanced imaging and analysis techniques.
International Journal of Engineering Research and DevelopmentIJERD Editor
This document summarizes research applying the fuzzy c-means (FCM) technique to iris eye segmentation. FCM is used to segment 25 iris images from the iris region of interest. The accuracy of segmentation is evaluated using misclassification ratio (MCR) calculations at different FCM levels. Results show segmentation improves with increasing FCM levels, with blue irises showing clearer segmentation than other colors. MCR values decrease from 28.25% at FCM level 1 to 6.11% at FCM level 3 for one image, demonstrating increased segmentation accuracy with multiple applications of FCM.
Proposition of local automatic algorithm for landmark detection in 3D cephalo...journalBEEI
This study proposes a new contribution to solve the problem of automatic landmarks detection in three-dimensional cephalometry. 3D images obtained from CBCT (cone beam computed tomography) equipment were used for automatic identification of twelve landmarks. The proposed method is based on a local geometry and intensity criteria of skull structures. After the step of preprocessing and binarization, the algorithm segments the skull into three structures using the geometry information of nasal cavity and intensity information of the teeth. Each targeted landmark was detected using local geometrical information of the volume of interest containing this landmark. The ICC and confidence interval (95% CI) for each direction were 0, 91 (0.75 to 0.96) for x- direction; 0.92 (0.83 to 0.97) for y-direction; 0.92 (0.79 to 0.97) for z-direction. The mean error of detection was calculated using the Euclidian distance between the 3D coordinates of manually and automatically detected landmarks. The overall mean error of the algorithm was 2.76 mm with a standard deviation of 1.43 mm. Our proposed approach for automatic landmark identification in 3D cephalometric was capable of detecting 12 landmarks on 3D CBCT images which can be facilitate the use of 3D cephalometry to orthodontists.
IRJET- Dental Biometric Analysis of Human IdentificationIRJET Journal
This document presents a method for human identification using dental biometrics. It involves analyzing dental radiograph images through several image processing steps: pre-processing to enhance images, segmentation to isolate teeth, feature extraction using HOG, and classification/matching against a database. The method was tested on a dataset of 10 dental radiograph images with encouraging results. Dental biometrics is useful for identification in disasters when other biometrics may be degraded. The presented method aims to overcome limitations of existing dental-based identification systems and provide automated identification assistance to forensic experts.
Clinical accuracy outcome of open and closed trayimpressionsNavneet Randhawa
This study was a randomized controlled trial that compared the use of toluidine blue dye to a placebo for oral cancer screening among individuals with high-risk oral habits. Over 7,000 participants were randomized to either receive toluidine blue during their oral exam or a placebo. Examiners found a higher rate of positive initial screens in the toluidine blue group, but after referral to a pathologist, there was no significant difference in detection of oral premalignant lesions or non-premalignant lesions between the groups. No difference was found in oral cancer incidence rates over 5 years of follow-up. The study concluded that toluidine blue did not significantly improve detection of asymptomatic oral premalignant lesions compared to
This document summarizes research on designing and fabricating customized bone scaffolds for femur bones using 3D printing. The researchers used CT scan data of a femur bone in MIMICS software to create a 3D model. Four layers of the femur bone were selected to create customized scaffolds. Unit cell designs like double bend curves, S bend curves, U bend curves, and steps were created in SOLIDWORKS. Basic primitives like squares, hexagons, and octagons of different pore sizes and distances were used to design scaffold structures. 108 customized femur bone scaffolds were modeled and their porosities determined using MIMICS. Scaffolds with U bend curves and square primitives of 0.8mm pore
This document discusses bioprinting of osteochondral tissue, which contains both cartilage and bone regions. It outlines printing strategies using alginate hydrogel reinforced with PLA microfibers to mimic cartilage, and a PCL/HA scaffold to mimic bone's varying stiffness gradients. Mesenchymal stem cells would be seeded and differentiated into osteoblasts and chondrocytes. The objectives are to 3D print a scaffold that mimics the native tissue structure and gradients, and evaluate its ability to regenerate tissue in vivo. Challenges include fully mimicking the varying mechanical properties and spatial organization of the native tissue.
The presentation gives you an overview of the digital impression as well as intraoral scanners. Trios 3 of 3Shape was specifically discussed in the presentation.
Micro CT settings for caries detection: how to optimizeIJERA Editor
Some important items that can influence micro CT image were reviewed in this study. Different settings were
optimized for the assessment of early caries lesions. There are several researches on bone using micro CT but not
too much on dental hard tissues when assessing mineral loss. Different kinds of micro CT devices and
technologies are taking place today, each requiring unique settings, and this consists one of the greatest obstacles
for the use of micro CT on dental hard tissues. Achieving the settings for an ideal dental image is therefore a
challenge. The purpose of this study was to evaluate different micro CT settings to optimize the assessment of
early caries lesions aiming the integrity of the dental specimen thus, making possible to reuse it for further
studies. Three teeth with early caries lesions were submitted to different micro CT settings and different
reconstruction settings, aiming a better image. The final image was compared visually through different densities
and attenuation coefficients. The best setting for teeth tissues was achieved regarding contrast, definition, noise
reduction and the larger difference between sound enamel and early lesions attenuation coefficient.
Diagnosis of Vertical Root Fracture Using Digital Radiography, Helical Comput...iosrjce
IOSR Journal of Dental and Medical Sciences is one of the speciality Journal in Dental Science and Medical Science published by International Organization of Scientific Research (IOSR). The Journal publishes papers of the highest scientific merit and widest possible scope work in all areas related to medical and dental science. The Journal welcome review articles, leading medical and clinical research articles, technical notes, case reports and others.
This study compared dental measurements from conventional plaster models, digital models obtained by impression scanning, and plaster model scanning. Measurements of tooth size, arch width, and Bolton tooth size discrepancy were made on 25 patient models and repeated after 3 weeks. Measurements showed high correlation for all methods and measurement error was clinically acceptable. No significant differences were found between measurements from the three different model types. The results indicate that digital measurements from both impression scanning and plaster model scanning provide high accuracy and reliability for orthodontic analysis compared to conventional plaster models.
This study aimed to compare the accuracy and reliability of dental measurements (tooth sizes, arch widths, Bolton tooth size discrepancies) between conventional plaster models, digital models obtained by impression scanning, and plaster model scanning. Dental measurements were performed on plaster models, digital models from impression scanning, and plaster model scanning of 25 patients. Measurements were repeated after 3 weeks for each method and reliability was evaluated. Results found the repeated measurements were highly correlated for all methods, with measurement error within clinically acceptable limits. No significant differences were found between the three methods for any dental measurements. The study concluded digital measurements from both impression scanning and plaster model scanning showed high accuracy and reliability comparable to conventional plaster models.
This study investigated the effect of four types of pediatric medications (analgesics, antibiotics, anticonvulsants, multivitamins) on the color stability of two restorative materials (composite resins and glass ionomer cements). Specimens of each material were exposed to solutions of each medication type and color changes were measured. Statistical analysis found significant color changes in both materials exposed to analgesics and anticonvulsants compared to controls. Exposure to antibiotics and multivitamins did not significantly affect color. The study suggests certain pediatric medications can influence the color stability of tooth-colored restorations over time.
CBCT provides high resolution 3D imaging of the maxillofacial region using a low radiation cone-shaped x-ray beam. It acquires full volume data in a single 10 second scan, allowing visualization of hard and some soft tissues from multiple angles. CBCT has numerous applications in dentistry due to its improved accuracy over 2D imaging such as panoramic x-rays. It is useful for implant planning, maxillofacial surgery, orthodontics, temporomandibular joint assessment, trauma cases, and oral pathology diagnosis.
IJERD (www.ijerd.com) International Journal of Engineering Research and Devel...IJERD Editor
This document describes a study that used collaborative tools and strategies between engineers and medical professionals to analyze root resorption during orthodontic treatment. Cone beam computed tomography scans were taken of patients' teeth before and after orthodontic treatment. The scans were imported into MIMICS software which was used to segment the teeth and isolate the roots. The root volumes were calculated and compared before and after treatment to statistically analyze changes. There was significant root volume loss observed, especially on the distal and palatal surfaces of lateral incisors and buccal surfaces of central incisors. The study highlights the benefits of collaboration between fields to integrate expertise and solve orthodontic problems using 3D imaging and modeling tools.
IJERD (www.ijerd.com) International Journal of Engineering Research and Devel...IJERD Editor
This document describes a study that used collaborative tools and strategies between engineers and medical professionals to analyze root resorption during orthodontic treatment. Cone beam computed tomography scans were taken of 17 patient's teeth before and after orthodontic treatment. The scans were imported into MIMICS software which was used to segment the teeth and isolate the roots. The root volumes were calculated and compared before and after treatment to statistically analyze changes. There was significant root volume loss observed, especially on the distal and palatal surfaces of lateral incisors and buccal surfaces of central incisors. The study highlights the benefits of collaboration between fields to integrate expertise and solve orthodontic problems using 3D imaging and modeling software.
CBCT has many uses in orthodontics including for impacted teeth, root resorption, and boundary conditions. It provides more accurate 3D information than 2D imaging. CBCT is particularly useful for impacted or transposed teeth to localize them, for root resorption diagnosis, and to understand boundary conditions that may impact treatment planning. CBCT also has applications for craniofacial anomalies, TMJ assessment, and orthognathic surgery planning by providing detailed 3D visualization of structures.
190330 AI & cloud based medical/dental SW (KIST 김영준)Youngjun Kim
1) The document discusses various AI and cloud-based dental and medical software developed by the Korea Institute of Science and Technology, including tools for 3D modeling, surgical planning, landmark detection, segmentation, and disease diagnosis using deep learning.
2) Key technologies described include Boolean operations on 3D models, mesh repairing, offset surfaces, automated landmark detection on cephalograms, mandible segmentation, and using deep learning to diagnose rotator cuff tears on MRI with over 93% accuracy.
3) The tools are being commercialized and many were developed through collaborations with dental and medical universities to improve patient treatments.
20221026 implant LL - Association of prosthetic features and peri-implantitis...CurtisWeng1
1) The study analyzed the relationship between various prosthetic features and risk of peri-implantitis, based on clinical records of implant patients.
2) Key findings were that emergence profile angles over 30 degrees, convex emergence profiles, and implants splinted between adjacent implants (middle position) were associated with greater risk of peri-implantitis.
3) A predictive model suggested emergence angle, profile, and splinting position could help estimate peri-implantitis prevalence.
This study compared three different impression techniques for edentulous jaws using 3D analysis software: 1) a conventional open-mouth impression method (CI), 2) a novel closed-mouth impression method using a 3D printed tray (SI), and 3) a digital impression method using an intraoral scanner (DI). Impressions of 5 edentulous patients were taken using each method and scanned to measure differences. The SI method showed minimal differences from CI (<0.14mm) and was clinically effective for capturing supporting areas, while CI and DI showed no significant differences. The novel closed-mouth SI method requires fewer visits than conventional techniques.
International Journal of Engineering Research and DevelopmentIJERD Editor
This document summarizes research applying the fuzzy c-means (FCM) technique to iris eye segmentation. FCM is used to segment 25 iris images from the iris region of interest. The accuracy of segmentation is evaluated using misclassification ratio (MCR) calculations at different FCM levels. Results show segmentation improves with increasing FCM levels, with blue irises showing clearer segmentation than other colors. MCR values decrease from 28.25% at FCM level 1 to 6.11% at FCM level 3 for one image, demonstrating increased segmentation accuracy with multiple applications of FCM.
Proposition of local automatic algorithm for landmark detection in 3D cephalo...journalBEEI
This study proposes a new contribution to solve the problem of automatic landmarks detection in three-dimensional cephalometry. 3D images obtained from CBCT (cone beam computed tomography) equipment were used for automatic identification of twelve landmarks. The proposed method is based on a local geometry and intensity criteria of skull structures. After the step of preprocessing and binarization, the algorithm segments the skull into three structures using the geometry information of nasal cavity and intensity information of the teeth. Each targeted landmark was detected using local geometrical information of the volume of interest containing this landmark. The ICC and confidence interval (95% CI) for each direction were 0, 91 (0.75 to 0.96) for x- direction; 0.92 (0.83 to 0.97) for y-direction; 0.92 (0.79 to 0.97) for z-direction. The mean error of detection was calculated using the Euclidian distance between the 3D coordinates of manually and automatically detected landmarks. The overall mean error of the algorithm was 2.76 mm with a standard deviation of 1.43 mm. Our proposed approach for automatic landmark identification in 3D cephalometric was capable of detecting 12 landmarks on 3D CBCT images which can be facilitate the use of 3D cephalometry to orthodontists.
IRJET- Dental Biometric Analysis of Human IdentificationIRJET Journal
This document presents a method for human identification using dental biometrics. It involves analyzing dental radiograph images through several image processing steps: pre-processing to enhance images, segmentation to isolate teeth, feature extraction using HOG, and classification/matching against a database. The method was tested on a dataset of 10 dental radiograph images with encouraging results. Dental biometrics is useful for identification in disasters when other biometrics may be degraded. The presented method aims to overcome limitations of existing dental-based identification systems and provide automated identification assistance to forensic experts.
Clinical accuracy outcome of open and closed trayimpressionsNavneet Randhawa
This study was a randomized controlled trial that compared the use of toluidine blue dye to a placebo for oral cancer screening among individuals with high-risk oral habits. Over 7,000 participants were randomized to either receive toluidine blue during their oral exam or a placebo. Examiners found a higher rate of positive initial screens in the toluidine blue group, but after referral to a pathologist, there was no significant difference in detection of oral premalignant lesions or non-premalignant lesions between the groups. No difference was found in oral cancer incidence rates over 5 years of follow-up. The study concluded that toluidine blue did not significantly improve detection of asymptomatic oral premalignant lesions compared to
This document summarizes research on designing and fabricating customized bone scaffolds for femur bones using 3D printing. The researchers used CT scan data of a femur bone in MIMICS software to create a 3D model. Four layers of the femur bone were selected to create customized scaffolds. Unit cell designs like double bend curves, S bend curves, U bend curves, and steps were created in SOLIDWORKS. Basic primitives like squares, hexagons, and octagons of different pore sizes and distances were used to design scaffold structures. 108 customized femur bone scaffolds were modeled and their porosities determined using MIMICS. Scaffolds with U bend curves and square primitives of 0.8mm pore
This document discusses bioprinting of osteochondral tissue, which contains both cartilage and bone regions. It outlines printing strategies using alginate hydrogel reinforced with PLA microfibers to mimic cartilage, and a PCL/HA scaffold to mimic bone's varying stiffness gradients. Mesenchymal stem cells would be seeded and differentiated into osteoblasts and chondrocytes. The objectives are to 3D print a scaffold that mimics the native tissue structure and gradients, and evaluate its ability to regenerate tissue in vivo. Challenges include fully mimicking the varying mechanical properties and spatial organization of the native tissue.
The presentation gives you an overview of the digital impression as well as intraoral scanners. Trios 3 of 3Shape was specifically discussed in the presentation.
Micro CT settings for caries detection: how to optimizeIJERA Editor
Some important items that can influence micro CT image were reviewed in this study. Different settings were
optimized for the assessment of early caries lesions. There are several researches on bone using micro CT but not
too much on dental hard tissues when assessing mineral loss. Different kinds of micro CT devices and
technologies are taking place today, each requiring unique settings, and this consists one of the greatest obstacles
for the use of micro CT on dental hard tissues. Achieving the settings for an ideal dental image is therefore a
challenge. The purpose of this study was to evaluate different micro CT settings to optimize the assessment of
early caries lesions aiming the integrity of the dental specimen thus, making possible to reuse it for further
studies. Three teeth with early caries lesions were submitted to different micro CT settings and different
reconstruction settings, aiming a better image. The final image was compared visually through different densities
and attenuation coefficients. The best setting for teeth tissues was achieved regarding contrast, definition, noise
reduction and the larger difference between sound enamel and early lesions attenuation coefficient.
Diagnosis of Vertical Root Fracture Using Digital Radiography, Helical Comput...iosrjce
IOSR Journal of Dental and Medical Sciences is one of the speciality Journal in Dental Science and Medical Science published by International Organization of Scientific Research (IOSR). The Journal publishes papers of the highest scientific merit and widest possible scope work in all areas related to medical and dental science. The Journal welcome review articles, leading medical and clinical research articles, technical notes, case reports and others.
This study compared dental measurements from conventional plaster models, digital models obtained by impression scanning, and plaster model scanning. Measurements of tooth size, arch width, and Bolton tooth size discrepancy were made on 25 patient models and repeated after 3 weeks. Measurements showed high correlation for all methods and measurement error was clinically acceptable. No significant differences were found between measurements from the three different model types. The results indicate that digital measurements from both impression scanning and plaster model scanning provide high accuracy and reliability for orthodontic analysis compared to conventional plaster models.
This study aimed to compare the accuracy and reliability of dental measurements (tooth sizes, arch widths, Bolton tooth size discrepancies) between conventional plaster models, digital models obtained by impression scanning, and plaster model scanning. Dental measurements were performed on plaster models, digital models from impression scanning, and plaster model scanning of 25 patients. Measurements were repeated after 3 weeks for each method and reliability was evaluated. Results found the repeated measurements were highly correlated for all methods, with measurement error within clinically acceptable limits. No significant differences were found between the three methods for any dental measurements. The study concluded digital measurements from both impression scanning and plaster model scanning showed high accuracy and reliability comparable to conventional plaster models.
This study investigated the effect of four types of pediatric medications (analgesics, antibiotics, anticonvulsants, multivitamins) on the color stability of two restorative materials (composite resins and glass ionomer cements). Specimens of each material were exposed to solutions of each medication type and color changes were measured. Statistical analysis found significant color changes in both materials exposed to analgesics and anticonvulsants compared to controls. Exposure to antibiotics and multivitamins did not significantly affect color. The study suggests certain pediatric medications can influence the color stability of tooth-colored restorations over time.
CBCT provides high resolution 3D imaging of the maxillofacial region using a low radiation cone-shaped x-ray beam. It acquires full volume data in a single 10 second scan, allowing visualization of hard and some soft tissues from multiple angles. CBCT has numerous applications in dentistry due to its improved accuracy over 2D imaging such as panoramic x-rays. It is useful for implant planning, maxillofacial surgery, orthodontics, temporomandibular joint assessment, trauma cases, and oral pathology diagnosis.
IJERD (www.ijerd.com) International Journal of Engineering Research and Devel...IJERD Editor
This document describes a study that used collaborative tools and strategies between engineers and medical professionals to analyze root resorption during orthodontic treatment. Cone beam computed tomography scans were taken of patients' teeth before and after orthodontic treatment. The scans were imported into MIMICS software which was used to segment the teeth and isolate the roots. The root volumes were calculated and compared before and after treatment to statistically analyze changes. There was significant root volume loss observed, especially on the distal and palatal surfaces of lateral incisors and buccal surfaces of central incisors. The study highlights the benefits of collaboration between fields to integrate expertise and solve orthodontic problems using 3D imaging and modeling tools.
IJERD (www.ijerd.com) International Journal of Engineering Research and Devel...IJERD Editor
This document describes a study that used collaborative tools and strategies between engineers and medical professionals to analyze root resorption during orthodontic treatment. Cone beam computed tomography scans were taken of 17 patient's teeth before and after orthodontic treatment. The scans were imported into MIMICS software which was used to segment the teeth and isolate the roots. The root volumes were calculated and compared before and after treatment to statistically analyze changes. There was significant root volume loss observed, especially on the distal and palatal surfaces of lateral incisors and buccal surfaces of central incisors. The study highlights the benefits of collaboration between fields to integrate expertise and solve orthodontic problems using 3D imaging and modeling software.
CBCT has many uses in orthodontics including for impacted teeth, root resorption, and boundary conditions. It provides more accurate 3D information than 2D imaging. CBCT is particularly useful for impacted or transposed teeth to localize them, for root resorption diagnosis, and to understand boundary conditions that may impact treatment planning. CBCT also has applications for craniofacial anomalies, TMJ assessment, and orthognathic surgery planning by providing detailed 3D visualization of structures.
190330 AI & cloud based medical/dental SW (KIST 김영준)Youngjun Kim
1) The document discusses various AI and cloud-based dental and medical software developed by the Korea Institute of Science and Technology, including tools for 3D modeling, surgical planning, landmark detection, segmentation, and disease diagnosis using deep learning.
2) Key technologies described include Boolean operations on 3D models, mesh repairing, offset surfaces, automated landmark detection on cephalograms, mandible segmentation, and using deep learning to diagnose rotator cuff tears on MRI with over 93% accuracy.
3) The tools are being commercialized and many were developed through collaborations with dental and medical universities to improve patient treatments.
20221026 implant LL - Association of prosthetic features and peri-implantitis...CurtisWeng1
1) The study analyzed the relationship between various prosthetic features and risk of peri-implantitis, based on clinical records of implant patients.
2) Key findings were that emergence profile angles over 30 degrees, convex emergence profiles, and implants splinted between adjacent implants (middle position) were associated with greater risk of peri-implantitis.
3) A predictive model suggested emergence angle, profile, and splinting position could help estimate peri-implantitis prevalence.
This study compared three different impression techniques for edentulous jaws using 3D analysis software: 1) a conventional open-mouth impression method (CI), 2) a novel closed-mouth impression method using a 3D printed tray (SI), and 3) a digital impression method using an intraoral scanner (DI). Impressions of 5 edentulous patients were taken using each method and scanned to measure differences. The SI method showed minimal differences from CI (<0.14mm) and was clinically effective for capturing supporting areas, while CI and DI showed no significant differences. The novel closed-mouth SI method requires fewer visits than conventional techniques.
This document summarizes research on using adhesively fixed reference points for surgical navigation and robotic surgery. Three reference marker models with varying resolutions, thresholds, and wraps were 3D printed and their accuracy was tested. The mean accuracy of each marker ranged from 0.18mm to 0.54mm compared to optimal placement. Compared to accepted errors in spine surgery (<2mm), the markers increased accuracy between 18-91%. Axially, all results were within safety thresholds. Even without adhesive, the markers showed better accuracy than current methods. Improved accuracy could be achieved with a better adhesive and more precise 3D printer. The markers could reduce reliance on surgeon expertise and radiation exposure in surgery.
International Journal of Engineering Research and DevelopmentIJERD Editor
Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
Automation and Mechatronics Engineering,
Material and Chemical Engineering,
Civil and Architecture Engineering,
Biotechnology and Bio Engineering,
Environmental Engineering,
Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
This study evaluated the use of an Accutome AccuPach VI pachymetry system to measure corneal thickness in cynomolgus monkeys. The system showed good intra-run precision between 5.3-6.9% and inter-run precision between 1.5-1.9%. Measurements also showed high concordance between technicians of 97.9-98.3%. The mean corneal thickness measurements of 411.3-418.7 μm were within the normal expected range for cynomolgus monkeys using ultrasound pachymetry. The pachymetry system was determined to be valid for measuring corneal thickness in cynomolgus monkeys based on the precision and accuracy of the measurements obtained.
CBCT has become an important tool in clinical orthodontics for providing 3D information. It was developed due to increasing demand for 3D data from conventional CT scans. This article discusses CBCT technology and its various uses in orthodontics such as detection of facial asymmetry, assessment of mandibular shape and growth, localization of impacted teeth, evaluation of root resorption and airway changes. CBCT allows more accurate diagnosis and treatment planning compared to 2D radiographs and has largely replaced conventional records in digital orthodontic records.
1) The study assessed the reliability of panoramic radiographs in determining the relationship between impacted mandibular third molars and the mandibular canal by comparing panoramic findings to CBCT scans.
2) Panoramic radiographic markers such as interrupted white lines and darkened tooth roots were statistically associated with direct contact between teeth and the mandibular canal as seen on CBCT.
3) Horizontal and mesioangular impactions showed the strongest association with direct contact between teeth and the mandibular canal, increasing the risk of nerve injury during extraction.
This document discusses the 3D modeling of the knee joint using CT/MRI scan data and MIMICS software for the purpose of designing a custom knee implant. Key steps included segmenting the distal femur and proximal tibia from images, creating a 3D surface model, and designing a knee implant using reverse engineering that precisely matches the patient's bone geometry. The custom implant was found to mimic the natural curvature of the knee joint better than standard implants, allowing for more natural motion. Accuracy was improved over previous CAD models by using medical images and accounting for variability in bone density across different regions.
Similar to CS 3600 Trueness and Precision Study with Dr. Mangano (20)
Summer is a time for fun in the sun, but the heat and humidity can also wreak havoc on your skin. From itchy rashes to unwanted pigmentation, several skin conditions become more prevalent during these warmer months.
Giloy in Ayurveda - Classical Categorization and SynonymsPlanet Ayurveda
Giloy, also known as Guduchi or Amrita in classical Ayurvedic texts, is a revered herb renowned for its myriad health benefits. It is categorized as a Rasayana, meaning it has rejuvenating properties that enhance vitality and longevity. Giloy is celebrated for its ability to boost the immune system, detoxify the body, and promote overall wellness. Its anti-inflammatory, antipyretic, and antioxidant properties make it a staple in managing conditions like fever, diabetes, and stress. The versatility and efficacy of Giloy in supporting health naturally highlight its importance in Ayurveda. At Planet Ayurveda, we provide a comprehensive range of health services and 100% herbal supplements that harness the power of natural ingredients like Giloy. Our products are globally available and affordable, ensuring that everyone can benefit from the ancient wisdom of Ayurveda. If you or your loved ones are dealing with health issues, contact Planet Ayurveda at 01725214040 to book an online video consultation with our professional doctors. Let us help you achieve optimal health and wellness naturally.
“Psychiatry and the Humanities”: An Innovative Course at the University of Mo...Université de Montréal
“Psychiatry and the Humanities”: An Innovative Course at the University of Montreal Expanding the medical model to embrace the humanities. Link: https://www.psychiatrictimes.com/view/-psychiatry-and-the-humanities-an-innovative-course-at-the-university-of-montreal
Pictorial and detailed description of patellar instability with sign and symptoms and how to diagnose , what investigations you should go with and how to approach with treatment options . I have presented this slide in my 2nd year junior residency in orthopedics at LLRM medical college Meerut and got good reviews for it
After getting it read you will definitely understand the topic.
Travel Clinic Cardiff: Health Advice for International TravelersNX Healthcare
Travel Clinic Cardiff offers comprehensive travel health services, including vaccinations, travel advice, and preventive care for international travelers. Our expert team ensures you are well-prepared and protected for your journey, providing personalized consultations tailored to your destination. Conveniently located in Cardiff, we help you travel with confidence and peace of mind. Visit us: www.nxhealthcare.co.uk
- Video recording of this lecture in English language: https://youtu.be/Pt1nA32sdHQ
- Video recording of this lecture in Arabic language: https://youtu.be/uFdc9F0rlP0
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- Link to NephroTube social media accounts: https://nephrotube.blogspot.com/p/join-nephrotube-on-social-media.html
5-hydroxytryptamine or 5-HT or Serotonin is a neurotransmitter that serves a range of roles in the human body. It is sometimes referred to as the happy chemical since it promotes overall well-being and happiness.
It is mostly found in the brain, intestines, and blood platelets.
5-HT is utilised to transport messages between nerve cells, is known to be involved in smooth muscle contraction, and adds to overall well-being and pleasure, among other benefits. 5-HT regulates the body's sleep-wake cycles and internal clock by acting as a precursor to melatonin.
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These lecture slides, by Dr Sidra Arshad, offer a simplified look into the mechanisms involved in the regulation of respiration:
Learning objectives:
1. Describe the organisation of respiratory center
2. Describe the nervous control of inspiration and respiratory rhythm
3. Describe the functions of the dorsal and respiratory groups of neurons
4. Describe the influences of the Pneumotaxic and Apneustic centers
5. Explain the role of Hering-Breur inflation reflex in regulation of inspiration
6. Explain the role of central chemoreceptors in regulation of respiration
7. Explain the role of peripheral chemoreceptors in regulation of respiration
8. Explain the regulation of respiration during exercise
9. Integrate the respiratory regulatory mechanisms
10. Describe the Cheyne-Stokes breathing
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1. Chapter 42, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 36, Ganong’s Review of Medical Physiology, 26th edition
3. Chapter 13, Human Physiology by Lauralee Sherwood, 9th edition
NAVIGATING THE HORIZONS OF TIME LAPSE EMBRYO MONITORING.pdfRahul Sen
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STUDIES IN SUPPORT OF SPECIAL POPULATIONS: GERIATRICS E7shruti jagirdar
Unit 4: MRA 103T Regulatory affairs
This guideline is directed principally toward new Molecular Entities that are
likely to have significant use in the elderly, either because the disease intended
to be treated is characteristically a disease of aging ( e.g., Alzheimer's disease) or
because the population to be treated is known to include substantial numbers of
geriatric patients (e.g., hypertension).
2. Overview
Article Name
“Trueness and precision of 5 intraoral scanners in the impressions
of single and multiple implants: a comparative in vitro study”
Authors
Francesco Guido Mangano, Uli Hauschild, Giovanni Veronesi,
Mario Imburgia, Carlo Mangano, and Oleg Admakin
Date Published
6 June 2019
Background
Very few peer reviewed studies have evaluated the clinical
efficacy of intraoral scanners in implantology.
Even fewer studies compare the accuracy of the various intraoral
scanners.
This study compares the trueness and precision of five intraoral
scanners, and determines which have both accurate and
consistent results.
2
3. What are Trueness and Precision?
In this study:
Trueness is quantified by distances between generated model and
reference model (smaller value means better trueness).
Precision is quantified by distances between repeatedly generated
models (smaller value means better precision).
Accuracy is a combination of trueness and precision. An intraoral
scanner must perform well in both trueness and precision tests to
be considered “highly accurate.”
3
4. Study Material and Methods
4
10 scans were performed by a single digital dentistry expert per indication per intraoral scanner device
with a zig-zag technique in the same environmental conditions.
2 reference maxillary plaster models were used:
‒ A: Partially edentulous maxillary arch with:
‒ Implant analog on tooth #23 (implant single support crown simulation)
‒ Implant analog on teeth #14 & 16 (partial implant supported case simulation)
‒ B: Totally edentulous maxillary arch:
‒ Implant analog on teeth #11, 14, 16, 21, 24 & 26 (fixed full arch implant supported denture
simulation)
Scanbodies used : Megagen® PEEK scanbodies to enhance scans (no light reflection).
Reference : 3 scans made per indication with Freedom UHD ® desktop scanner and superimposed in Geomagic Studio
2012® to validate the reference models.
5. Implantology IOS Comparative Study
How do these intraoral scanners compare in accuracy?
5
TRIOS 3
EMERALD
DWIO
CS 3600
OMNICAM
Mangano F, Logozzo S, Hauschild U, Veronesi G, Imburgia M, Mangano C, Admakin O. June 6, 2019. Trueness and precision of 5 intraoral scanners
in the impressions of single and multiple implants: a comparative in vitro study. BMC Oral Health. 19(101): DOI 10.1186/s12903-019-0792-7
6. Implantology IOS Comparative Study
Summary of 5 intraoral scanners used in the study
6
Scanner Producer Technology of
Acquisition
Powder Color System
CS 3600 Carestream
Dental,
Atlanta, Georgia, USA
Structured light-Active
Speed 3D Video™
No Yes Proprietary files (CSZ), but
also open formats (PLY, STL)
immediately available
Trios 3 3-Shape,
Copenhagen,
Denmark
Structured light –
Confocal
microscopy and Ultrafast
Optical Scanning™
No Yes Proprietary files (DCM)
available, but possibility to
export STL files via the
new Trios on Dental
Desktop®
Omnicam Dentsply-Sirona,
York, Pennsylvania,
USA
Structured light -Optical
triangulation and confocal
microscopy
No Yes Proprietary files (CS3, SDT,
CDT, IDT) are available,
possible to export STL files
via the Cerec Connect®
DWIO Dentalwings,
Montreal, Quebec,
Canada
Blue laser-Multiscan
Imaging™ technology
No No Proprietary files (XORDER),
but also open formats (STL)
immediately available
Emerald Planmeca,
Helsinki, Finland
Red, green and blue
lasers-Projected Pattern
Triangulation™
No Yes Open formats (PLY, STL)
immediately available
Mangano F, Logozzo S, Hauschild U, Veronesi G, Imburgia M, Mangano C, Admakin O. June 6, 2019. Trueness and precision of 5 intraoral scanners
in the impressions of single and multiple implants: a comparative in vitro study. BMC Oral Health. 19(101): DOI 10.1186/s12903-019-0792-7
7. Single Crown, Best Result in Trueness (μM)
7
Deviation: 22 μm (20)
Triangles: 179,496
Deviation: 14 μm (13)
Triangles: 34,980
Deviation: 31 μm (26)
Triangles: 81,712
Deviation: 23 μm (21)
Triangles: 68,281
Deviation: 21 μm (28)
Triangles: 123,417
TRIOS 3 CS 3600 EMERALD DWIO OMNICAM
Best Result
[Carestream Dental Note: Triangle number is not a measure of acquisition resolution or
mesh quality. In fact, in having the best trueness with the smallest number of triangles, CS
3600 demonstrates the most efficient/optimal mesh generation (by placing more triangles in
areas with more details and vice versa), with minimized mesh file size while maintaining
accuracy.]
Single crown: best result in trueness (standard deviation) in μm, for the 5 examined
scanners, and the number of triangles composing each mesh.
Mangano F, Logozzo S, Hauschild U, Veronesi G, Imburgia M, Mangano C, Admakin O. June 6, 2019. Trueness and precision of 5 intraoral scanners
in the impressions of single and multiple implants: a comparative in vitro study. BMC Oral Health. 19(101): DOI 10.1186/s12903-019-0792-7
8. Partial Prosthesis, Best Result in Trueness (μM)
8
Deviation: 28 μm (24)
Triangles: 207,159
Deviation: 21 μm (25)
Triangles: 55,968
Deviation: 42 μm (32)
Triangles: 113,162
Deviation: 39 μm (39)
Triangles: 135,028
Deviation: 29 μm (32)
Triangles: 192,967
8
TRIOS 3 CS 3600 EMERALD DWIO OMNICAM
Best Result
Partial prosthesis: best result in trueness (standard deviation) in μm, for the 5 examined
scanners, and the number of triangles composing each mesh.
Mangano F, Logozzo S, Hauschild U, Veronesi G, Imburgia M, Mangano C, Admakin O. June 6, 2019. Trueness and precision of 5 intraoral scanners
in the impressions of single and multiple implants: a comparative in vitro study. BMC Oral Health. 19(101): DOI 10.1186/s12903-019-0792-7
[Carestream Dental Note: Triangle number is not a measure of acquisition resolution or
mesh quality. In fact, in having the best trueness with the smallest number of triangles, CS
3600 demonstrates the most efficient/optimal mesh generation (by placing more triangles in
areas with more details and vice versa), with minimized mesh file size while maintaining
accuracy.]
9. Full Arch, Best Result in Trueness (μM)
9
Deviation: 37 μm (44)
Triangles: 326,696
Deviation: 32 μm (49)
Triangles: 83,735
Deviation: 57 μm (58)
Triangles: 178,507
Deviation: 73 μm (64)
Triangles: 227, 491
Deviation: 47 μm (55)
Triangles: 322,929
9
TRIOS 3 CS 3600 EMERALD DWIO OMNICAM
Best Result
Full arch: best result in trueness (standard deviation) in μm, for the 5 examined
scanners, and the number of triangles composing each mesh.
Mangano F, Logozzo S, Hauschild U, Veronesi G, Imburgia M, Mangano C, Admakin O. June 6, 2019. Trueness and precision of 5 intraoral scanners
in the impressions of single and multiple implants: a comparative in vitro study. BMC Oral Health. 19(101): DOI 10.1186/s12903-019-0792-7
[Carestream Dental Note: Triangle number is not a measure of acquisition resolution or
mesh quality. In fact, in having the best trueness with the smallest number of triangles, CS
3600 demonstrates the most efficient/optimal mesh generation (by placing more triangles in
areas with more details and vice versa), with minimized mesh file size while maintaining
accuracy.]
10. Mean Trueness/Standard Deviation
Scanner Single Crown
Mean ± SD
Partial Prosthesis
Mean ± SD
Full Arch
Mean ± SD
p-value1
Trios 3
22.3 ± 0.5† 28.5 ± 0.5†,‡,• 46.3 ± 4.9†,‡,• <.0001
CS 3600
15.2 ± 0.8‡,#,§ 23.0 ± 1.1^,§,# 44.9 ± 8.9^,§,# <.0001
Emerald
43.1 ± 11.5†,‡,•,^ 49.3 ± 5.5†,^,° 66.3 ± 5.6†,^,° <.0001
DWIO
27.8±3.2#,• 49.8±5.0‡,§,* 92.1±24.1‡,§,°,* <.0001
Omnicam
28.4±4.5§,^ 38.1±8.8•,#,°,* 70.4±11.9•,#,* <.0001
1
0
The same symbol after SD indicates differences in trueness between scanner pairs (Tukey-adjustment for multiple comparison). Minimum
significant difference across scanners: 7.3μm, 6.6μm, 16.8μm for single crown (SC), partial prosthesis (PP) and full arch (FA), respectively. 1p-
value testing the interaction between scanner and context (SC vs. PP vs. FA) from non-parametric, Kruskall-Wallis test. A p-value >0.05
indicates no difference in scanner trueness according to the context.
Best Result
Mangano F, Logozzo S, Hauschild U, Veronesi G, Imburgia M, Mangano C, Admakin O. June 6, 2019. Trueness and precision of 5 intraoral scanners
in the impressions of single and multiple implants: a comparative in vitro study. BMC Oral Health. 19(101): DOI 10.1186/s12903-019-0792-7
11. Colorimetric Trueness Map Comparison
11
TRIOS 3 CS 3600 EMERALD DWIO OMNICAM
+0.100 mm
+0.088 mm
+0.077 mm
+0.065 mm
+0.053 mm
+0.042 mm
+0.030 mm
-0.030 mm
-0.042 mm
-0.053 mm
-0.065 mm
-0.077 mm
-0.088 mm
-0.100 mm
Best Result
Trueness in the single crown (SC), partial prosthesis (PP) and full-arch (FA) with the 5 examined intraoral scanners (IOSs): colorimetric maps.
The color maps indicated inward (blue) or outward (red) displacement between overlaid structures, whereas a minimal change was indicated by
a green color. For all three models (SC, PP, FA): the color scale ranged from a maximum deviation of +100μm and−100μm, with the best result
given by the deviations comprised between +30μm and−30μm (green color).
Mangano F, Logozzo S, Hauschild U, Veronesi G, Imburgia M, Mangano C, Admakin O. June 6, 2019. Trueness and precision of 5 intraoral scanners
in the impressions of single and multiple implants: a comparative in vitro study. BMC Oral Health. 19(101): DOI 10.1186/s12903-019-0792-7
12. Changes in Mean Trueness
Comparison
Changes in mean trueness (standard deviation), in μm, for the 5 examined
scanners, in the different applications (single crown, SC vs. partial prosthesis, PP
vs. full-arch, FA).
12
Mangano F, Logozzo S, Hauschild U, Veronesi G, Imburgia M, Mangano C, Admakin O. June 6, 2019. Trueness and precision of 5 intraoral scanners
in the impressions of single and multiple implants: a comparative in vitro study. BMC Oral Health. 19(101): DOI 10.1186/s12903-019-0792-7
CS 3600
13. Mean Precision/Standard Deviation
Scanner Single Crown
Mean ± SD
Partial Prosthesis
Mean ± SD
Full Arch
Mean ± SD
p-value1
Trios 3
15.2 ± 0.8†,‡,• 21.0 ± 1.9‡,• 35.6 ± 3.4†,‡,• <.0001
CS 3600
11.3 ± 1.1^,§,# 17.0 ± 2.3^,§,# 35.7 ± 4.3^,§,# <.0001
Emerald 32.8 ± 10.7†,^ 29.9 ± 8.9^,° 61.5 ± 18.1†,^,°,* 0.0007
DWIO 27.1 ± 10.7‡,§ 34.8 ± 10.8‡,§ 111.0 ± 24.8‡,§,°,ç <.0001
Omnicam
30.6 ± 3.3•,# 43.2 ± 9.4•,#,° 89.3 ± 14.0•,#,*,ç <.0001
1
3
The same symbol after SD indicates differences in precision between scanner pairs (Tukey-adjustment for multiple comparison). Minimum
significant difference across scanners: 8.8 μm, 9.8 μm, 19.4 μm for single crown (SC), partial prosthesis (PP) and full arch (FA), respectively.
1p-value testing the interaction between scanner and context (SC vs. PP vs. FA) from non-parametric, Kruskall-Wallis test. A p-value > 0.05
indicates no difference in scanner precision according to the context.
Best Result Very closely follows
best result
Mangano F, Logozzo S, Hauschild U, Veronesi G, Imburgia M, Mangano C, Admakin O. June 6, 2019. Trueness and precision of 5 intraoral scanners
in the impressions of single and multiple implants: a comparative in vitro study. BMC Oral Health. 19(101): DOI 10.1186/s12903-019-0792-7
14. Colorimetric Precision Map Comparison
14
Very Close to
Best Results
TRIOS 3 CS 3600 EMERALD DWIO OMNICAM
Best Result
Trueness in the single crown (SC), partial prosthesis (PP) and full-arch (FA) with the 5 examined intraoral scanners (IOSs): colorimetric maps.
The color maps indicated inward (blue) or outward (red) displacement between overlaid structures, whereas a minimal change was indicated by
a green color. For all three models (SC, PP, FA): the color scale ranged from a maximum deviation of +100μm and−100μm, with the best result
given by the deviations comprised between +30μm and−30μm (green color).
+0.100 mm
+0.088 mm
+0.077 mm
+0.065 mm
+0.053 mm
+0.042 mm
+0.030 mm
-0.030 mm
-0.042 mm
-0.053 mm
-0.065 mm
-0.077 mm
-0.088 mm
-0.100 mm
Mangano F, Logozzo S, Hauschild U, Veronesi G, Imburgia M, Mangano C, Admakin O. June 6, 2019. Trueness and precision of 5 intraoral scanners
in the impressions of single and multiple implants: a comparative in vitro study. BMC Oral Health. 19(101): DOI 10.1186/s12903-019-0792-7
15. Changes in Mean Precision
Comparison
Changes in mean precision (standard deviation), in μm, for the 5 examined scanners, in the different applications (single crown
vs. partial prosthesis vs. full-arch)
15
CS 3600
Mangano F, Logozzo S, Hauschild U, Veronesi G, Imburgia M, Mangano C, Admakin O. June 6, 2019. Trueness and precision of 5 intraoral scanners
in the impressions of single and multiple implants: a comparative in vitro study. BMC Oral Health. 19(101): DOI 10.1186/s12903-019-0792-7
CS 3600
16. Results Summary
Single Crown:
CS 3600 had the best trueness (15.2 ± 0.8 μm) and the best precision (11.3 ± 1.1 μm)
Partial Prosthesis
CS 3600 had the best trueness (23 ± 1.1 μm) and the best precision(17 ± 2.3 μm)
Full Arch
CS 3600 had the best trueness (44.9 ± 8.9 μm)
Trios3 had the best precision (35.6 ± 3.4 μm), followed very closely by CS 3600 (35.7
± 4.3 μm)
16
Mangano F, Logozzo S, Hauschild U, Veronesi G, Imburgia M, Mangano C, Admakin O. June 6, 2019. Trueness and precision of 5 intraoral scanners
in the impressions of single and multiple implants: a comparative in vitro study. BMC Oral Health. 19(101): DOI 10.1186/s12903-019-0792-7