scholarly journals Automated Caries Detection using a 3D Intraoral Scanner. An in Vivo Validation Study

Author(s):  
Stavroula Michou ◽  
Mathias S. Lambach ◽  
Panagiotis Ntovas ◽  
Ana R. Benetti ◽  
Azam Bakhshandeh ◽  
...  

Abstract The use of 3D intraoral scanners (IOS) and software that can support automated detection and objective monitoring of oral diseases such as caries, tooth wear or periodontal diseases is increasingly receiving attention from researchers and industry. This study clinically validates an automated caries scoring system for occlusal caries detection and classification, previously developed for an IOS system featuring fluorescence (TRIOS 4, 3Shape TRIOS A/S, Denmark). Four algorithms (ALG1, ALG2, ALG3, ALG4) are assessed for the IOS; the first three are based only on fluorescence information, while ALG4 also takes into account the tooth color information. The diagnostic performance of these automated algorithms is compared with the diagnostic performance of the clinical visual examination, while histological assessment is used as reference. Additionally, possible differences between in vitro and in vivo diagnostic performance of the IOS system are investigated. The algorithms show comparable in vivo diagnostic performance to the visual examination. Only minor differences between their in vitro and in vivo diagnostic performance are noted. This novel IOS system exhibits encouraging performance for clinical application on occlusal caries detection and classification. Different approaches can be investigated for possible optimization of the system.

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Stavroula Michou ◽  
Mathias S. Lambach ◽  
Panagiotis Ntovas ◽  
Ana R. Benetti ◽  
Azam Bakhshandeh ◽  
...  

AbstractThe use of 3D intraoral scanners (IOS) and software that can support automated detection and objective monitoring of oral diseases such as caries, tooth wear or periodontal diseases, is increasingly receiving attention from researchers and industry. This study clinically validates an automated caries scoring system for occlusal caries detection and classification, previously defined for an IOS system featuring fluorescence (TRIOS 4, 3Shape TRIOS A/S, Denmark). Four algorithms (ALG1, ALG2, ALG3, ALG4) are assessed for the IOS; the first three are based only on fluorescence information, while ALG4 also takes into account the tooth color information. The diagnostic performance of these automated algorithms is compared with the diagnostic performance of the clinical visual examination, while histological assessment is used as reference. Additionally, possible differences between in vitro and in vivo diagnostic performance of the IOS system are investigated. The algorithms show comparable in vivo diagnostic performance to the visual examination with no significant difference in the area under the ROC curves ($$p>0.05$$ p > 0.05 ). Only minor differences between their in vitro and in vivo diagnostic performance are noted but no significant differences in the area under the ROC curves, ($$p>0.05$$ p > 0.05 ). This novel IOS system exhibits encouraging performance for clinical application on occlusal caries detection and classification. Different approaches can be investigated for possible optimization of the system.


2008 ◽  
Vol 24 (3) ◽  
pp. 295-300 ◽  
Author(s):  
Michele Baffi Diniz ◽  
Jonas de Almeida Rodrigues ◽  
Andréia Bolzan de Paula ◽  
Rita de Cássia Loiola Cordeiro

2017 ◽  
Vol 7 (2) ◽  
pp. 77-81
Author(s):  
Beste Inceoglu ◽  
Sebahat Gorgun ◽  
Halil T Yuksel ◽  
Emine S Kursun ◽  
Hakan Eren

ABSTRACT Introduction The detection of carious lesions in the initial stages of development is very important to prevent the occurrence of cavitation. Visual examination and the use of a dental probe, bite-wing radiography, and fiberoptic transillumination (FOTI) have long been recommended for this purpose. Visual examination and probing of suspected lesions are useful for detecting occlusal caries, but achieve no gain of sensitivity and might cause irreversible tooth damage. Bite-wing radiography helps to detect approximal lesions better than clinical examination and probing the lesion. But the diagnostic performance of bite-wing radiography at approximal and occlusal sites is different. The FOTI is a quick and inexpensive method that can enhance visual examination of all tooth surfaces. The aim of this in vivo study is to compare FOTI with bite-wing radiography and visual examination in the detection of approximal and occlusal caries. Materials and methods A total of 46 patients without missing teeth and dentures in the posterior region of jaws were examined for the evaluation of all premolar and molar teeth contacts. Three blinded practitioners examined the patients. First one evaluated radiologically, second one visually, and the last one evaluated with FOTI. Results According to statistical results, bite-wing radiograph had the highest sensitivity. However, evaluation with FOTI had acceptable results to detect approximal caries. Conclusion Study of the results has shown that clinically FOTI is an adjunct method for detection of approximal caries. How to cite this article Eren H, Yuksel HT, Inceoglu B, Kursun ES, Gorgun S. Comparison of Visual Examination, Bite-wing Radiography, and Fiberoptic Transillumination on Caries Detection. J Contemp Dent 2017;7(2):77-81.


2013 ◽  
Vol 31 (7) ◽  
pp. 322-327 ◽  
Author(s):  
Esin Bozdemir ◽  
Emine Sirin Karaarslan ◽  
A. Semih Ozsevik ◽  
M. Ata Cebe ◽  
Ali Murat Aktan

Materials ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1444
Author(s):  
Ilona Rowińska ◽  
Adrianna Szyperska-Ślaska ◽  
Piotr Zariczny ◽  
Robert Pasławski ◽  
Karol Kramkowski ◽  
...  

The article is a concise compendium of knowledge on the etiology of pathogenic microorganisms of all complexes causing oral diseases. The influence of particular components of the diet and the role of oxidative stress in periodontal diseases were described. The study investigated the bacteriostatic effect of the diet of adults in in vivo and in vitro tests on the formation of bacterial biofilms living in the subgingival plaque, causing diseases called periodontitis. If left untreated, periodontitis can damage the gums and alveolar bones. Anaerobic bacteria, called periopathogens or periodontopathogens, play a key role in the etiopathogenesis of periodontitis. The most important periopathogens of the oral microbiota are bacteria of all complexes, including the red complex. The obtained results suggest the possibility of using a specific diet in the prevention and treatment of periodontal diseases-already treated as a disease of civilization. The quoted article is an innovative compilation of knowledge on this subject and it can be a valuable source of knowledge for professional hygienists, dentists, peridontologists, dentistry students and anyone who cares about proper oral hygiene. The obtained results suggest the possibility of using this type of diet in the prophylaxis of the oral cavity in order to avoid periodontitis.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Friederike Litzenburger ◽  
Gerrit Schäfer ◽  
Reinhard Hickel ◽  
Jan Kühnisch ◽  
Katrin Heck

Abstract Background The purpose of this prospective clinical diagnostic study with validation was to compare the diagnostic accuracy of near-infrared transillumination (NIRT), laser fluorescence measurement (LF), alternating current impedance spectroscopy (ACIS) and their combinations as adjunct methods to visual examination (VE) for occlusal caries detection using a hybrid reference standard. Methods Ninety-six first and second non-cavitated permanent molars from 76 individuals (mean age 24.2) were investigated using (VE) (ICDAS) and bitewing radiography (BWR), as well as NIRT, LF and ACIS. The findings of BWR and NIRT were evaluated by two examiners while the other examinations were conducted by one calibrated dentist. The hybrid reference standard consisted of non-operative validation based on the results of VE and BWR and operative validation. Statistical analysis included cross-tabulations, calculation of sensitivity, specificity and area under the receiver operating characteristic curve at three diagnostic thresholds: caries in general, enamel caries and dentin caries. Results NIRT, LF and ACIS exhibited high sensitivity for caries in general [1.00 (1.00–1.00), 0.77 (0.65–0.88), 0.75 (0.63–0.87)) and for dentin caries (0.97 (0.91–1.03), 0.76 (0.76–0.90), 0.64 (0.47–0.80)]. Sensitivity values for enamel caries were weak (0.21, 0.11, 0.37). Specificity values did not fall below 0.65 (NIRT) for all categories and methods, except for NIRT at the caries detection threshold (0.27). A combination of LF and ACIS with VE improved the diagnostic performance at the overall and the enamel caries threshold. The other methods showed fair to excellent discrimination at the overall caries threshold (NIRT 0.64, LF 0.89 and ACIS 0.86) and acceptable discrimination at the dentin caries threshold (NIRT 0.82, LF 0.81 and ACIS 0.79). AUROC for enamel caries exhibited the weakest discrimination. Accuracy was 65.6% for VE, 69.8% for BWR, 50.0% for NIRT, 53.1% for LF and 74.0% for ACIS. Reliability assessment for BWR and NIRT showed at least substantial agreements for all analyses. Conclusions The methods, NIRT, LF and ACIS, revealed different potential but no impeccable performance for occlusal caries detection. All are suitable instruments to detect hidden carious lesion in dentin. As auxiliaries to VE, LF and ACIS showed an increase in diagnostic performance.


Antioxidants ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1061
Author(s):  
Manoj Kumar ◽  
Suraj Prakash ◽  
Radha ◽  
Neeraj Kumari ◽  
Ashok Pundir ◽  
...  

Plant-derived phytochemicals have been touted as viable substitutes in a variety of diseases. All over the world, dentists have turned to natural remedies for dental cure due to the negative possessions of certain antibacterial mediators used in dentistry. Antimicrobial and other drugs are currently in use, but they show some side effects. Since ancient times, antioxidant EOs have been used for different ailments and have grown in popularity over time. Several in vitro, in vivo, and clinical trials have shown the safety and effectiveness of antioxidant essential oils (EOs) in oral health obtained from medicinal plants. The current review of literature provides a summary of secondary metabolites, more specifically EOs from 20 most commonly used medicinal plants and their applications in maintaining oral health. Dental caries and periodontal diseases are the most common and preventable global infectious diseases, with diseases of the oral cavity being considered major diseases affecting a person’s health. Several clinical studies have shown a connection between oral diseases and oral microbiota. This review discusses the role of antioxidant secondary metabolites in inhibiting the growth of oral pathogens and reducing the formation of dental plaque, and as well as reducing the symptoms of oral diseases. This review article contributes a basic outline of essential oils and their healing actions.


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