cariës diagnose

Seppä, L., Anttonen, V., Niinimaa, A. and Hausen, H.
International Journal of Paediatric Dentistry. doi: 10.1111/j.1365-263X.2012.01221.x, 1/1/2012

Background: In our previous study of oral health intervention in children, laser fluorescence (LF) values of occlusal surfaces were reduced after 1 year. Aim: The aim of this study was to explore the relationship between DIAGNOdent pen values and clinical status of the occlusal surfaces. Design: The study conducted in 2007 and 2008 in 700 children aged 13–14 included a clinical examination and LFpen measurement of the occlusal surfaces of first and second molars. Four teams consisting of a dental hygienist and a dental nurse performed the examinations on school premises. The dental hygienist scored the surfaces using the Nyvad criteria for caries assessment; the surfaces were then scanned using a DIAGNOdent pen® device.

© 2012 Wiley

Seppä, L., Anttonen, V., Niinimaa, A. and Hausen, H.
International Journal of Paediatric Dentistry. doi: 10.1111/j.1365-263X.2012.01221.x, 1/1/2012

Background:  In our previous study of oral health intervention in children, laser fluorescence (LF) values of occlusal surfaces were reduced after 1 year. Aim:  The aim of this study was to explore the relationship between DIAGNOdent pen values and clinical status of the occlusal surfaces. Design. The study conducted in 2007 and 2008 in 700 children aged 13–14 included a clinical examination and LFpen measurement of the occlusal surfaces of first and second molars. Four teams consisting of a dental hygienist and a dental nurse performed the examinations on school premises. The dental hygienist scored the surfaces using the Nyvad criteria for caries assessment; the surfaces were then scanned using a DIAGNOdent pen® device. Results:  The more severe the visual caries category was, the higher the mean LFpen values were. Correlation coefficients between LF values and NY categories were 0.542 and 0.408 in years 2007 and 2008, respectively (all examiners combined). The LFpen values of active and inactive lesions did not differ significantly. Conclusions:  The correlation between the mean LFpen values and the NY categories was significant. Fissures can be reliably examined with LF and by visual inspection on school premises if certain special arrangements are made.

© 2012 Wiley

Prof. Dr. Karl-Heinz Kunzelmann
Poliklinik für Zahnerhaltung und Parodontologie, Universität München
ZAHNARZTPRAXIS 04 2011 , 7/12/2011

Wird die Bissflügelaufnahme zur Kariesdiagnostik in naher Zukunft von Fluoreszenzmethoden und digitaler faseroptischer Transillumination abgelöst? Die neuen Geräte haben das Potenzial, die Karies auch an Approximal- und Okklusalflächen gut sichtbar zu machen, sagte Prof. Karl-Heinz Kunzelmann am SSO-Kongress.

© 2011 Medien&Medizin Verlag Zürich

Prof. Dr. Karl-Heinz Kunzelmann
Poliklinik für Zahnerhaltung und Parodontologie, Universität München
ZAHNARZTPRAXIS 04 2011 , 7/12/2011

Wird die Bissflügelaufnahme zur Kariesdiagnostik in naher Zukunft von Fluoreszenzmethoden und digitaler faseroptischer Transillumination abgelöst? Die neuen Geräte haben das Potenzial, die Karies auch an Approximal- und Okklusalflächen gut sichtbar zu machen, sagte Prof. Karl-Heinz Kunzelmann am SSO-Kongress.

© 2011 Medien&Medizin Verlag Zürich

Dr. Jonas Almeida Rodrigues/Bern, Schweiz; Dr. Michele Baffi Diniz/São Paulo, Brasilien; Prof. Adrian Lussi, Dr. Klaus Neuhaus/Bern, Schweiz
Laser Journal, 10/1/2010

Die Diagnostik kariöser Defekte hat sich durch bestimmte Veränderungen der Läsionscharakteristika und durch das Verhalten der Patienten zu einer der großen Herausforderungen in der Zahnmedizin entwickelt.

© 2010 Oemus Media AG

Dr. Jonas Almeida Rodrigues/Bern, Schweiz; Dr. Michele Baffi Diniz/São Paulo, Brasilien; Prof. Adrian Lussi, Dr. Klaus Neuhaus/Bern, Schweiz
Laser Journal, 10/1/2010

Die Diagnostik kariöser Defekte hat sich durch bestimmte Veränderungen der Läsionscharakteristika und durch das Verhalten der Patienten zu einer der großen Herausforderungen in der Zahnmedizin entwickelt. Um das visuelle und radiologische Auffinden von Karies zu unterstützen, wurden neuartige, auf Fluoreszenz basierende Methoden entwickelt und im letzten Jahrzehnt untersucht.

© 2010 Oemus Media AG

Dr. Sabine Geißler, München
Wissenschaft und Fortbildung BZB Juni 10 3, 6/1/2010

Größere Sicherheit bei der Kariesdiagnostik
Der folgende Beitrag stellt die Laserfluoreszenztechnik zur Kariesdiagnostik bei Kindern und Jugendlichen vor und zeigt deren Einsatzbereiche aber auch Anwendungsgrenzen auf.

© 2010 teamwork media GmbH

Dr. Sabine Geißler, München
Wissenschaft und Fortbildung BZB Juni 10 3, 6/1/2010

Größere Sicherheit bei der Kariesdiagnostik
Der folgende Beitrag stellt die Laserfluoreszenztechnik zur Kariesdiagnostik bei Kindern und Jugendlichen vor und zeigt deren Einsatzbereiche aber auch Anwendungsgrenzen auf.

© 2010 teamwork media GmbH

De Benedetto MS, Morais CC, Novaes TF, de Almeida Rodrigues J, Braga MM, Mendes FM
Department of Pediatric Dentistry, Faculdade de Odontologia da Universidade de São Paulo, São Paulo, Brazil
Lasers Med Sci. , 2/16/2010

The aims of this in vitro study were (1) to compare the reliability of a new fluorescence camera (FC; VistaProof) with that of two other laser fluorescence devices (DIAGNOdent and DIAGNOdent pen) in assessing smooth and occlusal caries lesions in primary teeth and (2) to determine the influence of the spacer, the protective cover and air drying on the FC readings. We selected 129 primary molars which were divided into two groups: smooth surfaces (n=68) and occlusal surfaces (n=61).

© PMID: 20157753 [PubMed - as supplied by publisher]

De Benedetto MS, Morais CC, Novaes TF, de Almeida Rodrigues J, Braga MM, Mendes FM
Department of Pediatric Dentistry, Faculdade de Odontologia da Universidade de São Paulo, São Paulo, Brazil
Lasers Med Sci. , 2/16/2010

The aims of this in vitro study were (1) to compare the reliability of a new fluorescence camera (FC; VistaProof) with that of two other laser fluorescence devices (DIAGNOdent and DIAGNOdent pen) in assessing smooth and occlusal caries lesions in primary teeth and (2) to determine the influence of the spacer, the protective cover and air drying on the FC readings. We selected 129 primary molars which were divided into two groups: smooth surfaces (n=68) and occlusal surfaces (n=61). Two trained examiners performed the evaluations using the FC and the other laser fluorescence devices separately. One examiner repeated all assessments after 1 week. Inter- and intraexaminer reproducibility was calculated from the absolute values derived from the devices using intraclass correlation coefficient (ICC) and Bland-Altman analysis. Pearson correlation was performed among the values obtained with the different devices. For aim 2, only teeth from the occlusal surface group were used. Another examiner performed measurements with the FC, varying the size of the spacer, the use of the plastic protective cover and the drying time (0, 3 and 15 s). Wilcoxon's test was used to compare these measurements. High values of interexaminer ICC were observed with the FC in both experiments. However, the highest intraexaminer ICC for smooth surfaces was found for the DIAGNOdent (ICC 0.918). A positive correlation between all methods was observed in both studies. Only drying for 15 s significantly increased the FC readings. In conclusion, the FC showed high reliability for occlusal and smooth surfaces, similar to the other fluorescence methods tested. Additionally, prolonged air drying increased the FC measurements.

© PMID: 20157753 [PubMed - as supplied by publisher]

Astvaldsdóttir A, Tranæus S, Karlsson L, Peter Holbrook W
Department of Cariology, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden
Acta Odontol Scand. , 1/26/2010

Carious tissue fluoresces with a wavelength different from sound tissue when stimulated by light with a wavelength of 655 nm. This difference is thought to have a bacterial origin rather than indicating demineralization. This study aimed to measure fluorescence emitted by normal cultivable caries-associated bacterial flora and typical porphyrin-producing bacteria with DIAGNOdent, and to verify earlier findings that demineralization of the dental hard tissue does not affect DIAGNOdent readings.

© PMID: 20100119 [PubMed - as supplied by publisher]

Astvaldsdóttir A, Tranæus S, Karlsson L, Peter Holbrook W
Department of Cariology, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden
Acta Odontol Scand. , 1/26/2010

Abstract Objective. Carious tissue fluoresces with a wavelength different from sound tissue when stimulated by light with a wavelength of 655 nm. This difference is thought to have a bacterial origin rather than indicating demineralization. This study aimed to measure fluorescence emitted by normal cultivable caries-associated bacterial flora and typical porphyrin-producing bacteria with DIAGNOdent, and to verify earlier findings that demineralization of the dental hard tissue does not affect DIAGNOdent readings. Material and methods. Bacterial samples were collected from five occlusal caries lesions in three subjects. From these, mixed anaerobic flora, Lactobacilli and mutans Streptococci were cultured in up to three different kinds of culture medium. Colonies of Lactobacilli and mutans Streptococci were also measured after transferring them to glass slides. Laboratory teaching strains of Prevotella spp., Porphyromonas gingivalis and Actinomyces odontolyticus were cultured anaerobically and fluorescence measured directly after an appropriate incubation period. Sound enamel surfaces of 15 extracted premolars were demineralized and changes in fluorescence measured. Results. DIAGNOdent readings > 20 were only obtained from young colonies of Prevotella and from colonies of mutans Streptococci cultured on mitis-salivarius-bacitracin agar. Higher measurements were obtained as the bacterial colonies aged. Lower measurements were obtained after transferring colonies to glass slides. Demineralization of enamel did not affect the DIAGNOdent measurements. Conclusions. The change in fluorescence measured with DIAGNOdent has a bacterial origin rather than occurring as a result of demineralization. The measurements are presumably dependent on bacterial metabolites rather than bacteria themselves, and probably record synergistic effects during the carious process rather than the quantity or species of bacteria involved.

© PMID: 20100119 [PubMed - as supplied by publisher]

Askaroglou E, Kavvadia K, Lagouvardos P, Papagiannoulis L
Department of Paediatric Dentistry, School of Dental Medicine, University of Athens, Athens, Greece.
Lasers Med Sci., 1/23/2010

The aim of this study was to investigate in vitro the effects of clear or opaque sealants, on the laser fluorescence readings for occlusal caries detection in primary molars. For this reason, 427 occlusal sites in 199 teeth were clinically examined by one dentist, and their laser fluorescence (LF) was measured locally with the DIAGNOdent device, both before and after the teeth had been sealed with Delton Clear LC or Delton Opaque LC.

© PMID: 20099071 [PubMed - as supplied by publisher]

Askaroglou E, Kavvadia K, Lagouvardos P, Papagiannoulis L
Department of Paediatric Dentistry, School of Dental Medicine, University of Athens, Athens, Greece.
Lasers Med Sci., 1/23/2010

The aim of this study was to investigate in vitro the effects of clear or opaque sealants, on the laser fluorescence readings for occlusal caries detection in primary molars. For this reason, 427 occlusal sites in 199 teeth were clinically examined by one dentist, and their laser fluorescence (LF) was measured locally with the DIAGNOdent device, both before and after the teeth had been sealed with Delton Clear LC or Delton Opaque LC. For 29 of these teeth, we also measured the laser fluorescence by scanning the fissures before and after sealant application. We used Wilcoxon's signed ranks sum test and Spearman's rho correlation to compare and correlate the LF readings before and after sealing, while we used the Mann-Whitney U test to compare the two materials. Finally, we used the Kruskal-Wallis test to compare readings taken locally with those taken by the scanning technique. The results showed that there was an LF increase by a mean of 6 units after sealing with the clear material, while there was a 15 units decrease after sealing with the opaque one. LF readings before and after sealing correlated better for the clear material (rho = 0.826) than for the opaque one (rho = 0.507). LF readings were statistically significantly affected by both clear and opaque sealants (P < 0.001). However, this effect was statistically significantly less pronounced for the clear material (P < 0.001). There was also no difference between the LF readings taken by the fissure scanning technique or locally (P > 0.05). In conclusion, LF readings for occlusal caries detection in primary molars were significantly affected by both the clear and the opaque materials. However, the effect for the opaque material was more pronounced.

© PMID: 20099071 [PubMed - as supplied by publisher]

Kimura Y, Tanabe M, Amano Y, Kinoshita J, Yamada Y, Masuda Y
Division of Endodontics, Department of Conservative Dentistry, Ohu University School of Dentistry, 31-1 Misumido, Tomita-machi, Koriyama-city, Fukushima, Japan
J Dent. , 12/1/2009

Many methods are used to detect vertical root fractures, but most are not adequate for identification of incomplete fractures or cracks. The purpose of this study was to evaluate the effects of three detergents on detection of vertical root fractures by DIAGNOdent with methylene blue (MB) solution.

© PMID: 19665275 [PubMed - indexed for MEDLINE]

Kimura Y, Tanabe M, Amano Y, Kinoshita J, Yamada Y, Masuda Y
Division of Endodontics, Department of Conservative Dentistry, Ohu University School of Dentistry, 31-1 Misumido, Tomita-machi, Koriyama-city, Fukushima, Japan
J Dent. , 12/1/2009

OBJECTIVE: Many methods are used to detect vertical root fractures, but most are not adequate for identification of incomplete fractures or cracks. The purpose of this study was to evaluate the effects of three detergents on detection of vertical root fractures by DIAGNOdent with methylene blue (MB) solution. METHODS: Vertical incomplete fractures were artificially created on the roots of extracted human teeth, the DIAGNOdent values (D values) recorded in the presence or absence of MB solution, and the effects of detergents on D values examined. The effects of 20% ethanol on enhancing detergent action were also investigated. Statistical analysis was performed using the Mann-Whitney U-test; a value of p<0.01 was considered significant. RESULTS: D values increased significantly when MB solution was used with 0.1% or 1.0% polyoxyethylene (10) octylphenyl ether compared to MB solution only. CONCLUSION: These findings suggest that 0.1% or 1.0% polyoxyethylene (10) octylphenyl ether could be used as an enhancer for detection of vertical root fractures by DIAGNOdent using MB solution.

© PMID: 19665275 [PubMed - indexed for MEDLINE]

Goel A, Chawla HS, Gauba K, Goyal A.
Department of Pedodontics and Preventive Dentistry, D. J. College of Dental Sciences and Research, Modinagar, India. dr.amitagoel@gmail.com
J Indian Soc Pedod Prev Dent. , 12/1/2009

This study was conducted to compare the in vivo effectiveness of DIAGNOdent with other conventional methods (visual, tactile and bitewing radiographs) for the detection of occlusal caries in primary molars. Another objective of the study was to calculate new cut-off limits for the detection of caries by DIAGNOdent in primary teeth.

© PMID: 19915274 [PubMed - in process]

Goel A, Chawla HS, Gauba K, Goyal A.
Department of Pedodontics and Preventive Dentistry, D. J. College of Dental Sciences and Research, Modinagar, India. dr.amitagoel@gmail.com
J Indian Soc Pedod Prev Dent. , 12/1/2009

AIM: This study was conducted to compare the in vivo effectiveness of DIAGNOdent with other conventional methods (visual, tactile and bitewing radiographs) for the detection of occlusal caries in primary molars. Another objective of the study was to calculate new cut-off limits for the detection of caries by DIAGNOdent in primary teeth. MATERIALS AND METHODS: Eighty-four primary molars in 52 children (aged 8-12 years), which were indicated for extraction, were selected and evaluated for dental caries using DIAGNOdent, visual and tactile examination and bitewing radiographs. Histological examination of the sections, prepared subsequent to extraction of the teeth, served as the gold standard for comparison of the above-mentioned methods. RESULTS: When considering enamel caries, values obtained for sensitivity, specificity and accuracy were 48.15, 100 and 49.40% for visual examination, 48.15, 100.00 and 49.40% for tactile examination, 49.38, 50.00 and 49.40% for bitewing radiographs, 85.19, 50.00 and 84.34% for DIAGNOdent scores interpreted according to manufacturer's cut-off limits and 81.48, 100.00 and 81.93% for DIAGNOdent scores interpreted according to newly formulated cut-off limits, respectively. At dentin caries cut-off levels, the values of sensitivity, specificity and accuracy for visual examination were 52.78, 89.36 and 73.49%; 50.00, 91.49 and 73.49% for tactile examination; 30.56, 82.98 and 60.24% for bitewing radiographs; 72.22, 76.60 and 74.70% for DIAGNOdent scores when interpreted according to manufacturer's cut-off limits and 77.48, 74.47 and 75.90%, respectively, for the DIAGNOdent scores when interpreted according to the newly formulated cut-off limits. CONCLUSIONS: DIAGNOdent showed higher sensitivity and accuracy as compared with other conventional methods for detection of enamel caries, whereas for detection of dentinal caries, even though the sensitivity was high, accuracy of the DIAGNOdent device was similar to other conventional caries diagnostic methods.

© PMID: 19915274 [PubMed - in process]

Apostolopoulou D, Lagouvardos P, Kavvadia K, Papagiannoulis L
Dept. Paediatric Dentistry, School of Dentistry, University of Athens, Greece.
Eur Arch Peadiatr Dent;10Suppl 1:11-5, 11/10/2009

This was to validate in vitro a laser fluorescence device, DIAGNOdent 2095 - DD, on the detection of occlusal caries in primary molars using the histological examination as the gold standard and to compare the laser fluorescence findings to the results of the conventionally used diagnostic methods.

© Axel Springer Verlag; PMID: 19863893 [PubMed - in process]

Apostolopoulou D, Lagouvardos P, Kavvadia K, Papagiannoulis L
Dept. Paediatric Dentistry, School of Dentistry, University of Athens, Greece.
Eur Arch Peadiatr Dent;10Suppl 1:11-5, 11/10/2009

AIM: This was to validate in vitro a laser fluorescence device, DIAGNOdent 2095 - DD, on the detection of occlusal caries in primary molars using the histological examination as the gold standard and to compare the laser fluorescence findings to the results of the conventionally used diagnostic methods. STUDY DESIGN AND METHODS: 111 occlusal pits in 24 extracted primary molars were examined for caries by one trained operator (Intra-examiner Reliability K>0.83), using direct visual (DV), indirect visual (IDV), radiographic (XR) and fluorescence (DD) examinations and then the extent of caries was determined histologically. Sensitivity, specificity, accuracy and the area under the ROC curve - AUC were calculated for all methods, using the histological evaluation as the gold standard. STATISTICS: Differences between examination methods were estimated by pair-wise comparison of their respective AUC. RESULTS: DD's sensitivity for enamel and for dentine lesions respectively was 0.90 and 0.36, its specificity 0.36 and 0.91 and its accuracy 0.61 and 0.65. The DD device exhibited better sensitivity than specificity for enamel lesions and better specificity than sensitivity for lesions into dentine. The DD device was found to have the highest sensitivity for lesions into enamel, specificity and accuracy and as well as the largest AUC compared with all other methods. For lesions into dentine however, according to AUC values the DD was not statistically significant different from the other methods. CONCLUSION: Compared with the other methods, the DD had the highest validity for enamel caries while its validity for caries into dentine was not statistical different from the other methods.

© Axel Springer Verlag; PMID: 19863893 [PubMed - in process]