Detection of Occlusal Caries under Sealants by Use of a Laser Fluorescence System

Takamori, Kazunori; Hokari, Narushi; Okumura, Yasuaki; Watanabe, Shigeru

doi:10.1089/10445470152612008

Cited by 49 publications

(44 citation statements)

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“…Although some researchers have detected a good to excellent performance of the LF device 17,18,19,24,27 , others have not observed this trend 22,23 . Several factors may account for this difference, such as the recommended cut-offs for interpretation of the LF measurements 9 and the storage medium of the sample before the beginning of the study 20,26,28 . If we carefully examine the best cut-off points used for LF readings in clinical studies, one should observe that values higher than 19-20 indicate dentinal involvement and are currently used as a threshold between "sound" and "carious" sites 1,19,30 , which is in agreement with the present investigation.…”

Section: Discussionmentioning

confidence: 99%

Occlusal caries diagnosis in permanent teeth: an in vitro study

Angnes¹,

Angnes²,

Grande

et al. 2005

Braz. oral res.

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ABSTRACT:The reduction in caries prevalence has not occurred uniformly for all dental surfaces. As the occlusal surfaces are still the most likely sites for the development of lesions, new methods of diagnosis are still being evaluated. This study compared a laser fluorescence (LF) system (DIAGNOdent) with the Ekstrand's visual system for in vitro detection of occlusal caries. A total of 57 extracted molars with macroscopically intact occlusal surfaces were selected. Two-examiners assessed 110 sites by visual inspection (VI) and LF. After ten days from the first measurement, all teeth were re-evaluated through the same methods by each examiner. Caries extension was histologically assessed (X 40). The methods were compared by means of sensitivity, specificity, intra-and inter-examiner reproducibility and area under the ROC curve. The kappa's test showed good intra-and inter-examiner reproducibility for both methods. VI and LF showed similar sensitivities for both examiners, however, VI showed higher specificities than LF. The overall analysis, as demonstrated by the area under the ROC curve, showed that VI had a better performance than the LF device. It was concluded that the Ekstrand's visual system is more reliable than the LF device. LF should be considered only as an adjuvant for occlusal caries diagnosis. DESCRIPTORS: Lasers; Fluorescence; Dental caries; Molar; Diagnostic techniques and procedures. RESUMO:A redução da prevalência de cáries não ocorreu uniformemente para todas as superfícies dentárias. Como as superfícies oclusais ainda são as mais susceptíveis ao desenvolvimento de lesões, novos métodos de diagnóstico ainda estão sendo avaliados. Este estudo comparou um sistema de fluorescência a laser (DIAGNOdent -DD) com o método visual de Ekstrand na detecção de cárie oclusal. Um total de 57 terceiros molares com superfícies oclusais macroscopicamente intactas foram selecionados. Dois examinadores examinaram 110 sítios por inspecção visual (IV) e DD. Após dez dias da primeira mensuração, todos os dentes foram novamente avaliados pelos mesmos métodos. A extensão de cárie foi validada por exame histológico (40 X). Os dados foram analisados quanto a sensibilidade, especificidade, reprodutibilidade intra e interexaminador e área sob a curva ROC. O teste kappa demonstrou boa reprodutibilidade intra e interexaminadores para ambos os métodos. A IV e o DD apresentaram sensibilidade semelhante para ambos os examinadores, entretanto, a IV apresentou maior especificidade que o DD. A análise geral, através da área sob a curva ROC, mostrou que a IV teve um melhor desempenho que o DD. Concluiu-se que o critério visual proposto por Ekstrand é mais confiável para o diagnóstico de cáries oclusais. O DD deve ser considerado apenas como um coadjuvante no exame de cárie em superfícies oclusais.

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Section: Discussionmentioning

confidence: 99%

Occlusal caries diagnosis in permanent teeth: an in vitro study

Angnes¹,

Angnes²,

Grande

et al. 2005

Braz. oral res.

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“…5 Detection of proximal lesions is technically more difficult, and in this setting, argon laser-induced fluorescence offers a valuable adjunct to conventional methods. [6][7][8][9] The differential water content of early fissure caries and sound occlusal enamel has also led to the development of methods using the carbon dioxide laser to reveal such lesions, [10][11][12] and to modify the fissure system to increase resistance to future carious attack.…”

Section: 2mentioning

confidence: 99%

The current status of laser applications in dentistry

Walsh

2003

Australian Dental Journal

333

163

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A range of lasers is now available for use in dentistry. This paper summarizes key current and emerging applications for lasers in clinical practice. A major diagnostic application of low power lasers is the detection of caries, using fluorescence elicited from hydroxyapatite or from bacterial by-products. Laser fluorescence is an effective method for detecting and quantifying incipient occlusal and cervical carious lesions, and with further refinement could be used in the same manner for proximal lesions. Photoactivated dye techniques have been developed which use low power lasers to elicit a photochemical reaction. Photoactivated dye techniques can be used to disinfect root canals, periodontal pockets, cavity preparations and sites of peri-implantitis. Using similar principles, more powerful lasers can be used for photodynamic therapy in the treatment of malignancies of the oral mucosa. Laser-driven photochemical reactions can also be used for tooth whitening. In combination with fluoride, laser irradiation can improve the resistance of tooth structure to demineralization, and this application is of particular benefit for susceptible sites in high caries risk patients. Laser technology for caries removal, cavity preparation and soft tissue surgery is at a high state of refinement, having had several decades of development up to the present time. Used in conjunction with or as a replacement for traditional methods, it is expected that specific laser technologies will become an essential component of contemporary dental practice over the next decade.

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“…23 Use of QLF enables easy detection of caries beneath the pit and fissure sealants during the routine and periodic examinations. 24 Caries Prevention Resistance of the tooth surface to penetration of cariogenic agents plays an important role in prevention of caries. Erbium and CO 2 lasers can be successfully used to increase resistance of a newly erupted permanent tooth in children and adolescents to acid erosion.…”

Section: Hard Tissue Applications Of Lasermentioning

confidence: 99%

Types of Lasers and Their Applications in Pediatric Dentistry

2015

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Types of Lasers and Their Applications in Pediatric Dentistry Bahareh AbstractLaser technology has been recently introduced into the dental field with the idea to replace drilling. Having a less painful first dental experience by the use of modern instruments like laser can be an efficient preventive and therapeutic strategy in pediatric dentistry. Pedodontists need to learn the new less invasive technologies and adopt them in their routine practice. This study aimed to review the available types of lasers and their applications in pediatric dentistry. An electronic search was carried out in IranMedex, InterScience, Scopus, Science Direct, PubMed, ProQuest, Medline and Google Scholar databases to find relevant articles published from 2000 to 2014. Relevant textbooks were reviewed as well. Laser can be used as a suitable alternative to many conventional diagnostic and therapeutic dental procedures. It is especially efficient for caries detection and removal, pulp therapy, lowering the risk of infection, inflammation and swelling and reducing bleeding. On the other hand, due to minimal invasion, laser treatment is well tolerated by children. Improved patient cooperation leads to higher satisfaction of the parents, dentists and the children themselves.

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Detection of Occlusal Caries under Sealants by Use of a Laser Fluorescence System

Abstract: This laser diagnosis system makes it easy to detect the existence of caries under a pit and fissure sealant during a routine check-up.

Cited by 49 publications

References 9 publications

Occlusal caries diagnosis in permanent teeth: an in vitro study

Occlusal caries diagnosis in permanent teeth: an in vitro study

The current status of laser applications in dentistry

Types of Lasers and Their Applications in Pediatric Dentistry

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