SciELO - Scientific Electronic Library Online

vol.14 issue4Joint sounds and signs of temporomandibular disorder: a comparative study by means of manual palpation and computer-based vibrational analysisComparative study of the Greulich & Pyle and Tanner & Whitehouse methods for estimating skeletal age author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Pesquisa Odontológica Brasileira

Print version ISSN 1517-7491


PARDI, Vanessa; MIALHE, Fábio Luiz; PEREIRA, Antonio Carlos  and  MENEGHIM, Marcelo de Castro. In vitro evaluation of the DIAGNOdent device for occlusal diagnosis. Pesqui. Odontol. Bras. [online]. 2000, vol.14, n.4, pp.372-377. ISSN 1517-7491.

The aim of this study was to determine the effectiveness and reliability of laser fluorescence measurements in relation to occlusal caries diagnosis. DIAGNOdent 2095 (Kavo, Biberach, Germany), which has been developed especially for caries diagnosis, was utilized. Five (5) teeth were examined in the pilot test; after that, ten (10) teeth were examined in order to calibrate both examiners. Data were obtained from 66 teeth (36 molars and 30 premolars), totalizing 144 sites identified through photographs of the occlusal surfaces. Reproducibility was evaluated in 10 teeth.  The interexaminer Spearman correlation (r) was 0.89 and the intra-examiner, 0.93 and 0.97 (examiner A and B, respectively). Validation was carried out by histological examination (stereomicroscope). For the two examiners the sensitivity of the device was relatively high, varying from 0.81 to 1.00, while specificity varied according to which validation criterion was used (0.77 - 0.86: enamel lesion / 0.52 - 0.59: dentin lesion). It was concluded that DIAGNodent presented good capacity of identifying any alteration of the dental surface, nevertheless it presents the disadvantage of accomplishing many false-positive diagnosis when the validation criterion is dentin lesion.

Keywords : Lasers; Dental caries; Diagnosis.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf epdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License