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An experimental in vivo procedure for the standardised assessment of sealants retention over time

Type:  Articles

Pubblication date:  /1/2016

Authors:  G.F. Ferrazzano*, S. Orlando*, T. Cantile*-**, G. Sangianantoni*, B. Alcidi*, M. Coda*, S. Caruso***, A. Ingenito*

Language:  English

Institution:  *Department of Neuroscience, Reproductive and Oral Sciences Section of Paediatric Dentistry, University of Naples, Federico II Naples, Italy **Bambino Gesł Hospital, Division of Dentistry and Orthodontics Rome, Italy ***Department of Life, Health, and Environmental Sciences University of L'Aquila, L'Aquila, Italy

Publication:  European Journal of Paediatic Dentistry

Publisher:  Ariesdue Srl

Keywords:   Dental caries prevention; Pit and fissure sealants; Sealants retention.

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Title:  An experimental in vivo procedure for the standardised assessment of sealants retention over time

Abstract:  Aim The elaboration of an experimental system to obtain reproducible and comparable photographs of the occlusal surface to monitor sealants retention. Materials and methods An intraoral camera connected to a computer was used to obtain photos of the occlusal surfaces. A specific software was utilized to perform measurements on archived pictures. An experimental two-part system, consisting of a dental arch support and a camera support, connected to each other through holes and pins, was made to obtain a standardised and reproducible placement of the camera in the mouth. In the first part, to test the degree of reliability of the procedure and the percentage of image distortion, 120 first molars were sealed and for each molar ten photographs were taken, using the intraoral camera connected with the dental arch support, the camera support and the dedicated software. In the second part, 165 first molars were sealed and photographed, as above described, immediately after sealing (T0), 6 months (T1) and 1 year later (T2). With the software, the sealed areas were measured. The comparison of the selected sealed areas between T0 and T1, T0 and T2, T1 and T2 determined the percentage of sealant loss. Results In the first part, the experimental procedure showed a reliability of 96.85%. In the second part, the difference in the rate of lost sealant between T0-T1 and T1-T2 was statistically significant (p<0.001). Statistics: ANOVA analysis was made. Conclusions Photographs, obtained through the experimental two-part system, allowing a reproducible positioning of the intraoral camera in oral cavity, could represent a standardised and useful method to monitor sealants retention over time.

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